Take-up auxiliary device, take-up system and operation method

Abstract

The present invention relates to a winding auxiliary device, a winding system, and an operating method, wherein the winding auxiliary device includes a telescopic swinging guide assembly, an upper pressure roller assembly, and a lower pressure roller assembly. The telescopic swinging guide assembly includes a swinging guide, a telescopic guide, and a shovel head arranged in sequence from top to bottom, and the telescopic guide can be linearly slidably arranged on the swinging guide. The swinging guide can swing around a first pivot, and the axial direction of the first pivot is perpendicular to the sliding direction of the telescopic guide. The upper pressure roller assembly includes an upper swing arm and an upper pressure roller and a guide arranged at the end of the upper swing arm. The upper swing arm can swing around a second pivot, and the guide has a guide inclined plate. The lower pressure roller assembly includes a lower swing arm and a lower pressure roller arranged at the end of the lower swing arm. The lower swing arm can swing around a third pivot. The present invention is aimed at a single-stand cold rolling mill unit, which meets the existing compact layout without adding an additional rewinding unit, and can achieve the functions of both first-pass auxiliary winding and secondary rolling unwinding.

Description

Technical Field

[0001] The present invention relates to the technical field of cold rolling production lines, and in particular to a coiling auxiliary device, a coiling system and an operating method. Background Art

[0002] Existing single-stand cold rolling mills typically consist of a spooler, a three-roll clamping and straightening device, a tensioning roll, an entry bending roll, a first coiler, an entry drive steering roll, a rolling mill, a shearing machine, an exit bending roll, an exit drive steering roll, and a second coiler. The spooler and first coiler are located on one side of the rolling mill, while the second coiler is located on the other. The first rolling pass begins with the coil being uncoiled by the spooler, straightened and conveyed by the three-roll clamping and straightening device. After passing through the rolling mill, it enters the second coiler, where it is gripped and rotated by the coil jaws of the second coiler. This forms a tension rolling system between the spooler, the rolling mill, and the second coiler. The first rolling pass is completed when the tail of the strip on the spooler is flung to the entry side of the rolling mill. The rolling direction is then reversed, and the tension rolling system consisting of the second coiler, the rolling mill, and the first coiler is completed. Finally, multiple reciprocating rolling passes are performed within the tension rolling system consisting of the two coilers and the rolling mill to produce a qualified product. Depending on the process requirements, the final rolled product is unloaded from the first coiler or the second coiler, completing one rolling process.

[0003] In the existing technology, the raw materials generally come from hot-rolled steel coils with a core hole diameter of φ610mm. After one rolling and coiling process, the core hole diameter becomes φ508mm. Due to the increase in the number of rolling passes, the steel plate undergoes cold work hardening, making it difficult to further thin the steel plate. If further thinning is required, the steel coil needs to be removed from the machine and subjected to intermediate annealing before being put back on the machine for rolling. However, due to the different core hole diameters of the steel coils, the reel diameter of the standard specification coiler is generally a true round diameter of φ508mm. After the intermediate annealing process, the steel coils can no longer be loaded from the φ610mm reel of the unwinder of this unit for a second time. A rewinding unit needs to be added to accommodate the adjustment of the core hole diameter, which occupies a large space, is complex to operate, and is costly.

[0004] Therefore, the inventors, relying on their many years of experience and practice in related industries, have proposed a winding auxiliary device, a winding system and an operating method to overcome the defects of the prior art. Summary of the Invention

[0005] The object of the present invention is to provide a winding auxiliary device, a winding system and an operating method, which can realize the functions of the first-pass auxiliary coiling and the secondary rolling uncoiling without adding an additional rewinding unit while meeting the existing compact layout for a single-stand cold rolling mill.

[0006] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] The present invention provides a winding auxiliary device, which is applied to a winding machine. The winding auxiliary device includes:

[0008] The telescopic swing guide assembly includes a swing guide, a telescopic guide, and a shovel head arranged in sequence from top to bottom, wherein the telescopic guide is linearly slidably arranged on the swing guide; the swing guide can swing around a first pivot, wherein the axial direction of the first pivot is perpendicular to the sliding direction of the telescopic guide;

[0009] An upper pressure roller assembly includes an upper swing arm and an upper pressure roller and a guide provided at the end of the upper swing arm, wherein the upper swing arm can swing around a second pivot, and the guide has a guide inclined plate;

[0010] a lower pressure roller assembly comprising a lower swing arm and a lower pressure roller provided at an end of the lower swing arm, wherein the lower swing arm is capable of swinging about a third pivot;

[0011] Among them, the axial directions of the first pivot, the second pivot and the third pivot are all parallel to the axial direction of the winder, the telescopic swing guide assembly is used to be installed on the first side of the winder, and the swing guide can drive the shovel head to swing from the first side of the winder to the top of the winder; the upper pressure roller assembly and the lower pressure roller assembly are both used to be installed on the second side of the winder, the upper swing arm can swing in the area above the horizontal plane where the axis of the winder is located, and the upper swing arm can drive the upper pressure roller to swing toward or away from the winder, and the guide inclined plate can form a closing area with a size gradually shrinking downward between the upper pressure roller and the shovel head when the upper pressure roller is pressed against the reel of the winder; the lower swing arm can swing in the area below the horizontal plane where the axis of the winder is located, and the lower swing arm can drive the lower pressure roller to swing toward or away from the winder.

[0012] In a preferred embodiment of the present invention, the upper pressing roller and the lower pressing roller are both rubber-coated pressing rollers, and the guide inclined plate can extend to the upper pressing roller and cover a portion of the upper pressing roller.

[0013] In a preferred embodiment of the present invention, when the upper pressure roller is pressed against the reel of the reel, the guide inclined plate is located at a position inclined from the vertical surface toward a direction close to the shovel head.

[0014] In a preferred embodiment of the present invention, the thickness of the lower end of the shovel head gradually decreases from its upper end to the lower end, the hardness of the shovel head is greater than the hardness of the telescopic guide plate, and the shovel head is connected to the telescopic guide plate through a fastener.

[0015] In a preferred embodiment of the present invention, the telescopic guide plate is connected to the swing guide plate through a linear sliding pair, and the front surfaces of the swing guide plate, the telescopic guide plate and the shovel head are all located in the same plane.

[0016] In a preferred embodiment of the present invention, the telescopic swing guide assembly also includes a swing drive and a telescopic drive, the swing drive is used to drive the swing guide to swing, and the telescopic drive is used to drive the telescopic guide to slide relative to the swing guide; the upper pressure roller assembly also includes a first drive for driving the upper swing arm to swing; the lower pressure roller assembly also includes a second drive for driving the lower swing arm to swing.

[0017] In a preferred embodiment of the present invention, the winding auxiliary equipment also includes a first frame; the swinging drive component includes a swinging hydraulic cylinder, the upper end of the swinging guide plate is hinged to the first frame through a first pivot, the first end of the swinging hydraulic cylinder is hinged to the swinging guide plate, and the second end of the swinging hydraulic cylinder is hinged to the first frame; the telescopic drive component includes a telescopic hydraulic cylinder, the first end of the telescopic hydraulic cylinder is hinged to the swinging guide plate, and the second end of the telescopic hydraulic cylinder is hinged to the telescopic guide plate.

[0018] In a preferred embodiment of the present invention, the winding auxiliary equipment also includes a second frame; the first driving member includes a first hydraulic cylinder, the upper swing arm is hinged to the second frame through a second pivot, the first end of the first hydraulic cylinder is hinged to the upper swing arm, and the second end of the first hydraulic cylinder is hinged to the second frame; the second driving member includes a second hydraulic cylinder, the lower swing arm is hinged to the second frame through a third pivot, the first end of the second hydraulic cylinder is hinged to the lower swing arm, and the second end of the second hydraulic cylinder is hinged to the second frame.

[0019] In a preferred embodiment of the present invention, the first pivot and the second pivot are both located above the horizontal plane where the axis of the winder is located, and the third pivot is located below the horizontal plane where the axis of the winder is located; the upper end of the swing guide plate is fixed with an arc plate, and the end of the arc plate is hinged to the first frame through the first pivot.

[0020] In a preferred embodiment of the present invention, a linear displacement sensor is provided on the swing hydraulic cylinder.

[0021] The present invention also provides a coiling system, comprising a coiler and the above-mentioned coiling auxiliary equipment.

[0022] The present invention also provides an operating method of a coiling system, which is operated by using the above-mentioned coiling system;

[0023] The operation method of the coiling system for auxiliary coiling during the first rolling pass includes the following steps:

[0024] Swing the shovel head to the top of the reel of the coiler, and slide the telescopic guide plate out until the end of the shovel head points to and is close to the jaws on the reel;

[0025] The upper swing arm is swung until the upper pressure roller is pressed against the reel, and a closing area with a size gradually shrinking downward is formed between the guide inclined plate and the shovel head;

[0026] After the raw steel coil is unwound by the uncoiler and passes through the rolling mill, exit bending roller and exit transmission turning roller, the strip head of the raw steel coil is guided to the jaws by the swing guide, telescopic guide and shovel head in the closing area;

[0027] The operation method of the coiling system during secondary rolling and uncoiling includes the following steps:

[0028] Swing the shovel head to the top of the reel of the coiler, with the telescopic guide in the retracted position and the upper and lower pressure rollers away from the reel;

[0029] The steel coil to be rolled for the second time is placed on the reel, and then the upper pressing roller and the lower pressing roller are pressed against the steel coil to be rolled for the second time;

[0030] By adjusting the swing angle of the swing guide, adjusting the sliding extension distance of the telescopic guide and cooperating with the rotating reel, the strip head of the steel coil to be rolled for the second time can be picked up by the shovel head and delivered to the telescopic guide, the swing guide and the exit transmission steering roller in sequence.

[0031] In a preferred embodiment of the present invention, the coiling system operates as follows to swing the swing guide back to the initial position during the secondary rolling process after the secondary rolling uncoiling is completed:

[0032] After the secondary rolling and uncoiling is completed, an inclined steel strip is formed between the exit drive steering roller and the coiler, and the shovel head is located within the angle formed by the steel strip and the remaining steel coil;

[0033] When the distance between the tip of the shovel head and the steel strip reaches a first set value, the swing angle of the swing guide is adjusted so that the distance between the tip of the shovel head and the surface of the remaining steel coil reaches a second set value; the operation is repeated until the tip of the shovel head swings to be collinear with the center of the first pivot and the center line of the coiler, and then the swing angle of the swing guide is adjusted and the swing guide is swung back to the initial position at one time;

[0034] Among them, the distance between the tip of the shovel head and the steel strip refers to the vertical distance between the tip of the shovel head and the lower surface of the steel strip, and the distance between the tip of the shovel head and the surface of the remaining steel coil refers to the distance between the intersection of the motion trajectory line of the tip of the shovel head and the surface of the remaining steel coil and the line connecting the tip of the shovel head.

[0035] As described above, during the first rolling, the present invention can guide the lead in by utilizing the cooperation of the telescopic swinging guide assembly, the upper pressure roller and the guide inclined plate, thereby assisting in coiling; when the steel coil needs to be rolled for the second time, the steel coil can be directly uncoiled by the coiler of this unit by utilizing the cooperation of the telescopic swinging guide assembly, the upper pressure roller and the lower pressure roller, without the need for adding an additional rewinding unit; when the coiling is completed and the coiler is unloaded, the cooperation of the upper pressure roller and the lower pressure roller can facilitate smooth unloading of the coil. The entire equipment occupies a small space, has a compact structure, requires low investment, and is easy to inspect and maintain through the cooperation of the telescopic swing guide plate assembly, the upper pressure roller assembly, and the lower pressure roller assembly. It can ensure the compact structure of the existing single-stand cold rolling mill and not add a new rewinding unit. It can take into account the auxiliary coiling of the first rolling of the existing single-stand cold rolling mill and the secondary thinning of the finished coils after annealing. It solves the problem that the existing single-stand cold rolling mill is limited by the coil core diameter and cannot uncoil and roll the steel coils after annealing for the second time in this unit. At the same time, in the compact layout of the single-stand cold rolling mill, without adding a new rewinding equipment, it takes into account the auxiliary threading function of the first rolling and the auxiliary unloading function when unloading the coils. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0037] Figure 1 : A structural schematic diagram of a single-stand cold rolling mill with coiling auxiliary equipment provided by the present invention during the first rolling pass.

[0038] Figure 2 :for Figure 1 A local enlarged view of point M in the middle.

[0039] Figure 3 : A structural schematic diagram of a single-stand cold rolling mill with coiling auxiliary equipment provided by the present invention during secondary rolling and coiling.

[0040] Figure 4 :for Figure 3 A local enlarged view of point N in the middle.

[0041] Figure 5 : A schematic diagram of controlling the swing guide plate to swing back to the initial position during the secondary rolling process provided by the present invention.

[0042] Figure 6 :The telescopic swing guide plate assembly provided by the present invention cooperates with the second coiler and the outlet transmission steering roller Figure 1 .

[0043] Figure 7 :The telescopic swing guide plate assembly provided by the present invention cooperates with the second coiler and the outlet transmission steering roller Figure 2 .

[0044] Description of Figure Numbers:

[0045] 100. Coil auxiliary equipment;

[0046] 1. Telescopic swing guide assembly; 11. Swing guide; 111. Slot; 112. Curved plate; 12. Telescopic guide; 121. Insert plate; 13. Shovel head; 14. First pivot; 15. Swing hydraulic cylinder; 16. Telescopic hydraulic cylinder; 17. Upper swing hinge support; 18. Lower swing hinge support;

[0047] 2. Upper pressure roller assembly; 21. Upper swing arm; 211. First plate; 212. Second plate; 22. Upper pressure roller; 23. Guide; 231. Guide inclined plate; 24. Second pivot; 25. First hydraulic cylinder;

[0048] 3. Lower pressure roller assembly; 31. Lower swing arm; 32. Lower pressure roller; 33. Third pivot; 34. Second hydraulic cylinder;

[0049] 200, uncoiler; 201, three-roller clamping and straightening device; 202, measuring roller;

[0050] 300, entrance bending roller;

[0051] 400, first coiler;

[0052] 500, entrance transmission steering roller;

[0053] 600, rolling mill; 601, shearing machine;

[0054] 700, export bending roller;

[0055] 800, export transmission steering roller;

[0056] 900. Second coiler. DETAILED DESCRIPTION

[0057] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0058] like Figures 1 to 7 As shown, this embodiment provides a winding auxiliary device 100, which is applied to a winding machine. The winding auxiliary device 100 includes:

[0059] The telescopic swing guide assembly 1 includes a swing guide 11, a telescopic guide 12, and a shovel head 13, which are arranged in sequence from top to bottom. The telescopic guide 12 is arranged on the swing guide 11 so as to be linearly slidable. The swing guide 11 can swing around a first pivot 14, and the axial direction of the first pivot 14 is perpendicular to the sliding direction of the telescopic guide 12.

[0060] The upper pressure roller assembly 2 includes an upper swing arm 21 and an upper pressure roller 22 and a guide 23 provided at the end of the upper swing arm 21. The upper swing arm 21 can swing around a second pivot 24. The guide 23 has a guide inclined plate 231.

[0061] The lower pressure roller assembly 3 includes a lower swing arm 31 and a lower pressure roller 32 provided at the end of the lower swing arm 31. The lower swing arm 31 can swing around a third pivot 33.

[0062] Among them, the axes of the first pivot 14, the second pivot 24 and the third pivot 33 are all parallel to the axis of the winder, the telescopic swing guide assembly 1 is used to be installed on the first side of the winder, and the swing guide 11 can drive the shovel head 13 to swing from the first side of the winder to the top of the winder; the upper pressure roller assembly 2 and the lower pressure roller assembly 3 are both used to be installed on the second side of the winder, the upper swing arm 21 can swing in the area above the horizontal plane where the axis of the winder is located, and the upper swing arm 21 can drive the upper pressure roller 22 to swing toward or away from the winder, and the guide inclined plate 231 can form a closing area with a size gradually shrinking downward between the upper pressure roller 22 and the shovel head 13 when the upper pressure roller 22 is pressed against the reel of the winder; the lower swing arm 31 can swing in the area below the horizontal plane where the axis of the winder is located, and the lower swing arm 31 can drive the lower pressure roller 32 to swing toward or away from the winder.

[0063] The entire coiling auxiliary equipment 100 is used to be installed near the coiler when in use. Since there are many equipment near the uncoiler 200 and the coiler near the uncoiler 200 (i.e., the first coiler 400) in the single-stand cold rolling mill group, it is not convenient to perform secondary rolling and coiling. Therefore, the coiling auxiliary equipment 100 in this embodiment is specifically installed near the coiler far away from the coiler 200 (i.e., the second coiler 900), and the telescopic swing guide plate assembly 1 is installed on the first side of the second coiler 900 (i.e., the side close to the rolling mill 600), and the upper pressure roller assembly 2 and the lower pressure roller assembly 3 are installed on the second side of the second coiler 900 (i.e., the side away from the rolling mill 600), and the upper pressure roller assembly 2 is located below the lower pressure roller assembly 3.

[0064] In the initial position, the shovel head 13 is located on the first side of the second winder 900, the angle between the swing guide plate 11 and the vertical plane is small and close to the vertical position, the telescopic guide plate 12 is in the retracted position, and the upper pressure roller 22 and the lower pressure roller 32 are both located away from the reel, that is, the upper pressure roller 22 is in the high open position, and the lower pressure roller 32 is in the low open position.

[0065] During the first rolling pass, the swing guide 11 is first swung upward from its initial position, causing the shovel head 13 to swing over the mandrel. The swing guide 11 is in its first swing position. The telescopic guide 12 is then slid outward, directing the shovel head 13 toward the mandrel's jaws, leaving a small gap between the end of the shovel head 13 and the outer circumference of the mandrel. The upper swing arm 21 is then swung downward from its initial position, pressing the upper pressure roller 22 against the outer circumference of the mandrel. The lower pressure roller 32 remains in its initial position. At this point, a tapering area is formed between the guide inclined plate 231 and the shovel head 13, assisting the strip's lead in entering the mandrel's jaws. Once the strip's lead is clamped in the jaws, the telescopic guide 12 is slid back to its initial position, the swing guide 11 is returned to its initial position, and the upper swing arm 21 is returned to its initial position. Reverse rolling and multiple reciprocating passes can then be performed to complete a single rolling pass.

[0066] If further thinning is required, the coil must be retracted from the coil line and placed on the machine for a second rolling process. To unwind the coil for the second rolling process, the swing guide 11 is first swung upward from its initial position, causing the shovel head 13 to swing above the reel. The swing guide 11 is in its second swing position. The telescopic guide 12 remains in its initial retracted position, and the upper and lower pressure rollers 22 and 32 also remain in their initial positions. The coil is then loaded from the coil transport vehicle onto the reel of the second coiler 900. The upper swing arm 21 is then swung downward from its initial position, causing the upper pressure roller 22 to press against the coil. The lower swing arm 31 is then swung upward from its initial position, causing the lower pressure roller 32 to press against the coil. Next, the position of the shovel head 13 is adjusted by manually adjusting the downward swing angle of the swing guide 11 and the outward sliding distance of the telescopic guide 12. The shovel head 13 is then adjusted to fit under the strip head of the steel coil in conjunction with the rotation of the second coiler 900 (the end of the shovel head 13 is very close to the surface of the steel coil but not in contact with it), allowing the shovel head 13 to support the strip head. The strip head is then delivered to the rolling mill 600 through the rotation of the reel of the second coiler 900 and the coordination of other auxiliary equipment (such as the exit drive steering roller 800 and the exit bending roller 700). Once tension is established, the upper swing arm 21 and the lower swing arm 31 are both swung to their initial positions, and the telescopic guide 12 is slid back to its initial position. The strip head is then delivered to the first coiler 400. Tension is established between the first coiler 400, the second coiler 900, and the rolling mill 600, allowing repeated strip tension rolling, i.e., secondary rolling.

[0067] After the first rolling and the second rolling are completed, if the rolled product is unloaded by the second coiler 900, when the coiling is completed, the tail of the steel coil needs to be sheared by the shearing machine 601. In order to prevent the coil from loosening, the upper pressure roller 22 and the lower pressure roller 32 need to be pressed against the finished coil at the same time; when the lifting box of the coil transport vehicle moves to the bottom of the finished coil and the supporting wheel of the lifting box is pressed against the finished coil, the upper pressure roller 22 and the lower pressure roller 32 can be swung back to their initial positions.

[0068] Therefore, the winding auxiliary equipment 100 in this embodiment can guide the lead in during the first rolling by utilizing the cooperation of the telescopic swinging guide plate assembly 1, the upper pressure roller 22 and the guide inclined plate 231, thereby assisting in winding; when the steel coil needs to be rolled for the second time, the steel coil can be directly unwound by the coiler of this unit by utilizing the cooperation of the telescopic swinging guide plate assembly 1, the upper pressure roller 22 and the lower pressure roller 32, without the need for adding an additional rewinding unit; when the coiling is completed and the coiler is unloaded, the cooperation of the upper pressure roller 22 and the lower pressure roller 32 can facilitate smooth unloading of the coil. The entire equipment occupies a small space, has a compact structure, requires low investment, and is easy to inspect and maintain through the cooperation of the telescopic swing guide plate assembly 1, the upper pressure roller assembly 2 and the lower pressure roller assembly 3. It can ensure the compact structure of the existing single-stand cold rolling mill and not add a new rewinding unit. It takes into account the auxiliary coiling of the first rolling of the existing single-stand cold rolling mill and the secondary thinning of the finished coil after annealing. It solves the problem that the existing single-stand cold rolling mill is limited by the coil core diameter and cannot uncoil and roll the steel coil after annealing for the second time in this unit. At the same time, in the compact layout of the single-stand cold rolling mill, without adding a new rewinding equipment, it takes into account the auxiliary threading function of the first rolling and the auxiliary unloading function when unloading the coil.

[0069] In a specific implementation, during the secondary rolling and uncoiling process of the steel coil, when the steel coil is taken down from the coil transport vehicle and placed on the reel of the second coiler 900, the strip head of the steel coil may be at any position in the circumferential direction; therefore, it is necessary to subsequently rotate the reel of the second coiler 900 to rotate the strip head to an upper position and toward the rolling mill 600; according to Figure 4 In the rolling direction shown in the figure, the reel needs to be rotated clockwise. During this process, the upper pressure roller 22 and the lower pressure roller 32 need to be used to tightly press the steel coil to prevent it from loosening. At the same time, when the strip head is supported by the shovel head 13 and continues to climb upward along the telescopic guide plate 12 and the swing guide plate 11, since the steel coil is thin and soft after intermediate annealing, the upper pressure roller 22 and the lower pressure roller 32 need to be used to tightly press the steel coil. On the one hand, it can prevent loosening, and on the other hand, it can ensure that there is a large friction between each pressure roller and the steel coil to improve the delivery capacity of the strip head, and then the strip head can be smoothly pushed to climb upward, which is more conducive to smooth unwinding.

[0070] In order to ensure that the upper pressing roller 22 and the lower pressing roller 32 can tightly press the steel coil and form a large friction force between each pressing roller and the steel coil, the upper pressing roller 22 and the lower pressing roller 32 are preferably rubber-coated pressing rollers.

[0071] When the upper pressure roller 22 is a rubber-coated pressure roller, since the upper pressure roller 22 in this embodiment also plays the role of auxiliary coiling during the first rolling, the strip head of the steel coil will eventually be introduced into the jaws on the reel along the above-mentioned closing area. During this process, the strip head may poke the upper pressure roller 22 and damage the upper pressure roller 22. In this embodiment, in order to prevent the strip head from damaging the upper pressure roller 22 during coiling, Figure 2 As shown, the guide inclined plate 231 can extend to the upper pressing roller 22 and cover a portion of the upper pressing roller 22 .

[0072] The upper pressure roller 22 is simply supported and mounted on the first end of the upper swing arm 21, and the lower pressure roller 32 is simply supported and mounted on the first end of the lower swing arm 31. Both the upper pressure roller 22 and the lower pressure roller 32 are idler rollers and can rotate freely about their respective support shafts. The guide 23 primarily guides the tape head and protects the rubberized pressure rollers. It generally utilizes a triangular frame structure with a guide inclined plate 231 to provide greater structural stability and save material. The bottom surface of the triangular frame structure is mounted to the upper side of the end of the upper swing arm 21 (i.e., the side of the end facing away from the reel) via fasteners (e.g., bolts). The guide inclined plate 231 is tilted upward from the first end of the upper swing arm 21 toward its second end. This allows the aforementioned closing area to be formed between the guide inclined plate 231 and the shovel head 13 when the upper pressure roller 22 is pressed against the reel of the second reel 900. Furthermore, the guide inclined plate 231 extends outward from the end of the upper pressure roller 22 and covers a portion of the upper pressure roller 22, providing some protection for the upper pressure roller 22.

[0073] Preferably, when the upper pressure roller 22 is pressed against the reel of the second reel 900, the guide inclined plate 231 is located at a position inclined from the vertical plane toward the direction close to the shovel head 13. That is, at this time, the plate surface of the guide inclined plate 231 is inclined toward the side close to the shovel head 13 relative to the vertical plane where its lower end is located (according to Figure 2 thereby ensuring that once the guide inclined plate 231 contacts the belt head, it can better play the role of applying pressure to the belt head.

[0074] In actual application, the thickness of the lower end of the shovel head 13 gradually decreases from the upper end to the lower end. The hardness of the shovel head 13 is greater than the hardness of the telescopic guide plate 12. The shovel head 13 is connected to the telescopic guide plate 12 through a fastener.

[0075] To ensure the wear resistance of the shovel head 13, it needs to be quenched and has a high hardness. Therefore, the shovel head 13 and the telescopic guide plate 12 should be manufactured separately, and then the upper end of the shovel head 13 is connected to the lower end of the telescopic guide plate 12 by fasteners (such as bolts). Generally, the shovel head 13 adopts a rectangular plate structure. The front of the rectangular plate structure is coplanar with the front of the telescopic guide plate 12. The lower end of the back of the rectangular plate has a beveled surface, so that the thickness of the lower end of the shovel head 13 gradually decreases downward. On the one hand, the lower end of the shovel head 13 forms a sharp edge, which is more conducive to the shovel supporting the lead during the secondary rolling uncoiling; on the other hand, the back of the lower end of the shovel head 13 has a beveled surface, which can avoid the outer peripheral surface of the steel coil itself during the secondary rolling to avoid mutual interference.

[0076] Since in this embodiment, auxiliary coiling is required on the second coiler 900 during the first rolling pass, and rewinding is required on the second coiler 900 during the second rolling pass, it is necessary to ensure that the strip head can be delivered downward from high to low along the swing guide 11, telescopic guide 12, and shovel head 13 in sequence during the first rolling pass, and to ensure that the strip head can be delivered upward from low to high along the shovel head 13, telescopic guide 12, and swing guide 11 in sequence during the second rolling pass. Therefore, in this embodiment, the telescopic guide 12 is connected to the swing guide 11 via a linear sliding pair, and the front surfaces of the swing guide 11, telescopic guide 12, and shovel head 13 are all located in the same plane to ensure that the strip head can be delivered smoothly when descending or climbing a slope.

[0077] like Figure 6 As shown, the general swing guide plate 11 is a rectangular plate body, and the telescopic guide plate 12 is a rectangular plate body. The lower part of the swing guide plate 11 has a plurality of slots 111 arranged at intervals and extending downward through its bottom end. The upper part of the telescopic guide plate 12 has a plurality of plug-ins 121 arranged at intervals. Each plug-in plate 121 can be slidably inserted into the corresponding slot 111 to ensure that the front faces of the swing guide plate 11 and the telescopic guide plate 12 can be coplanar while sliding relative to each other.

[0078] Furthermore, in order to facilitate the control of the swinging of the swing guide 11, the upper swing arm 21, and the lower swing arm 31, as well as the telescopic sliding of the telescopic guide 12, the telescopic swing guide assembly 1 also includes a swing drive and a telescopic drive. The swing drive is used to drive the swing guide 11 to swing, and the telescopic drive is used to drive the telescopic guide 12 to slide relative to the swing guide 11. The upper pressure roller assembly 2 also includes a first drive for driving the upper swing arm 21 to swing. The lower pressure roller assembly 3 also includes a second drive for driving the lower swing arm 31 to swing. The first drive, the second drive, and the third drive can adopt any drive structure as needed, as long as they can drive the corresponding components to swing or slide.

[0079] For example, in this embodiment, the winding auxiliary device 100 further includes a first frame, a swinging drive component including a swinging hydraulic cylinder 15, the upper end of the swinging guide plate 11 is hinged to the first frame via a first pivot 14, the first end of the swinging hydraulic cylinder 15 is hinged to the swinging guide plate 11, and the second end of the swinging hydraulic cylinder 15 is hinged to the first frame. The telescopic drive component includes a telescopic hydraulic cylinder 16, the first end of the telescopic hydraulic cylinder 16 is hinged to the swinging guide plate 11, and the second end of the telescopic hydraulic cylinder 16 is hinged to the telescopic guide plate 12. The winding auxiliary device 100 further includes a second frame, a first drive component including a first hydraulic cylinder 25, an upper swing arm 21 is hinged to the second frame via a second pivot 24, a first end of the first hydraulic cylinder 25 is hinged to the upper swing arm 21, and the second end of the first hydraulic cylinder 25 is hinged to the second frame. The second driving member includes a second hydraulic cylinder 34, the lower swing arm 31 is hinged to the second frame through a third pivot 33, a first end of the second hydraulic cylinder 34 is hinged to the lower swing arm 31, and a second end of the second hydraulic cylinder 34 is hinged to the second frame.

[0080] During installation, both the first and second frames are floor-standing steel structures, placed on either side of the second coiler 900. Generally, an upper swing hinge support 17 and a lower swing hinge support 18 are fixedly mounted on the first frame (the upper swing hinge support 17 and the lower swing hinge support 18 are both long strip-shaped structures, and their axes are parallel to the direction of the first pivot 14). The upper end of the swing guide plate 11 is hinged to the upper swing hinge support 17 via the first pivot 14, and the second end of the swing hydraulic cylinder 15 is hinged to the lower swing hinge support 18. The swing guide plate 11 can be swung about the first pivot 14 by extending and retracting the swing hydraulic cylinder 15, and the telescopic guide plate 12 can be extended and retracted relative to the swing guide plate 11 by extending and retracting the telescopic hydraulic cylinder 16. The upper swing arm 21 can be swung about the second pivot 24 by extending and retracting the first hydraulic cylinder 25, and the lower swing arm 31 can be swung about the third pivot 33 by extending and retracting the second hydraulic cylinder 34.

[0081] The specific positions of the first pivot 14, the second pivot 24, and the third pivot 33, as well as the specific installation positions of the swing hydraulic cylinder 15, the first hydraulic cylinder 25, and the second hydraulic cylinder 34 should generally be considered to have a more compact structural layout and to facilitate the realization of their respective functions; the shape of the upper swing arm 21 should be considered to facilitate the upper pressure roller 22 to press against the reel or steel coil, and to avoid the largest steel coil, and to have a more compact structural layout and not interfere with the spatial arrangement of the lower pressure roller assembly 3 in the second frame; the shape of the lower swing arm 31 should be considered to facilitate the lower pressure roller 32 to press against the steel coil, and to avoid the largest steel coil, and to have a more compact structural layout and not interfere with the spatial arrangement of the upper pressure roller assembly 2 in the second frame.

[0082] In addition, the design of the lower swing arm 31 also needs to ensure that the contact point where the lower pressure roller 32 presses against the steel coil and the angle between the line connecting the center of the reel of the second coiler 900 and the plumb line should be small, and the position of the contact point should be as close as possible to directly below the steel coil; the position of the contact point should be considered to avoid interference with the column of the coil transport vehicle during unloading, and as close as possible to the contact point between the supporting wheel of the lifting box of the coil transport vehicle and the steel coil, so that when the lower pressure roller 32 is separated from the steel coil during unloading, the tail of the belt is as close as possible to the supporting wheel of the coil transport vehicle, which is more conducive to unloading.

[0083] In this embodiment, to make the structure more compact and easier to install, the first pivot 14, the upper swing hinge support 17, and the second pivot 24 are all located above the horizontal plane where the axis of the coiler (specifically, the second coiler 900) is located, and the third pivot 33 and the lower swing hinge support 18 are located below the horizontal plane where the axis of the coiler is located. The upper swing arm 21 is composed of an L-shaped frame consisting of a first plate 211 and a second plate 212 fixed to each other. The length of the first plate 211 is greater than the length of the second plate 212. The two ends of the first plate 211 have a bent portion that bends toward the side closer to the second coiler 900 to avoid the largest steel coil; the upper pressure roller 22 and the guide 23 are both located at the end of the first plate 211 (i.e., the first end of the upper swing arm 21). The connection between the first plate 211 and the second plate 212 is connected to the second pivot 24. The end of the second plate 212 (i.e., the second end of the upper swing arm 21) is hinged to the first end of the first hydraulic cylinder 25. The lower swing arm 31 is a long strip-shaped plate, the first end of which is bent toward the side close to the second coiler 900 to avoid the largest steel coil; the second end is connected to the third pivot 33, and the first end of the second hydraulic cylinder 34 is hinged to the middle of the lower swing arm 31. The cylinder body of the first hydraulic cylinder 25 is tilted, and its first end is located above its second end and tilted toward the side close to the second coiler 900. The cylinder body of the second hydraulic cylinder 34 is horizontally arranged. The arrangement of the first hydraulic cylinder 25 and the second hydraulic cylinder 34 allows the positions of the first hydraulic cylinder 25 and the second hydraulic cylinder 34 to change little within the swing range of the upper swing arm 21 and the lower swing arm 31, avoiding entering the working area of the steel coil.

[0084] In order to ensure that the swing guide plate 11 can avoid the outlet transmission turning roller 800 when swinging upward, as shown in FIG. Figure 2 、 Figure 4 and Figure 6As shown, a curved plate 112 is fixed to the upper end of the swing guide plate 11. The end of the curved plate 112 is hinged to the first frame via a first pivot 14 (the curved plate 112 is hinged to the vertical plate on the upper swing hinge support 17 via the first pivot 14). The curvature of the curved plate 112 should match the diameter of the outlet transmission steering roller 800 so that the curved plate 112 can be installed below the outlet transmission steering roller 800 with a certain gap. The swing guide plate 11 is close to the outlet transmission steering roller 800, ensuring that the swing guide plate 11 can smoothly deliver the tape head when it swings upward to the first swing position or the second swing position.

[0085] Of course, other arrangements may be used for the specific positions of the pivots, the shapes of the swing arms, and the directions and positions of the hydraulic cylinders according to actual needs. This embodiment is merely an example.

[0086] It should be noted that, since the section between the rolling mill 600 and the second coiler 900 in the single-stand cold rolling mill becomes a tension-free section at the end of rolling, the process requires that the length of the tension-free section be short, that is, the exit drive steering roller 800 is currently required to be very close to the second coiler 900. Without changing the close layout of the exit drive steering roller 800 and the second coiler 900 in the existing single-stand cold rolling mill, in this embodiment, it is also necessary to arrange the telescopic swing guide assembly 1 on the first side of the second coiler 900, that is, in the small space between the exit drive steering roller 800 and the second coiler 900, and to swing the swing guide 11 to the second swing position during the secondary rolling uncoiling. Since the front surfaces of the swinging guide plate 11 and the telescopic guide plate 12 need to be coplanar in this embodiment, the two can currently only be achieved by interlocking the slots 111 and the inserts 121. In order to ensure the structural strength of the swinging guide plate 11 and the telescopic guide plate 12, the upper portion of the swinging guide plate 11 and the lower portion of the telescopic guide plate 12 are both solid plates. This solid plate portion occupies a certain width, which limits the overall retracted length of the telescopic guide plate 12 when it is retracted to its shortest position. At the same time, the cylinder body of the telescopic hydraulic cylinder 16 itself also has a certain length, which also limits the overall retracted length. Moreover, the current reel diameter of the second coiler 900 is 508 mm, and the diameter of the steel coil during the secondary rolling process is approximately 2 m, which is larger than the reel diameter.

[0087] While maintaining the current distance between the export drive steering roller 800 and the second coiler 900 unchanged (keeping this distance unchanged is also more conducive to the upward climbing delivery of the lead during the secondary rolling uncoiling), due to the length of the hydraulic cylinder itself, the requirement that the front faces of the swing guide 11 and the telescopic guide 12 be coplanar, the structural strength requirement of the swing guide 11 and the telescopic guide 12, and the swing guide 11 must swing to the second swing position during the secondary rolling uncoiling; under these conditions, when the secondary rolling uncoiling is carried out, the swing guide 11 is in the second swing position and when the telescopic guide 12 slides back to the initial position, the swing path of the shovel head 13 will still interfere with the steel coil. Therefore, after the tension is established, the swing guide 11 cannot be swung to the initial position.

[0088] In this way, when the secondary rolling is carried out after the tension is established, the swing guide 11 is initially in the second swing position, and the swing guide 11, the telescopic guide 12 and the shovel head 13 are located in the angle space formed by the steel strip and the remaining steel coil; as the rolling process proceeds, the coil diameter of the remaining steel coil gradually decreases, the angle between the inclined steel strip and the vertical plane will gradually become smaller, and the end of the plate strip and the shovel head 13 gradually approach each other. In order to avoid interference between the shovel head 13 and the plate strip, the swing angle of the swing guide 11 can be adjusted according to the change in coil diameter. When the swing guide 11 swings downward until the shovel head 13 no longer interferes with the remaining steel coil to be unwound, the swing guide 11 is swung back to the initial position at one time to make room for the next stage of rolling and the final unloading of the coil. Generally, a linear displacement sensor is provided on the swing hydraulic cylinder 15 to detect the displacement of the piston of the swing hydraulic cylinder 15 so as to control the swing angle of the swing guide 11.

[0089] Furthermore, this embodiment also provides a winding system, comprising a winding machine and the above-mentioned winding auxiliary device 100. The winding system has the beneficial effects of the above-mentioned winding auxiliary device 100.

[0090] Furthermore, this embodiment also provides an operating method of a take-up system, which is operated using the above-mentioned take-up system;

[0091] The operation method of the coiling system for auxiliary coiling during the first rolling pass includes the following steps:

[0092] Swing the shovel head 13 to the top of the reel of the coiler, and slide the telescopic guide plate 12 out until the end of the shovel head 13 points to and is close to the jaws on the reel;

[0093] The upper swing arm 21 is swung until the upper pressure roller 22 is pressed against the reel. At this time, a closing area with a size gradually shrinking downward is formed between the guide inclined plate 231 and the shovel head 13.

[0094] After the raw steel coil is uncoiled by the uncoiler 200 and passes through the rolling mill 600, the exit bending roller 700 and the exit transmission steering roller 800, the lead of the raw steel coil is guided to the jaws by the closing area along the swing guide 11, the telescopic guide 12 and the shovel head 13.

[0095] The operation method of the coiling system during secondary rolling and uncoiling includes the following steps:

[0096] The shovel head 13 is swung to the top of the reel of the reel, the telescopic guide plate 12 is in the retracted position, and the upper pressure roller 22 and the lower pressure roller 32 are both in the position away from the reel;

[0097] The steel coil to be rolled for the second time is placed on the reel, and then the upper pressing roller 22 and the lower pressing roller 32 are pressed against the steel coil to be rolled for the second time;

[0098] By adjusting the swing angle of the swing guide 11, adjusting the sliding extension distance of the telescopic guide 12 and cooperating with the rotating reel, the head of the steel coil to be rolled for the second time can be picked up by the shovel head 13 and delivered in sequence to the telescopic guide 12, the swing guide 11 and the exit drive steering roller 800.

[0099] In this way, the entire coiling system, while meeting the requirements of the compact structure of the existing single-stand cold rolling mill and the need for no new rewinding equipment, solves the needs of the first-pass auxiliary coiling of the existing single-stand cold rolling mill and the secondary thinning of the finished coils after annealing through the cooperation of the coiling auxiliary equipment 100, and is easy to operate.

[0100] Furthermore, due to the current requirement for a compact structure of a single-stand cold rolling mill and the implementation of the first-pass auxiliary coiling and secondary rolling coiling functions at the second coiler 900 in this embodiment, after the secondary rolling uncoiling is completed, even if the telescopic guide 12 is retracted to the shortest, the shovel head 13 will interfere with the remaining steel coil and cannot be directly swung back to the initial position; but during the secondary rolling process, as the coil diameter continues to decrease, the shovel head 13 will interfere with the steel strip and damage the steel strip. In view of the fact that the secondary rolling coiling is implemented at the second coiler 900 in this embodiment and the current single-stand cold rolling mill structure is ensured to be compact, a new control method is proposed for swinging the swing guide 11 back to the initial position after the secondary rolling coiling.

[0101] The coiling system operates as follows to swing the swing guide plate 11 back to its initial position during the secondary rolling process after the secondary rolling uncoiling is completed:

[0102] After the secondary rolling and uncoiling is completed, an inclined steel strip is formed between the exit drive steering roller 800 and the coiler (specifically, the second coiler 900), and the shovel head 13 is located within the angle formed by the steel strip and the remaining steel coil;

[0103] When the distance between the tip of the shovel head 13 and the steel strip reaches a first set value A, the swing angle of the swing guide plate 11 is adjusted so that the distance between the tip of the shovel head 13 and the surface of the remaining steel coil reaches a second set value B. This cycle is repeated until the tip of the shovel head 13 swings to be collinear with the center of the first pivot 14 and the center line L of the coiler. Then, the swing angle of the swing guide plate 11 is adjusted and the swing guide plate 11 is swung back to its initial position at one time.

[0104] Among them, the distance between the tip of the shovel head 13 and the steel strip refers to the vertical distance between the tip of the shovel head 13 and the lower surface of the steel strip, and the distance between the tip of the shovel head 13 and the surface of the remaining steel coil refers to the distance between the intersection of the motion trajectory line S of the tip of the shovel head 13 and the surface of the remaining steel coil and the line connecting the tip of the shovel head 13.

[0105] This ensures that the tip of the shovel head 13 maintains a safe distance (i.e., distance B) from the surface of the remaining steel coil. As the coil diameter gradually decreases with unwinding, the inclined steel strip gradually approaches the tip of the shovel head 13. Once the preset distance (i.e., distance A) is reached, the telescopic guide plate 12 swings down to a position, which also converges to the safe distance between the tip of the shovel head 13 and the surface of the remaining steel coil. When the swing range of the shovel head 13 and the remaining steel coil to be unwound no longer have the possibility of interference, the swing guide plate 11 will retract into place in one go. The advantage of this design is that the swing guide plate 11 replaces the continuous movement of the swing guide plate 11 with the change of coil diameter with a step-by-step motion, which greatly reduces the control accuracy requirements of the hydraulic system and the valve selection requirements, and better meets technical and economic requirements.

[0106] More specifically, the coiling system in this embodiment forms part of a single-stand cold rolling mill. The coiler in the coiling system specifically refers to the second coiler 900, and the coiling auxiliary equipment 100 is positioned adjacent to the second coiler 900. In the initial position, the swing hydraulic cylinder 15 is retracted to its minimum length, positioning the shovel head 13 on the first side of the coiler. The telescopic hydraulic cylinder 16 is retracted to its minimum length, positioning the telescopic guide plate 12 in its retracted position. Both the first and second hydraulic cylinders 25 and 34 are retracted to their minimum lengths, positioning the upper and lower pressure rollers 22 and 32 in their high and low open positions, respectively.

[0107] During the first rolling, the swing hydraulic cylinder 15 is first extended to a preset length, and the swing guide plate 11 is swung upward to the first swing position. Its swing angle should ensure that the shovel head 13 is located above the reel of the second coiler 900 and points to the jaws of the reel; then the telescopic hydraulic cylinder 16 is extended to the longest, so that the telescopic guide plate 12 extends outward and the shovel head 13 approaches and aligns with the jaws; then the first hydraulic cylinder 25 is extended to a certain length (the first hydraulic cylinder 25 controls its extension amount through pressure, and extends until the upper pressure roller 22 presses the reel), so that the upper pressure roller 22 is pressed against the outer surface of the reel, and a trumpet-shaped closing area is formed between the guide inclined plate 231 and the shovel head 13.

[0108] When the raw steel coil is unwound by the uncoiler 200, it is straightened and clamped by the three-roll clamping and straightening device 201, and passes through the measuring roller 202, the entrance bending roller 300, the entrance driving steering roller 500, the empty rolling mill 600, the exit bending roller 700 and the exit driving steering roller 800 in sequence. The strip head of the steel coil will follow the swing guide 11, the telescopic guide 12 and the shovel head 13, and be guided by the closing area to the jaws on the reel of the second coiler 900; after the strip head is clamped by the jaws, the telescopic hydraulic cylinder 16 can be retracted to the shortest position, and the swing hydraulic cylinder 15 can be retracted. The shortest, the first hydraulic cylinder 25 retracts to the shortest, so that the telescopic guide 12, the swing guide 11 and the upper pressure roller 22 all return to their initial positions, making room for the next stage of reverse rolling and the final unloading of the coil; then, tension is established between the uncoiler 200, the rolling mill 600 and the second coiler 900, and strip tension rolling can be performed. When the tail of the strip on the uncoiler 200 swings to the entrance side of the rolling mill 600, specifically when the tail of the strip swings between the tension measuring roller 202 and the entrance bending roller 300 and is pressed down by the entrance bending roller 300, the uncoiling is completed, and the first pass of rolling is completed. Since the tension of the single-stand cold rolling mill is relatively large, the reel of the coiler generally adopts a reel with jaws. After the strip head is clamped by the jaws of the reel, it can drive the subsequent steel plate to be wound on the reel. Therefore, during the first pass of rolling, the lower pressure roller 32 does not need to participate in this process.

[0109] Next, reverse rolling can be carried out. The second coiler 900 reverses, and the tail of the strip enters the first coiler 400 in the opposite direction along the entrance drive steering roller 500. The strip tension rolling is carried out between the first coiler 400, the rolling mill 600, and the second coiler 900. After the reverse rolling is completed, multi-pass reciprocating rolling begins. Multi-pass reciprocating rolling is carried out in the tension system formed between the first coiler 400, the rolling mill 600, and the second coiler 900 to form a qualified product. Depending on the process requirements, the final rolled product can be unloaded from the first coiler 400 or the second coiler 900, thus completing one-pass rolling. The processes of reverse rolling and multi-pass reciprocating rolling are the same as those in the prior art. The coiling auxiliary equipment 100 does not play a role in these two processes. During one-pass rolling, the coiling auxiliary equipment 100 mainly plays a role in the first rolling pass to assist coiling.

[0110] After the first rolling process is completed, if further thinning is desired, the steel coil must be rolled off the line and annealed before a second rolling process. During the second rolling process, the swinging hydraulic cylinder 15 is first extended to its maximum length, and the swinging guide plate 11 swings upward to a second swinging position. The swing angle of the second swinging position relative to the initial position is greater than the swing angle of the first swinging position relative to the initial position. Simultaneously, the telescopic hydraulic cylinder 16, the first hydraulic cylinder 25, and the second hydraulic cylinder 34 remain retracted to their minimum length, so that the telescopic guide plate 12 is in the retracted position, and the upper and lower pressure rollers 22 and 32 are both in an open state to ensure space for the coil transport vehicle to roll. After the coiling process is completed, the first and second hydraulic cylinders 25 and 34 are both extended to a certain length (the extension of the first and second hydraulic cylinders 25 and 34 is controlled by pressure, and is extended until the upper and lower pressure rollers 22 and 32 press the steel coil tightly), so that the upper and lower pressure rollers 22 and 32 are both pressed against the steel coil. Then the reel of the second winder 900 rotates, and the angle of the swing guide plate 11 and the position of the shovel head 13 are adjusted by manually controlling the retraction length of the swing hydraulic cylinder 15 and the extension length of the telescopic hydraulic cylinder 16, so that the shovel head 13 can shovel and support the belt head.

[0111] Afterwards, the main force provided by the rotation of the reel of the second coiler 900 and the main force provided by the outlet bending roller 700 are used, and the pressing force of the upper pressure roller 22 and the lower pressure roller 32 on the steel coil is cooperated, so that the strip head continues to climb upward and is delivered to the telescopic guide 12, the swing guide 11, the outlet drive steering roller 800 and the outlet bending roller 700 in turn. After a micro-tension is established between the second coiler 900 and the outlet bending roller 700, the telescopic hydraulic cylinder 16 can be retracted to the shortest position, so that the telescopic guide 12 is retracted to its initial position; in order to ensure stable operation, the upper pressure roller 22 and the lower pressure roller 32 will not be withdrawn until the second coiler 900 and the rolling mill 600 establish stable tension. The strip head is then delivered to the rolling mill 600. After tension is established between the second coiler 900 and the rolling mill 600, the first and second hydraulic cylinders 25 and 34 are retracted to their minimum length, returning the upper and lower pressure rollers 22 and 32 to their initial positions. At this point, due to interference between the shovel head 13 and the steel coil, the swing guide 11 cannot be swung back and must remain in the second swing position. When the strip head is delivered to the rolling mill 600 and pressed down by the rolling mill 600, the secondary rolling process is complete. Under tension, an inclined steel strip is formed between the exit drive steering roller 800 and the second coiler 900.

[0112] Next, the strip head enters the jaws of the first coiler 400. After tension is established between the first coiler 400, the rolling mill 600, and the second coiler 900, the rolling preparation phase begins. At the start of the secondary rolling process, the swing guide 11 is still in its second swing position. Due to the close distance between the second coiler 900 and the exit drive steering roller 800, and the structural design limitations of the telescopic swing guide assembly 1, the swing guide 11, telescopic guide 12, and shovel head 13 are located within the angle formed by the strip and the coil. Since the coil diameter is initially large and thin during the secondary rolling process, the coil diameter changes slowly during the rolling process. Therefore, in this embodiment, the swing guide 11 is adjusted in steps rather than continuously. As rolling progresses, the coil diameter decreases. Each time the distance between the tip of the shovel head 13 and the strip reaches a first set value A, the swing guide 11 angle is adjusted until the distance between the tip of the shovel head 13 and the remaining coil surface reaches a second set value B.

[0113] After multiple such step-by-step operations, when the tip of the shovel head 13 swings to a point where it is collinear with the line L connecting the center of the first pivot 14 and the center of the second coiler 900, the swing trajectory S of the shovel head 13 just does not interfere with the remaining steel coil. The swing hydraulic cylinder 15 can then be retracted once, returning the swing guide plate 11 to its initial position. The entire process of swinging the swing guide plate 11 back to its initial position is controlled by the corresponding controller controlling the action of the swing hydraulic cylinder 15. Generally, after a slight tension is established between the second coiler 900 and the exit bending roller 700, the swing control of the swing guide plate 11 can be started.

[0114] For example, Figure 5 As shown, at the beginning, the distance between the hinge points at both ends of the swing hydraulic cylinder 15 is preset according to the distance D (D is calculated according to the structural parameters and the outer diameter of the feeding steel coil). At this time, the swing guide 11 is in the second swing position, and the diameter of the steel coil is φE; as the rolling process proceeds, the angle between the plate and the plumb line will become smaller. When the diameter of the steel coil is reduced to φF, the set convergence domain value is reached, the swing hydraulic cylinder 15 is actuated, and the swing guide 11 moves to Figure 5 The state of the double-dotted line in the middle; the threshold condition for the start of the action is that the distance between the tip of the shovel head 13 and the lower surface of the steel strip is the set first set value A, and the threshold condition for the end of the action is that the distance between the tip of the shovel head 13 and the surface of the steel coil is the second set value B, and the distance between the hinge points at both ends of the corresponding swing hydraulic cylinder 15 changes from distance D to distance C; and so on, repeat the above step action several times, when the swing range of the shovel head 13 and the remaining steel coil to be unwound do not have the possibility of interference, the swing guide plate 11 will retract into position once, and when it returns to the initial position, the distance between the hinge points at both ends of the corresponding swing hydraulic cylinder 15 changes to distance G.

[0115] In summary, the winding auxiliary device 100, the winding system, and the operating method in this embodiment have the following advantages:

[0116] (1) Achieve multi-functionality in one machine. Under the premise of ensuring the compact arrangement of the single-stand cold rolling mill, the telescopic swing guide plate assembly 1, the upper pressure roller assembly 2 and the lower pressure roller assembly 3 cooperate to realize the auxiliary strip threading function of the first rolling and the secondary uncoiling and thinning function of the steel coil after annealing, and also have an auxiliary effect on coil unloading. In addition, if the strip breaks in the middle of the coiling process, the lower pressure roller 32 can adaptively press against the steel coils of different coil diameters, and cooperate with the coil transport vehicle to facilitate the unloading of the accident coil.

[0117] (2) A new control method is proposed for the loading and unwinding of secondary annealing materials. By setting the action threshold of the swing hydraulic cylinder 15 with a linear displacement sensor, the step-by-step periodic action of the swing hydraulic cylinder 15 during the unwinding process is realized, which reduces the control difficulty of the hydraulic system and the valve selection cost, and has high technical and economic efficiency.

[0118] (3) The steel coil rewinding equipment and operation process are eliminated, which improves labor productivity; it occupies a small space, has a compact structure, requires little investment, and is easy to inspect and maintain.

[0119] The above is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention.

Claims

1. A coiling auxiliary device, applied to a coiling machine, characterized in that: The coiling auxiliary equipment includes: A telescopic swing guide assembly includes a swing guide, a telescopic guide, and a shovel head, which are sequentially arranged from top to bottom. The telescopic guide is linearly slidably arranged on the swing guide. The swing guide can swing around a first pivot, and the axial direction of the first pivot is perpendicular to the sliding direction of the telescopic guide. An upper pressure roller assembly includes an upper swing arm and an upper pressure roller and a guide provided at the end of the upper swing arm, wherein the upper swing arm can swing around a second pivot, and the guide has a guide inclined plate; a lower pressure roller assembly comprising a lower swing arm and a lower pressure roller provided at an end of the lower swing arm, wherein the lower swing arm is capable of swinging around a third pivot; wherein the axial directions of the first pivot, the second pivot and the third pivot are all parallel to the axial direction of the coiler, the telescopic swing guide assembly is used to be installed on the first side of the coiler, and the swing guide can drive the shovel head to swing from the first side of the coiler to the top of the coiler; the upper pressure roller assembly and the lower pressure roller assembly are both used to be installed on the second side of the coiler, the upper swing arm can swing in the area above the horizontal plane where the axis of the coiler is located, and the upper swing arm can drive the upper pressure roller to swing in the direction of approaching or away from the coiler, and the guide inclined plate can form a closing area with a downward gradually shrinking size between the upper pressure roller and the shovel head when the upper pressure roller is pressed against the reel of the coiler; the lower swing arm can swing in the area below the horizontal plane where the axis of the coiler is located, and the lower swing arm can drive the lower pressure roller to swing in the direction of approaching or away from the coiler; The upper pressure roller and the lower pressure roller are both rubber-coated pressure rollers, and the guide inclined plate can extend to the upper pressure roller and cover part of the upper pressure roller; the telescopic guide plate is connected to the swing guide plate through a linear sliding pair, and the swing guide plate, the telescopic guide plate and the front of the shovel head are all located in the same plane.

2. The winding auxiliary device according to claim 1, characterized in that When the upper pressure roller is pressed against the reel of the reeler, the guide inclined plate is located at a position inclined from the vertical surface toward the direction close to the shovel head.

3. The winding auxiliary device according to claim 1, characterized in that The thickness of the lower end of the shovel head gradually decreases from the upper end to the lower end. The hardness of the shovel head is greater than the hardness of the telescopic guide plate. The shovel head is connected to the telescopic guide plate through a fastener.

4. The winding auxiliary device according to claim 1, characterized in that The telescopic swing guide assembly also includes a swing drive and a telescopic drive, the swing drive is used to drive the swing guide to swing, and the telescopic drive is used to drive the telescopic guide to slide relative to the swing guide; the upper pressure roller assembly also includes a first drive for driving the upper swing arm to swing; the lower pressure roller assembly also includes a second drive for driving the lower swing arm to swing.

5. The winding auxiliary device according to claim 4, characterized in that: The winding auxiliary equipment also includes a first frame; the swinging drive component includes a swinging hydraulic cylinder, the upper end of the swinging guide plate is hinged to the first frame through the first pivot, the first end of the swinging hydraulic cylinder is hinged to the swinging guide plate, and the second end of the swinging hydraulic cylinder is hinged to the first frame; the telescopic drive component includes a telescopic hydraulic cylinder, the first end of the telescopic hydraulic cylinder is hinged to the swinging guide plate, and the second end of the telescopic hydraulic cylinder is hinged to the telescopic guide plate.

6. The winding auxiliary device according to claim 5, characterized in that The winding auxiliary equipment also includes a second frame; the first driving member includes a first hydraulic cylinder, the upper swing arm is hinged to the second frame through the second pivot, the first end of the first hydraulic cylinder is hinged to the upper swing arm, and the second end of the first hydraulic cylinder is hinged to the second frame; the second driving member includes a second hydraulic cylinder, the lower swing arm is hinged to the second frame through the third pivot, the first end of the second hydraulic cylinder is hinged to the lower swing arm, and the second end of the second hydraulic cylinder is hinged to the second frame.

7. The winding auxiliary device according to claim 5, characterized in that The first pivot and the second pivot are both located above the horizontal plane where the axis of the winder is located, and the third pivot is located below the horizontal plane where the axis of the winder is located; an arc-shaped plate is fixed to the upper end of the swing guide plate, and the end of the arc-shaped plate is hinged to the first frame through the first pivot.

8. The winding auxiliary device according to claim 5, characterized in that A linear displacement sensor is provided on the swing hydraulic cylinder.

9. A coiling system, characterized in that: The invention comprises a coiler and a coiling auxiliary device as described in any one of claims 1 to 8.

10. A method for operating a coiling system, characterized in that: Operated using the coiling system as claimed in claim 9; The operation method of the coiling system for performing auxiliary coiling during the first rolling pass comprises the following steps: Swing the shovel head to above the reel of the reeler, and slide the telescopic guide plate out until the end of the shovel head points to and approaches the jaws on the reel; The upper swing arm is swung until the upper pressure roller is pressed against the reel, and a closing area with a size gradually shrinking downward is formed between the guide inclined plate and the shovel head; After the raw steel coil is uncoiled by the uncoiler and passes through the rolling mill, the exit bending roller and the exit transmission turning roller, the lead of the raw steel coil is guided to the jaws by the closing area along the swing guide plate, the telescopic guide plate and the shovel head; The operation method of the coiling system during secondary rolling and uncoiling comprises the following steps: The shovel head is swung to above the reel of the reeler, the telescopic guide plate is in a retracted position, and the upper pressure roller and the lower pressure roller are both in a position away from the reel; Sleeve the steel coil to be rolled for the second time on the reel, and then press the upper pressing roller and the lower pressing roller against the steel coil to be rolled for the second time; By adjusting the swing angle of the swing guide plate, adjusting the sliding extension distance of the telescopic guide plate and cooperating with the rotation of the reel, the strip head of the steel coil to be rolled for the second time can be picked up by the shovel head and delivered to the telescopic guide plate, the swing guide plate and the exit drive steering roller in sequence.

11. The method for operating a take-up system according to claim 10, wherein: The coiling system operates as follows to swing the swing guide back to its initial position during the secondary rolling process after the secondary rolling and uncoiling are completed: After the secondary rolling and uncoiling is completed, an inclined steel strip is formed between the exit drive steering roller and the coiler, and the shovel head is located within the angle formed by the steel strip and the remaining steel coil; When the distance between the tip of the shovel head and the steel strip reaches a first set value, the swing angle of the swing guide is adjusted so that the distance between the tip of the shovel head and the surface of the remaining steel coil reaches a second set value; the operation is repeated until the tip of the shovel head swings to be collinear with the center of the first pivot and the center line of the coiler, and then the swing angle of the swing guide is adjusted and the swing guide is swung back to the initial position at one time; Among them, the distance between the tip of the shovel head and the steel strip refers to the vertical distance between the tip of the shovel head and the lower surface of the steel strip, and the distance between the tip of the shovel head and the surface of the remaining steel coil refers to the distance between the intersection of the motion trajectory line of the tip of the shovel head and the surface of the remaining steel coil and the line connecting the tip of the shovel head.

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