Unwinding device capable of automatically adjusting surface tension of aluminum foil

By incorporating a lever structure and gear transmission into the unwinding equipment, the tension of the aluminum foil roll is automatically adjusted, solving the tension mismatch problem caused by changes in the aluminum foil roll diameter. This improves the quality of finished products and work efficiency, and simplifies the aluminum foil roll replacement process.

CN117284846BActive Publication Date: 2025-12-09江苏爱箔乐铝箔制品有限公司
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Patent Information

Application Number
CN202311371283.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-10-23
Publication Date
2025-12-09
Estimated Expiration
2043-10-23

AI Technical Summary

Technical Problem

Existing unwinding equipment suffers from tension mismatch due to changes in the diameter of the aluminum foil roll during the unwinding process. This leads to the aluminum foil being torn, stacked, or loosened, affecting the quality and pass rate of the finished product.

Method used

An unwinding device for automatically adjusting the surface tension of aluminum foil was designed. By setting a lever structure between a crossbar and a support plate, the support plate is made to fit the aluminum foil roll at any time by the action of a spring, so that the movable frame can be changed at any time to adjust the tension. Combined with gear transmission and a screw rod structure, convenient replacement of aluminum foil rolls and tension adjustment can be achieved.

Benefits of technology

It enables automatic tension adjustment during changes in the diameter of the aluminum foil roll, avoiding excessive or insufficient tension, thus improving finished product quality and work efficiency, and simplifying the aluminum foil roll replacement process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a unwinding equipment capable of automatically adjusting surface tension of aluminum foil, and relates to the field of unwinding equipment, which comprises a workbench, a fixed plate is fixedly installed on one side of the workbench, a second rotating rod is movably installed at one end of the fixed plate, a connecting rod is arranged at one end of the second rotating rod, a horizontal rod is movably installed at one end of the connecting rod, a movable frame is movably installed at one end of the horizontal rod, a second rotating stick is movably installed on one side of the movable frame, and a limiting rod is fixedly installed in the workbench. The horizontal rod and the supporting plate are arranged, in the unwinding process, the diameter of the aluminum foil roll is continuously reduced, the supporting plate is moved upward under the action of the first spring, the horizontal rod forms a lever structure under the action of the limiting rod when the supporting plate is moved upward, the movable frame is moved downward, the aluminum foil roll is pulled in the process that the movable frame is moved downward, and the unwinding tension of the aluminum foil roll can be changed.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of unwinding equipment, in particular to the unwinding equipment capable of automatically adjusting the surface tension of aluminum foil. BACKGROUND

[0002] Aluminum foil is a soft metal film, not only has the advantages of moisture-proof, air-tight, light-shielding, wear-resistant, aroma preservation, non-toxic and odorless, but also has elegant silver-white luster, and is easy to process into various beautiful patterns and patterns, so it is widely used. Aluminum foil is a kind of perfect packaging material with many excellent properties, and fully shows its broad application prospect in many fields.

[0003] In the production of aluminum foil, the aluminum foil needs to be rolled into shape. In this process, the unwinding machine is used for batch work. The use of the unwinding machine can improve the conveying efficiency of the aluminum foil, so that the rolling operation can be carried out continuously, and the work efficiency can be improved, greatly improving the work output. Therefore, in the processing process of aluminum foil, the factory will be equipped with the corresponding unwinding equipment.

[0004] The existing unwinding equipment needs to continuously adjust the tension regulator of the unwinding equipment during unwinding process, because the diameter of the aluminum foil roll affects the tension of the unwinding equipment. Too large tension will cause the aluminum foil to be pulled off, and too small tension will cause the aluminum foil to be stacked and loose. The existing unwinding equipment adjusts the tension by moving the rotating roller. The movement of the rotating roller is not at any time, but is automatically adjusted after a certain period or a certain time during unwinding. However, during the unwinding process, the diameter is constantly decreasing, which causes the tension and diameter to be mismatched for a period of time, which may cause a small number of products to be of poor quality, thereby affecting the overall qualified rate. SUMMARY

[0005] Therefore, the purpose of the present application is to provide the unwinding equipment capable of automatically adjusting the surface tension of aluminum foil to solve the technical problems mentioned in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: the unwinding equipment capable of automatically adjusting the surface tension of aluminum foil, comprising a workbench, a fixed plate is fixedly installed on one side of the workbench, a second rotating rod is movably installed at one end of the fixed plate, a connecting rod is arranged at one end of the second rotating rod, a horizontal rod is movably installed at one end of the connecting rod, a movable frame is movably installed at one end of the horizontal rod, a second rotating roller is movably installed on one side of the movable frame, a limiting rod is fixedly installed inside the workbench, and the limiting rod and the horizontal rod are connected in rotation, a first spring is installed at one end of the horizontal rod, a supporting plate is fixedly installed at one end of the connecting rod, a movable plate is movably installed on the other side of the workbench, a rotating shaft is installed at one end of the movable plate, and the movable plate and the workbench are connected through the rotating shaft.

[0007] By adopting the technical scheme, the cross rod and the supporting plate are arranged, in the unwinding process, the diameter of the aluminum foil roll is continuously reduced, the supporting plate is moved up under the action of the first spring, the cross rod forms a lever structure under the action of the limiting rod when the supporting plate is moved up, so that the movable frame is moved down, the aluminum foil roll is pulled in the moving process of the movable frame, and the unwinding tension of the aluminum foil roll can be changed, the diameter of the aluminum foil roll is continuously reduced in the unwinding process, the supporting plate can be always attached to the aluminum foil roll under the action of the first spring due to the attached arrangement of the supporting plate, the movable frame can be changed at any time, the tension suitable for unwinding can be always provided, and the problem that the unwinding tension of the aluminum foil roll is too large or too small in the unwinding process due to the fact that the tension cannot be adjusted at any time is avoided, and the quality of the rolled aluminum foil product is affected.

[0008] The application further provides that the movable plate is fixedly provided with a fixed rod on one side, and the fixed rod is provided with a movable rod on one side; the fixed rod and the movable rod are connected through a chain; and a second gear is fixedly arranged at one end of the movable rod.

[0009] By adopting the technical scheme, when the movable plate rotates, the fixed rod can be driven to rotate, so that the second gear is driven to rotate through the chain transmission, transmission is realized, more labor can be saved, and subsequent work is facilitated.

[0010] The application further provides that the second gear is provided with a first gear on one side, and a screw rod is fixedly arranged on one side of the first gear; a spiral groove is formed in the outer wall of the screw rod; and an extrusion block is arranged on one side of the screw rod; and the second gear is meshingly connected with the first gear.

[0011] By adopting the technical scheme, when the screw rod rotates, the extrusion block can be displaced, so that the extrusion block can extrude the cross rod, and the aluminum foil roll can be replaced more conveniently; and the number of teeth of the second gear is different from that of the first gear, so that the second gear can rotate by a smaller angle to make the screw rod and the extrusion block work normally.

[0012] The application further provides that a sliding block is fixedly arranged on one side of the extrusion block and arranged in the spiral groove; and the sliding block is slidingly connected with the screw rod.

[0013] By adopting the technical scheme, the extrusion block can be moved more labor-savingly, and the sliding block is limited by the screw rod to avoid the problem that the position of the extrusion block deviates in the moving process, so that the work of the extrusion block can be more stable.

[0014] The workbench is further provided with a first support frame fixedly installed on both sides of the workbench, a first rotating rod movably installed at one end of the first support frame, a drive box installed on one side of the workbench, and a drive assembly arranged in the drive box and connected to the first rotating rod.

[0015] By adopting the above technical scheme, the first rotating rod is driven to rotate by the drive assembly after the drive box is started, so that the winding operation is performed without the need of an additional driving device.

[0016] The workbench is further provided with a second support frame fixedly installed in the middle of the workbench, a first rotating rod movably installed at one end of the second support frame, and two groups of the second support frame and two groups of the first rotating rod.

[0017] By adopting the above technical scheme, the first rotating rod is supported by the second support frame during the operation, so that the aluminum foil is supported, and the problem that the aluminum foil is not well supported during the operation and thus contacts the workbench to cause abrasion is avoided.

[0018] The workbench is further provided with a limiting block movably installed on one side of the workbench, a second spring fixedly installed on one side of the limiting block, a vertical rod fixedly installed at one end of the limiting block, a guide rod fixedly installed at the other end of the limiting block, and a guide groove formed in one side of the workbench and allowing the guide rod to move.

[0019] By adopting the above technical scheme, the limiting block is limited to move by the second spring, so that the movable plate is prevented from rotating during the operation to affect the operation, the vertical rod provides a force point when the limiting block needs to be moved, so that the worker can save labor during the pushing process, and the guide rod and the guide groove limit the movement of the limiting block to prevent the movement from deviating.

[0020] The movable plate is further provided with an arc-shaped groove formed in one side of the movable plate, the arc-shaped groove is matched with the second rotating rod, and a rotating bearing for the second rotating rod is arranged in the arc-shaped groove.

[0021] By adopting the above technical scheme, the movable plate is not affected by the second rotating rod during the rotation by the arc-shaped groove formed in one side of the movable plate, and the second rotating rod can save labor during the rotation by the rotating bearing arranged in the arc-shaped groove.

[0022] In summary, the present application mainly has the following advantages:

[0023] The present application sets up the cross rod and the supporting plate, in the unwinding process, the diameter of the aluminum foil roll will become smaller, causing the supporting plate to move up under the action of the first spring, when the supporting plate moves up, the cross rod forms a lever structure under the action of the limiting rod, so that the movable frame moves down, in the process of moving down, the aluminum foil roll is pulled, thereby the unwinding tension of the aluminum foil roll can be changed, ensuring that the diameter of the aluminum foil roll decreases in the unwinding process, since the supporting plate is attached, the supporting plate can always be attached to the aluminum foil roll under the action of the first spring, realizing the change of the movable frame at any time, always providing adaptive tension for unwinding, avoiding the problem that the unwinding tension of the aluminum foil roll is too large or too small in the unwinding process due to the fact that the tension cannot be adjusted at any time, affecting the quality of the rolled aluminum foil product;

[0024] The present application sets up the movable plate and the rotating shaft, in the process of replacing the aluminum foil roll, the movable plate can be rotated, the aluminum foil roll can be inserted into the second rotating rod more conveniently, and the arc-shaped groove opened on one side of the movable plate can ensure that the movable plate is not affected by the second rotating rod in the rotating process, ensuring the working stability and improving the working efficiency;

[0025] The present application sets up the second gear and the spiral rod, when the movable plate rotates, the fixed rod can be driven to rotate, so that the second gear drives the first gear to rotate, thereby realizing the displacement of the extrusion block, in the rotating process of the movable plate, the supporting plate moves down, preventing the supporting plate from affecting the replacement in the process of replacing the aluminum foil roll. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall schematic view of the present application;

[0027] Figure 2 It is the internal schematic view of the workbench of the present application;

[0028] Figure 3 It is the structure schematic view of the movable plate of the present application;

[0029] Figure 4 It is the position schematic view of the limiting block of the present application;

[0030] Figure 5 It is the position schematic view of the guide rod of the present application;

[0031] Figure 6 It is the structure schematic view of the cross rod of the present application;

[0032] Figure 7 It is the position schematic view of the driving box of the present application;

[0033] Figure 8 It is the position schematic view of the sliding block of the present application.

[0034] In the diagram: 1. Workbench; 2. First support frame; 3. First rotating rod; 4. Second support frame; 5. First rotating roller; 6. Movable frame; 7. Second rotating roller; 8. Fixed plate; 9. Second rotating rod; 10. Connecting rod; 11. Crossbar; 12. First spring; 13. Limiting rod; 14. Helical rod; 15. Gear No. 1; 16. Gear No. 2; 17. Extrusion block; 18. Fixed rod; 19. Movable plate; 20. Rotating shaft; 21. Movable rod; 22. Slider; 23. Limiting block; 24. Vertical rod; 25. Second spring; 26. Guide rod; 27. Support plate; 28. Drive box. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of the present invention will now be described.

[0037] Unwinding equipment that can automatically adjust the surface tension of aluminum foil, such as Figures 1-8 As shown, the system includes a workbench 1. A fixed plate 8 is fixedly installed on one side of the workbench 1, and a second rotating rod 9 is movably installed on one end of the fixed plate 8. A connecting rod 10 is provided on one end of the second rotating rod 9, and a crossbar 11 is movably installed on one end of the connecting rod 10. A movable frame 6 is movably installed on one end of the crossbar 11, and a second rotating roller 7 is movably installed on one side of the movable frame 6. A limit rod 13 is fixedly installed inside the workbench 1, and the limit rod 13 is rotatably connected to the crossbar 11. A first spring 12 is installed on one end of the crossbar 11, and a support plate 27 is fixedly installed on one end of the connecting rod 10. A movable plate 19 is movably installed on the other side of the workbench 1, and a rotating shaft 20 is installed on one end of the movable plate 19. The movable plate 19 and the workbench 1 are connected by the rotating shaft 20. When the aluminum foil roll is connected to the first rotating rod 3, the diameter of the aluminum foil roll decreases continuously as it is collected by the first rotating rod 3. This causes the support plate 27, which is attached to the aluminum foil roll, to move upward under the action of the first spring 12. This causes one end of the crossbar 11 to tilt upward. When one end of the crossbar 11 tilts upward, the other end of the crossbar 11 tilts downward under the action of the limiting rod 13. This causes the movable frame 6 to move. When the movable frame 6 moves, it drives the second rotating roller 7 to move. At this time, the aluminum foil roll passing through the middle of the second rotating roller 7 is subjected to tension, which causes the tension of the entire aluminum foil to change. This avoids the problem that the tension gradually decreases due to the continuous reduction in the diameter of the aluminum foil roll during unwinding, which would affect normal operation.

[0038] Please see Figures 2-3The movable plate 19 is fixedly installed on one side of the fixed rod 18, and the fixed rod 18 is provided with a movable rod 21 on one side, and the fixed rod 18 and the movable rod 21 are connected through a chain, and the second gear 16 is fixedly installed on one end of the movable rod 21. By setting the fixed rod 18 and the movable rod 21, when the movable plate 19 rotates, the fixed rod 18 can be driven to rotate, so that the second gear 16 is driven to rotate through the chain, the transmission is realized, and more labor can be saved, and subsequent work is facilitated.

[0039] Please refer to Figure 3 The second gear 16 is provided with a first gear 15 on one side, and the first gear 15 is fixedly installed on one side of the screw rod 14, and the screw rod 14 is provided with a screw groove on the outer wall, and the screw rod 14 is provided with an extrusion block 17 on one side. By setting the screw rod 14 and the extrusion block 17, when the screw rod 14 rotates, the extrusion block 17 can be displaced, so that the extrusion block 17 can extrude the cross rod 11, and the aluminum foil roll can be replaced more conveniently. The second gear 16 and the first gear 15 are engagedly connected. Since the number of teeth of the second gear 16 and the first gear 15 is different, the second gear 16 rotates by a smaller angle to make the screw rod 14 and the extrusion block 17 work normally.

[0040] Please refer to Figure 8 The extrusion block 17 is fixedly installed on one side of the sliding block 22, and the sliding block 22 is installed in the screw groove. The sliding block 22 and the screw rod 14 are connected in sliding mode. By setting the sliding block 22, the extrusion block 17 can move more labor-savingly, and the sliding block 22 is limited by the screw rod 14, so that the position deviation of the extrusion block 17 during movement is avoided, and the work of the extrusion block 17 is more stable.

[0041] Please refer to Figure 7 The first support frame 2 is fixedly installed on both sides of the workbench 1, and the first support frame 2 is movably installed on one end of the first rotating rod 3. The driving box 28 is installed on one side of the workbench 1, and the driving box 28 is provided with a driving assembly connected to the first rotating rod 3. By setting the first rotating rod 3 and the driving box 28, the first rotating rod 3 can be driven to rotate by the driving assembly after the driving box 28 is started, and the winding operation can be performed without additional driving device.

[0042] Please refer to Figure 7 The second support frame 4 is fixedly installed in the middle of the workbench 1, and the first rotating rod 5 is movably installed on one end of the second support frame 4. The number of the second support frame 4 is two groups, and the number of the first rotating rod 5 is two groups. By setting the second support frame 4 and the first rotating rod 5, the second support frame 4 can support the first rotating rod 5 during work, so as to support the aluminum foil sheet, and avoid the problem that the aluminum foil sheet does not have good supporting force during work, thereby avoiding the abrasion caused by contacting the workbench 1.

[0043] Please refer to Figure 5 , the workbench 1 side movable mounting limit block 23, and the limit block 23 side is fixedly installed with the second spring 25, through setting limit block 23 and the second spring 25, make the limit block 23 under the action of the second spring 25 can play a limiting effect to the movable plate 19, prevent movable plate 19 in the working process rotates, cause the influence to work, limit block 23 one end is fixedly installed with vertical rod 24, through setting vertical rod 24, when need to move limit block 23, vertical rod 24 can provide stress point, make the staff in the process of pushing can be more labor-saving, and the limit block 23 other end is fixedly installed with guide rod 26, the workbench 1 side is set with the guide slot that guide rod 26 moves, through setting guide rod 26 and guide slot, make the limit block 23 in the process of moving can be limited, prevent the problem of deviation that moves.

[0044] Please refer to Figure 3 , the movable plate 19 side is set with arc slot, and the arc slot is matched with the second rotating rod 9, and the arc slot is internally provided with a rotating bearing for the rotation of the second rotating rod 9, and the arc slot is internally provided with a rotating bearing for the rotation of the second rotating rod 9.

[0045] The working principle of the present application is as follows: during unwinding, the aluminum foil roll is installed and then the drive box 28 is started, so that the first rotating rod 3 is rotated by the driving assembly, and when the first rotating rod 3 rotates, the aluminum foil roll is pulled to make the second rotating rod 9 rotate.

[0046] Further, during the rotation of the second rotating rod 9, the diameter of the aluminum foil roll is continuously reduced under the collection of the first rotating rod 3, so that the supporting plate 27 attached to the aluminum foil roll is continuously moved upward under the action of the first spring 12, thereby driving the one end of the horizontal rod 11 to tilt upward, and under the action of the limiting rod 13, the other end of the horizontal rod 11 is tilted downward, thereby pulling the movable frame 6 to move, and when the movable frame 6 moves, the second rotating stick 7 is moved, and at this time, the aluminum foil roll passing through the middle of the second rotating stick 7 is subjected to a pulling force, so that the tension of the entire aluminum foil changes, thereby avoiding the problem that the tension gradually decreases due to the continuous reduction of the diameter of the aluminum foil roll during unwinding, thereby affecting normal work.

[0047] Further, when the unwinding is completed, the aluminum foil roll needs to be replaced, at this time, the vertical rod 24 is pushed to move the limit block 23, and at the same time, the movement of the limit block 23 extrudes the second spring 25, and at the same time, the guide rod 26 moves in the guide slot, and when the limit block 23 no longer contacts the movable plate 19, the movable plate 19 is no longer limited by the limit block 23.

[0048] Further, the movable plate 19 is rotated at this time, and when the movable plate 19 is rotated, the fixed rod 18 is rotated, when the fixed rod 18 is rotated, the chain is moved, so that the movable rod 21 is rotated, when the movable rod 21 is rotated, the second gear 16 is rotated, at this time, the second gear 16, the first gear 15 engaged with the second gear 16 is rotated, at this time, the screw rod 14 rotates, so that the sliding block 22 moves in the screw groove, the extrusion block 17 is displaced, because the supporting plate 27 is at the highest point at this time, when the extrusion block 17 is displaced, the cross rod 11 can be extruded, so that the supporting plate 27 is lowered, at this time, the aluminum foil roll is replaced;

[0049] When the aluminum foil roll is replaced, the movable plate 19 is rotated and reset, and the limiting block 23 is automatically reset under the action of the second spring 25.

[0050] Although the embodiments of the present application have been shown and described, the specific embodiments are only an explanation of the present application, and are not a limitation of the application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A device for unwinding aluminum foil with automatic adjustment of the surface tension of the foil, comprising a worktable (1), characterized in that: Said workbench (1) one side fixedly installed with fixed plate (8), and the fixed plate (8) one end movably installed with second rotating rod (9), the second rotating rod (9) one end is provided with connecting rod (10), and the connecting rod (10) one end movably installed with crossbar (11), the crossbar (11) one end movably installed with movable frame (6), and movable frame (6) one side movably installed with second rotating stick (7), Said workbench (1) inside fixedly installed with limit rod (13), and the limit rod (13) and crossbar (11) between for the rotation connection, the crossbar (11) one end is installed with first spring (12) the connecting rod (10) one end fixedly installed with the supporting plate (27), Said workbench (1) other side movably installed with movable plate (19), and movable plate (19) one end is installed with rotating shaft (20), and movable plate (19) and workbench (1) between through rotating shaft (20) are connected, movable plate (19) one side fixedly installed with fixed rod (18), and the fixed rod (18) one side is provided with movable rod (21), the fixed rod (18) and movable rod (21) between through chain are connected, and movable rod (21) one end fixedly installed with second gear (16), the second gear (16) one side is provided with first gear (15), and first gear (15) one side fixedly installed with spiral rod (14), the spiral rod (14) outer wall is opened spiral groove, and the spiral rod (14) one side is provided with extrusion block (17), the second gear (16) and first gear (15) meshing connection, the extrusion block (17) one side fixedly installed with sliding block (22), and sliding block (22) is installed in spiral groove interior, the sliding block (22) and spiral rod (14) between for sliding connection, the workbench (1) one side movably installed with limit block (23), and limit block (23) one side fixedly installed with second spring (25), the limit block (23) one end fixedly installed with vertical rod (24), and limit block (23) other end fixedly installed with guide rod (26), the workbench (1) one side is opened for the guide rod (26) movable guide slot, limit block (23) under the action of second spring (25) can to movable plate (19) play the limiting effect, prevent movable plate (19) in the working process rotates, the movable plate (19) one side is opened arc slot, and arc slot is matched with second rotating rod (9), and arc slot interior is installed with the rotating bearing for the second rotating rod (9) rotation, when the uncoiling is completed, need to replace the aluminum foil roll, at this time, push vertical rod (24), make limit block (23) move, while the movement of limit block (23) extrudes second spring (25), while guide rod (26) moves in guide slot, when limit block (23) no longer contact movable plate (19), at this time, movable plate (19) is no longer limited by limit block (23).

2. The unwinding apparatus capable of automatically adjusting the surface tension of aluminum foil according to claim 1, wherein: Said workbench (1) both sides are fixedly installed with first support frame (2), and first support frame (2) one end is movably installed with first rotating rod (3), the one side of workbench (1) is installed with drive box (28), and drive box (28), and drive box (28) is provided with drive gradually connected to first rotating rod (3) inside.

3. The unwinding apparatus capable of automatically adjusting the surface tension of aluminum foil according to claim 2, characterized in that: Said workbench (1) middle part is fixedly installed with second support frame (4), and second support frame (4) one end is movably installed with first rotating stick (5), the number of second support frame (4) is two groups, and the number of first rotating stick (5) is two groups.

Citation Information

Patent Citations

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    CN213737715U

  • Viscous thin material roll conveying mechanism

    CN219546213U