Dustproof cleanroom for aluminum foil casting and rolling coils

By using magnetic strips and flexible curtains in the dustproof cleanroom for aluminum foil casting and rolling, combined with a centrifugal fan filtration system, the problems of dust and insect contamination in aluminum foil production have been solved, achieving efficient clean protection and equipment stability.

CN224314671UActive Publication Date: 2026-06-02ZUNYI HENG JIA ALUMINUM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZUNYI HENG JIA ALUMINUM CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In the aluminum foil production process, dust and insect pollution seriously affect product quality and equipment operation. Existing simple barriers cannot effectively isolate dust and prevent insects, resulting in low product qualification rate and equipment wear.

Method used

A dustproof cleanroom for aluminum foil cast-rolled coils was designed, which adopts a combination of magnetic strips and magnetic convex strips for fixing, combined with flexible curtains and centrifugal fan filtration system to form a three-sided protective structure to ensure a clean environment.

Benefits of technology

It significantly improves the dustproof effect of aluminum foil, enhances the stability and ease of operation of the curtain, reduces maintenance costs, extends the service life of the equipment, and maintains a highly efficient clean and protective environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This solution discloses a dustproof cleanroom for aluminum foil casting and rolling coils, including a support frame. The support frame comprises a support frame and four columns, which are fixedly connected to the four corners of the support frame. A top plate is provided on the top of the support frame, and curtain assemblies are provided on both sides of the support frame. Two opposite outer sides of the support frame have mounting grooves containing magnetic strips. The ends of the curtain assemblies have magnetic protrusions that cooperate with the magnetic strips. This solution achieves significant improvements in the dustproof effect of the aluminum foil, enhances the stability of the curtain assemblies to prevent detachment, facilitates quick disassembly and replacement of the curtains to reduce maintenance costs and time, reduces mechanical wear and collision risks from opening and closing rigid isolation doors, extends equipment lifespan, and provides a highly efficient and stable clean protective environment through a dual fixation of the curtain assemblies by magnetic attraction and groove positioning.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum foil production technology, and in particular to a dustproof and cleanroom shed for aluminum foil casting and rolling coils. Background Technology

[0002] In the aluminum foil production process, after the aluminum foil is cast and rolled, it needs to be conveyed to a winding machine for winding and unwinding. However, the production workshop environment contains a large amount of dust particles, and insects may also enter. Dust adhering to the surface of the aluminum foil will affect its surface quality, reduce the product qualification rate, and may even cause equipment wear and precision reduction in subsequent processing due to dust particles entering precision components. If insects enter the conveying area, the pollutants they carry will contaminate the aluminum foil surface, and the insect corpses remaining on the aluminum foil or conveying equipment will also interfere with the production process, affecting product quality and normal production. Currently, some manufacturers only use ordinary canvas or plastic film to simply enclose the aluminum foil conveying area. This method cannot effectively isolate dust and prevent insects. Therefore, there is an urgent need for equipment that can provide a good clean environment to ensure the cleanliness of the aluminum foil conveying process. Utility Model Content

[0003] The present invention aims to provide a dustproof and cleanroom for aluminum foil casting and rolling coils to solve the problem of poor dustproof effect during the aluminum foil production process.

[0004] The aluminum foil casting and rolling coil dustproof cleanroom in this solution includes a support frame, which includes a support frame and four columns. The columns are fixedly connected to the four corners of the support frame. The top of the support frame is provided with a top plate. Both sides of the support frame are provided with curtain assemblies. The two opposite outer sides of the support frame are provided with mounting grooves. Magnetic strips are provided in the mounting grooves. The ends of the curtain assemblies are provided with magnetic protrusions that cooperate with the magnetic strips.

[0005] The working principle and beneficial effects of this solution are as follows: During use, the magnetic ferrule at the end of the curtain assembly is embedded into the mounting groove on the outside of the support frame. It is fixed in place by the magnetic attraction of the ferrule. Under the weight of the curtain assembly, the side of the ferrule with the curtain assembly tilts slightly downwards, while the side engaging with the magnetic strip tilts slightly upwards. Under the influence of magnetism, the ferrule is less likely to slip out. The support frame is then moved as a whole to the discharge port of the aluminum foil casting and rolling mill, forming a three-sided protective structure between the curtain assembly and the top plate. When inspecting the aluminum foil discharge, the operator can simply push the curtain assembly laterally to allow it to enter. The curtain assembly closes automatically after the external force is removed. To remove the curtain assembly, apply force laterally away from the support frame to move the magnetic ferrule out of the mounting groove. This solution not only significantly improves the dustproof effect of aluminum foil, but also effectively enhances the stability of the curtain assembly through a dual fixing mechanism of magnetic attraction and tank limiting, preventing the curtain from falling off due to external forces. The magnetic structure facilitates quick disassembly and replacement of the curtain, greatly reducing maintenance costs and time. At the same time, the opening and closing method of the flexible curtain reduces the mechanical wear and collision risks caused by the frequent opening and closing of the rigid isolation door. While ensuring ease of operation, it further extends the service life of the equipment and provides an efficient and stable clean protection environment for aluminum foil production.

[0006] Furthermore, the curtain assembly includes multiple curtains and multiple magnetic gussets, with each curtain's end fixedly connected to a magnetic gusset. The curtain assembly employs a multi-curtain independent design, meaning the removal and installation of a single curtain does not affect the overall structure. This allows operators to partially open the curtains as needed for inspection and to replace damaged curtains selectively. Compared to traditional integrated curtains, this design significantly improves the flexibility and maintenance efficiency of the protection system.

[0007] Furthermore, the end of the magnetic gusset is provided with a barb, and the top of the mounting groove is provided with a top groove for placing the barb. When the magnetic gusset tilts under the weight of the curtain assembly, the barb gets stuck in the top groove, which can further fix the curtain.

[0008] Furthermore, the magnetic strip is tilted downwards and to the right on the side closest to the magnetic protrusion. This arrangement allows the magnetic strip to better match the tilted magnetic protrusion.

[0009] Furthermore, magnetic clasps are provided on the sides of the two adjacent curtains that are close to each other. The magnetic clasps between the two adjacent curtains are tightly attached by magnetic force to form a seamless protective interface, which not only effectively blocks the intrusion path of dust and impurities, but also automatically resets and closes after personnel pass through, continuously maintaining the high airtightness and dustproof effect of the clean booth.

[0010] Furthermore, the curtain near the column is equipped with multiple magnetic buttons arranged side by side. The column has a vertical notch containing evenly distributed magnetic snap fasteners. The magnetic buttons and snap fasteners work together. The magnetic buttons and snap fasteners are precisely attracted by magnetic force, enabling quick installation and removal of the curtain from the column. Due to the vertical orientation of the notch, the installation position of the snap fasteners within the notch can be flexibly adjusted according to different operating conditions and protection requirements of the aluminum foil casting and rolling mill. Simultaneously, the magnetic density can be adjusted by increasing or decreasing the number of snap fasteners, ensuring a stable and secure fit of the curtain while optimizing the sealing effect and ease of operation of the cleanroom.

[0011] Furthermore, the support frame is provided with a fixing groove, in which a centrifugal fan and a filter are installed. The centrifugal fan draws in outside air, which is then filtered and delivered into the cleanroom at a uniform wind speed. This creates a top-to-bottom airflow layer inside the cleanroom, maintaining a positive pressure and preventing unfiltered outside air from entering. At the same time, it carries away any dust particles that may be generated, maintaining a clean environment inside the cleanroom.

[0012] Preferably, the filter has a filtration efficiency of not less than H13 level, which can effectively filter dust particles larger than 0.3 micrometers.

[0013] Furthermore, both ends of the support frame are equipped with elastic shielding curtains, each with an opening in the middle. During use, the aluminum foil casting and rolling mill's discharge port enters through this opening, allowing the elastic shielding curtains to contact the outer wall of the mill for better sealing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the dustproof and cleanroom shed for aluminum foil casting and rolling coils according to this utility model;

[0015] Figure 2 for Figure 1 A structural diagram with the top plate removed;

[0016] Figure 3 This is a schematic diagram of the installation structure of the curtain and the mounting groove in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the curtain and mounting groove in this utility model.

[0018] Figure 5 A schematic diagram of the magnetic button structure on the curtain near the pillar;

[0019] Figure 6 This is a schematic diagram of the structure of Example 2. Detailed Implementation

[0020] The following detailed explanation illustrates the specific implementation methods:

[0021] The reference numerals in the accompanying drawings include: support frame 1, top plate 2, column 3, mounting groove 4, top groove 41, magnetic strip 5, notch 6, magnetic snap fastener 7, fixing groove 8, filter 91, centrifugal fan 92, magnetic protrusion 10, barb 11, curtain 12, magnetic sheet 13, magnetic button 14, elastic blind curtain 15.

[0022] The basic implementation examples are as follows: Figures 1-5 As shown: A dustproof cleanroom for aluminum foil casting and rolling coils includes a support frame 1, which includes a support frame and four columns 3. The columns 3 are fixedly connected to the four corners of the support frame. The top of the support frame is provided with a top plate 2. Both sides of the support frame are provided with curtains 12 groups. Each curtain 12 group includes multiple curtains 12. The side of two adjacent curtains 12 that are close to each other is provided with a magnetic suction piece 13. The ends of the curtains 12 are fixedly connected with magnetic suction strips 10. The ends of the magnetic suction strips 10 are provided with barbs 11. The top of the mounting groove 4 is provided with a top groove 41 for placing the barbs 11. The two opposite outer sides of the support frame are provided with mounting grooves 4. Magnetic suction strips 5 are provided in the mounting grooves 4. The side of the magnetic suction strips 5 that is close to the magnetic suction strips 10 is inclined to the lower right. The curtains 12 that are close to the column 3 are provided with multiple magnetic buttons 14 in parallel. The column 3 is provided with a vertical notch 6. Magnetic snap fasteners 7 are evenly distributed in the notch 6. The magnetic buttons 14 and magnetic snap fasteners 7 are used together.

[0023] The support frame is provided with a fixing groove 8, and a centrifugal fan 92 and a filter 91 are provided in the fixing groove 8. The filtration efficiency of the filter 91 is not lower than H13 level, which can effectively filter dust particles larger than 0.3 microns.

[0024] If the support frame is too long, support columns can be installed in the middle to strengthen the support.

[0025] In use, the magnetic convex strips 10 at the ends of the multiple curtains 12 are embedded into the mounting grooves 4 on the outside of the support frame and fixed by the magnetic attraction of the magnetic strips 5. Under the gravity of the curtain 12 group, the side of the magnetic convex strip 10 with the curtain 12 group is slightly tilted downward, while the side of the magnetic convex strip 10 that cooperates with the magnetic strip 5 is slightly tilted upward. The tilted design of the magnetic strip 5 can better match the tilted magnetic convex strip 10. At this time, the barb 11 is stuck in the top groove 41, which can further fix the curtain 12. Under the action of magnetic force, the magnetic convex strip 10 is less likely to slip out. Then, the support frame 1 is moved as a whole to the discharge port of the aluminum foil casting and rolling mill, so that the curtain 12 group and the top plate 2 form a three-sided protective structure. When operators inspect the aluminum foil output, they separate the magnetic button 14 and the magnetic snap fastener 7, and push the curtain 12 near the column 3 laterally to enter. The magnetic button 14 and the magnetic snap fastener 7 are precisely attracted by magnetic force, enabling quick installation and removal of the curtain 12 and the column 3. Due to the vertical setting of the notch 6, the installation position of the magnetic snap fastener 7 in the notch 6 can be flexibly adjusted according to different working conditions and protection requirements of the aluminum foil casting and rolling machine. At the same time, the magnetic density can be adjusted by increasing or decreasing the number of magnetic snap fasteners 7, which can ensure that the curtain 12 is firmly attached and optimize the sealing effect and operation convenience of the clean booth. The magnetic plates 13 between two adjacent curtains 12 are tightly attached by magnetic force to form a seamless protective interface, which not only effectively blocks the intrusion path of dust and impurities, but also automatically resets and closes after personnel pass through, continuously maintaining the high airtightness and dustproof effect of the clean booth. When removing the curtain 12 set, apply force laterally to the side away from the support frame 1 to move the magnetic protrusion 10 out of the mounting groove 4. This solution not only significantly improves the dustproof effect of aluminum foil, but also effectively enhances the stability of the curtain 12 through a dual fixing mechanism of magnetic attraction and tank limiting, preventing the curtain 12 from falling off due to external force. The magnetic structure facilitates quick disassembly and replacement of the curtain 12, greatly reducing maintenance costs and time. At the same time, the opening and closing method of the flexible curtain 12 reduces the mechanical wear and collision risk caused by frequent opening and closing of the rigid isolation door. While ensuring ease of operation, it further extends the service life of the equipment, providing an efficient and stable clean protection environment for aluminum foil production. In addition, the centrifugal fan 92 draws in outside air, filters it through the filter 91, and then delivers clean air into the cleanroom at a uniform wind speed, forming a top-down airflow layer inside the cleanroom. This maintains a positive pressure state inside the cleanroom, preventing unfiltered outside air from entering, while carrying away any dust particles that may be generated, thus maintaining a clean environment inside the cleanroom.

[0026] Example 2

[0027] like Figure 6 The difference between the shown embodiment and Embodiment 1 is that: both ends of the support frame are provided with elastic shielding curtains 15, and the elastic shielding curtains 15 have an opening in the middle. In use, the aluminum foil casting and rolling mill discharge port is inserted through the opening, and the elastic shielding curtains 15 contact the outer wall of the casting and rolling mill, which can better seal the material.

[0028] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A dustproof and cleanroom enclosure for aluminum foil casting and rolling coils, characterized in that: The device includes a support frame, which consists of a support frame and four columns. The columns are fixedly connected to the four corners of the support frame. The top of the support frame is provided with a top plate. Both sides of the support frame are provided with curtain assemblies. The two opposite outer sides of the support frame are provided with mounting grooves. Magnetic strips are provided in the mounting grooves. The ends of the curtain assemblies are provided with magnetic protrusions that cooperate with the magnetic strips.

2. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 1, characterized in that: The curtain assembly includes multiple curtains and multiple magnetic gussets, with the ends of the multiple curtains respectively fixedly connected to the magnetic gussets.

3. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 2, characterized in that: The end of the magnetic convex strip is provided with a barb, and the top of the mounting groove is provided with a top groove for placing the barb.

4. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 3, characterized in that: The magnetic strip is tilted to the lower right on the side closest to the magnetic protrusion.

5. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 4, characterized in that: Magnetic tabs are provided on the side of the two adjacent curtains that are close to each other.

6. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 5, characterized in that: The curtain near the column is provided with a number of magnetic buttons in a row. The column is provided with a vertical notch, in which magnetic snap fasteners are evenly distributed. The magnetic buttons and magnetic snap fasteners are used together.

7. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 6, characterized in that: The support frame is provided with a fixing groove, and a centrifugal fan and a filter are installed in the fixing groove.

8. The dustproof cleanroom for aluminum foil casting and rolling coils according to claim 7, characterized in that: Both ends of the support frame are equipped with elastic blinds, and the elastic blinds have an opening in the middle.