阅读说明：本技术 喷气嘴及其制造方法 (Air nozzle and manufacturing method thereof ) 是由 张家林 李金龙 李旦 周建坤 黄忠喜 张代琼 于 2020-06-02 设计创作，主要内容包括：本发明公开一种喷气嘴及其制造方法。所述喷气嘴包括本体,在所述本体中形成有允许压缩空气流通的压缩空气通路。在所述本体中还形成有与所述压缩空气通路连通的补偿空气通路。在压缩空气流经所述压缩空气通路时,外部空气会经由所述补偿空气通路被抽吸到所述压缩空气通路中,并与所述压缩空气一起被喷出。因此,本发明可节约压缩空气的使用量和提高压缩空气的利用率,从而有利于提高电镀产品的质量。(The invention discloses an air nozzle and a manufacturing method thereof. The air nozzle includes a body in which a compressed air passage allowing compressed air to circulate is formed. A make-up air passage communicating with the compressed air passage is also formed in the body. When compressed air flows through the compressed air passage, outside air is drawn into the compressed air passage via the compensation air passage and is ejected together with the compressed air. Therefore, the invention can save the use amount of the compressed air and improve the utilization rate of the compressed air, thereby being beneficial to improving the quality of the electroplating product.)

1. An air nozzle comprising:

a body (110, 120) formed with a compressed air passage (11, 12, 13, 14) allowing the compressed air to flow therethrough,

the method is characterized in that:

a compensation air passage (20) communicating with the compressed air passage (11, 12, 13, 14) is further formed in the body (110, 120),

when compressed air flows through the compressed air passage (11, 12, 13, 14), outside air is drawn into the compressed air passage (11, 12, 13, 14) through the compensation air passage (20) and is ejected together with the compressed air.

2. The air nozzle of claim 1, wherein:

the body (110, 120) includes first and second ends opposite in a height direction thereof, and the compressed air passage (11, 12, 13, 14) includes a plurality of compressed air outflow passages (14) at the first end of the body (110, 120), the plurality of compressed air outflow passages (14) being aligned in a width direction of the body (110, 120).

3. The air nozzle of claim 2, wherein:

the body (110, 120) includes first and second sides opposite in a thickness direction, and the compensation air passage (20) includes a plurality of first compensation air passages (21) on the first side of the body (110, 120), the plurality of first compensation air passages (21) being aligned in a width direction of the body (110, 120) and communicating with the plurality of compressed air outflow passages (14), respectively.

4. The air nozzle of claim 3, wherein:

the compensating air passage (20) further includes a plurality of second compensating air passages (22) on a second side of the body (110, 120), the plurality of second compensating air passages (22) being aligned in a width direction of the body (110, 120) and communicating with the plurality of compressed air outflow passages (14), respectively.

5. The air nozzle of claim 4, wherein:

the compressed air outflow channel (14) extends in the height direction of the body (110, 120), and the first compensation air channel (21) and the second compensation air channel (22) respectively obliquely intersect the compressed air outflow channel (14).

6. The air nozzle of claim 5, wherein:

the angle between the first compensation air channel (21) and the compressed air outflow channel (14) is equal to the angle between the second compensation air channel (22) and the compressed air outflow channel (14), and the angle is greater than 90 degrees and less than 180 degrees.

7. The air nozzle of claim 6, wherein:

the first compensation air channel (21) and the second compensation air channel (22) are symmetrically arranged on both sides of the compressed air outflow channel (14).

8. The air nozzle of claim 4, wherein:

the compressed air passage (11, 12, 13, 14) further comprises a compressed air inlet channel (11) at the second end of the body (110, 120), compressed air flowing from the compressed air inlet channel (11) into the air nozzle and being ejected from the air nozzle via an outlet of the compressed air outlet channel (14).

9. The air nozzle of claim 8, wherein:

the compressed air passage (11, 12, 13, 14) further includes a compressed air accommodating chamber (12) in the body (110, 120), and the compressed air inlet passage (11) extends in a height direction of the body (110, 120) and communicates with the compressed air accommodating chamber (12).

10. The air nozzle of claim 9, wherein:

the compressed air passage (11, 12, 13, 14) further includes a plurality of compressed air connecting passages (13), the diameter of the compressed air connecting passages (13) is smaller than the diameter of the compressed air outflow passages (14), and the plurality of compressed air connecting passages (13) connect the plurality of compressed air outflow passages (14) to the compressed air accommodating chamber (12), respectively.

11. The air nozzle of claim 10, wherein:

the plurality of compressed air connecting passages (13) extend in the height direction of the bodies (110, 120), respectively, and the central axis of any one of the compressed air connecting passages (13) coincides with the central axis of a corresponding one of the compressed air outflow passages (14).

12. The air nozzle of claim 11, wherein:

the input end of any one compressed air outflow channel (14) is intersected with the output end of a corresponding first air supplement channel (21), the output end of a corresponding second air supplement channel (22) and the output end of a corresponding compressed air connecting channel (13).

13. The air nozzle of claim 10, wherein:

the compressed air receiving chamber (12) comprises a conical transition chamber (12a) tapering towards the compressed air connection channel (13).

14. The air nozzle of claim 9, wherein:

an internal thread (11a) adapted to be threadedly coupled with a pipe joint on a compressed air supply apparatus is formed on an inner wall of an inlet of the compressed air inlet passage (11).

15. The air nozzle of claim 14, wherein:

the body (110, 120) comprises a block-shaped main body part (110) and a cylindrical joint part (120), and the joint part (120) is suitable for being connected with a pipe joint on a compressed air supply device.

16. The air nozzle of claim 15, wherein:

the compressed air inlet passage (11) is formed in the joint part (120), and the compressed air receiving chamber (12), the compressed air connecting passage (13), the compressed air outlet passage (14), the first air replenishing passage (21), and the second air replenishing passage (22) are formed in the main body part (110).

17. The air nozzle according to any of claims 1-16, characterized in that: the air nozzle is used for blowing the plating solution or other liquid off the surface of the workpiece.

18. A method of manufacturing an air nozzle comprising the steps of:

s100: providing a solid support in line with the compressed air passages (11, 12, 13, 14) and the air compensation passages (20) in the air nozzle to be manufactured;

s200: printing an air nozzle body (110, 120) on the solid support using a 3D printing process;

s300: removing the solid support in the body (110, 120) so as to obtain an air nozzle having the compressed air passage (11, 12, 13, 14) and the air compensation passage (20).

19. The method of manufacturing an air nozzle according to claim 18, wherein:

the solid support is made of a material having a melting temperature lower than that of the body (110, 120) of the air nozzle;

in step S300, the solid support is heated so that the solid support melts and flows out of the body (110, 120), thereby forming the compressed air passage (11, 12, 13, 14) and the air compensation passage (20) in the body (110, 120).

20. The method of manufacturing an air nozzle according to claim 18, wherein:

the solid support is soluble in an etching solution, but the body (110, 120) of the air nozzle is insoluble in the etching solution;

in the step S300, the printed body (110, 120) is soaked into the corrosive liquid so that the solid support is dissolved into the corrosive liquid, thereby forming the compressed air passage (11, 12, 13, 14) and the air compensation passage (20) in the body (110, 120).

Technical Field

The present invention relates to an air nozzle and a method of manufacturing the air nozzle.

Background

In a continuous electroplating production line, an air nozzle (or called an air knife module) is needed to spray compressed air onto the surface of a workpiece so as to blow off plating solution or other liquid remained on the surface of the workpiece, thus avoiding the cross contamination of the plating solution in the front and the back procedures. The correct use of the air nozzle is crucial to improving the electroplating quality, and a compressed air source is generally required to be provided, so that the utilization rate of the compressed air by the air nozzle directly influences the electroplating quality and the energy consumption cost of the product.

In the prior art, the structure of a common air nozzle is simple, the air nozzle only comprises one or more single communicating flow channels, the flow channel turning direction is also right-angle type, and the utilization rate of compressed gas is not ideal.

In the prior art, air nozzles are generally prepared in two ways: directly machining or performing batch injection molding-assembly. The direct machining mode refers to that the traditional machining or numerical control machining center is directly used for directly reducing the material of the plastic block or the pipe, and has the limitation that complex flow channels cannot be machined, the machining mode is not batch, and the problem of difference of machining personnel or equipment exists. The injection molding-assembling mode refers to a mode of performing mass injection molding on the whole or part of the air knife and then assisting necessary assembling. Similar limiting factors exist in the integral injection molding mode and the machining mode, and the integral injection molding mode and the machining mode can only be used for relatively simple runner application; if an injection molding-assembly mode is adopted (particularly, a plurality of parts are separated and respectively subjected to injection molding production and then subjected to necessary assembly procedures), the sealing performance of the injection molding-assembly mode can be influenced by an assembly process, such as insufficient fastening of screws, unsealed joints of parts and the like, and the waste of compressed air resources is easily caused.

Disclosure of Invention

An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.

According to one aspect of the present invention, there is provided an air nozzle comprising: a body formed with a compressed air passage allowing compressed air to flow therethrough. A make-up air passage communicating with the compressed air passage is also formed in the body. When compressed air flows through the compressed air passage, outside air is drawn into the compressed air passage via the compensation air passage and is ejected together with the compressed air.

According to an exemplary embodiment of the present invention, the body includes first and second ends opposite in a height direction thereof, and the compressed air passage includes a plurality of compressed air outflow channels at the first end of the body, the plurality of compressed air outflow channels being aligned in a width direction of the body.

According to another exemplary embodiment of the present invention, the body includes first and second sides opposite in a thickness direction, and the compensation air passage includes a plurality of first compensation air passages on the first side of the body, the plurality of first compensation air passages being aligned in a width direction of the body and communicating with the plurality of compressed air outflow passages, respectively.

According to another exemplary embodiment of the present invention, the compensation air passage further includes a plurality of second compensation air channels on the second side of the body, the plurality of second compensation air channels being aligned in a width direction of the body and communicating with the plurality of compressed air outflow channels, respectively.

According to another exemplary embodiment of the present invention, the compressed air outflow passage extends in a height direction of the body, and the first and second compensation air passages obliquely intersect the compressed air outflow passage, respectively.

According to another exemplary embodiment of the present invention, an angle between the first compensation air channel and the compressed air outflow channel is equal to an angle between the second compensation air channel and the compressed air outflow channel, and the angle is greater than 90 degrees and less than 180 degrees.

According to another exemplary embodiment of the present invention, the first compensation air passage and the second compensation air passage are symmetrically arranged on both sides of the compressed air outflow passage.

According to another exemplary embodiment of the invention, the compressed air passage further comprises a compressed air inlet channel at the second end of the body, from which compressed air flows into the air nozzle and is ejected from the air nozzle via an outlet of the compressed air outlet channel.

According to another exemplary embodiment of the present invention, the compressed air passage further includes a compressed air accommodating chamber in the body, and the compressed air inlet passage extends in a height direction of the body and communicates with the compressed air accommodating chamber.

According to another exemplary embodiment of the present invention, the compressed air passage further includes a plurality of compressed air connection passages having a diameter smaller than that of the compressed air outflow passage and connecting the plurality of compressed air outflow passages to the compressed air receiving chamber, respectively.

According to another exemplary embodiment of the present invention, the plurality of compressed air connection passages respectively extend in a height direction of the body, and a central axis of any one of the compressed air connection passages coincides with a central axis of a corresponding one of the compressed air outflow passages.

According to another exemplary embodiment of the present invention, an input end of any one of the compressed air outflow passages meets an output end of a corresponding one of the first air replenishing passages, an output end of a corresponding one of the second air replenishing passages and an output end of a corresponding one of the compressed air connecting passages at one point.

According to a further exemplary embodiment of the present invention, the compressed air receiving chamber comprises a conical transition chamber tapering towards the compressed air connection channel.

According to another exemplary embodiment of the present invention, an internal thread adapted to be threadedly coupled with a pipe joint on a compressed air supply apparatus is formed on an inner wall of an inlet of the compressed air inlet passage.

According to another exemplary embodiment of the present invention, the body comprises a block-shaped main body portion and a cylindrical joint portion adapted to be connected with a pipe joint on a compressed air supply apparatus.

According to another exemplary embodiment of the present invention, the compressed air inlet passage is formed in the joint part, and the compressed air receiving chamber, the compressed air connecting passage, the compressed air outlet passage, the first air replenishing passage and the second air replenishing passage are formed in the body part.

According to another exemplary embodiment of the present invention, the air nozzle is used to blow plating solution or other liquid off the surface of the workpiece.

According to another aspect of the present invention, there is provided a method of manufacturing an air nozzle, comprising the steps of:

s100: providing a solid support that conforms to the compressed air path and the air compensation path in the air nozzle to be manufactured;

s200: printing the body of the air nozzle on the solid support member by adopting a 3D printing process;

s300: removing the solid support in the body, thereby obtaining an air nozzle having the compressed air passage and the air compensation passage.

According to an exemplary embodiment of the invention, the solid support is made of a material having a melting temperature lower than the body of the air nozzle; in the step S300, the solid support is heated so that the solid support is melted and flows out of the body, thereby forming the compressed air passage and the air compensation passage in the body.

According to another exemplary embodiment of the invention, the solid support is soluble in an etching liquid, but the body of the air nozzle is insoluble in the etching liquid; in the step S300, the printed body is soaked in the corrosive liquid so that the solid support is dissolved in the corrosive liquid, thereby forming the compressed air passage and the air compensation passage in the body.

In the foregoing respective embodiments according to the present invention, the outside air may be drawn into the compressed air passage via the compensation air passage and ejected together with the compressed air. Therefore, the invention can save the use amount of the compressed air and improve the utilization rate of the compressed air, thereby being beneficial to improving the quality of the electroplating product.

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.

Drawings

FIG. 1 shows a schematic perspective view of an air nozzle in accordance with an exemplary embodiment of the present invention;

FIG. 2 shows a widthwise cross-sectional view of an air nozzle in accordance with an exemplary embodiment of the present invention;

FIG. 3 shows a cross-sectional view through the thickness direction of an air nozzle in accordance with an exemplary embodiment of the present invention.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to one general technical concept of the present invention, there is provided an air nozzle, including: a body formed with a compressed air passage allowing compressed air to flow therethrough. A make-up air passage communicating with the compressed air passage is also formed in the body. When compressed air flows through the compressed air passage, outside air is drawn into the compressed air passage via the compensation air passage and is ejected together with the compressed air.

FIG. 1 shows a schematic perspective view of an air nozzle in accordance with an exemplary embodiment of the present invention; FIG. 2 shows a widthwise cross-sectional view of an air nozzle in accordance with an exemplary embodiment of the present invention; FIG. 3 shows a cross-sectional view through the thickness direction of an air nozzle in accordance with an exemplary embodiment of the present invention.

As shown in fig. 1-3, in the illustrated embodiment, the air nozzle primarily includes a body 110, 120. The bodies 110 and 120 are formed with compressed air passages 11, 12, 13, and 14 that allow compressed air to flow therethrough.

As shown in fig. 1 to 3, in the illustrated embodiment, a compensation air passage 20 communicating with the compressed air passages 11, 12, 13, 14 is further formed in the bodies 110, 120. When the compressed air flows through the compressed air passages 11, 12, 13, 14, the outside air is drawn into the compressed air passages 11, 12, 13, 14 via the compensation air passage 20 and is ejected together with the compressed air. Therefore, the invention can save the use amount of the compressed air and improve the utilization rate of the compressed air.

As shown in fig. 1 to 3, in the illustrated embodiment, the body 110, 120 includes first and second ends opposite in a height direction thereof, and the compressed air passage 11, 12, 13, 14 includes a plurality of compressed air outflow channels 14 at the first end of the body 110, 120, the plurality of compressed air outflow channels 14 being aligned in a width direction of the body 110, 120.

As shown in fig. 1 to 3, in the illustrated embodiment, the body 110, 120 includes first and second sides opposite in a thickness direction, and the compensation air passage 20 includes a plurality of first compensation air passages 21 on the first side of the body 110, 120, the plurality of first compensation air passages 21 being aligned in a width direction of the body 110, 120 and communicating with the plurality of compressed air outflow passages 14, respectively.

As shown in fig. 1 to 3, in the illustrated embodiment, the compensation air passage 20 further includes a plurality of second compensation air channels 22 on the second side of the body 110, 120, the plurality of second compensation air channels 22 being aligned in the width direction of the body 110, 120 and communicating with the plurality of compressed air outflow channels 14, respectively.

As shown in fig. 1 to 3, in the illustrated embodiment, the compressed air outflow passage 14 extends in the height direction of the bodies 110, 120, and the first and second compensation air passages 21, 22 obliquely intersect the compressed air outflow passage 14, respectively.

As shown in fig. 1 to 3, in the illustrated embodiment, the angle between the first compensation air channel 21 and the compressed air outflow channel 14 is equal to the angle between the second compensation air channel 22 and the compressed air outflow channel 14, and is greater than 90 degrees and less than 180 degrees. For example, the included angle may be 120 degrees, 130 degrees, 140 degrees, 150 degrees, 160 degrees, or other suitable angles.

As shown in fig. 1 to 3, in the illustrated embodiment, the first compensation air channel 21 and the second compensation air channel 22 are symmetrically arranged on both sides of the compressed air outflow channel 14.

As shown in fig. 1 to 3, in the illustrated embodiment, the compressed air passage 11, 12, 13, 14 further comprises a compressed air inlet channel 11 at the second end of the body 110, 120, compressed air flowing from the compressed air inlet channel 11 into the air nozzle and being ejected from the air nozzle via the outlet of the compressed air outlet channel 14.

As shown in fig. 1 to 3, in the illustrated embodiment, the compressed air passage 11, 12, 13, 14 further includes a compressed air accommodating chamber 12 in the body 110, 120, and the compressed air inlet passage 11 extends in the height direction of the body 110, 120 and communicates with the compressed air accommodating chamber 12.

As shown in fig. 1 to 3, in the illustrated embodiment, the compressed air passages 11, 12, 13, 14 further include a plurality of compressed air connecting passages 13, the diameter of the compressed air connecting passages 13 is smaller than that of the compressed air outflow passages 14, and the plurality of compressed air connecting passages 13 connect the plurality of compressed air outflow passages 14 to the compressed air accommodating chamber 12, respectively.

As shown in fig. 1 to 3, in the illustrated embodiment, the plurality of compressed air connection passages 13 extend in the height direction of the bodies 110, 120, respectively, and the central axis of any one of the compressed air connection passages 13 coincides with the central axis of the corresponding one of the compressed air outflow passages 14.

As shown in fig. 1 to 3, in the illustrated embodiment, the input end of any one of the compressed air outflow passages 14 meets at one point the output end of a corresponding one of the first air replenishing passages 21, the output end of a corresponding one of the second air replenishing passages 22, and the output end of a corresponding one of the compressed air connecting passages 13.

As shown in fig. 1 to 3, in the illustrated embodiment, the compressed air accommodating chamber 12 includes a tapered transition chamber 12a that tapers toward the compressed air connecting passage 13.

As shown in fig. 1 to 3, in the illustrated embodiment, an internal thread 11a adapted to be threadedly coupled with a pipe joint on a compressed air supply apparatus is formed on an inner wall of an inlet of the compressed air inlet passage 11.

As shown in fig. 1 to 3, in the illustrated embodiment, the body 110, 120 includes a block-shaped main body portion 110 and a cylindrical joint portion 120, and the joint portion 120 is adapted to be connected to a pipe joint on the compressed air supply apparatus.

As shown in fig. 1 to 3, in the illustrated embodiment, a compressed air inlet passage 11 is formed in the joint part 120, and a compressed air receiving chamber 12, a compressed air connecting passage 13, a compressed air outlet passage 14, a first air supplement passage 21, and a second air supplement passage 22 are formed in the body part 110.

As shown in fig. 1-3, in the illustrated embodiment, an air jet is used to blow plating solution or other liquid off the surface of the workpiece. The air nozzle can improve the quality of electroplating products.

In another exemplary embodiment of the present invention, as shown in fig. 1 to 3, there is also disclosed a method of manufacturing an air nozzle, including the steps of:

s100: providing a solid support (not shown) that conforms to the compressed air passages 11, 12, 13, 14 and the air compensation passages 20 in the air nozzle to be manufactured;

s200: printing the bodies 110, 120 of the air nozzles on the solid support by adopting a 3D printing process;

s300: the solid support in the body 110, 120 is removed, so that an air nozzle with compressed air passages 11, 12, 13, 14 and air compensation passages 20 is obtained.

As shown in fig. 1-3, in one exemplary embodiment of the invention, the solid support is made of a material having a lower melting temperature than the body 110, 120 of the air nozzle, e.g., the solid support may be made of wax and the body 110, 120 of the air nozzle may be made of plastic. In step S300, the compressed air passages 11, 12, 13, 14 and the air compensating passage 20 may be formed in the body 110, 120 by heating the solid support so that the solid support melts and flows out of the body 110, 120. For example, the printed body 110, 120 may be hung in an oven or placed in a 60-70 degree celsius water bath, which may remove the solid support in the body 110, 120.

In another exemplary embodiment of the invention, as shown in fig. 1-3, the solid support is soluble in an etching solution, but the body 110, 120 of the air nozzle is insoluble in the etching solution. In step S300, the printed body 110, 120 is soaked into the corrosive liquid so that the solid support is dissolved into the corrosive liquid, thereby forming the compressed air passage 11, 12, 13, 14 and the air compensation passage 20 in the body 110, 120.

It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.