Unwinding device for metal foil belt

By using a structure consisting of a base frame, bracket, roll, and leveling rollers, combined with a motor-driven bidirectional screw to adjust the distance between the upper and lower leveling rollers and provide lateral protection, the deviation problem during the unwinding process of metal foil strips is solved, achieving stable conveying and adapting to the needs of different specifications of rolls.

CN224257878UActive Publication Date: 2026-05-19SHANGHAI WEIDI METAL NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WEIDI METAL NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Metal foil tape is prone to deviation during unwinding, resulting in unstable transmission and difficulty in adapting to different specifications of rolls.

Method used

The device structure includes a base frame, bracket, roll, leveling roller, and side protection section. The distance between the upper and lower leveling rollers is adjusted by adjusting the mounting section and the bidirectional lead screw driven by the motor. Combined with the side protection section, the metal foil roll is stably positioned and protected.

Benefits of technology

It achieves stability and adaptability in the unwinding process of metal foil strips, ensuring stable delivery of rolls of different specifications.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224257878U_ABST
    Figure CN224257878U_ABST
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Abstract

The utility model discloses an unwinding device of a metal foil tape, which is characterized in that a metal foil roll passes through the lower part through a middle pressure guide shaft, and is close to leveling rollers on the upper and lower sides under the action of an adjusting and mounting part, so that the thickness requirement of the metal foil roll is met, and the metal foil roll is pressed by the leveling rollers on the upper and lower sides, so that the stability of the unwinding process can be maintained; the side protection part protects the front side and the rear side of the metal foil roll to avoid deviation.
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Description

Technical Field

[0001] This utility model relates to the field of metal foil unwinding technology, specifically to a metal foil unwinding device. Background Technology

[0002] Metal foil rolls refer to thin rolls of metal materials, including copper foil and aluminum foil. Unwinding metal foil rolls requires placing the originally rolled metal material on an unwinding device and releasing the roll. During the unwinding and conveying process, the metal foil strip will have a large deviation, which makes the metal foil strip unstable during conveying and causes certain deviations in the production of the metal foil strip. It is necessary to stabilize and protect the unwinding process and to adapt to the different specifications of the rolls. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model discloses a metal foil strip unwinding device. The technical solution adopted includes a base frame, a bracket, a roll, a detachable upper clamp, a metal foil roll, a central fixing plate, a central pressure guide shaft, a right-side fixing frame, a fixing shaft, a top plate, an adjustment mounting part, a central mounting block, a T-shaped rod, a fixed connecting shaft, a leveling roller, and a side protection part. The left side of the base frame is fixed to the bracket, and both ends of the roll are placed on the bracket. The detachable upper clamp is installed on the bracket to stabilize the roll. The metal foil roll is suspended on the roll. The central pressure guide shaft is installed in the middle of the base frame through the central fixing plate. The unwinding end of the metal foil roll extends from the central pressure guide shaft. Below, a right-side fixing bracket is fixed to the right side of the base frame. A fixing shaft is fixed in the middle of the right-side fixing bracket, and a top plate is fixed to the top of the fixing shaft. An adjustment mounting part is set between the top plate and the right-side fixing bracket. The T-shaped rods integrally formed on both sides of the middle mounting block are installed through the adjustment mounting part. A fixing connecting shaft is fixedly connected between the front and rear T-shaped rods. A leveling roller is rotatably installed on the fixing connecting shaft. The distance between the upper and lower leveling rollers can be adjusted by operating the adjustment mounting part. This adjustment can be adjusted according to the actual thickness of the metal foil roll. A side protection part is set on the inner side of the upper middle mounting block to protect the front and rear sides of the metal foil roll.

[0004] As a preferred technical solution of this utility model, the adjustment and installation part includes a guide shaft, a bidirectional lead screw, and a motor. The guide shaft is fixed between the top plate and the right side fixing frame. There are three guide shafts: one is fixed on the right side of the front right side fixing frame, and one is fixed on each side of the rear right side fixing frame. The bidirectional lead screw is rotatably installed on the left side of the front right side fixing frame. The motor is installed on the front top plate. The output shaft of the motor extends from the through hole of the top plate into the bottom and is fixedly connected to the top of the bidirectional lead screw. Four T-shaped rods are movably fitted with the guide shafts and are installed in conjunction with the bidirectional lead screw. When the motor is started, it can drive the bidirectional lead screw to rotate. When it rotates, the two T-shaped rods installed with it move closer to each other or further away. Since the four T-shaped rods are rigidly connected, when multiple support points are connected through a rigid frame, single-point drive can drive the whole synchronous displacement.

[0005] As a preferred technical solution of this utility model, the motor is a stepper motor and is powered by a battery, and the distance between the left and right leveling rollers is 30 centimeters.

[0006] As a preferred technical solution of this utility model, the side protection part includes an inner integral rod, a through groove, a T-shaped baffle, a blind hole, and a pin. The inner integral rod is integrally formed on the inner side of the upper middle fitting block. The inner integral rod has through grooves in the vertical direction. The vertical part of the T-shaped baffle passes through the through groove, and the horizontal part has a through hole. A pin is inserted into the through hole. The lower end of the pin is inserted into the blind hole on the upper surface of the inner integral rod to position the T-shaped baffle. The position of the T-shaped baffle is adjusted according to the width of the roll material.

[0007] As a preferred technical solution of this utility model, a pad is fixed on the inner side of the T-shaped baffle.

[0008] The beneficial effects of this utility model are as follows: the metal foil roll passes under the central pressure shaft, and the leveling rollers on the upper and lower sides approach each other under the action of the adjustment and installation part, which meets the thickness requirements of the metal foil roll. The metal foil roll is pressed by the upper and lower leveling rollers to maintain the stability of the unwinding process. The side protection part protects the front and rear sides of the metal foil roll to prevent it from shifting. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a top view of the structure of this utility model;

[0011] Figure 3 This is a bottom view of the structure of this utility model.

[0012] In the diagram: 1. Base frame; 2. Bracket; 3. Removable upper clamp; 4. Metal foil roll; 5. Middle fixing plate; 6. Middle pressure guide shaft; 7. Right side fixing frame; 8. Fixing shaft; 9. Top plate; 10. Guide shaft; 11. Two-way lead screw; 12. Motor; 13. Middle mounting block; 14. T-shaped rod; 15. Fixed connecting shaft; 16. Leveling roller; 17. Inner integrated rod; 18. Through groove; 19. T-shaped baffle; 191. Blind hole; 20. Pin; 21. Detailed Implementation

[0013] Example 1

[0014] like Figures 1 to 3 As shown, this utility model discloses a metal foil unwinding device. The technical solution includes a base frame 1, a bracket 2, a roll 3, a detachable upper clamp 4, a metal foil roll 5, a central fixing plate 6, a central pressure guide shaft 7, a right-side fixing bracket 8, a fixing shaft 9, a top plate 10, an adjustment and mounting part, a central mounting block 14, a T-shaped rod 15, a fixed connecting shaft 16, a leveling roller 17, and a side protection part. The left side of the base frame 1 is fixed to the bracket 2. The two ends of the roll 3 are placed on the bracket 2. The detachable upper clamp 4 is installed on the bracket 2 to stabilize the roll 3. Metal foil is suspended from the roll 3. The foil roll 5 has a central pressure guide shaft 7 installed on the middle of the base frame 1 via a central fixing plate 6. A right fixing bracket 8 is fixed on the right side of the base frame 1. A fixing shaft 9 is fixed in the middle of the right fixing bracket 8. A top plate 10 is fixed at the top of the fixing shaft 9. An adjustment mounting part is provided between the top plate 10 and the right fixing bracket 8. The T-shaped rods 15 integrally formed on both sides of the central mounting block 14 are installed through the adjustment mounting part. A fixing connecting shaft 16 is fixedly connected between the front and rear T-shaped rods 15. A leveling roller 17 is rotatably installed on the fixing connecting shaft 16. A side protection part is provided on the inner side of the upper central mounting block 14.

[0015] As a preferred technical solution of this utility model, the adjustment and installation part can adjust the distance between the upper and lower leveling rollers 17. Specifically, guide shafts 11 are fixed between the top plate 10 and the right side fixing frame 8. There are three guide shafts 11: one is fixed on the right side of the front right side fixing frame 8, and one is fixed on the left and one on the right side of the rear right side fixing frame 8. A bidirectional screw 12 is rotatably installed on the left side of the front right side fixing frame 8. A motor 13 is installed on the front top plate 10. The output shaft of the motor 13 extends from the through hole of the top plate 10 into the lower part and is fixedly connected to the top of the bidirectional screw 12. Four T-shaped rods 15 are respectively movably fitted with the guide shafts 11 and installed in conjunction with the bidirectional screw 12.

[0016] As a preferred technical solution of this utility model, the motor 13 is a stepper motor and is powered by a battery, and the distance between the left and right leveling rollers 17 is thirty centimeters.

[0017] As a preferred technical solution of this utility model, the side protection part includes an inner integral rod 18, a through groove 19, a T-shaped baffle 191, a blind hole 20, and a pin 21. The inner integral rod 18 is integrally formed on the inner side of the upper middle fitting block 14. The inner integral rod 18 has a through groove 19 in the vertical direction. The vertical part of the T-shaped baffle 191 passes through the through groove 19, and the horizontal part has a through hole. The pin 21 is inserted into the through hole. The lower end of the pin 21 is inserted into the blind hole 20 on the upper surface of the inner integral rod 18 to position the T-shaped baffle 191.

[0018] As a preferred technical solution of this utility model, a pad 192 is fixed on the inner side of the T-shaped baffle 191.

[0019] The working principle of this utility model is as follows: During use, the unwinding end of the metal foil roll passes under the central pressure guide shaft and then passes between the upper and lower leveling rollers. The height of the roll between the leveling rollers is higher than the height under the central pressure guide shaft. According to the actual thickness of the metal foil roll, the motor is started to drive the bidirectional lead screw to rotate. When it rotates, the upper and lower T-shaped rods installed with it approach or move away from each other. Since the four T-shaped rods are rigidly connected, when multiple support points are connected through a rigid frame, single-point drive can drive the overall synchronous displacement. The metal foil roll is pressed by the upper and lower leveling rollers to maintain the stability of the unwinding process. According to the width of the metal foil roll, the position of the T-shaped baffle is manually adjusted so that the pad contacts the side of the roll, and the position of the T-shaped baffle is fixed by the pin.

[0020] Components not described in detail in this article are existing technologies.

[0021] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A metal foil strip unwinding device, comprising a base frame (1), characterized in that: The components include a bracket (2), a reel (3), a detachable upper clamp (4), a metal foil roll (5), a central fixing plate (6), a central pressure guide shaft (7), a right-side fixing bracket (8), a fixing shaft (9), a top plate (10), an adjustment mounting part, a central mounting block (14), a T-shaped rod (15), a fixed connecting shaft (16), a leveling roller (17), and a side protection part; the left side of the base frame (1) is fixed to the bracket (2), and the two ends of the reel (3) are placed on the bracket (2). The detachable upper clamp (4) is installed on the bracket (2) to stabilize the reel (3); the metal foil roll (5) is suspended on the reel (3); the middle of the base frame (1) is connected by a... A central fixing plate (6) is installed with a central pressure guide shaft (7); a right fixing frame (8) is fixed on the right side of the base frame (1), a fixing shaft (9) is fixed in the middle of the right fixing frame (8), and a top plate (10) is fixed at the top of the fixing shaft (9); an adjustment mounting part is provided between the top plate (10) and the right fixing frame (8), and the T-shaped rods (15) integrally formed on both sides of the central mounting block (14) are installed through the adjustment mounting part, and a fixing connecting shaft (16) is fixedly connected between the front and rear T-shaped rods (15), and a leveling roller (17) is rotatably installed on the fixing connecting shaft (16); a side protection part is provided on the inner side of the upper central mounting block (14).

2. The unwinding device for metal foil strip according to claim 1, characterized in that: The adjustment and installation part includes a guide shaft (11), a double-acting screw (12), and a motor (13); the guide shaft (11) is fixed between the top plate (10) and the right side fixing frame (8). There are three guide shafts (11), one fixed on the right side of the front right side fixing frame (8) and one fixed on the left and one on the right side of the rear right side fixing frame (8); the double-acting screw (12) is rotatably installed on the left side of the front right side fixing frame (8), and the motor (13) is installed on the front top plate (10). The output shaft of the motor (13) extends from the through hole of the top plate (10) into the bottom and is fixedly connected to the top of the double-acting screw (12); the four T-shaped rods (15) are respectively movably fitted with the guide shaft (11) and installed in conjunction with the double-acting screw (12).

3. The unwinding device for metal foil strip according to claim 2, characterized in that: The motor (13) is a stepper motor and is powered by a battery.

4. The unwinding device for metal foil strip according to claim 1, characterized in that: The distance between the leveling rollers (17) on the left and right sides is thirty centimeters.

5. The unwinding device for metal foil strip according to claim 1, characterized in that: The side protection part includes an inner integral rod (18), a through groove (19), a T-shaped baffle (191), a blind hole (20), and a pin (21); the inner integral rod (18) is integrally formed on the inner side of the upper middle fitting block (14). The inner integral rod (18) has a through groove (19) in the vertical direction. The vertical part of the T-shaped baffle (191) fits through the through groove (19), and the horizontal part has a through hole. The pin (21) is inserted into the through hole. The lower end of the pin (21) is inserted into the blind hole (20) on the upper surface of the inner integral rod (18) to position the T-shaped baffle (191).

6. The unwinding device for metal foil strip according to claim 5, characterized in that: A pad (192) is fixed on the inner side of the T-shaped baffle (191).