A color selector spray valve assembly

Abstract

The utility model discloses a kind of color sorter spray valve assemblies, it is related to the field of color sorter, including cover plate, with the detachable connection of cover plate air passage and the detachable connection of multiple valves of air passage, cover plate front end is equipped with multiple transverse arrangement's nozzle, when cover plate, air passage and multiple valves are installed, compressed air passes through valve, air passage and is sprayed by nozzle after, contact with the material of falling.The utility model can effectively avoid the interference of air pipe, maintain the stability of air flow pressure, further guarantee the rejection strength of air flow to material.Simultaneously it can also effectively avoid the phenomenon that nozzle air jet position and color particle misregistration caused by compressed gas delay to reach nozzle, improve the accuracy when nozzle operates.Moreover, it can avoid the phenomenon of air flow pressure transmission lag caused by the slight swelling deformation of flexible air pipe impacted by high-pressure airflow, reduce response time.

Description

Technical Field

[0001] This utility model relates to the field of color sorters, and in particular to a spray valve assembly for a color sorter. Background Technology

[0002] A color sorter is a device that automatically sorts materials based on differences in their optical properties. It is widely used in grains, plastics, ores, food, and other fields. Its core function is to quickly identify and separate discolored particles from materials. The structure of a color sorter needs to be combined with high-speed optical detection and precise execution. Its core components can be divided into a feeding system, a detection system, a control system, an execution system, and auxiliary structures.

[0003] In existing color sorters, valves and nozzles are mostly connected using a tubular connection structure (i.e., connected by separate components such as flexible tubing and quick-connect fittings). This tubular connection structure is widely used due to its simplicity, low cost, and ease of maintenance. However, in the actual operation of multi-nozzle systems, the length of the tubing means that compressed air takes time to travel from the valve opening to the nozzle, which can lead to pressure attenuation and affect rejection efficiency. For high-speed moving materials, airflow delay can occur, causing misalignment between the nozzle's spray position and the discolored particles, resulting in rejection failure. Furthermore, the flexible tubing undergoes slight expansion and deformation under high-pressure airflow, causing a lag in pressure transmission and further extending the response time. This results in the actual spraying time being later than the valve's action, affecting the nozzle's timely response. Utility Model Content

[0004] To address the aforementioned issues, this application provides a color sorter spray valve assembly.

[0005] To achieve the above objectives, this application provides the following technical solution: a color sorter spray valve assembly, including a cover plate, an air passage detachably connected to the cover plate, and multiple valves detachably connected to the air passage. The front end of the cover plate is provided with multiple horizontally arranged nozzles. When the cover plate, the air passage, and the multiple valves are installed together, compressed air passes through the valves and the air passage and is sprayed out through the nozzles to contact the falling material.

[0006] Furthermore, the upper surface of the air passage is provided with multiple horizontally arranged jet holes. When the cover plate is installed on the upper surface of the air passage, the air passage of the nozzle corresponds to the jet holes.

[0007] Furthermore, the lower end face of the gas passage is provided with multiple downward protruding docking parts, which are arranged along a transverse path, and the multiple valves are respectively installed on the lower end face of the multiple docking parts.

[0008] Furthermore, the lower end face of the docking part is provided with multiple docking holes, and the side of the valve that is in contact with the docking part is provided with multiple air outlet holes. The valve is also provided with an air pipe interface. When the valve is installed on the lower end face of the docking part, the docking holes correspond to the air outlet holes. Compressed air entering the valve through the air pipe interface can pass through the air outlet holes and docking holes into the air passage.

[0009] Furthermore, a pressure plate is installed on the air passage. The pressure plate consists of an ear plate that fits against the upper surface of the air passage, a guide plate that extends obliquely downward from the rear end of the ear plate, and a vertical plate that extends downward from the bottom end of the guide plate.

[0010] Furthermore, each pressure plate is provided with a positioning bracket below it. When the cover plate, air passage and multiple valves are installed together, the air passage and multiple valves are all located in front of the positioning bracket.

[0011] In summary, the technical effects and advantages of this utility model are as follows:

[0012] This invention effectively avoids interference from the air tube, maintains stable airflow pressure, and further ensures the airflow's ability to remove materials. It also effectively prevents misalignment between the nozzle's spray position and discolored particles caused by delayed arrival of compressed gas at the nozzle, improving the nozzle's operational accuracy. Furthermore, it avoids the lag in airflow pressure transmission caused by the slight expansion and deformation of the flexible air tube due to high-pressure airflow, thus reducing response time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the valve structure during disassembly.

[0016] Figure 3 This is a schematic diagram of the structure of the cover plate, air passage and valve of this utility model during disassembly.

[0017] Figure 4 This is a second-view structural diagram of the cover plate, air passage, and valve of this utility model during disassembly.

[0018] Figure 5 This is a schematic diagram of the valve structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the valve structure from a second perspective.

[0020] In the diagram: 1. Cover plate; 11. Nozzle; 2. Air passage; 21. Air jet hole; 22. Connecting part; 23. Connecting hole; 3. Valve; 31. Air outlet; 32. Air pipe interface; 4. Pressure plate; 5. Positioning bracket. Detailed Implementation

[0021] 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.

[0022] Example: Reference Figure 1 , Figure 2 The color sorter spray valve assembly shown includes a cover plate 1, an air passage 2 detachably connected to the cover plate 1, and multiple valves 3 detachably connected to the air passage 2. The front end of the cover plate 1 is provided with multiple horizontally arranged nozzles 11. When the cover plate 1, the air passage 2 and the multiple valves 3 are installed together, compressed air passes through the valves 3 and the air passage 2 and is sprayed out through the nozzles 11 to contact the falling material.

[0023] In this invention, valve 3 controls the flow of compressed air, while nozzle 11 precisely ejects high-pressure airflow to remove discolored particles. Nozzle 11 is connected to valve 3 via air passage 2, guiding the compressed air output from valve 3 into nozzle 11. Through the connection of valve 3, air passage 2, and cover plate 1, compared to traditional pipe-based connections, there is no need to connect valve 3 to air passage 2 via an air pipe, effectively avoiding interference from the air pipe, maintaining stable airflow pressure, and further ensuring the airflow's ability to remove materials.

[0024] Meanwhile, by connecting valve 3, air passage 2, and cover plate 1, the time required for compressed air to travel from valve 3 through the air pipe to nozzle 11 can be reduced. For high-speed moving materials, this effectively avoids the phenomenon of misalignment between the nozzle 11 and discolored particles caused by compressed gas delay, thus improving the accuracy of nozzle 11 operation. It also avoids the phenomenon of airflow pressure transmission lag caused by the slight expansion deformation of flexible air pipes due to high-pressure airflow impact, thus reducing response time.

[0025] Furthermore, the connection between valve 3 and air passage 2 can effectively prevent dust or foreign objects from adhering to the surface of the air pipe and the problem of dust accumulation in the gaps being difficult to clean, so as to facilitate the cleaning operation of the color sorter.

[0026] Specifically, such as Figure 3 , Figure 4 As shown, the upper surface of the air passage 2 is provided with multiple horizontally arranged jet holes 21. When the cover plate 1 is installed on the upper surface of the air passage 2, the air passage of the nozzle 11 corresponds to the jet holes 21. The compressed gas flowing in the air passage 2 can be smoothly ejected towards the material direction under the guidance of the jet holes 21 and the nozzle 11.

[0027] like Figure 3 , Figure 4 As shown, the lower end face of the gas passage 2 is provided with multiple downward-protruding docking parts 22, which are arranged along a transverse path. Multiple valves 3 are respectively installed on the lower end face of the multiple docking parts 22. The combination of multiple valves 3 and multiple docking parts 22 allows each valve 3 to be independently distributed. When a valve 3 malfunctions or wears, it can be replaced individually, improving the portability of replacement and installation operations.

[0028] like Figure 5 , Figure 6 As shown, the lower end face of the docking part 22 is provided with multiple docking holes 23, and the side of the valve 3 that is in contact with the docking part 22 is provided with multiple air outlet holes 31. The valve 3 is also provided with an air pipe interface 32. When the valve 3 is installed on the lower end face of the docking part 22, the docking holes 23 correspond to the air outlet holes 31. Compressed air entering the valve 3 through the air pipe interface 32 can pass through the air outlet holes 31 and the docking holes 23, and directly enter the air passage 2. In this process, airflow attenuation and fluctuation can be effectively avoided, improving the accuracy of the airflow when it is ejected through the nozzle 11 and shortening the response time of the nozzle 11.

[0029] like Figure 3 , Figure 4 As shown, a pressure plate 4 is installed on the air passage 2. The pressure plate 4 consists of an ear plate that fits against the upper surface of the air passage 2, a guide plate that extends obliquely downward from the rear end of the ear plate, and a vertical plate that extends downward from the bottom end of the guide plate. The pressure plate 4 allows material that jumps out behind the nozzle 11 during the descent to fall along the surface of the obliquely distributed guide plate, thus protecting the air passage 2 and the valve 3.

[0030] like Figure 4 As shown, in order to stably install the cover plate 1, air passage 2 and valve 3 on the frame of the color sorter, in this utility model, a positioning bracket 5 is provided below the pressure plate 4. The positioning bracket 5 can be installed with the frame of the color sorter. When the cover plate 1, air passage 2 and multiple valves 3 are installed together, the air passage 2 and multiple valves 3 are all located in front of the positioning bracket 5.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A color sorter spray valve assembly, characterized in that: It includes a cover plate (1), an air passage (2) detachably connected to the cover plate (1), and multiple valves (3) detachably connected to the air passage (2). The front end of the cover plate (1) is provided with multiple horizontally arranged nozzles (11). When the cover plate (1), the air passage (2) and the multiple valves (3) are installed together, compressed air passes through the valves (3) and the air passage (2) and is sprayed out through the nozzles (11) to contact the falling material.

2. The color sorter spray valve assembly according to claim 1, characterized in that: The upper surface of the air passage (2) is provided with multiple horizontally arranged jet holes (21). When the cover plate (1) is installed on the upper surface of the air passage (2), the air passage of the nozzle (11) corresponds to the jet hole (21).

3. The color sorter spray valve assembly according to claim 2, characterized in that: The lower end face of the gas passage (2) is provided with multiple downward protruding docking parts (22), the multiple docking parts (22) are arranged along the transverse path, and the multiple valves (3) are respectively installed on the lower end face of the multiple docking parts (22).

4. The color sorter spray valve assembly according to claim 3, characterized in that: The lower end face of the docking part (22) is provided with multiple docking holes (23). The side of the valve (3) that is in contact with the docking part (22) is provided with multiple air outlet holes (31). The valve (3) is provided with an air pipe interface (32). When the valve (3) is installed on the lower end face of the docking part (22), the docking hole (23) corresponds to the air outlet hole (31). Compressed air entering the valve (3) through the air pipe interface (32) can pass through the air outlet hole (31) and the docking hole (23) into the air passage (2).

5. The color sorter spray valve assembly according to claim 1, characterized in that: A pressure plate (4) is installed on the air passage (2). The pressure plate (4) consists of an ear plate that fits against the upper surface of the air passage (2), a guide plate that extends obliquely downward from the rear end of the ear plate, and a vertical plate that extends downward from the bottom end of the guide plate.

6. The color sorter spray valve assembly according to claim 5, characterized in that: The pressure plate (4) is provided with a positioning bracket (5) below it. When the cover plate (1), the air passage (2) and multiple valves (3) are installed together, the air passage (2) and multiple valves (3) are located in front of the positioning bracket (5).

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