A steel coil unwinding device

Abstract

This utility model provides a steel coil unwinding device, including a support, a motor disposed on one side of the support, and a roller disposed on the other side of the support, with the motor and the roller being connected by transmission. It also includes a radial adjustment assembly disposed on the roller, comprising grooves arranged in a ring on the outer surface of the roller, a top plate slidably connected to the interior of each groove, and a pushing structure disposed inside the roller for adjusting the distance between the top plate and the roller axis. A pressing assembly is disposed above the roller to press the steel coil to prevent it from loosening due to excessive tension. Through the cooperation of the roller and the radial adjustment assembly, the distance between the top plate and the roller axis can be quickly adjusted according to the difference in the diameter of the inner core of the steel coil, allowing the outer surface of the top plate to fit tightly against the inner wall of the inner core of the steel coil. This achieves matching for steel coils with different inner core diameters without requiring operators to stop the machine to disassemble and replace the rotating roller, further improving the efficiency of steel coil unwinding.

Description

Technical Field

[0001] This utility model relates to the technical field of steel coil unwinding and winding equipment, and in particular to a steel coil unwinding device. Background Technology

[0002] In the steel processing industry, the steel coil unwinding device is the core hub equipment of the production line. It undertakes the key task of smoothly unwinding tightly wound coiled steel through precisely controlled rotation and traction actions, with stable tension and constant speed, and accurately conveying it to subsequent processing steps such as cold rolling, galvanizing, and shearing. Its performance directly affects the accuracy, efficiency and product quality of steel processing.

[0003] Current steel coil unwinding devices typically involve placing the steel coil around the rotating rollers of the unwinding device. However, since steel coils of different thicknesses have different internal core diameters during winding, the rotating rollers on existing unwinding devices are generally designed with a fixed diameter, making them unsuitable for cores of different diameters. When unwinding steel coils of different thicknesses is required, operators must stop the machine to disassemble and replace the rotating rollers. This process not only consumes a lot of time and manpower but also further affects the efficiency of steel coil unwinding. Therefore, we provide a steel coil unwinding device. Utility Model Content

[0004] This utility model provides a steel coil unwinding device that can quickly adjust the outer diameter of the rotating roller according to the difference in the diameter of the core cylinder inside the steel coil, so as to achieve precise matching with the core cylinder. This eliminates the need for operators to stop the machine to disassemble and replace the rotating roller, further improving the efficiency of steel coil unwinding.

[0005] The purpose and effect of this utility model of a steel coil unwinding device are achieved by the following specific technical means: A steel coil unwinding device includes a support, a motor disposed on one side of the support, and a roller disposed on the other side of the support, wherein the motor and the roller are connected by a transmission connection, and further includes:

[0006] A radial adjustment assembly is provided on the roller body, including grooves arranged in a ring on the outer surface of the roller body, a top plate slidably connected to the inside of each groove, and a push structure provided inside the roller body for adjusting the distance between the top plate and the roller body axis.

[0007] The pressing assembly, located above the roller, is used to press the steel coil to prevent it from loosening due to excessive tension.

[0008] The limiting component, located outside the roller body, is used to block one side of the steel coil to prevent axial movement or detachment of the steel coil during unwinding.

[0009] Preferably, the pushing structure of the radial adjustment assembly includes a positive and negative threaded rod rotatably connected to the inner wall of the roller body. The outer surface of the positive and negative threaded rod is threaded with a set of threaded collars. The outer surface of each threaded collar is hinged with a ring-shaped push plate. The other end of each push plate is hinged to the inner side of the top plate.

[0010] Preferably, each of the threaded collars has a ring of positioning rods fixedly connected to its outer surface, each positioning rod has a positioning frame slidably connected to its outer surface, and the other side of each positioning frame is connected to the inner wall of the roller.

[0011] Preferably, a reinforcing ring is rotatably connected to the outer surface of the positive and negative threaded rod, and a ring-shaped support column is fixedly connected to the outer surface of the reinforcing ring, with the other end of each support column connected to the inner wall of the roller body.

[0012] Preferably, one end of the positive and negative threaded rod extends to the outside of the roller body and is fixedly connected to a handle, and an anti-slip sleeve is provided on the outside of the handle.

[0013] Preferably, the pressing assembly includes a hanging plate disposed above the roller body, a set of sliding columns are slidably connected to the upper surface of the hanging plate, a holding block is fixedly connected to the bottom surface of each sliding column, a spring is sleeved on the outside of each sliding column, and a pressing roller is rotatably connected to the side of two holding blocks that are close to each other.

[0014] Preferably, an electric push rod is installed on the bottom surface of the hanging plate, and the bottom end of the electric push rod is connected to the top end of the support.

[0015] Preferably, the top ends of the two sliding columns are fixedly connected to a limiting plate.

[0016] Preferably, the limiting component includes a connecting ring sleeved on the outside of the roller body, and the outer surface of the connecting ring is fixedly connected with a ring of blocking plates.

[0017] Preferably, the outer surface of the connecting ring is threaded with a ring of fastening pins, one end of each fastening pin being in contact with the outer surface of the roller.

[0018] Beneficial effects:

[0019] 1. By cooperating with the set roller body and radial adjustment component, the distance between the top plate and the roller body axis can be quickly adjusted according to the difference in the diameter of the inner core of the steel coil. This allows the outer surface of the top plate to fit tightly with the inner wall of the inner core of the steel coil, thus completing the matching of steel coils with different inner core diameters. There is no need for staff to stop the machine to disassemble and replace the rotating roller, further improving the efficiency of unwinding the steel coil.

[0020] 2. The set holding components can apply holding force to the steel coil, which can prevent the steel coil from loosening due to excessive tension, thus ensuring the smooth operation of the steel coil unwinding. The set limiting components continuously provide lateral restraint force during the rotation of the steel coil, effectively preventing the steel coil from axial movement due to vibration or inertia during high-speed unwinding, and can prevent the steel coil from falling off the roller. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is an exploded structural diagram of the roller body of this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the positive and negative threaded rod of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the threaded collar of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the pressing component of this utility model.

[0026] Figure 6 This is a three-dimensional structural diagram of the limiting component of this utility model.

[0027] Figure 1-6 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0028] 1. Support; 2. Motor; 3. Roller body; 4. Radial adjustment assembly; 401. Tank body; 402. Top plate; 403. Positive and negative threaded rods; 404. Threaded collar; 405. Push plate; 406. Positioning rod; 407. Positioning frame; 408. Reinforcing ring; 409. Support column; 410. Turning handle; 5. Holding assembly; 501. Hanging plate; 502. Sliding column; 503. Hanging block; 504. Spring; 505. Holding roller; 506. Electric push rod; 507. Limiting plate; 6. Limiting assembly; 601. Connecting ring; 602. Blocking plate; 603. Fastening pin. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] First Embodiment

[0031] As attached Figure 1 To be continued Figure 4 As shown: A steel coil unwinding device includes a support 1, a motor 2 disposed on one side of the support 1 and a roller 3 disposed on the other side of the support 1, and the motor 2 and the roller 3 are connected by transmission. The operation of the motor 2 can drive the roller 3 to rotate, and the rotation of the roller 3 can drive the steel coil outside it to unwind.

[0032] A radial adjustment assembly 4, disposed on the roller body 3, includes grooves 401 arranged in a ring on the outer surface of the roller body 3, a top plate 402 slidably connected inside each groove 401, and a pushing structure disposed inside the roller body 3 for adjusting the distance between the top plate 402 and the axis of the roller body 3. The pushing structure of the radial adjustment assembly 4 includes a positive and negative threaded rod 403 rotatably connected to the inner wall of the roller body 3. A set of threaded collars 404 are threadedly connected to the outer surface of the positive and negative threaded rod 403. Each threaded collar 404 has a push plate 405 arranged in a ring hinged to the outer surface of its outer surface. The other end of each push plate 405 is hinged to the inner side of the top plate 402. By rotating the positive and negative threaded rod 403, the two threaded collars 404 will move on the positive and negative threaded rod 403. Moving in the opposite direction, the top of the push plate 405 gradually moves outward from the roller body 3, thereby pushing the top plate 402 to move smoothly outward along the direction of the groove 401, gradually increasing the distance between the top plate 402 and the axis of the roller body 3 until the distance between the top plate 402 and the axis of the roller body 3 is adjusted to match the diameter of the inner core of the steel coil. This allows for quick matching of steel coils with different inner core diameters without requiring workers to stop the machine to disassemble and replace the roller body 3, further improving the efficiency of unwinding the steel coil. One end of the positive and negative threaded rod 403 extends to the outside of the roller body 3 and is fixedly connected to a handle 410. The handle 410 is equipped with an anti-slip sleeve on its outside, allowing workers to rotate the positive and negative threaded rod 403 more quickly using the handle 410.

[0033] Each threaded collar 404 has a fixedly connected annularly arranged positioning rod 406 on its outer surface, and a slidably connected positioning frame 407 on the outer surface of each positioning rod 406. The other side of each positioning frame 407 is connected to the inner wall of the roller body 3. The cooperation between the positioning frame 407 and the positioning rod 406 can stabilize the threaded collar 404, thereby ensuring its smooth movement. The outer surface of the positive and negative threaded rods 403 is rotatably connected to a reinforcing ring 408, and the outer surface of the reinforcing ring 408 is fixedly connected to annularly arranged support columns 409. The other end of each support column 409 is connected to the inner wall of the roller body 3. The cooperation between the reinforcing ring 408 and the support column 409 can further connect the positive and negative threaded rods 403 to the roller body 3, thereby improving the firmness of the positive and negative threaded rods 403.

[0034] Second Embodiment

[0035] As attached Figure 1 With appendix Figure 5 As shown: The pressing assembly 5, located above the roller body 3, is used to press the steel coil to prevent it from loosening due to excessive tension. The pressing assembly 5 includes a hanging plate 501 located above the roller body 3. A set of sliding columns 502 are slidably connected to the upper surface of the hanging plate 501. A holding block 503 is fixedly connected to the bottom surface of each sliding column 502. A spring 504 is sleeved on the outside of each sliding column 502. The pressing roller 505 is rotatably connected to the side of two holding blocks 503 that are close to each other. The extension and contraction of the spring 504 can push the holding block 503, which in turn drives the pressing roller 505. The lowering mechanism is designed to fit snugly against the steel coil, preventing it from loosening due to excessive tension. An electric push rod 506 is installed on the bottom surface of the hanging plate 501, with its bottom end connected to the top end of the support 1. The electric push rod 506 can stabilize the hanging plate 501 and the pressure roller 505, and can also adjust the height of the pressure roller 505, making it convenient for workers to place the steel coil on the outside of the roller body 3. The top ends of the two sliding columns 502 are fixedly connected to a limit plate 507, which can limit the movement of the sliding columns 502 to prevent them from detaching from the hanging plate 501.

[0036] Third Embodiment

[0037] As attached Figure 1 With appendix Figure 6 As shown: The limiting component 6 is disposed outside the roller body 3 and is used to block one side of the steel coil to prevent axial movement or detachment of the steel coil during unwinding. The limiting component 6 includes a connecting ring 601 sleeved outside the roller body 3. The outer surface of the connecting ring 601 is fixedly connected with a ring-shaped arrangement of blocking plates 602. By sleeved outside the roller body 3, the blocking plates 602 continuously provide lateral restraint force to the steel coil during rotation, effectively preventing axial movement of the steel coil due to vibration or inertia during high-speed unwinding, and preventing the steel coil from falling off the roller body 3. The outer surface of the connecting ring 601 is threaded with a ring-shaped arrangement of fastening nails 603. One end of each fastening nail 603 is in contact with the outer surface of the roller body 3. By rotating the fastening nail 603, it can be held against the outside of the roller body 3, thereby further reinforcing the connecting ring 601 and enhancing the stability of the blocking plates 602, so that the blocking plates 602 can stably and continuously provide lateral restraint force to the steel coil.

[0038] Working principle: When the diameter of the inner core of the steel coil to be unwound is larger than the outer diameter of the roller body 3, the operator can rotate the handle 410. The rotation of the handle 410 will drive the positive and negative threaded rods 403 to rotate synchronously. As the positive and negative threaded rods 403 rotate, the two threaded collars 404 will move in opposite directions on the positive and negative threaded rods 403. During the movement of the threaded collars 404, the bottom end of the push plate 405 will be pushed to move accordingly. The top end of the push plate 405 will gradually move outward of the roller body 3, thereby pushing the top plate 402 to move smoothly outward along the direction of the groove 401, gradually increasing the distance between the top plate 402 and the axis of the roller body 3 until the distance between the top plate 402 and the axis of the roller body 3 is adjusted to match the diameter of the inner core of the steel coil. This allows for the quick matching of steel coils with different inner core diameters without the need for the operator to stop the machine to disassemble and replace the roller body 3, further improving the efficiency of unwinding the steel coil.

Claims

1. A steel coil unwinding device, comprising a support (1), a motor (2) arranged on one side of the support (1) and a roller body (3) arranged on the other side of the support (1), and the motor (2) and the roller body (3) are drivingly connected, characterized in that, Also includes: The radial adjustment assembly (4) is disposed on the roller body (3) and includes grooves (401) arranged in a ring on the outer surface of the roller body (3), a top plate (402) slidably connected inside each groove (401), and a push structure disposed inside the roller body (3) for adjusting the distance between the top plate (402) and the axis of the roller body (3). The pressing assembly (5) is located above the roller body (3) and is used to press the steel coil to prevent it from becoming loose due to excessive tension. The limiting component (6) is located outside the roller body (3) and is used to block one side of the steel coil to prevent the steel coil from moving axially or falling off during the unwinding process.

2. The steel coil unwinding apparatus according to claim 1, characterized by: The radial adjustment assembly (4) has a pushing structure including a positive and negative threaded rod (403) rotatably connected to the inner wall of the roller body (3). The outer surface of the positive and negative threaded rod (403) is threaded with a set of threaded collars (404). The outer surface of each threaded collar (404) is hinged with a ring-shaped push plate (405). The other end of each push plate (405) is hinged to the inner side of the top plate (402).

3. The steel coil unwinding apparatus according to claim 2, characterized in that: Each of the threaded collars (404) has a fixedly connected ring-shaped positioning rod (406) on its outer surface, and a slidably connected positioning frame (407) on the outer surface of each positioning rod (406). The other side of each positioning frame (407) is connected to the inner wall of the roller body (3).

4. The steel coil unwinding apparatus according to claim 2, characterized by: The outer surface of the positive and negative threaded rod (403) is rotatably connected to a reinforcing ring (408), and the outer surface of the reinforcing ring (408) is fixedly connected to a ring-shaped column (409), the other end of each column (409) being connected to the inner wall of the roller body (3).

5. The steel coil unwinding apparatus according to claim 2, characterized by: One end of the positive and negative threaded rod (403) extends to the outside of the roller body (3) and is fixedly connected to a handle (410), and an anti-slip sleeve is provided on the outside of the handle (410).

6. The steel coil unwinding apparatus according to claim 1, characterized by: The pressing assembly (5) includes a hanging plate (501) disposed above the roller body (3). A set of sliding columns (502) are slidably connected to the upper surface of the hanging plate (501). A holding block (503) is fixedly connected to the bottom surface of each sliding column (502). A spring (504) is sleeved on the outside of each sliding column (502). The two holding blocks (503) are rotatably connected to the pressing roller (505) on their sides that are close to each other.

7. The steel coil unwinding apparatus according to claim 6, characterized in that: An electric push rod (506) is installed on the bottom surface of the hanging plate (501), and the bottom end of the electric push rod (506) is connected to the top end of the support (1).

8. The steel coil unwinding apparatus according to claim 6, characterized in that: The top ends of the two sliding columns (502) are fixedly connected to a limiting plate (507).

9. The steel coil unwinding apparatus of claim 1, wherein: The limiting component (6) includes a connecting ring (601) sleeved on the outside of the roller body (3), and the outer surface of the connecting ring (601) is fixedly connected with a ring of blocking plates (602).

10. The steel coil unwinding apparatus according to claim 9, characterized in that: The outer surface of the connecting ring (601) is threaded with a ring of fastening pins (603), one end of each fastening pin (603) is in contact with the outer surface of the roller body (3).

Images