Constant-tension unwinding device of aluminum coil wire drawing and drawing all-in-one machine
By designing a constant tension unwinding device and utilizing a magnetic powder clutch and lifting frame structure, the problem of aluminum material deviation, wrinkling, or breakage caused by tension fluctuations in the aluminum coil drawing and embroidery integrated machine is solved, thereby improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BINCHEN PRECISION SHEET METAL CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-19
AI Technical Summary
The unwinding device of the existing aluminum coil drawing and embroidery integrated machine is prone to causing the aluminum material to deviate, wrinkle or break when the tension fluctuates, which affects production efficiency and safety.
A constant tension unwinding device is adopted, which precisely controls the release of the aluminum coil through a magnetic powder clutch. The rollers press against the surface of the aluminum material to keep it taut. Combined with the lifting frame and the protrusion structure, the height of the aluminum coil is adjusted to prevent tension fluctuations from affecting the coil.
It effectively prevents aluminum materials from shifting, wrinkling, or breaking due to tension fluctuations, thus improving production efficiency and the stability of the equipment.
Smart Images

Figure CN224253877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aluminum coil unwinding devices, and in particular to a constant tension unwinding device for an integrated aluminum coil drawing and embellishing machine. Background Technology
[0002] In the process of drawing and decorating aluminum coils, the rolled-up aluminum coils need to be gradually released through an unwinding device, so that the aluminum coils are evenly fed into the drawing machine for drawing.
[0003] A search revealed a utility model patent with application number 202321569719.8, entitled "An Unwinding Adjustment Device." This patented device uses a downward-moving pressure roller to fix the unwinding tape, making it less prone to misalignment during tape splicing and reducing the risk of wrinkling and breakage. An adjustment mechanism is used to adjust the shape of the unwinding tape, reducing wrinkling abnormalities. The pressure roller is made of rubber, ensuring that it does not damage the surface structure of the unwinding tape when it is attached and fixed, thus improving the final unwinding tape's yield and quality. A distance sensor is installed on the pressure roller to detect the distance from the pressure roller to the roller below it. During the cylinder extension process, when the distance reaches a set value, the cylinder stops working, preventing the pressure roller from over-pressing the unwinding tape and causing damage.
[0004] However, the patented device may cause the aluminum material to fail to be taut due to tension fluctuations, resulting in the aluminum material becoming misaligned, wrinkled, or broken, which affects the production efficiency and safety of the device. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a constant tension unwinding device for an integrated aluminum coil drawing and embroidery machine.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A constant tension unwinding device for an integrated aluminum coil drawing and embroidery machine includes a support base. A protective mechanism is provided on the side of the support base. The protective mechanism includes at least two movable columns provided on the side of the support base. One end of each movable column is rotatably connected to a roller. A connecting frame is fixedly connected to the circumferential side of the movable column. A movable column is fixedly connected to one side of the bottom of the connecting frame. A protrusion is fixedly connected to the other end of the movable column.
[0008] Preferably, the side of the support base is provided with a lifting frame aligned with the moving column. The circumferential sides of the two moving columns are slidably connected to the top and bottom interiors of the lifting frame, respectively. A spring is fixedly connected between the bottom of the connecting frame and the top outer wall of the lifting frame, and the bottom of the protrusion abuts against the bottom inner wall of the lifting frame.
[0009] Preferably, the top and bottom of the lifting frame are fixedly connected to a connecting plate aligned with the movable column, the circumferential side of the movable column is slidably connected to the inside of the connecting plate, and a spring 2 is fixedly connected between the top of the connecting plate and the bottom of the connecting frame, which surrounds the movable column.
[0010] Preferably, a frame aligned with the moving column is slidably connected between the two outer walls of the lifting frame, the bottom of the frame abuts against the top of the moving column, and a lifting groove is provided on the side of the support base, with a motor fixedly connected to the bottom inner wall of the lifting groove.
[0011] Preferably, the output shaft of the second motor is fixedly connected to a lead screw, the other end of which is rotatably connected to the top inner wall of the lifting groove. A lifting block is threadedly connected to the circumferential side of the lead screw, and a connecting block aligned with the lifting frame is fixedly connected to the side of the lifting block. One side of the connecting block is fixedly connected to one outer wall of the lifting frame.
[0012] Preferably, a roller is rotatably connected to one side of the support base, a connecting shaft is fixedly connected to one end of the roller, the other end of the connecting shaft extends to the other side of the support base, a motor is fixedly connected to one side of the support base, a rotating shaft is fixedly connected to the output shaft of the motor, and a chain is meshed between the circumferential side of the rotating shaft and the circumferential side of the connecting shaft.
[0013] Preferably, a fixing frame is fixedly connected to one side of the support base, and a magnetic powder clutch body aligned with the connecting shaft is fixedly connected to the other end of the fixing frame. The inner wall of the circumferential side of the magnetic powder clutch body is fixedly connected to the circumferential side of the connecting shaft.
[0014] Compared with the prior art, this utility model provides a constant tension unwinding device for an integrated aluminum coil drawing and embellishment machine, which has the following beneficial effects:
[0015] The aluminum coil is placed on the roller shaft via the set protrusions. The aluminum material passes through the lifting frame and connects to the drawing machine. Motor 1 is started, driving the rotating shaft to rotate. The rotating shaft drives the connecting shaft via a chain, which in turn drives the roller shaft to rotate. The roller shaft releases the aluminum coil. Simultaneously, the release of the aluminum coil is precisely controlled by the magnetic powder clutch. Two rollers abut against the upper and lower surfaces of the aluminum material. When the release of the aluminum material causes fluctuations, the aluminum material pushes the rollers to move. The rollers move the movable column, which in turn moves the connecting frame. The connecting frame moves the frame, which in turn moves the moving column, which in turn moves the protrusion, causing the protrusion to push against the roller shaft. Maintaining the aluminum material taut helps prevent tension fluctuations from causing it to slip, wrinkle, or break, thus affecting the equipment's production efficiency and safety. Starting motor two drives the lead screw, which in turn moves the lifting block, which in turn moves the connecting block, which in turn moves the lifting frame. The lifting frame then moves the protrusion, allowing the device to adjust the height of the lifting frame as the number of aluminum coil turns decreases. This ensures the lifting frame remains parallel to the released aluminum coil, facilitating the device's use of the protrusion to straighten the coil and prevent tension fluctuations, thus improving the stability of the equipment's operation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the constant tension unwinding device of the integrated aluminum coil drawing and embroidery machine proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of the constant tension unwinding device of an integrated aluminum coil drawing and embroidery machine proposed in this utility model.
[0018] Figure 3 This is a partial structural schematic diagram of the constant tension unwinding device of an integrated aluminum coil drawing and embroidery machine proposed in this utility model.
[0019] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0020] In the diagram: 1-Support base, 2-Lifting frame, 3-Frame, 4-Moving column, 5-Spring 1, 6-Connecting frame, 7-Movable column, 8-Spring 2, 9-Connecting plate, 10-Roller, 11-Protrusion, 12-Roller shaft, 13-Motor 1, 14-Rotating shaft, 15-Chain, 16-Magnetic powder clutch body, 17-Connecting shaft, 18-Fixed frame, 19-Lifting groove, 20-Motor 2, 21-Screw, 22-Lifting block, 23-Connecting block. Detailed Implementation
[0021] Example, refer to Figure 1-4A constant tension unwinding device for an integrated aluminum coil drawing and embroidery machine includes a support base 1. A protective mechanism is provided on the side of the support base 1. The protective mechanism includes at least two movable columns 7 provided on the side of the support base 1. A roller 10 is rotatably connected to one end of the movable column 7. A connecting frame 6 is fixedly connected to the circumferential side of the movable column 7. A movable column 4 is fixedly connected to one side of the bottom of the connecting frame 6. A protrusion 11 is fixedly connected to the other end of the movable column 4.
[0022] In this utility model, the side of the support base 1 is provided with a lifting frame 2 aligned with the moving column 4. The circumferential sides of the two moving columns 4 are slidably connected to the top and bottom interiors of the lifting frame 2, respectively. A spring 5 is fixedly connected between the bottom of the connecting frame 6 and the top outer wall of the lifting frame 2, which surrounds the moving column 4. The bottom of the protrusion 11 abuts against the bottom inner wall of the lifting frame 2.
[0023] The top and bottom of the lifting frame 2 are fixedly connected to a connecting plate 9 that is aligned with the movable column 7. The circumferential side of the movable column 7 is slidably connected to the inside of the connecting plate 9. A spring 8 that surrounds the movable column 7 is fixedly connected between the top of the connecting plate 9 and the bottom of the connecting frame 6.
[0024] A frame 3 aligned with the moving column 4 is slidably connected between the two outer walls of the lifting frame 2. The bottom of the frame 3 abuts against the top of the moving column 4. A lifting groove 19 is provided on the side of the support base 1. A motor 20 is fixedly connected to the bottom inner wall of the lifting groove 19.
[0025] The output shaft of motor 20 is fixedly connected to lead screw 21. The other end of lead screw 21 is rotatably connected to the top inner wall of lifting groove 19. Lifting block 22 is threadedly connected to the circumferential side of lead screw 21. A connecting block 23 aligned with lifting frame 2 is fixedly connected to the side of lifting block 22. One side of connecting block 23 is fixedly connected to one outer wall of lifting frame 2.
[0026] A roller 12 is rotatably connected to one side of the support base 1. A connecting shaft 17 is fixedly connected to one end of the roller 12. The other end of the connecting shaft 17 extends to the other side of the support base 1. A motor 13 is fixedly connected to one side of the support base 1. A rotating shaft 14 is fixedly connected to the output shaft of the motor 13. A chain 15 is meshed between the circumferential side of the rotating shaft 14 and the circumferential side of the connecting shaft 17.
[0027] A fixing frame 18 is fixedly connected to one side of the support base 1, and a magnetic powder clutch body 16 aligned with the connecting shaft 17 is fixedly connected to the other end of the fixing frame 18. The inner wall of the circumferential side of the magnetic powder clutch body 16 is fixedly connected to the circumferential side of the connecting shaft 17.
[0028] Working principle: The aluminum coil is placed on roller 12, and the aluminum material is passed through lifting frame 2 and connected to the drawing machine. Motor 13 is started, driving rotating shaft 14 to rotate. Rotating shaft 14 drives connecting shaft 17 to rotate via chain 15. Connecting shaft 17 drives roller 12 to rotate, and roller 12 releases the aluminum coil. Simultaneously, the release of the aluminum coil is precisely controlled by magnetic powder clutch body 16. Two rollers 10 abut against the upper and lower surfaces of the aluminum material. When fluctuations occur during the release of the aluminum material, the aluminum material pushes roller 10 to move. Roller 10 drives movable column 7 to move, movable column 7 drives connecting frame 6 to move, connecting frame 6 drives frame 3 to move, frame 3 drives moving column 4 to move, and moving column 4 drives protrusion 11 to move. The protrusion 11 pushes the aluminum material to keep it taut, which helps prevent the aluminum material from slipping, wrinkling, or breaking due to tension fluctuations, thus affecting the production efficiency and safety of the device. The second motor 20 is started, which drives the lead screw 21 to rotate. The lead screw 21 drives the lifting block 22 to move, the lifting block 22 drives the connecting block 23 to move, the connecting block 23 drives the lifting frame 2 to move, and the lifting frame 2 drives the protrusion 11 to move. This allows the device to adjust the height of the lifting frame 2 as the number of aluminum coil turns decreases, so that the lifting frame 2 is always parallel to the released aluminum coil. This makes it easier for the device to wrap the aluminum coil with the protrusion 11 to straighten it, prevent the aluminum coil from being affected by tension fluctuations, and improve the stability of the device's operation.
[0029] 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. A constant tension unwinding device for an integrated aluminum coil drawing and embellishment machine, comprising a support base (1), characterized in that, The side of the support base (1) is provided with a protective mechanism, which includes at least two movable columns (7) provided on the side of the support base (1). One end of the movable column (7) is rotatably connected to a roller (10), and a connecting frame (6) is fixedly connected to the circumferential side of the movable column (7). A movable column (4) is fixedly connected to one side of the bottom of the connecting frame (6), and a protrusion (11) is fixedly connected to the other end of the movable column (4).
2. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 1, characterized in that, The support base (1) is provided with a lifting frame (2) aligned with the moving column (4) on its side. The circumferential sides of the two moving columns (4) are slidably connected to the top and bottom interiors of the lifting frame (2) respectively. A spring (5) is fixedly connected between the bottom of the connecting frame (6) and the top outer wall of the lifting frame (2) and surrounds the moving column (4). The bottom of the protrusion (11) abuts against the bottom inner wall of the lifting frame (2).
3. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 2, characterized in that, The side top and bottom of the lifting frame (2) are fixedly connected to a connecting plate (9) aligned with the movable column (7). The circumferential side of the movable column (7) is slidably connected to the inside of the connecting plate (9). A spring (8) surrounding the movable column (7) is fixedly connected between the top of the connecting plate (9) and the bottom of the connecting frame (6).
4. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 3, characterized in that, The lifting frame (2) is slidably connected between its two outer walls and a frame (3) aligned with the moving column (4). The bottom of the frame (3) abuts against the top of the moving column (4). The side of the support base (1) is provided with a lifting groove (19). The bottom inner wall of the lifting groove (19) is fixedly connected with a motor (20).
5. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 4, characterized in that, The output shaft of the second motor (20) is fixedly connected to a lead screw (21), and the other end of the lead screw (21) is rotatably connected to the top inner wall of the lifting groove (19). The circumferential side of the lead screw (21) is threadedly connected to a lifting block (22), and the side of the lifting block (22) is fixedly connected to a connecting block (23) aligned with the lifting frame (2). One side of the connecting block (23) is fixedly connected to one outer wall of the lifting frame (2).
6. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 5, characterized in that, A roller (12) is rotatably connected to one side of the support base (1). A connecting shaft (17) is fixedly connected to one end of the roller (12). The other end of the connecting shaft (17) extends to the other side of the support base (1). A motor (13) is fixedly connected to one side of the support base (1). A rotating shaft (14) is fixedly connected to the output shaft of the motor (13). A chain (15) meshes between the circumferential side of the rotating shaft (14) and the circumferential side of the connecting shaft (17).
7. The constant tension unwinding device of the aluminum coil drawing and embellishing integrated machine according to claim 6, characterized in that, One side of the support base (1) is fixedly connected to a fixing frame (18), and the other end of the fixing frame (18) is fixedly connected to a magnetic powder clutch body (16) aligned with the connecting shaft (17). The inner wall of the circumferential side of the magnetic powder clutch body (16) is fixedly connected to the circumferential side of the connecting shaft (17).