Uncoiler winding drum structure capable of being finely adjusted

By using a support frame and a servo motor-driven fine-tuning structure, the problem of inaccurate drum positioning in the uncoiler was solved, achieving precise drum positioning and stable winding, thus improving production efficiency and product quality.

CN224128260UActive Publication Date: 2026-04-17GUANGZHOU JINJI METAL MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU JINJI METAL MFG CO LTD
Filing Date
2025-01-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the uncoiling machine drum cannot be automatically fine-tuned, resulting in inaccurate drum position, which affects winding quality and efficiency.

Method used

The design employs a support frame, a fine-tuning structure, and a servo motor. It achieves precise positioning and stable clamping of the drum through a two-way lead screw and an electric telescopic rod, and utilizes a servo motor to drive precise adjustment of the drum position.

Benefits of technology

It achieves multi-dimensional precise positioning of the roll, ensuring a stable winding process, reducing material waste, and improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224128260U_ABST
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Abstract

The utility model relates to the technical field of uncoilers, in particular to an uncoiler winding drum structure capable of being finely adjusted. A winding drum winding structure for rotating and uncoiling is assembled on the winding drum; four fine adjustment structures are annularly assembled on the outer side of the winding drum winding structure at equal intervals. The winding drum winding structure comprises a driving rod rotationally installed on the inner wall of the supporting rack, the driving rod is integrally and fixedly provided with a winding machine rod, and extending grooves are formed in the positions, corresponding to the four fine adjustment structures, of the outer side of the winding machine rod. After the winding drum is placed on the fine adjustment structure, the electric telescopic rod is matched with the third servo motor to achieve accurate control over the position of the winding drum. The electric telescopic rod firstly extends the fine adjustment plate to the outer side of the positioning groove, then the third servo motor drives the second bidirectional lead screw to drive the fine adjustment plate to move, it is guaranteed that the winding drum is accurately located in the middle of the fine adjustment arc plate, the winding drum is effectively prevented from deviating or shaking in the winding process, and the winding quality is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of uncoiler technology, specifically to an adjustable uncoiler drum structure. Background Technology

[0002] In the uncoiling process of cold-rolled strip steel, the steel coil is first transported to the uncoiler drum by the upper coiling trolley. The drum is then expanded by a rotating hydraulic cylinder that drives the sleeve and sector plates to slide along the inclined plane; the uncoiler then uncoils the coil. Chinese patent (authorization announcement number CN205833870U) discloses an uncoiler drum structure, which includes several sector plates arranged in a cylindrical shape. An arc-shaped plate is fixed to the end face of each sector plate. The arc-shaped plate includes a horizontally oriented arc plate and a vertically oriented arc plate. The arc-shaped plate is fixedly attached to the end face of the sector plate, and the arc plate is fixedly attached to the outer surface of the sector plate. This utility model, by redesigning the arc plate, eliminates bolt breakage in the modified uncoiler drum. This invention significantly reduces modification costs and achieves very satisfactory results. This patented technology solves the problem that during the uncoiling process of an uncoiler, the drum is always kept under tension, and the arc plate is subjected to large forces. The original drum arc plate was fixed to the rear section of the sector plate with 4-M20 bolts. During use, the connecting bolts often broke, making the sector plate unable to expand or contract. At the same time, the sector plate would also suffer varying degrees of damage and would not work properly.

[0003] However, in the existing technology, the position of the original roll on the uncoiler cannot be finely adjusted after it is placed. It is necessary to solve the problem that the position of the original roll on the uncoiler can be automatically finely adjusted in the existing technology.

[0004] Therefore, those skilled in the art have provided a finely adjustable uncoiler drum structure to solve the problems mentioned in the background art. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides:

[0006] An adjustable uncoiler drum structure, comprising:

[0007] Support frame; equipped with a rotating unwinding and rewinding structure;

[0008] The outer side of the winding structure is equipped with four fine-tuning structures in a ring at equal intervals.

[0009] The winding structure includes an active rod rotatably mounted on the inner wall of the support frame. The active rod is fixedly equipped with a winding rod, and an extension groove is provided on the outer side of the winding rod corresponding to the positions of the four fine-tuning structures. A bidirectional lead screw is rotatably mounted on the inner side of the extension groove.

[0010] Both ends of the bidirectional lead screw are equipped with bidirectional screw blocks that are movably located inside the extension groove. An inclined rod is rotatably mounted on the inner side of the bidirectional screw block, and an assembly shaft block is rotatably mounted on the outer side of the inclined rod away from the bidirectional screw block.

[0011] Preferably, the fine-tuning structure includes a fine-tuning arc plate fixedly installed on the outer wall of the assembly shaft block, and the outer wall of the fine-tuning arc plate is provided with a positioning groove.

[0012] Preferably, a bidirectional lead screw is rotatably installed inside the positioning groove, and bidirectional screw blocks are provided at both ends of the outer side of the bidirectional lead screw.

[0013] Preferably, the bidirectional screw block is externally equipped with several electric telescopic rods, and the output end of the electric telescopic rods is fitted with a fine-tuning plate located outside the bidirectional screw block.

[0014] Preferably, one end of the bidirectional lead screw 2 rotates through the outside of the positioning groove and is connected to a servo motor 3.

[0015] Preferably, one end of the bidirectional lead screw rotates through the outside of the winding rod, and a gear ring is fixedly mounted on the outer wall. The gear ring meshes with a gear, and the gear is connected to a servo motor that is fixedly installed inside the drive rod.

[0016] Preferably, a servo motor is fixedly mounted on the side frame and connected to the outside of the active rod.

[0017] A controller is installed on the outer wall of the side frame.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] This invention features multi-dimensional precise positioning: after the drum is placed in the fine-tuning structure, the electric telescopic rod and the servo motor work together to achieve precise control of the drum's position. The electric telescopic rod first extends the fine-tuning plate to the outside of the positioning groove, and then the servo motor drives the bidirectional lead screw to move the fine-tuning plate, ensuring that the drum is precisely located in the center of the fine-tuning arc plate, effectively preventing the drum from shifting or shaking during winding and ensuring winding quality.

[0020] This invention features a stable and reliable winding process: a precise positioning mechanism lays a solid foundation for the winding operation, ensuring the drum remains stable throughout the winding process. When the servo motor drives the winding rod to wind, the accurate positioning of the drum guarantees a smooth and neat winding process, reducing material waste and improving production efficiency and product quality. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an adjustable uncoiler drum structure provided in this application;

[0022] Figure 2 This is a front structural diagram of a finely adjustable uncoiler drum structure provided in this application;

[0023] Figure 3 This is a schematic diagram of the split structure in a finely adjustable uncoiler drum structure provided in this application;

[0024] Figure 4 This is a schematic diagram of the winding structure of a finely adjustable uncoiler drum structure provided in this application;

[0025] Figure 5 This is a schematic diagram of the fine-tuning structure in a finely adjustable uncoiler drum structure provided in this application.

[0026] In the picture:

[0027] 1. Support frame;

[0028] 2. Drum winding structure; 201. Drive rod; 202. Servo motor one; 203. Winding rod; 204. Extension groove; 205. Two-way lead screw one; 206. Two-way screw block; 207. Inclined rod; 208. Assembly shaft block; 209. Gear ring; 210. Gear; 211. Servo motor two;

[0029] 3. Fine-tuning structure; 301. Fine-tuning arc plate; 302. Positioning groove; 303. Two-way lead screw II; 304. Servo motor III; 305. Two-way screw shifting block; 306. Electric telescopic rod; 307. Fine-tuning plate;

[0030] 4. Side frame; 5. Controller. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The examples of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0032] For examples, please refer to Figures 1-5 In this embodiment, an adjustable unwinding machine drum structure is provided, including: a support frame 1; a drum winding structure 2 for rotating unwinding is mounted on the frame; and four fine-tuning structures 3 are mounted in a ring at equal intervals on the outer side of the drum winding structure 2.

[0033] The winding structure 2 includes an active rod 201 rotatably mounted on the inner wall of the support frame 1. The active rod 201 is fixedly mounted with a winding rod 203. An extension groove 204 is provided on the outer side of the winding rod 203 corresponding to the positions of the four fine-tuning structures 3. A bidirectional lead screw 205 is rotatably mounted on the inner side of the extension groove 204.

[0034] Both ends of the bidirectional lead screw 205 are provided with bidirectional screw blocks 206 that are movably located inside the extension groove 204. An inclined rod 207 is rotatably mounted inside the bidirectional screw block 206. An assembly shaft block 208 is rotatably mounted on the outer side of the inclined rod 207 away from the bidirectional screw block 206.

[0035] The inner wall of the extension groove 204 is provided with a radial guide structure (not shown in the figure), such as a guide groove or guide rail. The middle part of the inclined rod 207 has an inclined working surface, which slides in cooperation with the guide structure. When the servo motor 211 drives the bidirectional lead screw 205 to rotate, causing the two bidirectional screw blocks 206 to move towards each other, the inclined rod 207, under the constraint of the guide structure, generates a radially outward component force on its inclined working surface. This force, through the assembly shaft block 208, pushes the fine-tuning arc plate 301 to move radially outward along the winding rod 203, thereby expanding the diameter. Conversely, when the bidirectional screw blocks 206 move in opposite directions, under the action of a reset mechanism (such as a spring, not shown in the figure) or gravity, the fine-tuning arc plate 301 resets inward, thereby reducing the diameter.

[0036] The fine-tuning structure 3 includes a fine-tuning arc plate 301 fixedly installed on the outer wall of the assembly shaft block 208, and a positioning groove 302 is provided on the outer wall of the fine-tuning arc plate 301. A two-way lead screw 303 is rotatably installed inside the positioning groove 302, and two-way screw shifting blocks 305 are provided at both ends of the outer side of the two-way lead screw 303. Several electric telescopic rods 306 are assembled on the outside of the two-way screw shifting blocks 305, and a fine-tuning plate 307 is sleeved on the output end of the electric telescopic rods 306 and located outside the two-way screw shifting blocks 305.

[0037] The fine-tuning arc plate 301 is a plate with an arc-shaped outer surface, whose arc surface is used to fit and support the inner wall of the drum. An elongated positioning groove 302 is formed along the axial direction of the outer wall of the fine-tuning arc plate 301. The bidirectional lead screw 303 is rotatably mounted at both ends of the positioning groove 302 via bearings. The bidirectional screw block 305 has a threaded hole in its center that mates with the bidirectional lead screw 303, and several electric telescopic rods 306 are fixedly mounted on its outer side. The fine-tuning plate 307 is an arc-shaped clamping plate, whose inner side is fixedly connected to the piston rod end of the electric telescopic rod 306, and whose outer side is used to contact the drum. The fine-tuning plate 307 can move radially along the depth direction of the positioning groove 302 as the electric telescopic rods 306 extend and retract.

[0038] One end of the bidirectional lead screw 203 rotatably passes through the outside of the positioning groove 302 and is connected to a servo motor 304. One end of the bidirectional lead screw 205 rotatably passes through the outside of the winding rod 203, and a gear ring 209 is fixedly mounted on its outer wall. The gear ring 209 meshes with a gear 210, and the gear 210 is connected to a servo motor 211 fixedly installed inside the drive rod 201. A servo motor 202 is fixedly installed on the side frame 4 and connected to the outside of the drive rod 201. A controller 5 is installed on the outer wall of the side frame 4.

[0039] According to the above embodiments, the working principle of this invention is as follows:

[0040] When the drum is being wound up, the drum can be placed outside the fine-tuning structure 3, or when the steel coil is being wound up, one end of the steel coil can be placed between the two fine-tuning structures 3 for clamping, and then wound up through the drum winding structure 2.

[0041] The winding structure 2, combined with the fine-tuning structure 3, can be used to position drums with different inner diameter specifications.

[0042] When servo motor 211 is started, it drives gear 210 to rotate. Gear 210 meshes with gear ring 209, which drives bidirectional lead screw 205 to rotate. After bidirectional lead screw 205 rotates inside extension groove 204, it can drive bidirectional screw block 206 inside, causing bidirectional screw block 206 to push inclined rod 207 to extend outward. The extended inclined rod 207 pushes fine-tuning arc plate 301 outward, which can expand the inner diameter of fine-tuning structure 3 for drum assembly, which is conducive to drum fixing.

[0043] After the drum is placed on the fine-tuning structure 3, the electric telescopic rod 306 is first activated. The electric telescopic rod 306 extends the fine-tuning plate 307 to the outside of the positioning groove 302. After the servo motor 304 is activated, the servo motor 304 drives the bidirectional lead screw 303 to rotate. The bidirectional lead screw 303 moves the fine-tuning plate 307 on the bidirectional screw block 305, thereby positioning the drum placed on the fine-tuning structure 3 to the middle position of the fine-tuning arc plate 301.

[0044] Start the servo motor 202. The servo motor 202 drives the winding rod 203 via the drive rod 201 to perform the winding operation.

[0045] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A tunable pay-off reel structure, characterized in that, include: Support frame (1); equipped with a rotating unwinding drum winding structure (2); The outer side of the winding structure (2) is equipped with four fine-tuning structures (3) in a ring at equal intervals; The winding structure (2) includes an active rod (201) rotatably mounted on the inner wall of the support frame (1), the active rod (201) is fixedly mounted with a winding rod (203), and an extension groove (204) is provided on the outer side of the winding rod (203) corresponding to the positions of the four fine adjustment structures (3), and a bidirectional lead screw (205) is rotatably mounted on the inner side of the extension groove (204). Both ends of the bidirectional lead screw (205) are provided with bidirectional screw blocks (206) that are movably located inside the extension groove (204). An inclined rod (207) is rotatably mounted inside the bidirectional screw block (206). An assembly shaft block (208) is rotatably mounted on the outer side of the inclined rod (207) away from the bidirectional screw block (206).

2. A tunable pay-off reel structure according to claim 1, characterized in that The fine-tuning structure (3) includes a fine-tuning arc plate (301) fixedly installed on the outer wall of the assembly shaft block (208), and the outer wall of the fine-tuning arc plate (301) is provided with a positioning groove (302).

3. A tunable pay-off reel structure according to claim 2, characterized in that A two-way lead screw (303) is rotatably mounted inside the positioning groove (302), and two-way screw blocks (305) are provided at both ends of the outer side of the two-way lead screw (303) for helical transmission.

4. The adjustable uncoiler drum structure according to claim 3, characterized in that, The bidirectional screw block (305) is externally equipped with several electric telescopic rods (306), and the output end of the electric telescopic rods (306) is fitted with a fine-tuning plate (307) located outside the bidirectional screw block (305).

5. A tunable pay-off reel structure according to claim 3, characterized in that One end of the bidirectional lead screw (303) rotates through the outside of the positioning groove (302) and is connected to the servo motor (304).

6. A tunable pay-off reel structure according to claim 1, characterized in that One end of the bidirectional lead screw (205) rotates through the outside of the winding rod (203), and a gear ring (209) is fixedly mounted on the outer wall. The gear ring (209) meshes with a gear (210), and the gear (210) is connected to a servo motor (211) fixedly installed inside the drive rod (201).

7. A tunable pay-off reel structure according to claim 6, characterized in that The active rod (201) is connected to a servo motor (202) that is fixedly mounted on the side frame (4).

Citation Information

Patent Citations

  • Uncoiler drum structure

    CN205833870U