Arc-shaped roller for aluminum plating machine
By using an arc-shaped roller and a spiral channel to blow inert gas into the aluminizing machine, the problem of uneven film flattening was solved, enabling high-quality and efficient production of aluminized film products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
AI Technical Summary
In aluminizing machines, the film is prone to deformation and not flattening under high temperature and high pressure, resulting in blank lines, deviation, or film breakage, which affects product quality and production efficiency.
Design an arc-shaped roller made of rubber material, with internal spiral channels and air blowing holes. By blowing in constant-temperature inert gas, the arc-shaped structure and spiral channels of the roller body are used to flatten the film, ensuring uniform coating.
It effectively prevents plating voids, improves the quality and production efficiency of aluminized film products, reduces the impact of temperature differences on the film, and ensures that the film is evenly flattened.
Smart Images
Figure CN223974182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plating machine technology, and in particular to an arc-shaped roller for aluminum plating machines. Background Technology
[0002] Vacuum-deposited metallized film is a type of vacuum-deposited metallized film. It is a process that uses resistance, high-frequency, or electron beam heating under high vacuum conditions to evaporate and vaporize aluminum wire, forming aluminum vapor. This vapor then adheres to the surface of a film substrate to form a composite film. A very thin layer of metallic aluminum is deposited on the surface of plastic film or paper to create metallized film or paper. Metallized film products possess both the characteristics of plastic film and metal, making them an inexpensive, aesthetically pleasing, high-performance, and highly practical packaging material. During the metallization process, the film surface needs to be fully flattened to ensure a uniform thickness of the aluminum coating.
[0003] Vacuum metallizing machines typically have guide rollers in their vacuum chambers to guide the movement of the plastic film, guiding it through the unwinding, travel, and rewinding processes, allowing the film substrate to undergo metallization during its journey. However, during the metallization process, the high-speed operation of the metallizing machine, coupled with the alternating temperature changes within the vacuum chamber, causes significant film deformation. This can easily lead to problems such as film bursting and stretching, making it difficult to flatten. Unflattened film can result in uncoated lines, and in severe cases, misalignment and film breakage, significantly impacting the quality and production efficiency of the metallized film. Utility Model Content
[0004] To address the technical problem that existing technologies often result in blank lines on thin films due to uneven film spreading, and in severe cases, misalignment and film breakage, which greatly affect the quality and production efficiency of aluminum-coated film products, this utility model provides the following technical solution.
[0005] This utility model discloses an arc-shaped roller for an aluminum plating machine, comprising a roller body with a drive shaft and a driven shaft. The roller body has a hollow structure. The driven shaft has a through hole communicating with the inner cavity of the roller body. The driven shaft is connected to an air inlet pipe through a dynamic sealing bushing. The lower part of the roller body has a first arc-shaped portion and a second arc-shaped portion extending from the middle of the roller body to both ends. The outer periphery of the roller body has a first spiral channel and a second spiral channel with opposite spiral directions. The first spiral channel and the second spiral channel are respectively provided with a first air blowing hole and a second air blowing hole. Both the first air blowing hole and the second air blowing hole communicate with the inner cavity of the roller body.
[0006] As a further technical solution, the inner cavity of the roller body is provided with a vent pipe that communicates with the air inlet pipe, and the outer periphery of the vent pipe is provided with a plurality of air outlets that communicate with the first air blowing hole and the second air blowing hole.
[0007] As a further technical solution, the inner cavity of the roller body is provided with a vent pipe that communicates with the air inlet pipe, and the outer periphery of the vent pipe is provided with a plurality of air outlet pipes that are respectively connected to the first air blowing hole and the second air blowing hole.
[0008] As a further technical solution, the roller body is provided with a central air outlet, which is located on the opposite side of the first arc-shaped portion and the second arc-shaped portion.
[0009] As a further technical solution, the outer wall of the roller is made of rubber material.
[0010] As a further technical solution, the first air blowing hole and the second air blowing hole are respectively inclined towards both ends of the roller body.
[0011] The beneficial effects of this utility model are as follows: The lower part of the roller body is provided with a first arc-shaped portion and a second arc-shaped portion extending from the middle of the roller body to both ends, and the outer periphery of the roller body is provided with a first spiral channel and a second spiral channel with opposite spiral directions. When the roller body rotates, the film can be spread from the middle of the roller body to both sides, so that the unspread film can be quickly flattened to both ends of the roller body, preventing the formation of plating voids during the aluminum coating process, and improving the quality and production efficiency of the aluminum-coated film. The air inlet pipe can introduce a constant-temperature inert gas, which can reduce the temperature difference of the film during coating. The inert gas inside the roller body can blow the film from the center of the roller body to both sides, so that the film is evenly flattened to both ends of the roller body, eliminating unflattened parts on the film and ensuring the coating quality of the film. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the arc-shaped roller used in the aluminum plating machine according to this utility model;
[0013] Figure 2 This is another perspective schematic diagram of the arc-shaped roller used in the aluminum plating machine according to this utility model;
[0014] Figure 3 This is a cross-sectional schematic diagram of one embodiment of the arc-shaped roller used in an aluminum plating machine according to this utility model;
[0015] Figure 4 This is a cross-sectional schematic diagram of another embodiment of the arc-shaped roller of this utility model used in an aluminum plating machine;
[0016] In the figure: 1-roller body; 101-drive shaft; 102-driven shaft; 103-first arc-shaped part; 104-second arc-shaped part; 105-center air outlet; 2-dynamic seal bushing; 3-air inlet pipe; 4-first spiral channel; 401-first air blowing hole; 5-second spiral channel; 501-second air blowing hole; 6-vent pipe; 601-air outlet; 602-air outlet pipe. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0018] In the description of this utility model, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0019] like Figure 1 and Figure 2 As shown, this utility model discloses an arc-shaped roller for an aluminum plating machine, comprising a roller body 1 with a drive shaft 101 and a driven shaft 102. The outer wall of the roller body 1 is made of rubber material. The outer surface of the roller body 1 with a rubber outer wall has good elasticity and deformation capacity, allowing the roller body 1 to better adapt to changes in the shape of the film and ensure a flattening effect. The elasticity of the rubber can reduce wrinkles in the film during the flattening process and improve the flattening effect. The drive shaft 101 is connected to a drive motor, and the driven shaft 102 is rotatably connected to a fixed bracket inside the aluminum plating machine. Thus, the drive motor can drive the roller body 1 to rotate through the drive shaft 101, guiding and flattening the film during the plating process.
[0020] In a preferred embodiment, the lower part of the roller body 1 is provided with a first arc-shaped portion 103 and a second arc-shaped portion 104 extending from the middle of the roller body 1 to both ends. Figure 1 In the roller body 1, the first arc-shaped portion 103 and the second arc-shaped portion 104 are located at the lower part of the roller body 1, while the upper part of the roller body 1 has a normal guide roller shape. It is understood that the first arc-shaped portion 103 and the second arc-shaped portion 104 are on the same horizontal plane of the roller body 1. When the roller body 1 rotates, the film can be spread from the middle of the roller body 1 along the first arc-shaped portion 103 and the second arc-shaped portion 104 to both sides of the roller body 1, allowing any unspread film to be quickly flattened towards both ends of the roller body 1. This prevents the formation of blank lines during the metallization process, improving the quality and production efficiency of the metallized film products.
[0021] In a preferred embodiment, the outer periphery of the roller body 1 is provided with a first spiral channel 4 and a second spiral channel 5 with opposite spiral directions. The first spiral channel 4 and the second spiral channel 5 are arranged opposite each other in the axial direction of the roller body 1, and have the same length and spiral degree. That is, the first spiral channel 4 is located on the left side of the roller body 1 and on the first arc-shaped portion 103, and the second spiral channel 5 is located on the right side of the roller body 1 and on the second arc-shaped portion 104. When the roller body 1 rotates, the film is guided by the roller body 1. The threads of the first spiral channel 4 and the second spiral channel 5 can guide the film. The left side of the film flattens to the left along the first spiral channel 4, and the right side of the film flattens to the right along the second spiral channel 5, which can quickly flatten the unflattened film to both ends of the roller body 1.
[0022] like Figure 1 and Figure 3 As shown, in a preferred embodiment, the roller body 1 has a hollow structure, with its inner wall made of metal and its outer wall made of rubber. The driven shaft 102 has a through hole communicating with the inner cavity of the roller body 1. The driven shaft 102 is connected to an air inlet pipe 3 via a dynamic sealing sleeve 2. A constant-temperature inert gas can be introduced through the air inlet pipe 3, which enters the inner cavity of the roller body 1 through the driven shaft 102. At this time, the first spiral channel 4 and the second spiral channel 5 are respectively provided with a first air blowing hole 401 and a second air blowing hole 501, both of which communicate with the inner cavity of the roller body 1. The first air blowing hole 401 and the second air blowing hole 501 are distributed along the spiral lines of the first spiral channel 4 and the second spiral channel 5, respectively, to uniformly blow the constant-temperature inert gas onto the film, and to flatten the film outwards using the threads. The outlets of the first air blowing hole 401 and the second air blowing hole 501 can extend radially along the roller body 1. Of course, the first air blowing hole 401 and the second air blowing hole 501 can also be inclined toward the two ends of the roller body 1 respectively. The inclined arrangement of the outlets of the first air blowing hole 401 and the second air blowing hole 501 toward the two ends of the roller body 1 can further improve the outward blowing efficiency and ensure the flattening speed and flattening efficiency of the film.
[0023] In a preferred embodiment, the inner cavity of the roller body 1 is provided with a vent pipe 6 that communicates with the air inlet pipe 3. The vent pipe 6 is arranged along the axial direction of the roller body 1 and is fixed at both ends of the inner cavity of the roller body 1. The outer periphery of the vent pipe 6 is provided with a plurality of air outlet holes 601. The air outlet holes 601 communicate with the first air blowing hole 401 and the second air blowing hole 501. The inert gas entering through the air inlet pipe 3 passes through the vent pipe 6 and is blown from the air outlet holes 601 to the first air blowing hole 401 and the second air blowing hole 501. The inert gas blown out by the first air blowing hole 401 and the second air blowing hole 501 can flatten the film from the center of the roller body 1 to both sides, so that the film is evenly flattened at both ends of the roller body 1, which can eliminate the unflattened parts on the film and ensure the coating quality of the film.
[0024] In a preferred embodiment, a center-separated air outlet 105 is provided in the middle of the roller body 1. The center-separated air outlet 105 is located in the very center of the roller body 1 and is located on the opposite side of the first arc-shaped portion 103 and the second arc-shaped portion 104. That is, when the first arc-shaped portion 103 and the second arc-shaped portion 104 are located at the lower part of the roller body 1, the center-separated air outlet 105 is located at the upper part of the roller body 1. The center-separated air outlet 105 can blow towards the middle of the film, which can blow open the unflattened part of the film in the middle and further ensure the flatness of the film.
[0025] like Figure 4 As shown, in a preferred embodiment, the inner cavity of the roller body 1 is provided with a vent pipe 6 communicating with the air inlet pipe 3. The vent pipe 6 is arranged along the axial direction of the roller body 1 and is fixed at both ends of the inner cavity of the roller body 1. The outer periphery of the vent pipe 6 is provided with a plurality of air outlet pipes 602 that are respectively connected to the first air blowing hole 401 and the second air blowing hole 501. That is, each first air blowing hole 401 or each second air blowing hole 501 corresponds to one air outlet pipe 602. In this way, the inert gas can flow evenly to each first air blowing hole 401 and each second air blowing hole 501. The evenly blown inert gas can further improve the flattening quality of the film, thereby preventing the occurrence of blank lines during the coating process of the aluminizing machine, and improving the quality and production efficiency of the aluminized film product.
[0026] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. Within the scope of knowledge possessed by those skilled in the art, various changes or equivalent substitutions can be made without departing from the concept of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. An arc-shaped roller for an aluminizing machine, comprising a roller body (1) provided with a driving shaft (101) and a driven shaft (102), characterized in that: The roller body (1) is a hollow structure, the driven shaft (102) is provided with a through hole communicated with the inner cavity of the roller body (1), the driven shaft (102) is connected with the air inlet pipe (3) through the dynamic sealing shaft sleeve (2), the lower part of the roller body (1) is provided with the first arc-shaped part (103) and the second arc-shaped part (104) extending from the middle of the roller body (1) to both ends, the outer periphery of the roller body (1) is provided with the first spiral channel (4) and the second spiral channel (5) with opposite spiral directions, the first spiral channel (4) and the second spiral channel (5) are respectively provided with the first air blowing hole (401) and the second air blowing hole (501), and the first air blowing hole (401) and the second air blowing hole (501) are communicated to the inner cavity of the roller body (1).
2. The arc-shaped roller for an aluminizing machine according to claim 1, characterized in that: The fixed inner cavity of the roller body (1) is provided with the air pipe (6) communicated with the air inlet pipe (3), and the outer periphery of the air pipe (6) is provided with a plurality of air outlet holes (601) communicated with the first air blowing hole (401) and the second air blowing hole (501).
3. The arc-shaped roller for an aluminizing machine according to claim 1, characterized in that: The fixed inner cavity of the roller body (1) is provided with the air pipe (6) communicated with the air inlet pipe (3), and the outer periphery of the air pipe (6) is provided with a plurality of air outlet holes (601) communicated with the first air blowing hole (401) and the second air blowing hole (501).
4. The arc-shaped roller for an aluminizing machine according to claim 1, characterized in that: The middle of the roller body (1) is provided with the middle air outlet hole (105), and the middle air outlet hole (105) is located on the side opposite to the first arc-shaped part (103) and the second arc-shaped part (104).
5. The arc-shaped roller for an aluminizing machine according to claim 1, characterized in that: The outer wall of the roller body (1) is made of rubber material.
6. The arc-shaped roller for an aluminizing machine according to claim 1, characterized in that: The first air blowing hole (401) and the second air blowing hole (501) are respectively inclined to both ends of the roller body (1).