CN115284747B - Aerosol spot-spraying nozzle - Google Patents
Aerosol spot-spraying nozzle Download PDFInfo
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- CN115284747B CN115284747B CN202211074993.8A CN202211074993A CN115284747B CN 115284747 B CN115284747 B CN 115284747B CN 202211074993 A CN202211074993 A CN 202211074993A CN 115284747 B CN115284747 B CN 115284747B
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- 239000000443 aerosol Substances 0.000 title claims abstract description 102
- 238000005507 spraying Methods 0.000 title claims abstract description 76
- 239000003595 mist Substances 0.000 claims abstract description 99
- 239000007921 spray Substances 0.000 claims abstract description 44
- 238000009423 ventilation Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 43
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The invention provides an aerosol spot-spraying nozzle which comprises a spot-spraying power module, wherein the spot-spraying power module comprises a driving device and a mist guide pipe; the rotary mist guide shaft module is arranged below the spot-shooting power module and comprises a mist guide hollow rotating shaft connected with the driving device; the ventilation module is arranged in the rotary mist guide shaft module and comprises a ventilation plug connected with the mist guide hollow rotating shaft, an air cylinder sleeved outside the ventilation plug and a negative pressure air connector, wherein one end of the negative pressure air connector is connected with the air cylinder, and the other end of the negative pressure air connector is connected with the air exhaust device; the ventilation plug comprises a main mist inlet hole communicated with the mist guide pipe and a mist outlet hole arranged at one side of the main mist inlet hole and communicated with the main mist inlet hole; the air cylinder comprises a fog guide hole and an air suction negative pressure hole which are matched with the fog outlet hole, and the air suction negative pressure hole is communicated with the negative pressure air joint; and the spraying module is used for spraying the aerosol in the mist guide holes to the outside. The aerosol spot spray head can solve the problem that the sprayed lines are not accurate enough when the spraying device in the prior art performs discontinuous spraying.
Description
Technical Field
The invention relates to the field of aerosol spraying devices, in particular to an aerosol spot-spraying nozzle.
Background
Aerosol jet printing technology is a non-contact trap fabrication technology that has emerged in recent years. Compared with the traditional material printing technology product, the printing device has the characteristics of high printing precision (about 8 mu m), good boundary controllability, multiple applicable materials (nebulizable solution and suspension), wide viscosity range (1-1000 cP), micro-nano structure in-situ regulation and control and the like, can realize nano-scale thickness and micro-scale characteristics, can be widely applied to research, development, preparation and small-batch production processes of material films and high-performance devices in the fields of new energy, electronics, photoelectricity, micro-nano manufacturing, semiconductors, biological medicines and the like, and provides a brand new scheme for new material design and surface interface research.
In conventional aerosol spraying, continuous spraying can achieve a high-definition spraying process. However, with the expansion of the application field of aerosol spraying, discontinuous high-definition spraying becomes particularly urgent. For discontinuous spraying control of aerosol spraying, the traditional control mode generally adopts an electromagnet switch blocking mode, and although the use requirement of discontinuous spraying is relieved, the practical problem in the use process is met. Such as: in the discontinuous spraying process, when the electromagnetic switch is blocked, ink is accumulated on the baffle, and the nozzle is blocked by pollution when the ink with higher viscosity is seriously used; in addition, in the switching process of the electromagnet, the electromagnet stretches out and draws back to strike the spray head module under the action of magnetic force to cause vibration of the spray head module, so that regular wavy lines and tails which are difficult to control appear at the end points of the lines.
Disclosure of Invention
Based on this, the present invention aims to provide an aerosol spot-spraying nozzle, which aims to solve at least one technical problem in the background technology.
The aerosol spot-spraying nozzle comprises a spot-spraying power module, a spray nozzle body and a spray nozzle body, wherein the spot-spraying power module comprises a driving device and a mist guide pipe penetrating through the driving device; the rotary mist guide shaft module is arranged below the spot-fire power module and comprises a mist guide hollow rotating shaft connected with the driving device; the ventilation module is arranged in the rotary mist guide shaft module and comprises a ventilation plug connected with the mist guide hollow rotating shaft, an air outlet cylinder sleeved outside the ventilation plug, and a negative pressure air connector with one end connected with the air outlet cylinder and the other end connected with the air exhaust device; the ventilation plug comprises a main mist inlet hole communicated with the mist guide pipe and a mist outlet hole arranged at one side of the main mist inlet hole and communicated with the main mist inlet hole; the air cylinder comprises a fog guide hole and an air suction negative pressure hole which are matched with the fog outlet hole, and the air suction negative pressure hole is communicated with the negative pressure air connector; and the spraying module is used for spraying the aerosol in the mist guide holes to the outside.
The aerosol spot spraying nozzle is communicated with the aerosol supply device through the aerosol guide pipe, the aerosol guide pipe penetrates through the driving device and the aerosol guide hollow rotating shaft of the rotary aerosol guide shaft module and is communicated with the main aerosol inlet pipe in the air exchange plug of the air exchange module, so that aerosol can enter the main aerosol inlet hole and the aerosol outlet hole through the aerosol guide pipe, when the aerosol spot spraying nozzle needs to perform discontinuous spot spraying, the aerosol firstly passes through the aerosol guide pipe, the main aerosol inlet hole and the aerosol outlet hole and then enters the aerosol guide hole of the air outlet cylinder, finally enters the spraying module from the aerosol guide hole to spray to the outside, then the driving device drives the aerosol guide hollow rotating shaft to rotate, and the air exchange plug is driven by the aerosol guide hollow rotating shaft to rotate, so that the aerosol outlet hole in the air exchange plug is moved from the upper part of the aerosol guide hole to be coaxially communicated with the air exhaust negative pressure hole. The device realizes the discontinuous spraying function by rotating the ventilation plug, so that the problem of mechanical vibration of the aerosol spot spray head caused by impact can not occur in the discontinuous spraying process, and the situation that a regular wavy line and a tail which is difficult to control occur at the line end point is avoided. In addition, because the aerosol in the aerosol spot spraying nozzle is pumped by the air extractor, the situation of residual accumulation of the aerosol in the aerosol spot spraying nozzle can not occur, thereby solving the problem of excessive ink accumulation on the spraying baffle during discontinuous spraying.
In addition, the aerosol spot-fire nozzle provided by the invention can also have the following additional technical characteristics:
preferably, the rotary mist guide shaft module further comprises a spot-shooting sleeve and a sealing nut which are sleeved on the outer side of the mist guide hollow rotating shaft, the sealing nut is fixed above the spot-shooting sleeve, and the ventilation module is arranged in the spot-shooting sleeve; the middle section of the mist guide hollow rotating shaft outwards extends to form a circle of flanging, and the spot-shooting sleeve is sleeved and fixed on the mist guide hollow rotating shaft through the flanging.
Preferably, the spraying module comprises a nozzle shell connected with the point spraying sleeve, an inner nozzle piece arranged in the nozzle shell and connected with the air cylinder, and an outer nozzle piece with one end arranged in the nozzle shell and the other end extending out of the nozzle shell, wherein one side, far away from the inner nozzle piece, of the outer nozzle piece is connected with the nozzle, and air guide holes which are mutually communicated and coaxial are formed in the outer nozzle piece, the inner nozzle piece and the nozzle.
Preferably, the spraying module further comprises a positive pressure air connector, wherein one end of the positive pressure air connector is connected with the air supply device, and the other end of the positive pressure air connector is communicated with the inside of the nozzle shell; the inner spray head piece is close to one side of the outer spray head piece and is conical, the outer spray head piece is nested on the inner spray head piece, a gap is formed in the nesting portion, the outer spray head piece is arranged on the side wall of one end of the nozzle shell, a gap is formed between the side wall of the outer spray head piece and the inner wall of the nozzle shell, and the positive pressure air connector is communicated with the air guide hole through the gap.
Preferably, a screw hole communicated with the air guide hole is formed in one side, close to the air cylinder, of the inner nozzle piece, the screw hole is matched with external threads on the side wall of the air cylinder, and a gap is formed between the bottom of the screw hole and the bottom of the air cylinder.
Preferably, the cylinder is close to one side of the ventilation plug and is provided with a containing groove for containing the ventilation plug, the bottom of the containing groove is provided with a sealing gasket, the side wall of the containing groove is provided with a sealing strip, the sealing gasket is provided with two through holes, the through holes are respectively matched with the mist guide holes and the air extraction negative pressure holes, and sealing is realized between the cylinder and the ventilation plug through the sealing gasket and the sealing strip.
Preferably, sealing rings are arranged at the joints of the spot-fire sleeve and the sealing nut and the mist guide hollow rotating shaft respectively.
Preferably, the aerosol spot-spraying nozzle further comprises a nozzle bracket, wherein a fixing platform for fixing the driving device is outwards extended from the top end of the nozzle bracket, and an avoiding hole for avoiding the mist guide pipe is formed in the fixing platform; the spray head support bottom outwards extends has the clamp that is used for fixing the spray head module, the clamp side is equipped with the fastener and is used for compressing tightly the spray head module.
Preferably, the spray head support is further provided with a limit sensor, and a sensor baffle sheet matched with the limit sensor is arranged on the outer side of the rotary mist guide shaft module.
Preferably, the bottom of the accommodating groove is further provided with a boss, the sealing gasket is provided with a groove matched with the boss, and the height of the sealing gasket is greater than that of the boss.
Drawings
FIG. 1 is a schematic diagram of an aerosol spot-fire nozzle according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an aerosol spot-fire nozzle according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a ventilation module according to an embodiment of the invention;
FIG. 4 is a schematic cross-sectional view of 1/4 of an outlet cylinder according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of 1/4 of a rotary mist guiding shaft module according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a spray module according to an embodiment of the invention;
FIG. 7 is a schematic view of a showerhead holder according to an embodiment of the present invention;
description of main reference numerals:
the invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, an aerosol spot spraying nozzle according to a first embodiment of the present invention includes a spot spraying power module 10, a rotary mist guiding shaft module 20, a ventilation module 30 and a spraying module 40, which are sequentially arranged from top to bottom, wherein:
the spot-fire power module 10 comprises a driving device 11 and a mist guide pipe 12 penetrating through the driving device 11; the rotary mist guide shaft module 20 is arranged below the spot-fire power module 10 and comprises a mist guide hollow rotating shaft 21 connected with the driving device 11; the ventilation module 30 is arranged in the rotary mist guide shaft module 20 and comprises a ventilation plug 31 connected with the mist guide hollow rotating shaft 21, an air cylinder 32 sleeved outside the ventilation plug 31, and a negative pressure air connector 33 with one end connected with the air cylinder 32 and the other end connected with an air extracting device; the air exchanging plug 31 comprises a main mist inlet 311 communicated with the mist guide pipe 12 and a mist outlet 312 arranged at one side of the main mist inlet 311 and communicated with the main mist inlet 311; the air outlet cylinder 32 comprises a mist guide hole 321 and an air suction negative pressure hole 322 which are matched with the mist outlet hole 312, and the air suction negative pressure hole 322 is communicated with the negative pressure air joint 33; the spraying module 40 is used for spraying the aerosol in the mist guiding hole 321 to the outside.
It can be understood that, through the connection between the mist guide pipe 12 and the aerosol supply device, the mist guide pipe 12 is inserted into the mist guide hollow shaft 21 of the driving device 11 and the rotary mist guide shaft module 20 and is connected with the main mist inlet pipe 311 in the ventilation plug 31 of the ventilation module 30, so that the aerosol can enter the main mist inlet hole 311 and the mist outlet hole 312 through the mist guide pipe 12, when the aerosol spot spray nozzle needs to perform discontinuous spot spray coating, the aerosol passes through the mist guide pipe 12, the main mist inlet hole 311 and the mist outlet hole 312 and then enters the mist guide hole 321 of the air outlet cylinder 32, finally enters the spray module 40 from the mist guide hole 321 to be sprayed to the outside, then the driving device 11 drives the mist guide hollow shaft 21 to rotate, and the mist guide hollow shaft 21 drives the ventilation plug 31 to rotate, so that the mist outlet hole of the ventilation plug 31 moves from above the mist guide hole 321 to be coaxially connected with the air suction negative pressure hole 322, and at the same time, the negative pressure air suction negative pressure hole 322 is connected with the air suction joint 33, and the negative pressure air joint 33 is connected with the air suction device, so that the aerosol can not be sprayed from the negative pressure spray coating 33, and the aerosol can not repeatedly sprayed from the air suction device, and the aerosol can not be sprayed from the negative pressure spray coating module 40. Because the device realizes the discontinuous spraying function by rotating the air exchange plug 31, the problem of mechanical vibration of the aerosol spot spray head caused by impact can not occur in the discontinuous spraying process, thereby avoiding the occurrence of regular wavy lines at the line end points and the situation of tail which is difficult to control. In addition, because the aerosol in the aerosol spot-spraying nozzle is pumped by the air extractor, the situation of residual accumulation of the aerosol in the aerosol spot-spraying nozzle can not occur, and the ink can not be accumulated on the baffle.
It should be noted that, the driving device 11 may be a hollow shaft stepper motor, the rotation shaft of which is hollow and is convenient for the mist guide tube 12 to be penetrated therein, and the driving device 11 is connected with an external power supply and a console through a wire, so as to realize full-automatic spraying of the aerosol spot spray head. Furthermore, a common atomizer may be used as the aerosol supply device communicating with the mist guide pipe 12. And the air extracting device and the air supplying device can adopt an air pump. Furthermore, the power of the evacuation device may be adjusted for different materials to ensure that aerosols can be evacuated from the negative pressure gas fitting 33. In addition, the ink is super atomized to form the aerosol described in the application.
Specifically, the rotary mist guiding shaft module 20 further comprises a spot-injection sleeve 22 and a sealing nut 23 which are sleeved on the outer side of the mist guiding hollow rotating shaft 21, the sealing nut 23 is fixed above the spot-injection sleeve 22, and the ventilation module 30 is arranged in the spot-injection sleeve 22; the middle section of the mist guide hollow rotating shaft 21 is outwards extended to form a circle of flanging 211, and the spot-injection sleeve 22 is sleeved and fixed on the mist guide hollow rotating shaft 21 through the flanging 211. It can be understood that the injection sleeve 22 and the sealing nut 23 are sequentially sleeved on the flange 211 from the upper part of the mist guiding hollow rotating shaft 21, then the mist guiding hollow rotating shaft 21 is fixedly connected with the rotating shaft of the driving rotating device 11, so that the installation of the rotary mist guiding shaft module 20 is realized, and the sealing connection between the mist guiding hollow rotating shaft 21 and the injection sleeve 22 is realized by arranging the sealing nut 23 and arranging the sealing rings 70 at the connection parts of the injection sleeve 22 and the sealing nut 23 and the mist guiding hollow rotating shaft 21 respectively.
In addition, the spraying module 40 includes a nozzle housing 41 connected to the spot spraying sleeve 22, an inner nozzle member 42 disposed in the nozzle housing 41 and connected to the air outlet cylinder 32, and an outer nozzle member 43 having one end disposed in the nozzle housing 41 and the other end extending out of the nozzle housing 41, wherein one side of the outer nozzle member 43 away from the inner nozzle member 42 is connected to the nozzle 44, and air guide holes 421 which are mutually communicated and coaxial are provided in the outer nozzle member 43, the inner nozzle member 42 and the nozzle 44. It will be appreciated that the nozzle housing 41 is connected to the impingement sleeve 22 such that the air exchange module 30 is disposed within the nozzle housing 41 and the impingement sleeve 22, and the aerosol within the air exchange module 30 is sprayed to the environment sequentially through the inner spray head member 42, the outer spray head member 43, and the spray head 44.
Further, the spraying module 40 further comprises a positive pressure air connector 45, wherein one end of the positive pressure air connector 45 is connected with the air supply device, and the other end of the positive pressure air connector is communicated with the inside of the nozzle shell 41; the inner nozzle member 42 is tapered near the outer nozzle member 43, the outer nozzle member 43 is nested on the inner nozzle member 42 with a gap in the nested portion, the side wall of the outer nozzle member 43 at one end of the nozzle housing 41 is spaced from the inner wall of the nozzle housing 41, and the positive pressure air connector 45 communicates with the air guide hole 421 through the gap. It can be appreciated that the air supply device applies pressure to the air hole 421 through the positive pressure air connector 45 and the above gap, so that the aerosol in the air hole 421 is further compressed, and the diameters of the air holes in the outer nozzle member 43 and the nozzle 44 are gradually reduced, so that the concentration of the aerosol finally ejected by the spraying module 40 is further improved, and the pattern printed by the spraying is clearer.
By way of example and not limitation, in some alternative embodiments, the inner nozzle member 42 is provided with a threaded hole 422 on a side of the cylinder 32 that communicates with the air guide hole 421, the threaded hole 422 being adapted to external threads on the side wall of the cylinder 32, the bottom of the threaded hole 422 being spaced from the bottom of the cylinder 32. The connection of the cylinder 32 to the inner nozzle member 42 is accomplished by the through-threads, and a gap is provided so that the aerosol can enter the air guide hole 421 from the air guide hole 321. During specific installation, the inner spray head piece 42 extends into the nozzle shell 41 from the upper part of the nozzle shell 41, then the inner spray head piece 42 is fixed in the nozzle shell 41 through threads, then the outer spray head piece 43 extends into the nozzle shell 41 from the lower part of the nozzle shell 41, the outer spray head piece 43 is fixed on the nozzle shell 41 through threads, the spray head 44 is fixed with the outer spray head piece 43 through threads, and finally the air outlet cylinder 32 is installed on the inner spray head piece 42; the outlet cylinder 43 is then fitted over the gas exchange plug 31 in alignment with the gas exchange plug 31, while the nozzle housing 41 is rotated, so that the nozzle housing 41 is screwed into the firing sleeve 22. In addition, a raw material tape is wound on the thread. The tightness of the threaded connection is ensured by winding the raw material belt. In addition, in some alternative embodiments, the thread may be provided as a seal tube thread with a thread form angle of 55 degrees, and tightness of the threaded connection may also be achieved, and in this embodiment, a fit of a conical external thread and a conical internal thread may be used, where the fit is suitable for high pressure applications.
In addition, a containing groove 323 for containing the replacement air plug 31 is arranged on one side, close to the air plug 31, of the air cylinder 32, a sealing gasket 50 is arranged at the bottom of the containing groove 323, two through holes are formed in the sealing gasket 50 and are respectively matched with the mist guide hole 321 and the air extraction negative pressure hole 322, a sealing strip 60 is arranged on the side wall of the containing groove 323, and sealing is achieved between the air cylinder 32 and the air plug 31 through the sealing gasket 50 and the sealing strip 60. The air exchanging plug 31 and the air cylinder 32 can rotate mutually, and a sealing piece is arranged to realize the sealing between the two. In addition, the bottom of the accommodating groove 323 is further provided with a boss 3231, the sealing gasket 50 is provided with a groove matched with the boss 3231, the height of the boss 3231 is lower than that of the sealing gasket 50, and the boss 3213 is provided to prevent the sealing gasket 50 from rotating when the air exchanging plug 31 rotates, so that the sealing gasket 50 blocks the mist guiding hole 321 and the air exhausting negative pressure hole 322.
Specifically, the aerosol spot-spraying nozzle further comprises a nozzle bracket 80, a fixing platform 81 for fixing the driving device 11 is outwards extended from the top end of the nozzle bracket 80, and an avoidance hole 811 for avoiding the mist guide pipe 12 is formed in the fixing platform 81; the bottom end of the nozzle support 80 extends outwards to form a clamp 82 for fixing the nozzle module 40, and a fastener 83 is arranged on the side surface of the clamp 82 for pressing the nozzle module 40. It can be understood that the driving device 11 is fixedly arranged on the fixing platform 81 in a erecting way, then the mist guide pipe 11 and the rotating shaft of the driving device 11 extend downwards through the avoiding holes 811, the outer side of the nozzle housing 41 of the spraying module 40 is in a step shape, the clamp 82 is clamped below the step-shaped part on the outer side of the nozzle housing 41, the spraying module 40 is further pressed and fixed through the fastening piece 83, and the aerosol spot spraying nozzle is fixed on the nozzle bracket 80 in a fixing mode of the upper end and the lower end.
Further, the spray head bracket 80 is further provided with a limit sensor 90, and a sensor baffle 100 adapted to the limit sensor 90 is arranged on the outer side of the rotary mist guiding shaft module 20. Specifically, the limit sensor 90 may be a laser sensor or a hall sensor, and the sensor baffle 100 is correspondingly adapted according to the type of the limit sensor 90. Because the driving device 11 is used for a long time, the situation that the rotation angle is too large or too small may occur when the driving device 11 drives the ventilation plug 31 to rotate, and the mist outlet 312 cannot be aligned with the mist guide 321 or the air suction negative pressure 322, so that the cooperation of the limit sensor 90 and the sensor baffle 100 is required to help the driving device 11 to calibrate. Specifically, a console may be provided to control the limit sensor 90 and the driving device 11, and the driving device 11 may be calibrated by information provided by the limit sensor 90.
In summary, in the above embodiment of the present invention, the aerosol spot spraying nozzle is communicated with the aerosol supply device through the aerosol guiding tube 12, the aerosol guiding tube 12 is inserted into the driving device 11 and the aerosol guiding hollow shaft 21 of the rotary aerosol guiding shaft module 20 and is communicated with the main air inlet tube 311 in the air exchanging plug 31 of the air exchanging module 30, so that the aerosol can enter the main air inlet hole 311 and the aerosol outlet hole 312 through the aerosol guiding tube 12, when the aerosol spot spraying nozzle needs to perform the discontinuous spot spraying, the aerosol firstly passes through the aerosol guiding tube 12, the main air inlet hole 311 and the aerosol outlet hole 312 and then enters the aerosol guiding hole 321 of the air outlet cylinder 32, finally enters the spraying module 40 from the aerosol guiding hole 321 to be sprayed to the outside, then the driving device 11 drives the air guiding hollow shaft 21 to rotate, the air exchanging plug 31 is driven to rotate, and the aerosol outlet hole 312 of the air exchanging plug 31 is moved from above the air guiding hole 321 to be coaxially communicated with the negative pressure hole 322, and the negative pressure air suction hole 322 is communicated with the negative pressure air suction joint 33, and the negative pressure air suction joint 33 is communicated with the negative pressure air suction device 33 at the moment, at the same time, so that the aerosol can not be sprayed repeatedly from the negative pressure joint 33, and the aerosol can not be sprayed repeatedly. Because the device realizes the discontinuous spraying function by rotating the air exchange plug 31, the problem of mechanical vibration of the aerosol spot spray head caused by impact can not occur in the discontinuous spraying process, thereby avoiding the occurrence of regular wavy lines at the line end points and the situation of tail which is difficult to control. In addition, because the aerosol in the aerosol spot-spraying nozzle is pumped by the air extractor, the situation of residual accumulation of the aerosol in the aerosol spot-spraying nozzle can not occur, and the ink can not be accumulated on the baffle.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. An aerosol spot fire nozzle, comprising:
the spot-fire power module comprises a driving device and a mist guide pipe penetrating through the driving device;
the rotary mist guide shaft module is arranged below the spot-fire power module and comprises a mist guide hollow rotating shaft connected with the driving device;
the ventilation module is arranged in the rotary mist guide shaft module and comprises a ventilation plug connected with the mist guide hollow rotating shaft, an air outlet cylinder sleeved outside the ventilation plug, and a negative pressure air connector with one end connected with the air outlet cylinder and the other end connected with the air exhaust device; the ventilation plug comprises a main mist inlet hole communicated with the mist guide pipe and a mist outlet hole arranged at one side of the main mist inlet hole and communicated with the main mist inlet hole; the air cylinder comprises a fog guide hole and an air suction negative pressure hole which are matched with the fog outlet hole, and the air suction negative pressure hole is communicated with the negative pressure air connector;
the spraying module is used for spraying the aerosol in the mist guide holes to the outside;
the rotary mist guide shaft module further comprises a spot-shooting sleeve and a sealing nut which are sleeved on the outer side of the mist guide hollow rotating shaft, the sealing nut is fixed above the spot-shooting sleeve, and the ventilation module is arranged in the spot-shooting sleeve; the middle section of the mist guide hollow rotating shaft outwards extends to form a circle of flanging, and the spot-shooting sleeve is sleeved and fixed on the mist guide hollow rotating shaft through the flanging.
2. The aerosol spot-spraying nozzle according to claim 1, wherein the spraying module comprises a nozzle shell connected with the spot-spraying sleeve, an inner nozzle piece arranged in the nozzle shell and connected with the air cylinder, and an outer nozzle piece with one end arranged in the nozzle shell and the other end extending out of the nozzle shell, one side of the outer nozzle piece away from the inner nozzle piece is connected with the nozzle, and air guide holes which are communicated with each other and coaxial are arranged in the outer nozzle piece, the inner nozzle piece and the nozzle.
3. The aerosol spot fire nozzle of claim 2, wherein the spray module further comprises a positive pressure air connector, one end of the positive pressure air connector is connected with an air supply device, and the other end of the positive pressure air connector is communicated with the interior of the nozzle housing; the inner spray head piece is close to one side of the outer spray head piece and is conical, the outer spray head piece is nested on the inner spray head piece, a gap is formed in the nesting portion, the outer spray head piece is arranged on the side wall of one end of the nozzle shell, a gap is formed between the side wall of the outer spray head piece and the inner wall of the nozzle shell, and the positive pressure air connector is communicated with the air guide hole through the gap.
4. An aerosol spot fire nozzle according to claim 2 or 3, wherein the side of the inner nozzle member adjacent to the cylinder is provided with a screw hole in communication with the air guide hole, the screw hole is adapted to the external thread on the side wall of the cylinder, and a gap is provided between the bottom of the screw hole and the bottom of the cylinder.
5. The aerosol spot-fire nozzle according to claim 1, wherein a containing groove for containing the ventilation plug is formed in one side, close to the ventilation plug, of the air cylinder, a sealing gasket is arranged at the bottom of the containing groove, a sealing strip is arranged on the side wall of the containing groove, two through holes are formed in the sealing gasket, the through holes are respectively matched with the mist guide holes and the air suction negative pressure holes, and sealing is achieved between the air cylinder and the ventilation plug through the sealing gasket and the sealing strip.
6. The aerosol spot-fire nozzle of claim 1, wherein sealing rings are arranged at the joints of the spot-fire sleeve and the sealing nut and the mist guide hollow rotating shaft respectively.
7. The aerosol spot-spraying nozzle according to claim 1, further comprising a nozzle bracket, wherein a fixing platform for fixing the driving device is extended outwards from the top end of the nozzle bracket, and an avoiding hole for avoiding the mist guide tube is formed in the fixing platform; the spray head support bottom outwards extends has the clamp that is used for fixed spray head module, the clamp side is equipped with the fastener and is used for compressing tightly the spray head module.
8. The aerosol spot fire nozzle of claim 7, wherein the nozzle support is further provided with a limit sensor, and a sensor baffle adapted to the limit sensor is arranged on the outer side of the rotary mist guiding shaft module.
9. The aerosol spot fire nozzle of claim 5, wherein the bottom of the accommodating groove is further provided with a boss, the sealing gasket is provided with a groove matched with the boss, and the height of the sealing gasket is greater than the height of the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074993.8A CN115284747B (en) | 2022-09-02 | 2022-09-02 | Aerosol spot-spraying nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074993.8A CN115284747B (en) | 2022-09-02 | 2022-09-02 | Aerosol spot-spraying nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115284747A CN115284747A (en) | 2022-11-04 |
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