CN113581643A

CN113581643A - Spraying pump head block that 3D printed

Info

Publication number: CN113581643A
Application number: CN202111032534.9A
Authority: CN
Inventors: 桑艺哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-02

Abstract

The invention discloses a 3D printing spray pump head cap which comprises a cap body, wherein a pump body connecting cavity is arranged on the lower side of the cap body, a main liquid channel is arranged on the upper side of the pump body connecting cavity, the main liquid channel is communicated with a liquid sub-channel and a liquid storage cavity, the other side of the liquid storage cavity is communicated with an inlet of the liquid sub-channel, the liquid sub-channel is communicated with a high-pressure cavity, and a spray nozzle is arranged on the other side of the high-pressure cavity. The 3D printing production process of the 3D printing spray pump head cap has the advantages that the production and processing precision is high, the size error is small, the spray is fine and smooth, the size of sprayed mist particles is uniform, the formed mist liquid drops are also uniformly distributed, the spray effect is better than that of a traditional device when the pressure for pressing the cap body is small, no residual liquid drops are accumulated at the outlet of a spray nozzle, the whole device is not polluted, and the use feeling of final consumers is very good.

Description

Spraying pump head block that 3D printed

Technical Field

The invention relates to the technical field of 3D printing, in particular to a spraying pump head cap for 3D printing.

Background

The 3D printing technology is Digital Light Processing (DLP), which is short for Digital Light Processing (DLP). That is, the light projection after the digital processing of the image signal is a technology for displaying the visual digital information according to the digital micromirror device, DMD, developed by texas instruments, usa. The basic principle of the DLP 3D printing technology is that a digital light source performs layer-by-layer projection on the surface layer of liquid photosensitive resin in a surface light source mode, and the liquid photosensitive resin is solidified and molded layer-by-layer. DLP has its distinctive advantages over other types of 3D printing technologies. At first, do not remove light, the vibration deviation is little does not have movable shower nozzle, does not have the material to block up the problem completely, does not have the part of heating, has promoted electric safety factor, and it is shorter to print the preparation time, and the energy saving, first consumptive material addition are far less than other equipment, practices thrift customer's expense. DLP is very suitable for printing and manufacturing finer parts, and other 3D printing processes such as Selective Laser Sintering (SLS) and three-dimensional photocuring are more and more precise.

Along with the continuous development of 3D printing technology, the product precision that 3D printed out is higher and higher, and production efficiency also is constantly improving, and the material that is fit for 3D to print is also more and more moreover. The method has the greatest advantage that parts with complicated and changeable internal structures can be machined, which is the capacity that the traditional material reducing machining method does not have.

The cap of the spray pump head on the market at present generally comprises 2 parts, a pressing cap and a spraying sheet, the production process is injection molding production, because the local structure sizes of the pressing cover cap and the spraying piece are very small and precise and are restricted by opening an injection mold, for example, a fine structure is difficult to process, a complex structure is difficult to realize, in addition, the product of the injection molding process can generate size fluctuation in the production process, a larger accumulated error is formed after assembly, therefore, most of the spray pumps in the market have the defects of poor fineness of spray, uneven size of sprayed mist particles, uneven distribution of formed mist liquid drops, when the pressure is small by pressing the cap of the spray pump head, the spraying effect is worse, and the residual liquid drops are accumulated at the outlet of the spray nozzle, and the more the liquid drops are accumulated, the liquid drops are left along the outer side of the pump body finally to pollute the whole pump head, and the use feeling of final consumers is very bad. Therefore, it is necessary to invent a method which is simple in process and easy to implement to replace the traditional processing.

Based on this, the invention designs a 3D printing spraying pump head cover cap to solve the above problems.

Disclosure of Invention

The invention aims to provide a 3D printing spray pump head cap, which solves the problems that the prior art is limited by an injection mold, for example, a fine structure is difficult to process, a complex structure is difficult to realize, and in addition, the product of the injection molding process can generate size fluctuation in the production process and form a large accumulated error after assembly, so that most of spray pumps in the market have the defects of poor spraying fineness, uneven size of sprayed mist particles, uneven distribution of formed mist liquid drops, poorer spraying effect when the pressure of the spray pump head cap is reduced, residual liquid drops at the outlet of a spray nozzle can be accumulated, more liquid drops can be accumulated, the liquid drops can be left along the outer side of a pump body, the whole pump head is polluted, and the final consumer feels very bad.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a spraying pump head block that 3D printed, includes the block body, block body downside is the pump body coupling chamber, the upside in pump body coupling chamber is liquid main entrance, liquid main entrance is linked together with liquid subchannel and stock solution chamber, the opposite side and the liquid subchannel entry in stock solution chamber are linked together, liquid subchannel and high-pressure chamber intercommunication, the opposite side in high-pressure chamber is the fog nozzle.

As a further aspect of the invention, the liquid branch channel is tangent to the high pressure chamber.

As a further scheme of the invention, the liquid branch channels are provided with three.

In a further aspect of the present invention, the cap body is connected to a discharge pipe of an external spray pump.

As a further aspect of the present invention, the outlet of the liquid runner is communicated with the high pressure chamber, that is, the outlet of the liquid runner is the inlet of the high pressure chamber.

As a further scheme of the invention, the access holes of the liquid sub-channels are uniformly distributed along the central axis of the liquid storage cavity at 120 degrees, and the minimum sizes of the sub-channels and the spray nozzles are 0.1 mm.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the 3D printing spray pump head cap and the production process thereof, 3D printing production is performed, the cap body and parts have small and precise local structure sizes, the production and processing precision is high, and the dimensional error is small. The invention can effectively improve the condition of poor spraying effect of the traditional spray pump.

(2) The cap body is connected with the spray pump, and due to the arrangement of the high-pressure cavity, liquid is sprayed out instantaneously to be scattered into countless fine liquid particles under the action of centrifugal force, so that fine spray is formed, the spray is fine and smooth, the size of the sprayed mist particles is uniform, the distribution of the formed mist liquid drops is uniform, the spray effect is better than that of a traditional device when the pressure for pressing the cap body is small, residual liquid drops are not accumulated at the outlet of the spray nozzle, the whole device is not polluted, and the use feeling of final consumers is very good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a 3D printed spray pump head cap according to the invention;

fig. 2 is a schematic front view of a 3D printed spray pump head cap according to the invention;

fig. 3 is a partially enlarged schematic view of a 3D printed spray pump head cap according to the invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a cap body; 2. the pump body is connected with the cavity; 3. liquid is divided into channels; 4. a main liquid channel; 5. a liquid storage cavity; 6. a high pressure chamber; 7. a spray nozzle; 8. and a liquid branch channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, the present invention provides a 3D printed spray pump head cap, wherein,

fig. 1 is a schematic cross-sectional view of a 3D printed spray pump head cap according to the invention, and as can be seen from fig. 1, the 3D printed spray pump head cap comprises a cap body 1, a pump body connecting cavity 2 is arranged at the lower side of the cap body 1, a main liquid channel 4 is arranged at the upper side of the pump body connecting cavity 2, the main liquid channel 4 is communicated with a liquid sub-channel 3 and a liquid storage cavity 5, and a spray nozzle 7 is arranged at the other side of a high-pressure cavity 6. The liquid branch channel 8 is tangent to the high-pressure cavity 6. The number of the liquid branch passages 8 is three. The cap body 1 is connected with a discharge pipe of an external spray pump. The outlet of the liquid branch channel 8 is communicated with the high-pressure cavity 6, namely the outlet of the liquid branch channel 8 is the inlet of the high-pressure cavity 6.

Fig. 2 is a schematic front view of a 3D printing spray pump head cap according to the present invention, and it can be seen from fig. 2 that the other side of the reservoir chamber 5 is communicated with the inlet of the liquid branch channel 8, and the liquid branch channel 8 is communicated with the high pressure chamber 6.

Fig. 3 is a partial schematic view of a 3D printed spray pump head cap according to the present invention, and as can be seen from fig. 3, the access holes of the liquid branch channels 8 are uniformly arranged at 120 ° along the central axis of the liquid storage chamber 5, and the minimum dimension of the branch channels 8 and the spray nozzles 7 is 0.1 mm.

In the practical application of the method, the material is,

the lower side of the cap body 1 is provided with a pump body connecting cavity 2 which is used for being connected with a discharge pipe of a main body of the spray pump, and the pump body connecting cavity 2 and the discharge pipe are in interference fit, so that liquid cannot leak and flow out from the space between the pump body connecting cavity 2 and the main discharge pipe on the cap body 1. The upside in pump body coupling chamber 2 is liquid main channel 4, liquid main channel 4 is linked together with liquid subchannel 3 and stock solution chamber 5, the opposite side and the 8 entry of three liquid subchannel of stock solution chamber 5 are linked together, the design of 8 entries of three liquid subchannel and the 120 evenly distributed of axis in stock solution chamber 5, the export and the high-pressure chamber 6 intercommunication of liquid subchannel 8, subchannel 8 and high-pressure chamber 6 are tangent, and the export of subchannel 8 is the entry of high-pressure chamber 6 promptly, the opposite side in high-pressure chamber 6 is atomizer 7.

When the spray pump of the cap body 1 is pressed to start working, liquid flows out from a material outlet pipe of the spray pump, enters the liquid main channel 4, then enters the liquid branch channel 3 along the liquid main channel 4 to flow into the liquid storage cavity 5, then flows into the branch channel 8 from the liquid storage cavity 5, then enters the high-pressure cavity 6 along the branch channel 8, and finally is sprayed out from the spray nozzle 7 on the other side of the high-pressure cavity 6.

The high-pressure liquid flows out of a material outlet pipe of the spray pump, the liquid enters a high-pressure cavity 6 along a liquid main channel 4, a liquid sub-channel 3, a liquid storage cavity 5 and three liquid sub-channels 8 under the action of pressure, when the high-pressure liquid enters the high-pressure cavity 6, the liquid sub-channels 8 and the high-pressure cavity 6 are tangent, the liquid entering the high-pressure cavity 6 generates high-speed rotation in the high-pressure cavity 6 due to the superposition effect of shearing pressure, when the high-speed rotating liquid in the high-pressure cavity 6 flows to a spray nozzle 7, due to the action of centrifugal force, the liquid is instantaneously sprayed and scattered into countless fine liquid particles, and therefore fine spray is formed.

The access hole of liquid subchannel 8 is evenly arranged along the axis 120 of stock solution chamber 5, and subchannel 8 and atomizer 7 structure are very accurate, and its minimum department size is only 0.1mm, and liquid is at the in-process of spraying pump delivery, and pressure loss is little, concentrates on high-pressure chamber 6 and atomizer 7, even slightly presses the block body, also can spout exquisite spraying.

According to the 3D printing spray pump head cap and the production process thereof, 3D printing production is performed, the cap body and parts have small and precise local structure sizes, the production and processing precision is high, and the dimensional error is small. The invention can effectively improve the condition of poor spraying effect of the traditional spray pump. According to the invention, the cap body 1 is connected with the spray pump, and through the arrangement of the high-pressure cavity 6, due to the action of centrifugal force, liquid is sprayed out and is broken up into countless fine liquid particles instantly, so that fine spray is formed, the spray is fine and smooth, the size of the sprayed mist particles is uniform, the distribution of the formed mist liquid drops is uniform, when the pressure for pressing the cap body 1 is small, the spray effect is better than that of a traditional device, residual liquid drops are not accumulated at the outlet of the spray nozzle 7, the whole device is not polluted, and the use feeling of final consumers is very good.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a spraying pump head block that 3D printed, includes block body (1), its characterized in that, block body (1) downside is pump body coupling chamber (2), the upside of pump body coupling chamber (2) is liquid main entrance (4), liquid main entrance (4) are linked together with liquid subchannel (3) and stock solution chamber (5), the opposite side and the liquid subchannel (8) entry of stock solution chamber (5) are linked together, liquid subchannel (8) and high-pressure chamber (6) intercommunication, the opposite side in high-pressure chamber (6) is fog nozzle (7).

2. A 3D printed spray pump head cap according to claim 1, where the liquid run-off (8) and the high pressure chamber (6) are tangential.

3. A 3D printed spray pump head cap according to claim 1, where there are three liquid sub-channels (8).

4. A 3D printed spray pump head cap according to claim 1, where the cap body (1) connects to the outlet tube of an external spray pump.

5. A 3D printed spray pump head cap according to claim 1, wherein the outlet of the liquid runner (8) communicates with the high pressure chamber (6), i.e. the outlet of the liquid runner (8) is the inlet of the high pressure chamber (6).

6. A 3D printed spray pump head cap according to claim 1, where the access holes of the liquid sub-channels (8) are evenly arranged at 120 ° along the central axis of the reservoir (5), and the minimum dimension of the sub-channels (8) and the spray nozzles (7) is 0.1 mm.