Rotating shaft assembly for vacuum coating equipment

Abstract

The utility model relates to the technical field of vacuum coating equipment, in particular to a rotating shaft assembly used on vacuum coating equipment, which comprises a rotating shaft and a bearing arranged on the rotating shaft, the rotating shaft is sleeved with a magnetic suction assembly, and the bearing is higher than the magnetic suction assembly. The magnetic attraction assembly comprises two magnetic attraction pieces which are magnetically attracted, the two magnetic attraction pieces are symmetrically and magnetically attracted to the rotating shaft, and the magnetic line direction of the magnetic attraction pieces is arranged in the axial direction of the rotating shaft. Scrap iron newly generated in the working process of the coating equipment is adsorbed in time through the magnetic attraction assembly, the purity of the vacuum cavity in the vacuum coating equipment is guaranteed, and the scrap iron is prevented from affecting the attachment effect between a film and a coated product in the vacuum coating process.

Description

Technical Field

[0001] This application relates to the technical field of vacuum coating equipment, and in particular to a rotating shaft assembly for use in vacuum coating equipment. Background Technology

[0002] The working principle of vacuum coating equipment is to heat metal or non-metal materials to above their boiling point in a vacuum chamber, causing them to evaporate and condense on the surface of the object, forming a thin film that protects the surface of the object from external damage.

[0003] The vacuum chamber of the vacuum coating equipment is equipped with a rotating shaft assembly, which includes a rotating shaft and bearings. The rotating shaft assembly is used to support and guide the mechanical parts to rotate. During the operation of the coating equipment, the bearings and the rotating shaft will vibrate relative to each other and rub against each other. After the bearings and the rotating shaft rub against each other, iron filings will be generated. The iron filings will fall randomly and reduce the purity of the vacuum chamber in the vacuum coating equipment, thereby affecting the adhesion effect between the film and the coated product during vacuum coating.

[0004] The existing chip removal method in vacuum coating equipment involves opening the vacuum chamber to clean the iron filings after coating is completed. This method cannot promptly remove newly generated iron filings during the coating process, which affects the purity of the vacuum chamber in the vacuum coating equipment and thus the coating effect.

[0005] Therefore, it is urgent to address the issue of newly generated iron filings during the coating process in order to ensure the purity of the vacuum chamber in the vacuum coating equipment. Utility Model Content

[0006] In order to improve the purity of the vacuum chamber in a vacuum coating equipment, this application provides a rotating shaft assembly for use in a vacuum coating equipment.

[0007] This application provides a rotating shaft assembly for a vacuum coating equipment, which adopts the following technical solution:

[0008] A rotating shaft assembly for a vacuum coating equipment includes a rotating shaft and a bearing disposed on the rotating shaft. A magnetic attraction assembly is sleeved on the rotating shaft. The bearing is disposed at a height higher than the magnetic attraction assembly. The magnetic attraction assembly includes two magnetically attracted elements, which are symmetrically magnetically attracted on the rotating shaft. The magnetic lines of the magnetic elements are arranged along the axial direction of the rotating shaft.

[0009] By adopting the above technical solution, the bearing is installed on the rotating shaft. During the operation of the coating equipment, the bearing and the rotating shaft will vibrate relative to each other and rub against each other. After the bearing and the rotating shaft rub against each other, some iron filings will be generated. A magnetic suction assembly is placed on the rotating shaft. The magnetic suction assembly includes two magnetically attracted components. The two magnetic components are symmetrically fixed on the rotating shaft by magnetic attraction. The magnetic field direction of the magnetic components is set along the axial direction of the rotating shaft, and the magnetic suction assembly is located below the bearing. The iron filings generated by the friction between the rotating shaft and the bearing can be attracted by the magnetic components. Compared with the prior art, this magnetic component can attract the newly generated iron filings during the operation of the coating equipment, so that the iron filings in the vacuum chamber can be cleaned in time, avoiding affecting the purity of the vacuum chamber and thus affecting the adhesion effect between the film and the coated product.

[0010] Optionally, the two magnetic components are combined into a ring, with a channel between the magnetic components for the shaft to pass through.

[0011] By adopting the above technical solution, the two magnetic components are combined into a ring and a channel is formed between them. The two magnetic components are placed on the rotating shaft through the channel, which makes it easy to attract iron filings that fall around the rotating shaft.

[0012] Optionally, the magnetic component is covered with a protective assembly, which is fitted onto the rotating shaft. The protective assembly is a non-magnetic protective sleeve.

[0013] By adopting the above technical solution, the protective component is wrapped around the magnetic component to protect it. The protective component is placed on the rotating shaft to ensure that the magnetic component is also placed smoothly on the rotating shaft. The protective component is made of non-magnetic material to ensure that the magnetic field of the magnetic component can pass through the protective component to successfully attract iron filings.

[0014] Optionally, the protective component includes an inner protective sleeve, one side of which has an installation opening, and the magnetic component is inserted into the installation opening and embedded in the inner protective sleeve.

[0015] By adopting the above technical solution, the magnetic component is inserted into the mounting port and then embedded in the inner protective sleeve. The inner protective sleeve wraps around the magnetic component and fits against the side wall of the magnetic component, ensuring that the inner protective sleeve provides stable protection for the magnetic component.

[0016] Optionally, the protective component further includes an outer protective sleeve, which is mounted on the inner protective sleeve and covers the mounting opening.

[0017] By adopting the above technical solution, the outer protective sleeve covers the mounting opening, which protects the magnetic components exposed at the mounting opening. At the same time, the outer protective sleeve is installed on the inner protective sleeve, which further reinforces the inner protective sleeve covering the magnetic components.

[0018] Optionally, two inner protective sleeves are symmetrically arranged, and the two inner protective sleeves form a channel for the rotating shaft to pass through.

[0019] By adopting the above technical solution, two inner protective sleeves are provided, which makes it easy for the magnetic component to be inserted into the installation port and embedded in the inner protective sleeve. A second channel is formed between the two inner protective sleeves, which makes it easy for the rotating shaft to be inserted into the second channel, thereby realizing the protective component being placed on the rotating shaft.

[0020] Optionally, the top and bottom edges of the inner protective sleeve extend outward to form a flap, which covers the top and bottom of the magnetic component.

[0021] By adopting the above technical solution, the flip cover covers the top and bottom of the magnetic component, shielding the top and bottom of the magnetic component to prevent it from being bumped or knocked, and protecting the two end faces of the magnetic component.

[0022] Optionally, the top edge of the outer protective sleeve extends toward the axis of rotation to form a flange, which fits onto the flip cover.

[0023] By adopting the above technical solution, the flange is attached to the top flap of the inner protective cover, which further stabilizes the position of the inner protective cover and prevents it from falling off the magnetic component, thus further enhancing the protective effect of the magnetic component.

[0024] Optionally, the outer protective sleeve has an extension plate 1 extending outward from its bottom outer edge, and the inner protective sleeve has an extension plate 2 extending outward from its bottom outer edge that abuts against the extension plate 1. The extension plate 2 has a detachable locking component, and the extension plate 1 and the extension plate 2 are locked and fixed by the locking component.

[0025] By adopting the above technical solution, the locking component fixes the extension plate one and the extension plate two. The fixation of the extension plate one and the extension plate two fixes the outer protective sleeve and the inner protective sleeve, ensuring that the outer protective sleeve and the inner protective sleeve are firmly wrapped around the magnetic component, thereby ensuring the stability of the protective effect of the outer protective sleeve and the inner protective sleeve on the magnetic component.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The bearing is mounted on a rotating shaft. After the shaft rotates, there is friction between the bearing and the shaft. Iron filings generated by this friction will appear in the vacuum chamber of the coating equipment. A magnetic suction assembly is placed on the rotating shaft. The magnetic suction assembly includes two magnetically attracted components. The two magnetic components are symmetrically fixed on the rotating shaft by magnetic attraction. The magnetic field direction of the magnetic components is set along the axial direction of the rotating shaft. The magnetic suction assembly is located below the bearing. The iron filings generated by the friction between the shaft and the bearing can be attracted by the magnetic components. Compared with the prior art, this magnetic component can attract the newly generated iron filings during the operation of the coating equipment, so that the iron filings in the vacuum chamber can be cleaned in time, avoiding affecting the purity of the vacuum chamber and thus affecting the adhesion effect between the film and the coated product.

[0028] 2. After the two magnetic components are combined into a ring, a channel is formed between them. The two magnetic components are placed on the rotating shaft through the channel to facilitate the attraction of iron filings that fall around the rotating shaft.

[0029] 3. The protective component covers the magnetic component, protecting it. The protective component is placed on the rotating shaft to ensure that the magnetic component is also smoothly placed on the rotating shaft. The protective component is made of non-magnetic material to ensure that the magnetic field of the magnetic component can pass through the protective component to successfully attract iron filings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0031] Figure 2 This is a partial cross-sectional view of an embodiment of this application;

[0032] Figure 3 for Figure 2 The enlarged diagram of section A shows the positional relationship of the protective components covering the magnetic components.

[0033] Reference numerals: 1. Rotating shaft assembly; 2. Bearing; 3. Rotating shaft; 4. Magnetic suction assembly; 5. Magnetic suction element; 6. Channel one; 7. Protective assembly; 8. Inner protective sleeve; 9. Channel two; 10. Flip cover; 11. Mounting port; 12. Outer protective sleeve; 13. Flanged edge; 14. Extension plate one; 15. Extension plate two; 16. Through hole; 17. Locking hole; 18. Locking element; 19. Locking head; 20. Locking screw. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0035] Example:

[0036] A rotating shaft assembly for use in a vacuum coating apparatus, reference Figure 1The rotating shaft assembly 1 includes a bearing 2 and a rotating shaft 3 mounted on the bearing 2. During the operation of the coating equipment, the bearing 2 and the rotating shaft 3 will vibrate relative to each other and rub against each other. After the bearing 2 and the rotating shaft 3 rub against each other, some iron filings will be generated. The iron filings falling randomly will affect the purity of the vacuum chamber. A magnetic suction assembly 4 is placed on the rotating shaft 3. The magnetic suction assembly 4 is located below the bearing 2 and can attract the iron filings falling between the bearing 2 and the rotating shaft 3 to avoid the iron filings affecting the adhesion effect between the film and the coated product during vacuum coating.

[0037] refer to Figure 1 and Figure 3 The magnetic suction assembly 4 includes two magnetically attracted components 5. Since the coating equipment operates at high temperatures, the magnetic components 5 need to have excellent high-temperature resistance to avoid affecting their magnetism in high-temperature environments. In this embodiment, the magnetic components 5 are selected as samarium cobalt magnets. Both magnetic components 5 are semi-circular in shape, and when combined into a ring, a channel 6 is formed between them for the rotating shaft 3 to pass through. The two magnetic components 5 are magnetically attracted, thus magnetically fixing them to the rotating shaft 3, ensuring that the magnetic suction assembly 4 is stably mounted on the rotating shaft 3. The magnetic lines of the magnetic components 5 are arranged along the axial direction of the rotating shaft 3, and the magnetic field direction of the magnetic components 5 is parallel to the axis of the rotating shaft 3. The magnetic components 5 can attract metal along the axial direction of the rotating shaft 3. The magnetic components 5 are located below the bearing 2, ensuring that they can smoothly attract iron filings falling between the bearing 2 and the rotating shaft 3.

[0038] refer to Figure 2 and Figure 3 Due to its unique molecular structure, samarium cobalt magnets are prone to breakage and fracture under external force. Therefore, a protective component 7 is provided on the magnetic attractor 5. The protective component 7 encloses the magnetic attractor 5, protecting it. The protective component 7 is made of a non-magnetic material. In this embodiment, the protective component 7 is made of austenitic stainless steel and is relatively thin. Austenitic stainless steel is a non-magnetic material, allowing the magnetic force of the magnetic attractor 5 to penetrate the austenitic stainless steel and act on the iron filings, thereby generating an attractive force. This ensures that the magnetic attractor 5 can successfully attract iron filings after being enclosed by the protective component 7, and also ensures that the magnetic attractor 5 can be magnetically fixed to the rotating shaft 3. At the same time, austenitic stainless steel has good high-temperature resistance and will not be affected by the high-temperature environment inside the vacuum coating equipment. The protective component 7 includes an inner protective sleeve 8, which is ring-shaped. Figure 1Two inner protective sleeves 8 are symmetrically arranged, forming a channel 2 9 between them. The rotating shaft 3 passes through the inner protective sleeve 8 via the channel 2 9, ensuring that the magnetic suction component 5, which is covered by the inner protective sleeve 8, is smoothly placed on the rotating shaft 3. The top and bottom edges of the inner protective sleeve 8 extend outward to form a flip cover 10, which covers the top and bottom end faces of the magnetic suction component 5, thus protecting the top and bottom ends of the magnetic suction component 5. An installation port 11 is provided on one side of the inner protective sleeve 8, located between the two flip covers 10. The magnetic suction component 5 is inserted through the installation port 11 and embedded in the inner protective sleeve 8. The inner side, top end face, and bottom end face of the magnetic suction component 5 all abut against the annular inner protective sleeve 8, further enhancing the protective effect of the magnetic suction component 5.

[0039] refer to Figure 1 and Figure 3 The protective component 7 also includes an outer protective sleeve 12, which is ring-shaped and has two sleeves. The outer protective sleeve 12 is installed on the inner protective sleeve 8 and covers the mounting opening 11 of the inner protective sleeve 8, so that the inner, outer, top and bottom of the ring-shaped magnetic suction component 4 are all covered by the protective component 7, ensuring that the magnetic suction component 5 can stably attract iron filings generated in the vacuum chamber for a long time. The top edge of the outer protective sleeve 12 is provided with a flange 13, which extends along the axial direction of the rotating shaft 3. The flange 13 fits against the flip cover 10 at the top of the inner protective sleeve 8, further strengthening the contact effect between the flip cover 10 and the magnetic suction component 5, and preventing the inner protective sleeve 8 from falling off the magnetic suction component 5.

[0040] refer to Figure 1 and Figure 3 The bottom edge of the outer protective sleeve 12 extends outward to form an extension plate 14, and the bottom edge of the inner protective sleeve 8 extends outward to form an extension plate 15. Both extension plates 14 and 15 are annular structures, respectively surrounding the outer protective sleeve 12 and the inner protective sleeve 8. Extension plates 14 and 25 abut against each other, with extension plate 14 positioned above extension plate 25. Multiple through holes 16 are provided on extension plate 14, and multiple locking holes 17 are provided on extension plate 25 symmetrically arranged with respect to the through holes 16. Locking elements 18 are provided in the locking holes 17, and each locking element 18 includes a locking head 19 and a locking screw 20. In this embodiment... In the example, the locking hole 17 is a threaded hole, the locking head 19 is located in the through hole 16, the locking screw 20 passes through the through hole 16 and is threadedly connected to the locking hole 17, the locking head 19 is located in the through hole 16 and is flush with the extension plate 14, which restricts the movement of the extension plate 14, and the locking screw 20 is threadedly connected in the locking hole 17, which restricts the movement of the extension plate 15. This allows the locking hole 17 to fix the extension plate 14 and the extension plate 15 as a whole, thereby fixing the outer protective sleeve 12 and the inner protective sleeve 8, ensuring that the magnetic suction component 5 is stably covered in the protective component 7, so that the magnetic suction component 5 can smoothly attract the iron filings generated during the operation of the coating equipment.

[0041] The implementation principle of this application embodiment is as follows: the protective component 7 is a non-magnetic protective sleeve. After the magnetic suction component 5 is covered inside the protective component 7, it can smoothly attract iron filings and magnetically fix it on the rotating shaft 3. The protective component 7 includes an outer protective sleeve 12 and an inner protective sleeve 8. The magnetic suction component 5 is embedded in the inner protective sleeve 8 through the mounting port 11. The top and bottom ends of the inner protective sleeve 8 are provided with flip covers 10, which cover the top and bottom ends of the magnetic suction component 5. The outer protective sleeve 12 is located on the inner protective sleeve 8 and covers the mounting port 11. The magnetic suction component 5 is fully covered by the protective component 7. The top edge of the outer protective sleeve 12 extends inward with a flange 13, which is located on the flip cover 10 at the top of the inner protective sleeve 8 and abuts against the flip cover 10, strengthening the abutment effect between the inner protective sleeve 8 and the magnetic suction component 5. The extension plate 14 of the protective sleeve 12 abuts against the extension plate 15 of the inner protective sleeve 8. The locking head 19 of the locking member 18 is inserted into the through hole 16 on the extension plate 14. The locking screw 20 of the locking member 18 is inserted into the locking hole 17 of the extension plate 15 and is threaded into the locking hole 17. The extension plate 14 and the extension plate 15 are locked and fixed together by the locking member 18, ensuring that the magnetic suction member 5 is stably covered in the protective component 7. The magnetic suction member 5 is in the shape of a ring and there are two of them. A channel 16 is formed between the two magnetic suction members 5, which makes it easy for the magnetic suction component 4 to be placed on the rotating shaft 3. There are two outer protective sleeves 12 and two inner protective sleeves 8. A channel 29 is formed between the two inner protective sleeves 8, which ensures that the magnetic suction component 4 can be smoothly placed on the rotating shaft 3 after being covered by the inner protective sleeve 8.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotating shaft assembly for use in a vacuum coating apparatus, comprising a rotating shaft (3) and a bearing (2) disposed on the rotating shaft (3), characterized in that: A magnetic suction assembly (4) is fitted on the rotating shaft (3). The bearing (2) is set at a height higher than the magnetic suction assembly (4). The magnetic suction assembly (4) includes two magnetically attracted elements (5). The two magnetically attracted elements (5) are symmetrically magnetically attracted on the rotating shaft (3). The magnetic lines of the magnetic elements (5) are arranged along the axial direction of the rotating shaft (3).

2. The rotating shaft assembly for a vacuum coating equipment according to claim 1, characterized in that: The two magnetic attractors (5) are combined into a ring, and a channel (6) is formed between the magnetic attractors (5) for the rotating shaft (3) to pass through.

3. A rotating shaft assembly for a vacuum coating equipment according to claim 1, characterized in that: The magnetic suction component (5) is covered with a protective component (7), which is placed on the rotating shaft (3). The protective component (7) is a non-magnetic protective sleeve.

4. A rotating shaft assembly for a vacuum coating equipment according to claim 3, characterized in that: The protective component (7) includes an inner protective sleeve (8), and an installation port (11) is provided on one side of the inner protective sleeve (8). The magnetic suction member (5) is inserted into the installation port (11) and then embedded in the inner protective sleeve (8).

5. A rotating shaft assembly for a vacuum coating equipment according to claim 4, characterized in that: The protective component (7) also includes an outer protective sleeve (12), which is installed on the inner protective sleeve (8) and covers the mounting opening (11).

6. A rotating shaft assembly for a vacuum coating equipment according to claim 4, characterized in that: Two inner protective sleeves (8) are symmetrically arranged, and the two inner protective sleeves (8) form a channel (9) for the rotating shaft (3) to pass through.

7. A rotating shaft assembly for a vacuum coating equipment according to claim 5, characterized in that: The top and bottom edges of the inner protective sleeve (8) extend outward to form a flap (10), which covers the top and bottom of the magnetic suction member (5).

8. A rotating shaft assembly for a vacuum coating equipment according to claim 7, characterized in that: The top edge of the outer protective sleeve (12) extends toward the axis of the rotating shaft (3) to form a flange (13), and the flange (13) is attached to the flip cover (10).

9. A rotating shaft assembly for a vacuum coating equipment according to claim 5, characterized in that: The outer protective sleeve (12) has an extension plate 1 (14) extending outward from the bottom outer edge, and the inner protective sleeve (8) has an extension plate 2 (15) extending outward from the bottom outer edge that abuts against the extension plate 1 (14). The extension plate 2 (15) has a detachable locking member (18), and the extension plate 1 (14) and the extension plate 2 (15) are locked and fixed by the locking member (18).

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