Electrical steel strip rewinding device

Abstract

The utility model provides an electrical steel strip rewinding device, and belongs to the technical field of electrical steel strip production. Comprising a rewinding support arranged at the tail end of a steel belt machining assembly line, a first connecting arm is hinged to the top of the rewinding support, a fixed claw is fixedly arranged at the bottom end of the first connecting arm, rollers are rotationally arranged at the end of the fixed claw and the end of a movable claw, and a rewinding belt is wound between the two rollers; a feeding hole is formed between the end part of the fixed claw and the movable end of the movable claw; the movable end of the movable claw is provided with a push plate parallel to the width direction of the steel belt, the second driving piece drives the movable end of the movable claw to move towards the winding drum so that the push plate can be close to the outer wall of the winding drum, and the push plate obliquely extends into the feeding port and is close to the fixed claw. When the end of the steel belt enters the feeding port again, under the pushing action of the push plate, the movable end of the steel belt is kept in the state of being flatly attached to the winding drum as much as possible when being wound on the winding drum by one circle, the finally rewound steel coil is flat, and the effect of improving the quality of the produced steel coil is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electrical steel strip production technology, and in particular to an electrical steel strip rewinding device. Background Technology

[0002] Electrical steel, also known as silicon steel sheet, is an essential soft magnetic alloy for power, electronics, and industry, primarily used as the core of various motors, generators, and transformers. In production, electrical steel is typically produced in strip form to facilitate continuous operations of rolling, cleaning, heating, coating, and coating sintering processes, thereby increasing output.

[0003] After the electrical steel strip is processed, it needs to be rewound into a coil for easy handling and transportation. Existing factory rewinding equipment uses multiple circularly distributed rewinding rollers and belts to rewind the electrical steel strip. During rewinding, the equipment needs to leave an inlet for the steel strip to enter the drum between the drum and the belt. However, the ends of the steel strip are flexible, and the movable end tends to spring back at the inlet, making it difficult for the movable end to maintain a consistent fit with the drum. Furthermore, the movable end is difficult to keep flat during rewinding, easily causing bulges and edge curling in the coiled electrical steel strip, severely affecting its quality. Utility Model Content

[0004] In view of the above problems, this utility model provides a rewinding device for electrical steel strip.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0006] A rewinding device for electrical steel strip is provided, including a rewinding bracket set at the end of a steel strip processing production line. A first connecting arm is hinged to the top of the rewinding bracket. A fixed claw is fixedly set at the bottom end of the first connecting arm. A movable claw is hinged to the first connecting arm above the fixed claw. A covering groove is formed between the fixed claw and the movable claw, facing the steel strip roll at the end of the steel strip processing production line. Rollers are rotatably set at the ends of both the fixed claw and the movable claw. A rewinding strip for covering the outside of the roll is wound between the two rollers. A feed port for the steel strip to enter tangentially between the end of the fixed claw and the movable end of the movable claw is provided.

[0007] The rewinding bracket is provided with a first driving member for driving the first connecting arm to rotate, and the first connecting arm is provided with a second driving member for driving the movable claw to rotate. The movable end of the movable claw is provided with a push plate parallel to the width direction of the steel strip. The second driving member drives the movable end of the movable claw to move towards the drum so that the push plate is close to the outer wall of the drum. The push plate extends obliquely into the feed port and close to the fixed claw.

[0008] Furthermore, the first driving component is a first hydraulic cylinder, which is hinged on the rewinding bracket, and the output end of the first hydraulic cylinder is hinged to the first connecting arm.

[0009] The second driving component is a second hydraulic cylinder, which is hinged to the first connecting arm, and the output end of the second hydraulic cylinder is hinged to the movable claw.

[0010] Furthermore, the push plate is detachably connected to the movable claw, with movable claws extending from both sides of the push plate, and the push plate is the same width as the drum.

[0011] Furthermore, the push plate includes a base plate and several extension plates. The movable end of the movable claw is fixedly provided with an installation plate. The base plate is connected to the installation plate by bolts. Both ends of the base plate are provided with a first connecting groove. One end of the extension plate is fixedly provided with a connecting block adapted to the first connecting groove, and the other end is provided with a second connecting groove adapted to the connecting block. A connecting piece is fixedly provided on the extension plate and is connected to the installation plate by bolts.

[0012] Furthermore, the edge of the push plate away from the moving claw is covered with a wear-resistant layer.

[0013] Furthermore, it also includes a tensioning assembly, which includes a second connecting arm, one end of which is hinged to a first connecting arm. A tensioning roller is rotatably mounted on the second connecting arm, and the rewinding belt is wound around the tensioning roller. A third driving member is provided on the second connecting arm for driving the second connecting arm to rotate to tension the rewinding belt.

[0014] The beneficial effects of this utility model are as follows: When rewinding steel strip, by sequentially driving the first connecting arm and the movable claw to rotate, the fixed claw and the movable claw cover the outside of the drum, and the rewinding strip is tightly attached to the drum. The steel strip moves forward with the processing line and is fed into the feed inlet between the drum and the rewinding strip. Under the force of the rewinding strip, the steel strip is driven to keep in close contact with the drum and is wound on the drum. When the end of the steel strip re-enters the feed inlet, under the pushing action of the pusher plate, the movable end of the steel strip is kept as flat and close to the drum as possible when it is wound around the drum once, so that the steel coil finally rewinds flat and improves the quality of the produced steel coil. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the steel strip rewinding device according to an embodiment of this application.

[0016] Figure 2 This is a partial structural schematic diagram of the steel strip rewinding device according to an embodiment of this application.

[0017] Among them, 1. Rewinding bracket; 11. First hydraulic cylinder; 2. First connecting arm; 21. Second hydraulic cylinder; 3. Fixed claw; 4. Movable claw; 41. Mounting plate; 5. Roller; 6. Rewinding belt; 71. Base plate; 72. Extension plate; 73. Wear-resistant layer; 74. Connecting piece; 81. Tensioning roller; 82. Third hydraulic cylinder; 83. Second connecting arm. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] This application discloses a rewinding device for electrical steel strip, referring to... Figure 1 and Figure 2 The system includes a rewinding bracket 1, which is installed at the end of a steel strip processing line. A drum is located at the end of the steel strip processing line, and the drum is driven to rotate by a motor or other equipment, thereby winding the steel strip onto the drum. A first connecting arm 2 is hinged to the rewinding bracket 1, located on the side of the drum away from the steel strip processing line. The rewinding bracket 1 is equipped with a first driving component, which drives the first connecting arm 2 to rotate. A fixed claw 3 is fixedly connected to the movable end of the first connecting arm 2. A movable claw 4 is also hinged to the first connecting arm 2. A second driving component is provided on the first connecting arm 2 to drive the movable claw 4 to rotate. Rotation of the movable claw 4 creates a covering groove between the movable claw 4 and the fixed claw 3, capable of accommodating the drum. Rollers 5 are rotatably mounted on the ends of both the fixed claw 3 and the movable claw 4. A rewinding strip 6 is wound around the two rollers 5. When the fixed claw 3 and the movable claw 4 cover the drum, the rewinding strip 6 covers the outside of the drum, and a feed port is formed between the end of the fixed claw 3 and the movable end of the movable claw 4, allowing the steel strip to enter tangentially between the outer wall of the drum and the rewinding strip 6. A push plate is provided at the movable end of the movable claw 4, parallel to the width direction of the steel strip. When the second driving member drives the movable end of the movable claw 4 to move towards the drum, the push plate extends obliquely into the feed port and approaches the fixed claw 3 and the outer wall of the drum, leaving a small gap between the push plate, the fixed claw 3, and the outer wall of the drum for the steel strip to pass through.

[0020] In this embodiment, the first driving component can be a first hydraulic cylinder 11, with its cylinder body hinged to the rewinding bracket 1 and its output end hinged to the first connecting arm 2. The second driving component can be a second hydraulic cylinder 21, with its cylinder body hinged to the first connecting arm 2 and its output end hinged to the movable claw 4. In other embodiments, the first and second driving components can also be cylinders or electric push rods.

[0021] To improve the rewinding quality of steel coils and ensure that the moving end of the steel strip is flat and nearly flush with the drum when rewinding steel coils of different widths, in this embodiment, movable claws 4 extend from both sides of the push plate, and the push plate is the same width as the drum. By making the push plate the same width as the drum, when rewinding steel strip coils no wider than the drum, the push plate can maintain a flat and close position to the drum as the moving end of the steel strip is almost wrapped around the drum once, avoiding deformation and bulging of the steel strip edge when rewinding steel strips of different widths.

[0022] Furthermore, the push plate consists of a base plate 71 and several extension plates 72. An mounting plate 41 is integrally fixed to the movable end of the movable claw 4, away from the covering groove. The mounting plate 41 has several threaded holes. The base plate 71 is detachably fixed to the mounting plate 41 by bolts. When the base plate 71 wears or deforms during prolonged production, the operator can remove the base plate 71 from the mounting plate 41 for repair or replacement. Both ends of the base plate 71 have first connecting grooves. One end of the extension plate 72 is fixed with a connecting block adapted to the first connecting groove, and the other end has a second connecting groove adapted to the connecting block. A connecting piece 74 is integrally fixed to the extension plate 72 and is bolted to the mounting plate 41. The width of the base plate 71 is equal to the width of the movable claw 4. When processing steel strips of different sizes, the operator can choose to add extension plates 72 on both sides of the base plate 71. After the connecting block on the extension plate 72 is inserted and matched with the first connecting groove on the base plate 71, the connecting piece 74 is fixedly connected to the mounting plate 41 with bolts. This can extend the width of the push plate, so that the length of the push plate can adapt to the width of the steel strip. In addition to meeting the need for flat guidance of the steel strip, it can also meet the need for rewinding narrower steel strips from the side.

[0023] To reduce wear on the push plate, in this embodiment, the edge of the push plate away from the movable claw 4 is covered with a wear-resistant layer 73. The wear-resistant layer 73 can be a steel sheet. The steel sheet covers the outside of the push plate, which can effectively prevent wear on the push plate caused by repeated contact between the end of the steel strip and the push plate, and extend the service life of the push plate.

[0024] To ensure that the rewinding tape 6 adheres tightly to the steel strip fed into the feed inlet when wrapping the roll, a tensioning assembly is provided in this embodiment. The tensioning assembly includes a second connecting arm 83, one end of which is hinged to a first connecting arm 2. Several rewinding tapes 6 are rotatably connected to the second connecting arm 83 and wound around a tensioning roller 81. A third driving member is provided on the second connecting arm 83 to drive its rotation and tension the rewinding tape 6. Specifically, the third driving member can be a third hydraulic cylinder 82. The cylinder body of the third hydraulic cylinder 82 is hinged to the first connecting arm 2, and a crank is fixedly connected to the hinge shaft of the second connecting arm 83. The output rod end of the third hydraulic cylinder 82 is hinged to the end of the crank away from the hinge shaft of the second connecting arm 83.

[0025] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. An electrical steel strip rewinding device, characterized by: The system includes a rewinding bracket (1) installed at the end of the steel strip processing production line. The top of the rewinding bracket (1) is hinged with a first connecting arm (2). The bottom end of the first connecting arm (2) is fixed with a fixed claw (3). The first connecting arm (2) is hinged with a movable claw (4) above the fixed claw (3). A covering groove is formed between the fixed claw (3) and the movable claw (4) towards the steel strip roll at the end of the steel strip processing production line. Rollers (5) are rotatably installed at the ends of the fixed claw (3) and the movable claw (4). A rewinding strip (6) for covering the outside of the roll is wound between the two rollers (5). A feed port for the steel strip to enter tangentially between the end of the fixed claw (3) and the movable end of the movable claw (4) is provided between the fixed claw (3) and the movable end of the movable claw (4). The rewinding bracket (1) is provided with a first driving member for driving the first connecting arm (2) to rotate. The first connecting arm (2) is provided with a second driving member for driving the movable claw (4) to rotate. The movable end of the movable claw (4) is provided with a push plate parallel to the width direction of the steel strip. The second driving member drives the movable end of the movable claw (4) to move towards the drum so that the push plate is close to the outer wall of the drum. The push plate extends obliquely into the feed port and is close to the fixed claw (3).

2. The electrical steel strip rewinding device according to claim 1, characterized in that The first driving component is a first hydraulic cylinder (11), which is hinged on the rewinding bracket (1). The output end of the first hydraulic cylinder (11) is hinged to the first connecting arm (2). The second driving component is a second hydraulic cylinder (21), which is hinged on the first connecting arm (2), and the output end of the second hydraulic cylinder (21) is hinged to the movable claw (4).

3. The electrical steel strip rewinding device according to claim 1, characterized in that The push plate is detachably connected to the movable claw (4), and the movable claw (4) extends from both sides of the push plate. The push plate is the same width as the drum.

4. The electrical steel strip rewinding device according to claim 3, characterized in that The push plate includes a base plate (71) and several extension plates (72). The movable end of the movable claw (4) is fixedly provided with an installation plate (41). The base plate (71) is connected to the installation plate (41) by bolts. Both ends of the base plate (71) are provided with first connecting grooves. One end of the extension plate (72) is fixedly provided with a connecting block adapted to the first connecting groove, and the other end is provided with a second connecting groove adapted to the connecting block. A connecting piece (74) is fixedly provided on the extension plate (72). The connecting piece (74) is connected to the installation plate (41) by bolts.

5. The electrical steel strip rewinding device according to any one of claims 1 to 4, characterized in that The edge of the push plate away from the movable claw (4) is covered with a wear-resistant layer (73).

6. A rewinding device for an electrical steel strip according to any one of claims 1 to 4, characterized in that It also includes a tensioning assembly, which includes a second connecting arm (83), one end of which is hinged to a first connecting arm (2), a tensioning roller (81) is rotatably mounted on the second connecting arm (83), the rewinding belt (6) is wound around the tensioning roller (81), and a third driving member is provided on the second connecting arm (83) for driving the second connecting arm (83) to rotate to tension the rewinding belt (6).

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