阅读说明：本技术 一种多喷头的两轴电流体动力驱动打印设备 (Two-axis electrohydrodynamic drive printing equipment with multiple nozzles ) 是由 黄风立 金纬侃 于志恒 汤成莉 张天成 于 2021-08-07 设计创作，主要内容包括：本发明涉及打印技术领域,特别涉及一种多喷头的两轴电流体动力驱动打印设备；本发明包括机架、X轴位移装置、Y轴位移装置、Z轴往复装置、微流量泵装置、喷头装置、触摸屏装置及基板装置；在本发明内,在微流量泵装置内注入墨水,在基板装置上放置基底,在X轴位移装置和Z轴往复装置的带动下,喷头装置与微流量泵装置相连接,喷头装置在基底上进行图案化打印；实现了多喷头的电流体动力驱动打印,克服了低通量的限制,提高了打印的效率,从而达到稳定、高效率、高精度的大面积电流体动力学打印的工业化生产。(The invention relates to the technical field of printing, in particular to a multi-nozzle two-axis electro-hydrodynamic driving printing device; the invention comprises a frame, an X-axis displacement device, a Y-axis displacement device, a Z-axis reciprocating device, a micro-flow pump device, a spray head device, a touch screen device and a substrate device; in the invention, ink is injected into the micro-flow pump device, a substrate is placed on the substrate device, the nozzle device is connected with the micro-flow pump device under the drive of the X-axis displacement device and the Z-axis reciprocating device, and the nozzle device performs patterned printing on the substrate; the electrohydrodynamic drive printing of multiple nozzles is realized, the limitation of low flux is overcome, and the printing efficiency is improved, so that the industrial production of stable, high-efficiency and high-precision large-area electrohydrodynamic printing is realized.)

1. A multi-nozzle two-axis electrohydrodynamic drive printing device comprises a rack and is characterized by further comprising an X-axis displacement device connected to the rack, a Y-axis displacement device connected to the rack, a Z-axis reciprocating device connected to the X-axis displacement device, a micro-flow pump device connected to the rack, a nozzle device connected to the Z-axis reciprocating device, a touch screen device connected to the rack and a substrate device connected to the Y-axis displacement device; the nozzle device is connected with the micro-flow pump device, at least one nozzle is arranged in the nozzle device, ink is injected into the micro-flow pump device, a substrate is placed on the substrate device, and the nozzle device is used for carrying out patterned printing on the substrate under the driving of the X-axis displacement device and the Z-axis reciprocating device.

2. The apparatus of claim 1, wherein the X-axis displacement device comprises an X-axis displacer, an X-axis ball screw slider, and a horizontal moving plate, the X-axis ball screw slider slidably connected to the X-axis displacer and fixedly connected to the horizontal moving plate.

3. The two-axis electrohydrodynamic drive printing apparatus of claim 2, wherein the Z-axis reciprocating device comprises a cylinder mechanism, a first linear slider mechanism, and an adaptor plate, the cylinder mechanism is connected to the horizontal moving plate and the adaptor plate, respectively, and the first linear slider mechanism is fixedly connected to the adaptor plate and to the horizontal moving plate.

4. The two-axis electrohydrodynamic drive printing apparatus with multiple nozzles according to claim 3, wherein the Y-axis displacement device includes a station table, a Y-axis displacer, a Y-axis ball screw slider, a second linear slider mechanism, and a sliding table, the Y-axis displacer is fixed to a lower portion of the frame, the station table is fixedly connected to the sliding table, the second linear slider mechanism is fixed to the sliding table, and the Y-axis ball screw slider is slidably connected to the Y-axis displacer and is fixedly connected to the sliding table.

5. The multi-jet two-axis electrohydrodynamic printing apparatus of claim 4, wherein the micro-flow pump mechanism comprises a micro-flow pump mounting plate, a micro-flow pump mounted on the micro-flow pump mounting plate, and a syringe mounted to the micro-flow pump mounting plate at an upper end of the frame.

6. The two-axis electrohydrodynamic drive printing apparatus with multiple nozzles according to claim 5, wherein the nozzle mechanism comprises a micropositioner, a nozzle fixing plate, and a nozzle, the micropositioner is fixed on the adapter plate, the nozzle fixing plate is fixed on the micropositioner, and the nozzle is fixed on the nozzle fixing plate.

7. The two-axis electrohydrodynamic printing apparatus of claim 6 wherein the base plate mechanism includes an insulating base and a base plate coupled together, the insulating base being secured to the station.

8. The two-axis electrohydrodynamic drive printing apparatus with multiple nozzles according to claim 7, wherein the touch screen mechanism comprises a bent tube support, a bent tube, an electric box and a touch screen, the bent tube support is fixed on the frame, two ends of the bent tube are respectively fixedly connected with the bent tube support and the electric box, and the touch screen is fixedly connected to the electric box.

9. A multi-jet two-axis electrohydrodynamic printing apparatus as claimed in claim 8, wherein four of the jets are connected to the jet mounting plate.

10. A multi-jet two-axis electrohydrodynamic printing apparatus as claimed in claim 9, wherein four micro-flow pumps are connected to the micro-flow pump mounting plate.

Technical Field

The invention relates to the technical field of printing, in particular to a multi-nozzle two-axis electro-hydrodynamic driving printing device.

Background

The ink-jet printing technology is a direct non-contact manufacturing technology without a template, can realize the digital flexible printing of solution under the environment of normal temperature, normal pressure and unclean, can realize large-area batch production, and is an effective method for manufacturing printing electrons.

The traditional ink-jet printing has low manufacturing cost but low resolution on a large-area substrate, the minimum droplet diameter ranges from 30 micrometers to 50 micrometers, the minimum droplet volume is from 10 pl to 100pl, the manufacturing of printing electronic equipment with smaller characteristic size is difficult to realize, and the uniformity of the structure is general.

Compared with the traditional ink-jet printing, the electro-hydrodynamic printing technology adopts a push mode, adopts an electric field to drive conductive ink in a spray head to be deposited on a substrate in a pull mode to obtain a pattern, and has the key of the printing principle of the Taylor effect, namely when charged liquid is supplied to a capillary nozzle at a constant speed, electric charges in a hanging drop at the tip of the nozzle are enriched on the surface under the action of the electric field, and along with the increase of voltage, the electric field force in the tangential direction of the liquid level enables the liquid drop to be stretched and deformed to form a conical liquid level, namely a Taylor cone; when the electrostatic force exceeds a critical value, the liquid is ejected from the top end of the Taylor cone, so that very fine jet flow or liquid drops are formed, the electrohydrodynamic jet printing viscosity range is wide, and the minimum resolution can reach 0.2; the low production speed of electrohydrodynamic printing is a major problem since high resolution is achieved with very small jets or droplets.

Disclosure of Invention

In order to overcome the above-mentioned disadvantages, the present invention provides a multi-nozzle two-axis electrohydrodynamic drive printing apparatus, which injects ink into a micro-flow pump device, places a substrate on a substrate device, and is driven by an X-axis displacement device and a Z-axis reciprocating device to connect the nozzle device with the micro-flow pump device, and the nozzle device performs patterned printing on the substrate; therefore, the stable, high-efficiency and high-precision large-area electrohydrodynamic printing industrial production is realized.

The technical scheme for solving the technical problem is as follows:

a multi-nozzle two-axis electrohydrodynamic force driving printing device comprises a rack, and further comprises an X-axis displacement device connected to the rack, a Y-axis displacement device connected to the rack, a Z-axis reciprocating device connected to the X-axis displacement device, a micro-flow pump device connected to the rack, a nozzle device connected to the Z-axis reciprocating device, a touch screen device connected to the rack, and a substrate device connected to the Y-axis displacement device; the nozzle device is connected with the micro-flow pump device, at least one nozzle is arranged in the nozzle device, ink is injected into the micro-flow pump device, a substrate is placed on the substrate device, and the nozzle device is used for carrying out patterned printing on the substrate under the driving of the X-axis displacement device and the Z-axis reciprocating device.

As an improvement of the present invention, the X-axis displacement device includes an X-axis displacer, an X-axis ball screw slider, and a horizontal moving plate, and the X-axis ball screw slider is slidably connected to the X-axis displacer and is fixedly connected to the horizontal moving plate.

As a further improvement of the present invention, the Z-axis reciprocating device includes an air cylinder mechanism, a first linear slider mechanism and an adapter plate, the air cylinder mechanism is respectively connected to the horizontal moving plate and the adapter plate, and the first linear slider mechanism is fixedly connected to the adapter plate and the horizontal moving plate.

As a further improvement of the present invention, the Y-axis displacement device includes a station table, a Y-axis displacer, a Y-axis ball screw slider, a second linear slider mechanism, and a sliding table, the Y-axis displacer is fixed to the lower portion of the frame, the station table is fixedly connected to the sliding table, the second linear slider mechanism is fixed to the sliding table, and the Y-axis ball screw slider is slidably connected to the Y-axis displacer and is fixedly connected to the sliding table.

As a further improvement of the present invention, the micro-flow pump mechanism includes a micro-flow pump fixing plate, a micro-flow pump fixed on the micro-flow pump fixing plate, and a syringe connected to the micro-flow pump.

As a further improvement of the invention, the spray head mechanism comprises a micropositioner, a spray head fixing plate and a spray head, wherein the micropositioner is fixed on the adapter plate, the spray head fixing plate is fixed on the micropositioner, and the spray head is fixed on the spray head fixing plate.

As a further improvement of the invention, the base plate mechanism comprises an insulating base and a base plate which are connected, and the insulating base is fixed on the station table.

As a further improvement of the present invention, the touch screen mechanism includes a bent pipe bracket, a bent pipe, an electric box and a touch screen, the bent pipe bracket is fixed on the rack, two ends of the bent pipe are respectively and fixedly connected with the bent pipe bracket and the electric box, and the touch screen is fixedly connected to the electric box.

As a further improvement of the present invention, four of the nozzles are connected to the nozzle fixing plate.

As a further improvement of the present invention, four micro-flow pumps are connected to the micro-flow pump fixing plate.

In the invention, ink is injected into the micro-flow pump device, a substrate is placed on the substrate device, the nozzle device is connected with the micro-flow pump device under the drive of the X-axis displacement device and the Z-axis reciprocating device, and the nozzle device performs patterned printing on the substrate; the electrohydrodynamic drive printing of multiple nozzles is realized, the limitation of low flux is overcome, and the printing efficiency is improved, so that the industrial production of stable, high-efficiency and high-precision large-area electrohydrodynamic printing is realized.

Drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and the accompanying drawings.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of an X-axis displacement device of the present invention;

FIG. 3 is a schematic view of a micro-flow pump device of the present invention;

FIG. 4 is a schematic view of a touch screen apparatus of the present invention;

FIG. 5 is a schematic view of a Z-axis shuttle of the present invention;

FIG. 6 is a schematic view of a showerhead arrangement of the present invention;

FIG. 7 is a schematic view of a substrate apparatus of the present invention;

FIG. 8 is a schematic view of a Y-axis displacement device of the present invention;

FIG. 9 is a schematic view of an X-axis displacer of the present invention;

FIG. 10 is a schematic view of the cylinder mechanism of the present invention;

FIG. 11 is a schematic view of the Y-axis displacer of the present invention;

in the figure: 1-frame, 2-X axis displacement device, 3-micro flow pump device, 4-touch screen device, 5-Z axis reciprocating device, 6-spray head device, 7-substrate device, 8-Y axis displacement device, 9-X axis displacement device, 10-X axis ball screw slide block, 11-horizontal moving plate, 12-micro flow pump fixing plate, 13-micro flow pump, 14-injector, 15-elbow support, 16-elbow, 17-electric box, 18-touch screen, 19-cylinder mechanism, 20-first linear slide block mechanism, 21-adapter plate, 22-micro-motion table, 23-spray head fixing plate, 24-spray head, 25-insulating base, 26-substrate, 27-station table, 28-Y axis displacement device, 29-Z-axis ball screw slide block, 30-second linear slide block mechanism, 31-sliding table, 32-first servo motor, 33-first single-shaft driver, 34-air cylinder screw rod, 35-fisheye joint, 36-air cylinder, 37-round nut, 38-air cylinder fixing seat, 39-screw rod supporting ring, 40-second servo motor and 41-second single-shaft driver.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 11, the multi-nozzle two-axis electrohydrodynamic driving printing apparatus of the present invention includes a frame 1, an X-axis displacement device 2 connected to the frame 1, a Y-axis displacement device 8 connected to the frame 1, a Z-axis reciprocating device 5 connected to the X-axis displacement device 2, a micro-flow pump device 3 connected to the frame 1, a nozzle device 6 connected to the Z-axis reciprocating device 5, a touch screen device 4 connected to the frame 1, and a substrate device 7 connected to the Y-axis displacement device 8.

In the present invention, a head device 6 is connected to a micro flow pump device 3, at least one head 24 is provided in the head device 6,

in the invention, ink is injected into a micro-flow pump device 3, a substrate is placed on a substrate device 7, a nozzle device 6 is connected with the micro-flow pump device 3 under the drive of an X-axis displacement device 2 and a Z-axis reciprocating device 5, and the nozzle device 6 performs patterned printing on the substrate; the electrohydrodynamic drive printing of multiple nozzles is realized, the limitation of low flux is overcome, and the printing efficiency is improved, so that the industrial production of stable, high-efficiency and high-precision large-area electrohydrodynamic printing is realized.

Specifically, the micro flow pump device 3 includes a micro flow pump fixing plate 12, a micro flow pump 13, and a syringe 14, the micro flow pump 13 is fixed on the micro flow pump fixing plate 12, and the syringe 14 is connected to the micro flow pump 13; the number of the micro flow pumps 13 is four, and the micro flow pumps are sequentially fixed on the micro flow pump fixing plate 12 at equal intervals from left to right, and the number of the syringes 14 is four, and the four micro flow pumps 13 are sequentially fixed.

In the invention, the touch screen mechanism 4 comprises a bent pipe support 15, a bent pipe 16, an electric box 17 and a touch screen 18, wherein the bent pipe support 15 is fixed on the right end face of the rack 1, two ends of the bent pipe 16 are respectively fixedly connected with the bent pipe support 15 and the electric box 17, and the touch screen 18 is fixed on the electric box 17.

In the invention, the spray head mechanism 6 comprises a micropositioner 22, a spray head fixing plate 23 and a spray head 24, wherein the micropositioner 22 is fixed on the adapter plate 21, the spray head fixing plate 23 is fixedly connected with the micropositioner 22, and the spray head 24 is fixed on the spray head fixing plate 23; the nozzles 24 are four in number, and are sequentially fixed to four holes of the nozzle fixing plate 23 from left to right, and needles of the four syringes 14 are connected to the four nozzles 14 through hoses, so that printing of multiple nozzles is realized, and each nozzle can be independently controlled.

In the present invention, the substrate device 7 includes an insulating base 25 and a substrate 26, the insulating base 25 is fixed on the station table 27, and the substrate 26 is fixedly connected with the insulating base 25.

In the invention, the X-axis displacement device 2 comprises an X-axis displacement device 9, an X-axis ball screw slider 10 and a horizontal moving plate 11, the ball screw slider 10 is connected with the X-axis displacement device 9 in a sliding mode and fixedly connected with the horizontal moving plate 11, the X-axis displacement device 9 comprises a first servo motor 32 and a first single-axis driver 33, and the first servo motor 32 is connected with the first single-axis driver 33 through an elastic coupling to form a horizontal moving assembly.

The Z-axis reciprocating device 5 comprises an air cylinder mechanism 19, a first linear sliding block mechanism 20 and an adapter plate 21, wherein the air cylinder mechanism 19 is respectively connected with the horizontal moving plate 11 and the adapter plate 21, and the first linear sliding block mechanism 20 is respectively fixedly connected with the adapter plate 21 and the horizontal moving plate 11; specifically, the air cylinder mechanism 19 includes an air cylinder screw 34, a fisheye joint 35, an air cylinder 36, a round nut 37, an air cylinder fixing seat 38 and a screw supporting ring 39, the air cylinder fixing seat 38 is fixed at the left upper end of the horizontal moving plate 11, the air cylinder 36 is fixedly connected with the air cylinder fixing seat 38 through the round nut 37, the fisheye joint 35 is slidably connected with the air cylinder 36, the air cylinder screw 34 is connected with the fisheye hole of the fisheye joint 35 and is connected with the small hole on the left end surface of the adapter plate 21, the screw supporting ring 39 is sleeved on the air cylinder screw 34, an internal thread is arranged in the small hole on the left end surface of the adapter plate 21, the air cylinder screw 34 and the adapter plate 21 form a moving device, by the design, the air cylinder 36 can control the movement of the fisheye joint 35 on the Z axis, and then the adapter plate 21 is driven to move under the cooperation of the air cylinder screw 34, thus, the distance between the head 24 and the substrate 26 is roughly adjusted before the printing is started, and the distance between the head 24 and the substrate 26 is finely adjusted by the micropositioner 22 of the head unit 6.

In the invention, the Y-axis displacement device 8 comprises a station table 27, a Y-axis displacement device 28, a Y-axis ball screw sliding block 29, a second linear sliding block mechanism 30 and a sliding table 31, the Y-axis displacement device 8 is fixed at the lower half part of the rack 1, the station table 27 is fixedly connected with the sliding table 31, the second linear sliding block mechanism 30 is fixed on the sliding table 31, and the Y-axis ball screw sliding block 29 is slidably connected with the Y-axis displacement device 28 and is fixedly connected with the sliding table 31; the Y-axis shifter 28 includes a second servomotor 40 and a second uniaxial driver 41, and the second servomotor 40 and the second uniaxial driver 41 are connected by an elastic coupling.

The second linear slider mechanism 30 and the first linear slider mechanism 20 each include a slide rail and a slider slidably connected to each other.

The invention provides an embodiment, which comprises a frame 1, an X-axis displacement device 2 connected to the frame 1, a Y-axis displacement device 8 connected to the frame 1, a Z-axis reciprocating device 5 connected to the X-axis displacement device 2, a micro-flow pump device 3 connected to the frame 1, a spray head device 6 connected to the Z-axis reciprocating device 5, a touch screen device 4 connected to the frame 1 and a substrate device 7 connected to the Y-axis displacement device 8; the X-axis displacement device 2 comprises an X-axis displacer 9, an X-axis ball screw slider 10 and a horizontal moving plate 11, the ball screw slider 10 is connected with the X-axis displacer 9 in a sliding mode and is fixedly connected with the horizontal moving plate 11, the X-axis displacer 9 comprises a first servo motor 32 and a first single-shaft driver 33, the first servo motor 32 is connected with the first single-shaft driver 33 through an elastic coupling, the Z-axis reciprocating device 5 comprises an air cylinder mechanism 19, a first linear slider mechanism 20 and a switching plate 21, the air cylinder mechanism 19 is respectively connected with the horizontal moving plate 11 and the switching plate 21, and the first linear slider mechanism 20 is respectively fixedly connected with the switching plate 21 and the horizontal moving plate 11; the cylinder mechanism 19 comprises a cylinder screw 34, a fisheye joint 35, a cylinder 36, a round nut 37, a cylinder fixing seat 38 and a screw supporting ring 39, the cylinder fixing seat 38 is fixed at the left upper end of the horizontal moving plate 11, the cylinder 36 is fixedly connected with the cylinder fixing seat 38 through the round nut 37, the fisheye joint 35 is slidably connected with the cylinder 36, the cylinder screw 34 is connected with the fisheye hole of the fisheye joint 35 and is connected with a small hole on the left end surface of the adapter plate 21, the screw supporting ring 39 is sleeved on the cylinder screw 34, an internal thread is arranged in the small hole on the left end surface of the adapter plate 21, the cylinder screw 34 is in threaded connection with the adapter plate 21, the fisheye joint 35 and the adapter plate 21 form a moving device through the cylinder screw 34, the Y-axis moving device 8 comprises a station table 27, a Y-axis shifter 28, a Y-axis ball screw slider 29, a second linear slider mechanism 30 and a sliding table 31, the Y-axis moving device 8 is fixed at the lower half part of the frame 1, the station table 27 is fixedly connected with the sliding table 31, the second linear slider mechanism 30 is fixed on the sliding table 31, and the Y-axis ball screw slider 29 is slidably connected with the Y-axis shifter 28 and is fixedly connected with the sliding table 31; the Y-axis shifter 28 comprises a second servo motor 40 and a second single-axis driver 41, the second servo motor 40 is connected with the second single-axis driver 41 through an elastic coupling, and the second linear sliding block mechanism 30 and the first linear sliding block mechanism 20 respectively comprise a sliding rail and a sliding block which are connected with each other in a sliding manner; the micro-flow pump device 3 comprises a micro-flow pump fixing plate 12, a micro-flow pump 13 and an injector 14, wherein the micro-flow pump 13 is fixed on the micro-flow pump fixing plate 12, and the injector 14 is connected with the micro-flow pump 13; the number of the micro-flow pumps 13 is four, the micro-flow pumps are sequentially fixed on the micro-flow pump fixing plate 12 at equal intervals from left to right, and the number of the syringes 14 is four, and the four micro-flow pumps 13 are sequentially fixed on the four micro-flow pumps 13; the nozzle mechanism 6 comprises a micropositioner 22, a nozzle fixing plate 23 and a nozzle 24, wherein the micropositioner 22 is fixed on the adapter plate 21, the nozzle fixing plate 23 is fixedly connected with the micropositioner 22, and the nozzle 24 is fixed on the nozzle fixing plate 23; the number of the nozzles 24 is four, the nozzles are sequentially fixed on four holes of the nozzle fixing plate 23 from left to right, the needles of the four syringes 14 are connected with the four nozzles 14 through hoses, the substrate device 7 comprises an insulating base 25 and a substrate 26, the insulating base 25 is fixed on the station table 27, and the substrate 26 is fixedly connected with the insulating base 25.

The working process of the invention is as follows: when the invention is used, an external power supply is adopted, first the first servo motor 32 and the second servo motor 40 are controlled to carry out the positioning and calibration in the previous period, at the moment, the injector 14 is filled with flexible nano ink, then the injector is placed on the micro-flow pump 12, the needle head of the injector 14 is connected with the spray head 24 through a hose, then the spray head 24 is fixed on the spray head fixing plate, the substrate is fixed on the substrate 26, then the air cylinder 36 is controlled to carry out coarse adjustment, the micro-motion platform 22 is controlled to carry out fine adjustment on the distance between the spray head 24 and the substrate, at the moment, the first servo motor 32 and the second servo motor 40 are controlled to rotate through the touch screen 18, the spray head fixing plate 23 and the substrate 26 are connected with the power supply, so as to form an electric field, through the rotation of the first servo motor 32, under the coordination of the elastic coupling, the screw rod on the first single-axis driver 33 is driven to move in the X-axis direction, at the moment, the water translation movable plate 11 starts to move under the coordination of the X-axis ball screw slide block 10, thereby driving the Z-axis reciprocating device 5 and the spray head device 6 to move; meanwhile, through the rotation of the second servo motor 40, under the coordination of the elastic coupling, the screw rod on the second single-axis driver 41 is driven to move in the Y-axis direction, the sliding table 31 starts to move under the coordination of the Y-axis ball screw sliding block 29, so that the second linear sliding block mechanism 30 and the station table 27 are driven to move, then the substrate device 7 is driven to move, so that the movement in the two-axis direction is realized, the patterned printing is carried out, when the printing is finished, the power supply connected to the nozzle fixing plate 23 and the substrate 26 is closed, and then the printed substrate is taken out, and finally the electrohydrodynamic printing is finished; the electrohydrodynamic drive printing of multiple nozzles is realized, the limitation of low flux is overcome, and the printing efficiency is improved, so that the industrial production of stable, high-efficiency and high-precision large-area electrohydrodynamic printing is realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.