CN216224918U - Multi-component liquid mixing nozzle - Google Patents
Multi-component liquid mixing nozzle Download PDFInfo
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- CN216224918U CN216224918U CN202122778976.XU CN202122778976U CN216224918U CN 216224918 U CN216224918 U CN 216224918U CN 202122778976 U CN202122778976 U CN 202122778976U CN 216224918 U CN216224918 U CN 216224918U
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Abstract
The utility model provides a multi-component liquid mixing nozzle which is provided with a plurality of spray holes, wherein the spray holes consist of an A-component spray hole and a B-component spray hole, and the A-component spray hole and the B-component spray hole are arranged at intervals. The multi-component liquid mixing nozzle provided by the utility model has the advantages that the AB components sprayed from the plurality of spray holes at high pressure are atomized and then mixed outside the nozzle, the A components and the B components are respectively sprayed from the plurality of nozzles which are mutually crossed and uniformly distributed, and sprayed A or B liquid droplets deviate towards the direction of the central axis of the nozzle, so that the AB components can be fully crossed, overlapped and uniformly mixed. The more the number of the spray holes is, the more uniform the mutual arrangement and distribution are, and the better the mixing effect is.
Description
Technical Field
The utility model belongs to the technical field of coating, and particularly relates to a nozzle for multi-component coating.
Background
The multi-component liquid materials such as paint, ink waterproof material, adhesive and the like are subjected to chemical reaction after being mixed, and molecules are crosslinked, so that the curing molding of the materials is realized, and the required systems such as a coating layer, a bonding layer and the like are formed.
In the prior art, a spraying machine is mostly used for construction of a multi-component liquid system, and an AB two-component coating is taken as an example, and a mixing method among components during construction comprises the following steps:
the AB components are mixed uniformly in a container according to a specified proportion, and then the mixed material is sucked into a spraying machine by a spraying machine with a single pump and is sprayed out from a nozzle by compression. The method and the equipment are simple and easy to operate, and are the most common spraying method at present. However, there is a problem in that the materials must be used up within a prescribed time after being mixed, or else they gel in the container and cannot be used; in addition, the coating in the coating machine and in the pipeline also needs to be cleaned within a certain time, otherwise the coating machine and the pipeline can be cured, the machine is blocked and even scrapped, and the danger is high when the material with the high curing speed is applied. The cleaning equipment needs to consume the diluent, so that waste is caused, and pollution problems such as VOC emission are caused.
In addition, a double-component special spraying device can be adopted, the AB components are respectively sucked and compressed by two pumps of the device and then enter a mixer in proportion, the AB components are mixed in the mixer in the flow, and the mixed materials enter a spray gun and then are sprayed out. The advantage of this process is that it avoids the need for the material to solidify in the pump of the applicator as described above. However, since the materials are mixed in the mixer and then sprayed out, the paint in the mixer, the pipeline and the spray gun must be cleaned within a certain time, otherwise the paint is solidified in the mixer, the pipeline and the spray gun, so that the equipment is blocked and even scrapped, and the danger is also high when the material with the high solidification speed is applied. The problems of waste caused by the consumption of diluent and pollution caused by VOC emission and the like caused by the need of cleaning equipment also exist.
Therefore, a novel spray gun nozzle which can completely overcome the unfavorable problems in the AB component construction is needed in the coating field, so that the two-component or multi-component liquid material spraying construction can be more convenient.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a multi-component liquid mixing nozzle.
The technical scheme for realizing the above purpose of the utility model is as follows:
a multi-component liquid mixing nozzle is provided with 4-16 spray holes, and the spray holes are uniformly distributed around the circle center on a circular nozzle interface; the plurality of spray holes consist of A-component spray holes and B-component spray holes, and the A-component spray holes and the B-component spray holes are arranged at intervals; the central axis of each orifice is at an angle of 3-15 degrees to the axis of the multi-component liquid mixing nozzle.
Wherein the spray holes are circular or elliptical, and the aperture of the spray holes is 0.2-3 mm.
The component A spray hole is connected with a component A spray pump of a bi-component high-pressure airless sprayer through a spray gun and a component A pipeline; the spray orifice of the component B is connected with a spray pump of the component B of the double-component high-pressure airless sprayer through a spray gun and a pipeline of the component B.
The two-component high-pressure airless sprayer is the existing spraying equipment in the prior art. The nozzle pressure provided by the spray pump can be 0.2 MPa-35 MPa. The nozzle is circular and the size of the nozzle is the size of the existing model, for example, the nozzle is phi 20.
According to a preferable technical scheme, the nozzle is provided with 4-6 jet holes, the jet holes are uniformly distributed around the circle center, and the central axis of each jet hole and the axis of the multi-component liquid mixing nozzle form an angle of 4-10 degrees.
The 4-6 spray holes are preferably distributed in a ring around the center of the circle.
According to another preferable technical scheme, the nozzle is provided with 6-16 spray holes, the spray holes are arranged in two rings around a circle center, and an included angle between the central axis of the spray holes in the outer ring and the axis of the multi-component liquid mixing nozzle is larger than an included angle between the central axis of the spray holes in the inner ring and the axis of the multi-component liquid mixing nozzle.
Furthermore, the nozzle is provided with 8 jet holes, the jet holes are arranged in two rings around the circle center, the included angle between the central axis of the jet hole positioned on the outer ring and the axis of the multi-component liquid mixing nozzle is 7-9 degrees, and the included angle between the central axis of the jet hole positioned on the inner ring and the axis of the multi-component liquid mixing nozzle is 4-6 degrees.
The application of the multi-component liquid mixing nozzle of the utility model is for spraying multi-component coatings.
The utility model has the beneficial effects that:
the multi-component liquid mixing nozzle provided by the utility model has the advantages that the AB components sprayed from the plurality of spray holes at high pressure are atomized and then mixed outside the nozzle, the A components and the B components are respectively sprayed from the plurality of nozzles which are mutually crossed and uniformly distributed, and sprayed A or B liquid droplets deviate towards the direction of the central axis of the nozzle, so that the AB components can be fully crossed, overlapped and uniformly mixed. The more the number of the spray holes is, the more uniform the mutual arrangement and distribution are, and the better the mixing effect is.
The multi-component liquid mixing nozzle provided by the utility model can effectively ensure that the AB two components are uniformly mixed; the danger of gel caused by mixing of the AB component in the spraying equipment is avoided; the problems of waste and environmental pollution caused by frequent use of diluent for cleaning equipment are avoided.
Drawings
Fig. 1 is a schematic view of an arrangement of nozzle holes in embodiment 1 of the present invention.
Fig. 2 is a schematic view of the arrangement of the nozzle holes in embodiment 2 of the present invention.
Fig. 3 is a schematic view of an arrangement of nozzle holes in embodiment 3 of the present invention.
FIG. 4 is a schematic view of the nozzle angles of the outer ring and the inner ring in embodiment 3 of the present invention.
Fig. 5 is a schematic view of the arrangement of the nozzle holes in embodiment 5 of the present invention.
Fig. 6 is a schematic view of the nozzle angle in embodiment 5 of the present invention.
In the figure, 1 is a multi-component liquid mixing nozzle, 2 is an a-component nozzle hole, 202 is a nozzle hole of an inner ring, 3 is a B-component nozzle hole, and 301 is a nozzle hole of an outer ring.
Detailed Description
The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
Unless otherwise specified, all technical means used in the specification are technical means existing in the field.
Example 1
The central axis of the spray hole and the axis of the nozzle form an included angle of 5 degrees.
Example 2
Referring to fig. 2, the present embodiment provides a multi-component liquid mixing nozzle 1 having a plurality of nozzle holes consisting of a-component nozzle holes 2 and B-component nozzle holes 3, which are arranged to be spaced apart from each other. The component A spray hole 2 is connected with a component A spray pump of a bi-component high-pressure airless sprayer through a spray gun and a component A pipeline; the component B spray hole 3 is connected with a component B spray pump of the double-component high-pressure airless sprayer through a spray gun and a component B pipeline.
In this embodiment, the multi-component liquid mixing nozzle 1 has 8 nozzle holes, wherein 4 nozzle holes 2 are formed in the component a, 4 nozzle holes 3 are formed in the component B, and the included angles between the central axes of the nozzle holes and the axis of the nozzle are both 5 degrees.
The component A spray holes 2 and the component B spray holes 3 are both circular, and the diameter of the circle is 0.54 mm.
Example 3
Referring to fig. 3 and 4, the present embodiment provides a multi-component liquid mixing nozzle 1 having a plurality of nozzle holes consisting of a-component nozzle holes 2 and B-component nozzle holes 3, which are arranged to be spaced apart from each other. The component A spray hole is connected with a component A spray pump of a bi-component high-pressure airless sprayer through a spray gun and a component A pipeline; the spray orifice of the component B is connected with a spray pump of the component B of the double-component high-pressure airless sprayer through a spray gun and a pipeline of the component B.
In this embodiment, the multi-component liquid mixing nozzle 1 has 8 nozzle holes, wherein 4 nozzle holes 2 of the component a and 4 nozzle holes 3 of the component B are distributed annularly and are uniformly arranged in an inner ring and an outer ring. 4 spray holes are uniformly distributed on each ring; referring to fig. 4, the central axis of the spray holes 301 in the outer ring forms an angle of 8 degrees with the axis of the multi-component liquid mixing nozzle, and the central axis of the spray holes 202 in the inner ring forms an angle of 5 degrees with the nozzle center line.
The component A spray holes 2 and the component B spray holes 3 are both circular, and the diameter of the circle is 0.32 mm.
Example 4
Referring to fig. 5 and 6, the present embodiment provides a multi-component liquid mixing nozzle 1 having a plurality of nozzle holes uniformly arranged in a ring around a center of a circle on a circular nozzle interface; the plurality of spray holes are composed of an A-component spray hole 2 and a B-component spray hole 3, and the A-component spray hole and the B-component spray hole are arranged at intervals. The component A spray hole is connected with a component A spray pump of a bi-component high-pressure airless sprayer through a spray gun and a component A pipeline; the spray orifice of the component B is connected with a spray pump of the component B of the double-component high-pressure airless sprayer through a spray gun and a pipeline of the component B.
In this embodiment, the multi-component liquid mixing nozzle 1 has 6 nozzle holes in total, wherein 3 nozzle holes 2 in the component a and 3 nozzle holes 3 in the component B. The spray holes are arranged in a ring shape around the center of the nozzle, and the radian of the interval between the spray holes is 60 degrees. The central axis of each orifice is at an angle of 5 ° to the axis of the multi-component liquid mixing nozzle.
The component A spray holes 2 and the component B spray holes 3 are both circular, and the diameter of each circular spray hole is 0.48 mm.
Application test of examples 1 to 4
The coating is an epoxy resin composition, and the component A comprises 40 parts of E51 epoxy resin, 20 parts of dimethylbenzene, 5 parts of butanol, 23 parts of titanium dioxide and 11 parts of talcum powder; 1 part of organic bentonite and 22 parts of low molecular polyamide as a component B.
The spray nozzles of examples 1 to 4 were used to connect the component A spray holes to the component A container and the component B spray holes to the component B container, each spray hole having a pressure of 20 MPa.
Evaluation of the quality of the coating after spraying: in the coverage range of the sprayed coating, the adhesive force and the hardness of the coating at each position need to reach more than 6MPa, and the smaller the data error is, the better the mixing effect of the nozzle is, and the better the spraying effect is. In comparative examples 1 to 4, the larger the number of the orifices, the more uniform the mutual arrangement and distribution, and the better the mixing effect. However, the number of the spray holes exceeds 8, so that a spray pump is required to provide large pressure to ensure the pressure of each spray hole, the difficulty of atomization is ensured to be improved, the cost of improving the mixing effect is increased, and 4 or 6 spray holes are preferably selected in consideration of the difficulty of processing, and are annularly arranged around the center of a circle to form a ring.
Although the present invention has been described in the foregoing by way of examples, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The multi-component liquid mixing nozzle is characterized by comprising 4-16 spray holes, wherein the spray holes are uniformly distributed on a circular nozzle interface around the circle center; the plurality of spray holes consist of A-component spray holes and B-component spray holes, and the A-component spray holes and the B-component spray holes are arranged at intervals; the central axis of each orifice is at an angle of 3-15 degrees to the axis of the multi-component liquid mixing nozzle.
2. The multi-component liquid mixing nozzle according to claim 1, wherein the orifice is circular or elliptical, and the orifice has a diameter of 0.2 to 3 mm.
3. The multi-component liquid mixing nozzle of claim 1, wherein the a-component orifice is connected to an a-component spray pump of a two-component high pressure airless sprayer through a spray gun and an a-component line; the spray orifice of the component B is connected with a spray pump of the component B of the double-component high-pressure airless sprayer through a spray gun and a pipeline of the component B.
4. The multi-component liquid mixing nozzle according to any one of claims 1 to 3, wherein the nozzle has 4 to 6 orifices, the orifices are uniformly arranged around the center of the circle, and the central axis of each orifice forms an angle of 4 to 10 ° with the axis of the multi-component liquid mixing nozzle.
5. The multi-component liquid mixing nozzle according to any one of claims 1 to 3, wherein the nozzle has 6 to 16 orifices, the orifices are arranged in two rings around a circle center, and an included angle between a central axis of the orifice located in the outer ring and an axis of the multi-component liquid mixing nozzle is larger than an included angle between a central axis of the orifice located in the inner ring and an axis of the multi-component liquid mixing nozzle.
6. The multi-component liquid mixing nozzle according to claim 5, wherein the nozzle has 8 orifices, the orifices are arranged in two rings around a circle center, the included angle between the central axis of the orifice located in the outer ring and the axis of the multi-component liquid mixing nozzle is 7-9 °, and the included angle between the central axis of the orifice located in the inner ring and the axis of the multi-component liquid mixing nozzle is 4-6 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778976.XU CN216224918U (en) | 2021-11-12 | 2021-11-12 | Multi-component liquid mixing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778976.XU CN216224918U (en) | 2021-11-12 | 2021-11-12 | Multi-component liquid mixing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216224918U true CN216224918U (en) | 2022-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122778976.XU Active CN216224918U (en) | 2021-11-12 | 2021-11-12 | Multi-component liquid mixing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216224918U (en) |
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2021
- 2021-11-12 CN CN202122778976.XU patent/CN216224918U/en active Active
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