Disclosed are a disc-shaped aluminum plate unwinding tension adjusting device and an adjusting method

Abstract

The application belongs to the technical field of cable production, and particularly relates to a disc-shaped aluminum plate unwinding tension adjusting device and adjusting method, which comprises a workbench, the upper end face edge of the workbench is rotationally connected with a winding disc, the outer circumferential surface of the winding disc is sleeved with an aluminum plate, the upper end face of the workbench away from the winding disc is fixedly connected with a transmission frame, the transmission frame is rotationally connected with a transmission wheel, the outer walls on the two sides of the transmission wheel are fixedly connected with horizontal columns, the horizontal columns away from the transmission wheel are fixedly connected in the transmission frame, and the outer circumferential surfaces of the two horizontal columns are rotationally connected with inclined frames; the adjusting mechanism drives the rotation of the rollers and the inclined frames, that is, the height of the rollers is adjusted, the problem that the height of the rollers cannot be adjusted after the whole device is fixed in the prior art is solved, the tension applied on the surface of the aluminum plate can be changed through the up-and-down adjustment of the rollers, so that the surface of the aluminum plate is always kept in a tensioned and wrinkle-free state during the transmission, and the quality of the smooth aluminum sleeve manufacturing process is ensured.

Description

Technical Field

[0001] This invention belongs to the field of cable production technology, specifically a device and method for adjusting the unwinding tension of a disc-shaped aluminum plate. Background Technology

[0002] Various types and specifications of cables are required in engineering applications across all industries, each with specific requirements regarding electrical performance, manufacturing processes, and material consumption. This necessitates companies to implement stricter manufacturing processes for cables, ensuring good electrical performance while minimizing material consumption and thus guaranteeing the quality of the manufactured cables.

[0003] Regarding the choice of structure for cable metal sheaths, there are three types: welded corrugated aluminum structure, extruded corrugated aluminum structure, and smooth aluminum structure. Welded corrugated aluminum sheaths have a corrugated shape, which means that the buffer layer cannot be completely filled when filling the cable structure. Gaps exist between two consecutive troughs in the corrugated aluminum sheath, and air can remain in these gaps. This poses a risk of air breakdown between the metal sheaths during long-term cable operation. Furthermore, corrugated aluminum sheaths require significantly more material than smooth aluminum structures, necessitating more aluminum sheet for producing the same cable model and specification. Therefore, welded corrugated aluminum structure power cables require more material. The second type, extruded corrugated aluminum sheaths, requires an extrusion process to create the corrugated aluminum structure. This process consumes a large amount of energy through heating, resulting in significant production capacity consumption, and subsequent cooling is also necessary.

[0004] Therefore, the production of the third type of smooth aluminum structure cable was chosen. This structure has obvious advantages in material consumption, which is significantly reduced compared to the previous two. It can meet the output of smooth aluminum cables under the integrated production of large equipment. However, during the production process, the aluminum plate is prone to wrinkles during transportation, which is not conducive to the subsequent production of cables.

[0005] Therefore, the present invention provides a device and method for adjusting the unwinding tension of a disc-shaped aluminum plate. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A disc-shaped aluminum plate unwinding tension adjustment device of this invention includes a worktable. A reel is rotatably connected to the upper edge of the worktable, and an aluminum plate is sleeved on the outer periphery of the reel. A transmission frame is fixedly connected to the upper side of the worktable away from the reel. A transmission wheel is rotatably connected inside the transmission frame. Horizontal columns are fixedly connected to the outer walls of both sides of the transmission wheel. The side of the horizontal column away from the transmission wheel is fixedly connected inside the transmission frame. Inclined frames are rotatably connected to the outer periphery of both horizontal columns. A roller is rotatably connected between the two inclined frames. An adjustment mechanism is provided above the worktable to move the height of the roller vertically. A limit mechanism is provided above the worktable to prevent large vertical vibrations of the aluminum plate during movement, ensuring the stability and accuracy of the aluminum plate conveying.

[0008] Preferably, the adjustment mechanism includes a hydraulic cylinder fixed to the upper surface of the workbench, a push rod fixed to the telescopic part of the hydraulic cylinder, a U-shaped frame slidably connected to the lower end of the inclined frame, and the top of the push rod hinged to the center of the bottom end of the U-shaped frame. During operation, when adjusting the vertical height of the rollers, the telescopic end of the hydraulic cylinder is controlled to move, causing it to drive the push rod and the U-shaped frame to move. This causes the U-shaped frame to rotate the inclined frame, which in turn drives the rollers to move synchronously. Thus, the vertical height of the rollers can be adjusted. Furthermore, the push rod and hydraulic cylinder are located at the center of the bottom end of the U-shaped frame, facilitating the transfer of the aluminum plate by the rollers and ensuring the stability of the aluminum plate during transfer.

[0009] Preferably, the limiting mechanism includes a connecting frame fixed to the upper surface of the workbench. There are two connecting frames, which are symmetrically arranged relative to the workbench. A rectangular frame is fixed to the side of each connecting frame near the aluminum plate. A caliper is slidably connected in each rectangular frame. The bottom of the caliper is rotatably connected to a limiting roller via a vertical shaft. A driving mechanism is provided on the upper surface of the workbench to adjust the distance between the two calipers.

[0010] Preferably, the driving mechanism includes a second hydraulic cylinder fixed to the upper surface of the workbench, a connecting bracket fixed to the telescopic end of the second hydraulic cylinder, arc-shaped plates fixed to both sides of the upper surface of the connecting bracket, and a pressure column fixed to the side of the caliper near the arc-shaped plate, the end of the pressure column contacting the arc-shaped surface of the arc-shaped plate.

[0011] In the initial state, the end of the pressure column is in contact with the arc surface of the curved plate, but has not reached the highest point of the arc surface. During operation, when it is necessary to adjust the distance between the two limit rollers, the extension end of the hydraulic cylinder in the drive mechanism is moved, causing the extension end to drive the connecting bracket to move upward, which in turn causes the connecting bracket to drive the arc plate to move upward, so that the highest point of the arc plate presses against the pressure column. The pressure column drives the caliper to move, and the caliper drives the limit roller to move. Since the arc plates on both sides move synchronously, the two limit rollers also move synchronously. This design not only avoids the problem of requiring operators to manually adjust the distance between the limit rollers in the existing technology, but also improves the adjustment efficiency based on the function of synchronously adjusting the limit rollers. It is beneficial for the transmission of aluminum plates of different widths and ensures the stability of the aluminum plates during transmission.

[0012] Preferably, the upper surface of the rectangular frame is provided with a rectangular groove, the bottom of the caliper is slidably connected to the rectangular groove by a slider, and the bottom of the slider is rotatably connected to a ball bearing, which is rotatably connected to the rectangular groove.

[0013] Preferably, two support rods are fixedly connected to the end of the pressure column near the arc-shaped plate, and a ball is rotatably connected between the two support rods. The outer surface of the ball contacts the arc-shaped surface of the arc-shaped plate, and the arc-shaped surface of the arc-shaped plate will squeeze the ball when the arc-shaped plate moves.

[0014] Preferably, a baffle is fixedly connected to the upper edge of the rectangular frame, and an elastic telescopic rod is fixedly connected between the baffle and the slider. A telescopic spring is sleeved on the outer surface of the elastic telescopic rod. During operation, when the pressure column moves the slider, the slider will simultaneously pull the elastic telescopic rod on its side wall, so that the elastic telescopic rod is in a stretched state. When the surface of the reel is changed to a different type of aluminum plate, the arc plate is controlled to move away from the end of the pressure column, that is, the arc plate no longer squeezes the end of the pressure column. Afterwards, when the elastic telescopic rod returns from the stretched state, the limit roller can be easily readjusted.

[0015] Preferably, the arc-shaped plate has an arc-shaped groove on the end face near the pressure column, the ball is in contact with the arc-shaped groove, two limiting grooves are formed in the arc-shaped groove, two L-shaped support rods are fixedly connected to the end face of the pressure column near the arc-shaped groove, and the end of the L-shaped support rod away from the pressure column is rotatably connected to a limiting shaft, the limiting shaft passing through the limiting groove.

[0016] Preferably, an infrared sensor is fixedly connected to the side of the worktable near the roller, and the sensing head of the infrared sensor faces the lower surface of the aluminum plate.

[0017] A method for adjusting the unwinding tension of a disc-shaped aluminum sheet, the method employing the aforementioned disc-shaped aluminum sheet unwinding tension adjusting device, includes the following steps:

[0018] S1. Before use, use a cutting machine to cut off the surfaces of the aluminum plates that have been in contact with air at both ends. Because aluminum is chemically active, it is easy to oxidize into aluminum oxide when it comes into contact with oxygen in the air. The welding temperature of aluminum oxide is much higher than that of aluminum plates, which increases the difficulty of welding and consumes a lot of resources. Therefore, the method of cutting the edges before welding is adopted to ensure the smooth welding of aluminum plates.

[0019] S2. Then pull out the aluminum plate on the outer periphery of the reel, pass it through the roller and the transmission wheel, and then extend it to the side of the cable welding position, and make a smooth aluminum sleeve for welding.

[0020] S3. If the aluminum plate has insufficient tension during the transfer process, i.e., there are wrinkles on the surface of the aluminum plate between the roller and the transfer wheel, then control the adjustment mechanism to move so that the adjustment mechanism drives the roller and the inclined frame to rotate, i.e., adjust the height of the roller.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. The disc-shaped aluminum plate unwinding tension adjustment device and method of the present invention, by controlling the movement of the adjustment mechanism, causes the adjustment mechanism to drive the roller and the inclined frame to rotate, that is, to adjust the height of the roller, which solves the problem that the height of the roller cannot be adjusted after the entire device is fixed. By adjusting the roller up and down, the tension applied to the surface of the aluminum plate can be changed, thereby keeping the surface of the aluminum plate taut and wrinkle-free during the transmission process, ensuring the quality of the smooth aluminum sleeve manufacturing process;

[0023] Furthermore, the limiting mechanism can apply a certain pressure to both ends of the aluminum plate, so that there will be no large up-and-down vibration during the movement of the aluminum plate, thus ensuring the stability and accuracy of the aluminum plate transmission.

[0024] 2. The disc-shaped aluminum plate unwinding tension adjustment device and method of the present invention, by limiting and guiding the relative limiting rollers, can not only apply a certain pressure to both ends of the aluminum plate, so that there will be no large vertical vibration during the movement of the traction aluminum plate, ensuring the stability and accuracy of the aluminum plate transmission, but also prevent the aluminum plate from skewing during transmission, which is beneficial to the subsequent production of smooth aluminum sleeves.

[0025] 3. The disc-shaped aluminum plate unwinding tension adjustment device and method of the present invention, wherein the arc plates on both sides move synchronously, so the two limiting rollers also move synchronously. This design not only avoids the problem of needing the operator to manually adjust the distance of the limiting rollers in the prior art, but also improves the adjustment efficiency by adjusting the limiting rollers synchronously, which is beneficial for the transmission of aluminum plates of different widths and ensures the stability of the aluminum plate during transmission. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a schematic diagram of a portion of the hydraulic cylinder structure in this invention;

[0029] Figure 3 This is a schematic diagram of the connecting frame structure in this invention;

[0030] Figure 4 This is a schematic diagram of the limiting roller structure in this invention;

[0031] Figure 5 This is a schematic diagram of the arc-shaped plate structure in this invention;

[0032] Figure 6 In this invention Figure 5 Enlarged view of the structure at point A;

[0033] Figure 7 This is a schematic diagram of the cross-sectional structure of the pressure column in this invention;

[0034] Figure 8 This is a three-dimensional view of the pressure column structure in this invention;

[0035] Figure 9 In this invention Figure 8 Enlarged view of the structure at point B;

[0036] Figure 10 This is a flowchart of the method in this invention.

[0037] In the diagram: 1. Workbench; 2. Reel; 3. Transfer frame; 301. Transfer wheel; 4. Horizontal column; 5. Inclined frame; 6. Roller; 7. Hydraulic cylinder one; 8. Top rod; 9. U-shaped frame; 10. Connecting frame; 11. Rectangular frame; 111. Rectangular groove; 12. Caliper; 121. Slider; 122. Limiting groove; 13. Limiting roller; 14. Hydraulic cylinder two; 15. Connecting bracket; 16. Arc plate; 17. Pressure column; 18. Support rod; 181. Ball bearing; 19. Baffle; 20. Elastic telescopic rod; 21. Arc groove; 22. L-shaped support rod; 23. Limiting shaft. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figures 1 to 4As shown in the embodiment of the present invention, a disc-shaped aluminum plate unwinding tension adjustment device includes a worktable 1. A reel 2 is rotatably connected to the upper edge of the worktable 1. An aluminum plate is sleeved on the outer periphery of the reel 2. A transmission frame 3 is fixedly connected to the upper side of the worktable 1 away from the reel 2. A transmission wheel 301 is rotatably connected inside the transmission frame 3. Horizontal columns 4 are fixedly connected to the outer walls of both sides of the transmission wheel 301. The side of the horizontal column 4 away from the transmission wheel 301 is fixedly connected inside the transmission frame 3. Inclined frames 5 are rotatably connected to the outer periphery of the two horizontal columns 4. A roller 6 is rotatably connected between the two inclined frames 5. An adjustment mechanism is provided above the worktable 1 to move the height of the roller 6 up and down. A limit mechanism is provided above the worktable 1 to prevent large vertical vibrations of the aluminum plate during movement, ensuring the stability and accuracy of the aluminum plate conveying.

[0040] During operation, before use, the surfaces of the aluminum plates that have been in contact with the air are cut off using a strip cutting machine. This is because aluminum is chemically active and easily oxidizes into aluminum oxide when it comes into contact with oxygen in the air. The welding temperature of aluminum oxide is much higher than that of aluminum plates, which increases the difficulty of welding and consumes a lot of resources. Therefore, the method of cutting the edges before welding is adopted to ensure smooth welding of aluminum plates.

[0041] The aluminum plate on the outer periphery of the reel 2 is then pulled out and passed through the roller 6 and the transmission wheel 301. It then extends to the side of the cable welding position and is used to weld a smooth aluminum sleeve. The welding method here is existing technology and will not be described in detail in this embodiment. If the tension of the aluminum plate is insufficient during the transmission of the aluminum plate, that is, there are wrinkles on the surface of the aluminum plate between the roller 6 and the transmission wheel 301, the adjustment mechanism is controlled to move, so that the adjustment mechanism drives the roller 6 and the inclined frame 5 to rotate, that is, the height of the roller 6 is adjusted. This solves the problem that the height of the roller 6 cannot be adjusted after the entire device is fixed. By adjusting the roller 6 up and down, the tension applied to the surface of the aluminum plate can be changed, thereby keeping the surface of the aluminum plate taut and wrinkle-free during the transmission process, ensuring the quality of the smooth aluminum sleeve manufacturing process.

[0042] Furthermore, the limiting mechanism can apply a certain pressure to both ends of the aluminum plate, so that there will be no large up-and-down vibration during the movement of the aluminum plate, thus ensuring the stability and accuracy of the aluminum plate transmission.

[0043] It should be noted that, Figure 1 and Figure 3 In this context, P represents an aluminum plate.

[0044] The adjustment mechanism includes a hydraulic cylinder 7 fixed to the upper surface of the workbench 1. A push rod 8 is fixedly connected to the telescopic part of the hydraulic cylinder 7. A U-shaped frame 9 is slidably connected to the lower end of the inclined frame 5. The top of the push rod 8 is hinged to the center of the bottom end of the U-shaped frame 9. During operation, when adjusting the vertical height of the roller 6, the telescopic part of the hydraulic cylinder 7 is controlled to move, causing the telescopic part to drive the push rod 8 and the U-shaped frame 9 to move. This causes the U-shaped frame 9 to drive the inclined frame 5 to rotate, thereby causing the inclined frame 5 to drive the roller 6 to move synchronously. In this way, the vertical height of the roller 6 can be adjusted. Moreover, the push rod 8 and the hydraulic cylinder 7 are located at the center of the bottom end of the U-shaped frame 9, which facilitates the transmission of the aluminum plate by the roller 6 and ensures the stability of the aluminum plate during transmission.

[0045] like Figures 2 to 6 As shown, the limiting mechanism includes a connecting frame 10 fixed to the upper surface of the workbench 1. There are two connecting frames 10, which are symmetrically arranged relative to the workbench 1. A rectangular frame 11 is fixed to the side of each connecting frame 10 near the aluminum plate. A caliper 12 is slidably connected in each rectangular frame 11. The bottom of the caliper 12 is rotatably connected to a limiting roller 13 via a vertical shaft. A driving mechanism is provided on the upper surface of the workbench 1. The driving mechanism is used to adjust the distance between the two calipers 12.

[0046] During operation, if the limiting roller 13 does not contact the outer side of the aluminum plate during the transfer of the aluminum plate, i.e., the width of the aluminum plate is narrow, the drive mechanism is controlled to move the calipers 12 inside the rectangular frame 11. The two calipers 12 move towards each other synchronously, and the calipers 12 will simultaneously drive the two limiting rollers 13 to move towards each other and contact the outer side of the aluminum plate. In this way, under the limiting and guiding of the relative limiting rollers 13, a certain pressure can be applied to both ends of the aluminum plate. This prevents large vertical vibrations during the movement of the aluminum plate, ensuring the stability and accuracy of the aluminum plate transfer. Moreover, the aluminum plate will not be skewed during transfer, which is beneficial for the subsequent production of smooth aluminum sleeves.

[0047] like Figures 1 to 6 As shown, the driving mechanism includes a second hydraulic cylinder 14 fixed to the upper end face of the workbench 1. A connecting bracket 15 is fixed to the telescopic end of the second hydraulic cylinder 14. Arc plates 16 are fixed to both sides of the upper end face of the connecting bracket 15. A pressure column 17 is fixed to the side of the caliper 12 near the arc plate 16. The end of the pressure column 17 contacts the arc surface of the arc plate 16.

[0048] In the initial state, the end of the pressure column 17 is in contact with the arc surface of the arc plate 16, but has not reached the highest point of the arc surface. During operation, when it is necessary to adjust the distance between the two limiting rollers 13, the extension end of the hydraulic cylinder 14 in the control drive mechanism is moved, causing the extension end to drive the connecting bracket 15 to move upward, which in turn causes the connecting bracket 15 to drive the arc plate 16 to move upward, so that the high point of the arc plate 16 presses the pressure column 17. The pressure column 17 drives the caliper 12 to move, and the caliper 12 drives the limiting rollers 13 to move. Since the arc plates 16 on both sides move synchronously, the two limiting rollers 13 also move synchronously. This design not only avoids the problem of manual adjustment of the distance between the limiting rollers 13 required by the existing technology, but also improves the adjustment efficiency by adjusting the limiting rollers 13 synchronously. This is beneficial for the transmission of aluminum plates of different widths and ensures the stability of the aluminum plates during transmission. At the same time, under the rotation of the two limiting rollers 13, some of the lace and large burrs on the side wall of the aluminum plate can be flattened to avoid affecting the subsequent production of the aluminum sleeve.

[0049] like Figures 3 to 9 As shown, a rectangular groove 111 is provided on the upper end face of the rectangular frame 11. The bottom of the caliper 12 is slidably connected to the rectangular groove 111 through a slider 121. A ball bearing is rotatably connected to the bottom of the slider 121, and the ball bearing is rotatably connected to the rectangular groove 111. During operation, since the bottom of the caliper 12 is slidably connected to the rectangular groove 111 through the slider 121, when the pressure column 17 is squeezed by the arc plate 16, the pressure column 17 will drive the caliper 12 and the slider 121 to move in the rectangular groove 111. Under the limitation of the rectangular groove 111, it can be ensured that the calipers 12 on both sides and the limiting roller 13 move on the same horizontal plane, which is beneficial to the limiting roller 13 limiting the aluminum plate.

[0050] Two support rods 18 are fixedly connected to the end of the pressure column 17 near the arc plate 16. A ball bearing 181 is rotatably connected between the two support rods 18. The outer surface of the ball bearing 181 is in contact with the arc surface of the arc plate 16. When the arc plate 16 moves, its arc surface will squeeze the ball bearing 181. During operation, in order to facilitate the squeezing of the end of the pressure column 17 by the arc plate 16 and drive the pressure column 17 to move, a ball bearing 181 is provided at the end of the pressure column 17. Moreover, the ball bearing 181 is in contact with the arc surface of the arc plate 16. Therefore, when the arc plate 16 moves, the ball bearing 181 will rotate at a certain angle, which facilitates the movement of the pressure column 17 and makes it easier to adjust the distance between the two limiting rollers 13.

[0051] A baffle 19 is fixedly connected to the upper edge of the rectangular frame 11. An elastic telescopic rod 20 is fixedly connected between the baffle 19 and the slider 121. A telescopic spring is sleeved on the outer surface of the elastic telescopic rod 20. During operation, when the pressure column 17 drives the slider 121 to move, the slider 121 will simultaneously pull the elastic telescopic rod 20 on its side wall, so that the elastic telescopic rod 20 is in a stretched state. When the surface of the reel 2 is replaced with a different type of aluminum plate, the arc plate 16 is controlled to move away from the end of the pressure column 17, that is, the arc plate 16 no longer squeezes the end of the pressure column 17. Afterwards, when the elastic telescopic rod 20 returns to the stretched state, the limit roller 13 can be easily readjusted.

[0052] An arc-shaped groove 21 is formed on the end face of the arc-shaped plate 16 near the pressure column 17. The ball 181 contacts the arc-shaped groove 21. Two limiting grooves 122 are formed in the arc-shaped groove 21. Two L-shaped support rods 22 are fixedly connected to the end face of the pressure column 17 near the arc-shaped groove 21. The ends of the L-shaped support rods 22 away from the pressure column 17 are rotatably connected to a limiting shaft 23. The limiting shaft 23 passes through the limiting groove 122. During operation, when the arc-shaped plate 16 squeezes the ball 181 and drives the pressure column 17... During movement, the pressure column 17 simultaneously drives the L-shaped support rod 22 to move. The L-shaped support rod 22 drives the limiting shaft 23 to roll within the limiting groove 122. Under the limiting of the limiting shaft 23 by the limiting groove 122, the position of the pressure column 17 can be limited. After the limiting roller 13 is adjusted, the stability of the pressure column 17 at its end is improved, avoiding the problem of the pressure column 17 detaching from the surface of the arc plate 16. This ensures that there will be no large vertical vibration during the movement of the traction aluminum plate, thus ensuring the stability and accuracy of the aluminum plate transmission.

[0053] An infrared sensor 24 is fixedly connected to the side of the workbench 1 near the roller 6, and the sensing head of the infrared sensor 24 faces the lower surface of the aluminum plate.

[0054] It should be noted that the infrared sensor 24 is located at the center line. If the aluminum plate deviates from the center line, the positions of the rollers 6 on both sides will be adjusted in time to tighten and straighten the aluminum plate and balance it on the center line for transmission.

[0055] like Figure 10 As shown, a method for adjusting the unwinding tension of a disc-shaped aluminum sheet, the method employing the aforementioned disc-shaped aluminum sheet unwinding tension adjusting device, includes the following steps:

[0056] S1. Before use, use a cutting machine to cut off the surfaces of the aluminum plates that have been in contact with air at both ends. Because aluminum is chemically active, it is easy to oxidize into aluminum oxide when it comes into contact with oxygen in the air. The welding temperature of aluminum oxide is much higher than that of aluminum plates, which increases the difficulty of welding and consumes a lot of resources. Therefore, the method of cutting the edges before welding is adopted to ensure the smooth welding of aluminum plates.

[0057] S2. Then pull out the aluminum plate on the outer periphery of the reel 2, pass it through the roller 6 and the transmission wheel 301, and then extend it to the side of the cable welding position, and make a smooth aluminum sleeve for welding.

[0058] S3. If the aluminum plate has insufficient tension during the transfer process, i.e., there are wrinkles on the surface of the aluminum plate between the roller 6 and the transfer wheel 301, the adjustment mechanism is moved to make the adjustment mechanism drive the roller 6 and the inclined frame 5 to rotate, i.e., the height of the roller 6 is adjusted.

[0059] During operation, before use, the surfaces of the aluminum plates that have been in contact with the air are cut off using a strip cutting machine. This is because aluminum is chemically active and easily oxidizes into aluminum oxide when it comes into contact with oxygen in the air. The welding temperature of aluminum oxide is much higher than that of aluminum plates, which increases the difficulty of welding and consumes a lot of resources. Therefore, the method of cutting the edges before welding is adopted to ensure smooth welding of aluminum plates.

[0060] The aluminum plate on the outer periphery of the reel 2 is then pulled out and passed through the roller 6 and the transmission wheel 301. It then extends to the side of the cable welding position and is used to weld a smooth aluminum sleeve. The welding method here is existing technology and will not be described in detail in this embodiment. If the tension of the aluminum plate is insufficient during the transmission of the aluminum plate, that is, there are wrinkles on the surface of the aluminum plate between the roller 6 and the transmission wheel 301, the adjustment mechanism is controlled to move, so that the adjustment mechanism drives the roller 6 and the inclined frame 5 to rotate, that is, the height of the roller 6 is adjusted. This solves the problem that the height of the roller 6 cannot be adjusted after the entire device is fixed. By adjusting the roller 6 up and down, the tension applied to the surface of the aluminum plate can be changed, thereby keeping the surface of the aluminum plate taut and wrinkle-free during the transmission process, ensuring the quality of the smooth aluminum sleeve manufacturing process.

[0061] Furthermore, the limiting mechanism can apply a certain pressure to both ends of the aluminum plate, so that there will be no large vertical vibration during the movement of the aluminum plate, ensuring the stability and accuracy of the aluminum plate transmission. When adjusting the vertical height of the roller 6, the extension end of the hydraulic cylinder 7 is controlled to move, which drives the top rod 8 and the U-shaped frame 9 to move. The U-shaped frame 9 drives the inclined frame 5 to rotate, and the inclined frame 5 drives the roller 6 to move synchronously. In this way, the vertical height of the roller 6 can be adjusted. Moreover, the top rod 8 and the hydraulic cylinder 7 are located at the bottom center of the U-shaped frame 9, which facilitates the transmission of the aluminum plate by the roller 6 and ensures the stability of the aluminum plate during transmission.

[0062] If, during the transfer of the aluminum plate, the limiting roller 13 does not contact the outer side of the aluminum plate (i.e., the aluminum plate is narrow), the drive mechanism is controlled to move the calipers 12 inside the rectangular frame 11. This causes the two calipers 12 to move synchronously closer to each other, and simultaneously, the calipers 12 also drive the two limiting rollers 13 to move closer together, bringing them into contact with the outer side of the aluminum plate. Thus, under the limiting and guiding effect of the relative limiting rollers 13, a certain pressure is applied to both ends of the aluminum plate, preventing large vertical vibrations during the transfer and ensuring the stability and accuracy of the aluminum plate transfer. Furthermore, it prevents skewing during transfer, which is beneficial for the subsequent production of smooth aluminum sleeves. When it is necessary to transfer two... When adjusting the distance between the limiting rollers 13, the extension end of the hydraulic cylinder 14 in the control drive mechanism moves, causing the extension end to drive the connecting bracket 15 to move upward, which in turn causes the connecting bracket 15 to drive the arc plate 16 to move upward, causing the pressure column 17 to be pressed at the highest point of the arc plate 16. The pressure column 17 drives the caliper 12 to move, and the caliper 12 drives the limiting rollers 13 to move. Since the arc plates 16 on both sides move synchronously, the two limiting rollers 13 also move synchronously. This design not only avoids the problem of needing operators to manually adjust the distance between the limiting rollers 13 in the prior art, but also improves the adjustment efficiency by adjusting the limiting rollers 13 synchronously. This is beneficial for the transmission of aluminum plates of different widths and ensures the stability of the aluminum plates during transmission.

[0063] Since the bottom of the caliper 12 is slidably connected to the rectangular groove 111 via the slider 121, when the pressure column 17 is pressed by the arc plate 16, the pressure column 17 will drive the caliper 12 and the slider 121 to move within the rectangular groove 111. Under the limitation of the rectangular groove 111, it can be ensured that the calipers 12 on both sides and the limiting roller 13 move on the same horizontal plane, which is beneficial for the limiting roller 13 to limit the aluminum plate. In order to facilitate the pressing of the end of the pressure column 17 by the arc plate 16 and drive the pressure column 17 to move, a ball bearing 181 is provided at the end of the pressure column 17. The ball bearing 181 contacts the arc surface of the arc plate 16. Therefore, when the arc plate 16 moves, the ball bearing 181 will rotate at a certain angle, which facilitates the movement of the pressure column 17 and makes it easier to adjust the distance between the two limiting rollers 13. When the pressure column 17 drives the slider 121 to move, the slider 121 will simultaneously pull the elasticity of its side wall. The telescopic rod 20 is stretched. When the surface of the reel 2 is replaced with a different type of aluminum plate, the arc plate 16 is controlled to move away from the end of the pressure column 17, that is, the arc plate 16 no longer squeezes the end of the pressure column 17. After the elastic telescopic rod 20 returns to the stretched state, the limit roller 13 can be easily readjusted. When the arc plate 16 squeezes the ball 181 and drives the pressure column 17 to move, the pressure column 17 will simultaneously drive the L-shaped support rod 22 to move. The L-shaped support rod 22 drives the limit shaft 23 to roll in the limit groove 122. Under the limit of the limit shaft 23 by the limit groove 122, the position of the pressure column 17 can be limited. After the limit roller 13 is adjusted, the stability of the end of the pressure column 17 is improved, and the problem of the pressure column 17 detaching from the surface of the arc plate 16 is avoided. This ensures that there will be no large vertical vibration during the movement of the traction aluminum plate, and ensures the stability and accuracy of the aluminum plate transmission.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for adjusting the unwinding tension of a disc-shaped aluminum plate, characterized in that: The system includes a workbench (1), a reel (2) is rotatably connected to the upper edge of the workbench (1), an aluminum plate is fitted on the outer periphery of the reel (2), a transmission frame (3) is fixedly connected to the upper side of the workbench (1) away from the reel (2), a transmission wheel (301) is rotatably connected inside the transmission frame (3), a horizontal column (4) is fixedly connected to the outer walls of both sides of the transmission wheel (301), the side of the horizontal column (4) away from the transmission wheel (301) is fixedly connected inside the transmission frame (3), a slant frame (5) is rotatably connected to the outer periphery of the two horizontal columns (4), a roller (6) is rotatably connected between the two slant frames (5), an adjustment mechanism is provided above the workbench (1) to move the height of the roller (6) up and down, a limit mechanism is provided above the workbench (1) to prevent the aluminum plate from vibrating up and down during the movement, and to ensure the stability and accuracy of the aluminum plate transmission. The adjustment mechanism includes a hydraulic cylinder (7) fixed to the upper surface of the workbench (1), a push rod (8) fixed to the telescopic part of the hydraulic cylinder (7), a U-shaped frame (9) slidably connected to the lower end of the inclined frame (5), and the top of the push rod (8) hinged to the center of the bottom end of the U-shaped frame (9). The limiting mechanism includes a connecting frame (10) fixed to the upper surface of the workbench (1). There are two connecting frames (10), which are symmetrically arranged relative to the workbench (1). Each connecting frame (10) has a rectangular frame (11) fixed to the side near the aluminum plate. Each rectangular frame (11) has a caliper (12) slidably connected inside. The bottom of the caliper (12) is rotatably connected to a limiting roller (13) via a vertical shaft. The upper surface of the workbench (1) is provided with a driving mechanism, which is used to adjust the distance between the two calipers (12). The driving mechanism includes a second hydraulic cylinder (14) fixed to the upper end face of the workbench (1). A connecting bracket (15) is fixed to the telescopic end of the second hydraulic cylinder (14). Arc plates (16) are fixed to both sides of the upper end face of the connecting bracket (15). A pressure column (17) is fixed to the side of the caliper (12) near the arc plate (16). The end of the pressure column (17) contacts the arc surface of the arc plate (16). Two support rods (18) are fixed to the end of the pressure column (17) near the arc plate (16). A ball (181) is rotatably connected between the two support rods (18). The outer surface of the ball (181) is in contact with the arc surface of the arc plate (16). When the arc plate (16) moves, its arc surface will squeeze the ball (181). The arc plate (16) has an arc groove (21) on the end face near the pressure column (17). The ball (181) contacts the arc groove (21). Two limiting grooves (122) are opened in the arc groove (21). Two L-shaped support rods (22) are fixed to the end face of the pressure column (17) near the arc groove (21). The end of the L-shaped support rod (22) away from the pressure column (17) is rotatably connected to a limiting shaft (23). The limiting shaft (23) passes through the limiting groove (122). The upper surface of the rectangular frame (11) is provided with a rectangular groove (111). The bottom of the caliper (12) is slidably connected to the rectangular groove (111) by a slider (121). The bottom of the slider (121) is rotatably connected to a ball, which is rotatably connected to the rectangular groove (111). A baffle (19) is fixedly connected to the upper edge of the rectangular frame (11), and an elastic telescopic rod (20) is fixedly connected between the baffle (19) and the slider (121). A telescopic spring is sleeved on the outer surface of the elastic telescopic rod (20).

2. The disc-shaped aluminum plate unwinding tension adjusting device according to claim 1, characterized in that: An infrared sensor (24) is fixed to the side of the workbench (1) near the roller (6), with the sensing head of the infrared sensor (24) facing the lower surface of the aluminum plate.

3. A method for adjusting the unwinding tension of a disc-shaped aluminum sheet, wherein the method employs the disc-shaped aluminum sheet unwinding tension adjusting device described in any one of claims 1-2, characterized in that: Includes the following steps: S1. Before use, use a cutting machine to cut off the surfaces of the aluminum plates that have been in contact with air at both ends. Because aluminum is chemically active, it is easy to oxidize into aluminum oxide when it comes into contact with oxygen in the air. The welding temperature of aluminum oxide is much higher than that of aluminum plates, which increases the difficulty of welding and consumes a lot of resources. Therefore, the method of cutting the edges before welding is adopted to ensure the smooth welding of aluminum plates. S2. Then pull out the aluminum plate on the outer periphery of the reel (2), pass it through the roller (6) and the transmission wheel (301), and then extend it to the side of the cable welding position and make a smooth aluminum sleeve for welding. S3. If the aluminum plate is not sufficiently tensioned during the transfer of the aluminum plate, i.e. there are wrinkles on the surface of the aluminum plate between the roller (6) and the transfer wheel (301), the adjustment mechanism is moved to make the adjustment mechanism drive the roller (6) and the inclined frame (5) to rotate, i.e. the height of the roller (6) is adjusted.

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