Uncoiling conical head fixing mechanism of aluminum foil splitting machine
By adding a sleeve and guide rod connection to the uncoiler of the aluminum foil slitting machine, the problems of cone head wobbling and noise were solved, ensuring the stable operation of the aluminum foil slitting machine and product quality, and simplifying maintenance.
Patent Information
- Application Number
- CN202422936184.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-29
AI Technical Summary
There is a gap between the cone head and the bearing sleeve of the existing aluminum foil slitting machine unwinder, which causes the cone head to shake and make noise, affecting product quality and operating environment.
By adding a sleeve between the cone and the bearing sleeve, and using a guide rod and M5 set screw for fixed connection, combined with the design of copper sleeve and spring, the stability of the rotating shaft is ensured and friction is reduced.
This achieved smooth operation of the cone head, improved product quality, reduced noise, simplified maintenance, and enhanced the stability and durability of the equipment.
Smart Images

Figure CN223480453U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum foil uncoiling machine technology, specifically to an uncoiling cone fixing mechanism for an aluminum foil slitting machine. Background Art
[0002] Existing aluminum foil slitting and uncoiling machines are designed with a gap between the cone and the bearing sleeve to allow the shaft to rotate. However, during the aluminum foil slitting process, the uncoiling cone rotates at high speed. Because of the gap between the cone and the bearing sleeve, the cone shakes during high-speed operation, which affects the quality of some products and makes it difficult to meet product quality requirements. Furthermore, the uncoiling machine generates significant noise during operation, resulting in a poor working environment for on-site operators. Utility Model Content
[0003] To overcome the above shortcomings, the purpose of this utility model is to provide an uncoiling cone fixing mechanism for an aluminum foil slitting machine. By adding a sleeve to fill the preset gap, the cone's operation becomes more stable, ensuring product quality, and simultaneously reducing the noise generated by the aluminum foil slitting machine.
[0004] Technical solution: This utility model discloses an uncoiling cone fixing mechanism for an aluminum foil slitting machine, comprising:
[0005] A cone-shaped head, comprising a tapered mounting portion and a rotating shaft for rotation, the mounting portion being fixedly connected to the outside of the rotating shaft;
[0006] A bearing sleeve is fitted over the outside of the rotating shaft, and a preset gap exists between the bearing sleeve and the rotating shaft. The bearing sleeve is fixedly connected to the mounting part.
[0007] A sleeve is installed within the preset gap, the sleeve is sleeved outside the rotating shaft, and the bearing sleeve is sleeved outside the sleeve;
[0008] A roller, the end of which is fixedly connected to the rotating shaft.
[0009] Furthermore, it also includes an uncoiling seat, which is sleeved on the outside of the roll.
[0010] Furthermore, the spacing of the preset gap is less than 0.4 mm.
[0011] Furthermore, a guide rod is provided between the mounting part and the bearing sleeve, and the guide rod is used to fix the mounting part and the bearing sleeve together by means of an M5 set screw.
[0012] Furthermore, a spring is sleeved on the outside of the guide rod, and the spring is in a compressed state.
[0013] Furthermore, the sleeve is made of copper, and the surface of the sleeve has several circular holes that penetrate the sleeve wall.
[0014] The beneficial effects of the utility model are:
[0015] (1) The tapered mounting part works in conjunction with the rotating shaft to provide more stable support and ensure structural stability during high-speed rotation;
[0016] (2) By using the layered design of bearing sleeve and bushing, the cone head of the rotating shaft is prevented from shaking during operation, resulting in unstable operation and product quality cannot be guaranteed.
[0017] (3) The mounting part is fixedly connected to the bearing sleeve by the guide rod and M5 set screw, which makes the assembly simpler and facilitates later maintenance and replacement.
[0018] (4) A spring is fitted on the outside of the guide rod to prevent the cone from becoming difficult to extend or retract due to increased friction caused by the reduced distance between the cone and the bearing sleeve. Attached Figure Description
[0019] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances. In the drawings:
[0020] Figure 1 This is a schematic diagram of the structure of the uncoiling cone fixing mechanism of the aluminum foil slitting machine described in this utility model;
[0021] Figure 2 This is a schematic diagram of the sleeve shown in this utility model.
[0022] In the diagram: 1. Cone head; 11. Mounting part; 12. Rotating shaft; 2. Bearing sleeve; 21. Preset gap; 3. Sleeve; 4. Roller; 5. Uncoiling seat; 6. Guide rod; 61. Spring. DETAILED DESCRIPTION
[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The implementation methods of this utility model will now be described based on its overall structure.
[0025] like Figure 1 and Figure 2 As shown, this utility model discloses an uncoiling cone fixing mechanism for an aluminum foil slitting machine, comprising:
[0026] A cone head 1, comprising a cone-shaped mounting portion 11 and a rotating shaft 12 for rotation, wherein the mounting portion 11 is fixedly connected to the outside of the rotating shaft 12;
[0027] Bearing sleeve 2, the bearing sleeve 2 is sleeved on the outside of the rotating shaft 12, there is a preset gap 21 between the bearing sleeve 2 and the rotating shaft 12, and the bearing sleeve 2 is fixedly connected to the mounting part 11;
[0028] Sleeve 3, sleeve 3 is installed in the preset gap 21, sleeve 3 is sleeved on the outside of the rotating shaft 12, and bearing sleeve 2 is sleeved on the outside of sleeve 3;
[0029] Roller 4, the end of which is fixedly connected to the rotating shaft 12.
[0030] Using the above structure, the cone head 1 is fixedly connected to an external drive device (not shown). The rotating shaft 12 is locked and fixed to the drive device. Since the mounting part 11 of the cone head 1 is fixedly connected to the rotating shaft 12, the entire cone head 1 rotates along with the drive device when the rotating shaft 12 rotates. The end of the rotating shaft 12 is connected to a roller 4 for winding aluminum foil. The roller 4 is fixedly connected to the rotating shaft 12 in the cone head 1. The roller 4 provides direct physical support to the aluminum foil roll and, as a rotating carrier, ensures the aluminum foil roll remains stable during high-speed unwinding. To further enhance the supporting effect of the rotating shaft 12, a bearing sleeve 2 is also fitted onto the outside of the rotating shaft 12. The bearing sleeve 2 is fixedly connected to the mounting part 11 of the cone head 1. When the cone head 1 rotates, the bearing sleeve 2 rotates synchronously. Since the bearing sleeve 2 is fitted onto the outside of the rotating shaft 12, a predetermined gap 21 exists between the bearing sleeve 2 and the rotating shaft 12. Since the cone head 1 may wobble and produce a lot of noise when the shaft 12 rotates at high speed, in order to overcome this defect, the sleeve 3 is installed in the preset gap 21. The sleeve 3 can provide support for the shaft 12 and prevent it from wobbleing a lot when it rotates at high speed.
[0031] Specifically, the rotating shaft 12, as the core component for power transmission, connects to the drive device and transmits power to the cone head 1 and the roller 4, enabling the aluminum foil to unfold smoothly while rotating axially. The bearing sleeve 2 is fitted onto the outside of the rotating shaft 12 and engages with the sleeve 3 through a preset internal gap 21. The sleeve 3 is a thin-walled annular workpiece. The sleeve 3 provides rotational support for the rotating shaft 12, reducing the possibility of wobbling when the rotating shaft 12 rotates at high speed and ensuring smooth and efficient rotation.
[0032] In this embodiment, the uncoiling seat 5 is located on the outer side of the end of the roller 4, and is designed to cooperate with the roller 4, fitting onto the outer surface of the roller 4. The uncoiling seat 5 provides support and restraint for the roller 4. Through contact with the outer surface of the roller 4, the uncoiling seat 5 provides additional lateral support for the roller 4. When the roller 4 rotates at high speed, it may experience slight displacement or vibration due to axial load. The uncoiling seat 5 effectively restricts the lateral movement of the roller 4, improving operational stability. Therefore, the end of the roller 4 is not only securely fixed by the restraint of the uncoiling seat 5, but also avoids problems such as aluminum foil roll jumping or eccentricity caused by unstable rotation of the shaft 12.
[0033] In this embodiment, a preset gap 21 exists between the rotating shaft 12 and the bearing sleeve 2, and the sleeve 3 is installed within this gap. The size of the gap is a design parameter, controlled within a range of less than 0.4 mm. This provides installation space for the sleeve 3, ensuring that the sleeve 3 guides and supports the rotation of the rotating shaft 12, while also reducing the possibility of the rotating shaft 12 wobbling.
[0034] In this embodiment, the guide rod 6 is located between the mounting part 11 and the bearing sleeve 2, serving as the core component for connection and guidance. One end of the guide rod 6 is fixedly connected to the mounting part 11, and the other end is fixedly connected to the bearing sleeve 2. The guide rod 6 is fastened by an M5 set screw, fixing the mounting part 11 and the bearing sleeve 2 together. The guide rod 6 provides a reliable fixing effect while also facilitating disassembly and maintenance. In addition, a spring 61 is provided outside the guide rod 6. The spring 61 is sleeved on the outside of the guide rod 6 and located between the mounting part 11 and the bearing sleeve 2. The spring 61 is always in a compressed state, providing a certain amount of rebound force. Since a sleeve 3 is installed between the bearing sleeve 2 and the rotating shaft 12, there is friction between the bearing sleeve 2 and the sleeve 3. When it is necessary to disassemble the bearing sleeve 2, a corresponding resistance will be generated. Therefore, the spring 61 can provide a corresponding elastic force to help the cone head 1 extend and retract, adjusting the distance between the mounting part 11 and the bearing sleeve 2.
[0035] In this embodiment, the sleeve 3 is made of copper. Due to copper's good thermal conductivity, heat may be generated between the shaft 12 and the bearing sleeve 2 during high-speed rotation. The copper sleeve 3 can quickly conduct this heat to the outside, preventing overheating or material deformation caused by temperature accumulation. Furthermore, copper has a smooth surface and a low coefficient of friction, providing a certain degree of lubrication. The friction between the sleeve 3 and the shaft 12 and bearing sleeve 2 is low, providing support while improving the smoothness of rotation. In addition, the circular holes on the surface of the sleeve 3 further accelerate heat dissipation. The high thermal conductivity of the copper sleeve 3 combined with the circular hole design constitutes a highly efficient heat dissipation system, maintaining stable component temperature during high-speed, high-load operation.
[0036] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A fixing mechanism for the uncoiling cone head of an aluminum foil slitting machine, characterized in that, include: A cone-shaped head, comprising a tapered mounting portion and a rotating shaft for rotation, the mounting portion being fixedly connected to the outside of the rotating shaft; A bearing sleeve is fitted over the outside of the rotating shaft, and a preset gap exists between the bearing sleeve and the rotating shaft. The bearing sleeve is fixedly connected to the mounting part. A sleeve is installed within the preset gap, the sleeve is sleeved outside the rotating shaft, and the bearing sleeve is sleeved outside the sleeve; A roller, the end of which is fixedly connected to the rotating shaft.
2. The aluminum foil slitting machine uncoiling cone fixing mechanism according to claim 1, characterized in that, It also includes an uncoiling seat, which is sleeved on the outer side of the end of the drum.
3. The aluminum foil slitting machine uncoiling cone fixing mechanism according to claim 1, characterized in that, The spacing of the preset gap is less than 0.4 mm.
4. The aluminum foil slitting machine uncoiling cone fixing mechanism according to claim 1, characterized in that, A guide rod is provided between the mounting part and the bearing sleeve, and the guide rod is used to fix the mounting part and the bearing sleeve together by means of an M5 set screw.
5. The aluminum foil slitting machine uncoiling cone fixing mechanism according to claim 4, characterized in that, A spring is fitted around the outside of the guide rod, and the spring is in a compressed state.
6. The aluminum foil slitting machine uncoiling cone fixing mechanism according to claim 1, characterized in that, The sleeve is made of copper, and the surface of the sleeve has several circular holes that penetrate the sleeve wall.