Spray valve head of plastic bottle optical selector

By designing an integrated spray valve head body combined with multiple sets of inlet and outlet air passages, the problems of complex spray valve assembly structure and troublesome hose connection are solved, achieving simplified installation of the spray valve head and efficient media input.

CN223932031UActive Publication Date: 2026-02-24DONGGUAN BOLANKE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520868679.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-02-24
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

The spray valve assembly of existing plastic bottle optical separators has a complex structure, making inspection and maintenance inconvenient, and the need for multiple hose connections leads to assembly difficulties.

Method used

A spray valve head is designed with a one-piece molding body and multiple sets of inlet and outlet air passages. It is directly connected to multiple high-speed solenoid valves without the need for hoses. The medium is simultaneously input to all high-speed solenoid valves through the main inlet air passage. The structure is simple and easy to use.

Benefits of technology

This design simplifies the structure of the spray valve head, making installation and maintenance convenient, and improving the efficiency of media input while reducing assembly complexity and maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223932031U_ABST
Patent Text Reader

Abstract

The utility model discloses a spray valve head of a plastic bottle optical selector. The spray valve head comprises a spray valve head main body, wherein the bottom surface of the spray valve head main body can be used for fixing a plurality of high-speed electromagnetic valves; a plurality of groups of air inlet and outlet channels and a left-right through main air inlet channel are arranged on the spray valve head main body; each group of air inlet and outlet channels comprises an input air channel upwards penetrating from the bottom surface of the spray valve head main body to the main air inlet channel, an output air channel penetrating through the upper end surface and the lower end surface of the spray valve head main body, and an air exhaust channel penetrating from the bottom surface of the spray valve head main body to the side surface of the spray valve head main body; and the lower ends of the input air passage, the output air passage and the air exhaust passage of each group of air inlet and outlet passages can be correspondingly communicated with a medium inlet, an output port and an emptying port of a high-speed electromagnetic valve respectively. The spray valve head body can be connected with a plurality of high-speed electromagnetic valves without hoses, the structure is simple, the spray valve head body can input media into all the high-speed electromagnetic valves at the same time through the input air channels in the air inlet and outlet channels after inputting the media into the main air inlet channel, and finally power is output through the output air channel.
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Description

Technical Field

[0001] This utility model relates to the field of spray valve technology, specifically to a spray valve head for a plastic bottle optical sorter. Background Technology

[0002] The traditional plastic bottle recycling industry, due to historical, market, on-site management, raw material characteristics and technology reasons, is mostly designed with the idea of ​​reducing costs. The practitioners and enterprises are mostly individuals, sole proprietorships and micro-enterprises. They mostly use weighbridges to weigh the incoming materials and rely on manual experience to perform simple material and color classification of plastic bottles for calculation. They also use simple mechanical conveying and compression equipment to carry out classification, compression and packaging operations.

[0003] Of course, some places also use industrial sorting equipment (i.e., plastic bottle optical sorters) for rapid plastic bottle screening. For example, CN118768250A discloses an automatic anti-jamming plastic full-bottle color sorting device, which specifically discloses the following components: a conveyor belt for uniformly conveying plastic bottles to be sorted; an image component for acquiring images of plastic bottles on the conveyor belt, performing image processing, and sending the image processing information to a PLC controller; a spray valve component, including a spray valve housing and multiple spray valves, wherein the spray valve housing controls the spray valves to color sort plastic bottles thrown off the conveyor belt according to the instructions of the PLC controller; a photoelectric switch for sensing plastic bottles jammed between the spray valve housing and the conveyor belt and sending a jamming signal to the PLC controller; and at least two linear modules, wherein the linear modules are set at the bottom of the spray valve housing and drive the spray valve housing to move horizontally according to the instructions of the PLC controller.

[0004] However, some plastic bottle sorting machines on the market use spray valve assemblies that typically include multiple high-speed solenoid valves and corresponding nozzles. The output of each high-speed solenoid valve is connected via a flexible hose to the air outlet of a corresponding nozzle. In other words, multiple high-speed solenoid valves require multiple hoses to connect with multiple nozzles. This design, with its multiple nozzles, complicates the structure of the spray valve assembly and makes maintenance more difficult. Furthermore, the need for hoses connecting the output of the high-speed solenoid valves to the air outlets of the nozzles further complicates the assembly's structure and makes assembly more challenging.

[0005] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a spray valve head for a plastic bottle optical sorter. The spray valve head body can connect to multiple high-speed solenoid valves without the need for hoses. Moreover, the main air inlet in the spray valve head body can simultaneously input the medium to all high-speed solenoid valves after the medium is input. Finally, the power is output through the high-speed solenoid valves to each output air inlet of the spray valve head body. The structure is simple and easy to use.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A spray valve head for a plastic bottle optical sorter includes a spray valve head body with a bottom surface for fixing multiple high-speed solenoid valves arranged side by side; the spray valve head body is integrally molded, with a simple and durable structure; multiple sets of inlet and outlet air passages and a main air inlet passage penetrating its left and right ends are provided on the spray valve head body; each set of inlet and outlet air passages includes an input air passage extending upward from the bottom surface of the spray valve head body to the main air inlet passage, an output air passage located on one side of the main air inlet passage and penetrating the upper and lower end faces of the spray valve head body, and an output air passage extending from the bottom surface of the spray valve head body to the upper and lower end faces of the main air inlet passage. The exhaust air passage on the side of the valve head body; the lower ends of the input air passage, the output air passage and the exhaust air passage in each group of the inlet and outlet air passages can be respectively connected to the medium inlet, outlet and exhaust port of the high-speed solenoid valve; the valve head body can connect to multiple high-speed solenoid valves without hoses, which is simple in structure and easy to use. In addition, after the valve head body inputs the medium into the main inlet air passage, it can simultaneously input the medium into all high-speed solenoid valves through the input air passages in each group of the inlet and outlet air passages, and finally output power through the output air passage.

[0009] Furthermore, an auxiliary air intake passage that extends upward through the main air intake passage is also provided on the bottom surface of the main body of the spray valve head, so that the medium can also be input into the main air intake passage in the auxiliary air intake passage, reducing the space occupied by the pipeline in the horizontal direction.

[0010] Furthermore, the width of the main air intake is equal to the width of the auxiliary air intake.

[0011] Furthermore, multiple slots corresponding to the valve body of the high-speed solenoid valve are provided on the bottom surface of the main body of the spray valve head. The valve body of the high-speed solenoid valve can be inserted into the slots to facilitate the positioning of the high-speed solenoid valve.

[0012] Furthermore, each of the slots has an upwardly extending internal threaded hole on its top surface to facilitate connection with a high-speed solenoid valve.

[0013] Furthermore, each of the slots is provided with at least two symmetrically arranged internal threaded holes to improve the stability of the high-speed solenoid valve after installation.

[0014] Furthermore, one side of each of the slots extends toward the side of the valve head body and forms an opening, thereby facilitating the insertion of the valve body of the high-speed solenoid valve through the opening.

[0015] Furthermore, the width of the main air intake is greater than the width of the input air intake, the output air intake, and the exhaust air intake, respectively.

[0016] Furthermore, the air exhaust passage extends from the bottom surface of the spray valve head body to the front or rear side of the spray valve head body.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) The main body of the spray valve head of this utility model is integrally formed, with a simple and durable structure. Furthermore, it is provided with multiple sets of inlet and outlet air passages. The main body of the spray valve head can be used to directly install multiple high-speed solenoid valves without hoses, and each set of inlet and outlet air passages on the main body of the spray valve head will also be connected to a high-speed solenoid valve.

[0019] (2) The overall design of this utility model is very simple, and it is convenient to install high-speed solenoid valves without the need for hoses to connect them. At the same time, this utility model is designed with a main air intake channel that is connected to each group of air intake and exhaust channels, so that the medium can be directly input from the main air intake channel and can be simultaneously input to the input air intake channel of each group of air intake and exhaust channels, so as to realize the simultaneous input of medium to all high-speed solenoid valves, which is very convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 3 ;

[0023] Figure 4 yes Figure 3 Cross-sectional view along the middle AA;

[0024] Figure 5 This is a schematic diagram of the present invention in use.

[0025] Figure Labels

[0026] 1. Injector head body; 11. Main air intake; 12. Input air intake; 13. Output air intake; 14. Exhaust air intake; 15. Auxiliary air intake; 16. Slot; 17. Internal threaded hole; 2. High-speed solenoid valve. Detailed Implementation

[0027] The utility model will be further described below with reference to the accompanying drawings and specific embodiments. The following description is merely exemplary and does not limit the scope of protection of the utility model.

[0028] like Figure 1-5 As shown, a spray valve head for a plastic bottle optical sorter includes a spray valve head body 1 with a bottom surface for fixing multiple high-speed solenoid valves 2 arranged side by side; moreover, the spray valve head body 1 is provided with multiple sets of air inlet and outlet passages and a main air inlet passage 11 that runs through its left and right ends.

[0029] like Figure 4 As shown, each set of inlet and outlet air passages includes an input air passage 12 extending upward from the bottom surface of the nozzle head body 1 to the main air intake passage 11, an output air passage 13 located on one side of the main air intake passage 11 and extending through the upper and lower end faces of the nozzle head body 1, and an exhaust air passage 14 extending from the bottom surface of the nozzle head body 1 to the side surface of the nozzle head body 1. Therefore, the main air intake passage 11 can be used to simultaneously input media into multiple input air passages 12.

[0030] like Figure 5 As shown, during use, the lower ends of the input air passage 12, output air passage 13, and exhaust air passage 14 in each set of inlet and outlet air passages can be connected to the medium inlet, output port, and exhaust port of the high-speed solenoid valve 2, respectively. Specifically, the valve body of the high-speed solenoid valve 2 is placed against the bottom surface of the spray valve head body 1. Therefore, multiple high-speed solenoid valves 2 can be correspondingly used to connect with multiple sets of inlet and outlet air passages, so that each set of inlet and outlet air passages can cooperate with one high-speed solenoid valve 2. It can be seen that the spray valve head body 2 can be used to connect the high-speed solenoid valve 2 without the need for a hose, and the structure is very simple.

[0031] In addition, for ease of use, an auxiliary air intake duct 15 is provided on the bottom surface of the valve head body 1, extending upwards to the main air intake duct 11. Therefore, by providing the auxiliary air intake duct 15, even after both ends of the main air intake duct 11 are blocked, the medium can still enter the main air intake duct 11 through the auxiliary air intake duct 15, and then be input to the medium inlet of the high-speed solenoid valve 2 via the input air duct 12. In this way, since the pipeline connects to the auxiliary air intake duct 15 from bottom to top, the horizontal space occupied by the pipeline can be reduced.

[0032] Preferably, the width of the main air intake 11 is equal to the width of the auxiliary air intake 15, thereby ensuring smooth air intake. Furthermore, both the main air intake 11 and the auxiliary air intake 15 can be circular. However, those skilled in the art will understand that the width and shape of the main air intake 11 and the auxiliary air intake 15 can be configured with different widths and shapes, as long as the desired performance is achieved.

[0033] like Figure 2 and Figure 4 As shown, in order to facilitate the positioning of the high-speed solenoid valve 2, multiple slots 16 are provided on the bottom surface of the valve head body 1 for corresponding to the valve body of the high-speed solenoid valve 2. The valve body of the high-speed solenoid valve 2 can be inserted into the slots 16 to prevent the high-speed solenoid valve 2 from swinging during use.

[0034] like Figure 2 As shown, in addition to securing the high-speed solenoid valve 2, each slot 16 has an upwardly extending internally threaded hole 17 on its top surface. Specifically, each slot 16 has at least two symmetrically arranged internally threaded holes 17. In use, after the high-speed solenoid valve 2 is placed in the slot 16, a bolt is inserted into the pre-set through hole in the valve body of the high-speed solenoid valve 2, and then the bolt is tightened into the corresponding internally threaded hole 17. This completes the fixation of the high-speed solenoid valve 2 on the valve head body 1, resulting in a very stable structure.

[0035] like Figure 2 As shown, in this embodiment, one side of each slot 16 extends toward the side of the valve head body 1 and forms an opening, thereby facilitating the insertion of the valve body of the high-speed solenoid valve 2 through the opening.

[0036] In this embodiment, the width of the main intake duct 11 is greater than the widths of the input duct 12, the output duct 13, and the exhaust duct 14. However, those skilled in the art should know that other width designs can be used for the above-mentioned ducts, as long as the performance is guaranteed; further examples will not be given here.

[0037] like Figure 2 and Figure 4 As shown, in this embodiment, the air exhaust passage 14 extends from the bottom surface of the spray valve head body 1 to the front or rear side surface of the spray valve head body 1. Specifically, the cross-section of the air exhaust passage 14 is L-shaped.

[0038] Combination Figures 1-5 In practical use, first, fix the high-speed solenoid valve 2 as described above, then plug one end of the main intake duct 11 and the auxiliary intake duct 15, and then input the medium into the other end of the main intake duct 11 through the pipe. Of course, both ends of the main intake duct 11 can also be plugged and the medium can be input into the main intake duct 11 through the auxiliary intake duct 15. Next, the medium in the main intake duct 11 flows into each input air duct 12 and finally enters the medium inlet of each high-speed solenoid valve 2. Then, since the output port of the high-speed solenoid valve 2 is connected to the output air duct 13, it can be used to exhaust upwards, for example, it can be used to blow plastic bottles. In addition, the vent port of the high-speed solenoid valve 2 is connected to the vent air duct 14 to achieve venting.

[0039] In summary, the main body 1 of this invention is integrally molded, with a simple and durable structure. Furthermore, it features multiple sets of inlet and outlet air passages, allowing for the direct installation of multiple high-speed solenoid valves 2 without flexible hoses. Each set of inlet and outlet air passages on the main body 1 is also connected to a corresponding high-speed solenoid valve 2. Therefore, the overall design of this invention is very simple, facilitating the installation of high-speed solenoid valves without the need for flexible hoses. Simultaneously, this invention includes a main air inlet 11 that communicates with each set of inlet and outlet air passages, allowing the medium to be directly input from the main air inlet 11 and simultaneously input to the input air passages 12 of each set of inlet and outlet air passages, thus enabling simultaneous input of the medium to all high-speed solenoid valves 2, making it very convenient to use.

[0040] This utility model is not limited to the above-described embodiments. If any modifications or variations to this utility model do not depart from the spirit and scope of this utility model, and if such modifications and variations fall within the scope of the claims and equivalent technologies of this utility model, then this utility model also intends to include such modifications and variations.

Claims

1. A spray valve head for a plastic bottle optical sorter, characterized in that: Includes a valve head body with a bottom surface that can be used to fix multiple high-speed solenoid valves arranged side by side; The main body of the spray valve head is integrally formed; The main body of the spray valve head is provided with multiple sets of air inlet and outlet passages and a main air inlet passage that runs through its left and right ends. Each set of inlet and outlet air passages includes an input air passage that extends upward from the bottom surface of the main air intake to the main air intake, an output air passage located on one side of the main air intake and extending through the upper and lower end faces of the main air intake, and an exhaust air passage that extends from the bottom surface of the main air intake to the side surface of the main air intake. The lower ends of the input air passage, the output air passage, and the exhaust air passage in each group of air passages can be respectively connected to the medium inlet, output port, and exhaust port of the high-speed solenoid valve. The main body of the spray valve head can connect to multiple high-speed solenoid valves without the need for hoses. It has a simple structure and is easy to use. Furthermore, after the main body of the spray valve head inputs the medium into the main air intake, it can simultaneously input the medium into all high-speed solenoid valves through the input air passages in each of the groups of air intake and exhaust passages, and finally output power through the output air passage.

2. The spray valve head of the plastic bottle optical separator according to claim 1, characterized in that: An auxiliary air intake passage that extends upwards through the main air intake passage is also provided on the bottom surface of the main body of the spray valve head.

3. The spray valve head of the plastic bottle optical separator according to claim 2, characterized in that: The width of the main air intake is equal to the width of the auxiliary air intake.

4. The spray valve head of the plastic bottle optical separator according to claim 1, characterized in that: Multiple slots are provided on the bottom surface of the main body of the spray valve head for corresponding to the valve body of the high-speed solenoid valve, and the valve body of the high-speed solenoid valve can be inserted into the slots.

5. The spray valve head of the plastic bottle optical sorter according to claim 4, characterized in that: Each of the card slots has an upwardly extending internal threaded hole on its top surface.

6. The spray valve head of the plastic bottle optical separator according to claim 5, characterized in that: Each of the slots is provided with at least two symmetrically arranged internal threaded holes.

7. The spray valve head of the plastic bottle optical separator according to claim 4, characterized in that: One side of each of the slots extends toward the side of the valve head body and forms an opening.

8. The spray valve head of the plastic bottle optical separator according to claim 1, characterized in that: The width of the main air intake is greater than the width of the input air intake, the output air intake, and the exhaust air intake.

9. The spray valve head of the plastic bottle optical separator according to claim 1, characterized in that: The air exhaust passage extends from the bottom surface of the valve head body to the front or rear side of the valve head body.