Framework sealing structure

Abstract

The utility model discloses a framework sealing structure in the field of conductive film production, which comprises a cooling main roller connected with the cavity wall of a vacuum cavity, the cavity wall of the vacuum cavity is provided with a cooling main roller mounting hole, and the cooling main roller is rotatably arranged in the cooling main roller mounting hole through a sealing mechanism; the sealing mechanism comprises an oil seal flange, an oil seal assembly is arranged in the oil seal flange and arranged on the outer side of the cooling main roller in a sleeving mode, and a plurality of first sealing rings are arranged between the oil seal assembly and the cooling main roller. According to the cooling roller, the problem that air leakage occurs between the cooling roller and the evaporation equipment due to the fact that the sealing rings are abraded when an existing cooling roller rotates for a long time is solved, the situation that air leakage occurs between the cooling roller and the evaporation equipment is prevented through double sealing of the oil seal assembly and the first sealing ring, and the vacuum degree of the evaporation equipment is improved. In addition, by arranging the oil seal assembly, lubricating oil can be added regularly, abrasion of the sealing ring is reduced, and the service life of the sealing ring is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive film production, in particular to a skeleton sealing structure. Background Art

[0002] Conductive film is a polymer material with copper or aluminum layers plated on the top and bottom surfaces of substrates such as PET and PP. It has a sandwich structure and is also called a composite thin film current collector. It is a type of material with many good properties and is widely used in lithium-ion batteries, mainly as a battery current collector in lithium-ion batteries.

[0003] Conductive films can be prepared by vacuum evaporation coating method, which is a vacuum coating method that heats the evaporating material with an evaporator under vacuum conditions to make it sublime, and the evaporating particle flow is directly shot to the substrate, and deposited on the substrate to form a thin film, or heated to evaporate the coating material. In evaporation coating, the substrate film must be prevented from being burned through during coating, and a rotating cooling roller will be used to cool the film. The cooling roller is driven by an external drive component, and a coolant is introduced into the cooling roller from the outside.

[0004] In order to ensure the vacuum degree inside the evaporation device and improve the quality of the coating, the sealing between the cooling roller and the evaporation device is extremely important. In the prior art, the cooling roller and the evaporation device are sealed by a sealing ring. However, the long-term rotation of the cooling roller will cause the sealing ring to wear, and air leakage will occur between the cooling roller and the evaporation device, resulting in insufficient vacuum degree inside the evaporation device, affecting the coating of the conductive film, thereby affecting the production quality of the conductive film.

[0005] The above defects need to be solved urgently. Utility Model Content

[0006] In order to solve the problem that the sealing ring of the existing cooling roller may be worn out due to long-term rotation, resulting in air leakage between the cooling roller and the evaporation device, the utility model provides a skeleton sealing structure.

[0007] The technical solution of the utility model is as follows:

[0008] A skeleton sealing structure, comprising a cooling main roller connected to a vacuum chamber wall, wherein a cooling main roller mounting hole is provided on the vacuum chamber wall, and the cooling main roller is rotatably arranged in the cooling main roller mounting hole through a sealing mechanism;

[0009] The sealing mechanism comprises an oil seal flange, an oil seal assembly is arranged inside the oil seal flange, the oil seal assembly is sleeved on the outer side of the cooling main roller, and a plurality of first sealing rings are arranged between the oil seal assembly and the cooling main roller.

[0010] According to the utility model of the above scheme, the oil seal assembly includes a sealing sleeve and a skeleton oil seal, the sealing sleeve is sleeved on the outside of the cooling main roller, and the skeleton oil seal is sleeved on the outside of the sealing sleeve.

[0011] According to the utility model of the above scheme, a plurality of first annular grooves arranged at intervals are arranged on the inner side of the sealing sleeve, a plurality of the first sealing rings are arranged in the corresponding first annular grooves, and the first sealing rings are sleeved on the cooling main roller.

[0012] According to the above-mentioned solution of the utility model, there are two skeleton oil seals, an oil seal spacer is arranged between the two skeleton oil seals, and the oil seal spacer is sleeved on the sealing shaft sleeve.

[0013] According to the utility model of the above scheme, a first annular limiting groove is arranged on the outer side of the sealing sleeve, and the oil seal retaining spring is arranged in the first annular limiting groove to limit the skeleton oil seal.

[0014] According to the utility model of the above scheme, the sealing mechanism also includes a mounting flange, one end of the mounting flange is inserted into the mounting hole of the cooling main roller, the oil seal flange is sealed and installed on the other end of the mounting flange through a connecting piece, one end of the cooling main roller passes through the mounting flange and the oil seal flange, and the sealing is arranged to rotate.

[0015] According to the utility model of the above scheme, a plurality of rolling bearings are arranged inside the mounting flange, and the rolling bearings are sleeved on the outer side of the cooling main roller.

[0016] According to the above-mentioned solution of the utility model, there are two rolling bearings, and a bearing spacer is arranged between the two rolling bearings, and the bearing spacer is sleeved on the outer side of the cooling main roller.

[0017] According to the utility model of the above scheme, a second annular limiting groove is circumferentially arranged on one side of the cooling main roller close to the oil seal flange, and a bearing retaining ring is arranged in the second annular limiting groove to limit the rolling bearing.

[0018] According to the above-mentioned solution of the utility model, a second sealing ring is arranged between the mounting flange and the wall of the vacuum chamber.

[0019] The utility model according to the above scheme has the following beneficial effects:

[0020] In the above-mentioned skeleton sealing structure, the oil seal assembly is sleeved on the outer side of the cooling main roller, and a plurality of first sealing rings are arranged between the oil seal assembly and the cooling main roller. The double sealing of the oil seal assembly and the first sealing ring prevents leakage between the cooling roller and the evaporation device, thereby improving the vacuum degree of the evaporation device. In addition, the setting of the oil seal assembly enables regular addition of lubricating oil, reduces the wear of the sealing ring, and prolongs the service life of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the utility model;

[0023] Figure 3 for Figure 2 Enlarged view of part A.

[0024] In the figure, 1. vacuum chamber wall; 2. cooling main roller; 3. sealing mechanism; 31. oil seal flange; 32. mounting flange; 331. sealing sleeve; 332. skeleton oil seal; 333. oil seal spacer; 334. oil seal retaining spring; 335. bearing retaining spring; 34. first sealing ring; 35. rolling bearing; 4. first connecting piece; 5. second connecting piece; 6. second sealing ring. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] like Figure 1 As shown, the utility model provides a skeleton sealing structure, including a cooling main roller 2 connected to a vacuum chamber wall 1, a cooling main roller mounting hole is provided on the vacuum chamber wall 1, one end of the cooling main roller 2 is rotatably arranged in the cooling main roller mounting hole through a sealing mechanism 3, that is, the sealing mechanism 3 is arranged between the cooling main roller 2 and the evaporation device to seal the connection between the two, thereby improving the vacuum degree of the evaporation device.

[0027] like Figure 2As shown, in this embodiment, the sealing mechanism 3 includes an oil seal flange 31 and a mounting flange 32, one end of the mounting flange 32 is inserted into the mounting hole of the cooling main roller, and the other end of the mounting flange 32 is connected to the outer wall of the vacuum chamber wall 1 through the first connecting member 4, so as to fix the mounting flange 32 on the mounting hole of the cooling main roller. In addition, the first connecting member 4 can be designed as a bolt. Of course, in actual design, the structure of the first connecting member 4 can be designed according to actual needs. In addition, the oil seal flange 31 is sealed and installed on the mounting flange 32 through the second connecting member 5, and the oil seal flange 31 is arranged on the outside of the evaporation device. The second connecting member 5 can be designed as a bolt. Of course, in actual design, the structure of the second connecting member 5 can be designed according to actual conditions.

[0028] like Figure 2 As shown, in this embodiment, a sealing cavity is provided inside the oil seal flange 31, and an installation cavity is provided inside the installation flange 32, and the sealing cavity is communicated with the installation cavity, one end of the cooling main roller 2 passes through the sealing cavity and the installation cavity, and the sealing rotation is provided, so as to facilitate the rotation of the cooling main roller 2. In addition, the diameter of the sealing cavity can be designed to be the same as the diameter of the installation cavity, so as to facilitate the installation of the components inside the sealing cavity and the installation cavity. Of course, in actual design, the diameter relationship between the installation cavity and the sealing cavity can be designed according to actual needs.

[0029] like Figure 2 As shown, in this embodiment, an oil seal assembly is arranged in the sealing cavity of the oil seal flange 31, the oil seal assembly is sleeved on the outer side of the cooling main roller 2, and a plurality of first sealing rings 34 are arranged between the oil seal assembly and the cooling main roller 2. The double sealing of the oil seal assembly and the first sealing ring 34 is utilized to prevent air leakage between the cooling roller and the evaporation device, thereby improving the vacuum degree of the evaporation device.

[0030] like Figure 2 , Figure 3 As shown, in this embodiment, the oil seal assembly includes a sealing sleeve 331 and a skeleton oil seal 332. The sealing sleeve 331 is sleeved on the outside of the cooling main roller 2, and the skeleton oil seal 332 is sleeved on the outside of the sealing sleeve 331. The function of the skeleton oil seal 332 is to isolate the parts of the transmission components that need lubrication from the external environment to prevent the lubricating oil from leaking. The skeleton is like the steel bars in the concrete component, which plays a reinforcing role and enables the oil seal to maintain its shape and tension. The skeleton oil seal 332 can be divided into a single-lip skeleton oil seal 332 and a double-lip skeleton oil seal 332 according to the structural form. The lip of the double-lip skeleton oil seal 332 plays a dustproof role to prevent external dust, impurities, etc. from entering the machine. In actual design, the structure of the skeleton oil seal 332 can be designed according to actual needs.

[0031] like Figure 2 , Figure 3As shown, in this embodiment, a plurality of first annular grooves arranged at intervals are arranged on the inner side of the sealing sleeve 331, a plurality of first sealing rings 34 are arranged in the corresponding first annular grooves, and the first sealing ring 34 is sleeved on the cooling main roller 2, so that the first sealing ring 34 can be closely matched with the sealing sleeve 331, thereby enhancing the sealing effect between the cooling main shaft and the evaporation device. In addition, the number of the first annular grooves can be designed to be three, and the three first annular grooves are evenly arranged at intervals, that is, the first sealing ring 34 is evenly sleeved on the cooling main roller 2. Of course, in actual design, the number of the first annular grooves and the first sealing ring 34 can be designed according to actual needs.

[0032] like Figure 2 , Figure 3 As shown, in this embodiment, the skeleton oil seal 332 abuts against the inner wall of the sealing cavity of the oil seal flange 31. By regularly adding lubricating oil, the skeleton oil seal 332 can maintain its good lubrication state, thereby reducing the wear of the sealing ring and extending the service life of the sealing ring. In addition, the skeleton oil seal 332 can be designed as two, and an oil seal spacer 333 is arranged between the two skeleton oil seals 332, and the oil seal spacer 333 is sleeved on the sealing sleeve 331. The oil seal spacer 333 can set the two skeleton oil seals 332 at intervals, and at the same time can more closely connect the sealing sleeve 331 with the first sealing ring 34 on the cooling main shaft, so as to prevent air leakage, thereby improving the vacuum degree of the evaporation setting.

[0033] like Figure 2 , Figure 3 As shown, in this embodiment, a first annular limit groove is provided on the outer side of the sealing sleeve 331, and an oil seal retaining spring 334 is provided in the first annular limit groove, so that the skeleton oil seal 332 away from the mounting flange 32 abuts against the side wall of the sealing cavity, and the skeleton oil seal 332 abuts against another skeleton oil seal 332 to limit the position of the skeleton oil seal 332, so that when the cooling main shaft rotates, the skeleton oil seal 332 will not move along the axial direction of the sealing sleeve 331, thereby improving the stability of the assembly.

[0034] In this embodiment, a plurality of rolling bearings 35 are arranged inside the mounting flange 32, and the rolling bearings 35 are sleeved on the outside of the cooling main roller 2, so as to facilitate the rotation of the cooling main roller 2 and improve the cooling effect of the film. In addition, there are two rolling bearings 35, and a bearing spacer is arranged between the two rolling bearings 35, and the bearing spacer is sleeved on the outside of the cooling main roller 2, so that the two rolling bearings 35 are separated and arranged, so that the cooling main roller 2 is more stable when rotating, and the balance of the rotation of the cooling main roller 2 is improved. Of course, in actual design, the number of rolling bearings 35 can be designed according to actual needs. In addition, a second annular limiting groove is circumferentially arranged on one side of the cooling main roller 2 close to the oil seal flange 31, and the bearing retaining spring 335 is arranged in the second annular limiting groove, and the bearing retaining spring 335 abuts against the rolling bearing 35 close to the oil seal flange 31, so that the other rolling bearing 35 abuts against the side wall of the mounting flange 32, thereby limiting the positions of the two rolling bearings 35, so that the rolling bearing 35 will not move along the axial direction of the cooling main shaft when the cooling main shaft rotates, and the stability of the assembly is improved.

[0035] like Figure 2 , Figure 3 As shown, in this embodiment, a second sealing ring groove is provided on one side of the mounting flange 32 and the vacuum chamber wall 1, and a second sealing ring 6 is provided in the second sealing ring groove to improve the sealing between the mounting flange 32 and the vacuum chamber wall 1, thereby further preventing air leakage between the cooling roller and the evaporation device and improving the vacuum degree of the evaporation device.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0037] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A skeleton sealing structure, comprising a cooling main roller connected to a vacuum chamber wall, wherein a cooling main roller mounting hole is provided on the vacuum chamber wall, characterized in that: The cooling main roller is rotatably arranged in the cooling main roller installation hole through a sealing mechanism; The sealing mechanism comprises an oil seal flange, an oil seal assembly is arranged inside the oil seal flange, the oil seal assembly is sleeved on the outer side of the cooling main roller, and a plurality of first sealing rings are arranged between the oil seal assembly and the cooling main roller.

2. The skeleton sealing structure according to claim 1, characterized in that: The oil seal assembly comprises a sealing sleeve and a skeleton oil seal. The sealing sleeve is sleeved on the outer side of the cooling main roller, and the skeleton oil seal is sleeved on the outer side of the sealing sleeve.

3. The skeleton sealing structure according to claim 2, characterized in that: A plurality of first annular grooves are arranged at intervals along the radial direction on the inner side of the sealing sleeve, a plurality of the first sealing rings are arranged in the corresponding first annular grooves, and the first sealing rings are sleeved on the cooling main roller.

4. The skeleton sealing structure according to claim 2, characterized in that: There are two skeleton oil seals, an oil seal spacer is arranged between the two skeleton oil seals, and the oil seal spacer is sleeved on the sealing shaft sleeve.

5. The skeleton sealing structure according to any one of claims 2 to 4, characterized in that: A first annular limiting groove and an oil seal retaining ring are arranged on the outer side of the sealing sleeve. The oil seal retaining ring is arranged in the first annular limiting groove to limit the skeleton oil seal.

6. The skeleton sealing structure according to any one of claims 1 to 4, characterized in that: The sealing mechanism also includes a mounting flange, one end of which is inserted into the mounting hole of the cooling main roller, and the oil seal flange is sealed and installed on the other end of the mounting flange through a connecting piece. One end of the cooling main roller passes through the mounting flange and the oil seal flange, and is sealed and rotatably arranged.

7. The skeleton sealing structure according to claim 6, characterized in that: A plurality of rolling bearings are arranged inside the mounting flange, and the rolling bearings are sleeved on the outer side of the cooling main roller.

8. The skeleton sealing structure according to claim 7, characterized in that: There are two rolling bearings, and a bearing spacer is arranged between the two rolling bearings, and the bearing spacer is sleeved on the outer side of the cooling main roller.

9. The skeleton sealing structure according to claim 7 or 8, characterized in that: A second annular limiting groove and a bearing retaining spring are circumferentially arranged on one side of the cooling main roller close to the oil seal flange. The bearing retaining spring is arranged in the second annular limiting groove to limit the rolling bearing.

10. The skeleton sealing structure according to claim 6, characterized in that: A second sealing ring is arranged between the mounting flange and the wall of the vacuum chamber.

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