A steel coil tensioning device for an uncoiler

Abstract

The present invention relates to the technical field of uncoilers, and specifically to a steel coil tensioning device for an uncoiler, comprising: a conveying mechanism for conveying steel coils, and a tensioning mechanism for tensioning the steel coils. The steel coil tensioning device for an uncoiler of the present invention preliminarily fixes the steel coils by setting a conveying mechanism while adjusting the height, so that the axis of the steel coil is flush with the axis of the main shaft on the subsequent tensioning mechanism, to prevent collision accidents between the steel coils and transportation components, resulting in damage to the edge of the steel coils and affecting product quality; the steel coils are then pre-treated by the tensioning mechanism, and the steel coils before tensioning are subjected to anti-skid treatment to ensure their stability during the tensioning process; after the anti-skid treatment is completed, the tensioning mechanism further performs a tensioning operation on the steel coils, and by enhancing the friction between the steel coils and the tensioning mechanism, the anti-skid performance of the steel coils in the tensioned state is significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of uncoilers, and in particular to a steel coil tensioning device of an uncoiler. Background Art

[0002] The uncoiler is a device specially used for metal coil processing. It can smoothly unfold the curled metal sheet and provide a continuous supply of sheet for subsequent stamping, shearing and other processes.

[0003] Patent application number CN202310391556.7 discloses a steel coil tensioning device for an uncoiler, including a baffle, a sliding track, and a placement component, the placement component is used to reciprocate horizontally on the sliding track driven by a motor, the bottom of the placement component is slidably connected to the sliding track, the position of the sliding track close to the placement component is fixedly connected to the baffle, the position of the sliding track away from the baffle is fixedly connected to a base plate, and the top of the base plate is fixedly connected to a base, and the present invention relates to the technical field of uncoilers. In the steel coil tensioning device of the uncoiler, a plurality of sensors arranged on the sensor placement box detect the surroundings of the device when the device is working, to ensure the stability of the tensioning component when installing the steel coil, to avoid the tensioning component from loosening when installing the steel coil, resulting in improper installation, to prevent the steel coil from colliding during subsequent transportation and installation, resulting in damage to the edge of the steel coil, and to be able to adjust the height of the steel coil installation during transportation.

[0004] This patent can adjust the installation height of the steel coil during the transportation of the steel coil, but the specific adjustment height still needs to be judged manually based on observation. Relying solely on manual visual judgment not only greatly prolongs the time cycle of the loading operation, but also significantly increases the frequency of physical contact, which can easily cause collision accidents between the steel coil and the transportation parts, causing damage to the edge of the steel coil and affecting product quality.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a steel coil tensioning device for an uncoiler which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0008] A steel coil tightening device for an uncoiler, comprising: a conveying mechanism for conveying the steel coil, and a tightening mechanism for tightening the steel coil;

[0009] The conveying mechanism comprises: a material carrier, a moving module driving the material carrier to approach the tensioning mechanism, a cylinder fixedly mounted on the material carrier, a bearing plate fixedly connected to the cylinder, a pressure plate elastically mounted on the bearing plate, a clamping member for clamping the steel coil circumferentially as the pressure plate is pressed downward, and an adjusting unit for controlling the cylinder to extend and retract different distances for steel coils of different diameters; the clamping member is rotatably mounted on the bearing plate; the clamping member is divided into a clamping end and a pressure-receiving end;

[0010] The pressure plate moves downward due to the weight of the steel coil, pushing the pressure end to flip, and the clamping end flips synchronously to clamp the steel coil;

[0011] The tensioning mechanism comprises: a frame, a main shaft rotatably mounted on the frame, a motor driving the main shaft to rotate, a support plate for tensioning the steel coil, and a driving unit driving the support plate to expand.

[0012] Furthermore, the adjustment unit includes: a distance sensor for measuring the moving distance of the pressure plate, an information processor for receiving and analyzing the distance sensor signal; a controller for controlling the extension and retraction distance of the cylinder according to the result of the information processor; the distance sensor is electrically connected to the information processor; the information processor is electrically connected to the controller; the distance sensor, information processor, and controller are respectively fixedly mounted on the supporting plate.

[0013] Furthermore, the driving unit is composed of an articulated rod 1, an articulated rod 2, a slip ring, and a cylinder 2 that pushes the slip ring to slide; the support plate is hinged to the main shaft through the articulated rod 1; the two ends of the articulated rod 2 are respectively hinged to the slip ring and the support plate; the slip ring is slidably installed on the main shaft, and the piston rod of the cylinder 2 is fixedly connected to the slip ring.

[0014] Furthermore, a pre-treatment mechanism for pre-treating the steel coil before tensioning is provided on one side of the main shaft;

[0015] The pretreatment mechanism comprises: a cavity opened on one side of the main shaft, an oil removal component slidably installed in the cavity, and a power source for driving the oil removal component and the material carrier to move synchronously in the opposite direction.

[0016] Furthermore, the oil removal assembly includes: an extension sleeve slidably installed in the cavity, a guide groove opened on the side wall of the extension sleeve, a cleaning piece elastically connected to the extension sleeve, and a push block that pushes the cleaning piece through the guide groove; the power source is fixedly connected to the push block.

[0017] Furthermore, the cleaning part is composed of a retractable block, a spring, a mounting plate, a bull's eye ball, and a cleaning brush; the retractable block is elastically mounted on the extension sleeve and slidably mounted in the guide groove; the mounting plate is elastically mounted on the retractable block through a spring; the bull's eye ball and the cleaning brush are respectively fixedly connected to the mounting plate.

[0018] Furthermore, a spraying assembly for spraying a degreasing agent is also provided in the extension sleeve;

[0019] The spray assembly includes: a liquid pumping chamber fixedly installed in the extension sleeve, a piston slidably installed in the liquid pumping chamber, and a nozzle for spraying the liquid pumping chamber; the piston is fixedly connected to the push block; the liquid outlet end of the liquid pumping chamber is connected to the nozzle through a hose, and the nozzle is fixedly installed on the mounting plate.

[0020] Furthermore, the mounting plate is also provided with a second distance sensor for detecting the inner diameter of the steel coil.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The steel coil tensioning device of the uncoiler of the present invention preliminarily fixes the steel coil and adjusts its height at the same time by setting a conveying mechanism, so that the axis of the steel coil is aligned with the axis of the main shaft on the subsequent tensioning mechanism, thereby preventing collision accidents between the steel coil and the transport components, resulting in damage to the edge of the steel coil and affecting product quality.

[0023] The steel coil is then pre-treated by the tensioning mechanism, and an anti-skid treatment is performed on the steel coil before tensioning to ensure its stability during the tensioning process; after the anti-skid treatment is completed, the tensioning mechanism further tightens the steel coil, and by enhancing the friction between the steel coil and the tensioning mechanism, the anti-skid performance of the steel coil in the tensioned state is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0025] Figure 1 It is a structural schematic diagram of a steel coil tensioning device of an uncoiler of the present invention;

[0026] Figure 2 This is a front view of a steel coil tensioning device of an uncoiler of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the conveying mechanism in the present invention;

[0028] Figure 4 It is a front view of the conveying mechanism in the present invention;

[0029] Figure 5 It is a schematic structural diagram of the anti-rebound device in the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the present invention when pre-treating a steel coil;

[0031] Figure 7 It is a structural schematic diagram of the tensioning mechanism in the present invention;

[0032] Figure 8 is a cross-sectional view of the tensioning mechanism of the present invention;

[0033] Fig. 9 It is a structural schematic diagram of the pretreatment mechanism in the present invention;

[0034] Fig.10 for Figure 8 A partial enlarged view of part A;

[0035] Fig.11 It is a structural schematic diagram of the mounting plate in the present invention.

[0036] In the figure: 1. conveying mechanism; 2. tensioning mechanism; 11. material carrier; 12. moving module; 13. cylinder 1; 14. bearing plate; 15. pressure plate; 16. clamping member; 161. clamping end; 162. pressure end; 21. frame; 22. spindle; 23. motor; 24. support plate; 251. hinge rod 1; 252. hinge rod 2; 253. slip ring; 254. cylinder 2; 3. pretreatment mechanism; 31. cavity; 33. power Source; 321, extension sleeve; 323, cleaning piece; 324, push block; 3231, retracting block; 3232, spring; 3233, mounting plate; 3234, bull's eye ball; 3235, cleaning brush; 341, liquid extraction chamber; 342, piston; 343, nozzle; 344, hose; 41, locking block one; 42, abutment block; 43, locking block two; 5, anti-rebound device; 51, protective shaft; 52, cylinder three; 53, pressure roller. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0038] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] like Figures 1 to 11 As shown, the present invention is a steel coil tightening device for an uncoiler;

[0040] A steel coil tightening device for an uncoiler, comprising: a conveying mechanism 1 for conveying the steel coil, and a tightening mechanism 2 for tightening the steel coil;

[0041] When the steel coil needs to be unwound, the staff uses a forklift to carry the steel coil to be unwound to the conveying mechanism 1, and the conveying mechanism 1 preliminarily fixes the steel coil and adjusts its height so that the axis of the steel coil is aligned with the axis of the main shaft 22 on the subsequent tensioning mechanism, thereby preventing collision accidents between the steel coil and the transport components, resulting in damage to the edge of the steel coil and affecting product quality.

[0042] When the steel coil is conveyed to the tensioning mechanism 2 by the conveying mechanism 1, the tensioning mechanism pre-treats the steel coil and performs anti-skid treatment on the steel coil before tensioning to ensure its stability during the tensioning process; after completing the anti-skid treatment, the tensioning mechanism 2 further tightens the steel coil to significantly improve the anti-skid performance of the steel coil in the tensioned state by enhancing the friction between the steel coil and the tensioning mechanism 2.

[0043] The conveying mechanism 1 includes: a carrier 11, a moving module 12 that drives the carrier 11 to approach the tensioning mechanism, a cylinder 13 fixedly installed on the carrier 11, a bearing plate 14 fixedly connected to the cylinder 13, a pressure plate 15 elastically installed on the bearing plate 14, a clamping member 16 that clamps the steel coil circumferentially as the pressure plate 15 presses down, and an adjustment unit that controls the cylinder 13 to extend and retract different distances for steel coils of different diameters; the clamping member 16 is rotatably installed on the bearing plate 14; the clamping member 16 is divided into a clamping end 161 and a pressure end 162; the pressure plate 15 moves downward due to the gravity of the steel coil, pushing the pressure end 162 to flip, and the clamping end 161 flips synchronously to clamp the steel coil.

[0044] When the steel coil is transported to the transport mechanism by a forklift, the steel coil will be placed on the pressure plate 15. At this time, the pressure plate 15 moves downward due to the gravity load applied by the steel coil. This displacement process synchronously squeezes the pressure end 162 of the clamping member 16, causing the pressure end 162 to rotate away from the pressure plate 15. At the same time, the clamping end 161 rotates toward the pressure plate 15 to fix the steel coil on the pressure plate 15. The cylinder 13 then pushes the carrier plate 14 to a specified distance based on the amount of lift calculated by the adjustment unit, so that the steel coil is flush with the axis of the main shaft 22. Finally, the moving module 12 drives the carrier 11 to approach the tensioning mechanism, so that the steel coil on the carrier 11 is sleeved outside the main shaft 22, preparing for the subsequent tensioning mechanism to tighten it.

[0045] It should be added here that the clamping member 16 is preferably a steel member with an angle of 120°, and a protective member is installed on the clamping end 161 thereof to prevent the clamping end 161 from scratching the steel coil and causing scratches. Two groups of clamping members 16 are arranged in opposite directions to achieve the clamping of the steel coil.

[0046] Therefore, the mechanism can clamp steel coils of different thicknesses and center the steel coils placed on the carrier 11, thereby better improving the accuracy of the subsequent steel coils being aligned with the axis of the main shaft 22, making clamping more convenient and eliminating the need for manual intervention, thereby reducing the risk of steel coils injuring operators.

[0047] The adjustment unit includes: a distance sensor for measuring the moving distance of the pressure plate 15, an information processor for receiving and analyzing the distance sensor signal; a controller for controlling the extension and retraction distance of the cylinder 13 according to the result of the information processor; the distance sensor is electrically connected to the information processor; the information processor is electrically connected to the controller; the distance sensor, the information processor, and the controller are respectively fixedly mounted on the carrier plate 14.

[0048] When the clamping member 16 fixes the steel coil placed on the bearing plate 14, if the outer diameter of the steel coil is large, the clamping end 161 of the clamping member 16 will contact and clamp the steel coil earlier. After the clamping end 161 of the clamping member 16 abuts against the steel coil, the pressure end 162 stops rotating, and the pressing plate 15 stops moving downward under the restriction of the pressure end 162. At this time, the downward movement distance of the pressing plate 15 is shortened. Similarly, when the outer diameter of the steel coil is reduced, the clamping end 161 of the clamping member 16 requires the pressure end 162 of the clamping member 16 to rotate a larger angle to achieve clamping, so the downward movement distance of the pressing plate 15 increases.

[0049] Therefore, the downward movement distance of the pressure plate 15 is proportional to the outer diameter of the steel coil. The distance sensor detects the downward movement distance of the pressure plate 15 after the steel coil is fixed, which can be used to feedback the outer diameters of steel coils of different sizes. When the steel coil is placed on the pressure plate 15, the distance sensor detects the downward movement distance of the pressure plate 15, and the information processor receives the distance measured by the distance sensor for analysis, and then converts the downward movement distance of the pressure plate 15 into the outer diameter of the steel coil through the conversion ratio, and calculates the rising distance of the support plate 14 through the outer diameter; then it is fed back to the controller, and the controller controls the cylinder 13 to retract the corresponding distance based on the distance calculated by the processor; so as to achieve the alignment of the axis center of the steel coil with the axis center of the main shaft 22 in the tensioning mechanism 2, thereby reducing the problem of collision between the steel coil and the main shaft 22; the conversion ratio is set manually based on experience.

[0050] It should be added here that a hydraulic rod is installed under the pressure plate 15. When the steel coil is placed on the pressure plate 15, the pressure plate 15 pushes the hydraulic rod to slowly move downward under pressure. The hydraulic rod can share the pressure of the steel coil on the hydraulic rod, and the pressure plate 15 or the clamping part 16 will not be damaged due to the excessive weight of the steel coil.

[0051] As a further innovation of the present device, the present device is also provided with an anti-rebound device 5; the anti-rebound device 5 includes: a protective shaft 51 rotatably installed on the frame 21, a cylinder three 52 driving the protective shaft 51 to rotate, and a pressure roller 53 fixedly installed on the protective shaft 51; the telescopic rod of the cylinder three 52 is hinged to the protective shaft 51; after the controller calculates the inner diameter of the steel coil, the cylinder three 52 can push the protective shaft 51 to rotate the most appropriate distance according to the inner diameter of the steel coil calculated by the controller, so that the pressure roller 53 can just fit the steel coil, thereby preventing the problem of too large or too small adjustment amount when manually adjusting the distance from the pressure roller 53 to the steel coil.

[0052] The tensioning mechanism includes: a frame 21, a main shaft 22 rotatably mounted on the frame 21, a motor 23 driving the main shaft 22 to rotate, a support plate 24 for tensioning the steel coil, and a driving unit driving the support plate 24 to expand. The driving unit is composed of a hinge rod 1 251, a hinge rod 252, a slip ring 253, and a cylinder 254 for pushing the slip ring 253 to slide; the support plate 24 is hinged to the main shaft 22 through the hinge rod 1 251; the two ends of the hinge rod 252 are respectively hinged to the slip ring 253 and the support plate 24; the slip ring 253 is slidably mounted on the main shaft 22, and the piston 342 rod of the cylinder 254 is fixedly connected to the slip ring 253.

[0053] When the moving module 12 brings the carrier 11 close to the tensioning mechanism, the steel coil placed in the supporting plate 14 will be sleeved on the outside of the main shaft 22. At this time, the cylinder 254 pushes the slip ring 253 to slide on the main shaft 22, and the slip ring 253 pushes the support plate 24 to expand outward through the hinge rod 252, thereby tightening the steel coil sleeved on the outside of the main shaft 22. After the steel coil is tightened, the motor 23 drives the main shaft 22 to rotate, thereby driving the tightened steel coil to rotate, thereby realizing the subsequent winding and unwinding operations.

[0054] In the manufacturing process of steel coils, in order to prevent the steel surface from being oxidized or rusted, measures such as coating the steel surface with anti-rust oil or protective grease are often adopted. However, when the steel coil is subsequently tensioned (i.e. tightened), these protective lubricants coated on the steel surface often reduce the sliding friction coefficient of the support plate 24 surface, thereby causing the support plate 24 to slip, which significantly affects the tightening efficiency and stability of the steel coil.

[0055] A pre-treatment mechanism 3 for pre-treating the steel coil before tensioning is also provided on one side of the main shaft 22;

[0056] The pre-treatment mechanism 3 includes: a cavity 31 opened on one side of the main shaft 22, an oil removal component slidably installed in the cavity 31, and a power source 33 that pushes the oil removal component and the carrier 11 to move synchronously in the opposite direction. The oil removal component includes: an extension sleeve 321 slidably installed in the cavity 31, a guide groove opened on the side wall of the extension sleeve 321, a cleaning member 323 elastically connected to the extension sleeve 321, and a push block 324 that pushes the cleaning member 323 through the guide groove; the power source 33 is fixedly connected to the push block 324.

[0057] The power source 33 is preferably a hydraulic cylinder, and the frame 21 along the feeding direction is provided with proximity switches for charging different hydraulic pressures into the hydraulic cylinder, and the loading frame 11 is also provided with a sensing element;

[0058] As the carrier 11 moves slowly toward the main shaft 22 on the frame 21, the sensing elements on the carrier 11 approach and trigger the proximity switch in turn, thereby continuously filling the hydraulic cylinder with hydraulic oil; to realize the synchronous reverse movement of the carrier 11 and the hydraulic cylinder, when the piston 342 rod of the hydraulic cylinder extends, it will push the push block 324 to move in the direction of the carrier 11, and the push block 324 will simultaneously push the extension sleeve 321 to move in the cavity 31 until the locking block 41 on the extension sleeve 321 abuts against the abutment block 42 at the mouth of the cavity 31, and the extension sleeve 321 stops moving due to the abutment block 42, at this time, the piston 342 rod continues to push the push block 324 to move in the direction of the carrier 11, and at this time, the push block 324 is inserted into the extension sleeve 321 to squeeze the cleaning member 323 in the extension sleeve 321 out of the extension sleeve 321 through the guide groove, so that the cleaning member 323 contacts the inner wall of the steel coil to remove oil and clean the inner wall of the steel coil.

[0059] The cleaning member 323 is composed of a retracting block 3231, a spring 3232, a mounting plate 3233, a bull's eye ball 3234, and a cleaning brush 3235; the retracting block 3231 is elastically mounted on the extension sleeve 321 and slidably mounted in the guide groove; the mounting plate 3233 is elastically mounted on the retracting block 3231 by means of a spring 3232; the bull's eye ball 3234 and the cleaning brush 3235 are fixedly connected to the mounting plate 3233, respectively.

[0060] When the cleaning element 323 is driven by the push block 324 and pushed out from the extension sleeve 321, the push block 324 comes into contact with the retracting block 3231, wherein the push block 324 is provided with an inclined surface, which causes the retracting block 3231 to gradually move outward under the pressure of the inclined surface and away from the extension sleeve 321, causing the bull's eye ball 3234 mounted on the retracting block 3231 to contact the inner surface of the steel coil; multiple groups of expandable cleaning elements 323 are arranged inside the extension sleeve 321, and when the push block 324 retracts into the extension sleeve 321, these cleaning elements can expand from the inside of the sleeve to the surroundings, thereby achieving The inner wall of the steel coil is now supported at multiple points; by installing a spring 3232 between the mounting plate 3233 and the shrinking block 3231, adaptive adjustment can be made for steel coils of different inner diameters to ensure that the bull's eye ball 3234 is always in close contact with the inner wall of the steel coil. At the same time, the cleaning brush 3235 maintains an optimal cleaning distance from the inner wall of the steel coil under the limiting effect of the bull's eye ball 3234; finally, the main shaft 22 is driven to rotate by the motor 23, the extension sleeve 321 rotates synchronously with the main shaft 22, and the cleaning member 323 rotates synchronously with the extension sleeve 321, thereby degreasing the inner diameter of the steel coil.

[0061] Through the above structure: on the one hand, the cleaning member 323 is used to implement internal support for the steel coil, thereby achieving preliminary soft tightening treatment for steel coils with different inner diameters, effectively releasing the internal stress and residual stress inside the steel coil, thereby reducing the elastic rebound phenomenon of the steel coil during the uncoiling process; on the other hand, the design can accurately deliver the cleaning brush 3235 to the inner diameter surface of the steel coil, effectively remove the oil stains on the inner diameter of the steel coil, and prevent slipping caused by oil stains during the tightening process of the steel coil.

[0062] Moreover, after the carrier 11 conveys the steel coil to the main shaft 22, the mobile module 12 drives the carrier 11 to move in the opposite direction. At the same time, the hydraulic cylinder cooperates to drive the push block 324 to reset. When the push block 324 moves in the opposite direction to the end in the extension sleeve 321, the push block 324 contacts the compression of the contraction block 3231. At this time, the contraction block 3231 is reset to the inside of the extension sleeve 321 under the action of the elastic member. The elastic member is preferably a spring 3232. At the same time, the push block 324 continues to retract into the cavity 31 until it is The locking block 2 43 thereon contacts and abuts against the locking block 1 41 on the extension sleeve 321; during this process, the retraction action of the push block 324 simultaneously drives the extension sleeve 321 and the cleaning member 323 inside it to shrink into the cavity 31; therefore, when the device is in the steel coil unwinding state or non-working state, the cleaning member 323 can automatically retract into the cavity 31 of the main shaft 22, thereby further reducing the overall occupied space of the device and effectively avoiding the pollution and other problems that may be caused by the cleaning member 323 in the non-working state.

[0063] The extension sleeve 321 is also provided with a spraying assembly for spraying a degreasing agent;

[0064] The spray assembly includes: a liquid extraction chamber 341 fixedly installed in the extension sleeve 321, a piston 342 slidably installed in the liquid extraction chamber 341, and a nozzle 343 for spraying the liquid extraction chamber 341; the piston 342 is fixedly connected to the push block 324; the liquid outlet end of the liquid extraction chamber 341 is connected to the nozzle 343 through a hose 344, and the nozzle 343 is fixedly installed on the mounting plate 3233.

[0065] When the push block 324 is displaced inside the extension sleeve 321, the push block 324 simultaneously drives the piston 342 to slide along the inside of the pumping chamber 341, thereby exerting pressure on the degreaser stored in the pumping chamber 341, forcing it to flow toward and spray out onto the nozzle 343 configured on the mounting plate 3233; the nozzle 343 then sprays the degreaser evenly onto the surface of the cleaning brush 3235, thereby enhancing the cleaning efficiency of the cleaning brush 3235; and when the push block 324 is displaced in the reverse direction, it can guide the pumping chamber 341 to inhale additional degreaser, thereby achieving accurate metering of the degreaser used and effectively avoiding waste.

[0066] As a further development of this profession: the mounting plate 3233 is also provided with a second distance sensor for detecting the inner diameter of the steel coil; the second distance sensor is respectively installed on the support plate 24; when the push block 324 drives the mounting plate 3233 and supports it on the inner wall of the steel coil, the second distance sensor will measure the distance between the two symmetrically arranged support plates 24, and this distance represents the inner diameter of the steel coil; by accurately measuring the inner diameter of the steel coil, the cylinder 254 can be adjusted accordingly to quickly push the slip ring 253 until the support plate 24 accurately reaches the inner diameter position of the steel coil; then, the propulsion speed of the cylinder 254 is reduced to finely adjust the tension of the steel coil; thereby effectively reducing the pressure fluctuation and damage risk on the surface of the steel coil, ensuring the stability and safety of the steel coil during processing.

[0067] The present invention provides a technical solution: a method for using a steel coil tensioning device of an uncoiler:

[0068] S1. Place the steel coil on the pressing plate 15. The pressing plate 15 moves downward due to the weight of the steel coil, and synchronously abuts against the clamping member 16 to clamp the steel coil, so as to clamp steel coils of different thicknesses and center the steel coil placed on the carrier 11;

[0069] S2, the outer diameter of the steel coil is measured by the adjustment unit, and then the controller controls the cylinder 13 to expand and contract by a corresponding distance according to the distance calculated by the processor; so as to align the axis of the steel coil with the axis of the main shaft 22 in the tensioning mechanism 2, thereby reducing the problem of collision between the steel coil and the main shaft 22;

[0070] S3, the moving module 12 moves the carrier 11 close to the main shaft 22, so that the steel coil on the carrier 11 is sleeved on the main shaft 22;

[0071] S4. When the moving module 12 moves the carrier 11 close to the spindle 22, the piston 342 of the hydraulic cylinder pushes the push block 324 to move toward the carrier 11, and the push block 324 simultaneously pushes the extension sleeve 321 to move in the cavity 31, so that the cleaning member 323 of the extension sleeve 321 approaches the inner wall of the steel coil before the steel coil moves to the spindle 22, rotates with the motor 23, and removes oil from the inner wall of the steel coil;

[0072] S5. When the device is in the coil unwinding state or non-working state, the cleaning member 323 is retracted into the cavity 31 of the main shaft 22 under the drive of the hydraulic rod, thereby further reducing the overall occupied space of the device and effectively avoiding the pollution that may be caused by the cleaning member 323 in the non-working state.

[0073] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0074] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A steel coil tightening device for an uncoiler, characterized in that: include: A conveying mechanism for conveying steel coils and a tensioning mechanism for tightening steel coils; The conveying mechanism comprises: a material carrier, a moving module driving the material carrier to approach the tensioning mechanism, a cylinder 1 fixedly mounted on the material carrier, a bearing plate fixedly connected to the cylinder 1, a pressure plate elastically mounted on the bearing plate, a clamping member for clamping the steel coil circumferentially as the pressure plate is pressed downward, and an adjusting unit for controlling the cylinder 1 to extend and retract different distances for steel coils of different diameters; the clamping member is rotatably mounted on the bearing plate; the clamping member is divided into a clamping end and a pressure-receiving end; The pressure plate moves downward due to the weight of the steel coil, pushing the pressure end to flip, and the clamping end flips synchronously to clamp the steel coil; The tensioning mechanism comprises: a frame, a main shaft rotatably mounted on the frame, a motor driving the main shaft to rotate, a support plate for tensioning the steel coil, and a driving unit driving the support plate to expand; A pre-treatment mechanism for pre-treating the steel coil before tensioning is also provided on one side of the main shaft; The pre-treatment mechanism comprises: a cavity opened on one side of the main shaft, an oil removal component slidably installed in the cavity, and a power source for driving the oil removal component and the carrier to move synchronously in the opposite direction; The oil removal assembly comprises: an extension sleeve slidably mounted in the cavity, a guide groove provided on the side wall of the extension sleeve, a cleaning member elastically connected to the extension sleeve, and a push block for pushing the cleaning member through the guide groove; the power source is fixedly connected to the push block; The cleaning member is composed of a retractable block, a spring, a mounting plate, a bull's eye ball, and a cleaning brush; the retractable block is elastically mounted in the extension sleeve; the mounting plate is elastically mounted on the retractable block through a spring; the bull's eye ball and the cleaning brush are fixedly connected to the mounting plate respectively; The extension sleeve is also provided with a spraying assembly for spraying a degreasing agent; The spray assembly includes: a liquid extraction chamber fixedly installed in the extension sleeve, a piston slidably installed in the liquid extraction chamber, and a spray head; the piston is fixedly connected to the push block; the liquid outlet end of the liquid extraction chamber is connected to the spray head through a hose, and the spray head is fixedly installed on the mounting plate.

2. The steel coil tensioning device of the uncoiler according to claim 1, characterized in that: The adjustment unit includes: a distance sensor for measuring the moving distance of the pressure plate, an information processor for receiving and analyzing the distance sensor signal, and a controller for controlling the extension and retraction distance of the cylinder according to the result of the information processor; the distance sensor is electrically connected to the information processor; the information processor is electrically connected to the controller; the distance sensor, information processor, and controller are respectively fixedly mounted on the supporting plate.

3. The steel coil tensioning device for an uncoiler according to claim 1, characterized in that: The driving unit is composed of an articulated rod 1, an articulated rod 2, a slip ring, and a cylinder 2 for pushing the slip ring to slide; the support plate is hinged to the main shaft through the articulated rod 1; the two ends of the articulated rod 2 are respectively hinged to the slip ring and the support plate; the slip ring is slidably installed on the main shaft, and the piston rod of the cylinder 2 is fixedly connected to the slip ring.

4. The steel coil tensioning device for an uncoiler according to claim 1, characterized in that: The mounting plate is also provided with a second distance sensor for detecting the inner diameter of the steel coil.

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