An adaptive tension control steel coil unwinding device

Abstract

The utility model belongs to the field of steel coil uncoiling, concretely is a kind of steel coil uncoiling device of self-adapting tension control, including main part, the side of main part is provided with adjusting assembly;Adjusting assembly includes base, the side hinged joint of base has second hydraulic cylinder, the output of second hydraulic cylinder movable installation has second piston rod, the other end of second piston rod is hinged with first pivot, and first pivot is rotatably installed in the inner chamber of base, and first pivot is fixedly installed with movable rack and penetrates;Tension sensor detects steel coil uncoiling tension in real time and signal is fed back to control system, third hydraulic cylinder drives adjusting rack to adjust tension sensor detection angle to ensure detection accuracy, simultaneously, second hydraulic cylinder dynamically adjusts the pressure degree of force to steel coil by contact roll, realizes the real-time detection and dynamic self-adapting adjustment of tension, solves the problem of traditional device tension control lag, insufficient precision, improves the stability of steel coil uncoiling and steel plate quality.

Description

Technical Field

[0001] This utility model relates to the field of steel coil uncoiling, specifically an adaptive tension control steel coil uncoiling device. Background Technology

[0002] Uncoiling is a key process that unfolds coiled steel into flat sheets or narrow strips, and it is widely used in industries such as automobile manufacturing, home appliances, and construction.

[0003] Chinese Patent No. CN202420469342.7 discloses a steel coil uncoiling device, including a main body assembly. The main body assembly includes: a base on which an uncoiler body is mounted; a hollow shaft mounted on the uncoiler body; a support assembly on the base; the support assembly includes: a slide rail mounted on the base; a frame slidably connected to the slide rail; a first groove formed on one side of the uncoiler body; a second groove formed on one side of the uncoiler body; a first set bolt mounted on the frame; a plate slidably connected to the frame, with one end of the plate tightly against the outer side of the hollow shaft; and a second set bolt threadedly connected to the frame.

[0004] As can be seen from the above, the problem of existing steel coil uncoiling machines not having good support functions has been solved. However, this case still has the following shortcomings: tension control relies on manually preset parameters and cannot be dynamically adjusted according to real-time tension changes during the steel coil uncoiling process. When the diameter of the steel coil decreases or the material changes, excessive tension may cause the steel plate to stretch and deform, or insufficient tension may cause the steel plate to wrinkle.

[0005] Therefore, an adaptive tension control steel coil uncoiling device is proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and the problem of inaccurate tension control during steel coil uncoiling, this utility model proposes an adaptive tension control steel coil uncoiling device.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The steel coil uncoiling device with adaptive tension control of this utility model includes a main body, and an adjustment component is provided on one side of the main body; the adjustment component includes a base, a second hydraulic cylinder is hinged to one side of the base, a second piston rod is movably installed at the output end of the second hydraulic cylinder, and a first rotating shaft is hinged to the other end of the second piston rod. The first rotating shaft is rotatably installed in the inner cavity of the base, and a movable frame is installed through and fixedly installed on the first rotating shaft. A contact roller is rotatably installed on one side of the movable frame.

[0008] Preferably, the adjustment assembly further includes a third hydraulic cylinder hinged to the inner cavity of the base. A third piston rod is movably mounted on the output end of the third hydraulic cylinder. A second rotating shaft is hinged to one end of the third piston rod. An adjustment frame is fixedly mounted through the second rotating shaft. The second rotating shaft is rotatably mounted in the inner cavity of the base. A tension sensor is fixedly mounted on the bottom of the adjustment frame.

[0009] Preferably, the main body includes a fixed frame, a torque motor is fixedly installed in the inner cavity of the fixed frame, a first sprocket is fixedly installed at the output end of the torque motor, a chain is meshed on the outer surface of the first sprocket, and a second sprocket is meshed on the other side of the chain.

[0010] Preferably, the second sprocket is connected to and fixedly mounted with a drive shaft, and a winding frame is fixedly mounted on the other side of the drive shaft. The drive shaft is rotatably mounted in the inner cavity of the fixed frame.

[0011] Preferably, a connecting frame is fixedly installed on one side of the fixed frame, and a first hydraulic cylinder is hinged to the inner cavity of the connecting frame. A first piston rod is movably installed at the output end of the first hydraulic cylinder.

[0012] Preferably, the other end of the first piston rod is hinged to a limiting shaft, and two limiting rods are fixedly installed through the limiting shaft.

[0013] The advantages of this utility model are: 1. This utility model, through the structural design of the adjustment component, enables the tension sensor to detect the uncoiling tension of the steel coil in real time and feed the signal back to the control system. The third hydraulic cylinder drives the adjustment frame to adjust the detection angle of the tension sensor to ensure accurate detection. At the same time, the second hydraulic cylinder dynamically adjusts the pressure applied to the steel coil through the contact roller, realizing real-time detection and dynamic adaptive adjustment of tension. This solves the problems of lagging tension control and insufficient accuracy in traditional devices, and improves the stability of steel coil uncoiling and the quality of steel plates. 2. Through the structural design of the main body, the first hydraulic cylinder drives the limiting rod to adjust the spacing according to the width of the steel coil to form an axial limit, which effectively prevents the steel coil from deviating during uncoiling; the torque motor, in conjunction with the sprocket drive, can adjust the output speed in real time according to the tension signal to achieve dynamic matching between the uncoiling speed and the tension, which solves the problem of poor adaptability of traditional devices to steel coils of different specifications and improves the versatility and automation level of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is an exploded view of the adjustment component structure of this utility model; Figure 4 This is an exploded view of the main structure of this utility model; Figure 5 For the present utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0016] In the diagram: 1. Main body; 2. Adjustment assembly; 11. Fixing frame; 12. Torque motor; 13. First sprocket; 14. Chain; 15. Second sprocket; 16. Drive shaft; 17. Unwinding frame; 18. Connecting frame; 19. First hydraulic cylinder; 21. Base; 22. Second hydraulic cylinder; 23. Second piston rod; 24. First rotating shaft; 25. Contact roller; 26. Second rotating shaft; 27. Third hydraulic cylinder; 28. Third piston rod; 29. ​​Adjustment frame; 31. Tension sensor; 32. Movable frame; 101. First piston rod; 102. Limiting shaft; 103. Limiting rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figures 1-5 As shown, an adaptive tension control steel coil uncoiling device includes a main body 1, and an adjustment component 2 is provided on one side of the main body 1. The adjustment component 2 includes a base 21, a second hydraulic cylinder 22 is hinged to one side of the base 21, a second piston rod 23 is movably mounted at the output end of the second hydraulic cylinder 22, and a first rotating shaft 24 is hinged to the other end of the second piston rod 23. The first rotating shaft 24 is rotatably mounted in the inner cavity of the base 21, and a movable frame 32 is fixedly mounted through the first rotating shaft 24. A contact roller 25 is rotatably mounted on one side of the movable frame 32. During operation, the second hydraulic cylinder 22 drives the second piston rod 23 to extend and retract, pushing the first rotating shaft 24 to rotate around the base 21. The movable frame 32 rotates synchronously with the first rotating shaft 24, so that the contact roller 25 is in contact with the surface of the steel coil. By adjusting the pressure of the contact roller 25, the tension of the steel coil when uncoiling is balanced.

[0019] Furthermore, the adjustment assembly 2 also includes a third hydraulic cylinder 27, which is hinged to the inner cavity of the base 21. A third piston rod 28 is movably mounted on the output end of the third hydraulic cylinder 27. A second rotating shaft 26 is hinged to one end of the third piston rod 28. An adjustment frame 29 is fixedly mounted through the second rotating shaft 26. The second rotating shaft 26 is rotatably mounted in the inner cavity of the base 21. A tension sensor 31 is fixedly mounted on the bottom of the adjustment frame 29. During operation, the tension sensor 31 detects the uncoiling tension of the steel coil in real time and transmits the signal to the control system. When the detection angle deviates, the third hydraulic cylinder 27 drives the third piston rod 28 to extend and retract, causing the adjusting frame 29 to rotate around the second rotating shaft 26, thereby adjusting the detection angle of the tension sensor 31 and ensuring accurate tension detection.

[0020] Furthermore, the main body 1 includes a fixed frame 11, a torque motor 12 is fixedly installed in the inner cavity of the fixed frame 11, a first sprocket 13 is fixedly installed at the output end of the torque motor 12, a chain 14 is meshed on the outer surface of the first sprocket 13, and a second sprocket 15 is meshed on the other side of the chain 14. During operation, the torque motor 12 starts, driving the first sprocket 13 to rotate, which in turn drives the second sprocket 15 to rotate via the chain 14, providing power for uncoiling the steel coil. The output speed can be adjusted according to the tension signal to achieve tension and speed matching.

[0021] Furthermore, the second sprocket 15 is through and fixedly mounted with a drive shaft 16, and a winding rack 17 is fixedly mounted on the other side of the drive shaft 16. The drive shaft 16 is rotatably mounted in the inner cavity of the fixed frame 11. During operation, the drive shaft 16 rotates with the second sprocket 15 and drives the steel coil to unwind. The unwinding frame 17 provides radial support to the drive shaft 16, reducing shaking during rotation and ensuring a smooth unwinding process.

[0022] Furthermore, a connecting frame 18 is fixedly installed on one side of the fixed frame 11, and a first hydraulic cylinder 19 is hinged to the inner cavity of the connecting frame 18. A first piston rod 101 is movably installed at the output end of the first hydraulic cylinder 19. During operation, the first hydraulic cylinder 19 drives the first piston rod 101 to extend and retract, providing power for the angle adjustment of the limit rod 103 to adapt to the limit requirements of steel coils of different widths.

[0023] Furthermore, the other end of the first piston rod 101 is hinged to a limiting shaft 102, and two limiting rods 103 are fixedly installed through the limiting shaft 102. During operation, the limiting shaft 102 rotates with the first piston rod 101, driving the two limiting rods 103 to adjust their spacing synchronously, fitting the two ends of the steel coil to form an axial limit, preventing the steel coil from shifting axially when uncoiling.

[0024] Working principle: The steel coil is installed on the unwinding frame 17. The first hydraulic cylinder 19 is started, which drives the limiting shaft 102 to rotate through the first piston rod 101. This causes the two limiting rods 103 to adjust to a suitable distance according to the width of the steel coil, thus completing the axial positioning. The torque motor 12 drives the transmission shaft 16 to rotate through the sprocket transmission, which drives the steel coil to start unwinding. During the unwinding process, the tension sensor 31 detects the tension in real time and feeds back the signal. The third hydraulic cylinder 27 adjusts the angle of the tension sensor 31 to ensure accurate detection. At the same time, the second hydraulic cylinder 22 dynamically adjusts the applied pressure through the contact roller 25 to balance the tension. The control system adjusts the speed of the torque motor 12 according to the tension signal to achieve real-time matching between the unwinding speed and the tension, ensuring that the steel coil unwinds stably and without damage.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adaptive tension-controlled steel coil uncoiling device, comprising a main body (1), characterized in that: An adjustment assembly (2) is provided on one side of the main body (1); the adjustment assembly (2) includes a base (21), a second hydraulic cylinder (22) is hinged to one side of the base (21), a second piston rod (23) is movably installed at the output end of the second hydraulic cylinder (22), a first rotating shaft (24) is hinged to the other end of the second piston rod (23), the first rotating shaft (24) is rotatably installed in the inner cavity of the base (21), the first rotating shaft (24) passes through and is fixedly installed with a movable frame (32), and a contact roller (25) is rotatably installed on one side of the movable frame (32).

2. The adaptive tension control steel coil uncoiling device according to claim 1, characterized in that: The adjustment assembly (2) also includes a third hydraulic cylinder (27), which is hinged to the inner cavity of the base (21). A third piston rod (28) is movably installed at the output end of the third hydraulic cylinder (27). A second rotating shaft (26) is hinged to one end of the third piston rod (28). An adjustment frame (29) is fixedly installed through the second rotating shaft (26). The second rotating shaft (26) is rotatably installed in the inner cavity of the base (21). A tension sensor (31) is fixedly installed at the bottom of the adjustment frame (29).

3. The adaptive tension control steel coil uncoiling device according to claim 1, characterized in that: The main body (1) includes a fixed frame (11), a torque motor (12) is fixedly installed in the inner cavity of the fixed frame (11), a first sprocket (13) is fixedly installed at the output end of the torque motor (12), a chain (14) is meshed on the outer surface of the first sprocket (13), and a second sprocket (15) is meshed on the other side of the chain (14).

4. The adaptive tension control steel coil uncoiling device according to claim 3, characterized in that: The second sprocket (15) has a drive shaft (16) that is fixedly installed through it. A winding rack (17) is fixedly installed on the other side of the drive shaft (16). The drive shaft (16) is rotatably installed in the inner cavity of the fixed frame (11).

5. The adaptive tension control steel coil uncoiling device according to claim 4, characterized in that: A connecting frame (18) is fixedly installed on one side of the fixed frame (11). A first hydraulic cylinder (19) is hinged to the inner cavity of the connecting frame (18). A first piston rod (101) is movably installed at the output end of the first hydraulic cylinder (19).

6. The adaptive tension control steel coil uncoiling device according to claim 5, characterized in that: The other end of the first piston rod (101) is hinged to a limiting shaft (102), and the limiting shaft (102) is through which two limiting rods (103) are fixedly installed.

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