CN115431514A - Device for realizing ink mixing electronic injection printing - Google Patents

Device for realizing ink mixing electronic injection printing Download PDF

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Publication number
CN115431514A
CN115431514A CN202210958981.5A CN202210958981A CN115431514A CN 115431514 A CN115431514 A CN 115431514A CN 202210958981 A CN202210958981 A CN 202210958981A CN 115431514 A CN115431514 A CN 115431514A
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China
Prior art keywords
mixer
ink solution
toothed
tooth
shaped
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CN202210958981.5A
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Chinese (zh)
Inventor
李娜
李凯
骆立锋
宋博洋
王晓英
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Ningbo University
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Ningbo University
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Priority to CN202210958981.5A priority Critical patent/CN115431514A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245—Platforms or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/255—Enclosures for the building material, e.g. powder containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling

Abstract

The invention belongs to the technical field of advanced manufacturing, and provides a device for realizing electronic jet printing of ink mixture, which realizes high mixing in the ink conveying process and forms stable jet flow. The ink solution firstly passes through the annular flow sensor, then is sucked into the precise delivery pipe, then is sent into the toothed pipe type mixer, flows through the toothed blade and the arc splitter blade of the toothed pipe type mixer, is primarily mixed, enters the spiral pipe type mixer through valve control, utilizes the centrifugal force field generated by the flowing liquid in the curved pipeline to realize further uniform mixing of the ink solution, and finally, the mixed ink is printed through electronic injection. The electronic injection printing device has the advantages of simple structure, low cost, difficult needle blockage and the like.

Description

Device for realizing ink mixed electronic injection printing
Technical Field
The invention belongs to the technical field of advanced manufacturing, and relates to a device for realizing ink-mixed electronic-jet printing.
Background
With the development of micro-nano technology, micro-nano products are gradually popularized in daily life, and the life of people is influenced and changed. With the continuous improvement of the requirements on micro-nano products, the printing technology has unique advantages and plays an important role in the field of micro-nano manufacturing. However, research on the current multi-note re-mechanism and new method by research personnel has less attention to ink transportation in the printing process. The ink solution delivery process is also not negligible and is critical to print quality. In a conventional electrospray printing process, the ink solution is transported directly from a delivery tube to a needle. In the process of conveying the ink solution from the storage container to the spray needle, the ink solution needs to flow through a long conveying pipe, agglomeration and precipitation are generated in the conveying pipe certainly due to objective factors such as density, gravity, particle surface tension and the like of the ink solution, uneven ink solution is mixed, the number of particles contained in a unit volume is uneven, the number of particles contained in the unit volume is unequal, and therefore the problems that the nano solution with the same volume is subjected to different electric field forces in an electric field to induce unstable jet flow, the printing line width is uneven, the dielectric constant fluctuation is large and the like are caused, and the printing micro-nano structure and the performance of devices are low are caused.
Disclosure of Invention
The invention aims to overcome the technical defects and invents a device for realizing ink mixed electronic injection printing. Firstly, the ink solution stored in a sealed storage tank is sucked into a delivery pipe by providing power through a transmission pump, before flowing into the delivery pipe, the ink solution firstly passes through an annular flow sensor, the annular flow sensor detects the flow of the ink solution in the delivery pipe, and the flow of the ink solution is timely controlled through the transmission pump after data feedback, so that the stability and the uniformity of electronic injection printing are kept. Then the ink solution is conveyed into a toothed pipe type mixer by a conveying pipe, when the ink solution flows through toothed blades of the toothed pipe type mixer, the ink solution and the toothed blades form impact, the ink solution is primarily mixed and precipitated after first-step transportation, then the ink solution flows through an arc splitter blade, the arc splitter blade divides the water flow into a left water flow and a right water flow, the left water flow surrounds the left arc splitter blade to form an anticlockwise water flow and flows down along a smooth arc partition plate of the lower half part, the right water flow surrounds the right arc splitter blade to form a clockwise water flow, the clockwise water flow flows down along the smooth arc partition plate of the lower half part and is mixed with the anticlockwise water flow of the left side, then the left water flow flows through the toothed blades at the lower end of the toothed pipe type mixer and then flows out of two toothed mixer outlets, the two toothed mixer outlets divide the water flow into two water flows, one flow flows through the toothed mixer outlet with a valve and horizontally enters a spiral mixer, the other flow is unimpeded, and vertically flows into the spiral mixer without the outlet of the toothed pipe type mixer to form two water flows with different speeds, and a centrifugal flow field generated by the flowing liquid in a curved pipeline is used for further uniform mixing of the ink solution. And finally, the conductive spray needle clamp and the cavity spray needle move to a proper position on a Z axis to form a certain height with the substrate, a variable power supply is switched on, different voltages from dozens of volts to thousands of volts are generated according to requirements, an electric field is formed between the outer surface of the cavity spray needle and the substrate through the conductive spray needle clamp, the ink solution is electrified and mutually attracted with a moving substrate connected with the ground to form stable nano jet flow, the moving substrate and the substrate move in a plane according to requirements to receive the jetted nano jet flow, and finally, a finished product is printed on the substrate. The device has the advantages of simple structure, low cost and the like.
The conveying monitoring module comprises a sealed storage tank, an ink solution, an annular flow sensor, a precise conveying pipe and a conveying pump; the sealed storage tank is used for storing ink solution and is connected with the precision conveying pipe; the transmission pump provides power for the ink solution, and the ink solution with a certain demand is sucked into the precision delivery pipe through the annular flow sensor; the annular flow sensor is fixed on the outer ring of the precision delivery pipe and is arranged in front of the delivery pump, and the annular flow sensor is positioned above the sealed storage tank and is 10-100 cm away from the port of the sealed storage tank; the ink solution is sucked into the precise delivery pipe from the sealed storage tank, then flows through the annular flow sensor and then flows through the transfer pump;
the tubular mixer module comprises a tooth-shaped tubular mixer, tooth-shaped blades, arc splitter blades, a valve, a tooth-shaped mixer outlet I, a tooth-shaped mixer outlet II, a spiral mixer inlet I, a spiral mixer inlet II, a spiral tubular mixer and a cavity spray needle; the toothed pipe type mixer consists of toothed blades and arc splitter blades, the toothed blades are positioned at the upper end and the lower end of the toothed pipe type mixer, and the arc splitter blades are positioned in the middle of the toothed pipe type mixer; the lower end of the tooth-shaped tubular mixer is provided with a tooth-shaped mixer outlet I and a tooth-shaped mixer outlet II which are connected with the spiral tubular mixer; the tooth-shaped blades are uniformly distributed at the upper end and the lower end of the tooth-shaped tubular mixer, and a tooth-shaped blade contained on the left side and a tooth-shaped blade contained on the right side form a unit grid together; the arc splitter blade is positioned in the middle of the toothed tubular mixer, between the upper and lower toothed blades, the upper half part is formed by connecting two symmetrical three-quarters circles, and the lower half part is formed by two smooth arc partition plates; the valve is arranged at the outlet I of the tooth-shaped mixer and is connected with the inlet I of the spiral mixer; the outlet II of the tooth-shaped mixer is directly connected with the inlet II of the spiral mixer without any blocking device; the upper end of the spiral tube type mixer comprises a horizontal spiral mixer inlet I and a vertical spiral mixer inlet II, the section of a main flow passage of the spiral tube type mixer is in an oval shape, and a section of the Z-shaped spiral tube type mixer is a cell;
the spray printing motion module comprises a variable power supply, a Z-direction moving shaft, a conductive spray needle clamp, jet flow, a substrate and a motion base plate; the variable power supply can form voltage of dozens of volts to thousands of volts according to the requirement, and an electric power field is formed between the outer surface of the cavity spray needle and the substrate through the conductive spray needle clamp to form stable jet flow; the Z-direction moving shaft is connected with the conductive spray needle clamp, so that the conductive spray needle clamp and the cavity spray needle move smoothly on the Z axis; the conductive spray needle fixture is positioned in the middle of the cavity spray needle and is connected with the cavity spray needle and the Z-direction moving shaft; the moving base plate is tightly attached to the ground connected below the substrate, and moves forwards, backwards, leftwards and rightwards as required, so that the jet flow can print different shapes on the substrate;
in order to solve the above technical problems, the device for realizing ink-mixing electrospray printing provided by the present invention is implemented, and the steps are as follows:
first, the ink solution is transferred to a tube mixer
The ink solution is stored in the sealed storage tank, the transmission pump provides power to enable a certain amount of ink solution to be sucked into the precision conveying pipe, the ink solution firstly passes through the annular flow sensor before flowing into the precision conveying pipe, the annular flow sensor detects the flow of the ink solution in the precision conveying pipe, the flow of the ink solution is controlled by the transmission pump in time after data feedback, the problem that the flow is unstable due to too much or too little solution in the precision conveying pipe is avoided, and the stability and the uniformity of the electronic jet printing are kept;
secondly, the ink solution is fully mixed in the conveying process by using a toothed tube type mixer and a spiral mixer
The precise conveying pipe conveys the ink solution to the toothed tube type mixer, the ink solution firstly flows through the toothed blades of 3 unit grids at the upper end of the toothed tube type mixer, the ink solution and the toothed blades form impact, the ink solution which is caused by the primary mixing after the primary transportation is precipitated and then flows through the arc splitter blades, the arc splitter blades divide the water flow into a left water flow and a right water flow, the left water flow surrounds the arc splitter blade at the left side to form an anticlockwise water flow and flows down along the smooth arc partition plate at the lower half, the right water flow surrounds the arc splitter blade at the right side to form a clockwise water flow, the clockwise water flow flows down along the smooth arc partition plate at the lower half and is in opposite impact and mixing with the anticlockwise water flow at the left side, then the ink solution flows through the toothed blades of 3 unit grids at the lower end of the toothed tube type mixer to prepare for flowing out of the toothed tube type mixer, and flows through an outlet I and an outlet II of the toothed mixer when flowing out, the tooth-shaped mixer outlet I and the tooth-shaped mixer outlet II divide water flow into two parts, one part flows through the tooth-shaped mixer outlet I which is provided with a valve, the size of the valve can be adjusted according to needs to adapt to different types of ink solutions to form ink solutions with different flow rates, the ink solutions horizontally enter the spiral mixer inlet I, the other part flows through the tooth-shaped mixer outlet II and vertically flow into the spiral mixer inlet II without obstruction, the two parts of water flow through the tooth-shaped mixer outlet I and are limited by the valve, the two parts of water flow through the tooth-shaped mixer outlet II are not obstructed, finally two parts of water flow with different speeds are formed and are converged into a spiral pipe type mixer, two parts of water flow with different speeds generated by the same type of ink solution flow through the spiral pipe type mixers with 4 unit lattices, and a centrifugal force field generated by flowing liquid in a curve pipeline in the spiral pipe type mixer generates secondary flow, the ink solution is further uniformly mixed;
thirdly, printing the ink solution after being uniformly mixed to obtain a finished product
Conductive nozzle needle anchor clamps and cavity nozzle needle move to suitable position on the Z axle, form a take the altitude with the substrate, turn on variable power supply, produce tens of volts to the unequal voltage of thousands of volts according to the demand, voltage makes to form the electric power field between cavity nozzle needle surface and the substrate through conductive nozzle needle anchor clamps, make ink solution electrified, with the motion base plate inter attraction who connects ground, forming stable nanometer efflux, as required, the motion base plate moves in the plane together with the substrate, accept the nanometer efflux that jets out, finally print the finished product on the substrate.
The beneficial effects of the invention are as follows: a device for realizing ink mixed electrospray printing realizes high mixing of ink solution and forms stable jet flow. The ink solution stored in the sealed storage tank is powered by the transmission pump, and the ink solution with a certain required amount firstly passes through the annular flow sensor and then is sucked into the precise delivery pipe. Then the conveying pipe conveys the ink solution to a tooth-shaped pipe type mixer, the ink solution flows through a tooth-shaped blade and an arc-shaped splitter blade of the tooth-shaped pipe type mixer, the ink solution is preliminarily mixed, two water flows are formed, the water flows with different speeds enter a spiral pipe type mixer through valve control, a centrifugal force field generated by flowing liquid in a curve pipeline is utilized in the spiral pipe type mixer to generate secondary flow, and the ink solution is further uniformly mixed. And finally, moving the conductive spray needle clamp and the cavity spray needle to proper positions on a Z axis, switching on a variable power supply, adding voltage to form stable nano jet flow, and finally printing a finished product on the substrate. The annular flow sensor can detect the flow of the ink solution in the conveying pipe, and the flow of the ink solution is controlled by the conveying pump in time, so that the stability and the uniformity of electronic injection printing are kept; the tooth-shaped blade in the tooth-shaped tube type mixer enables the ink solution to impact the tooth-shaped blade, the arc-shaped splitter blade divides the water flow into a left water flow and a right water flow which are different in rotation direction, the two water flows are opposite-impacted, the two water flows are further uniformly mixed, and finally stable jet flow is formed to print a finished product. The electronic injection printing device has the advantages of simple structure, obvious effect, good mixing effect and the like.
Drawings
Fig. 1 is a schematic diagram of an apparatus for performing ink-mixing electrospray printing in an embodiment of the present invention.
FIG. 2 is a schematic view of a toothed tube type mixer apparatus in an embodiment of the present invention.
FIG. 3 is a schematic view of a spiral tube-type mixer apparatus in an embodiment of the present invention.
In the figure: the device comprises a sealed storage tank 1, an ink solution 2, an annular flow sensor 3, a precise delivery pipe 4, a transmission pump 5, a toothed tube type mixer 6, a toothed blade 7, an arc splitter blade 8, a variable power supply 9, a valve 10, a toothed mixer outlet I11, a toothed mixer outlet II12, a spiral mixer inlet I13, a spiral mixer inlet II14, a spiral tube type mixer 15, a moving shaft in the 16Z direction, a spiral tube type mixer 17, a spray needle 18 with a cavity, a nano jet, a substrate 20 and a moving substrate 21.
Detailed Description
The following detailed description of the embodiments of the invention refers to the accompanying drawings. See fig. 1-3.
The embodiment discloses a device for realizing ink mixing electronic injection printing, which mainly comprises a conveying monitoring module, a tube type mixer module and an injection printing movement module. Firstly, the ink solution stored in a sealed storage tank is powered by a transmission pump, passes through an annular flow sensor and is sucked into a delivery pipe; then the conveying pipe conveys the ink solution to a toothed pipe type mixer, the ink solution flows through a toothed blade and an arc-shaped splitter blade of the toothed pipe type mixer, the ink solution is preliminarily mixed, two water flows are formed, the water flows with different speeds enter a spiral pipe type mixer through valve control, a centrifugal force field generated by flowing liquid in a curved pipeline is utilized to generate secondary flow, and the ink solution is further uniformly mixed; and finally, moving the conductive spray needle clamp and the cavity spray needle to proper positions on a Z axis, switching on a variable power supply, adding voltage to form stable nano jet flow, and finally printing a finished product on the substrate.
Specifically, in this example, the delivery monitoring module includes a sealed storage tank 1, an ink solution 2, an annular flow sensor 3, a precision delivery pipe 4, and a transfer pump 5; the tubular mixer module comprises a tooth-shaped tubular mixer 6, a tooth-shaped blade 7, an arc splitter blade 8, a valve 10, a tooth-shaped mixer outlet I11, a tooth-shaped mixer outlet II12, a spiral mixer inlet I13, a spiral mixer inlet II14, a spiral tubular mixer 15 and a cavity spray needle 18; the jet printing motion module comprises a variable power supply 9, a Z-direction moving shaft 16, a conductive spray needle clamp 17, a nano jet 19, a substrate 20 and a motion base plate 21. The annular flow sensor 3 is fixed on the outer ring of the precise delivery pipe 4, is arranged in front of the transfer pump 5 and is close to the sealed storage tank 1, and the flow of the ink solution 2 sucked by the transfer pump 5 is detected at the position of 20-30 cm. The sealed storage tank 1 is made of glass, plastic and other materials, is connected with the precision delivery pipe 4, is sealed by kerosene and is isolated from air. The tooth-shaped tubular mixer 6 mainly comprises an upper tooth-shaped blade 7, a lower tooth-shaped blade 7 and a middle arc-shaped splitter blade 8, wherein the lower end of the tooth-shaped tubular mixer is provided with a tooth-shaped mixer outlet I11, and a tooth-shaped mixer outlet II12 which is connected with a spiral tubular mixer 15. The upper end of the spiral tube type mixer 15 comprises a horizontal spiral mixer inlet I13 and a vertical spiral mixer inlet II14, the section of a main flow channel of the spiral tube type mixer 15 is elliptical, the long radius and the short radius of the ellipse are 12.5mm and 8mm respectively, the screw pitch of the spiral tube type mixer 15 is 30mm, and the spiral tube type mixer 15 in a Z shape is one cell and has four cells.
In this embodiment, the device for realizing the electronic injection printing of the ink mixture is implemented, and the specific steps are as follows:
first, the ink solution is transferred to a tube mixer
The ink solution 2 is stored in a sealed storage tank 1 with the capacity of 10-25L, a transmission pump 5 provides power to enable the ink solution 2 to be sucked into a precision delivery pipe 4 at the flow speed of 5-25, before the ink solution 2 flows into the precision delivery pipe 4, the annular flow sensor 3 is firstly used for detecting that the flow of the ink solution 2 in the precision delivery pipe 4 cannot be larger than 25ml/s and is not smaller than 5ml/s, the flow of the ink solution 2 is timely controlled by the transmission pump 5 when the range is exceeded, the phenomenon that the solution in the precision delivery pipe 4 is too much and is blocked or too little and the flow is unstable is avoided, and the stability and the uniformity of electronic injection printing are kept;
secondly, the ink solution is fully mixed in the conveying process by using a toothed tube type mixer and a spiral mixer
The precise delivery pipe 4 delivers the ink solution 2 to the toothed tubular mixer 6, the ink solution 2 firstly flows through the toothed blades 7 of 3 cells with the length of 225mm to 495mm and the width of 60 mm to 90mm and the interval of 3 cells at the upper end of the toothed tubular mixer 6 is 30mm to 75mm, the ink solution 2 and the toothed blades 7 form impact, the ink solution 2 is preliminarily mixed and precipitated after the first-step transportation, then flows through the arc splitter blade 8 with the arc radius of 25mm to 40mm, the arc splitter blade 8 divides the water flow into a left water flow and a right water flow, the left water flow surrounds the arc splitter blade 8 on the left side to form an anticlockwise water flow, the anticlockwise water flow flows down along the smooth arc partition plate on the lower half, the right water flow surrounds the arc splitter blade 8 on the right side to form a clockwise water flow, the clockwise water flow flows down along the smooth arc partition plate on the lower half to be in opposite impact and mixed with the anticlockwise water flow on the left side, and then flows through the toothed blades 7 of 3 cells with the interval of 30mm to 75mm at the lower end of the toothed tubular mixer 6, preparing a tooth-shaped tubular mixer 6 to flow out, wherein the water flow is divided into two flows through a tooth-shaped mixer outlet I11 with the section radius of 15-25 mm and a tooth-shaped mixer outlet II12 with the section radius of 15-25 mm when the water flows out, one flow flows through the tooth-shaped mixer outlet I11, the tooth-shaped mixer outlet I11 is provided with a valve 10, the size of the valve 10 can be adjusted according to requirements to adapt to different types of ink solutions 2 to form the ink solution 2 with the flow rate of 2-15 ml/s, the ink solution horizontally enters a spiral mixer inlet I13, the other flow flows through the tooth-shaped mixer outlet II12 and vertically flows into a spiral mixer inlet II14 without obstruction, the two flows flow through the tooth-shaped mixer outlet I11 are limited by the valve 10, the flow through the tooth-shaped mixer outlet II12 is not obstructed, and finally the water flows of 2-15 ml/s and 5-25 ml/s are respectively formed, the two water flows with different speeds generated by the same ink solution 2 flow through the spiral tube type mixer 17 with 4 unit grids and the length of each unit grid being 60-90 mm, and a centrifugal force field generated by the flowing liquid in the curve pipeline is utilized in the spiral tube type mixer 17 to generate secondary flow, so that the ink solution 2 is further uniformly mixed;
thirdly, printing the ink solution after uniform mixing to obtain a finished product
The conductive spray needle clamp 17 and the cavity spray needle 18 move on the Z axis to form a height of 100 mm-300 mm away from the substrate 20, the variable power supply 9 is switched on, unequal voltages of 30V to 3000V are generated according to requirements, an electric field is formed between the outer surface of the cavity spray needle 18 and the substrate 20 through the voltage through the conductive spray needle clamp 17, the ink solution 2 is electrified and mutually attracted with a moving substrate 21 connected with the ground, a stable nano jet 19 is formed, the moving substrate 21 and the substrate 20 move in a plane according to requirements, the ejected nano jet 19 is received, and finally a finished product is printed on the substrate 20.

Claims (1)

1. A device for realizing ink mixed electronic injection printing comprises a conveying monitoring module, a tubular mixer module and an injection printing motion module; the device is characterized in that the conveying monitoring module comprises a sealed storage tank (1), an ink solution (2), an annular flow sensor (3), a precise conveying pipe (4) and a transmission pump (5); the sealed storage tank (1) is used for storing the ink solution (2) and is connected with the precision conveying pipe (4); the transmission pump (5) provides power for the ink solution (2), and the ink solution (2) with a certain required amount firstly passes through the annular flow sensor (3) and then is sucked into the precision conveying pipe (4); the annular flow sensor (3) is fixed on the outer ring of the precision conveying pipe (4) and is arranged in front of the transmission pump (5), and the annular flow sensor (3) is positioned above the sealed storage tank (1) and is 10-100 cm away from the port of the sealed storage tank (1); the ink solution (2) is sucked into the precision conveying pipe (4) from the sealed storage tank (1), then flows through the annular flow sensor (3) and then flows through the transmission pump (5);
the tube type mixer module comprises a toothed tube type mixer (6), a toothed blade (7), an arc splitter blade (8), a valve (10), a toothed mixer outlet I (11), a toothed mixer outlet II (12), a spiral mixer inlet I (13), a spiral mixer inlet II (14), a spiral tube type mixer (15) and a cavity spray needle (18); the tooth-shaped tubular mixer (6) consists of tooth-shaped blades (7) and arc splitter blades (8), the tooth-shaped blades (7) are positioned at the upper end and the lower end of the tooth-shaped tubular mixer (6), and the arc splitter blades (8) are positioned in the middle of the tooth-shaped tubular mixer (6); the lower end of the tooth-shaped tubular mixer (6) is provided with a tooth-shaped mixer outlet I (11) and a tooth-shaped mixer outlet II (12) which are connected with a spiral tubular mixer (15); the tooth-shaped blades (7) are uniformly distributed at the upper end and the lower end of the tooth-shaped tubular mixer (6), one tooth-shaped blade (7) contained at the left side and one tooth-shaped blade contained at the right side form a unit cell together, and the upper end and the lower end of the unit cell are respectively provided with 3 unit cells; the arc splitter blade (8) is positioned in the middle of the toothed tubular mixer (6), between the upper toothed blade (7) and the lower toothed blade (7), the upper half part is formed by connecting two symmetrical three-quarters circles, and the lower half part is formed by two smooth arc partition plates; the valve is arranged at the outlet I (11) of the tooth-shaped mixer and is connected with the inlet I (13) of the spiral mixer; the outlet II (12) of the toothed mixer is directly connected with the inlet II (14) of the spiral mixer without any blocking device; the upper end of the spiral tube type mixer (15) comprises a horizontal spiral mixer inlet I (13) and a vertical spiral mixer inlet II (14), the section of a main flow passage of the spiral tube type mixer (15) is elliptical, and a section of the Z-shaped spiral tube type mixer (15) is a unit lattice;
the jet printing motion module comprises a variable power supply (9), a Z-direction moving shaft (16), a conductive spray needle clamp (17), jet flow (19), a substrate (20) and a motion base plate (21); the variable power supply (9) can form voltages of tens of volts to thousands of volts according to requirements, an electric field is formed between the outer surface of the cavity spray needle (18) and the substrate (20) through the conductive spray needle clamp (17), and the ink solution (2) forms a stable jet flow (19) in the electric field; the Z-direction moving shaft (16) is connected with the conductive spray needle clamp (17) to enable the conductive spray needle clamp (17) and the cavity spray needle (18) to move smoothly on the Z axis; the conductive spray needle clamp (17) is positioned in the middle of the cavity spray needle (18) and is connected with the cavity spray needle (18) and the Z-direction moving shaft (16); the moving base plate (21) is tightly attached to the ground connected with the lower part of the substrate (20), and moves forwards, backwards, leftwards and rightwards as required, so that the jet flow (19) can print different shapes on the substrate (20);
the device is used for ink mixing electric spraying printing, and is characterized by comprising the following steps:
first, delivering the ink solution to a tube mixer
The ink solution (2) is stored in the sealed storage tank (1), the transmission pump (5) provides power to enable a certain amount of the ink solution (2) to be sucked into the precise conveying pipe (4), before the ink solution (2) flows into the precise conveying pipe (4), the ink solution firstly passes through the annular flow sensor (3), the annular flow sensor (3) detects the flow of the ink solution (2) in the precise conveying pipe (4), the transmission pump (5) is used for controlling the flow of the ink solution (2) in time after data feedback, the situation that the ink solution (2) in the precise conveying pipe (4) is too much to block or too little to cause unstable flow is avoided, and the stability and uniformity of electronic jet printing are kept;
second, the ink is fully mixed during the transportation process
The precise conveying pipe (4) conveys the ink solution (2) to a toothed tube type mixer (6), the ink solution flows through a toothed blade (7) of 3 unit grids at the upper end of the toothed tube type mixer (6) firstly, the ink solution (2) and the toothed blade (7) form impact, the ink solution (2) caused by the primary mixing after the primary transportation is precipitated and then flows through an arc splitter blade (8), the arc splitter blade (8) divides the water flow into a left water flow and a right water flow, the left water flow surrounds the left arc splitter blade (8) to form a counterclockwise water flow, the left water flow flows down along the smooth arc splitter blade to form the counterclockwise water flow, the clockwise water flow is formed and flows down along the smooth arc splitter blade at the lower end of the toothed tube type mixer (6) to flow out the toothed tube type mixer (6), the clockwise water flow passes through a toothed mixer outlet I (11) and a toothed mixer outlet II (12) when flowing out, the two outlets divide the water flow into a water flow through a toothed mixer outlet I (11), the toothed mixer outlet I (11) with different types and an upper spiral valve (10) which can be adapted to the ink solution (2) according to the different horizontal flow speed, the other flow passes through a tooth-shaped mixer outlet II (12) and vertically flows into a spiral mixer inlet II (14) without obstruction, the two flows flow through a tooth-shaped mixer outlet I (11) and are limited by a valve (10), the flows flow through the tooth-shaped mixer outlet II (12) is not obstructed, finally two flows with different speeds are formed and are converged to a spiral tube-shaped mixer (17), the two flows with different speeds generated by the same ink solution (2) generate secondary flows in the spiral tube-shaped mixer (17) by utilizing a centrifugal force field generated by flowing liquid in a curve pipeline, and the uniform mixing of the ink solution (2) is realized;
thirdly, printing the uniformly mixed ink solution
The conductive spray needle clamp (17) and the cavity spray needle (18) move to a proper position on the Z axis to form a certain height with the substrate (20), a variable power supply (9) is switched on, voltage of tens of volts to thousands of volts is generated according to requirements, the voltage forms an electric field with the substrate (20) through the outer surface of the cavity spray needle (18) of the conductive spray needle clamp (17), so that the ink solution (2) is electrified and mutually attracted with a moving base plate (21) connected with the ground to form stable jet flow (19), the moving base plate (21) and the substrate (20) move in a plane according to requirements to receive the jetted jet flow (19), and finally a finished product is printed on the substrate (20).
CN202210958981.5A 2022-08-04 2022-08-04 Device for realizing ink mixing electronic injection printing Pending CN115431514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210958981.5A CN115431514A (en) 2022-08-04 2022-08-04 Device for realizing ink mixing electronic injection printing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210958981.5A CN115431514A (en) 2022-08-04 2022-08-04 Device for realizing ink mixing electronic injection printing

Publications (1)

Publication Number Publication Date
CN115431514A true CN115431514A (en) 2022-12-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210958981.5A Pending CN115431514A (en) 2022-08-04 2022-08-04 Device for realizing ink mixing electronic injection printing

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Country Link
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