Two-fluid nozzle
By using a two-fluid nozzle in the etching machine, the compressed air and the pharmaceutical liquid are mixed to form more uniform two-fluid particles, which solves the problem that traditional nozzles are difficult to achieve liquid particleization less than 50um, and improves the etching factor of the line and the etching ability of the fine lines.
Patent Information
- Application Number
- CN202421539435.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The nozzles of traditional etching machines cannot achieve liquid particleization of less than 50um, which makes it difficult for spraying potions to etch the roots of the line when the line spacing on the substrate is less than 50um, resulting in a large amount of side etching and reducing the etching factor of the line.
A two-fluid nozzle is used to mix compressed air with the medicinal liquid through the nozzle connecting pipe to form a two-fluid, and mix it through the gas channel and liquid channel in the nozzle core. The mixing chamber is designed to extend the mixing time to form more uniform two-fluid particles.
The degree of particleization of spray droplets is improved, and the roots of the lines on the substrate can be fully etched, sidewall etching is reduced, and the etching factor of the lines and the etching ability of the fine lines can be improved.
Smart Images
Figure CN222872444U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of fluid nozzles, and in particular relates to a two-fluid nozzle. Background Art
[0002] The etching part of the traditional etching machine only has a spray structure for spraying liquid medicine. The nozzle in this structure can only make the smallest particles of liquid atomization reach an average particle size of 50um, which is obviously too large. When the line spacing on the substrate is less than 50um (2.0mil), it is difficult for the existing spraying liquid particles to etch the root of the line, which will cause a large amount of side etching of the line and reduce the etching factor of the line. As the production of PCB boards develops towards "high", "precise" and "sharp", traditional etching machines can no longer meet the production requirements of high quality. Utility Model Content
[0003] The embodiment of the utility model provides a two-fluid nozzle to solve the problems in the prior art.
[0004] The utility model embodiment adopts the following technical scheme: a two-fluid nozzle, including a nozzle connecting tube, on which a plurality of two-fluid nozzles arranged at equal intervals are provided, the two-fluid nozzles are connected to the nozzle connecting tube, the two-fluid nozzle includes a nozzle cover, the nozzle cover and the nozzle connecting tube are detachably connected, a nozzle core is provided in the nozzle cover, a gas channel is provided on the nozzle core, a large sealing ring is provided between the gas channel and the nozzle connecting tube for sealing connection, an upwardly extending liquid inlet column is provided in the middle position of the nozzle core, a liquid channel is provided in the middle of the liquid inlet column, a small sealing ring is provided between the liquid channel and the liquid inlet column for sealing connection, a mixing chamber is provided in the nozzle cover, the mixing chamber is connected to the liquid channel and the gas channel, and an atomizing nozzle is provided at the bottom of the nozzle cover.
[0005] The utility model can fully etch the root of the circuit on the substrate and reduce the etching of the side wall of the circuit, that is, reduce the side etching of the circuit, improve the etching factor of the circuit, thereby improving the etching ability of the fine circuit, and also improves the process ability of making fine circuits.
[0006] Furthermore, the nozzle cover is provided with two symmetrical snap-fitting blocks, and the nozzle connecting pipe is provided with snap-fitting grooves for the snap-fitting blocks to snap-fit, and the snap-fitting blocks rotate in the snap-fitting grooves.
[0007] Furthermore, an air inlet channel and a liquid inlet channel are provided in the nozzle connecting pipe, and the air inlet channel and the liquid inlet channel are respectively connected with the gas channel and the liquid channel.
[0008] Furthermore, the gas channel is arranged obliquely and the diameter of the gas channel is smaller than the diameter of the air inlet channel.
[0009] Furthermore, the mixing chamber has a conical structure.
[0010] At least one of the above technical solutions adopted in the embodiment of the utility model can achieve the following beneficial effects:
[0011] Firstly, through the nozzle connecting tube, on the basis of liquid spraying, compressed air and liquid are mixed through the two-fluid nozzle to form a two-fluid for spray etching of the substrate, thereby improving the micronization degree of the spray droplets, improving the etching factor of the circuit, improving the etching ability of the substrate, and thus improving the process capability of making precise circuits on the substrate. The two-fluid nozzle mixes compressed air into the etching liquid to form a two-fluid. The particle size of the two-fluid particles sprayed out from the nozzle can reach below 10um, which can fully etch the root of the circuit on the substrate and reduce the etching of the side wall of the circuit, that is, reducing the side etching of the circuit, and improving the etching factor of the circuit, thereby improving the etching ability of the fine circuit, and also improving the process capability of making fine circuits.
[0012] Secondly, during use, the gas and etching solution are respectively transported from the air inlet channel and the liquid inlet channel in the nozzle connecting tube to the gas channel and the liquid channel, thereby realizing the transportation of the etching solution and the gas to the mixing chamber. Compared with the existing two-fluid nozzle, the mixing chamber in the utility model can increase and prolong the mixing time during use, so that the mixing path is longer and the mixing is more uniform, so that the atomized etching solution has a lower degree of dispersion and the formed two-fluid particles are more uniform. After the gas and etching solution are mixed in the mixing chamber, the mixed etching solution can be atomized and sprayed outward through the atomizing nozzle, and finally a wide-angle spray with a certain particle size is formed. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0015] Figure 2 It is a cross-sectional view of the utility model;
[0016] Figure 3 It is a three-dimensional structural schematic diagram of the two-fluid nozzle in the utility model;
[0017] Figure 4 It is a cross-sectional view of the two-fluid nozzle in the utility model;
[0018] Reference numerals
[0019] Nozzle connecting pipe 1, snap-fit groove 11, air inlet channel 12, liquid inlet channel 13, two-fluid nozzle 2, nozzle cover 21, snap-fit block 211, atomizing nozzle 212, nozzle core 22, gas channel 223, large sealing ring 224, liquid inlet column 225, liquid channel 226, small sealing ring 227, mixing chamber 3. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
[0022] Reference Figures 1 to 4 As shown, the embodiment of the utility model provides a two-fluid nozzle, including a nozzle connecting pipe 1, on which a plurality of two-fluid nozzles 2 arranged at equal intervals are arranged, the two-fluid nozzles 2 are connected to the nozzle connecting pipe 1, the two-fluid nozzle 2 includes a nozzle cover 21, the nozzle cover 21 is detachably connected to the nozzle connecting pipe 1, a nozzle core 22 is arranged in the nozzle cover 21, a gas channel 223 is arranged on the nozzle core 22, a large sealing ring 224 is arranged between the gas channel 223 and the nozzle connecting pipe 1 for sealing connection, and the large sealing ring 224 can seal the gas The nozzle cover 21 is provided with a mixing chamber 3, and the mixing chamber 3 is connected to the liquid channel 226 and the gas channel 223. The bottom of the nozzle cover 21 is provided with an atomizing nozzle 212.
[0023] The atomizing nozzle 212 on the two-fluid nozzle 2 can produce different types of atomization and atomization angles. In addition, for different application occasions, the utility model can use different types of atomizing nozzles 212.
[0024] During use, the gas and etching solution are respectively transported from the air inlet channel 12 and the liquid inlet channel 13 in the nozzle connecting tube 1 to the gas channel 223 and the liquid channel 226, so that the etching solution and the gas are transported to the mixing chamber 3. Compared with the existing two-fluid nozzle 2, the mixing chamber 3 in the utility model can increase and lengthen the mixing time during use, so that the mixing path is longer and the mixing is more uniform, so that the atomized etching solution has a lower degree of dispersion and the formed two-fluid particles are more uniform. After the gas and the etching solution are mixed in the mixing chamber 3, the mixed etching solution can be atomized and sprayed outward through the atomizing nozzle 212, and finally a wide-angle spray with a certain particle size is formed.
[0025] Specifically, the nozzle cover 21 is provided with two symmetrical snap-fit blocks 211, and the nozzle connecting tube 1 is provided with a snap-fit groove 11 for the snap-fit block 211 to snap-fit, and the snap-fit block 211 rotates in the snap-fit groove 11; the two-fluid nozzle 2 can be disassembled during use, so that the nozzle cover 21 can be installed in the snap-fit groove 11 in the nozzle connecting tube 1 through the two snap-fit blocks 211, and then the nozzle cover 21 is rotated so that the snap-fit block 211 is snap-fitted and fixed in the nozzle connecting tube 1, so that the air inlet channel 12 and the liquid inlet channel 13 are respectively connected to the gas channel 223 and the liquid channel 226. The two-fluid nozzle 2 can be disassembled and installed very conveniently during use, so as to clean and replace the two-fluid nozzle 2.
[0026] Specifically, an air inlet channel 12 and a liquid inlet channel 13 are provided in the nozzle connecting tube 1, and the air inlet channel 12 and the liquid inlet channel 13 are respectively connected to the gas channel 223 and the liquid channel 226; during use, the gas and the etching solution are respectively transported from the air inlet channel 12 and the liquid inlet channel 13 in the nozzle connecting tube 1 to the gas channel 223 and the liquid channel 226, thereby realizing the transportation of the etching solution and the gas to the mixing chamber 3, and fully mixing the gas and the etching solution.
[0027] Specifically, the gas channel 223 is inclined and the diameter of the gas channel 223 is smaller than the diameter of the air intake channel 12; when air is taken in, a large amount of high-pressure gas is transported from the coarse air intake channel 12 to the thin gas channel 223, so that the pressure of the gas output to the outside is enhanced, and it is better mixed and contacted with the liquid, so that the dispersion degree of the atomized liquid is lower, and the formed two-fluid particles are also more uniform.
[0028] Specifically, the mixing chamber 3 has a conical structure; during use, the mixing chamber 3 with a conical structure can enlarge and prolong the mixing time, so that the mixing path is longer and the mixing is more uniform. The top opening of the conical mixing chamber 3 is large enough to completely cover the gas channel 223 and the liquid channel 226, so that the etching solution and gas are completely transported into the mixing chamber 3.
[0029] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A two-fluid nozzle, comprising a nozzle connecting pipe (1), characterized in that: The nozzle connecting pipe (1) is provided with a plurality of two-fluid nozzles (2) arranged at equal intervals, and the two-fluid nozzles (2) are connected to the nozzle connecting pipe (1); The two-fluid nozzle (2) comprises a nozzle cover (21), and the nozzle cover (21) is detachably connected to the nozzle connecting pipe (1); A nozzle core (22) is provided inside the nozzle cover (21), and a gas channel (223) is provided on the nozzle core (22); A large sealing ring (224) is provided between the gas channel (223) and the nozzle connecting pipe (1) for sealing connection; A liquid inlet column (225) extending upward is provided in the middle of the nozzle core (22), and a liquid channel (226) is provided in the middle of the liquid inlet column (225); A small sealing ring (227) is provided between the liquid channel (226) and the liquid inlet column (225) for sealing connection; A mixing chamber (3) is provided in the nozzle cover (21), and the mixing chamber (3) is connected to the liquid channel (226) and the gas channel (223); An atomizing nozzle (212) is provided at the bottom of the nozzle cover (21).
2. A two-fluid nozzle according to claim 1, characterized in that: The nozzle cover (21) is provided with two symmetrical snap-fit blocks (211), and the nozzle connecting pipe (1) is provided with a snap-fit groove (11) for the snap-fit blocks (211) to snap-fit; The engaging block (211) rotates in the engaging groove (11).
3. A two-fluid nozzle according to claim 1, characterized in that: An air inlet channel (12) and a liquid inlet channel (13) are provided in the nozzle connecting pipe (1), and the air inlet channel (12) and the liquid inlet channel (13) are respectively connected to the gas channel (223) and the liquid channel (226).
4. A two-fluid nozzle according to claim 1, characterized in that: The gas channel (223) is arranged obliquely, and the diameter of the gas channel (223) is smaller than the diameter of the air inlet channel (12).
5. A two-fluid nozzle according to claim 1, characterized in that: The mixing chamber (3) has a conical structure.