CN211217167U - Valve bank built-in external mixing nozzle - Google Patents
Valve bank built-in external mixing nozzle Download PDFInfo
- Publication number
- CN211217167U CN211217167U CN201921818227.1U CN201921818227U CN211217167U CN 211217167 U CN211217167 U CN 211217167U CN 201921818227 U CN201921818227 U CN 201921818227U CN 211217167 U CN211217167 U CN 211217167U
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- Prior art keywords
- channel
- piston
- communicated
- mounting cavity
- release agent
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- 239000007921 spray Substances 0.000 claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 230000007704 transition Effects 0.000 claims abstract description 42
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 20
- 239000006082 mold release agent Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a built-in external mixing nozzle of valves, including the nozzle body, be provided with piston installation cavity and transition core installation cavity on this nozzle body, this piston installation cavity and transition core installation cavity are through first passageway intercommunication, movable mounting has the piston in the piston installation cavity, be provided with first release agent passageway on the piston, install the transition core in the transition core installation cavity, be provided with second release agent passageway on this transition core, the one end that is close to transition core installation cavity on the nozzle body is connected with the nozzle, the upper end of this nozzle is provided with the mixing area, its lower extreme is provided with installation cavity and intercommunication chamber, this installation cavity communicates with the mixing area through the second passageway, this intercommunication chamber communicates with the mixing area through the third passageway, be provided with the spraying passageway on the nozzle body, this spraying passageway communicates with piston installation cavity, transition core installation cavity and intercommunication chamber; the spray head body is also provided with a control channel which is communicated with the piston mounting cavity and is not communicated with the spray channel.
Description
Technical Field
The utility model belongs to the casting field especially relates to a built-in outer shower nozzle that mixes of valves.
Background
As shown in fig. 1, the conventional spray head mainly comprises a spray head body and a spray head cover, wherein a release agent and spraying air are connected together through a pipeline, and the release agent and the spraying air are controlled to be opened and closed through a battery valve at the periphery. This structure:
(1) when the electromagnetic valves are opened, spraying air and a release agent are mixed in the spray head, and because a semi-sealed space is formed in the spray head, when the pressures of the two are unbalanced, the side with smaller pressure is pressed back, so that the spraying effect is influenced;
(2) when the solenoid valves are all closed, spraying is stopped. However, as the electromagnetic valve is arranged outside the spray head, a section of residual liquid exists from the spray head to the electromagnetic valve, and the phenomenon of residual liquid dripping exists due to the action of gravity;
therefore, the spray head with the existing structure has higher requirements on air pressure and water pressure, and the debugging and maintenance time is prolonged; meanwhile, the product quality is seriously affected due to the unstable spraying effect, and the installation and the maintenance are difficult due to the structural limitation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a built-in outer shower nozzle that mixes of valves to solve the problem among the prior art.
The technical scheme of the utility model as follows:
a built-in external mixing nozzle of a valve group comprises a nozzle body, wherein a piston mounting cavity and a transition core mounting cavity are arranged on the nozzle body and are communicated through a first channel, a piston is movably mounted in the piston mounting cavity, a first mold release agent channel is arranged on the piston, a transition core is mounted in the transition core mounting cavity, a second mold release agent channel is arranged on the transition core, the first mold release agent channel and the second mold release agent channel can be communicated or disconnected by the piston in the movement process, and a piston rear cover is arranged at an outer port of the piston mounting cavity;
one end of the spray head body, which is close to the transition core mounting cavity, is connected with a spray nozzle, the upper end of the spray nozzle is provided with a mixing region, the lower end of the spray nozzle is provided with a mounting cavity and a communicating cavity, the mounting cavity is communicated with the mixing region through a second channel, the communicating cavity is communicated with the mixing region through a third channel, one end of the transition core extends into the transition core mounting cavity, and the other end of the transition core extends into the mounting cavity;
a spraying channel is arranged on the spray head body and is communicated with the piston mounting cavity, the transition core mounting cavity and the communicating cavity;
and the spray head body is also provided with a control channel, the control channel is communicated with the piston mounting cavity, and the control channel is not communicated with the spray channel.
According to the scheme, before spraying, compressed air is introduced into the control channel, the piston moves upwards under the action of air pressure, and the lower end of the first channel is blocked, so that the release agent is blocked in the second release agent channel, and the release agent is prevented from dripping; when in spraying, compressed air is introduced into the spraying channel, the piston moves downwards under the action of pressure, the first channel is opened, the release agent enters a mixing area of the nozzle from the first release agent channel, the first channel and the second release agent channel, the compressed air enters the mixing area of the nozzle through the spraying channel, the communicating cavity and the third channel, and simultaneously the compressed air and the release agent are mixed in the mixing area and sprayed out. When the releasing agent is sprayed out from the second channel, the droplets of the releasing agent are expanded and atomized due to pressure change, and are further atomized under the impact of compressed air from the third channel, so that the droplets are refined, the coating of the releasing agent is light and uniform, black holes are eliminated, and the releasing agent can be effectively adhered.
Furthermore, a locking nut is connected to one end of the spray head body, which is close to the spray nozzle.
Further, the center line of the first mold release agent passage and the center line of the second mold release agent passage are located on a straight line.
Further, the spraying channel comprises a first through section, a second through section, a third through section, a fourth through section and a fifth through section which are sequentially communicated, the second through section is communicated with the piston installation cavity, the fourth through section is communicated with the transition core installation cavity, and the fifth through section is communicated with the communication cavity.
Furthermore, the number of the fifth through sections is two, and the fifth through sections are respectively communicated with the fourth through sections and the communication cavity.
Further, the third channels are a plurality of and are evenly distributed around the second channel.
The third channels are uniformly distributed around the second channel, when the release agent is sprayed out of the second channel, droplets of the release agent expand and atomize due to pressure change, and are further atomized under the impact of surrounding compressed air coming out of the third channels, and meanwhile, the other part of the compressed air forms a fan-shaped air curtain to limit the liquid from dissipating to the periphery. The liquid drops are fundamentally refined, the distribution condition of the liquid drops is improved, and the coating is light, thin and uniform, so that 'black holes' are eliminated, the release agent is effectively attached, and the using amount of the release agent is reduced on the premise of the same spraying quality.
Further, the diameter of the second passage is smaller than that of the second release agent passage, and the diameter of the third passage is smaller than that of the communication cavity.
Has the advantages that: the utility model discloses make the whole inbuilts of valves of control release agent and compressed air return circuit break-make in the nozzle body, spraying hybrid process reaction time is short, and the setting of piston has effectively prevented water clock and spraying blocking phenomenon. The release agent is not mixed with the compressed air until the outlet of the nozzle, and when the release agent is sprayed out, droplets of the release agent expand and atomize due to pressure change, and are further atomized due to the impact of the compressed air, so that the droplets are fundamentally refined, the distribution condition of the droplets is improved, the release agent coating is light, thin and uniform, the spraying quality is improved, the integral structure is simple, and the mounting and the maintenance are convenient.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention before spraying;
fig. 3 is a schematic structural diagram of the present invention during spraying.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
the internal and external mixing nozzle for the valve group shown in fig. 2 and 3 comprises a nozzle body 1, wherein a piston mounting cavity 10 and a transition core mounting cavity 11 are arranged on the nozzle body 1, the piston mounting cavity 10 and the transition core mounting cavity 11 are communicated through a first channel 12, a piston 2 is movably mounted in the piston mounting cavity 10, a first mold release agent channel 21 is arranged on the piston 2, a transition core 3 is mounted in the transition core mounting cavity 11, a second mold release agent channel 31 is arranged on the transition core 3, and the central line of the first mold release agent channel 21 and the central line of the second mold release agent channel 31 are located on the same straight line. A locking nut 4 is connected to one end of the spray head body 1 close to the spray nozzle 5, the first release agent channel 21 and the second release agent channel 31 can be communicated or disconnected by the piston 2 in the moving process, and a piston rear cover 8 is arranged at the outer port of the piston mounting cavity 10 to seal the outer port of the piston mounting cavity 10. A sealing ring is arranged between the lower end of the transition core 3 and the transition core mounting cavity 11, so that the release agent is ensured to directly enter the second release agent channel 31 after entering the transition core mounting cavity 11.
One end of the spray head body 1, which is close to the transition core mounting cavity 11, is connected with a spray nozzle 5, the upper end of the spray nozzle 5 is provided with a mixing region 55, the lower end of the spray nozzle is provided with a mounting cavity 51 and a communicating cavity 53, the mounting cavity 51 is communicated with the mixing region 55 through a second channel 52, the communicating cavity 53 is communicated with the mixing region 55 through a third channel 54, one end of the transition core 3 extends into the transition core mounting cavity 11, the other end of the transition core extends into the mounting cavity 51, and the third channels 54 are distributed uniformly around the second channel 52. The diameter of the second passage 52 is smaller than that of the second release agent passage 31, and the diameter of the third passage 54 is smaller than that of the communication chamber 53.
The spray head comprises a spray head body 1, and is characterized in that a spray channel is arranged on the spray head body 1, the spray channel is communicated with a transition core installation cavity 11 and a communication cavity 53, and simultaneously under the action of a piston 2, the spray channel can also be communicated with a piston installation cavity 10, the spray channel comprises a first through section 61, a second through section 62, a third through section 63, a fourth through section 64 and a fifth through section 65 which are sequentially communicated, the second through section 62 is communicated with the piston installation cavity 10, the fourth through section 64 is communicated with the transition core installation cavity 11, and the fifth through section 65 is communicated with the communication cavity 53. The first through section 61, the third through section 63 and the fifth through section 65 are arranged in parallel, the second through section 62 and the fourth through section 64 are arranged in parallel, and the first through section 61 and the second through section 62 are arranged vertically.
The number of the fifth through sections 65 is two, the lower ends thereof are respectively communicated with the fourth through sections 64, and the upper ends thereof are respectively communicated with the communication chamber 53.
The spray head body 1 is also provided with a control channel 7, the control channel 7 is communicated with the piston mounting cavity 10, and meanwhile, the control channel 7 is not communicated with the spray coating channel.
Before spraying, as shown in figure 2, compressed air is introduced into the control channel 7, the piston 2 moves upwards under the action of air pressure, and the lower end of the first channel 12 is blocked, so that the release agent is blocked in the second release agent channel 31, and the release agent is prevented from dripping; during spraying, as shown in fig. 3, compressed air is introduced into the spraying channel, the piston moves downwards under the action of pressure, the first channel 12 is opened, the release agent enters the mixing area 55 of the nozzle 5 from the first release agent channel 21, the first channel 12 and the second release agent channel 31, and the compressed air enters the mixing area 55 of the nozzle through the spraying channel, the communication cavity 53 and the third channel 54. The release agent is not mixed with the compressed air until the mixing zone 55. At the moment of ejection, the droplets of the release agent are expanded and atomized due to pressure change, and are impacted and further atomized by the compressed air coming out from the third channel 54 in the circumferential direction, and meanwhile, the other part of the compressed air forms a fan-shaped air curtain to limit the liquid from dissipating to the periphery. The liquid drops are thinned fundamentally, the distribution condition of the liquid drops is improved, and the air enables the coating to be light, thin and uniform, so that 'black holes' are eliminated. The release agent is effectively attached, and the dosage of the release agent is effectively reduced under the same spraying quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a built-in outer mixed shower nozzle of valves which characterized in that: the mold release agent spraying device comprises a spraying head body (1), wherein a piston mounting cavity (10) and a transition core mounting cavity (11) are arranged on the spraying head body (1), the piston mounting cavity (10) and the transition core mounting cavity (11) are communicated through a first channel (12), a piston (2) is movably mounted in the piston mounting cavity (10), a first mold release agent channel (21) is arranged on the piston (2), a transition core (3) is mounted in the transition core mounting cavity (11), a second mold release agent channel (31) is arranged on the transition core (3), the first mold release agent channel (21) and the second mold release agent channel (31) can be communicated or disconnected by the piston (2) in the movement process, and a piston rear cover (8) is arranged at an outer port of the piston mounting cavity (10);
one end, close to the transition core mounting cavity (11), of the spray head body (1) is connected with a spray nozzle (5), the upper end of the spray nozzle (5) is provided with a mixing region (55), the lower end of the spray nozzle is provided with a mounting cavity (51) and a communicating cavity (53), the mounting cavity (51) is communicated with the mixing region (55) through a second channel (52), the communicating cavity (53) is communicated with the mixing region (55) through a third channel (54), one end of the transition core (3) extends into the transition core mounting cavity (11), and the other end of the transition core extends into the mounting cavity (51);
a spraying channel is arranged on the spray head body (1), and the spraying channel is communicated with the piston mounting cavity (10), the transition core mounting cavity (11) and the communicating cavity (53);
the spray head body (1) is also provided with a control channel (7), the control channel (7) is communicated with the piston mounting cavity (10), and meanwhile, the control channel (7) is not communicated with the spray channel.
2. The valve block internal-external mixing spray head of claim 1, wherein: and a locking nut (4) is connected to one end of the spray head body (1) close to the spray nozzle (5).
3. The valve block internal-external mixing spray head of claim 1, wherein: the center line of the first mold release agent passage (21) and the center line of the second mold release agent passage (31) are located on a straight line.
4. The valve block internal-external mixing spray head of claim 3, wherein: the spraying channel comprises a first through section (61), a second through section (62), a third through section (63), a fourth through section (64) and a fifth through section (65) which are sequentially communicated, the second through section (62) is communicated with the piston installation cavity (10), the fourth through section (64) is communicated with the transition core installation cavity (11), and the fifth through section (65) is communicated with the communication cavity (53).
5. The valve block internal-external mixing spray head of claim 4, wherein: the number of the fifth through sections (65) is two, and the fifth through sections are respectively communicated with the fourth through section (64) and the communication cavity (53).
6. The valve block internal-external mixing spray head of claim 5, wherein: the third channels (54) are a plurality of which are evenly distributed around the second channels (52).
7. The valve block internal-external mixing spray head of any one of claims 1-6, wherein: the diameter of the second passage (52) is smaller than that of the second release agent passage (31), and the diameter of the third passage (54) is smaller than that of the communication cavity (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818227.1U CN211217167U (en) | 2019-10-25 | 2019-10-25 | Valve bank built-in external mixing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921818227.1U CN211217167U (en) | 2019-10-25 | 2019-10-25 | Valve bank built-in external mixing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211217167U true CN211217167U (en) | 2020-08-11 |
Family
ID=71936422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921818227.1U Expired - Fee Related CN211217167U (en) | 2019-10-25 | 2019-10-25 | Valve bank built-in external mixing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211217167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083580A (en) * | 2021-03-30 | 2021-07-09 | 哈尔滨医科大学 | Coating atomizing coating device |
| CN114472817A (en) * | 2022-02-23 | 2022-05-13 | 重庆渝江压铸有限公司 | Angle-adjustable deep cavity atomization device |
-
2019
- 2019-10-25 CN CN201921818227.1U patent/CN211217167U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113083580A (en) * | 2021-03-30 | 2021-07-09 | 哈尔滨医科大学 | Coating atomizing coating device |
| CN114472817A (en) * | 2022-02-23 | 2022-05-13 | 重庆渝江压铸有限公司 | Angle-adjustable deep cavity atomization device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |