A hot rolled strip coiling device
Patent Information
- Application Number
- CN202522199289.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0003]然而，该过程依赖人工操作，易因人为因素导致带钢端部弯折幅度或角度不足，使得带钢与卷筒芯之间的结合力不够
首先，本实用新型能够通过外弯折筒和内弯折筒的协同转动，强制将带钢端部在穿带槽位置弯折，确保弯折角度和幅度一致，增强并确保带钢与卷筒芯的结合力，防止收卷时空转。
Smart Images
Figure CN224854756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot-rolled strip steel production technology, specifically a hot-rolled strip steel coiling device. Background Technology
[0002] In the hot rolling process of strip steel production, the hot-rolled strip steel, such as Figure 6 As shown, they are wavy and vertically distributed, and are conveyed by conveyor rollers to... Figure 5 The winding device shown performs winding for easy transport to subsequent pickling and washing processes. A traditional winding device includes a base, a turntable rotatably mounted on the base, and a roll core concentrically engaged with the turntable. The turntable is horizontally distributed, and the roll cores are vertically distributed, with threading grooves cut into the roll core walls. During operation, the end of the strip is manually inserted into the roll core through the threading grooves, and then the end is manually bent using tools such as clamps. A drive mechanism then drives the turntable to rotate at high speed, winding the strip onto the roll core.
[0003] However, this process relies on manual operation, which can easily lead to insufficient bending or angle at the strip end due to human factors, resulting in inadequate bonding force between the strip and the drum core. When the turntable rotates at high speed, the strip end may not be effectively clamped, causing the drum core to spin freely, preventing the strip from being properly wound, affecting production efficiency and product quality, and making it difficult to meet the needs of continuous production. Utility Model Content
[0004] The present invention aims to provide a hot-rolled strip steel coiling device to ensure that the end of the strip steel can generate sufficient bonding force with the core of the coil before coiling, thereby ensuring the normal coiling process of the strip steel.
[0005] To solve the above technical problems, the specific solution adopted by this utility model is as follows: a hot-rolled strip steel coiling device, including a base and a turntable rotatably mounted on the base. A detachable coil core is concentrically mounted on the turntable. A threading groove for inserting the end of the strip steel is opened on the coil core. A strip steel bending mechanism for bending the end of the strip steel inserted into the threading groove is provided above the coil core. The strip steel bending mechanism includes a liftable base and an outer bending cylinder and an inner bending cylinder rotatably mounted at the lower edge of the base. The outer bending cylinder and the inner bending cylinder are both concentrically distributed with respect to the coil core. The diameter of the outer bending cylinder is larger than that of the coil core and an outer groove for the strip steel to pass through is opened on the cylinder wall. The diameter of the inner bending cylinder is smaller than that of the coil core and an inner groove for the strip steel to pass through is opened on the cylinder wall. The outer bending cylinder and the inner bending cylinder can be rotated by a driving member mounted on the base, and the strip steel that passes through the outer groove, the threading groove and the inner groove in sequence is bent at the threading groove position.
[0006] Preferably, both the outer and inner grooves are provided with guide flanges on their sides for bending the strip steel.
[0007] Preferably, the guide flange is arc-shaped.
[0008] Preferably, the opening angles of both the outer and inner slots are 30° to 60°.
[0009] Preferably, both the outer and inner bending cylinders are fitted with the drum core with a clearance after the base descends to the position of the drum core.
[0010] Preferably, the inner bending cylinder is fixed in the outer bending cylinder, and the top of the outer bending cylinder is provided with a rotating shaft that rotates with the base. The driving component is a motor reducer assembly, and the output shaft of the motor reducer assembly is provided with a driving gear, which meshes with a driven gear provided on the rotating shaft.
[0011] Preferably, the base is provided with an angular contact ball bearing for rotating the shaft.
[0012] Preferably, a top beam support is provided above the strip bending mechanism, and the top beam support is equipped with a hydraulic cylinder or pneumatic cylinder for driving the base to lift.
[0013] Beneficial effects First, this invention can force the end of the strip steel to be bent at the strip groove position by the coordinated rotation of the outer bending cylinder and the inner bending cylinder, ensuring that the bending angle and amplitude are consistent, enhancing and ensuring the bonding force between the strip steel and the drum core, and preventing empty rotation during winding.
[0014] Secondly, the strip bending mechanism in this invention can be lifted and lowered by a simple hydraulic cylinder or pneumatic cylinder structure, and driven to rotate by a simple motor gear structure, thereby reducing manual intervention, lowering labor intensity, and improving operating efficiency and safety. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model. At this time, the strip bending mechanism is separated from the core and is located above the core. Figure 2 for Figure 1 A schematic diagram showing the state of the strip bending mechanism after it descends to contact the drum core; Figure 3 In the specific implementation process, Figure 2 The diagram shows a transverse cross-sectional view of the outer bending cylinder, the core of the coil, and the inner bending cylinder. The strip steel in the diagram passes through the outer groove, the strip groove, and the inner groove in sequence. Figure 4 for Figure 3 A schematic diagram showing the state of the strip steel after the outer and inner bending cylinders rotate synchronously clockwise to bend the strip. Figure 5 The photograph shows a physical image of the strip coiling device, which is also a physical image of the applicant's hot strip rolling workshop. In the photograph, the end of the strip is manually inserted into the threading groove and bent.
[0016] Figure 6 The photograph shows the strip steel discharged from the hot rolling mill, and is also a photograph of the applicant's hot strip steel rolling workshop, showing the strip steel in a wavy and vertically distributed state.
[0017] The markings in the diagram are: 1. Base, 2. Turntable, 3. Spool core, 4. Inner bending cylinder, 5. Outer bending cylinder, 6. Driven gear, 7. Base, 8. Angular contact ball bearing, 9. Shaft, 10. Hydraulic cylinder, 11. Top beam support, 12. Drive component, 13. Drive gear, 14. Strip bending mechanism, 15. Guide flange, 16. Outer groove, 17. Inner groove, 18. Strip groove, 19. Strip. Detailed Implementation
[0018] like Figure 1 As shown, the hot-rolled strip steel coiling device of this embodiment is similar to the coiling device mentioned in the background art in that its basic structure includes a stable base 1. This base 1 is typically fixed to the foundation of the production workshop with anchor bolts, providing stable support for the entire device. On the base 1, a horizontally distributed turntable 2 is rotatably mounted via a large slewing bearing or a set of bearings (not shown in the figure). This turntable 2 is driven by a drive mechanism (not fully shown in the figure, but typically a motor coupled with a reducer drives a pinion gear that meshes with a large gear ring on the outer circumference of the turntable), enabling it to rotate at high speed around its central axis. The core function of the turntable 2 is to support and drive the core coiling component, the coil core 3. The coil core 3 is concentrically fixed to the center of the turntable 2 via detachable means such as flanges or slots. The coil core 3 is a vertical cylindrical shape, and its body is made of high-strength steel plate to withstand the enormous tension during strip steel coiling. On its drum wall, a strip insertion groove 18 is provided along the axial direction. The width of the groove is greater than the thickness of the strip steel 19 to be wound, so as to allow the end of the strip steel 19 to be inserted. As described in the background art, this strip insertion groove 18 is the key part for the initial bonding between the strip steel 19 and the drum core 3.
[0019] The core innovation of this invention lies in the strip bending mechanism 14 positioned directly above the winding core 3. This mechanism is spanned and fixed above the winding area by a robust top beam support 11. A hydraulic cylinder 10 (or a pneumatic cylinder, depending on the available power source) is mounted on the top beam support 11. The piston rod of the hydraulic cylinder 10 points vertically downwards, its end connected to an annular base 7. The base 7 serves as the mounting platform for the entire bending mechanism and can be precisely raised and lowered vertically under the drive of the hydraulic cylinder 10. This raising and lowering motion allows the bending mechanism to suspend at a high position to avoid interference when not in operation, and to accurately descend to the position to engage with the winding core 3 during operation.
[0020] The specific components executing the strip bending function are the outer bending cylinder 5 and the inner bending cylinder 4. Both adopt a cylindrical structure and are located at the lower edge of the base 7. The diameter of the outer bending cylinder 5 is designed to be larger than the outer diameter of the drum core 3, so that it can be smoothly fitted onto the outside of the drum core 3. The diameter of the inner bending cylinder 4 is designed to be smaller than the inner diameter of the drum core 3, so that it can be smoothly inserted into the inside of the drum core 3. After installation, both are concentrically distributed with the drum core 3. An outer groove 16 is formed on the wall of the outer bending cylinder 5; correspondingly, an inner groove 17 is formed on the wall of the inner bending cylinder 4. These two grooves are aligned in the initial state, forming a channel for the strip 19. To guide the strip 19 to bend smoothly and effectively, guide flanges 15 are provided on both sides of the outer groove 16 and the inner groove 17. The guide flange 15 is preferably an arc-shaped transition, which gradually applies lateral bending force to the strip 19 as the bending cylinder rotates, avoiding stress concentration and damage to the strip. Furthermore, the opening angle (central angle) of the outer groove 16 and the inner groove 17 is optimized between 30° and 60°, preferably 45°. This angle range ensures sufficient bending force while allowing the strip 19 to be smoothly guided and effectively bent. When the base 7 descends to the working position, a small gap is maintained between the outer bending cylinder 5 and the outer wall of the drum core 3, and between the inner bending cylinder 4 and the inner wall of the drum core 3. This ensures close proximity to the strip while avoiding direct friction with the drum core 3.
[0021] The power system that drives the outer bending cylinder 5 and the inner bending cylinder 4 to rotate synchronously is integrated on the base 7. In this embodiment, the inner bending cylinder 4 is rigidly fixed inside the outer bending cylinder 5 by a connecting plate or spokes, thereby achieving integrated rotation of the two. A vertical rotating shaft 9 is fixed at the top center of the outer bending cylinder 5, and this rotating shaft 9 is rotatably connected to the base 7 through a set of angular contact ball bearings 8 capable of withstanding axial and radial loads. The driving component 12 is preferably a compact motor reducer assembly with stable torque output, which is fixedly mounted on the base 7. A driving gear 13 is mounted on the output shaft of the motor reducer assembly, while a driven gear 6 is fixedly connected to the rotating shaft 9. The driving gear 13 and the driven gear 6 mesh with each other, forming a reliable gear transmission pair. When the driving component 12 is started, the power is transmitted to the rotating shaft 9 through the gear pair, thereby driving the outer bending cylinder 5 and the inner bending cylinder 4 to rotate together and perform the bending action.
[0022] Based on the above structure, the implementation process of this utility model is as follows: First, such as Figure 1 As shown, the strip bending mechanism 14 is initially located above the drum core 3. At this time, the end of the hot-rolled strip 19, which is fed through the conveyor roller, is manually passed through the strip insertion groove 18, so that the end of the strip 19 extends into the drum core 3.
[0023] Then, as Figure 2As shown, the hydraulic cylinder 10 drives the base 7 to descend, causing the outer bending cylinder 5 to cover the outer periphery of the drum core 3, and the inner bending cylinder 4 to enter the interior of the drum core 3. At this time, as... Figure 3 As shown, the outer groove 16 and the inner groove 17 are aligned with the strip steel 19.
[0024] Next, the drive unit 12 is activated, and the motor reducer assembly drives the rotating shaft 9 to rotate via the driving gear 13 and the driven gear 6, causing the outer bending cylinder 5 and the inner bending cylinder 4 to rotate synchronously in a clockwise direction. Due to the rotation of the outer bending cylinder 5 and the inner bending cylinder 4, the guide flange 15 applies a lateral force to the strip steel 19, forcibly bending the strip steel 19 at the position of the strip groove 18 to form a stable bending section. The bending angle is controlled by the groove opening angle and the rotation angle to ensure consistent bending amplitude. After bending is completed, the drive unit 12 stops, the hydraulic cylinder 10 drives the base 7 to rise, and the strip bending mechanism 14 resets to its original position. Figure 1 Finally, start the drive mechanism of turntable 2, causing turntable 2 and the core 3 to rotate counterclockwise at high speed, and the strip 19 is tightly wound onto the core 3. After winding is completed, remove the core 3 and the strip coil, replace it with a new core 3, and the next round of winding can begin.
Claims
1. A hot-rolled strip steel coiling device, comprising a base (1) and a turntable (2) rotatably mounted on the base (1), wherein a detachable coil core (3) is concentrically arranged on the turntable (2), and the coil core (3) is provided with a threading groove (18) for inserting the end of the strip steel (19), characterized in that: Above the core (3) is a strip bending mechanism (14) for bending the end of the strip (19) inserted into the strip slot (18). The strip bending mechanism (14) includes a liftable base (7) and an outer bending cylinder (5) and an inner bending cylinder (4) rotatably disposed at the lower edge of the base (7). The outer bending cylinder (5) and the inner bending cylinder (4) are both concentrically distributed around the core (3). The diameter of the outer bending cylinder (5) is larger than that of the core (3) and the cylinder wall has... An outer slot (16) is provided for the strip steel (19) to pass through. The inner bending cylinder (4) has a smaller diameter than the drum core (3) and an inner slot (17) is provided on the cylinder wall for the strip steel (19) to pass through. The outer bending cylinder (5) and the inner bending cylinder (4) can be rotated by a drive member (12) set on the base (7), and the strip steel (19) that passes through the outer slot (16), the strip groove (18) and the inner slot (17) in sequence will be bent at the strip groove (18).
2. The hot-rolled strip steel coiling device as described in claim 1, characterized in that: Both the outer groove (16) and the inner groove (17) are provided with guide flanges (15) for bending the strip (19).
3. The hot-rolled strip steel coiling device as described in claim 2, characterized in that: The guide flange (15) is arc-shaped.
4. The hot-rolled strip steel coiling device as described in claim 1, characterized in that: The opening angles of the outer slot (16) and the inner slot (17) are both 30° to 60°.
5. A hot-rolled strip steel coiling device as described in claim 1, characterized in that: Both the outer bending cylinder (5) and the inner bending cylinder (4) are fitted with the drum core (3) with a clearance after the base (7) descends to the position of the drum core (3).
6. The hot-rolled strip steel coiling device as described in claim 1, characterized in that: The inner bending cylinder (4) is fixed in the outer bending cylinder (5). The top of the outer bending cylinder (5) is provided with a rotating shaft (9) that rotates with the base (7). The driving component (12) is a motor reducer assembly. The output shaft of the motor reducer assembly is provided with a drive gear (13). The drive gear (13) meshes with the driven gear (6) provided on the rotating shaft (9).
7. A hot-rolled strip steel coiling device as described in claim 5, characterized in that: An angular contact ball bearing (8) is provided on the base (7) for the rotation of the shaft (9).
8. The hot-rolled strip steel coiling device as described in claim 1, characterized in that: Above the strip bending mechanism (14) is a top beam support (11), on which is a hydraulic cylinder or pneumatic cylinder for driving the base (7) to lift.