A coiler head roller device

Abstract

The application discloses a coiler head roller device, which comprises a coiler, and further comprises a head roller driving assembly, a head roller supporting assembly and a hydraulic cylinder. The head roller driving assembly comprises a cylinder seat fixedly installed on the top of the coiler and a hydraulic cylinder hinged to the cylinder seat. The head roller supporting assembly comprises a shaft support seat and a rotating shaft rotatably arranged on the shaft support seat. The extension end of the hydraulic cylinder is in transmission connection with the rotating shaft. The modular and integrated structure makes the overall structure layout extremely compact, the movement relationship of each component is clear, the response is rapid, the repeated positioning precision of compression is high, and the reliability of equipment operation is greatly improved. The three-section rubber roller structure of the head roller can guide and accommodate the head of the strip in the compression process, and the two straight diameter shoulder portions on the two sides can provide uniform and stable linear compression force.

Description

Technical Field

[0001] This application relates to the field of winding machine technology, specifically to a winding machine head roller device. Background Technology

[0002] In continuous rolling or processing lines, the coiler is a key piece of equipment for winding finished strip into coils. The initial stage of the coiling process, known as the "biting" or "tension building" stage, requires the strip head to be pressed quickly, smoothly, and reliably onto the drum to form the initial coil layer and provide stable tension for subsequent winding. Traditional crimping roller devices may suffer from problems such as loose structure, uneven pressing action, easy scratching or indentation of the strip surface, and inconvenient maintenance. Summary of the Invention

[0003] The technical problem to be solved by this application is to overcome the existing defects and provide a winding head roller device for a coiler, which has a compact structure, precise operation, can effectively protect the strip and is easy to maintain, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a winding head roller device for a winding machine, comprising:

[0005] The head roll drive assembly includes a cylinder seat fixedly mounted on the top of the coiler and a hydraulic cylinder hinged to the cylinder seat;

[0006] The head roll support assembly includes a shaft support seat disposed on the main body of the winding machine and a rotating shaft rotatably mounted on the shaft support seat, wherein the extension and retraction end of the hydraulic cylinder is connected to the rotating shaft in a transmission manner.

[0007] The head roller assembly includes a head roller bracket fixedly sleeved on the rotating shaft and a head roller mounted on the end of the head roller bracket; the head roller includes a rubber roller, end cap assemblies and connecting seats respectively disposed at the left and right ends of the rubber roller, and a hydraulic motor drivenly connected to the connecting seat.

[0008] As a preferred technical solution of this application, the rubber roller is divided into three sections along its axial direction, wherein the diameter of the middle section is smaller than the diameter of the left and right end sections, and the diameters of the two end sections are equal.

[0009] As a preferred technical solution of this application, a roller frame is fixedly provided at the end of the head roller support, and the head roller is mounted on the roller frame through a bearing assembly.

[0010] As a preferred technical solution of this application, the shaft support includes two opposing shaft supports, and the two ends of the rotating shaft are rotatably supported in the two shaft supports respectively.

[0011] As a preferred technical solution of this application, a bushing is press-fitted into the inner hole of each of the bearing seats, the rotating shaft is supported in the bearing seat by the bushing, and the rotating shaft and the bushing are coaxially arranged.

[0012] As a preferred embodiment of this application, the bearing seat is further provided with an oil cup for supplying lubricating grease to the friction pair between the bushing and the rotating shaft.

[0013] As a preferred technical solution of this application, the inner sides of both bearing seats are provided with spacers fitted onto the rotating shaft for axial positioning of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects of this application are: the modular and integrated structure of this application makes the overall structure layout extremely compact, the motion relationship of each component is clear, the response is rapid, the repeatability of the pressing position is high, and the reliability of the equipment operation is greatly improved.

[0015] The roll head adopts a three-section rubber roller structure. During the pressing process, the concave middle part can effectively guide and accommodate the strip head, while the raised shoulders of equal diameter on both sides can provide uniform and stable linear clamping force. This avoids the surface indentations or scratches on the strip that may be caused by pressure concentration in traditional flat rollers, and effectively prevents slippage during the pressing process. It ensures that the strip head can be quickly and smoothly wound in, resulting in neat and compact steel coils, suitable for the production of high-end strip materials with high surface quality requirements.

[0016] The shaft support of the support assembly adopts a wear-resistant bushing structure. After wear, only the bushing needs to be replaced, making maintenance costs far lower than replacing the entire shaft housing or shaft. An oil cup is installed on the shaft housing for convenient and periodic grease application, significantly extending the service life of the rotating parts. In the actuator assembly, the head roller is independently mounted on the roller frame via a bearing assembly, exhibiting a high degree of modularity and easy disassembly and replacement, greatly reducing maintenance downtime. This effectively reduces long-term maintenance costs and the failure rate of the equipment. Attached Figure Description

[0017] Figure 1 This is the main view of this application;

[0018] Figure 2 This is the left view of this application;

[0019] Figure 3 This is a schematic diagram of the head roller structure.

[0020] In the diagram: 1 Winding machine, 2 Cylinder seat, 3 Hydraulic cylinder, 4 Head roll support, 5 Head roll, 51 Rubber roller, 52 End cover assembly, 53 Connecting seat, 54 Hydraulic motor, 6 Shaft support seat, 7 Rotary shaft, 8 Roller frame, 9 Shaft seat, 10 Bushing, 11 Oil cup, 12 Spacer. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 1 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] Please see Figures 1-3 This application provides a technical solution: a winding head roller device for a winding machine, including a winding head roller drive assembly, which is responsible for providing the actions of pressing down and lifting the winding head roller. It mainly consists of a cylinder seat 2 and a hydraulic cylinder 3.

[0023] The cylinder seat 2 is typically a component welded from steel plates, and its bottom is securely mounted on the top platform of the coiler 1 with high-strength bolts, ensuring the stability of the entire drive base.

[0024] The tail end of the hydraulic cylinder 3 is hinged to the upper part of the cylinder seat 2 via a pin. This allows the hydraulic cylinder 3 to swing during the extension and retraction of the piston rod, ensuring smooth operation.

[0025] Hydraulic cylinder 3 preferably adopts a high-performance servo hydraulic cylinder with a built-in displacement sensor, so that the control system can accurately control its stroke and speed, thereby achieving smooth and precise pressing of the head roller.

[0026] The head roller support assembly converts the linear motion of the drive assembly into the rotational motion of the actuator assembly. It mainly includes a shaft support 6 and a rotating shaft 7. The shaft support 6 consists of two independent and oppositely arranged shaft seats 9. The two shaft seats 9 are typically symmetrically fixed to the coiler body 1 by bolts, and their coaxiality is ensured through precision machining and installation adjustments.

[0027] To reduce friction, extend service life, and facilitate maintenance while ensuring support strength, a wear-resistant bushing 10 is press-fitted into the inner hole of each bearing seat 9. This bushing 10 can be made of steel with a wear-resistant coating. The rotating shaft 7 passes through the bushing 10 holes of two bearing seats 9 respectively, forming a sliding bearing support pair. To ensure flexible rotation and uniform wear, the rotating shaft 7 and the bushing 10 must maintain extremely high coaxiality.

[0028] To further ensure the long-term reliable operation of this rotating pair, an oil cup 11 is installed above each bearing seat 9. This oil cup is a pressure-filled type. By periodically injecting grease into the oil cup 11 using a grease gun, the grease can be delivered to the friction surfaces of the bushing 10 and the rotating shaft 7, forming a lubricating film and significantly reducing wear and frictional resistance.

[0029] To prevent axial movement of the rotating shaft 7 during operation and thus affect its operational accuracy, spacers 12 are fitted on the inner sides of the two bearing seats 9, i.e., on opposite sides. The lengths of these spacers 12 are precisely calculated and work in conjunction with the sides of the bearing seats 9 and the head roller bracket 4 to precisely position the rotating shaft 7 axially.

[0030] The winding roll assembly is the component that directly contacts the strip and completes the winding task.

[0031] The assembly includes a head roller bracket 4 and a head roller 5. The head roller bracket 4 is fixedly connected to the end of the rotating shaft 7 by a key. The rotation of the rotating shaft 7 is directly converted into the oscillation of the head roller bracket 4.

[0032] A roller frame 8 is connected to the end of the head roller bracket 4. The head roller 5 is rotatably supported on the roller frame 8. The split structure makes the head roller 5 an independent module, which is easy to disassemble and replace, greatly facilitating maintenance.

[0033] The core of the head roller 5 is a rubber roller 51, whose body is divided into three sections along the axial direction: the diameter of the middle section is slightly smaller than that of the two end sections, and the diameters of the two end sections are equal. This "double-shoulder" structure allows the concave part in the middle to provide initial guidance and containment for the head of the strip when in contact with it, while the raised shoulders on both sides provide the main and uniform pressing force, effectively preventing strip indentations caused by excessive pressure concentration, and also reducing slippage during the pressing process.

[0034] At the left and right ends of the rubber roller 51, end cap assemblies 52 and connecting seats 53 are respectively installed. The end cap assembly 52 contains seals and bearings to support the roller body and prevent grease leakage. The connecting seat 53 is connected to the output shaft of the hydraulic motor 54. The hydraulic motor 54 directly drives the head roller 5 to rotate actively, and its rotation direction and speed can be matched with the winding drum of the coiler 1, so that the strip head can be wound in smoothly during pressing, making the operation more gentle and efficient.

[0035] In operation: At the start of winding, several turns of strip are already wound onto the winding machine drum as the core. The control system commands the piston rod of hydraulic cylinder 3 to extend, driving the rotating shaft 7 to rotate. The rotating shaft 7 drives the head roller bracket 4 and the head roller 5 mounted on it to swing downwards as a whole, causing the rotating head roller 5 to press against the drum and contact the strip. Under the action of hydraulic motor 54, the head roller 5 actively rotates in coordination with the linear speed of the drum, generating a frictional force into the drum, smoothly "forcing" the newly entering strip head into and adhering it to the existing coil layer, establishing stable tension. After completion, hydraulic cylinder 3 retracts, and head roller 5 lifts up and resets, waiting for the next work cycle.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding head roller device for a winding machine, characterized in that, include: The head roll drive assembly includes a cylinder seat (2) fixedly mounted on the top of the winding machine (1) and a hydraulic cylinder (3) hinged to the cylinder seat (2). The head roller support assembly includes a shaft support seat (6) disposed on the main body of the winding machine (1) and a rotating shaft (7) rotatably mounted on the shaft support seat (6), wherein the telescopic end of the hydraulic cylinder (3) is connected to the rotating shaft (7) in a transmission manner. The head roller assembly includes a head roller bracket (4) fixedly sleeved on the rotating shaft (7) and a head roller (5) installed at the end of the head roller bracket (4); the head roller (5) includes a rubber roller (51), end cap assemblies (52) and connecting seats (53) respectively disposed at the left and right ends of the rubber roller (51), and a hydraulic motor (54) drivenly connected to the connecting seat (53).

2. The winding head roller device of a winding machine according to claim 1, characterized in that: The rubber roller (51) is divided into three sections along its axial direction, wherein the diameter of the middle section is smaller than the diameter of the left and right end sections, and the diameters of the two end sections are equal.

3. The winding head roller device of a winding machine according to claim 1, characterized in that: The end of the head roller bracket (4) is fixedly provided with a roller frame (8), and the head roller (5) is installed on the roller frame (8) through a bearing assembly.

4. The winding head roller device of a winding machine according to claim 1, characterized in that: The shaft support (6) includes two opposing shaft supports (9), and the two ends of the rotating shaft (7) are rotatably supported in the two shaft supports (9).

5. The winding head roller device of a winding machine according to claim 4, characterized in that: Each of the bearing seats (9) has a bushing (10) press-fitted into its inner hole. The rotating shaft (7) is supported in the bearing seat (9) by the bushing (10), and the rotating shaft (7) and the bushing (10) are coaxially arranged.

6. The winding head roller device of a winding machine according to claim 5, characterized in that: The bearing seat (9) is also equipped with an oil cup (11) for supplying lubricating grease to the friction pair between the bushing (10) and the rotating shaft (7).

7. The winding head roller device of a winding machine according to claim 4, characterized in that: The inner sides of both bearing seats (9) are provided with spacers (12) fitted onto the rotating shaft (7) for axial positioning of the rotating shaft (7).

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