Vacuum transmission aluminum roller structure

Abstract

The utility model relates to the technical field of vacuum coating, and discloses a vacuum transmission aluminum roller structure which comprises a hollow aluminum roller, a first stainless steel roller end and a second stainless steel roller end. Holes for stainless steel set screws to penetrate through are formed in the upper ends and the lower ends of the left side and the right side of the hollow aluminum roller. Compared with a traditional device, the device is simple in structure, light in weight and convenient for workers to assemble and disassemble, the cleaning burden of the workers is relieved, meanwhile, the material adopted by the device is small in deflation amount, and due to the fact that the thermal expansion coefficients of aluminum and stainless steel are different, the hollow aluminum roller is not prone to falling off in the transportation process, and the service life of the hollow aluminum roller is prolonged. The left end and the right end of the hollow aluminum roller are pressed and fixed to the first stainless steel roller end and the second stainless steel roller end, and stable transportation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum coating, and more specifically, to a vacuum transmission aluminum roller structure. Background Art

[0002] In the field of modern high-tech manufacturing, especially in thin film deposition and coating technologies, vacuum continuous line coating equipment and processes play a crucial role. These equipment are widely used in multiple industries such as electronics, optics, semiconductors, and solar energy to achieve high-precision and high-quality functional thin film coating. On such a production line, the transmission roller, as a core driving component, its performance and stability directly affect the efficiency and product quality of the entire coating process. Therefore, the design of the transmission roller is particularly important.

[0003] Currently, in vacuum continuous line coating and equipment, the movement of the substrate needs to be driven by the transmission roller. In order to ensure that the transmission roller can operate stably for a long time in a high-temperature environment, ceramic rollers are usually used as the transportation medium. However, the cost of using ceramic rollers is relatively high, and in the process of vacuum continuous line coating, outgassing is a necessary process. Due to its own material reasons, the ceramic roller has a large outgassing volume in a vacuum, and during coating, the ceramic roller is easily contaminated, and it is difficult and costly to clean the contaminated ceramic roller. Therefore, it needs to be improved and optimized. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a vacuum transmission aluminum roller structure, which has the advantages of low cost and being convenient for disassembly and assembly.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a vacuum transmission aluminum roller structure, including a hollow aluminum roller, a stainless steel roller end one, and a stainless steel roller end two. The left side of the hollow aluminum roller is assembled with the stainless steel roller end one through interference fit. Through holes for stainless steel set screws to pass through are opened at the upper and lower ends on both the left and right sides of the hollow aluminum roller. The upper and lower ends of the left side of the hollow aluminum roller and the stainless steel roller end one are fixedly connected by stainless steel set screws. The right side of the hollow aluminum roller is assembled with the stainless steel roller end two through interference fit. The upper and lower ends of the right side of the hollow aluminum roller and the stainless steel roller end two are also fixedly connected by stainless steel set screws;

[0006] An air extraction hole is opened inside the stainless steel roller end one, and the air extraction hole is in communication with the inside of the hollow aluminum roller. A driving shaft is fixedly installed on the right side of the stainless steel roller end two.

[0007] As a preferred technical solution of the utility model, air vent holes are opened on the outer wall of the hollow aluminum roller, and the air vent holes are responsible for the outgassing operation.

[0008] As a preferred technical solution of the present utility model, the left and right ends of the hollow aluminum roller are convex end structures, and the right side of the first end of the stainless steel roller and the left side of the second end of the stainless steel roller are concave end structures.

[0009] As a preferred technical solution of the present utility model, a cold disk assembly is adopted between the hollow aluminum roller and the first end of the stainless steel roller and the second end of the stainless steel roller.

[0010] As a preferred technical solution of the present utility model, the thermal expansion coefficient of the hollow aluminum roller is greater than the thermal expansion coefficients of the first end of the stainless steel roller and the second end of the stainless steel roller.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the first end of the stainless steel roller and the second end of the stainless steel roller are respectively installed on the convex end structures at the left and right ends of the hollow aluminum roller through interference fit, and then the hollow aluminum roller and the stainless steel roller ends are assisted in fixing through stainless steel set screws to complete the assembly of the transfer aluminum roller. Compared with the traditional device, this device has a simple structure, is lighter in weight, is convenient for the staff to install and disassemble, and reduces the burden on the staff for cleaning.

[0013] 2. In the present utility model, through the cooperation of the materials of aluminum and stainless steel, when the device is in a vacuum high-temperature state, the hollow aluminum roller expands greatly due to heat, so that the hollow aluminum roller and the stainless steel roller ends are pressed against each other to complete the fixation. Compared with the traditional device, the materials used in this device have less outgassing, and due to the different thermal expansion coefficients between aluminum and stainless steel, when the hollow aluminum roller is in transportation operation, the left and right ends of the hollow aluminum roller are pressed and fixed with the first end of the stainless steel roller and the second end of the stainless steel roller, ensuring the stability of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structural diagram of the hollow aluminum roller of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the air extraction hole of the present utility model;

[0017] Figure 4 is a schematic structural diagram of the drive shaft of the present utility model;

[0018] Figure 5 is a schematic structural diagram of the ventilation hole of the present utility model;.

[0019] In the figure: 1. Hollow aluminum roller; 2. First stainless steel roller end; 3. Second stainless steel roller end; 4. Stainless steel set screw; 5. Air extraction hole; 6. Drive shaft; 7. Vent hole. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] As Figures 1 to 5 shown, the present invention provides a vacuum transmission aluminum roller structure, including a hollow aluminum roller 1, a first stainless steel roller end 2 and a second stainless steel roller end 3. The left side of the hollow aluminum roller 1 is assembled with the first stainless steel roller end 2 by interference fit. Holes for the stainless steel set screws 4 to pass through are provided at the upper and lower ends on both the left and right sides of the hollow aluminum roller 1. The upper and lower ends of the left side of the hollow aluminum roller 1 and the first stainless steel roller end 2 are fixedly connected by the stainless steel set screws 4. The right side of the hollow aluminum roller 1 is assembled with the second stainless steel roller end 3 by interference fit. The upper and lower ends of the right side of the hollow aluminum roller 1 and the second stainless steel roller end 3 are also fixedly connected by the stainless steel set screws 4;

[0022] An air extraction hole 5 is provided inside the first stainless steel roller end 2, and the air extraction hole 5 communicates with the inside of the hollow aluminum roller 1. A drive shaft 6 is fixedly installed on the right side of the second stainless steel roller end 3.

[0023] When it is necessary to install a transmission roller, the staff first assembles the vacuum aluminum roller. The staff first uses cold plate assembly and installs the stainless steel roller end one 2 and the stainless steel roller end two 3 of the stainless steel roller at the convex end structures on the left and right ends of the hollow aluminum roller 1 respectively through interference fit. After the installation is completed, the staff uses stainless steel set screws 4 to fix the hollow aluminum roller 1 between the stainless steel roller end one 2 and the stainless steel roller end two 3. After the fixation is completed, the staff installs the device on the vacuum continuous production line. At this time, the staff can perform evacuation operations through the evacuation holes 5 to achieve a vacuum environment. And the drive shaft 6 rotates the hollow aluminum roller 1 through an external drive mechanism on the production line to complete the transportation operation. In a vacuum environment, the temperature of the production line rises. Since the thermal expansion coefficient of the hollow aluminum roller 1 is 23 - 23.6×10^-6 / ℃, while the thermal expansion coefficients of the stainless steel roller end one 2 and the stainless steel roller end two 3 are 16 - 17.3×10^-6 / ℃, at this time, the hollow aluminum roller 1 expands more due to heat, causing mutual extrusion and fixation between the hollow aluminum roller 1 and the stainless steel roller end one 2 and the stainless steel roller end two 3, ensuring the stability of the hollow aluminum roller 1. After the transportation operation is completed, the staff can disassemble the stainless steel set screws 4 and remove the stainless steel roller end one 2 and the stainless steel roller end two 3 from both ends of the hollow aluminum roller 1 for easy cleaning.

[0024] It should be noted that interference fit is a commonly used connection technology in mechanical assembly. It utilizes the elastic characteristics of materials to expand and deform the stainless steel roller end one 2 and the stainless steel roller end two 3 during the assembly process to fit over the convex ends on the left and right ends of the hollow aluminum roller 1. When the stainless steel roller end one 2 and the stainless steel roller end two 3 return to their original shapes, they will generate a clamping force on the hollow aluminum roller 1, thus achieving a tight connection between the two parts. And cold plate assembly refers to the assembly carried out at normal temperature or a relatively low temperature, without involving heating or heat treatment processes.

[0025] The stainless steel roller end one 2 and the stainless steel roller end two 3 of the stainless steel roller are respectively installed on the convex end structures on the left and right ends of the hollow aluminum roller 1 through interference fit, and then the stainless steel set screws 4 are used to assist in fixing between the hollow aluminum roller 1 and the stainless steel roller end one 2 to complete the assembly of the transmission aluminum roller. Compared with traditional devices, this device has a simple structure, is lighter in weight, is convenient for the staff to install and disassemble, and reduces the burden on the staff for cleaning.

[0026] Through the cooperation of the materials between aluminum and stainless steel, when the device is in a vacuum and high-temperature state, the hollow aluminum roller 1 expands greatly due to heat, causing the hollow aluminum roller 1 and the ends of the stainless steel rollers to be pressed against each other to complete fixation. Compared with traditional devices, the materials used in this device have less outgassing, and due to the thermal expansion coefficients between aluminum and stainless steel, when the hollow aluminum roller 1 is in transportation operation, the left and right ends of the hollow aluminum roller 1 are pressed and fixed with the ends of the stainless steel roller one 2 and the ends of the stainless steel roller two 3, ensuring the stability of transportation.

[0027] Among them, ventilation holes 7 are provided on the outer wall of the hollow aluminum roller 1, and the ventilation holes 7 are responsible for outgassing operations.

[0028] Among them, the left and right ends of the hollow aluminum roller 1 are of convex end structures, and the right side of the stainless steel roller end one 2 and the left side of the stainless steel roller end two 3 are of concave end structures.

[0029] The stainless steel roller end one 2 and the stainless steel roller end two 3 are respectively installed on the convex end structures at the left and right ends of the hollow aluminum roller 1 through interference fit, making its installation fast and disassembly convenient.

[0030] Among them, cold disk assembly is adopted between the hollow aluminum roller 1 and the stainless steel roller end one 2 and the stainless steel roller end two 3.

[0031] Among them, the thermal expansion coefficient of the hollow aluminum roller 1 is greater than that of the stainless steel roller end one 2 and the stainless steel roller end two 3.

[0032] The thermal expansion coefficient of the hollow aluminum roller 1 is in the range of 23 - 23.6×10^-6 / ℃, while the thermal expansion coefficients of the stainless steel roller end one 2 and the stainless steel roller end two 3 are in the range of 16 - 17.3×10^-6 / ℃. At this time, the hollow aluminum roller 1 expands more due to heat, causing the hollow aluminum roller 1 to be squeezed and fixed with the stainless steel roller end one 2 and the stainless steel roller end two 3.

[0033] The working principle and usage process of the present utility model:

[0034] When it is necessary to install a transmission roller, the staff first assembles the vacuum aluminum roller. The staff first uses cold disk assembly and installs the stainless steel roller end one 2 and the stainless steel roller end two 3 at the convex end structures on the left and right ends of the hollow aluminum roller 1 respectively through interference fit. After the installation is completed, the staff fixes the hollow aluminum roller 1 with the stainless steel roller end one 2 and the stainless steel roller end two 3 through stainless steel set screws 4. After the fixation is completed, the staff installs the device on the vacuum continuous production line. At this time, the staff can perform air extraction operations through the air extraction hole 5 to achieve a vacuum environment. And the drive shaft 6 rotates the hollow aluminum roller 1 through the external drive mechanism on the production line to complete the transportation operation. In the vacuum environment, the temperature of the production line rises. Since the thermal expansion coefficient of the hollow aluminum roller 1 is 23 - 23.6×10^-6 / ℃, while the thermal expansion coefficients of the stainless steel roller end one 2 and the stainless steel roller end two 3 are 16 - 17.3×10^-6 / ℃, at this time, the hollow aluminum roller 1 expands more due to heat, causing mutual extrusion and fixation between the hollow aluminum roller 1 and the stainless steel roller end one 2 and the stainless steel roller end two 3, ensuring the stability of the hollow aluminum roller 1. After the transportation operation is completed, the staff can disassemble the stainless steel set screws 4 and remove the stainless steel roller end one 2 and the stainless steel roller end two 3 from both ends of the hollow aluminum roller 1 for easy cleaning.

[0035] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0036] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum transmission aluminum roller structure, characterized in that: It comprises a hollow aluminum roller (1), a stainless steel roller end 1 (2) and a stainless steel roller end 2 (3), wherein the left side of the hollow aluminum roller (1) is fitted with the stainless steel roller end 1 (2) by interference fit, and holes are provided at both upper and lower ends of the left and right sides of the hollow aluminum roller (1) for the stainless steel set screws (4) to pass through, and the left side of the hollow aluminum roller (1) and the upper and lower ends of the stainless steel roller end 1 (2) are fixedly connected by the stainless steel set screws (4), and the right side of the hollow aluminum roller (1) is fitted with the stainless steel roller end 2 (3) by interference fit, and the right side of the hollow aluminum roller (1) and the upper and lower ends of the stainless steel roller end 2 (3) are also fixedly connected by the stainless steel set screws (4); An exhaust hole (5) is provided inside the first end (2) of the stainless steel roller, and the exhaust hole (5) and the inside of the hollow aluminum roller (1) are connected to each other. A driving shaft (6) is fixedly installed on the right side of the second end (3) of the stainless steel roller.

2. The vacuum transmission aluminum roller structure according to claim 1, characterized in that: The outer wall of the hollow aluminum roller (1) is provided with a vent hole (7), and the vent hole (7) is responsible for the air release operation.

3. The vacuum transmission aluminum roller structure according to claim 1, characterized in that: The left and right ends of the hollow aluminum roller (1) are convex end structures, and the right side of the stainless steel roller end one (2) and the left side of the stainless steel roller end two (3) are concave end structures.

4. The vacuum transmission aluminum roller structure according to claim 1, characterized in that: The hollow aluminum roller (1) and the stainless steel roller end 1 (2) and the stainless steel roller end 2 (3) are assembled by cold plates.

5. The vacuum transmission aluminum roller structure according to claim 1, characterized in that: The thermal expansion coefficient of the hollow aluminum roller (1) is greater than the thermal expansion coefficients of the stainless steel roller end 1 (2) and the stainless steel roller end 2 (3).

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