CN115008906A - Aircraft polychrome inkjet printing device - Google Patents
Aircraft polychrome inkjet printing device Download PDFInfo
- Publication number
- CN115008906A CN115008906A CN202210760809.9A CN202210760809A CN115008906A CN 115008906 A CN115008906 A CN 115008906A CN 202210760809 A CN202210760809 A CN 202210760809A CN 115008906 A CN115008906 A CN 115008906A
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- Prior art keywords
- bowl
- shaped piece
- ink box
- liquid storage
- storage cavity
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 34
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 165
- 239000007921 spray Substances 0.000 claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 20
- 239000011550 stock solution Substances 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 12
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 9
- 239000011435 rock Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000007306 turnover Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- 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
- B41J2/21—Ink jet for multi-colour printing
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- 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
-
- 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
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
Abstract
The invention discloses an aircraft multicolor ink-jet printing device, which comprises an unmanned aerial vehicle body and an ink-jet printing device arranged on the unmanned aerial vehicle body; the ink-jet printing device comprises an ink box unit, an ink box base, an air pressure supply unit, a liquid supply pipeline unit, an electric control valve group and a nozzle; the ink box unit is arranged on an ink box base and provided with four independent liquid storage cavities, the liquid supply pipeline unit is vertically arranged at the central axis position of the ink box unit in a penetrating manner, the electric control valve group and the spray head are arranged at the bottom of the ink box base, and the air pressure supply unit is arranged at the top of the ink box unit and used for supplying air pressure to the four liquid storage cavities of the ink box unit; the top of the ink box base is bowl-shaped and has the same radian with the bottom surface of the ink box unit, and a ball is arranged between the ink box base and the bottom surface of the ink box unit. The unmanned aerial vehicle is provided with the ink-jet printing device, and the ink-jet printing device can be used for bearing various coatings and can meet the requirements of multi-color spraying and printing on large areas, non-flat surfaces and special bearing positions.
Description
Technical Field
The invention belongs to the technical field of unmanned aerial vehicles and printers, and particularly relates to an aircraft multicolor ink-jet printing device.
Background
The traditional spray printers are all fixed devices arranged on a desktop or the ground, the volume of a pattern printed by spraying is limited by the size of the spray printer, and if a product with a larger area needs to be printed, the spray printer with a larger specification needs to be configured, so that the flexibility is extremely poor, and the spray requirements on large areas, non-planes and special printing positions (such as the wall surfaces of high-rise buildings) cannot be met.
Patent application with publication number CN 112277309 discloses a flight formula 3D printer, and it uses unmanned aerial vehicle as the carrier, has set up spraying device on unmanned aerial vehicle, accomplishes the spraying operation through control unmanned aerial vehicle's space flight coordinate to can not receive the restriction spraying of spraying device self volume and position to spray and print out the pattern of large tracts of land, irregular surface.
But the spraying device of this patent application only includes an independent coating cylinder, can only realize the spraying of monochromatic/single coating and print, moreover because it is liquid coating to hold dress in the coating cylinder, unmanned aerial vehicle can drive the coating cylinder when carrying out the position and orientation transform aloft and take place the skew, its inside liquid coating can take place to rock, this kind rocks and can lead to the fact the influence to unmanned aerial vehicle's flight stability, and because this kind rocks irregular high frequency and rocks, unmanned aerial vehicle's stable control system is difficult to carry out timely effectual correction. In addition, along with liquid coating's continuous blowout, the focus of coating feed cylinder also is constantly changing, also can cause the influence to unmanned aerial vehicle's flight stability.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an aircraft multicolor ink-jet printing device, which is used for meeting the requirements of multicolor spraying and printing on large areas, non-flat surfaces and special printing positions (such as the wall surfaces of high-rise buildings).
The invention is realized by the following technical scheme:
an aircraft multicolor ink-jet printing device comprises an unmanned aerial vehicle body and an ink-jet printing device arranged on the unmanned aerial vehicle body;
the ink-jet printing device comprises an ink box unit, an ink box base, an air pressure supply unit, a liquid supply pipeline unit, an electric control valve group and a nozzle;
the ink box base is installed at the bottom of the unmanned aerial vehicle body, and the ink box unit is installed on the ink box base;
the ink box unit is provided with four independent liquid storage cavities which are respectively as follows: the liquid storage device comprises a first liquid storage cavity, a second liquid storage cavity, a third liquid storage cavity and a fourth liquid storage cavity, wherein the cross section of the first liquid storage cavity is U-shaped, the cross section of the second liquid storage cavity is U-shaped and is arranged in an area defined by the first liquid storage cavity, the cross section of the third liquid storage cavity is U-shaped and is arranged in an area defined by the second liquid storage cavity, and the fourth liquid storage cavity is arranged in an area defined by the third liquid storage cavity;
the liquid supply pipeline unit vertically penetrates through the central axis of the ink box unit and comprises 4 liquid supply pipes, and the 4 liquid supply pipes are respectively communicated with the 4 liquid storage cavities in a one-to-one correspondence manner;
the electronic control valve group and the spray head are arranged at the bottom of the ink box base, the electronic control valve group comprises 4 electronic control valves, and the electronic control valve group is respectively connected with the bottom liquid outlets of 4 liquid supply pipes of the liquid supply pipeline unit in a one-to-one correspondence manner through hoses and is used for controlling the conduction states of the 4 liquid supply pipes; the outlets of the 4 electric control valves are connected with the spray head;
the air pressure supply unit is arranged at the center of the top of the ink box unit and is used for supplying air pressure to the four liquid storage cavities of the ink box unit;
the top of the ink box base is bowl-shaped and has the same radian with the bottom surface of the ink box unit, and at least one circle of rolling balls are arranged between the ink box base and the bottom surface of the ink box unit.
In the technical scheme, the first liquid storage cavity is formed by enclosing a first bowl-shaped piece and a second bowl-shaped piece, the first bowl-shaped piece comprises a first circular arc bottom surface and a first cylindrical side wall connected to the top edge of the first circular arc bottom surface, the second bowl-shaped piece comprises a second circular arc bottom surface, a second cylindrical side wall connected to the top edge of the second circular arc bottom surface and a first outwards-turned plane connected to the top edge of the second cylindrical side wall, the caliber of the second bowl-shaped piece is smaller than that of the first bowl-shaped piece, the height of the second cylindrical side wall of the second bowl-shaped piece is smaller than that of the first cylindrical side wall of the first bowl-shaped piece, the second bowl-shaped piece is arranged inside the first bowl-shaped piece, the outer edge of the first outwards-turned plane of the second bowl-shaped piece is connected with the top edge of the first cylindrical side wall of the first bowl-shaped piece, and therefore a space between the first bowl-shaped piece and the second bowl-shaped piece forms a first liquid storage cavity with a U-shaped section;
the second liquid storage cavity is formed by enclosing a second bowl-shaped part and a third bowl-shaped part, the third bowl-shaped part consists of a third circular arc bottom surface, a third cylindrical side wall connected to the top edge of the third circular arc bottom surface and a second outer turnover plane connected to the top edge of the third cylindrical side wall, the caliber of the third bowl-shaped part is smaller than that of the second bowl-shaped part, the height of the third cylindrical side wall of the third bowl-shaped part is smaller than that of the second cylindrical side wall of the second bowl-shaped part, the third bowl-shaped part is arranged in the second bowl-shaped part, the outer edge of the second outer turnover plane of the third bowl-shaped part is connected with the top edge of the second cylindrical side wall of the second bowl-shaped part, and therefore a second liquid storage cavity with a U-shaped section is formed in a space between the second bowl-shaped part and the third bowl-shaped part;
the third liquid storage cavity is formed by enclosing a third bowl-shaped piece and a fourth bowl-shaped piece, the fourth bowl-shaped piece is composed of a fourth arc bottom surface, a fourth cylinder side wall connected to the top edge of the fourth arc bottom surface and a third outward turning plane connected to the top edge of the fourth cylinder side wall, the caliber of the fourth bowl-shaped piece is smaller than that of the third bowl-shaped piece, the height of the fourth cylinder side wall of the fourth bowl-shaped piece is smaller than that of the third cylinder side wall of the third bowl-shaped piece, the fourth bowl-shaped piece is arranged in the third bowl-shaped piece, the outer edge of the third outward turning plane of the fourth bowl-shaped piece is connected with the top edge of the third cylinder side wall of the third bowl-shaped piece, and therefore a space between the third bowl-shaped piece and the fourth bowl-shaped piece forms a third liquid storage cavity with a U-shaped section;
the fourth stock solution chamber is enclosed by fourth bowl type spare and the top cap that sets up at fourth bowl type spare top and closes and form.
In the above technical solution, the lengths of the 4 liquid supply tubes are equal.
In the above technical solution, a sealing member is arranged at the position of the bowl-shaped member where the 4 liquid supply pipes penetrate through the liquid storage cavities, the sealing member is in a shape of a circular disc, the 4 liquid supply pipes penetrate and are installed on the sealing member, a through hole for installing the sealing member is arranged at the central position of the bowl-shaped member of each liquid storage cavity, and the sealing member is installed at the central position of the bowl-shaped member in a sealing manner.
In the above technical solution, a through hole for the flexible tube to pass through is provided on the cartridge base, and the aperture of the through hole is larger than the sum of the diameters of all flexible tubes, through which the root liquid supply tube can be connected to the corresponding electric control valve through the flexible tube, and due to the flexible tube, the cartridge unit has the capability of relative displacement on the cartridge base.
In above-mentioned technical scheme, be provided with the landing leg on ink horn base or the unmanned aerial vehicle body.
In above-mentioned technical scheme, the top of landing leg is for articulated installation to be connected with the micro motor transmission, drive the landing leg and pack up after unmanned aerial vehicle takes off.
In the technical scheme, the spray head is arranged downwards and used for spraying and printing a horizontal printing surface.
In the technical scheme, the spray heads are arranged towards the side face, the bottom of the ink box base is provided with the transverse support rod, and the spray heads are arranged at the outer ends of the support rods, so that the positions of the spray heads exceed the side part of the unmanned aerial vehicle body; the other end of the nozzle of the support rod is provided with a balance weight, so that the center of gravity of the support rod is positioned on the central axis of the ink box unit.
The invention has the advantages and beneficial effects that:
the unmanned aerial vehicle is used as a carrier, the inkjet printing device is mounted on the unmanned aerial vehicle, and the inkjet printing device can be used for bearing various different coatings, so that the requirements of multicolor spraying and printing on large areas, non-planes and special printing positions (such as the wall surfaces of high-rise buildings) can be met.
The ink box unit of the ink-jet printing device of the invention is provided with four independent liquid storage cavities for bearing different colors/types of coatings, and the combined structure of the four liquid storage cavities is specially designed (the combined structure design that the U-shaped liquid storage cavities are nested layer by layer is adopted), the shaking of the liquid in each liquid storage cavity can be reduced (because the cross section of the liquid storage cavity is U-shaped, namely the upper position of the central part of the liquid storage cavity is provided with a barrier which is formed by the bottom surface of the liquid storage cavity of the previous layer, compared with the traditional straight-tube liquid storage container, the U-shaped liquid storage cavity can effectively reduce the impact force when the liquid shakes because the upper position of the central part is provided with the barrier), and no matter which kind of coating quantity changes, can guarantee that the focus of ink horn unit is located the axis of centre of ink horn unit all the time, this should have very big help to aircraft's stability.
The liquid supply pipeline unit is arranged on the central axis of the ink box unit in a penetrating mode, and the lengths of the 4 liquid supply pipes of the liquid supply pipeline unit are equal, so that the gravity center position of the liquid supply pipeline unit is ensured to be on the central axis of the ink box unit (if the lengths of the 4 liquid supply pipes are different, the gravity center position of the liquid supply pipeline unit deviates from the central axis of the ink box unit).
The top of the ink box base is bowl-shaped and has the same radian with the bottom surface of the ink box unit, and at least one circle of rolling balls are arranged between the ink box base and the bottom surface of the ink box unit; because ink horn base top surface and ink horn unit bottom surface are the bowl type (being the circular arc end) to set up the ball between the two, consequently, at unmanned aerial vehicle flight in-process, when the unmanned aerial vehicle fuselage takes place the incline, under ink horn unit self action of gravity, the ink horn unit can carry out self-adaptation adjustment, keeps the steady state of self, thereby effectively reduces or avoids the liquid in the ink horn unit to rock, causes the influence to unmanned aerial vehicle's flight stability.
The invention is provided with a through hole for the flexible pipe to pass through on the ink box base, the aperture of the through hole is larger than the sum of the diameters of all flexible pipes, 4 liquid supply pipes can be connected to the corresponding electric control valves through the flexible pipes through the through hole, and the ink box unit can have the capability of relative displacement on the ink box base due to the flexible pipes.
Drawings
Fig. 1 is a schematic view of the overall structure of an aircraft multicolor inkjet printing apparatus of the present invention (with the heads facing down).
Fig. 2 is a schematic view of the structure of the ink jet printing apparatus in the present invention.
Fig. 3 is a schematic top view of the ink jet printing apparatus according to the present invention.
Fig. 4 is a schematic view of the overall structure of the aircraft multicolor inkjet printing apparatus of the present invention (with the heads facing the side).
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the present invention is further described below with reference to specific examples.
Referring to the drawings, an aircraft multicolor ink-jet printing device comprises an unmanned aerial vehicle body 1 and an ink-jet printing device arranged on the unmanned aerial vehicle body.
The ink-jet printing device comprises an ink box unit 2, an ink box base 3, an air pressure supply unit 4, a liquid supply pipeline unit 5, an electric control valve group 6 and a spray head 7.
The ink box unit 2 is provided with four independent liquid storage cavities, which are respectively: first stock solution chamber 2.1, second stock solution chamber 2.1, third stock solution chamber 2.3, fourth stock solution chamber 2.4, the cross-section in first stock solution chamber is the U type, the cross-section in second stock solution chamber is the U type and sets up the region that encloses at first stock solution chamber, the cross-section in third stock solution chamber is the U type and sets up the region that encloses at second stock solution chamber, the fourth stock solution chamber sets up the region that encloses at third stock solution chamber.
Specifically speaking: the first liquid storage cavity 2.1 is formed by enclosing a first bowl-shaped part 2.5 and a second bowl-shaped part 2.6, the first bowl-shaped part 2.5 consists of a first circular arc bottom surface 2.51 and a first cylindrical side wall 2.52 connected to the top edge of the first circular arc bottom surface, the second bowl-shaped part 2.6 consists of a second circular arc bottom surface 2.61, a second cylindrical side wall 2.62 connected to the top edge of the second circular arc bottom surface and a first outward-turning plane 2.63 connected to the top edge of the second cylindrical side wall, the caliber of the second bowl-shaped part is smaller than that of the first bowl-shaped part (namely, the diameter of the second cylindrical side wall of the second bowl-shaped part is smaller than that of the first cylindrical side wall of the first bowl-shaped part), the height of the second cylindrical side wall of the second bowl-shaped part is smaller than that of the first cylindrical side wall of the first bowl-shaped part, the second bowl-shaped part is arranged inside the first outward-shaped part, so that the outer edge of the first plane 2.63 of the second bowl-shaped part is connected with the top edge of the first cylindrical side wall 2.52 of the first bowl-shaped part, so that the space between the first bowl-shaped part and the second bowl-shaped part forms a first liquid storage cavity 2.1 with a U-shaped section.
The second liquid storage cavity is formed by enclosing a second bowl-shaped part 2.6 and a third bowl-shaped part 2.7, the third bowl-shaped part 2.7 is composed of a third arc bottom surface 2.71, a third cylinder side wall 2.72 connected to the top edge of the third arc bottom surface and a second outer turnover plane 2.73 connected to the top edge of the third cylinder side wall, the caliber of the third bowl-shaped part is smaller than that of the second bowl-shaped part (namely the diameter of the third cylinder side wall of the third bowl-shaped part is smaller than that of the second cylinder side wall of the second bowl-shaped part), the height of the third cylinder side wall of the third bowl-shaped part is smaller than that of the second cylinder side wall of the second bowl-shaped part, the third bowl-shaped part is arranged inside the second bowl-shaped part, and the outer edge of the second outer turnover plane 2.73 of the third bowl-shaped part is connected with the top edge of the second cylinder side wall 2.62 of the second bowl-shaped part, so that the space between the second bowl-shaped part and the third bowl-shaped part forms the second liquid storage cavity 2.2.2.7 with a U-shaped part.
The third liquid storage cavity is formed by enclosing a third bowl-shaped piece 2.7 and a fourth bowl-shaped piece 2.8, the fourth bowl-shaped piece 2.8 is composed of a fourth circular arc bottom surface 2.81, a fourth cylindrical side wall 2.82 connected to the top edge of the fourth circular arc bottom surface and a third outwards-turned plane 2.83 connected to the top edge of the fourth cylindrical side wall, the caliber of the fourth bowl-shaped piece is smaller than the caliber of the third bowl-shaped piece (namely the diameter of the fourth cylindrical side wall of the fourth bowl-shaped piece is smaller than that of the third cylindrical side wall of the third bowl-shaped piece), the height of the fourth cylindrical side wall of the fourth bowl-shaped piece is smaller than that of the third cylindrical side wall of the third bowl-shaped piece, the fourth bowl-shaped piece is arranged inside the third bowl-shaped piece, and the outer edge of the third outwards-turned plane 2.83 of the fourth bowl-shaped piece is connected with the top edge of the third cylindrical side wall 2.72 of the third bowl-shaped piece, so that the space between the third bowl-shaped piece and the fourth bowl-shaped piece forms a U-shaped third liquid storage cavity 2.3.
The fourth stock solution chamber is enclosed by fourth bowl type spare 2.8 and the top cap 2.9 that sets up at fourth bowl type spare top and closes and form.
The liquid supply pipeline unit 5 vertically penetrates through the central axis position of the ink box unit 2, and the liquid supply pipeline unit 5 comprises 4 liquid supply pipes: a first supply tube 5.1, a second supply tube 5.2, a third supply tube 5.3 and a fourth supply tube 5.4; the first liquid supply pipe is provided with a liquid inlet communicated with the first liquid storage cavity, the second liquid supply pipe is provided with a liquid inlet communicated with the second liquid storage cavity, the third liquid supply pipe is provided with a liquid inlet communicated with the third liquid storage cavity, and the fourth liquid supply pipe is provided with a liquid inlet communicated with the fourth liquid storage cavity, so that liquid in each liquid storage cavity can be respectively discharged along the corresponding liquid supply pipe; furthermore, a liquid inlet on the first liquid supply pipe is positioned at the bottom of the first liquid storage cavity, a liquid inlet on the second liquid supply pipe is positioned at the bottom of the second liquid storage cavity, a liquid inlet on the third liquid supply pipe is positioned at the bottom of the third liquid storage cavity, and a liquid inlet on the fourth liquid supply pipe is positioned at the bottom of the fourth liquid storage cavity; further, the lengths of the 4 liquid supply tubes are equal, so as to ensure that the gravity center position of the liquid supply pipeline unit is on the central axis of the ink box unit (if the lengths of the 4 liquid supply tubes are different, the gravity center position of the liquid supply pipeline unit is deviated from the central axis of the ink box unit); further, a sealing member m is arranged at the position of the bowl-shaped member where the 4 liquid supply pipes penetrate through the liquid storage cavities, so as to ensure the space independence between the liquid storage cavities, that is, referring to fig. 3, the sealing member m is in a shape of a circular slice, the 4 liquid supply pipes are installed on the sealing member in a penetrating way (that is, 4 through holes for installing the liquid supply pipes are arranged on the sealing member, the liquid supply pipes are installed in the through holes in a penetrating way, and a sealing glue is arranged between the through holes and the liquid supply pipes, so as to ensure the sealing property), and the through holes for installing the sealing member are arranged at the central position of the bowl-shaped member of each liquid storage cavity, and the sealing member is installed at the central position of the bowl-shaped member in a sealing way.
A support 9 is arranged at the bottom of the ink box base 3, the electric control valve group 6 and the spray head 7 are installed on the support 9, and the electric control valve group 6 comprises 4 electric control valves: the first electric control valve, the second electric control valve, the third electric control valve and the fourth electric control valve are respectively connected with bottom liquid outlets of 4 liquid supply pipes of the liquid supply pipeline unit in a one-to-one correspondence mode through hoses 11 and are used for controlling the conduction states of the 4 liquid supply pipes, namely, a bottom outlet of the first liquid supply pipe is connected with an inlet of the first electric control valve through the first hose, a bottom outlet of the second liquid supply pipe is connected with an inlet of the second electric control valve through the second hose, a bottom outlet of the third liquid supply pipe is connected with an inlet of the third electric control valve through the third hose, and a bottom outlet of the fourth liquid supply pipe is connected with an inlet of the fourth electric control valve through the fourth hose; the outlets of the 4 electric control valves are connected with a spray head 7, and the liquid is finally atomized and sprayed out from the spray head 7.
The air pressure supply unit 4 is used for supplying air pressure to the four liquid storage cavities of the ink box unit, so that after the corresponding electric control valves of the 4 liquid supply pipes are opened, liquid in the corresponding liquid storage cavities is sprayed out from the spray heads along the corresponding liquid supply pipes. The air pressure supply unit adopts an air pump, the air pump is arranged at the center of the top of the ink box unit, so that the gravity center of the air pump is positioned on the central axis of the ink box unit, and the air outlet of the air pump is communicated with the four liquid storage cavities of the ink box unit through branch pipelines.
The top of the ink box base 3 is bowl-shaped and has the same radian with the bottom surface of the ink box unit, and at least one circle of balls 10 are arranged between the ink box base and the bottom surface of the ink box unit (the top surface of the ink box base is provided with a groove for mounting the balls, and the balls are mounted in the groove through a ball retainer); because ink horn base top surface and ink horn unit bottom surface are the bowl type (be the circular arc end) to set up the ball between the two, consequently, at unmanned aerial vehicle flight in-process, when the unmanned aerial vehicle fuselage takes place the incline, under ink horn unit self action of gravity, the ink horn unit can carry out self-adaptation adjustment, keeps the steady state of self, thereby effectively reduces or avoids the liquid in the ink horn unit to rock, causes the influence to unmanned aerial vehicle's flight stability.
Furthermore, a through hole 12 is provided on the cartridge base 3 for the flexible tube to pass through, and the diameter of the through hole 12 is larger than the sum of the diameters of all the flexible tubes, through which the 4 liquid supply tubes can be connected to the corresponding electric control valves through the flexible tubes, and because of the flexible tubes, the cartridge unit 2 can have the capability of relative displacement on the cartridge base 3 (if the liquid supply tubes and the electric control valves are directly connected, which is equivalent to a rigid integral connection structure, the relative displacement between the cartridge unit 2 and the cartridge base 3 cannot occur, and the cartridge unit 2 cannot be adaptively adjusted to maintain the self stable state).
Further say, be provided with landing leg 13 on ink horn base 3 or the unmanned aerial vehicle body, further say that, the top of landing leg 13 is articulated the installation to be connected with the micro motor transmission, drive landing leg 13 and pack up after unmanned aerial vehicle takes off.
Furthermore, the spray head 7 can be arranged downwards (fig. 1) and is used for spraying and printing a horizontal printing surface; or the shower nozzle also can set up towards the side (fig. 4), need set up horizontal bracing piece 14 in ink horn base 3 bottom this moment, install shower nozzle 7 in the bracing piece outer end to the lateral part that makes the position of shower nozzle exceed the unmanned aerial vehicle body, during operation like this, the shower nozzle can spout the seal to vertical face of bearing, and the unmanned aerial vehicle body can not bump with the face of bearing. Further, a weight 15 is provided at the other end of the head of the support rod so that the center of gravity of the support rod is located on the center axis of the ink cartridge unit.
During operation, the four liquid storage cavities of the ink box unit 2 are respectively filled with paint/ink with different colors, and the flight track and the coordinates of the unmanned aerial vehicle are controlled to control the four electric control valves in combination, so that the jet printing of large-area, non-planar and multicolor patterns is completed (in the jet printing process, the air pressure supply unit 4 needs to be opened, and air pressure is supplied to the four liquid storage cavities of the ink box unit).
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of upper and lower. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (10)
1. An aircraft multi-color inkjet printing apparatus, characterized by: the unmanned aerial vehicle comprises an unmanned aerial vehicle body and an ink-jet printing device arranged on the unmanned aerial vehicle body;
the ink-jet printing device comprises an ink box unit, an ink box base, an air pressure supply unit, a liquid supply pipeline unit, an electric control valve group and a nozzle;
the ink box base is installed at the bottom of the unmanned aerial vehicle body, and the ink box unit is installed on the ink box base;
the ink box unit is provided with four independent liquid storage cavities which are respectively as follows: the liquid storage device comprises a first liquid storage cavity, a second liquid storage cavity, a third liquid storage cavity and a fourth liquid storage cavity, wherein the cross section of the first liquid storage cavity is U-shaped, the cross section of the second liquid storage cavity is U-shaped and is arranged in an area defined by the first liquid storage cavity, the cross section of the third liquid storage cavity is U-shaped and is arranged in an area defined by the second liquid storage cavity, and the fourth liquid storage cavity is arranged in an area defined by the third liquid storage cavity;
the liquid supply pipeline unit vertically penetrates through the central axis of the ink box unit and comprises 4 liquid supply pipes, and the 4 liquid supply pipes are respectively communicated with the 4 liquid storage cavities in a one-to-one correspondence manner;
the electronic control valve group and the spray head are arranged at the bottom of the ink box base, the electronic control valve group comprises 4 electronic control valves, and the electronic control valves are respectively connected with the bottom liquid outlets of 4 liquid supply pipes of the liquid supply pipeline unit in a one-to-one correspondence mode through hoses and are used for controlling the conduction states of the 4 liquid supply pipes; the outlets of the 4 electric control valves are connected with the spray head;
the air pressure supply unit is arranged at the center of the top of the ink box unit and is used for supplying air pressure to the four liquid storage cavities of the ink box unit;
the top of the ink box base is bowl-shaped and has the same radian with the bottom surface of the ink box unit, and at least one circle of rolling balls are arranged between the ink box base and the bottom surface of the ink box unit.
2. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the first liquid storage cavity is formed by enclosing a first bowl-shaped piece and a second bowl-shaped piece, the first bowl-shaped piece is composed of a first circular arc bottom surface and a first cylindrical side wall connected to the top edge of the first circular arc bottom surface, the second bowl-shaped piece is composed of a second circular arc bottom surface, a second cylindrical side wall connected to the top edge of the second circular arc bottom surface and a first outwards-turned plane connected to the top edge of the second cylindrical side wall, the caliber of the second bowl-shaped piece is smaller than that of the first bowl-shaped piece, the height of the second cylindrical side wall of the second bowl-shaped piece is smaller than that of the first cylindrical side wall of the first bowl-shaped piece, the second bowl-shaped piece is arranged inside the first bowl-shaped piece, the outer edge of the first outwards-turned plane of the second bowl-shaped piece is connected with the top edge of the first cylindrical side wall of the first bowl-shaped piece, and therefore a first liquid storage cavity with a U-shaped section is formed in the space between the first bowl-shaped piece and the second bowl-shaped piece;
the second liquid storage cavity is formed by enclosing a second bowl-shaped piece and a third bowl-shaped piece, the third bowl-shaped piece is composed of a third arc bottom surface, a third cylindrical side wall connected to the top edge of the third arc bottom surface and a second outer turning plane connected to the top edge of the third cylindrical side wall, the caliber of the third bowl-shaped piece is smaller than that of the second bowl-shaped piece, the height of the third cylindrical side wall of the third bowl-shaped piece is smaller than that of the second cylindrical side wall of the second bowl-shaped piece, the third bowl-shaped piece is arranged in the second bowl-shaped piece, the outer edge of the second outer turning plane of the third bowl-shaped piece is connected with the top edge of the second cylindrical side wall of the second bowl-shaped piece, and therefore a second liquid storage cavity with a U-shaped section is formed in the space between the second bowl-shaped piece and the third bowl-shaped piece;
the third liquid storage cavity is formed by enclosing a third bowl-shaped piece and a fourth bowl-shaped piece, the fourth bowl-shaped piece is composed of a fourth arc bottom surface, a fourth cylinder side wall connected to the top edge of the fourth arc bottom surface and a third outward turning plane connected to the top edge of the fourth cylinder side wall, the caliber of the fourth bowl-shaped piece is smaller than that of the third bowl-shaped piece, the height of the fourth cylinder side wall of the fourth bowl-shaped piece is smaller than that of the third cylinder side wall of the third bowl-shaped piece, the fourth bowl-shaped piece is arranged in the third bowl-shaped piece, the outer edge of the third outward turning plane of the fourth bowl-shaped piece is connected with the top edge of the third cylinder side wall of the third bowl-shaped piece, and therefore a space between the third bowl-shaped piece and the fourth bowl-shaped piece forms a third liquid storage cavity with a U-shaped section;
the fourth stock solution chamber is enclosed by fourth bowl type spare and the top cap that sets up at fourth bowl type spare top and closes and form.
3. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the lengths of the 4 supply tubes are equal.
4. The aircraft multicolor inkjet printing apparatus according to claim 3 wherein: the sealing element is arranged at the position of the bowl-shaped element of which the 4 liquid supply pipes penetrate through each liquid storage cavity, the sealing element is in a circular sheet shape, the 4 liquid supply pipes penetrate through the sealing element, the center position of the bowl-shaped element of each liquid storage cavity is provided with a through hole for installing the sealing element, and the sealing element is hermetically arranged at the center position of the bowl-shaped element.
5. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the ink box base is provided with a through hole for the flexible pipe to pass through, the diameter of the through hole is larger than the sum of the diameters of all the flexible pipes, the through hole can enable the liquid supply pipe to be connected to the corresponding electric control valve through the flexible pipe, and the ink box unit has the capability of relative displacement on the ink box base.
6. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the landing leg is arranged on the ink box base or the unmanned aerial vehicle body.
7. The aircraft multicolor inkjet printing apparatus according to claim 6 wherein: the top of landing leg is articulated the installation to be connected with the micro motor transmission, drive the landing leg and pack up after unmanned aerial vehicle takes off.
8. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the spray head is arranged downwards and is used for spraying and printing a horizontal printing surface.
9. The aircraft multicolor inkjet printing apparatus according to claim 1 wherein: the shower nozzle sets up towards the side, sets up horizontal bracing piece in ink horn base bottom, installs the shower nozzle in the bracing piece outer end, makes the position of shower nozzle exceed the lateral part of unmanned aerial vehicle body.
10. The aircraft multicolor inkjet printing apparatus according to claim 9 wherein: the other end of the nozzle of the support rod is provided with a balance weight, so that the center of gravity of the support rod is positioned on the central axis of the ink box unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210760809.9A CN115008906B (en) | 2022-06-30 | 2022-06-30 | Aircraft polychrome inkjet printing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210760809.9A CN115008906B (en) | 2022-06-30 | 2022-06-30 | Aircraft polychrome inkjet printing device |
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| CN115008906A true CN115008906A (en) | 2022-09-06 |
| CN115008906B CN115008906B (en) | 2023-03-24 |
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| CN116587608A (en) * | 2023-04-17 | 2023-08-15 | 南京航空航天大学 | Ink supply system for sand mould additive manufacturing multi-adhesive system and control method |
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|---|---|
| CN115008906B (en) | 2023-03-24 |
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