Vertical automatic winding device for hot-rolled strip steel

Abstract

A vertical automatic winding device for hot-rolled strip steel relates to winding equipment for strip steel production in the field of steel products and comprises a winding table located in front of a conveying roller, a lifting winding drum is arranged in the center of the winding table, and a clamping groove for clamping the end of the strip steel is formed in the lifting winding drum. A track and a self-propelled trolley moving along the track are arranged above the lifting winding drum, a mechanical claw for clamping and releasing the end of the strip steel is arranged below the self-propelled trolley, a guide groove is formed between the conveying roller and the winding table, the guide groove is perpendicular to the lifting winding drum and avoids the center of the lifting winding drum, and swing assemblies are symmetrically arranged on the two sides of the guide groove. According to the invention, the existing mechanical claw is adopted to replace manual traction, and is matched with the coiling track of a special coiling structure and end positioning, so that the strip steel traction structure capable of being autonomously used in a high-temperature and high-humidity environment is designed, manual operation is replaced, the used equipment is relatively simple, the later maintenance is very convenient, and the cost is low.

Description

Technical Field

[0001] The present invention relates to a coiling device for strip steel production in the field of steel products, specifically a vertical automatic coiling device for hot-rolled strip steel. Background Art

[0002] Strip steel is a kind of steel product with a strip shape among various steel products. It is a kind of steel supplied in coils with a width within 1300 mm and a length slightly different according to the size of each coil. Strip steel has the characteristics of high strength, good toughness, high dimensional accuracy, strong processability, etc., and is widely used in fields such as construction, automobile manufacturing, machinery manufacturing, household appliance manufacturing, electronic information, energy chemical industry, daily necessities, etc.

[0003] Strip steel is generally produced by hot rolling or cold rolling processes. Hot-rolled strip steel is obtained by heating a steel billet to a certain temperature and then rolling it into strip steel with the required thickness and width through a hot rolling mill; cold-rolled strip steel is further cold-rolled on the basis of hot-rolled strip steel to obtain higher dimensional accuracy, surface quality and better mechanical properties.

[0004] In the prior art, since cold-rolled strip steel does not involve heating problems, during the coiling process after cold rolling, horizontal coiling is generally adopted, that is, the strip steel moves flat on the conveying rollers and is coiled into a steel coil by a coiling machine;

[0005] In the production of hot-rolled strip steel, the steel billet needs to be heated to a certain temperature first and then rolled by a hot rolling mill. During the entire rolling process, the strip steel remains at a relatively high temperature. After rolling is completed, cooling means are needed to reduce the temperature of the strip steel to a certain extent before coiling can be carried out. In order to improve the cooling efficiency, after the hot-rolled strip steel comes out of the hot rolling mill, it is generally flipped so that its surface is perpendicular to the conveying rollers. At this time, cooling devices such as water cooling and air cooling arranged on both sides simultaneously cool the two side surfaces of the strip steel, and can achieve the cooling of the strip steel as quickly as possible within a limited production site.

[0006] Since the strip steel is perpendicular to the conveying rollers at this time, the device for coiling it into a strip steel coil is called a vertical coiling machine; the core of the vertical coiling machine lies in a rotatable mandrel, and the central axis of the mandrel is perpendicular to the ground. At this time, the end of the strip steel needs to be clamped into the card slot on the mandrel, and then the coiling machine is started to rotate the mandrel to complete the coiling of the strip steel.

[0007] Since the strip is vertical at this time, that is, perpendicular to the conveyor roller, the contact friction between the two is very small. Relying solely on the friction between the conveyor roller and the strip cannot move the strip forward to the reel. Moreover, the positions of the ends of different strips on the conveyor roller are also different. And the entire working area has high temperature and humidity, and some precision electronic components are not suitable for this environment. Considering costs, generally, workers are used to manually pull the end of the strip into the card slot of the reel. However, because the temperature of the strip is still relatively high at this time, and after coming out of the hot rolling mill, the initial speed of the strip is also very high. When workers manually pull the end of the strip into the card slot of the reel, the operation risk is relatively high, and industrial accidents are likely to occur. Summary of the Invention

[0008] In order to solve the problem of high operation risk and easy occurrence of industrial accidents caused by manually pulling the end of the steel strip into the card slot of the reel when the existing hot-rolled strip is vertically coiled, the present invention provides a vertical automatic winding device for hot-rolled strip. This device uses an existing mechanical claw to replace manual traction, and cooperates with a coiling track and end positioning of a special structure for coiling, so as to design a strip traction structure that can be used independently in a high-temperature and high-humidity environment. It not only replaces manual labor, but also the equipment used is relatively simple, and the later maintenance is very convenient and the cost is low.

[0009] The technical solution adopted by the present invention to solve the above technical problems is: a vertical automatic winding device for hot-rolled strip. The automatic winding device includes a coiling table in front of the conveyor roller. A lifting reel that can descend and extend out of the surface of the coiling table is provided at the center of the coiling table, and the lifting reel can rotate synchronously with the coiling table after extending out of the coiling table. At least one card slot for clamping the end of the strip is provided on the lifting reel along its height direction. A track and a self-propelled trolley moving along the track are provided above the lifting reel. A mechanical claw for clamping and releasing the end of the strip is provided below the self-propelled trolley. A guiding groove is provided between the conveyor roller and the coiling table, and the guiding groove is perpendicular to the lifting reel and avoids the center of the lifting reel. Swing components are symmetrically arranged on both sides of the guiding groove. These two swing components are arranged in a V shape, and the two swing components periodically open and close to adjust the end of the strip into the guiding groove. The track includes a surrounding section concentric with the lifting reel and surrounding its outer side and a straight section directly above the guiding groove. When the mechanical claw clamps the end of the strip and moves to the front end of the straight section, the end of the strip avoids the center of the lifting reel and contacts its side wall, and deforms closely against the side wall of the lifting reel when running around the surrounding section with the self-propelled trolley, and then the end of the strip automatically snaps into the card slot when encountering the card slot.

[0010] As an optimized scheme of the above vertical automatic winding device for hot-rolled strip, an outward expansion part is provided at one end of the guiding groove away from the lifting reel.

[0011] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, the end of the surrounding section is connected to the end of the straight section through a rotating section.

[0012] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, the lifting drum includes an inner cylinder and an outer cylinder surrounding the inner cylinder, and an annular gap for clamping the end of the strip steel is formed between the inner and outer cylinders. The at least one card slot is arranged on the outer cylinder along the axial direction of the outer cylinder and penetrates through the top and bottom of the outer cylinder.

[0013] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, the swinging assembly includes a column and a swinging member capable of flipping around the column, and the swinging member is driven by the expansion and contraction of a telescopic cylinder to swing around the column.

[0014] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, the swinging member is a rectangular plate-like member or a grid plate structure composed of several horizontally arranged flat plates, and two intersecting fastening strips are arranged between adjacent two flat plates; one end of the swinging member is hinged to the column, and the other end extends to the conveying roller.

[0015] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, a cylindrical cavity is arranged at the center of the coiling table, the lifting drum is arranged in the cylindrical cavity, and is driven by a lifting structure at its bottom to extend to the surface of the coiling table or completely retract into the cylindrical cavity. After the lifting drum extends to the limit position, it can be connected to the coiling table and rotate synchronously with the coiling table.

[0016] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, the lifting drum is fixedly connected to the lifting structure through a rotating mechanism. The rotating mechanism includes a fixed part and a rotating part that can rotate relative to each other. The bottom surface of the fixed part is fixedly connected to the lifting structure, and the rotating part is rotatably arranged above the fixed part through a central rotating shaft.

[0017] As another optimized solution for the above-mentioned vertical automatic winding device for hot-rolled strip steel, a plurality of locking mechanisms are arranged around the side wall of the rotating mechanism. Each locking mechanism includes a clamping strip slidably arranged in a counterbore on the side wall of the rotating part, and one end of the clamping strip is fixed to a compression spring arranged in the counterbore, and the other end is an inclined slope. Locking holes are arranged on the inner wall of the cylindrical cavity of the coiling table at the lifting and lowering trajectory of the clamping strip. During the rising process of the clamping strip, it can be clamped into the locking hole under the push of the compression spring to realize the locking of the rotating part and the coiling table. Or, during the descending process of the clamping strip, the inclined slope of the clamping strip can slide out of the locking hole to realize the separation of the rotating part and the coiling table.

[0018] As another optimization solution of the above-mentioned vertical automatic winding device for hot-rolled strip steel, a gear ring is provided at the edge of the coiling table, and the gear ring is meshed with the gear ring at the edge of the driving wheel set on one side of the coiling table.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1) The present invention utilizes the existing mechanical claws and self-propelled trolleys to move on the track to replace manual traction, thereby preventing the occurrence of production accidents; the periodic opening and closing of the swing assembly and the setting of the guide groove can make the end of the strip steel eventually be guided into the guide groove no matter where it is, so that the mechanical claw can grab the end of the strip steel; and the setting of the straight section and the surrounding section on the track can make the end of the strip steel slide along the side wall of the lifting drum in a curved shape, and automatically snap into the slot after encountering the slot;

[0021] 2) The present invention relies on existing mature technologies such as rails, self-propelled trolleys, mechanical claws, and the periodic opening and closing of the swinging assembly driven by a cylinder or an oil cylinder, and combines the guide groove design on the bottom surface, so that the end of the strip can be gathered into the guide groove at any position, which is convenient for being grasped by the robot and automatically inserted into the slot; these devices and structures have low requirements on the use environment and are fully adapted to operations in high temperature and high humidity environments. The subsequent maintenance is very convenient and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front schematic diagram of the present invention (the end of the strip has been clamped but has not yet been coiled);

[0023] Figure 2 It is a top view schematic diagram of the present invention (the strip steel on the conveying roller is omitted);

[0024] Figure 3 It is a top view schematic diagram of the present invention (transmission rollers are omitted);

[0025] Figure 4 It is a partial cross-sectional schematic diagram of the lifting drum and the winding platform of the present invention;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of point A in the middle (the locking mechanism is in a locked connection state);

[0027] Figure 6 for Figure 4 An enlarged schematic diagram of point A in the middle (the locking mechanism is in a disengaged state);

[0028] Figure 7 The figure is the coordination relationship diagram of the track, lifting drum and guide groove (top view);

[0029] Figure 8It is a corresponding relationship diagram (top view) of the lifting drum and the guiding groove;

[0030] Figure 9 It is a structural schematic diagram of the swinging assembly;

[0031] Figure 10 It is a schematic diagram when the end of the strip steel just catches into the card slot;

[0032] Figure 11 It is a schematic diagram when the strip steel is wound onto the lifting drum;

[0033] Figure 12 It is a wound strip steel coil, and at this time the lifting drum has descended;

[0034] Figure 13 It is a schematic diagram before starting to wind the next coil of strip steel. At this time, the lifting drum is still below the coiling table, but is ready to start rising;

[0035] Reference numerals: 1. Coiling table, 101. Driving wheel disc, 102. Locking hole, 2. Rotary mechanism, 201. Lifting structure, 202. Rotating part, 203. Fixed part, 204. Rotating shaft, 205. Card strip, 206. Compression spring, 207. Inclined slope, 3. Lifting drum, 301. Outer cylinder, 302. Inner cylinder, 303. Annular seam, 304. Card slot, 4. Track, 401. Self-propelled trolley, 402. Mechanical claw, 403. Straight section, 404. Surrounding section, 405. Rotary section, 5. Swinging assembly, 501. Telescopic cylinder, 502. Swinging part, 503. Column, 504. Fastening strip, 6. Strip steel, 7. Conveyor roller, 701. Guiding groove, 702. Outer expansion part. Specific embodiments

[0036] The technical solutions of the present invention will be further elaborated in detail below in combination with specific embodiments. For parts not described in the following embodiments of the present invention, such as the model of the manipulator, the installation and control of its grasping and releasing, the structure, model, and control method of the self-propelled trolley moving on the track, how to make the driving wheel disc rotate and drive the rotation of the coiling table through the meshing of the gear ring, the load-bearing method of the coiling table, how to make the telescopic cylinder periodically expand and contract to drive the opening and closing of the swinging assembly, etc., are all regarded as the prior art known or should be known to those skilled in the art.

[0037] Embodiment 1

[0038] A vertical automatic coiling device for hot-rolled strip steel, such as Figure 1 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown in the figure, the automatic winding device includes a winding table 1 in front of the conveying roller 7. A lifting drum 3 that can descend and extend from the surface of the winding table 1 is provided at the center of the winding table 1. When the lifting drum 3 descends to the limit position, the whole lifting drum 3 is located below the position of the winding table 1, so as not to affect the movement of the wound strip coil; when the lifting drum 3 rises to the limit position, the whole lifting drum 3 is on the surface of the winding table 1 and can be locked and fixed with the winding table 1, and the two rotate synchronously, so that the strip 6 can be wound around its side surface, and the lifting drum 3 can rotate synchronously with the winding table 1 after extending out of the winding table 1. A toothed ring is provided at the edge of the winding table 1, and this toothed ring meshes with the toothed ring at the edge of the driving wheel disc 101 provided on one side of the winding table 1. The driving wheel disc 101 is driven to rotate by conventional power equipment such as a motor and a speed reducer, so as to drive the rotation of the winding table 1 by relying on the meshing of the toothed rings; at least one card slot 304 for clamping the end of the strip 6 is arranged on the lifting drum 3 along its height direction. The card slot 304 is strip-shaped and is vertically arranged on the side surface of the lifting drum 3, and its length is greater than the width of the strip 6, so that the end of the strip 6 can be easily clamped into the card slot 304. The width of the card slot 304 is generally more than 2 times the thickness of the strip 6, generally 2 - 5 times, such as Figure 2 and Figure 3As shown, a track 4 and a self-propelled trolley 401 moving along the track 4 are arranged above the lifting drum 3, and a mechanical claw 402 for clamping and releasing the end of the strip steel 6 is arranged below the self-propelled trolley 401. When the mechanical claw 402 grabs the end of the strip steel 6, it is necessary to ensure that the end of the strip steel 6 leaks out of the mechanical claw 402 by at least 10 cm, generally 10-30 cm; the self-propelled trolley 401 adopts a trolley with power that can move on the track 4 in the prior art, and the trolley is manually controlled to move and stop; an existing commercially available mechanical claw 402 is suspended on the trolley. The claw 402 can be automatically controlled by programming, or it can be clamped and released by a manual remote control; the mechanical claw 402 is generally raised and lowered by an electric push rod to keep the mechanical claw 402 with a certain rigidity in the air. These are mature existing technologies and do not involve the improvement points of the present invention. They will not be repeated here. A guide groove 701 is provided between the conveying roller 7 and the winding table 1. The guide groove 701 is an open groove opened on the ground, that is, both ends of it have openings to facilitate the entry and exit of the end of the strip steel 6, and its width is generally the thickness of the strip steel 6. 1-3 times of the guide groove 701, and the guide groove 701 is perpendicular to the lifting drum 3 and avoids the center of the lifting drum 3, so that when the end of the strip steel 6 extends through the guide groove 701 to contact the side wall of the lifting drum 3, its contact point is on the side of the nearest point. The so-called nearest point refers to the point that contacts the side wall of the lifting drum 3 when a virtual line parallel to the guide groove 701 passes through the center of the lifting drum 3. Swinging components 5 are symmetrically arranged on both sides of the guide groove 701. The two swinging components 5 are arranged in a V shape, and the tips of the V shape are located on both sides of the guide groove 701. The V-shaped tip is in a hinged or transferred state, so that the swing assembly 5 swings back and forth around the V-shaped tip, and the two swing assemblies 5 open and close periodically to adjust the end of the steel strip 6 to the guide groove 701. Due to the strength and toughness of the steel strip 6 itself, when the end of the steel strip 6 is on the motion trajectory of the other end of the swing assembly 5, the two swing assemblies 5 gradually shrink, which will squeeze the zigzag arrangement of the steel strip 6 to change its arrangement state, and the overall arrangement width of the steel strip 6 gradually decreases, and the end of the steel strip 6 gradually moves toward the V-shaped tip of the swing assembly 5 and enters the guide groove 701.The track 4 includes a surrounding section 404 that is concentric with the lifting reel 3 and surrounds its outer side, and a straight section 403 that is directly above the guiding groove 701. The surrounding section 404 is annular, and the distance between its outer sidewall and the outer sidewall of the lifting reel 3 is determined according to the size of the self-propelled trolley 401. That is, when the self-propelled trolley 401 runs along the surrounding section 404, the end of the strip steel 6 clamped by the mechanical claw 402 below it can be in a certain bent state and always keep close contact with the sidewall of the lifting reel 3. And when the mechanical claw 402 clamps the end of the strip steel 6 and moves to the front end of the straight section 403, the end of the strip steel 6 avoids the center of the lifting reel 3 and contacts its sidewall, and deforms closely against the sidewall of the lifting reel 3 when running around the surrounding section 404 with the self-propelled trolley 401. Then, after encountering the card slot 304, the end of the strip steel 6 automatically snaps into the card slot 304.;

[0039] In this embodiment, in order to enable the end of the strip steel 6 to enter the guiding groove 701 more smoothly, as Figure 7 shown, an outward expansion part 702 is provided at one end of the guiding groove 701 away from the lifting reel 3. The shape of the outward expansion part 702 is a V-shaped groove, and its width gradually increases in the direction away from the lifting reel 3, so as to facilitate the end of the strip steel 6 to enter the outward expansion part 702 and be restricted by the outward expansion part 702 to move forward into the guiding groove 701. The guiding groove 701 is a long groove, and its width can be an equal-width groove that is 1-3 times the thickness of the strip steel, or a variable-diameter groove, that is, the closer to the lifting reel 3, the smaller the width of the guiding groove 701, and the minimum is generally 1-3 times the thickness of the strip steel. The depth of the guiding groove 701 and the outward expansion part 702 is generally at least 3 cm.

[0040] In this embodiment, as Figure 7 shown, the end of the surrounding section 404 is connected to the end of the straight section 403 through a turning section 405. The surrounding section 404 is an arc with a central angle of at least 200°, generally 200-300°. At this time, the number of card slots 304 is 2, and they are symmetrically distributed, that is, the connection line of the two card slots 304 passes through the center of the lifting reel 3. The turning section 405 can be in the same horizontal plane as the surrounding section 404 and the straight section 403, or can be higher than the horizontal plane formed by the surrounding section 404 and the straight section 403 first, and then gradually drop to the same position as this plane, so as to facilitate the self-propelled trolley 401 to return to the initial position on the straight section 403. This initial position is generally above the part of the straight section 403 that is away from the lifting reel 3 of the guiding groove 701.

[0041] Embodiment 2

[0042] This embodiment is an improved scheme based on Embodiment 1. Its main structure is the same as that of Embodiment 1. The improvement lies in that the lifting reel 3 preferably adopts the following structure, as Figure 8As shown, it includes an inner cylinder 302 and an outer cylinder 301 surrounding the inner cylinder 302. Both are concentric cylinder structures made of metal, and a ring gap 303 for clamping the end of the strip steel 6 is formed between the inner and outer cylinders. The width of the ring gap 303, that is, the distance between the inner cylinder 302 and the outer cylinder 301, is generally 2 - 3 times the thickness of the strip steel 6. The at least one card slot 304 is arranged on the outer cylinder 301 along the axial direction of the outer cylinder 301 and penetrates through the top and bottom of the outer cylinder 301.

[0043] Embodiment 3

[0044] This embodiment is another improved solution based on Embodiment 1. Its main structure is the same as that of Embodiment 1. The improvement lies in: as Figure 3 and Figure 9 shown, the swing assembly 5 includes a column 503 and a swing member 502 that can be flipped around the column 503, and the swing member 502 is driven by the expansion and contraction of the telescopic cylinder 501 to swing around the column 503;

[0045] In this embodiment, the swing member 502 is a rectangular plate-like member, or, as Figure 9 shown, a grid plate structure composed of several horizontally arranged flat plates, and two crossed fastening strips 504 are arranged between adjacent two flat plates; one end of the swing member 502 is hinged to the column 503, and the other end extends to the conveying roller 7. When the distance between the two swing members 502 is the farthest, the ends of the two swing members 502 are on both sides of the conveying roller 7, so that the end of the strip steel 6 is always in the V-shaped space formed by the two swing members 502. When the distance between the two swing members 502 is the smallest, the distance is generally 1 - 3 times the width of the guiding groove 701.

[0046] Embodiment 4

[0047] This embodiment is another improved solution based on Embodiment 1. Its main structure is the same as that of Embodiment 1. The improvement lies in: as Figure 1 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 shown, a cylindrical cavity is provided at the center of the coiling table 1, that is, the coiling table 1 is an annular structure with a hollow in the middle. The bottom enables the coiling table 1 to rotate around its center through several slewing bearing structures, such as the cooperation of balls and tracks, as Figure 4As shown, the lifting drum 3 is arranged in the cylindrical cavity and is driven by the lifting structure 201 at its bottom to extend to the surface of the winding table 1 or be completely retracted into the cylindrical cavity. After the lifting drum 3 extends to the limit position, it can be connected to the winding table 1 and rotate synchronously with the winding table 1. The lifting structure 201 can be a hydraulically driven lifting rod, or a motor-driven lifting screw, or other similar lifting structures, and its purpose is to be able to drive the entire lifting drum 3 to lift and lower.

[0048] In this embodiment, as Figure 4 , Figure 5 and Figure 6 shown, the lifting drum 3 is fixedly connected to the lifting structure 201 through the slewing mechanism 2. The slewing mechanism 2 includes a fixed part 203 and a rotating part 202 that can rotate relative to each other. Both the fixed part 203 and the rotating part 202 are disc structures but have a certain thickness. The bottom surface of the fixed part 203 is fixedly connected to the lifting structure 201. For example, when the lifting structure 201 adopts a motor-driven lifting screw, the bottom surface of the fixed part 203 is welded and fixed to the top end of the lifting screw. The rotating part 202 is rotatably arranged above the fixed part 203 through the central rotating shaft 204. At this time, in order to facilitate the stability of the rotation of the rotating part 202, balls can be arranged in the gap between the rotating part 202 and the fixed part 203, and these balls roll in their specific annular tracks;

[0049] In this embodiment, as Figure 4 , Figure 5 and Figure 6As shown, a plurality of locking mechanisms are arranged around the side wall of the slewing mechanism 2. These locking mechanisms are evenly arranged around the side surface of the rotating part 202, and the number is generally 4-8. Each locking mechanism includes a clamping strip 205 slidably arranged in a counterbore on the side wall of the rotating part 202. The counterbore is a horizontal hole opened on the side wall of the rotating part 202, and its axis is in the radial direction of the rotating part 202. The shape of the clamping strip 205 can be rectangular or cylindrical, generally cylindrical, and its size is slightly smaller than the inner diameter of the counterbore to facilitate free sliding. One end of the clamping strip 205 is fixed to a compression spring 206 arranged in the counterbore, and the other end is an inclined slope surface 207, which is formed by cutting off a piece from the end of the clamping strip 205 downward and inward. A locking hole 102 is arranged on the inner wall of the cylindrical cavity of the coiling table 1 at the lifting trajectory of the clamping strip 205. The slope surface inclined downward is formed on the lower side of the entrance of the locking hole 102, and the slope of this slope surface matches that of the inclined slope surface 207. The depth of the locking hole 102 is generally not less than half of the extended length of the clamping strip 205 in the compression spring 206. And during the rising process of the clamping strip 205, it can be clamped into the locking hole 102 under the push of the compression spring 206 to realize the locking of the rotating part 202 and the coiling table 1. Or, during the descending process of the clamping strip 205, the inclined slope surface 207 of the clamping strip 205 can slide out of the locking hole 102 to realize the separation of the rotating part 202 and the coiling table 1.

Claims

1. A vertical automatic winding device for hot-rolled steel strip, the automatic winding device comprising a winding table (1) located in front of a conveying roller (7), a lifting drum (3) capable of descending and extending from the surface of the winding table (1) is arranged at the center of the winding table (1), and the lifting drum (3) can rotate synchronously with the winding table (1) after extending from the winding table (1), at least one clamping groove (304) for clamping the end of the steel strip (6) is arranged on the lifting drum (3) along its height direction, a track (4) and a self-propelled trolley (401) moving along the track (4) are arranged above the lifting drum (3), and a mechanical claw (402) for clamping and releasing the end of the steel strip (6) is arranged below the self-propelled trolley (401), characterized in that: A guide groove (701) is provided between the conveying roller (7) and the winding platform (1), and the guide groove (701) is perpendicular to the lifting drum (3) and avoids the center of the lifting drum (3). Swinging components (5) are symmetrically provided on both sides of the guide groove (701), and the two swinging components (5) are arranged in a V shape, and the two swinging components (5) are periodically opened and closed to adjust the end of the strip steel (6) into the guide groove (701); the track (4) includes a concentric part with the lifting drum (3) and surrounding the outer side thereof. The encircling section (404) and the straight section (403) located directly above the guide groove (701), and when the mechanical claw (402) clamps the end of the steel strip (6) and moves to the front end of the straight section (403), the end of the steel strip (6) avoids the center of the lifting drum (3) and contacts its side wall, and when the self-propelled trolley (401) runs around the encircling section (404), it is tightly attached to the side wall of the lifting drum (3) and deforms, and then encounters the slot (304), and the end of the steel strip (6) is automatically stuck in the slot (304).

2. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: An outwardly expanding portion (702) is provided at one end of the guide groove (701) away from the lifting drum (3).

3. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: The end of the surrounding section (404) is connected to the end of the straight section (403) via a turning section (405).

4. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: The lifting drum (3) comprises an inner drum (302) and an outer drum (301) surrounding the inner drum (302), and an annular gap (303) for clamping the end of the strip steel (6) is formed between the inner and outer drums, and the at least one clamping groove (304) is arranged on the outer drum (301) along the axial direction of the outer drum (301) and passes through the top and bottom of the outer drum (301).

5. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: The swing assembly (5) comprises a column (503) and a swing member (502) capable of turning around the column (503), and the swing member (502) is driven by the telescopic cylinder (501) to swing around the column (503).

6. The vertical automatic coiling device for hot-rolled steel strip according to claim 5, characterized in that: The swing member (502) is a rectangular plate-shaped member, or a grid structure composed of a plurality of horizontally arranged flat plates, and two intersecting fastening strips (504) are arranged between two adjacent flat plates; one end of the swing member (502) is hinged to the column (503), and the other end extends to the conveying roller (7).

7. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: A cylindrical cavity is arranged at the center of the winding platform (1), and the lifting drum (3) is arranged in the cylindrical cavity. The lifting drum (3) is driven by the lifting structure (201) at its bottom to extend to the surface of the winding platform (1), or to be completely retracted into the cylindrical cavity. After the lifting drum (3) is extended to the extreme position, it can be connected to the winding platform (1) and rotate synchronously with the winding platform (1).

8. The vertical automatic coiling device for hot-rolled steel strip according to claim 7, characterized in that: The lifting drum (3) is fixedly connected to the lifting structure (201) via a rotating mechanism (2); the rotating mechanism (2) comprises a fixed part (203) and a rotating part (202) which are relatively rotatable; the bottom surface of the fixed part (203) is fixedly connected to the lifting structure (201); the rotating part (202) is rotatably arranged above the fixed part (203) via a central rotating shaft (204).

9. The vertical automatic coiling device for hot-rolled steel strip according to claim 8, characterized in that: A plurality of locking mechanisms are arranged around the side wall of the rotary mechanism (2), each locking mechanism comprising a clamping strip (205) slidably arranged in a countersunk hole on the side wall of the rotating part (202), one end of the clamping strip (205) being fixed to a compression spring (206) arranged in the countersunk hole, and the other end being an inclined slope (207), a locking hole (102) located on the lifting track of the clamping strip (205) being arranged on the inner wall of the cylindrical cavity of the winding platform (1), and during the rising process of the clamping strip (205), the clamping strip (205) can be inserted into the locking hole (102) under the push of the compression spring (206) to achieve locking of the rotating part (202) and the winding platform (1), or, during the descending process of the clamping strip (205), the inclined slope (207) of the clamping strip (205) can slide out of the locking hole (102) to achieve separation of the rotating part (202) and the winding platform (1).

10. The vertical automatic coiling device for hot-rolled steel strip according to claim 1, characterized in that: The edge of the winding platform (1) is provided with a gear ring, and the gear ring is meshed with the gear ring on the edge of a driving wheel (101) provided on one side of the winding platform (1).

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