CN106824686B - Device and method for removing protrusions on sprayed surface - Google Patents
Device and method for removing protrusions on sprayed surface Download PDFInfo
- Publication number
- CN106824686B CN106824686B CN201710134221.1A CN201710134221A CN106824686B CN 106824686 B CN106824686 B CN 106824686B CN 201710134221 A CN201710134221 A CN 201710134221A CN 106824686 B CN106824686 B CN 106824686B
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- control unit
- supporting plate
- ultrasonic
- protruding part
- support plate
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 14
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
Landscapes
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a device and a method for removing bulges on a spraying surface, wherein the device comprises a supporting plate and an optical profiler, and the optical profiler is electrically connected with a control unit; an ultrasonic device is arranged below the supporting plate, the ultrasonic device is driven by a transmission device to move along the X-axis direction, and the transmission device and the ultrasonic device are electrically connected with the control unit; the support plate is provided with a driving device for driving the support plate to reciprocate back and forth, and the driving device is electrically connected with the control unit. The beneficial effects of the invention are mainly as follows: the structure is simple and ingenious, the problem that the brightness of the display is uneven due to poor uniformity of the film layer at the junction is effectively solved, various marks are caused, and the service life of the display is greatly prolonged.
Description
Technical Field
The invention relates to the field of surface spraying, in particular to a device and a method for removing protrusions on a sprayed surface.
Background
With the development of economy, display technology including FMM vapor deposition and inkjet printing OLED technology has become an industry hotspot. The main difference between Fine Metal Mask (FMM) evaporation and inkjet printing is the equipment and materials that make these organic layers. When manufacturing these organic layers using FMM, a vacuum apparatus is required. The solid material is added to the device and then the OLED is printed by heating the evaporated ink on a different principle. The basic principle is similar to that of common inkjet printers in home and offices, and the inkjet printing method mainly uses solvents to melt organic materials of the OLED, and then directly sprays the materials on the surface of a substrate to form R (red), G (green) and B (blue) organic luminescent layers.
However, in practical ink jet, because the width of the ink jet head is limited, the back and forth scanning and spraying are required, the uniformity of the film layer at the juncture of adjacent scanning areas is poor, the brightness of the display is uneven, various marks are caused, the normal use of users is greatly affected, and the service life of the ink jet head is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device and a method for removing protrusions on a spraying surface.
The aim of the invention is achieved by the following technical scheme:
the device for removing the bulges on the spraying surface comprises a supporting plate and spray heads positioned above the supporting plate, wherein the distance between adjacent spray heads is smaller than the distance between the spray heads for spraying media, the overlapping parts of the media sprayed by the adjacent spray heads are bulges, one side of the supporting plate is provided with an optical profiler for accurately positioning the bulges, and the optical profiler is electrically connected with a control unit; an ultrasonic device is arranged below the supporting plate, the ultrasonic device is driven by a transmission device to move along the X-axis direction, and the transmission device and the ultrasonic device are electrically connected with the control unit; the support plate is provided with a driving device for driving the support plate to reciprocate back and forth, and the driving device is electrically connected with the control unit.
Preferably, the transmission device is a driving motor, a motor shaft of the driving motor is fixedly connected with a transmission screw rod, and the rotation motion of the transmission screw rod is converted into linear motion in the X-axis direction of the ultrasonic device.
Preferably, the ultrasonic device at least comprises an ultrasonic vibrator and a base, the axis of the ultrasonic vibrator is parallel to the Y-axis direction, and the base is connected with the transmission screw rod.
Preferably, threads matched with the transmission screw rod are arranged at the bottom of the base, and the transmission screw rod is used for transmission between the base and the transmission screw rod.
Preferably, the driving device at least comprises rod bodies positioned at two sides of the supporting plate, a guide rail is further fixed on the rod bodies, and the supporting plate is slidably arranged on the guide rail.
Preferably, the device further comprises a driver for driving the supporting plate to reciprocate back and forth, and the driver is electrically connected with the control unit.
The invention also discloses a method for removing the convex part of the spraying surface, which comprises the following steps:
s1, coordinate positioning, namely controlling the optical profiler to calibrate the coordinate of the boundary of the support plate 1 to be an origin through the control unit;
s2, detecting the upper surface of the sprayed supporting plate by the optical profiler, accurately positioning the protruding part, measuring coordinate values, height h and angle characteristic values a of the protruding part, and transmitting data to the control unit;
s3, an alignment step, wherein the control unit controls the transmission device to drive the ultrasonic device to horizontally move according to the coordinate value measured by the control unit; simultaneously controlling the driving device to drive the supporting plate to move forwards and backwards, so that the transmission device and the driving device immediately stop moving after the ultrasonic device is positioned right below the protruding part and are in a static state;
s4, an oscillation processing step, wherein the control unit controls the ultrasonic vibrator of the ultrasonic device to start emitting ultrasonic waves to oscillate the protruding part according to the measurement data, and the energy of the ultrasonic waves meets the following formula:
W=(P*V 2 *A 2 *tan a)/(4h*t 2 ) Wherein: p is the density of the medium ink-jet material, A is the amplitude, V is the wave speed, h is the height of the bulge, t is the acting time, and a is the angle characteristic value;
s5, resetting, wherein the control unit controls the transmission device and the driving device to reset;
s6, detecting the upper surface of the support plate after oscillation again by the optical profiler, and resetting all devices if the angle characteristic value a of the support plate meets the requirement; and if the angle characteristic value a of the supporting plate does not meet the requirement, repeating the steps 1 to 6 until the angle characteristic value a of the supporting plate meets the requirement.
Preferably, the amplitude of the decrease in height of the boss is proportional to the frequency of the ultrasonic wave.
The beneficial effects of the invention are mainly as follows: the structure is simple and ingenious, the problem that the brightness of the display is uneven due to poor uniformity of the film layer at the junction is effectively solved, various marks are caused, and the service life of the display is greatly prolonged.
Drawings
The technical scheme of the invention is further described below with reference to the accompanying drawings:
fig. 1: the structure of the invention is schematically shown;
fig. 2: the boss of the present invention is schematically illustrated.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. The embodiments are not limited to the present invention, and structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.
As shown in fig. 1, the invention discloses a device for removing protrusions on a spraying surface, which comprises a supporting plate 1 and a spray head 2 positioned above the supporting plate, wherein a glass bottom plate is arranged between the supporting plate 1 and the spray head 2, the glass bottom plate is arranged on the supporting plate 1, the distance between adjacent spray heads 2 is smaller than the distance between the spray heads 2 for spraying media, and the spray heads have limited width and need to scan back and forth for spraying, so that uneven brightness of a display is generated due to poor uniformity of a film layer at the juncture of adjacent scanning areas, and the overlapping part of the media is a protruding part 3.
One side of the supporting plate 1 is provided with an optical profiler for accurately positioning the protruding part 3, the simple working process of the optical profiler is that one beam of polarized light is emitted from a light source of the optical profiler and then enters a polarization beam splitter prism after being changed into linear polarized light by a polarizer, the polarization beam splitter prism divides the polarized light into two beams of linearly polarized light with tiny included angles, and the vibration directions of the two beams of polarized light are mutually perpendicular. After passing through the microscope objective, the two beams of light generate a parallel shearing quantity to be projected to the upper surface of the supporting plate 1, the two beams of orthogonal polarized light reflected from the upper surface of the supporting plate 1 return through an original path, are re-combined to be collinear by the polarization beam splitting prism, then pass through a 1/4 wave plate and an analyzer to interfere, and a phase shift interference technology is applied to realize the highly accurate positioning and the height measurement of the upper surface protruding part 3 of the supporting plate 1. The optical profiler is electrically connected with the control unit, and the optical profiler transmits the measured data to the control unit.
An ultrasonic device 5 is arranged below the supporting plate 1, the ultrasonic device 5 is driven by a transmission device 6 to move along the X-axis direction, and the transmission device 6 and the ultrasonic device 5 are electrically connected with the control unit; the support plate 1 is provided with a driving device 7 for driving the support plate to reciprocate back and forth, and the driving device 7 is electrically connected with the control unit.
The ultrasonic device 5 at least comprises an ultrasonic vibrator 52 and a base 53, the axis of the ultrasonic vibrator 52 is parallel to the Y-axis direction, the protruding portion 3 is oscillated by the process of being emitted by the ultrasonic vibrator 52, the height of the protruding portion 3 is reduced, and the uniformity of the height of the upper surface of the supporting plate 1 is improved. The base 53 is connected with the transmission screw rod 62, that is, threads matched with the transmission screw rod 62 are arranged at the bottom of the base 53, and the two are transmitted through the screw rod. The transmission device 6 is a driving motor 61, a motor shaft of the driving motor 61 is fixedly connected with a transmission screw 62, and the rotation motion of the transmission screw 62 is converted into linear motion in the X-axis direction of the ultrasonic device 5.
The invention controls the rotating speed and the rotating time of the transmission device 6 according to the data of the optical profiler through the control unit, and simultaneously controls the time and the frequency of the ultrasonic wave emitted by the ultrasonic device 5.
The driving device 7 at least comprises rod bodies 8 positioned at two sides of the supporting plate 1, a guide rail 82 is also fixed on the rod bodies 8, and the supporting plate 1 is slidably arranged on the guide rail 82. The invention further comprises a driver 81 for driving the supporting plate 1 to reciprocate back and forth, and the driver 81 is electrically connected with the control unit.
The invention also discloses a method for removing the convex part of the spraying surface, which comprises the following steps:
s1, coordinate positioning, namely controlling the optical profiler to calibrate the coordinate of the boundary of the support plate 1 to be an origin through the control unit;
s2, detecting the upper surface of the sprayed supporting plate 1 by the optical profiler, accurately positioning the protruding part 3, measuring coordinate values, height h and angle characteristic values a of the protruding part, and transmitting data to the control unit;
s3, an alignment step, wherein the control unit controls the transmission device 6 to drive the ultrasonic device 5 to horizontally move according to the coordinate value measured by the control unit; simultaneously controlling the driving device 7 to drive the supporting plate 1 to move forwards and backwards, so that the transmission device 6 and the driving device 7 stop moving immediately after the ultrasonic device 5 reaches the position right below the protruding part 3 and are in a static state;
s4, an oscillation processing step, wherein the control unit controls the ultrasonic vibrator 52 of the ultrasonic device 5 to start emitting ultrasonic waves to oscillate the protruding part 3 according to the measurement data, and the energy of the ultrasonic waves meets the following formula: w= (P x V) 2 *A 2 *tan a)/(4h*t 2 ），
Ultrasonic energy (P F V a)/2, P is the density of the medium inkjet material, F acoustic frequency, a is amplitude, V is wave velocity, L is bump bottom width, h is bump height, T is time of action, and a is an angle characteristic value.
W=（P*F*F*V*A*A)/2L；
V=F*h =h/t；
Tan a=h/0.5L；
Therefore, from the above, W= (P. Times.V) 2 *A 2 *tan a)/(4h*t 2 ）。
S5, resetting, wherein the control unit controls the transmission device 6 and the driving device 7 to reset;
s6, detecting again, namely detecting the upper surface of the support plate 1 after oscillation by the optical profiler again, and resetting all devices if the angle characteristic value a of the support plate 1 meets the requirement; if the angle characteristic value a of the supporting plate 1 does not meet the requirement, repeating the steps 1 to 6 until the angle characteristic value a of the supporting plate 1 meets the requirement.
Preferably, the height of the boss 3 is reduced in magnitude proportional to the frequency of the ultrasonic wave.
The beneficial effects of the invention are mainly as follows: the structure is simple and ingenious, the problem that the brightness of the display is uneven due to poor uniformity of the film layer at the junction is effectively solved, various marks are caused, and the service life of the display is greatly prolonged.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (1)
1. A method for removing protrusions on a spraying surface, which comprises a supporting plate (1) and spray heads (2) positioned above the supporting plate, wherein the distance between adjacent spray heads (2) is smaller than the distance between the spray heads (2) for spraying media, the overlapping part of the media sprayed by the adjacent spray heads (2) is a protruding part (3), one side of the supporting plate (1) is provided with an optical profiler for accurately positioning the protruding part (3), and the optical profiler is electrically connected with a control unit; an ultrasonic device (5) is arranged below the supporting plate (1), the ultrasonic device (5) is driven by a transmission device (6) to move along the X-axis direction, and the transmission device (6) and the ultrasonic device (5) are electrically connected with the control unit; the support plate (1) is provided with a driving device (7) for driving the support plate to reciprocate back and forth, and the driving device (7) is electrically connected with the control unit, and is characterized by comprising the following steps:
s1, coordinate positioning, namely controlling the optical profiler to calibrate the coordinate of the boundary of the support plate (1) to be an origin through the control unit;
s2, detecting the upper surface of the sprayed supporting plate (1) by the optical profiler, accurately positioning the protruding part (3), measuring coordinate values, heights (h) and angle characteristic values (a) of the protruding part, and transmitting data to the control unit;
s3, an alignment step, wherein the control unit controls the transmission device (6) to drive the ultrasonic device (5) to horizontally move according to the coordinate value measured by the control unit; simultaneously controlling the driving device (7) to drive the supporting plate (1) to move forwards and backwards, so that the transmission device (6) and the driving device (7) stop moving immediately after the ultrasonic device (5) reaches the position right below the protruding part (3) and are in a static state;
s4, an oscillation processing step, wherein the control unit controls an ultrasonic vibrator (52) of the ultrasonic device (5) to start emitting ultrasonic waves to oscillate the protruding part (3) according to measurement data; the amplitude of the height decrease of the boss (3) is proportional to the frequency of the ultrasonic wave;
s5, a resetting step, wherein the control unit controls the transmission device (6) and the driving device (7) to reset;
s6, detecting the upper surface of the support plate (1) after oscillation again by the optical profiler, and resetting all devices if the angle characteristic value (a) of the support plate (1) meets the requirement; and if the angle characteristic value (a) of the supporting plate (1) does not meet the requirement, repeating the steps 1 to 6 until the angle characteristic value (a) of the supporting plate (1) meets the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134221.1A CN106824686B (en) | 2017-03-08 | 2017-03-08 | Device and method for removing protrusions on sprayed surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134221.1A CN106824686B (en) | 2017-03-08 | 2017-03-08 | Device and method for removing protrusions on sprayed surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106824686A CN106824686A (en) | 2017-06-13 |
| CN106824686B true CN106824686B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710134221.1A Active CN106824686B (en) | 2017-03-08 | 2017-03-08 | Device and method for removing protrusions on sprayed surface |
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| CN106824686A (en) | 2017-06-13 |
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