Automatic uncoiler capable of adjusting tension

Abstract

The utility model discloses an automatic uncoiler capable of adjusting tension, which comprises a bottom plate, a mandrel is rotatably mounted on the upper end face of the bottom plate through a support plate, an ultrasonic sensor is fixedly mounted on the inner wall of the support plate, a moving frame is fixedly mounted on the upper end face of the bottom plate through a support mechanism, and a double-thread screw is rotatably mounted on the inner wall of the moving frame. A rotating motor connected with the double-thread screw is fixedly installed on the outer wall of the moving frame, and two moving sleeves are installed on the outer wall of the double-thread screw through limiting mechanisms in a threaded mode. By arranging the ultrasonic sensor, the data processing module, the control module, the variable frequency motor and the like, the ultrasonic sensor can measure the change of the diameter of the coiled material in real time and send a signal to the data processing module, and the data processing module transmits collected data to the control module; the control module can adjust the speed and the reverse torque of the variable frequency motor in real time so as to keep the uncoiling tension stable.

Description

Technical Field

[0001] This utility model relates to the field of automatic unwinding machine technology, and in particular to an automatic unwinding machine with adjustable tension. Background Technology

[0002] An automatic uncoiler is a highly automated piece of equipment specifically designed for uncoiling and flattening metal coils. It can convert coiled raw materials into flat sheets for subsequent processing and handling.

[0003] In automated production lines, uncoilers are key equipment for metal sheet leveling, shearing, and other processes. In existing technologies, most uncoilers are inadequate in terms of tension control, often failing to adjust the uncoiling tension in real time according to changes in the coil diameter, leading to problems such as punching and loosening of the coil, affecting uncoiling quality and production efficiency, and lacking practicality. Therefore, it is necessary to redesign an automatic uncoiler with adjustable tension to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable tension automatic unwinding machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable tension automatic uncoiling machine includes a base plate. A mandrel is rotatably mounted on the upper surface of the base plate via a support plate. An ultrasonic sensor is fixedly mounted on the inner wall of the support plate. A movable frame is fixedly mounted on the upper surface of the base plate via a support mechanism. A double-ended screw is rotatably mounted on the inner wall of the movable frame. A rotary motor connected to the double-ended screw is fixedly mounted on the outer wall of the movable frame. Two movable sleeves are threadedly mounted on the outer wall of the double-ended screw via a limiting mechanism. Clamping plates are fixedly mounted on the outer walls of both movable sleeves via a connecting mechanism. Anti-slip toothed plates are fixedly mounted on the inner walls of both clamping plates. The upper surface of the base plate is open. A fixed frame is fixedly installed via a telescopic mechanism. A tension roller is rotatably installed inside the fixed frame. A lower clamping roller is rotatably installed on the upper surface of the base plate via a support frame. A connecting frame is fixedly installed on the inner wall of the support frame via a lifting mechanism. An upper clamping roller is rotatably installed inside the connecting frame. A variable frequency motor is fixedly installed on the outer wall of the rotating shaft of the upper clamping roller. A movable opening for cooperating with the variable frequency motor is opened on the outer wall of the support frame. Anti-slip sleeves are fixedly installed on the outer walls of both the lower and upper clamping rollers. Anti-slip textures are opened on the outer walls of both anti-slip sleeves. A data processing module and a control module are fixedly installed on the upper surface of the support frame.

[0007] Preferably, the support mechanism includes two support rods fixedly installed on the upper surface of the base plate, and the ends of the two support rods are fixedly connected to the bottom wall of the movable frame.

[0008] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the movable frame, the limiting rod sliding through the two movable sleeves.

[0009] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the outer wall of the movable sleeve, and the end of the connecting rod is fixedly connected to the outer wall of the clamping plate.

[0010] Preferably, the telescopic mechanism includes an electric actuator fixedly installed on the upper surface of the base plate, and the telescopic end of the electric actuator is fixedly connected to the bottom wall of the fixed frame.

[0011] Preferably, the lifting mechanism includes a cylinder fixedly installed on the inner wall of the support frame, and the telescopic end of the cylinder is fixedly connected to the upper end face of the connecting frame.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as ultrasonic sensors, data processing modules, control modules, and variable frequency motors, the ultrasonic sensors can measure changes in the roll diameter in real time and send the signals to the data processing module. The data processing module transmits the collected data to the control module, which adjusts the speed and reverse torque of the variable frequency motor in real time to maintain stable unwinding tension.

[0014] 2. By setting up components such as movable sleeves, connecting rods and clamping plates, when the two movable sleeves move, they can drive the clamping plates to move or move closer to each other through the cooperation of the connecting rods. The anti-slip toothed plates are used to clamp and position the roll material, preventing it from shifting position during the unwinding process and affecting the unwinding efficiency. The anti-slip toothed plates can increase the friction between the anti-slip toothed plates and the outer wall of the roll material, thereby increasing the clamping and positioning effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an adjustable tension automatic unwinding machine proposed in this utility model;

[0016] Figure 2 This is a right-side structural schematic diagram of an adjustable tension automatic unwinding machine proposed in this utility model;

[0017] Figure 3 This is a left-side structural schematic diagram of an adjustable tension automatic unwinding machine proposed in this utility model;

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Base plate, 2. Support plate, 3. Mandrel, 4. Ultrasonic sensor, 5. Support rod, 6. Moving frame, 7. Double-headed screw, 8. Rotary motor, 9. Limiting rod, 10. Moving sleeve, 11. Connecting rod, 12. Clamping plate, 13. Anti-slip toothed plate, 14. Electric push rod, 15. Fixed frame, 16. Tensioning roller, 17. Support frame, 18. Lower clamping roller, 19. Cylinder, 20. Connecting frame, 21. Upper clamping roller, 22. Variable frequency motor, 23. Anti-slip sleeve, 24. Data processing module, 25. Control module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 An adjustable tension automatic uncoiling machine includes a base plate 1. A mandrel 3 is rotatably mounted on the upper surface of the base plate 1 via a support plate 2. An ultrasonic sensor 4 is fixedly mounted on the inner wall of the support plate 2. A movable frame 6 is fixedly mounted on the upper surface of the base plate 1 via a support mechanism. The support mechanism includes two support rods 5 fixedly mounted on the upper surface of the base plate 1. The ends of the two support rods 5 are fixedly connected to the bottom wall of the movable frame 6. A double-ended screw 7 is rotatably mounted on the inner wall of the movable frame 6. A rotary motor 8 connected to the double-ended screw 7 is fixedly mounted on the outer wall of the movable frame 6. Two movable sleeves 10 are threadedly mounted on the outer wall of the double-ended screw 7 via a limiting mechanism. The limiting mechanism includes a limiting rod 9 fixedly mounted inside the movable frame 6. The limiting rod 9 slides through the two movable sleeves 10 and can limit the movement of the two movable sleeves 10, so that the two movable sleeves 10 can only move axially along the outer wall of the double-ended screw 7.

[0023] Both movable sleeves 10 have clamping plates 12 fixedly installed on their outer walls via a connecting mechanism. The connecting mechanism includes a connecting rod 11 fixedly installed on the outer wall of the movable sleeve 10. The end of the connecting rod 11 is fixedly connected to the outer wall of the clamping plate 12. Both clamping plates 12 have anti-slip toothed plates 13 fixedly installed on their inner walls. A fixed frame 15 is fixedly installed on the upper surface of the base plate 1 via a telescopic mechanism. The telescopic mechanism includes an electric push rod 14 fixedly installed on the upper surface of the base plate 1. The telescopic end of the electric push rod 14 is fixedly connected to the bottom wall of the fixed frame 15. A tension roller 16 is rotatably installed inside the fixed frame 15. A lower clamping roller 18 is rotatably installed on the upper surface of the base plate 1 via a support frame 17.

[0024] A connecting frame 20 is fixedly installed on the inner wall of the support frame 17 via a lifting mechanism. The lifting mechanism includes a cylinder 19 fixedly installed on the inner wall of the support frame 17. The telescopic end of the cylinder 19 is fixedly connected to the upper end face of the connecting frame 20. An upper clamping roller 21 is rotatably installed inside the connecting frame 20. A variable frequency motor 22 is fixedly installed on the outer wall of the rotating shaft of the upper clamping roller 21. A movable opening that cooperates with the variable frequency motor 22 is opened on the outer wall of the support frame 17. Anti-slip sleeves 23 are fixedly installed on the outer walls of both the lower clamping roller 18 and the upper clamping roller 21. Both anti-slip sleeves 23 are made of rubber. Rubber has good elasticity and softness, which allows it to form a closer contact between the surface and the object, thereby increasing friction and improving the coefficient of friction. Anti-slip textures are opened on the outer walls of both anti-slip sleeves 23. A data processing module 24 and a control module 25 are fixedly installed on the upper end face of the support frame 17.

[0025] When using this utility model, the roll material to be unwound is installed on the outer wall of the mandrel 3. The rotating motor 8 drives the double-headed screw 7 to rotate. When the double-headed screw 7 rotates, it can drive the two moving sleeves 10 to move relative to each other through the cooperation of the limiting rod 9. When the two moving sleeves 10 move, they can drive the clamping plates 12 to move relative to each other or move closer together through the cooperation of the connecting rod 11. The roll material is clamped and positioned by the cooperation of the anti-slip toothed plate 13 to prevent it from shifting position during unwinding, which would affect the unwinding efficiency. The anti-slip toothed plate 13 can increase the friction between the roll material and the outer wall of the roll material, thereby increasing the clamping and positioning effect. The unwound roll material is placed between the lower clamping roller 18 and the upper clamping roller 21. Under the extension and retraction of the cylinder 19, the upper clamping roller 21 inside the connecting frame 20 can be moved. Thus, the roll material can be flattened by the cooperation of the upper clamping roller 21 and the lower clamping roller 18. The anti-slip sleeve 23 on its surface and the anti-slip texture can reduce the position shift of the roll material during unwinding.

[0026] The extension and retraction of the electric push rod 14 drives the tension roller 16 to move up and down. The tension roller 16 can maintain appropriate tension according to the up and down direction of the roll material to avoid breakage of the roll material during unwinding. Then, the ultrasonic sensor 4 starts to work, measuring the change in the roll material diameter in real time and sending the signal to the data processing module 24. The data processing module 24 transmits the collected data to the control module 25. The control module 25 can calculate the required unwinding speed and reverse torque according to the preset tension control parameters and the real-time measured roll material diameter, and control the variable frequency motor 22 to perform the corresponding actions. Then, during the unwinding process, as the roll material diameter gradually decreases, the control module 25 will adjust the speed and reverse torque of the variable frequency motor 22 in real time to maintain the stability of the unwinding tension. At the same time, the control module 25 can also fine-tune the tension control parameters according to the actual needs of the production line to meet the unwinding requirements of different materials. The ultrasonic sensor 4 is electrically connected to the data processing module 24, and the control module 25 is electrically connected to the variable frequency motor 22.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable tension automatic uncoiler, comprising a base plate (1), characterized in that, A spindle (3) is rotatably mounted on the upper surface of the base plate (1) via a support plate (2). An ultrasonic sensor (4) is fixedly mounted on the inner wall of the support plate (2). A movable frame (6) is fixedly mounted on the upper surface of the base plate (1) via a support mechanism. A double-headed screw (7) is rotatably mounted on the inner wall of the movable frame (6). A rotating motor (8) connected to the double-headed screw (7) is fixedly mounted on the outer wall of the movable frame (6). Two movable sleeves (10) are threadedly mounted on the outer wall of the double-headed screw (7) via a limiting mechanism. Clamping plates (12) are fixedly mounted on the outer walls of both movable sleeves (10) via a connecting mechanism. Anti-slip toothed plates (13) are fixedly mounted on the inner walls of both clamping plates (12). A fixed frame (15) is fixedly mounted on the upper surface of the base plate (1) via a telescopic mechanism. A tensioning roller (16) is rotatably installed inside the fixed frame (15). A lower clamping roller (18) is rotatably installed on the upper end face of the base plate (1) via a support frame (17). A connecting frame (20) is fixedly installed on the inner wall of the support frame (17) via a lifting mechanism. An upper clamping roller (21) is rotatably installed inside the connecting frame (20). A variable frequency motor (22) is fixedly installed on the outer wall of the rotating shaft of the upper clamping roller (21). A movable opening for cooperating with the variable frequency motor (22) is opened on the outer wall of the support frame (17). Anti-slip sleeves (23) are fixedly installed on the outer walls of both the lower clamping roller (18) and the upper clamping roller (21). Anti-slip textures are opened on the outer walls of both anti-slip sleeves (23). A data processing module (24) and a control module (25) are fixedly installed on the upper end face of the support frame (17).

2. The adjustable tension automatic uncoiler according to claim 1, characterized in that, The support mechanism includes two support rods (5) fixedly installed on the upper surface of the base plate (1), and the ends of the two support rods (5) are fixedly connected to the bottom wall of the movable frame (6).

3. The adjustable tension automatic uncoiler according to claim 2, characterized in that, The limiting mechanism includes a limiting rod (9) fixedly installed inside the movable frame (6), and the limiting rod (9) slides through the two movable sleeves (10).

4. The adjustable tension automatic uncoiler according to claim 3, characterized in that, The connecting mechanism includes a connecting rod (11) fixedly installed on the outer wall of the movable sleeve (10), and the end of the connecting rod (11) is fixedly connected to the outer wall of the clamping plate (12).

5. An adjustable tension automatic uncoiler according to claim 4, characterized in that, The telescopic mechanism includes an electric push rod (14) fixedly installed on the upper surface of the base plate (1), and the telescopic end of the electric push rod (14) is fixedly connected to the bottom wall of the fixed frame (15).

6. An adjustable tension automatic uncoiler according to claim 5, characterized in that, The lifting mechanism includes a cylinder (19) fixedly installed on the inner wall of the support frame (17), and the telescopic end of the cylinder (19) is fixedly connected to the upper end face of the connecting frame (20).

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