Rotating stand insulation device of vacuum coating machine
By using a stepped ceramic base with threaded connection in the insulation device of the vacuum coating machine's rotating frame, the problem of ceramic parts expanding and deforming at high temperatures was solved, thus improving insulation reliability and coating quality.
Patent Information
- Application Number
- CN202520124519.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In the rotating frame insulation device of traditional vacuum coating machines, ceramic parts are prone to expansion and deformation under high temperature, leading to damage and unreliable insulation, which affects the uniformity of coating and the film formation speed.
The ceramic base is designed with a stepped shape, combined with threaded connection and nut fixation, to ensure that there is a gap between the ceramic pad and the shielding cover to prevent high temperature expansion and deformation. The design of connecting post and gasket avoids the nut from being too tight, forming an annular space to prevent the film layer from adhering.
It improves the reliability and durability of the insulation device, prevents damage to ceramic parts, and ensures coating uniformity and film formation speed.
Smart Images
Figure CN223660191U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum coating machine technology, and more specifically, to a rotating frame insulation device for a vacuum coating machine. Background Technology
[0002] When using a vacuum coating machine to coat products, the more uniform the film layer on the product surface, the better the product's performance. Therefore, the product needs to rotate during the coating process, which is achieved by a rotating frame mechanism. Within this mechanism, gears mesh to rotate the product. To ensure smooth gear meshing, a shielding cover is installed within the rotating frame mechanism. This cover prevents the film from coating the gears and also prevents dust from falling into the gear mechanism. The rotating frame mechanism requires electricity during coating. A charged shielding cover would absorb a large amount of film, affecting the uniformity of the coating and the film formation speed. Therefore, an insulating device is needed between the shielding cover and other parts of the rotating frame mechanism to keep the shielding cover at a floating potential.
[0003] In insulation devices, Teflon or ceramics are typically used as insulating materials. However, Teflon softens and produces gas at high temperatures, affecting insulation reliability and coating quality; therefore, ceramics are generally preferred. Traditional insulation devices suffer from frequent ceramic component breakage and unreliable insulation, leading to short circuits between the shielding cover and other rotating mechanisms, resulting in a high failure rate. Ceramic component breakage occurs because some components in the insulation device and rotating mechanism expand and deform at high temperatures, crushing the ceramic. Unreliable insulation is due to the coating process where the insulating components are coated with a film, rendering them insulated. To address these issues, we propose a rotating frame insulation device for a vacuum coating machine. Utility Model Content
[0004] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide a rotating frame insulation device for a vacuum coating machine.
[0005] To solve the above problems, the present invention adopts the following technical solution:
[0006] An insulating device for a rotating frame of a vacuum coating machine includes a rotating frame mechanism. The rotating frame mechanism includes a shielding cover and a gear mechanism. The shielding cover is fitted over the outside of the gear mechanism. Multiple insulating mechanisms are provided between the gear mechanism and the shielding cover. Each insulating mechanism includes a connecting post threaded onto the gear mechanism and a through slot formed on the shielding cover. A ceramic seat is fitted over the outside of the connecting post. The top of the ceramic seat extends through the through slot to the top of the shielding cover and is fitted with a ceramic pad. A gasket is fitted over the outside of the connecting post and on top of the ceramic pad. A nut is threaded onto the top of the connecting post. A side plate is fitted over the top of the shielding cover and over the outside of the ceramic pad. A bottom plate is fixedly connected to the bottom of the side plate. The bottom plate is installed on the top surface of the shielding cover. A top plate is fixedly connected to the top of the side plate.
[0007] As a preferred embodiment of this utility model, the top surface of the shielding cover is provided with a screw hole, and the bottom plate is fitted with an internal hexagonal head screw, the bottom end of which is threaded into the inner cavity of the screw hole.
[0008] As a preferred embodiment of this utility model, the top surface of the shielding cover is provided with multiple product placement positions.
[0009] As a preferred embodiment of this utility model, external threaded grooves are provided on the outer sides of both the top and bottom ends of the connecting column.
[0010] In a preferred embodiment of this invention, the bottom surface of the nut and the top surface of the washer do not contact each other.
[0011] In a preferred embodiment of this utility model, the ceramic base is stepped, and the inner side of the shielding cover is in contact with the top stepped surface of the ceramic base.
[0012] The advantages of this utility model are:
[0013] (1) In this utility model, ceramic parts are used as insulating parts. The outer ring of the ceramic seat is stepped. When the insulating mechanism and the rotating frame mechanism are used together, there are fixed gaps between the relevant components to prevent the ceramic parts from being damaged due to high temperature expansion and deformation. In addition, through the reasonable design of the thread length at the upper end of the connecting column, a certain gap is ensured between the nut and the washer and the ceramic pad after the nut is fixed, so as to avoid the ceramic pad being damaged due to the nut being too tight. At the same time, it prevents the ceramic pad from being damaged due to high temperature expansion, thus improving the practicality of the vacuum coating machine rotating frame insulating device.
[0014] (2) In this utility model, the bottom plate, side plate and top plate are fixed together to form an integral structure, and an annular space is formed inside it, so that the relevant insulating parts are located inside the annular space, preventing the film layer from being deposited on the insulating parts, ensuring insulation, and preventing damage to the insulating parts due to collision, thereby improving the working quality of the vacuum coating machine rotating frame insulation device. Attached Figure Description
[0015] Figure 1 This is a schematic front sectional view of the present invention;
[0016] Figure 2 This is a top view of the present invention;
[0017] Figure 3 This is a schematic front cross-sectional view of the insulation device of this utility model;
[0018] Figure 4 This is a top view of the insulating device of this utility model;
[0019] Figure 5 This utility model Figure 1 Enlarged diagram of point A in the diagram.
[0020] Explanation of the labels in the diagram:
[0021] 1. Turning frame mechanism; 1-1. Shielding cover; 1-2. Gear mechanism; 1-3. Socket head screw; 1-4. Product placement position; 2. Insulation mechanism; 2-1. Base plate; 2-2. Side plate; 2-3. Top plate; 2-4. Nut; 2-5. Washer; 2-6. Ceramic pad; 2-7. Ceramic seat; 2-8. Connecting post; 2-9. Through slot; 2-10. Screw hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] Example:
[0026] Please see Figure 1-5 An insulating device for a rotating frame of a vacuum coating machine includes a rotating frame mechanism 1. The rotating frame mechanism 1 includes a shielding cover 1-1 and a gear mechanism 1-2. The shielding cover 1-1 is sleeved on the outside of the gear mechanism 1-2. A plurality of insulating mechanisms 2 are arranged between the gear mechanism 1-2 and the shielding cover 1-1. The insulating mechanism 2 includes a connecting post 2-8 threaded onto the gear mechanism 1-2 and a through groove 2-9 formed on the shielding cover 1-1. A ceramic seat 2-7 is sleeved on the outside of the connecting post 2-8. The top of the ceramic seat 2-7... A through slot 2-9 extends to the top of the shield 1-1 and is fitted with a ceramic pad 2-6. A gasket 2-5 is fitted on the outside of the connecting post 2-8 and on top of the ceramic pad 2-6. A nut 2-4 is threaded onto the top of the connecting post 2-8. A side plate 2-2 is fitted on the top of the shield 1-1 and on the outside of the ceramic pad 2-6. A base plate 2-1 is fixedly connected to the bottom of the side plate 2-2. The base plate 2-1 is installed on the top surface of the shield 1-1. A top plate 2-3 is fixedly connected to the top of the side plate 2-2.
[0027] For details, please refer to Figure 5 The top surface of the shield 1-1 is provided with screw holes 2-10, and the bottom plate 2-1 is fitted with hexagonal head screws 1-3, the bottom end of which is threaded into the inner cavity of the screw hole 2-10.
[0028] In this embodiment, the base plate 2-1 is installed and fixed on the shielding cover 1-1 by the cooperation of the screw hole 2-10 and the internal hexagonal head screw 1-3.
[0029] For details, please refer to Figure 2 The top surface of the shielding cover 1-1 is provided with multiple product placement positions 1-4.
[0030] For details, please refer to Figure 1 and Figure 3 External threaded grooves are provided on the outer sides of the top and bottom ends of the connecting column 2-8.
[0031] In this embodiment, the bottom end of the connecting column 2-8 can be installed on the gear mechanism 1-2. At the same time, through the reasonable design of the thread length at the upper end of the connecting column 2-8, a certain gap is ensured between the nut 2-4 and the washer 2-5 and the ceramic pad 2-6 after the nut 2-4 is fixed, so as to avoid the ceramic pad 2-6 being damaged due to the nut 2-4 being fixed too tightly, and at the same time, to prevent the ceramic pad 2-6 from being damaged due to high temperature expansion.
[0032] For details, please refer to Figure 3 The bottom surface of nut 2-4 and the top surface of washer 2-5 do not contact each other.
[0033] In this embodiment, to prevent the ceramic pads 2-6 from being damaged due to overtightening of the nuts 2-4, and to prevent the ceramic pads 2-6 from being damaged due to high temperature expansion, when the insulation mechanism 2 and the rotating frame mechanism 1 are used together, there is a fixed space between the relevant components.
[0034] For details, please refer to Figure 1 and Figure 3 The ceramic base 2-7 is stepped, and the inner side of the shield 1-1 fits into the top stepped surface of the ceramic base 2-7.
[0035] In this embodiment, the ceramic base 2-7 is designed to support the shielding cover 1-1.
[0036] Working principle: In use, firstly, multiple connecting posts 2-8 are installed on the gear mechanism 1-2, and ceramic seats 2-7 are fitted onto the outside of the multiple connecting posts 2-8. Then, the shielding cover 1-1 is placed on the ceramic seat 2-7, so that the ceramic seat 2-7 passes through the through groove 2-9 on the shielding cover 1-1, and the shielding cover 1-1 is fitted onto the outside of the gear mechanism 1-2. Then, the ceramic seat 2-7 and the washer 2-5 are fitted onto the outside of the top of the connecting post 2-8, and the top of the connecting post 2-8 is threaded. Install nuts 2-4, and finally cover the ceramic pad 2-6 and other structures with the housing formed by connecting the base plate 2-1, side plate 2-2 and top plate 2-3. Fix the housing to the shielding cover 1-1 by using the cooperation of the hexagonal head screws 1-3 and screw holes 2-10. After ensuring that the ceramic pad 2-6 and ceramic seat 2-7 are not coated with film by the base plate 2-1, side plate 2-2 and top plate 2-3, and ensuring stable and reliable insulation, place the product on the product placement position 1-4 to complete the coating.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A rotary frame insulation device of a vacuum coating machine, comprising a rotary frame mechanism (1), characterized in that: The rotating mechanism (1) comprises a shielding cover (1-1) and a gear mechanism (1-2), the shielding cover (1-1) is sleeved outside the gear mechanism (1-2), a plurality of insulation mechanisms (2) are arranged between the gear mechanism (1-2) and the shielding cover (1-1), the insulation mechanism (2) comprises a connecting column (2-8) screwed on the gear mechanism (1-2) and a through slot (2-9) opened on the shielding cover (1-1), the outside of the connecting column (2-8) is sleeved with a ceramic seat (2-7), the top end of the ceramic seat (2-7) extends to the top of the shielding cover (1-1) through the through slot (2-9) and is sleeved with a ceramic pad (2-6), the outside of the connecting column (2-8) and the top of the ceramic pad (2-6) are sleeved with a gasket (2-5), the top end of the connecting column (2-8) is screwed with a nut (2-4), the top of the shielding cover (1-1) and the outside of the ceramic pad (2-6) are sleeved with a side plate (2-2), the bottom of the side plate (2-2) is fixedly connected with a bottom plate (2-1), the bottom plate (2-1) is installed on the top surface of the shielding cover (1-1), the top of the side plate (2-2) is fixedly connected with a top plate (2-3).
2. The rotary insulator of claim 1, wherein: The top surface of the shielding cover (1-1) is provided with a screw hole (2-10), the bottom end of the inner hexagonal cylindrical head screw (1-3) is screwed into the inner cavity of the screw hole (2-10).
3. The rotary insulator of claim 1, wherein: the rotary insulator is a rotary insulator of a vacuum coating machine. The top surface of the shielding cover (1-1) is provided with a plurality of product placing positions (1-4).
4. The rotary insulator of claim 1, wherein: the rotary insulator is a rotary insulator of a vacuum coating machine. The outside of the top end and the bottom end of the connecting column (2-8) is provided with an external thread groove.
5. The rotating frame insulation device for a vacuum coating machine according to claim 1, characterized in that: The bottom surface of the nut (2-4) and the top surface of the gasket (2-5) are not in contact.
6. The rotary shield insulation device of claim 1, wherein: The ceramic seat (2-7) is stepped, and the inner side surface of the shielding cover (1-1) and the top step surface of the ceramic seat (2-7) are fitted.