Side face insertion type evaporation boat and vacuum coating machine

Abstract

The utility model discloses a side plug-in type evaporation boat and vacuum coating machine, the evaporation boat comprises a box body, a liquid dropping cavity and an evaporation cavity located below the liquid dropping cavity are arranged in the box body, one side face of the liquid dropping cavity is provided with a box inlet hole used for horizontal insertion of a liquid dropping nozzle, and the liquid dropping cavity is communicated with the evaporation cavity through a drop-in opening. The liquid plating material dripping into the liquid dripping cavity falls into the evaporation cavity from the falling opening, and an evaporation opening communicated with the evaporation cavity is formed in the box body. The evaporation boat can directly collect all liquid plating materials output by a liquid dropping nozzle of the liquid dropping device in a vacuum environment. According to the vacuum coating machine adopting the side insertion type evaporation boat, a valve does not need to be arranged, the complexity is reduced, in the process of adding the liquid coating material, the operations of breaking vacuum and re-vacuumizing the liquid adding chamber do not need to be carried out, and the coating efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating technology, specifically to a side-insertion evaporation boat and a vacuum coating machine. Background Technology

[0002] Currently, there is a growing trend of adding an AF (anti-fingerprint) coating (also known as AS, anti-fouling) layer to decorative films and even optical films. AF coating material is a perfluoroether polymer, an organic compound with extremely strong hydrophobicity. It is a low-temperature evaporation material, evaporating at 140-150 degrees Celsius. It can be deposited on substrates such as glass, plastic, sapphire, and microcrystalline zirconia ceramics. The film layer has strong hydrophobicity, making fingerprints and contaminants on the surface easy to wipe away. AF film layers are widely used on the surfaces of glass, metal, plastic, and ceramic panels and parts in digital products, watches, and bathroom fixtures, as well as on decorative and functional films on these surfaces. Adding AF or AS coatings can improve surface hardness, smoothness, wear resistance, chemical resistance, and ease of cleaning. An increasing number of decorative film products are adopting AF coating.

[0003] AF coating requires a vacuum coating machine. One type of vacuum coating machine uses AF liquid coating material. During coating, the liquid coating material is dripped onto an evaporation boat using a dripping device (to avoid collision, the dripping nozzle of the dripping device must be a certain distance from the evaporation boat). Then, the evaporation boat, along with the liquid coating material, is sent into the coating chamber. The evaporation boat is then energized and heated, causing the liquid coating material to evaporate. During the dripping of the liquid coating material onto the evaporation boat, if a vacuum is present, the pressure difference will cause the liquid coating material output from the dripping nozzle 15.1 of the dripping device 15 to be sprayed out in a dispersed state, as shown in the image. Figure 8 As shown, this will cause some liquid plating material to fall outside the evaporation boat, resulting in less liquid plating material added to the evaporation boat, affecting the coating quality, and causing waste of liquid plating material.

[0004] Therefore, in order to ensure that the liquid plating material can be accurately dripped onto the evaporation boat, it is necessary to break the vacuum in the space where it is located, so that it is in an atmospheric environment. For example, the coating mechanism and vacuum coating machine disclosed in Chinese Patent Application No. 202320061982X, which can be isolated and connected to the main coating chamber, are equipped with a valve for isolation. The evaporation boat is fixed at the front end of two parallel electrode rods, and the tail end of the electrode rods is connected to the telescopic mechanism through an insulating seat. Whenever liquid plating material needs to be added to the evaporation boat, the telescopic mechanism retracts the evaporation boat to below the drip nozzle of the dripping device, then the valve is closed to isolate the space where the evaporation boat is located from the coating chamber, and the vacuum in the space where the evaporation boat is located is broken. Then the liquid plating material is dripped onto the evaporation boat through the dripping device. After the liquid plating material is added, the space where the evaporation boat is located needs to be evacuated again. Then the valve is opened, and the evaporation boat is sent into the coating chamber through the telescopic mechanism, after which the coating operation can continue.

[0005] As can be seen, in the above coating process, each time liquid coating material is added, the valve needs to be closed, the vacuum broken, and then the vacuum re-extracted and the valve opened. The operation is relatively complicated and time-consuming, which affects the coating efficiency. Utility Model Content

[0006] The first objective of this invention is to provide a side-insertion evaporation boat that can directly collect all the liquid plating material output from the drip nozzle of the dripping device in a vacuum environment.

[0007] The second objective of this invention is to provide a vacuum coating machine that employs the aforementioned side-insertion evaporation boat, which reduces complexity and increases coating efficiency.

[0008] The first objective of this utility model is achieved through the following technical solution:

[0009] A side-insertion evaporation boat is characterized by: including a box body, a dripping chamber and an evaporation chamber located below the dripping chamber, an inlet hole for horizontal insertion of a dripping nozzle on one side of the dripping chamber, the dripping chamber and the evaporation chamber being connected by a drop inlet, the liquid plating material dripping into the dripping chamber falling into the evaporation chamber from the drop inlet, and an evaporation port communicating with the evaporation chamber on the box body.

[0010] A further technical solution of this utility model is as follows: a blocking plate is provided in the middle of the box body, which divides the internal space of the box body into a dripping chamber located above and an evaporation chamber located below. The blocking plate is inclined, and there is a gap between the side of the blocking plate with a lower horizontal height and the inner surface of the box body, forming a drop inlet at the gap. The side of the blocking plate with a higher horizontal height is connected to the box body.

[0011] A further technical solution of this utility model is: the evaporation port is located on the side of the box body near the lower end, and the evaporation port and the side with the higher horizontal height of the baffle plate are on the same side.

[0012] A further technical solution of this utility model is as follows: the box body is composed of an upper cover and a lower seat. The upper part of the lower seat is an opening. The evaporation port is located on the side of the lower seat and close to the lower end of the lower seat. The baffle plate is located on the lower side of the upper cover. The upper cover covers the lower seat.

[0013] A further technical solution of this utility model is that the blocking plate and the top cover are integrated.

[0014] A further technical solution of this utility model is: the bottom two sides of the box body are respectively provided with connecting ears for fixed connection with the electrode rod.

[0015] The second objective of this utility model is achieved through the following technical solution:

[0016] A vacuum coating machine is characterized by comprising a coating chamber, a liquid filling chamber, a telescopic mechanism, a dripping device, two parallel electrode rods, and an evaporation boat. One end of the liquid filling chamber is directly connected to the coating chamber. The telescopic end of the telescopic mechanism extends into the liquid filling chamber, and two parallel electrode rods are fixedly connected to the telescopic end of the telescopic mechanism. The evaporation boat is fixedly straddling between the two electrode rods. The dripping device is located above the liquid filling chamber, and the dripping nozzle of the dripping device is bent into a horizontal position, with the dripping nozzle facing the inlet hole of the evaporation boat. When the evaporation boat retracts into the liquid filling chamber, the dripping nozzle can be inserted into the dripping chamber of the evaporation boat through the inlet hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The evaporation boat of this utility model is equipped with a box body, and a dripping chamber and an evaporation chamber are set in the box body. When in use, the dripping nozzle of the dripping device is inserted into the dripping chamber through the box inlet to drip liquid. Even in a vacuum state, the liquid plating material output by the dripping nozzle is sprayed out in a dispersed state in the dripping chamber and can be basically collected. The liquid plating material collected in the dripping chamber will flow from the drop inlet to the evaporation chamber, where it will undergo final evaporation.

[0019] 2. The vacuum coating machine of this invention uses the aforementioned evaporation boat, which eliminates the need for valves and reduces complexity. During the addition of liquid coating material, this vacuum coating machine eliminates the need for breaking and re-vacuuming the liquid addition chamber; the liquid coating material can be directly added to the evaporation chamber of the evaporation boat under vacuum, resulting in higher efficiency. Attached Figure Description

[0020] Figure 1 This is one of the perspective schematic diagrams of the evaporation boat according to an embodiment of the present utility model;

[0021] Figure 2 This is the second perspective view of the evaporation boat according to an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the evaporation boat according to an embodiment of the present invention;

[0023] Figure 4 This is a top view schematic diagram of the evaporation boat according to an embodiment of the present utility model;

[0024] Figure 5 This is one of the perspective views of the upper cover and lower seat of the evaporation boat in this embodiment of the present invention when they are separated;

[0025] Figure 6 This is the second perspective view of the evaporation boat in this embodiment of the present invention when the upper cover and lower seat are separated.

[0026] Figure 7 This is one of the structural schematic diagrams of the vacuum coating machine according to an embodiment of the present utility model. The diagram shows the process of the evaporation boat returning to the liquid addition chamber, and the state when the drip nozzle has not yet been inserted into the drip chamber.

[0027] Figure 8 This is the second structural schematic diagram of the vacuum coating machine according to an embodiment of the present utility model. The diagram shows the state when the evaporation boat is retracted into the liquid addition chamber and the drip nozzle is inserted into the dripping chamber.

[0028] Figure 9 This is a schematic diagram of adding liquid coating material to an existing vacuum coating machine under vacuum conditions.

[0029] Meaning of the labels in the attached diagram:

[0030] 1-Box body; 1.1-Top cover; 1.2-Lower seat; 2-Box inlet hole; 3-Connecting ear; 3.1-Connecting hole; 4-Evaporation port; 5-Drip chamber; 6-Evaporation chamber; 7-Drop inlet; 8-Blocking plate; 9-Opening groove; 10-Coating chamber; 11-Liquid filling chamber; 12-Electrode rod; 13-Insulating seat; 14-Telescopic mechanism; 14.1-Telescopic end of telescopic mechanism; 15-Drip device; 15.1-Drip nozzle; 16-Liquid plating material sprayed in a dispersed state; 17-Evaporation boat in the prior art; 18-Side notch. Detailed Implementation

[0031] The present invention will be further described below with reference to embodiments.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Example:

[0036] like Figures 1 to 6 The image shown is of a side-insertion evaporation boat according to this embodiment, which includes a box body 1. The box body 1 consists of an upper cover 1.1 and a lower seat 1.2. The upper cover 1.1 covers the lower seat 1.2, forming a relatively enclosed space inside.

[0037] The lower seat 1.2 has an opening on the top. One side of the lower seat 1.2 has an opening groove 9 for avoiding the blocking plate 8. The lower side of the same side has an evaporation port 4. The other side of the lower seat 1.2 has a side notch 18. The bottom of the lower seat 1.2 has connecting ears 3 on both sides for fixing and connecting to the electrode rod. The connecting ears 3 have connecting holes 3.1.

[0038] One side of the top cover 1.1 has an inlet hole 2, which corresponds to the position of the side notch 18. A portion of the lower edge of the other side of the top cover 1.1 is bent inward to form an inclined baffle 8, and the position where the baffle 8 is formed creates a notch corresponding to the position of the evaporation port 4. (For example...) Figure 3 As shown, there is a gap between the side of the blocking plate 8 with a lower horizontal height and the inner surface of the upper cover 1.1, forming a drop inlet 7 at the gap. The side of the blocking plate 8 with a higher horizontal height is integrally connected to the upper cover 1.1. Connecting ears 3 are also provided on both sides of the bottom of the upper cover 1.1. The connecting ears 3 at the bottom of the upper cover 1.1 are aligned and overlapped with the connecting ears 3 at the bottom of the lower seat 1.2.

[0039] like Figure 3As shown, when the upper cover 1.1 is placed on the lower seat 1.2, the blocking plate 8 will be located in the middle of the box body 1. The internal space of the box body 1 is divided into the upper dripping chamber 5 and the lower evaporation chamber 6 by the blocking plate 8. The dripping chamber 5 and the evaporation chamber 7 are connected by the drop inlet 7. The evaporation port 4 is located on the side of the evaporation chamber 6 and is connected to the evaporation chamber 6. The evaporation port 4 and the side with the higher horizontal height of the blocking plate 8 are on the same side.

[0040] like Figure 7 and Figure 8 As shown, this embodiment also discloses a vacuum coating machine, which includes a coating chamber 10, a liquid adding chamber 11, a telescopic mechanism 14, a liquid dripping device 15, two parallel electrode rods 12, and the evaporation boat.

[0041] The liquid filling chamber 11 is elongated and horizontally positioned. One end of the liquid filling chamber 11 is directly connected to the coating chamber 10, meaning no valve is installed between the liquid filling chamber 11 and the coating chamber 10. The telescopic mechanism 14 is located at the other end of the liquid filling chamber 11. The telescopic end 14.1 of the telescopic mechanism extends into the liquid filling chamber 11. Two parallel electrode rods 12 are fixedly connected to the telescopic end 14.1 of the telescopic mechanism via an insulating seat 13. The evaporation boat is fixed across the ends of the two electrode rods 12 that are away from the telescopic mechanism 14. The connecting ears 3 on both sides of the bottom of the evaporation boat are fixedly connected to the ends of the electrode rods 12 by bolts. The bottom sides of the evaporation boat are connected to the two electrode rods 12, and each electrode is connected to the lead electrode via a lead wire.

[0042] The dripping device 15 is used to add liquid plating material into the evaporation boat. The dripping device 15 is positioned downward above the liquid filling chamber 11. The dripping nozzle 15.1 of the dripping device 15 is bent into a horizontal position. The dripping nozzle 15.1 is located on the moving path of the evaporation boat, facing the inlet hole 2 of the evaporation boat, and is at the same horizontal height as the inlet hole 2.

[0043] The operation process of the vacuum coating machine in this embodiment is as follows:

[0044] The product to be coated is vertically fixed inside the coating chamber 10, with the side of the product being the surface to be coated. During coating, both the coating chamber 10 and the liquid filling chamber 11 are in a vacuum state.

[0045] When it is necessary to add liquid plating material to the evaporation boat, such as Figure 7 and Figure 8As shown, the telescopic mechanism 14 retracts, driving the evaporation boat back to the liquid filling chamber 11. During this process, the drip nozzle 15.1 is inserted from the inlet hole 2 into the dripping chamber 5 of the evaporation boat. Then, without breaking the vacuum, the dripping device 15 directly outputs liquid plating material from its drip nozzle 15.1. Because it is in a vacuum state, the liquid plating material output from the drip nozzle 15.1 is sprayed out in a dispersed state. In the dripping chamber 5, the liquid plating material 16 sprayed out in a dispersed state can be basically collected by the dripping chamber 5. The liquid plating material collected by the dripping chamber 5 will flow from the inclined baffle plate 8 to the inlet 7, and finally fall into the evaporation chamber 6 from the inlet.

[0046] After the liquid plating material is added, the telescopic mechanism 14 extends to send the evaporation boat into the coating chamber 10. Then, the electrode rod 12 is energized, the evaporation boat heats up, and the liquid plating material in the evaporation chamber 6 is heated, causing the liquid plating material to evaporate. The evaporated liquid plating material is output from the evaporation port 4.

[0047] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A side-insertion evaporation boat, characterized in that: The device includes a housing, which contains a dripping chamber and an evaporation chamber located below the dripping chamber. One side of the dripping chamber has an inlet hole for horizontal insertion of a dripping nozzle. The dripping chamber and the evaporation chamber are connected by a drop inlet. Liquid plating material dripping into the dripping chamber will fall into the evaporation chamber through the drop inlet. The housing has an evaporation port that communicates with the evaporation chamber.

2. The side-insertion evaporation boat according to claim 1, characterized in that: The box body is provided with a baffle plate in the middle, which divides the internal space of the box body into the dripping chamber located above and the evaporation chamber located below. The baffle plate is inclined, and there is a gap between the side of the baffle plate with a lower horizontal height and the inner surface of the box body. The gap forms the drop inlet. The side of the baffle plate with a higher horizontal height is connected to the box body.

3. The side-insertion evaporation boat according to claim 2, characterized in that: The evaporation port is located on the side of the box body near the lower end, and the evaporation port is on the same side as the side of the baffle plate with a higher horizontal height.

4. The side-insertion evaporation boat according to claim 3, characterized in that: The box body consists of an upper cover and a lower base. The upper part of the lower base is open. The evaporation port is located on the side of the lower base and near the lower end of the lower base. The baffle is located on the lower side of the upper cover. The upper cover covers the lower base.

5. The side-insertion evaporation boat according to claim 4, characterized in that: The blocking plate is integral with the top cover.

6. The side-insertion evaporation boat according to claim 1, characterized in that: The bottom two sides of the box are respectively provided with connecting ears for fixing and connecting to the electrode rod.

7. A vacuum coating machine, characterized in that: The device includes a coating chamber, a liquid filling chamber, a telescopic mechanism, a dripping device, two parallel electrode rods, and an evaporation boat as described in any one of claims 1 to 6. One end of the liquid filling chamber is directly connected to the coating chamber. The telescopic end of the telescopic mechanism extends into the liquid filling chamber. Two parallel electrode rods are fixedly connected to the telescopic end of the telescopic mechanism. The evaporation boat is fixedly straddling between the two electrode rods. The dripping device is located above the liquid filling chamber. The dripping nozzle of the dripping device is bent into a horizontal position and is directly opposite the inlet hole of the evaporation boat. When the evaporation boat retracts into the liquid filling chamber, the dripping nozzle can be inserted into the dripping chamber of the evaporation boat through the inlet hole.

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