Aluminum roll unwinding device

Abstract

The invention relates to the technical field of unwinding devices, and particularly discloses an aluminum roll unwinding device which comprises a supporting frame, an unwinding roller and a winding roller, the unwinding roller and the winding roller are both rotationally connected to the supporting frame, floating rollers and adjusting assemblies used for flattening aluminum rolls are arranged on the supporting frame, the two sides of each floating roller are each rotationally provided with a floating assembly, and the floating assemblies are arranged on the supporting frame. A second auxiliary roller is arranged between the floating roller and the unwinding roller, and a first auxiliary roller is arranged between the floating roller and the adjusting assembly; the adjusting assembly comprises a flattening assembly and a driving assembly, one side of the driving assembly is rotationally connected to the flattening assembly, the other side of the driving assembly is rotationally connected to the supporting frame, and the other side of the flattening assembly is rotationally connected to the supporting frame. The aluminum coil flattening and unwinding device can adapt to flattening and unwinding of aluminum coils with different thicknesses, can adapt to the tightness degree of the unwinding shaft, and prevents the aluminum coils from being damaged or the aluminum coils from being internally loosened and externally tightened during winding.

Description

Technical Field

[0001] The invention relates to the technical field of unwinding devices, and in particular to an aluminum coil unwinding device. Background Art

[0002] Aluminum coil is a widely used metal coil, which is mainly made of high-purity aluminum through rolling. It is usually in the form of coils, with uniform thickness, smooth surface, good ductility and plasticity. Aluminum coils are widely used in many fields such as construction, packaging, transportation, electronics and electrical appliances, such as building curtain wall materials, aluminum foil for food packaging, body panels in automobile manufacturing, and heat sinks in electronic products. Its production process involves smelting, casting, hot rolling, cold rolling and other links. The final product has various forms and can be processed by cutting, stamping, drawing and other processing according to specific needs.

[0003] At present, the existing technology still has the following areas for improvement: the existing aluminum coil unwinding device has many limitations. Often, the flattening mechanism can only be adjusted manually during flattening, which is difficult to adapt to aluminum coils of different thicknesses, and cannot achieve accurate flattening and unwinding operations, resulting in wrinkles or unevenness of the aluminum coil during processing. In addition, the aluminum coil is prone to loose coiling during the unwinding process, that is, the coil becomes loose when unwinding, affecting the quality and efficiency of subsequent processing, and easily causing the aluminum coil to be damaged during the unwinding process, or the problem of tight inside and loose outside occurs during winding, which seriously affects the quality of the aluminum coil and the efficiency of subsequent processing. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides an aluminum coil unwinding device, which can adapt to the flattening and unwinding of aluminum coils of different thicknesses, and can adapt to the tightness of the unwinding roller to prevent the aluminum coil from being damaged or the aluminum coil from being loose inside and tight outside when being rewound.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An aluminum coil unwinding device comprises a support frame, an unwinding roller and a winding roller, wherein the unwinding roller and the winding roller are both rotatably connected to the support frame, a floating roller and an adjusting component for flattening the aluminum coil are arranged on the support frame, a floating component is rotatably arranged on both sides of the floating roller, a second auxiliary roller is arranged between the floating roller and the unwinding roller, and a first auxiliary roller is arranged between the floating roller and the adjusting component;

[0007] The adjusting assembly includes a flattening assembly and a driving assembly, one side of the driving assembly is rotatably connected to the flattening assembly, the other side of the driving assembly is rotatably connected to the supporting frame, and the other side of the flattening assembly is rotatably connected to the supporting frame.

[0008] Furthermore, the support frame is in a C-shaped structure, and an auxiliary bracket is fixedly provided on the upper ends of both sides of the support frame.

[0009] Furthermore, the winding roller is sleeved on the winding shaft, the unwinding roller is sleeved on the unwinding shaft, the first auxiliary roller is sleeved on the first connecting shaft, and the second auxiliary roller is sleeved on the second connecting shaft.

[0010] Furthermore, a winding motor is fixedly provided at one end of the winding shaft, and an unwinding motor is fixedly provided at one end of the unwinding shaft.

[0011] Furthermore, the flattening assembly comprises an upper pressing roller and a lower pressing roller, wherein the upper pressing roller is located at the upper end of the lower pressing roller, the upper pressing roller is sleeved on the upper rotating shaft, and the lower pressing roller is sleeved on the lower rotating shaft;

[0012] An upper driving gear is sleeved on the upper rotating shaft, and a lower driving gear is sleeved on the lower rotating shaft. The upper driving gear is meshed with an upper connecting gear, the lower driving gear is meshed with a lower connecting gear, and the upper connecting gear is meshed with a lower connecting gear.

[0013] Furthermore, the aluminum coil is located between the upper pressing roller and the lower pressing roller, the upper connecting gear is sleeved on the upper connecting shaft, and the lower connecting gear is sleeved on the lower connecting shaft.

[0014] Further, the driving assembly includes an upper driving rod, an upper connecting rod, a lower connecting rod and a lower driving rod, one end of the upper driving rod is rotatably provided with an upper actuator, the other end of the upper driving rod is rotatably provided with a first fixing block, the other end of the upper actuator is rotatably provided with a second fixing block, and the middle of the upper driving rod is rotatably connected with the upper connecting rod;

[0015] A lower actuator is rotatably provided at one end of the lower driving rod, a first fixed block is rotatably provided at the other end of the lower driving rod, a second fixed block is rotatably provided at the other end of the lower actuator, a lower connecting rod is rotatably connected to the middle of the lower driving rod, and the other end of the upper connecting rod is rotatably connected to the lower connecting rod.

[0016] Furthermore, the connection between the upper driving rod and the upper connecting rod is sleeved on the upper rotating shaft, the connection between the upper connecting rod and the lower connecting rod is sleeved on the upper connecting shaft, the connection between the lower connecting rod and the lower driving rod is sleeved on the lower rotating shaft, the middle part of the lower connecting rod is sleeved on the lower connecting shaft, and the other sides of the two first fixed blocks and the two second fixed blocks are fixedly connected to the auxiliary bracket and the support frame.

[0017] Furthermore, the floating assembly includes a sliding block, a movable slide rail and two elastic members, the sliding block is slidably connected to the movable slide rail, a driving motor is fixedly arranged on the sliding block, and two lower supporting blocks are fixedly arranged on the upper end of the sliding block;

[0018] The upper end of each lower support block is fixedly connected to an elastic member, the upper end of the movable slide rail is fixedly provided with an upper fixing member, and the upper ends of the two elastic members are fixedly connected to the lower end of the upper fixing member.

[0019] Furthermore, both ends of the floating roller are fixedly connected to a sliding block respectively, and the outer sides of the two floating components are fixedly connected to the inner side of the support frame.

[0020] The beneficial effects of the present invention are:

[0021] (1) By setting up the floating component, the technical effect that can be achieved is that when the aluminum coil is unwinding or rewinding, the surface of the aluminum coil may be scratched, wrinkled or even broken due to the change in the tension of the material itself. The floating component can adapt to the tightness of the unwinding roller shaft to prevent the aluminum coil from being damaged or the aluminum coil from being loose inside and tight outside when rewinding. The sliding block slides freely along the moving slide rail, and the floating roller can make a slight upward and downward displacement adjustment according to the actual tension of the aluminum coil;

[0022] When the tension of the aluminum coil increases, the floating roller can absorb the excess tension through the compression of the elastic part to avoid excessive pressure on the aluminum coil; conversely, when the tension of the aluminum coil decreases, the elastic force of the spring can help the floating roller to stick to the aluminum coil to prevent the aluminum coil from being loose inside and tight outside during the winding process.

[0023] (2) By setting up a flattening component, the technical effect that can be achieved is that the flattening component can flatten the aluminum coil. Through the cooperation of the upper pressing roller and the lower pressing roller, uniform pressure can be applied to the aluminum coil, effectively flattening the aluminum coil to the required flatness, significantly improving product quality and production efficiency;

[0024] The closed-loop transmission system formed by the upper driving gear, the lower driving gear, the upper connecting gear and the lower connecting gear ensures the synchronous movement of the upper pressing roller and the lower pressing roller, avoids uneven indentation or damage to the aluminum coil due to speed mismatch, and enhances the stability and reliability of the flattening process. The compact structure of the flattening assembly not only reduces the footprint, but also facilitates daily maintenance and extends the service life of the equipment.

[0025] (3) By setting up a driving assembly, the technical effect that can be achieved is that the driving assembly can adjust the position of the flattening assembly, and can adapt to the flattening and unwinding of aluminum coils of different thicknesses. The upper driving rod and the lower driving rod are driven by the upper actuator and the lower actuator respectively, and the four-bar linkage mechanism is used, combined with the rotation connection of the upper connecting rod and the lower connecting rod, and the stable sleeve on the upper rotating shaft, the upper connecting shaft, the lower rotating shaft and the lower connecting shaft, to ensure the precise displacement adjustment of the flattening assembly in the vertical and horizontal directions;

[0026] The two first fixing blocks and the two second fixing blocks are firmly connected to the auxiliary bracket and the support frame, providing a stable support foundation, which not only enhances the stability and durability of the drive assembly, but also facilitates precise position and force adjustment through intelligent control, thereby improving production efficiency and reducing operation difficulty and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 A top view of the present invention;

[0030] Figure 3 It is a partial front view of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the floating assembly in the present invention;

[0032] Figure 5 It is a structural schematic diagram of the regulating component in the present invention;

[0033] Figure 6 It is a structural schematic diagram of the flattening assembly in the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the driving component in the present invention;

[0035] Description of reference numerals:

[0036] In the figure: 1, aluminum coil; 2, first fixed block; 3, auxiliary bracket; 4, second fixed block; 5, first auxiliary roller; 6, floating roller; 7, unwinding roller; 8, second auxiliary roller; 9, moving slide rail; 10, support frame; 11, winding roller; 12, winding motor; 13, upper rotating shaft; 14, unwinding motor; 15, winding shaft; 16, first connecting shaft; 17, second connecting shaft; 18, unwinding shaft; 19, elastic member; 20, upper fixed block Fixed piece; 21, lower support block; 22, sliding block; 23, upper drive rod; 24, drive motor; 25, upper pressure roller; 26, upper drive gear; 27, lower drive gear; 28, lower pressure roller; 29, lower connecting shaft; 30, lower connecting gear; 31, upper connecting gear; 32, upper connecting shaft; 33, upper actuator; 34, upper connecting rod; 35, lower actuator; 36, lower drive rod; 37, lower connecting rod; 38, lower rotating shaft. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] Reference Figures 1 to 7, is an aluminum coil unwinding device disclosed in the present invention, comprising a support frame 10, an unwinding roller 7 and a winding roller 11, the unwinding roller 7 and the winding roller 11 are both rotatably connected to the support frame 10, a floating roller 6 and an adjusting component for flattening the aluminum coil 1 are arranged on the support frame 10, a floating component is rotatably arranged on both sides of the floating roller 6, a second auxiliary roller 8 is arranged between the floating roller 6 and the unwinding roller 7, and a first auxiliary roller 5 is arranged between the floating roller 6 and the adjusting component.

[0041] The adjusting assembly includes a flattening assembly and a driving assembly, one side of the driving assembly is rotatably connected to the flattening assembly, the other side of the driving assembly is rotatably connected to the support frame 10, and the other side of the flattening assembly is rotatably connected to the support frame 10.

[0042] The support frame 10 is in a C-shaped structure, and an auxiliary bracket 3 is fixedly disposed on the upper ends of both sides of the support frame 10 .

[0043] The winding roller 11 is sleeved on the winding shaft 15 , the unwinding roller 7 is sleeved on the unwinding shaft 18 , the first auxiliary roller 5 is sleeved on the first connecting shaft 16 , and the second auxiliary roller 8 is sleeved on the second connecting shaft 17 .

[0044] A winding motor 12 is fixedly disposed at one end of the winding shaft 15 , and an unwinding motor 14 is fixedly disposed at one end of the unwinding shaft 18 .

[0045] The flattening assembly includes an upper pressing roller 25 and a lower pressing roller 28 . The upper pressing roller 25 is located at the upper end of the lower pressing roller 28 . The upper pressing roller 25 is sleeved on the upper rotating shaft 13 , and the lower pressing roller 28 is sleeved on the lower rotating shaft 38 .

[0046] An upper driving gear 26 is sleeved on the upper rotating shaft 13, and a lower driving gear 27 is sleeved on the lower rotating shaft 38. The upper driving gear 26 is meshed with an upper connecting gear 31, the lower driving gear 27 is meshed with a lower connecting gear 30, and the upper connecting gear 31 is meshed with the lower connecting gear 30.

[0047] The aluminum coil 1 is located between the upper pressing roller 25 and the lower pressing roller 28 , the upper connecting gear 31 is sleeved on the upper connecting shaft 32 , and the lower connecting gear 30 is sleeved on the lower connecting shaft 29 .

[0048] The flattening assembly can flatten the aluminum coil 1. Through the cooperation of the upper pressing roller 25 and the lower pressing roller 28, uniform pressure can be applied to the aluminum coil 1, and the aluminum coil 1 can be effectively flattened to the required flatness, which significantly improves product quality and production efficiency. The closed-loop transmission system formed by the upper driving gear 26, the lower driving gear 27, the upper connecting gear 31 and the lower connecting gear 30 ensures the synchronous movement of the upper pressing roller 25 and the lower pressing roller 28, avoids uneven indentation or damage to the aluminum coil 1 caused by speed mismatch, and enhances the stability and reliability of the flattening process. The compact structure of the flattening assembly not only reduces the footprint, but also facilitates daily maintenance and extends the service life of the equipment.

[0049] The driving assembly includes an upper driving rod 23, an upper connecting rod 34, a lower connecting rod 37 and a lower driving rod 36. An upper actuator 33 is rotatably provided at one end of the upper driving rod 23, a first fixed block 2 is rotatably provided at the other end of the upper driving rod 23, a second fixed block 4 is rotatably provided at the other end of the upper actuator 33, and an upper connecting rod 34 is rotatably connected to the middle of the upper driving rod 23.

[0050] A lower actuator 35 is rotatably provided at one end of the lower driving rod 36, a first fixed block 2 is rotatably provided at the other end of the lower driving rod 36, a second fixed block 4 is rotatably provided at the other end of the lower actuator 35, a lower connecting rod 37 is rotatably connected to the middle of the lower driving rod 36, and the other end of the upper connecting rod 34 is rotatably connected to the lower connecting rod 37.

[0051] The connection between the upper driving rod 23 and the upper connecting rod 34 is sleeved on the upper rotating shaft 13, the connection between the upper connecting rod 34 and the lower connecting rod 37 is sleeved on the upper connecting shaft 32, the connection between the lower connecting rod 37 and the lower driving rod 36 is sleeved on the lower rotating shaft 38, the middle part of the lower connecting rod 37 is sleeved on the lower connecting shaft 29, and the other sides of the two first fixed blocks 2 and the two second fixed blocks 4 are fixedly connected to the auxiliary bracket 3 and the support frame 10.

[0052] The driving assembly can adjust the position of the flattening assembly and can adapt to the flattening and unwinding of aluminum coils 1 of different thicknesses. The upper driving rod 23 and the lower driving rod 36 are driven by the upper actuator 33 and the lower actuator 35 respectively, and utilize a four-bar linkage mechanism, combined with the rotational connection of the upper connecting rod 34 and the lower connecting rod 37, and a stable sleeve on the upper rotating shaft 13, the upper connecting shaft 32, the lower rotating shaft 38 and the lower connecting shaft 29, to ensure the precise displacement adjustment of the flattening assembly in the vertical and horizontal directions.

[0053] The two first fixing blocks 2 and the two second fixing blocks 4 are firmly connected to the auxiliary bracket 3 and the support frame 10, providing a stable support foundation, which not only enhances the stability and durability of the drive assembly, but also facilitates precise position and force adjustment through intelligent control, thereby improving production efficiency and reducing operation difficulty and cost.

[0054] The floating assembly includes a sliding block 22 , a movable slide rail 9 and two elastic members 19 . The sliding block 22 is slidably connected to the movable slide rail 9 . A driving motor 24 is fixedly disposed on the sliding block 22 . Two lower support blocks 21 are fixedly disposed on the upper end of the sliding block 22 .

[0055] An elastic member 19 is fixedly connected to the upper end of each lower support block 21, an upper fixing member 20 is fixedly provided on the upper end of the movable slide rail 9, and the upper ends of the two elastic members 19 are fixedly connected to the lower ends of the upper fixing member 20, and the elastic member 19 is a spring.

[0056] Both ends of the floating roller 6 are fixedly connected to a sliding block 22 , respectively, and the outer sides of the two floating components are fixedly connected to the inner side of the support frame 10 .

[0057] When the aluminum coil 1 is in the process of unwinding or rewinding, the surface of the aluminum coil 1 may be scratched, wrinkled or even broken due to the change in the tension of the material itself. The floating component can adapt to the tightness of the unwinding roller to prevent the aluminum coil 1 from being damaged or the aluminum coil 1 from being loose inside and tight outside when rewinding. The sliding block 22 slides freely along the movable slide rail 9, and the floating roller 6 can make a slight up and down displacement adjustment according to the actual tension of the aluminum coil 1.

[0058] When the tension of the aluminum coil 1 increases, the floating roller 6 can absorb the excess tension through the compression of the elastic member 19 to avoid excessive pressure on the aluminum coil 1; conversely, when the tension of the aluminum coil 1 decreases, the elastic force of the spring can help the floating roller 6 to fit tightly against the aluminum coil 1 to prevent the aluminum coil 1 from becoming loose inside and tight outside during the winding process.

[0059] Each lower support block 21 is connected to the upper fixing member 20 via a spring. This double spring design not only enhances the buffering capacity of the floating assembly, but also ensures the stable floating of the floating roller 6 in the vertical direction, further improving the protection effect of the aluminum coil 1.

[0060] The working principle and use process of the present invention are as follows: the winding motor 12 and the unwinding motor 14 are started, the winding motor 12 drives the winding shaft 15 to rotate, the winding shaft 15 drives the winding roller 11 to rotate, the unwinding motor 14 drives the unwinding shaft 18 to rotate, the unwinding shaft 18 drives the unwinding roller 7 to rotate, and the aluminum coil 1 passes through the second auxiliary roller 8, the floating roller 6, the first auxiliary roller 5 and the lower pressure roller 28 in sequence;

[0061] A sensor is provided on the floating roller 6, and the sensor is used to detect the force value of the aluminum coil 1. When the force value is detected to be too large or too small, the driving motor 24 is started, and the driving motor 24 drives the sliding block 22 to move on the moving slide rail 9, and adjusts the distance between the floating roller 6 and the first auxiliary roller 5 and the second auxiliary roller 8, so as to adjust the tightness of the aluminum coil 1, and the elastic member 19 assists the sliding block 22 to rise and fall;

[0062] If the thickness of the aluminum coil 1 needs to be adjusted, the upper actuator 33 and the lower actuator 35 are started, the upper actuator 33 contracts, the upper actuator 33 drives the upper driving rod 23 to rotate counterclockwise along the first fixed block 2, the upper driving gear 26 rotates, the upper driving gear 26 drives the upper connecting gear 31 to mesh and rotate, the upper driving rod 23 drives the upper connecting rod 34 to move upward, the lower actuator 35 contracts, the lower actuator 35 drives the lower driving rod 36 to rotate clockwise along the first fixed block 2, the lower driving gear 27 rotates, the lower driving gear 27 drives the lower connecting gear 30 to mesh and rotate, the lower driving rod 36 drives the lower connecting rod 37 to move downward, the upper connecting gear 31 and the lower connecting gear 30 mesh and rotate, so that the distance between the upper pressing roller 25 and the lower pressing roller 28 is increased, which is suitable for aluminum coils 1 of various thicknesses.

[0063] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An aluminum coil unwinding device, characterized in that: It includes a support frame, an unwinding roller and a winding roller, wherein the unwinding roller and the winding roller are both rotatably connected to the support frame, a floating roller and an adjustment component for flattening the aluminum coil are arranged on the support frame, a floating component is rotatably arranged on both sides of the floating roller, a second auxiliary roller is arranged between the floating roller and the unwinding roller, and a first auxiliary roller is arranged between the floating roller and the adjustment component; The adjusting assembly includes a flattening assembly and a driving assembly, one side of the driving assembly is rotatably connected to the flattening assembly, the other side of the driving assembly is rotatably connected to the supporting frame, and the other side of the flattening assembly is rotatably connected to the supporting frame.

2. The aluminum coil unwinding device according to claim 1, characterized in that: The support frame is in a C-shaped structure, and an auxiliary bracket is fixedly arranged on the upper ends of both sides of the support frame.

3. The aluminum coil unwinding device according to claim 1, characterized in that: The winding roller is sleeved on the winding shaft, the unwinding roller is sleeved on the unwinding shaft, the first auxiliary roller is sleeved on the first connecting shaft, and the second auxiliary roller is sleeved on the second connecting shaft.

4. The aluminum coil unwinding device according to claim 3, characterized in that: A winding motor is fixedly arranged at one end of the winding shaft, and an unwinding motor is fixedly arranged at one end of the unwinding shaft.

5. The aluminum coil unwinding device according to claim 1, characterized in that: The flattening assembly comprises an upper pressing roller and a lower pressing roller, wherein the upper pressing roller is located at the upper end of the lower pressing roller, the upper pressing roller is sleeved on the upper rotating shaft, and the lower pressing roller is sleeved on the lower rotating shaft; An upper driving gear is sleeved on the upper rotating shaft, and a lower driving gear is sleeved on the lower rotating shaft. The upper driving gear is meshed with an upper connecting gear, the lower driving gear is meshed with a lower connecting gear, and the upper connecting gear is meshed with a lower connecting gear.

6. The aluminum coil unwinding device according to claim 5, characterized in that: The aluminum coil is located between an upper pressing roller and a lower pressing roller, the upper connecting gear is sleeved on an upper connecting shaft, and the lower connecting gear is sleeved on a lower connecting shaft.

7. The aluminum coil unwinding device according to claim 6, characterized in that: The driving assembly comprises an upper driving rod, an upper connecting rod, a lower connecting rod and a lower driving rod, one end of the upper driving rod is rotatably provided with an upper actuator, the other end of the upper driving rod is rotatably provided with a first fixing block, the other end of the upper actuator is rotatably provided with a second fixing block, and the middle of the upper driving rod is rotatably connected with the upper connecting rod; A lower actuator is rotatably provided at one end of the lower driving rod, a first fixed block is rotatably provided at the other end of the lower driving rod, a second fixed block is rotatably provided at the other end of the lower actuator, a lower connecting rod is rotatably connected to the middle of the lower driving rod, and the other end of the upper connecting rod is rotatably connected to the lower connecting rod.

8. The aluminum coil unwinding device according to claim 7, characterized in that: The connection between the upper driving rod and the upper connecting rod is sleeved on the upper rotating shaft, the connection between the upper connecting rod and the lower connecting rod is sleeved on the upper connecting shaft, the connection between the lower connecting rod and the lower driving rod is sleeved on the lower rotating shaft, the middle part of the lower connecting rod is sleeved on the lower connecting shaft, and the other sides of the two first fixing blocks and the two second fixing blocks are fixedly connected to the auxiliary bracket and the support frame.

9. The aluminum coil unwinding device according to claim 1, characterized in that: The floating assembly includes a sliding block, a movable slide rail and two elastic members, the sliding block is slidably connected to the movable slide rail, a driving motor is fixedly arranged on the sliding block, and two lower supporting blocks are fixedly arranged on the upper end of the sliding block; The upper end of each lower support block is fixedly connected to an elastic member, the upper end of the movable slide rail is fixedly provided with an upper fixing member, and the upper ends of the two elastic members are fixedly connected to the lower end of the upper fixing member.

10. The aluminum coil unwinding device according to claim 9, characterized in that: The two ends of the floating roller are respectively fixedly connected to a sliding block, and the outer sides of the two floating components are fixedly connected to the inner side of the supporting frame.

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