A coating head

Abstract

The utility model discloses a coating head including bottle mouth connecting portion, diffusion part and thickness control part, bottle mouth connecting portion is used for same bottle mouth connection, diffusion part is flat conical passage, one end same bottle mouth connecting portion intercommunication, one side is provided with strip -shaped opening, thickness control part includes scrape flat, thickness control boss, scrape flat setting in opening one side, thickness control boss sets up scrape flat near opening one side. The coating head structure simple without complex drive mechanism is proposed in the utility model, through the flow guide belt design in diffusion part, effectively improved the uniformity of paste or liquid distribution, can accurately control coating thickness through scrape flat and thickness control boss, can directly connect standard container bottle mouth when using, and the operation is simple, especially suitable for small -scale operation, on -the -spot construction or maintenance etc.

Description

Technical Field

[0001] This utility model relates to the field of paste or liquid coating technology, specifically a coating head. Background Technology

[0002] In production operations, it is often necessary to apply cleaning pastes, adhesives, etc., with a requirement for uniform and controllable coating thickness. Currently, the common coating method involves pressing the paste or liquid onto the target surface and then manually smoothing it with a scraper. This process is cumbersome, inefficient, and the coating thickness depends on the operator's experience, making it difficult to guarantee consistency. While some automated coating equipment exists, it is costly, lacks flexibility, and is unsuitable for small-batch production. Summary of the Invention The purpose of this invention is to provide a coating head to solve the problems existing in the prior art.

[0003] To achieve the above objectives, the present invention provides a coating head, including a bottle mouth connecting part, a diffusion part, and a thickness control part. The bottle mouth connecting part is used to connect with a bottle mouth. The diffusion part is a flat conical channel, with one end connected to the bottle mouth connecting part and an elongated opening on the other side. The thickness control part includes a scraper plate and a thickness control protrusion. The scraper plate is located on one side of the opening, and the thickness control protrusion is located on the side of the scraper plate near the opening.

[0004] Furthermore, the scraper plate is arranged at an angle to the center plane of the opening.

[0005] Furthermore, the thickness control bump is arranged in a streamlined shape, with a wider width at the end facing the opening and gradually narrowing towards the rear.

[0006] Furthermore, the inner wall of the bottle mouth connection part is provided with threads to screw into the bottle mouth.

[0007] Furthermore, the guide strips on both sides are arranged at an angle and symmetrically.

[0008] Furthermore, the opening of the bottle neck connection part is provided with an inclined surface.

[0009] Furthermore, the diffusion portion gradually expands in one direction and gradually narrows in the other direction.

[0010] The coating head proposed in this utility model has a simple structure and does not require a complex driving mechanism. Through the guide band design in the diffusion section, it effectively improves the uniformity of the distribution of paste or liquid. The coating thickness can be precisely controlled by the scraper plate and thickness control protrusion. It can be directly connected to the mouth of a standard container during use. It is easy to operate and is particularly suitable for small-scale operations, on-site construction or maintenance and other scenarios. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the overall design of this utility model.

[0012] Figure 2 This is a partially enlarged cross-sectional view of the present invention.

[0013] Figure 3 This is a schematic cross-sectional view of the present invention. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] As attached Figure 1-3 As shown, the coating head involved in this utility model mainly includes a bottle mouth connection part 100, a diffusion part 200, and a thickness control part 300.

[0016] The bottle neck connector 100 is used for connection to the bottle neck, preferably using a threaded connection method, with threads on its inner wall for screwing onto the bottle neck. Alternatively, a flexible snap-fit ​​structure can be used to achieve quick connection and sealing with the bottle neck. The bottle contains the paste or liquid to be applied.

[0017] The diffuser 200 is a flat conical channel that gradually widens in one direction and narrows in the other, with the two directions perpendicular to each other. The narrower end in the widening direction is connected to the bottle mouth connection 100, and the other side is provided with an elongated opening 210. The cylindrical paste or liquid flowing out of the bottle mouth forms an elongated narrow strip under the action of the diffuser.

[0018] Several guide strips 220 are provided inside the diffuser 200. The guide strips on both sides are arranged obliquely and symmetrically. The guide strips 220 can smoothly guide the flow direction of the paste or liquid to the width direction of the entire opening 210, ensuring that the paste or liquid flows out evenly, and can effectively prevent the deformation of the diffuser 200.

[0019] The width of the opening 210 of the diffuser 200 is designed according to the bottle opening, paste or liquid condition (viscosity), and usage, for example, it is 5 times the diameter of the bottle opening to achieve wide-width coating.

[0020] The thickness control unit 300 includes a scraper plate 310 and a thickness control protrusion 320. The scraper plate 310 is disposed on one side of the opening 210 and is inclined to the center plane m of the opening 210. The inclination angle is designed according to the condition (viscosity) of the paste or liquid and the usage.

[0021] The thickness control protrusion 320 is located on the side of the scraper plate 310 near the opening 210. It is arranged in a streamlined shape, with a wider width at the end facing the opening 210 and gradually narrowing towards the rear, forming a streamlined profile. This design can effectively reduce the resistance to the flow of paste or liquid and prevent scratches from appearing on the paste or liquid.

[0022] By selecting thickness control bumps 320 of different thicknesses, the final coating thickness can be set more precisely.

[0023] In use, the user screws the bottle containing the paste or liquid to be applied into the bottle neck connector 100, squeezes the bottle body, and the glue flows sequentially through the bottle neck connector 100, the diffuser 200 (where it is homogenized by the guide band 220), and finally flows out through the opening 210. The thickness of the applied paste or liquid is controlled by the thickness control protrusion 320, and the flowing paste or liquid can be smoothed by the scraper plate 310.

[0024] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A coating head, characterized in that, It includes a bottle mouth connecting part, a diffusion part, and a thickness control part. The bottle mouth connecting part is used to connect with the bottle mouth. The diffusion part is a flat conical channel with one end connected to the bottle mouth connecting part and an elongated opening on the other side. The thickness control part includes a scraper plate and a thickness control protrusion. The scraper plate is located on one side of the opening, and the thickness control protrusion is located on the side of the scraper plate near the opening.

2. The coating head according to claim 1, characterized in that, The scraper plate is arranged at an angle to the center plane of the opening.

3. The coating head according to claim 1, characterized in that, The thickness control bump is arranged in a streamlined shape, with a wider width at the end facing the opening and gradually narrowing towards the rear.

4. The coating head according to claim 1, characterized in that, The inner wall of the bottle mouth connection part is threaded and screwed into the bottle mouth.

5. A coating head according to claim 1, characterized in that, The diffuser has several guide strips inside, with the guide strips on both sides arranged at an angle and symmetrically.

6. The coating head according to claim 1, characterized in that, The opening of the bottle neck connection part is provided with an inclined surface.

7. A coating head according to claim 1, characterized in that, The diffuser expands in one direction and narrows in the other.

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