Automatic sleeve dismounting device for continuous production of strip steel
The automatic sleeve unloading device uses a drive motor and electromagnet to automatically grab and place the sleeve, which solves the problem of low efficiency of manual operation in the existing technology and improves the safety and space utilization of continuous strip steel production.
Patent Information
- Application Number
- CN202520352876.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-03
AI Technical Summary
The existing sleeve unloading device requires manual operation, which is inefficient, poses safety hazards, occupies a large area, and affects the efficiency and safety of continuous strip steel production.
The automatic sleeve unloading device utilizes a drive motor, rollers, guide rods, lifting mechanism, electromagnet, and controller to achieve fully automated operation. The electromagnet picks up and places the sleeve, combined with hydraulic cylinders and microcomputer control, reducing manual intervention and equipment footprint.
It achieves full automation of sleeve unloading operations, improves efficiency and safety, reduces floor space, and provides more space for other equipment.
Smart Images

Figure CN223888728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material handling equipment, specifically an automatic unloading sleeve device for continuous strip steel production. Background Technology
[0002] In the production of cold-rolled strip steel, thinner strip steel, due to its softer hardness, often collapses when laid horizontally, severely affecting important processes such as transportation and coiling. To avoid this, production often involves coiling the strip steel onto steel sleeves to ensure the roundness of the coil. If the sleeve remains on the uncoiler for an extended period after uncoiling, it will impact the coiling and transportation of the next coil. Therefore, the speed and efficiency of sleeve unloading are crucial for continuous strip steel production.
[0003] Currently, the commonly used unloading sleeve devices in various units are such as Figure 1 As shown, its principle is to use a hydraulic cylinder to drive the swing arm 11 to take the sleeve 12 out of the upper winding channel 13. However, since the sleeve storage position is fixed, it must be operated manually, which is inefficient and prone to accidents. On the other hand, the equipment must be placed on the ground, which occupies a large area, making the already limited factory space even worse. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model discloses an automatic unloading sleeve device for continuous strip steel production that is small in footprint, efficient, safe and reliable.
[0005] This utility model achieves its invention objective through the following technical solution:
[0006] An automatic unloading sleeve device for continuous strip steel production includes a frame, characterized in that it further includes a drive motor, rollers, guide rods, a lifting mechanism, a landing gear, and an electromagnet.
[0007] Two rollers are provided on each of the opposite sides of the frame via a pivot. The pivot is rotatably located on the side of the frame, and the rollers are mounted on the pivot.
[0008] The drive motor is fixed to the frame by the housing, and the output shaft of the drive motor is connected to the rotating shaft through a transmission device;
[0009] Two guide rods pass longitudinally through the frame to fix the frame to the guide rods;
[0010] The housing of the lifting mechanism is fixed to the bottom of the vehicle frame and is fixed on both sides by a guide rod. The moving end of the lifting mechanism extends downwards from the vehicle frame.
[0011] The landing gear is fixed to the moving end of the lifting mechanism via the top surface, and the two sides of the landing gear extend out of the guide rod on the same side respectively;
[0012] The electromagnet is a de-energized type, which is fixed to the bottom of the landing gear. The electromagnet is connected to the power supply through a wire, and a pressure sensor is installed on the electromagnet.
[0013] The drive motor, lifting mechanism, electromagnet, and pressure sensor are all connected to the controller via signal lines.
[0014] The automatic unloading sleeve device for continuous strip steel production is characterized in that: the drive motor is a gear motor, the lifting mechanism is a hydraulic cylinder, the cylinder body of the hydraulic cylinder serves as the housing of the lifting mechanism, the moving end of the hydraulic cylinder piston rod serves as the moving end of the lifting mechanism, and the controller is a microcomputer or programmable controller.
[0015] The method of using the automatic unloading sleeve device for continuous strip steel production is characterized by the following steps being performed sequentially:
[0016] S. Rail erection: A rail is erected on the unit for continuous strip steel production. The unit is equipped with a suction area and a discharge area is located next to the unit. The rail connects the suction area and the discharge area. The steel sleeve to be transferred is placed in the suction area. The rail and the rollers on both sides of the frame are matched with each other.
[0017] S. Carriage frame: Two rollers are provided on opposite sides of the carriage frame via a pivot. The pivot is rotatably located on the side of the carriage frame, and the rollers are mounted on the pivot. The carriage frame is movably mounted on the track via the rollers.
[0018] The drive motor is fixed to the frame via the housing, and the output shaft of the drive motor is connected to the rotating shaft via a transmission device;
[0019] Two guide rods are passed longitudinally through the frame to fix the frame to the guide rods;
[0020] The housing of the lifting mechanism is fixed to the bottom of the frame and fixed on both sides by a guide rod, so that the moving end of the lifting mechanism extends downward to the bottom of the frame.
[0021] The landing gear is fixed to the moving end of the lifting mechanism via the top surface, so that both sides of the landing gear extend out of the guide rod on the same side.
[0022] The electromagnet is fixed to the moving end of the lifting mechanism, and the electromagnet is connected to the power supply through a wire. A pressure sensor is installed on the electromagnet.
[0023] The drive motor, lifting mechanism, electromagnet, and pressure sensor are all connected to the controller via signal lines;
[0024] S. Unloading the drum:
[0025] The vehicle frame moves to the top of the suction area via a drive motor, energizing the electromagnet and demagnetizing it.
[0026] The moving end of the lifting mechanism extends downward to make the electromagnet contact the sleeve. Then the electromagnet is de-energized and generates magnetism to attract the sleeve. After the sleeve is attracted by the electromagnet, it generates pressure on the electromagnet and is detected by the pressure sensor.
[0027] After the pressure sensor detects that the electromagnet is under pressure, it determines that the sleeve is attracted. Then, the moving end of the lifting mechanism rises and lifts the sleeve, and the drive motor drives the vehicle to travel to the unloading area.
[0028] The moving end of the lifting mechanism extends downward again to place the sleeve at the unloading position. After it is properly placed, the electromagnet is energized and loses its magnetism. The sleeve and the electromagnet separate. After the sleeve and the electromagnet separate, the electromagnet no longer generates any force on the electromagnet and is no longer detected by the pressure sensor.
[0029] After the pressure sensor detects that the pressure on the electromagnet has disappeared, it determines that the sleeve has been unloaded. Then, the moving end of the lifting mechanism rises and lifts the electromagnet, and the drive motor drives the frame to move directly above the suction area, ready to pick up the next sleeve.
[0030] The method of using the automatic unloading sleeve device for continuous strip steel production is characterized by:
[0031] In step S, a gear motor is selected as the drive motor, a hydraulic cylinder is selected as the lifting mechanism, the cylinder body of the hydraulic cylinder serves as the housing of the lifting mechanism, the moving end of the hydraulic cylinder piston rod serves as the moving end of the lifting mechanism, and the controller is selected as a microcomputer or a programmable controller.
[0032] This invention provides a novel sleeve unloading device. A frame supports the overall structural strength, and a drive motor drives rollers to travel on a track. Synchronous shafts between the rollers ensure synchronized rotation. Two guide rods are inserted into the frame to assist the lifting mechanism in stably pushing the electromagnet up and down. The electromagnet's magnetism is controlled by electrical signals, thereby enabling the gripping or placement of the steel sleeve.
[0033] This invention eliminates the need for manual intervention in unloading sleeves, achieving full automation. Furthermore, from a design perspective, it avoids equipment such as saddle supports as much as possible, reducing the overall footprint of the equipment.
[0034] This utility model has the following beneficial effects:
[0035] It allows for more flexible selection of the sleeve storage location, which is beneficial for unit layout;
[0036] All control processes can be completed directly through sensors and electrical signals. With the help of other equipment such as sleeve conveyor chains, the sleeve loading and unloading process can be fully automated, eliminating the need for manual operation.
[0037] The electromagnet is made of a power-off type electromagnet, which can stably grip the sleeve even when the power is cut off in the factory area, greatly improving safety and efficiency;
[0038] The entire structure operates above the generator unit, with only a few steel structures in contact with the ground, greatly reducing the footprint and leaving space for other equipment. Attached Figure Description
[0039] Figure 1 This is a structural schematic diagram of existing unloading equipment.
[0040] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0041] The present invention will be further illustrated by specific embodiments below. Example
[0042] An automatic unloading sleeve device for continuous strip steel production includes a frame 1, a drive motor 2, rollers 3, guide rods 4, a lifting mechanism 5, a landing gear 6, and an electromagnet 7, such as Figure 2 As shown, the specific structure is:
[0043] Two rollers 3 are respectively provided on opposite sides of the frame 1 via a pivot 31. The pivot 31 is rotatably mounted on the side of the frame 1 via a bearing, and the rollers 3 are clamped on the pivot 31.
[0044] The drive motor 2 is fixed to the frame 1 by the housing, and the output shaft of the drive motor 2 is connected to the rotating shaft 31 through a transmission device. The transmission device can be a combination of a coupling and a synchronous shaft.
[0045] Two guide rods 4 pass longitudinally through the frame 1 to fix the frame 1 on the guide rods 4;
[0046] The housing of the lifting mechanism 5 is fixed to the bottom of the frame 1 and is fixed on both sides by a guide rod 4. The moving end of the lifting mechanism 5 extends downward to the bottom of the frame 1.
[0047] The landing gear 6 is fixed to the moving end of the lifting mechanism 5 via the top surface, and the two sides of the landing gear 6 extend out of the guide rod 4 on the same side respectively;
[0048] Electromagnet 7 is a de-energized type electromagnet, characterized by its magnetism when not energized, allowing it to attract magnetic materials. When energized, it demagnetizes, and the attraction disappears. It can be used in specific situations requiring prolonged object attraction, preventing sudden release due to power outages or supply problems, thus avoiding safety hazards. Electromagnet 7 is fixed to the bottom of landing gear 6 and connected to a power source via wires. A pressure sensor is also installed on electromagnet 7.
[0049] The drive motor 2, lifting mechanism 5, electromagnet 7, and pressure sensor are all connected to the controller via signal lines.
[0050] In this embodiment: the drive motor 2 is a gear motor, the lifting mechanism 5 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder serves as the housing of the lifting mechanism 5, the moving end of the hydraulic cylinder piston rod serves as the moving end of the lifting mechanism 5, and the controller is a programmable controller.
[0051] When using this embodiment, follow these steps in sequence:
[0052] S1. Rail erection: A rail is erected on the unit for continuous strip steel production. The unit is equipped with a suction area and a discharge area is provided next to the unit. The rail connects the suction area and the discharge area. The steel sleeve to be transferred is placed in the suction area. The rail and the rollers 3 on both sides of the frame 1 are matched with each other.
[0053] S2. Carriage frame: Two rollers 3 are provided on opposite sides of the frame 1 via a rotating shaft 31. The rotating shaft 31 is rotatably mounted on the side of the frame 1 via a bearing. The rollers 3 are clamped on the rotating shaft 31, and the frame 1 is movably mounted on the track via the rollers.
[0054] The drive motor 2 is fixed to the frame 1 through the housing, and the output shaft of the drive motor 2 is connected to the rotating shaft 31 through the transmission device.
[0055] Two guide rods 4 are passed longitudinally through the frame 1 to fix the frame 1 on the guide rods 4;
[0056] The housing of the lifting mechanism 5 is fixed to the bottom of the frame 1 and each side is fixed by a guide rod 4, so that the moving end of the lifting mechanism 5 extends downward to the bottom of the frame 1.
[0057] The landing gear 6 is fixed to the moving end of the lifting mechanism 5 via the top surface, so that both sides of the landing gear 6 extend out of the guide rod 4 on the same side respectively;
[0058] The electromagnet 7 is fixed on the moving end of the lifting mechanism 5, and the electromagnet 7 is connected to the power supply through a wire. A pressure sensor is provided on the electromagnet 7.
[0059] The drive motor 2, lifting mechanism 5, electromagnet 7, and pressure sensor are all connected to the controller via signal lines;
[0060] The drive motor 2 is a gear motor, the lifting mechanism 5 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder serves as the housing of the lifting mechanism 5, the moving end of the hydraulic cylinder piston rod serves as the moving end of the lifting mechanism 5, and the controller is a microcomputer or programmable controller.
[0061] S3. Unloading the drum:
[0062] The frame 1 moves to the top of the suction area via the drive motor 2, energizing the electromagnet 7 and demagnetizing it.
[0063] The moving end of the lifting mechanism 5 extends downward to make the electromagnet 7 contact the sleeve. Then the electromagnet 7 is de-energized and generates magnetism to attract the sleeve. After the sleeve is attracted by the electromagnet 7, it generates pressure on the electromagnet 7 and is detected by the pressure sensor.
[0064] After the pressure sensor detects that the electromagnet 7 is under pressure, it determines that the sleeve is attracted. Then, the moving end of the lifting mechanism 5 rises and lifts the sleeve, and the drive motor 2 drives the frame 1 to walk to the unloading area.
[0065] The moving end of the lifting mechanism 5 extends downward again to place the sleeve at the unloading position. After it is properly placed, the electromagnet 7 is energized and loses its magnetism. The sleeve and the electromagnet 7 separate. After the sleeve and the electromagnet 7 separate, they no longer generate power on the electromagnet 7 and are no longer detected by the pressure sensor.
[0066] After the pressure sensor detects that the pressure on the electromagnet 7 has disappeared, it determines that the sleeve has been unloaded. Then, the moving end of the lifting mechanism 5 rises and lifts the electromagnet 7. The drive motor 2 drives the frame 1 to move directly above the suction area, ready to pick up the next sleeve.
Claims
1. An automatic unloading sleeve device for continuous strip steel production, comprising a frame (1), characterized in that: It also includes a drive motor (2), rollers (3), guide rods (4), lifting mechanism (5), landing gear (6), and electromagnets (7). Two rollers (3) are provided on opposite sides of the frame (1) via a pivot (31). The pivot (31) is rotatably located on the side of the frame (1), and the rollers (3) are mounted on the pivot (31). The drive motor (2) is fixed to the frame (1) through the housing, and the output shaft of the drive motor (2) is connected to the rotating shaft (31) through the transmission device; Two guide rods (4) pass longitudinally through the frame (1) to fix the frame (1) on the guide rods (4); The housing of the lifting mechanism (5) is fixed under the frame (1) and is fixed on both sides by a guide rod (4). The moving end of the lifting mechanism (5) extends downward to the frame (1). The landing gear (6) is fixed to the moving end of the lifting mechanism (5) via the top surface, and the two sides of the landing gear (6) extend out of the guide rod (4) on the same side respectively; The electromagnet (7) is a de-energized electromagnet. The electromagnet (7) is fixed on the bottom surface of the landing gear (6). The electromagnet (7) is connected to the power supply through a wire. A pressure sensor is provided on the electromagnet (7). The drive motor (2), lifting mechanism (5), electromagnet (7) and pressure sensor are all connected to the controller via signal lines.
2. The automatic sleeve unloading device for continuous strip steel production as described in claim 1, characterized in that: The drive motor (2) is a gear motor, the lifting mechanism (5) is a hydraulic cylinder, the cylinder body of the hydraulic cylinder serves as the housing of the lifting mechanism (5), the moving end of the hydraulic cylinder piston rod serves as the moving end of the lifting mechanism (5), and the controller is a microcomputer or a programmable controller.