Linear evaporation boat feeding device and linear evaporation boat

Abstract

The utility model discloses a linear evaporation boat feeding device. A linear evaporation boat comprises a strip-shaped trough. The feeding device comprises a base, a hopper, a thickness adjusting assembly and a discharging adjusting assembly. The base is mounted on the trough in a sliding manner; the hopper and the thickness adjusting assembly are arranged on the base; wherein a discharge port is formed in the bottom of the hopper, the opening size of the discharge port is adjusted through the discharge adjusting assembly, and the discharge port is communicated with the trough; wherein the thickness adjusting assembly comprises a scraping block arranged at the top of the trough, and the scraping block is connected with the base through a lifting adjusting piece. The coating device is simple in structure, and the coating uniformity of the linear evaporation boat can be better ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation coating devices, and particularly relates to a linear evaporation boat feeding device and a linear evaporation boat. Background Technique

[0002] Vacuum evaporation coating is a method in which, under vacuum conditions, an evaporator is used to heat an evaporation material so that the heated material sublimes to obtain an evaporation particle stream, and the evaporation particle stream shoots towards a substrate and deposits on the substrate to form a solid thin film. In the prior art, in order to deposit a uniform thin film on a large-area substrate, a long-strip linear evaporation boat is used in the evaporation coating device instead of multiple dot matrix evaporation boats to cover the entire substrate, thereby overcoming the problem that the diffusion ports between the dot matrix evaporation boats cannot be closely connected, and the evaporation material diffuses pointwise from the diffusion ports of the evaporation boat to the surroundings, affecting the coating effect. However, in practical applications, compared with the method of quantitatively adding evaporation coating materials to the dot matrix evaporation boat, the linear evaporation boat has the problem of uneven feeding. Uneven feeding cannot ensure that the thickness of the evaporation coating materials in the whole line is the same. Different material thicknesses are likely to affect the heating of the materials. The uneven heating of the evaporation coating materials results in too high or too low local evaporation rates, which in turn leads to uneven coating and affects the performance of the final product. Therefore, the utility model aims to develop a linear evaporation boat feeding device and a linear evaporation boat to better meet the actual needs. Content of the Utility Model

[0003] The technical problem solved by the utility model is to provide a linear evaporation boat feeding device and a linear evaporation boat to solve the problem of uneven feeding of the evaporation boat in the prior art, so as to obtain a more uniform coating and improve the coating effect.

[0004] The technical problem solved by the utility model is realized by adopting the following technical solutions:

[0005] A linear evaporation boat feeding device, the linear evaporation boat includes a strip-shaped material tank; the feeding device includes a base, a hopper, a thickness adjusting component and a discharge adjusting component;

[0006] The base is slidably installed on the material tank;

[0007] The hopper and the thickness adjusting component are arranged on the base;

[0008] Wherein, a discharge port is arranged at the bottom of the hopper, the opening size of the discharge port is adjusted by the discharge adjusting component, and the discharge port is communicated with the material tank;

[0009] The thickness adjusting component includes a scraping block arranged at the top of the material tank, and the scraping block is connected with the base through a lifting adjusting part.

[0010] In the present utility model, the base includes a support plate disposed on the top of the material trough, and side plates are provided on both sides of the support plate, and the side plates are attached to the outer wall of the material trough.

[0011] In the present utility model, the discharge adjusting assembly includes an adjusting plate and an adjusting member. The adjusting plate is horizontally arranged on the base and corresponds to the discharge port, and the adjusting member is used to adjust the installation position of the adjusting plate and the base, thereby adjusting the opening size of the discharge port.

[0012] In the present utility model, the discharge port of the hopper is arranged at the front end of the base along the sliding direction, and the scraping block is arranged at the rear end of the base along the sliding direction.

[0013] In the present utility model, the lifting and adjusting member includes a lifting rod and a mounting plate arranged on the base, and the mounting plate and the scraping block are connected by the lifting rod.

[0014] In the present utility model, the lifting rod is an adjusting screw.

[0015] In the present utility model, a positioning pin is arranged between the mounting plate and the scraping block, and a spring is wound around the positioning pin.

[0016] In the present utility model, the width of the scraping block is adapted to the width of the material trough, and the bottom of the scraping block is kept horizontal and flat; the front end bottom of the scraping block along the sliding direction of the base extends into a shovel-shaped structure to form an inclined surface shape, and the rear end bottom of the scraping block along the sliding direction of the base is arranged into an arc-shaped structure.

[0017] In the present utility model, a linear evaporation boat includes the feeding device as described above.

[0018] Advantageous effects: The feeding device of the linear evaporation boat described in the present utility model has a simple structure and convenient operation, can better control the thickness of the material in the material trough, and make the material distribution uniform, avoiding the phenomena of uneven heating of the evaporation material, too high or too low local evaporation rate, and can better achieve uniform coating, and has a good application prospect.

[0019] The linear evaporation boat described in the present utility model can avoid the phenomenon that the evaporation material on the traditional dot matrix evaporation boat diffuses pointwise from the diffusion port of the evaporation boat to the surroundings by using a strip-shaped material trough, and combined with the improvement of the feeding device, more uniform coating can be achieved. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0021] Figure 2 It is a schematic structural diagram of the scraping block in a preferred embodiment of the present utility model.

[0022] Figure 3 It is a schematic connection diagram of the scraping block and the mounting plate in a preferred embodiment of the present utility model.

[0023] Figure 4 This is a schematic installation structure diagram of the discharge adjusting assembly in a preferred embodiment of the present utility model.

[0024] Wherein: 1. Material trough; 2. Hopper; 21. Discharge port; 3. Base; 4. Discharge adjusting assembly; 41. Adjusting plate; 42. Adjusting member; 5. Thickness adjusting assembly; 51. Scraping block; 52. Mounting plate; 53. Positioning pin; 54. Lifting rod. Detailed implementation manners

[0025] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific drawings.

[0026] See Figures 1 to 4 as shown

[0027] For the linear evaporation boat feeding device of the present utility model, the linear evaporation boat includes a strip-shaped material trough 1. The use of the strip-shaped material trough 1 can avoid the phenomenon that the evaporation material on the traditional dot matrix evaporation boat diffuses pointwise from the diffusion port of the evaporation boat to the surrounding.

[0028] As Figure 1 shown, the feeding device includes a base 3, a hopper 2, a thickness adjusting assembly 5 and a discharge adjusting assembly 4.

[0029] The base 3 is slidably installed on the material trough 1. The base 3 includes a support plate arranged on the top of the material trough 1. Side plates are provided on both sides of the support plate, and the side plates are arranged in contact with the outer wall of the material trough 1. Under the push of an external force, the base 3 can slide stably along the outer wall of the material trough 1.

[0030] The hopper 2 is installed on the base 3. As Figure 2 and Figure 4 shown, the hopper 2 is preferably a conical hopper 2 with a constricted bottom. The top of the hopper 2 is provided with a feed port, the bottom of the hopper 2 is provided with a discharge port 21, the discharge port 21 is communicated with the material trough 1, and the opening size of the discharge port is adjusted by the discharge adjusting assembly 4, thereby adjusting the flow rate of the material entering the material trough 1. In a preferred embodiment, the discharge adjusting assembly 4 includes an adjusting plate 41 and an adjusting member 42. The adjusting plate 41 is horizontally arranged on the support plate of the base 3 and matches the size and position of the discharge port. An opening corresponding to the discharge port 21 is provided on the support plate, so as to ensure that the material falls into the material trough 1. The adjusting member 42 is used to adjust the installation position of the adjusting plate 41 and the base 3, and thus adjust the opening size of the discharge port 21. In a further preferred specific embodiment, as Figure 4As shown, the adjusting plate 41 is an L-shaped adjusting plate 41, which is convenient for pulling. The adjusting member 42 includes a fastening member and a connecting plate fixed to one side of the hopper 2. The fastening member passes through the connecting plate and is fixedly connected to the mounting hole on the adjusting plate 41. A plurality of mounting holes are arranged at intervals along the pulling direction on the adjusting plate 41, so that the adjusting plate 41 can be well fixed after being pulled to different positions, and thus the opening size of the discharge port can be maintained stable after adjustment.

[0031] The thickness adjusting assembly 5 includes a scraping block 51 arranged on the top of the material tank 1. The scraping block 51 is connected to the base 3 through a lifting adjusting member 42. In a preferred embodiment, as Figure 3 shown, the discharge port of the hopper 2 is arranged at the front end of the base 3 along the sliding direction, and the scraping block 51 is arranged at the rear end of the base 3 along the sliding direction. Thus, during the sliding of the base 3, the material is discharged from the front end of the hopper 2, and the scraping block 51 scrapes off the excess thickness of the material in the material tank 1 at the rear end and levels the surface of the material in the material tank 1, further ensuring the uniformity of the coating.

[0032] In some preferred embodiments, the lifting adjusting member 42 includes a lifting rod 54 and a mounting plate 52 arranged on the base 3. The mounting plate 52 and the scraping block 51 are connected through the lifting rod 54. Further improved, the lifting rod 54 is preferably an adjusting screw, and a positioning pin 53 is arranged between the mounting plate 52 and the scraping block 51. A spring is wound around the positioning pin 53. Thus, in actual operation, the block can be driven to rise and fall by rotating the adjusting screw, so as to control the depth of scraping, and then the thickness of the material in the material tank 1 can be realized, ensuring the uniformity of the coating, and can be flexibly adjusted according to needs during actual operation.

[0033] In some other preferred embodiments, as Figure 3 shown, the width of the scraping block 51 is adapted to the width of the material tank 1, and the top of the scraping block 51 is flush with the top of the material tank 1, or at least can maintain a certain height, so as to prevent material leakage during scraping. The bottom of the scraping block 51 is kept horizontal and flat; the scraping block 51 forms an inclined surface structure extending from the bottom of the front end along the sliding direction of the base 3, and the bottom of the rear end of the scraping block 51 along the sliding direction of the base 3 is arranged as an arc-shaped structure, so as to realize rapid scraping and keep the surface of the material flat after scraping.

[0034] The linear evaporation boat involved in the present invention includes the feeding device as described above.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0037] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements.

[0038] The above content is a further detailed description of the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made.

Claims

1. A linear evaporation boat feeding device, the linear evaporation boat comprising a strip-shaped feeding trough; characterized in that: The feeding device comprises a base, a hopper, a thickness adjustment component and a discharge adjustment component; The base is slidably mounted on the material trough; The hopper and thickness adjustment assembly are arranged on a base; A discharge port is arranged at the bottom of the hopper, the opening size of the discharge port is adjusted by the discharge adjustment component, and the discharge port is connected to the material trough; The thickness adjustment component includes a scraper block arranged on the top of the material trough, and the scraper block is connected to the base through a lifting adjustment member.

2. The linear evaporation boat feeding device according to claim 1, characterized in that: The base comprises a support plate arranged on the top of the material trough, and side plates are arranged on both sides of the support plate, and the side plates are arranged in contact with the outer wall of the material trough.

3. The linear evaporation boat feeding device according to claim 1, characterized in that: The discharge adjustment assembly includes an adjustment plate and an adjustment member. The adjustment plate is horizontally arranged on the base and corresponds to the discharge port. The adjustment member is used to adjust the installation position of the adjustment plate and the base, thereby adjusting the opening size of the discharge port.

4. The linear evaporation boat feeding device according to claim 1, characterized in that: The discharge port of the hopper is arranged at the front end of the base along the sliding direction, and the scraper block is arranged at the rear end of the base along the sliding direction.

5. The linear evaporation boat feeding device according to claim 1, characterized in that: The lifting and adjusting member comprises a lifting rod and a mounting plate arranged on a base, and the mounting plate and the scraping block are connected through the lifting rod.

6. The linear evaporation boat feeding device according to claim 5, characterized in that: The lifting rod is an adjusting screw rod.

7. The linear evaporation boat feeding device according to claim 6, characterized in that: A positioning pin is arranged between the mounting plate and the scraper block, and a spring is wound around the positioning pin.

8. The linear evaporation boat feeding device according to claim 1, characterized in that: The width of the scraper block is adapted to the width of the material trough, and the bottom of the scraper block remains horizontal and flat; the shovel-shaped structure extending from the front end bottom of the scraper block along the sliding direction of the base forms an inclined surface, and the rear end bottom of the scraper block along the sliding direction of the base is set to a curved surface structure.

9. A linear evaporation boat, characterized in that: It comprises a feeding device as described in any one of claims 1 to 8.

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