KR102093298B1 - 5-axis dispensing appratus and dispensing method of thereof - Google Patents

Abstract

The 5-axis dispensing apparatus according to an embodiment of the present invention includes: an injection unit for spraying fluid to a display panel; And when the spraying unit injects the fluid into the edge region of the display panel, sets an application amount that causes the fluid to be uniformly applied to the edge region, and controls the injection unit to inject the fluid in response to the application amount. It includes a control unit.

Description

5-axis dispensing device and its dispensing method {5-AXIS DISPENSING APPRATUS AND DISPENSING METHOD OF THEREOF}

The present invention relates to a 5-axis dispensing device and a dispensing method thereof, and more particularly, to a 5-axis dispensing device capable of performing precise and uniform dispensing on an edge of a panel side surface and a dispensing method thereof .

The display panel is composed of a plurality of plate-shaped plates, and performs a process of sealing the panel edges in the manufacturing process. In this case, the sealing process is performed by a panel edge dispensing device.

The panel edge requires precise sealing to achieve the purpose of preventing foreign matter intrusion, waterproofing function, and extending the life of organic matter. To this end, the adhesive material application position and application amount should be set to the optimum conditions according to the spray condition of the nozzle and the viscosity of the liquid to be sprayed.

In addition, for precise dotting of the adhesive, piezo actuators are more frequently used than coating with conventional air actuators. Here, the piezo actuator may be a solid-state actuator using the piezo adverse effect.

Furthermore, in recent years, as the bezel of the panel gradually decreases, there is a limitation that it is impossible to achieve precise dotting and sealing only with flat dispensing.

An object of the present invention is to provide a 5-axis dispensing apparatus capable of performing precise and uniform dispensing on an edge of a panel side surface and a dispensing method thereof.

In addition, an object of the present invention is to provide a 5-axis dispensing device and a dispensing method thereof, capable of performing diagonal / side spraying, spray centerline measurement, and quality inspection on the edge of the panel side.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are obvious to those skilled in the art to which the embodiments proposed by the following description belong. It can be understood.

Dispensing apparatus according to an embodiment of the present invention, the injection unit for injecting a fluid to the display panel; And when the spraying unit injects the fluid into the edge region of the display panel, sets an application amount that causes the fluid to be uniformly applied to the edge region, and controls the injection unit to inject the fluid in response to the application amount. It includes a control unit.

Dispensing method of the dispensing apparatus according to another embodiment of the present invention, when spraying a fluid to the edge region of the display panel, setting the amount of coating to ensure that the fluid is uniformly applied to the edge region; And injecting the fluid in response to the application amount.

According to embodiments according to the present invention, it is possible to perform precise and uniform dispensing on the edge of the panel side.

In addition, according to embodiments of the present invention, it is possible to perform diagonal / side spraying, spray centerline measurement and quality inspection on the edge of the panel side.

1 is a view for explaining the operation of the dispensing apparatus according to an embodiment of the present invention.
2 is a view for explaining the configuration of the dispensing device according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a dispensing device according to an embodiment of the present invention.
4 is a view showing a fluid injection graph in the dispensing device according to an embodiment of the present invention.
5 is a view showing a spray liquid application graph in the dispensing apparatus according to an embodiment of the present invention.
6A and 6B are diagrams for explaining a method of adjusting a fluid application amount in a dispensing device according to an embodiment of the present invention.
7 is an example of a graph for explaining a method for adjusting the fluid discharge power in the dispensing device according to an embodiment of the present invention.
8 is another example of a graph for explaining a method for controlling fluid discharge power in a dispensing device according to an embodiment of the present invention.
9A to 9C are diagrams for explaining a dispensing method in the dispensing apparatus according to an embodiment of the present invention.
10A to 10C are diagrams for explaining a method of controlling a coating amount in a dispensing device according to an embodiment of the present invention.
11 is a view for explaining a dotting amount by a coating amount control method in a dispensing device according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the technical spirit of the present invention is not limited by the embodiments described below, and other implementations that fall within the scope of the technical spirit of the present invention or other inventions that are backward due to the addition, modification, and deletion of other components. You can easily suggest examples.

The terminology used in the present invention has been selected, as far as possible, the general terminology widely used in connection with the present technology, but in special cases, the term is arbitrarily selected by the applicant, and in this case, its meaning is described in detail in the description of the applicable invention. Therefore, it is revealed in advance that the present invention should be grasped as the meaning of the term rather than the name of the simple term. In the descriptions below, the word 'comprising' does not exclude the presence of elements or steps other than those listed.

1 is a view for explaining the operation of the 5-axis dispensing apparatus according to an embodiment of the present invention.

The 5-axis dispensing device 100 (hereinafter, also referred to as a dispensing device) according to an embodiment of the present invention applies an adhesive to a panel edge to seal the display panel (hereinafter, also referred to as a panel) 10 Fencing can be performed. To this end, the 5-axis dispensing device 100 may include a spray nozzle 110 for dotting the adhesive.

According to an embodiment, the 5-axis dispensing apparatus 100 may directly move the 5-axis dispensing apparatus 100, rotate only the spray nozzle 110, or rotate the table rotating equipment on which the display panel 10 is placed. It can be implemented in a manner that performs dispensing. In FIG. 1, a method of dispensing by moving or rotating a 5-axis dispensing device 100 and a table rotating equipment (not shown) will be described. This method can be used to dispense a small panel included in a mobile terminal or the like.

The 5-axis dispensing device 100 may move in a vertical direction and / or a horizontal direction. Specifically, the 5-axis dispensing device 100 may move in the vertical direction on the vertical axis, or in the horizontal direction on the horizontal axis.

The display panel 10 can be placed on a table rotating equipment. In this case, the table rotating equipment can rotate clockwise or counterclockwise relative to the center on the horizontal plane. In addition, the table rotating equipment can move up, down, left, and right in a three-dimensional space.

Referring to FIG. 1, the 5-axis dispensing apparatus 100 has an XZ structure that moves in the vertical direction on the Z axis, which is a vertical axis, or in the horizontal direction, on the X axis which is a horizontal axis. In addition, the table rotating equipment has a YC structure that rotates on the C axis or moves in the vertical direction on the Y axis. As described above, when the 5-axis dispensing apparatus 100 and the table rotating equipment have an XZ-YC structure, space required for dispensing the display panel 10 can be saved.

When the 5-axis dispensing device 100 performs side dispensing, the side dispensing path may be generated based on motion on the XYC axis. Here, the path on the XYC axis can be generated by a CAD drawing or by vision measurement.

When the 5-axis dispensing device 100 performs dispensing at the edge of the display panel 10, the dispensing frequency (Hz) may be adjusted. Thereby, the 5-axis dispensing apparatus 100 can adjust the dotting frequency (Hz) proportional to the speed.

2 is a view for explaining the configuration of a 5-axis dispensing device according to an embodiment of the present invention.

Specifically, FIG. 2 describes a method of dispensing by rotating only the spray nozzle 110. This method can be used to dispense a large panel included in a TV or image processing device.

As shown in Figure 2, the 5-axis dispensing device 100 according to an embodiment of the present invention UV curing light guide 210, distance sensor 220, chemical tank 230, vision 240, Jet Valve 250, a piezo controller 260, and may include a main controller 270.

When the UV curing light guide 210 performs sealing by the UV curing method, it may guide the path of the UV curing light. Here, the sealing by the UV curing method may be a sealing method in which UV curing light is mounted on a nozzle head and moves along a sealing path to cure an installation side.

The distance sensor 220 may measure the height and thickness of the panel 10, dotting intervals, and the like.

In addition, the distance sensor 220 can measure the height and distance between the Jet Valve 250 and the panel 10. In this case, the fluid is injected from the Jet Valve 250, it may be applied to the panel 10.

In this case, the distance sensor 220 may measure the distance, height, and spacing, etc., in a non-contact manner.

Since the 5-axis dispensing device 100 performs non-contact dotting, the dotting interval may be non-uniform. Therefore, in order to keep the dotting interval constant, the distance sensor 220 may accurately compensate for the dotting interval or measure the degree of inclination in the horizontal.

The chemical tank 230 may store an adhesive applied to the panel 10. Here, the type of adhesive may be changed in correspondence to the type or thickness of the panel 10 to be applied, a dotting method, a sealing method, and the like.

The vision 240 is equipped with a smart vision CCD camera, and can capture images of detailed components of the 5-axis dispensing device 100 and convert them into high resolution digital files.

Specifically, the vision 240 may include a vertical vision and a side vision.

The up and down vision can be used to extract the sealing path. Up and down vision can be extracted by looking at the top of the panel to measure the vision of the precise dotting of the corner section.

Lateral vision can be used to measure the sealing centerline. In this case, the side vision can correct the Z position by measuring the application centerline on the side of the panel.

By using the up and down vision and the side vision at the same time, the sealing quality can be inspected. By performing sealing thickness, width, and foreign material inspection, quality can be checked after dotting. In this case, the up and down vision and the side vision move in a normal path and can be installed such that the vision focus position is centered on the C axis.

The Jet Valve 250 may rotate in a predetermined direction according to the Jet Nozzle method to spray the adhesive on the panel 10.

According to one embodiment, the Jet Nozzle method may be a pneumatic injection method. In this case, the Jet Valve 250 can adjust the injection frequency up to 200 Hz, and it can be controlled to have a predetermined interval between injections while spraying in an on / off method.

According to another embodiment, the Jet Nozzle method may be a piezo injection method. In this case, the Jet Valve 250 can adjust the injection frequency to 500 Hz, and precise control is possible. When the frequency is on / off, the open / close time of the nozzle can be adjusted, and the induction intensity can be adjusted. For example, in the case of the PICO Pulse nozzle of Nordson, the nozzle is replaceable and is designed to be used by changing the jetting conditions according to the viscosity.

Jet Valve 250 may be a protruding nozzle. According to one embodiment, the Jet Valve 250 may be implemented as a cone-type nozzle.

The piezo controller 260 may control the Jet Valve 250 so that the Jet Valve 250 jets according to the corresponding Jet Nozzle method. To this end, the piezo controller 260 may control on / off time of frequency, frequency cycle period (1 / Hz), and the like. In addition, the piezo controller 260 may store a plurality of recipes and set any one of them by calling IO or communication to control the precise dotting amount.

The main control unit 270 may control the piezo control unit 260 to receive a control command and perform dispensing of the panel 10.

To this end, an SD card may be inserted into the main control unit 270. Here, the SD card is a recipe scheduler, and may be configured as a text file. In the SD card, scheduling is set in dot count units (times), so it is not easy to map to a location. 99 recipes can be stored, but there are only 10 assigned contacts, so up to 10 recipes can be changed in real time.

3 is a block diagram showing the configuration of a dispensing device according to an embodiment of the present invention.

The 5-axis dispensing apparatus 100 according to an embodiment of the present invention may include an injection unit 310, a moving unit 320, a sensing unit 330, and a control unit 340.

The injection unit 310 may spray fluid to the panel 10.

In this case, the injection unit 310 may inject fluid through the injection nozzle 110 or the Jet Valve 250.

Specifically, the injection unit 310 may spray the fluid based on the dispensing parameter. Here, the dispensing parameters may include pulse, cycle, count, close volts, stroke, open, close, and the like. Dispensing parameters will be described later in detail in the description of FIG. 4.

The moving part 320 may move the injection part 310 along the sealing area of the panel 10.

The sensing unit 330 may sense data related to the dispensing operation of the 5-axis dispensing device 100.

Specifically, the sensing unit 330 may measure the height and thickness of the panel 10, the dotting interval, the degree of inclination in the horizontal, the height and distance between the Jet Valve 250 and the panel 10. To this end, the sensing unit 330 may include a distance sensor 220.

In addition, the sensing unit 330 may capture an image of detailed components of the 5-axis dispensing device 100 and convert it into a high resolution digital file. To this end, the sensing unit 330 may include a vision 240 composed of up and down vision and side vision.

The control unit 340 may control the injection unit 310, the moving unit 320, and the sensing unit 330 so that the 5-axis dispensing device 100 performs a dispensing operation.

Specifically, the control unit 340 may change at least one of the plurality of dispensing parameters when the injection unit 310 sprays at the edge region among the sealing regions.

The control unit 340 may change at least one of the moving speed and the direction switching speed of the moving unit 320 when the moving unit 320 moves the edge region among the sealing regions.

In addition, the control unit 340 may control the sensing unit 330 to detect data related to dispensing.

4 is a view showing a fluid injection graph in the dispensing device according to an embodiment of the present invention.

Specifically, Figure 4 shows the injection voltage over time.

The 5-axis dispensing device 100 may spray fluid based on dispensing parameters. Here, the dispensing parameters may include pulse, cycle, count, close volts, stroke, open, close, and the like.

The pulse (PULSE) can set the time the valve is open. In this case, the longer the wave, the longer the valve opening time, and the shorter the wave, the shorter the valve opening time. Here, the valve may be a Jet Valve 250.

The cycle CYCLE may set a repetitive cycle time during which the fluid is injected. For example, the cycle CYCLE may set a time between fluid application.

The number of times (COUNT) may set the number of times the fluid is applied.

CLOSE VOLTS can set the closing voltage of the valve. The higher the closing voltage, the higher the closing pressure proportionally.

The stroke can set the maximum height of the injection tappet. Here, the injection tappet may be a rod that converts the movement of the cam into a linear displacement and transmits it to the valve. In general, the injection tappet can be of a cylindrical shape and can move linearly according to the tappet guide.

OPEN can set the opening speed of the valve. According to an embodiment, the open speed may be 0.2 ms minimum and 250 ms maximum.

CLOSE can set the closing speed of the valve. According to an embodiment, the closing speed may be a minimum of 0.25 ms and a maximum of 200 ms.

5 is a view showing a spray liquid application graph in the dispensing apparatus according to an embodiment of the present invention.

The 5-axis dispensing apparatus 100 according to an embodiment of the present invention may operate in a set system operation mode. Here, the system operation mode may include a time mode (Timed), a continuous mode (Continuous), and an external mode (External).

Timed mode (Timed) can operate for a predetermined time. In this case, when the start signal is input, the 5-axis dispensing apparatus 100 may perform dotting as many times as COUNT by setting pulse (PULSE) and cycle (CYCLE). In this case, the valve may rotate according to the valve opening time (PULSE) set for each valve start signal, the time between fluid application (CYCLE), and the number of fluid application (COUNT).

Continuous mode can operate continuously. In this case, when a start signal is input, the 5-axis dispensing apparatus 100 may continuously dotting with a wave (PULSE) and a cycle (CYCLE) setting. In the continuous mode, the valve rotates according to the set valve open time (PULSE) and the time between fluid application (CYCLE) as long as the valve start signal is activated, and the setting value for the fluid application number (COUNT) is ignored.

The external mode can be operated by an input signal from the outside. In this case, the control unit 340 of the 5-axis dispensing device 100 does not generate a valve driving timing signal. In the external mode, since the control unit 340 acts as a slave to the input signal, it no longer generates the timing signal required to drive the valve.

The method of dispensing the fluid may be changed by a plurality of dispensing parameters.

Specifically, by the wave (PULSE) and the cycle (CYCLE), the dotting amount of the injection liquid can be adjusted. 5, when the pulse (PULSE) is extended from 510 to 520, the dotting amount of the injection liquid increases from 510 'to 520'.

The injection pattern of 1 dot can be adjusted by the open time, the closed time, and the interval between the open and closed ends.

In addition, by the height of the stroke (STROKE), the dotting intensity can be adjusted.

6A and 6B are diagrams for explaining a method of adjusting a fluid application amount in a dispensing device according to an embodiment of the present invention.

6A is a case where the size of a fluid dot is adjusted. The wave time may be a time when the valve is opened and the solution is discharged. Therefore, the dot size of the fluid can be adjusted by controlling the pulse time. In this case, the dot size may increase in response to the length of the wave time.

Referring to FIG. 6A, the cycle (CYCLE) time is fixed and the pulse (PULSE) time is controlled. When the wave time of the drawing 610 shown at the top is increased to the wave time of the drawing 620 shown at the center, the size of the applied dot increases. Referring to the drawing 630 shown at the bottom, in this case, the dot size increases from a solid line to a dotted line. However, even if the wave time changes, the dot interval is the same.

Figure 6b is a case of adjusting the fluid dot spacing. The cycle (CYCLE) time may be one time that the valve remains open and closed. Therefore, by controlling the cycle (CYCLE) time, it is possible to adjust the dot spacing of the fluid. In this case, the dot interval may be widened corresponding to the length of the cycle time. When the dot spacing is excessively wide, a wave phenomenon may occur. In addition, the narrower the dot spacing, the more uniform lines can be created at tighter spacing.

Referring to FIG. 6B, the pulse (PULSE) time is fixed and the cycle (CYCLE) time is controlled. When the cycle time Cycle A of the drawing 640 shown at the top is increased to the cycle time Cycle B of the drawing 650 shown at the center, the applied dot interval increases. In the drawing 660 shown at the bottom, the dot 640 'due to the cycle time Cycle A is shown by a solid line, and the dot 650' by the cycle time Cycle B is shown by a dotted line. Referring to this, when the cycle time increases, the dot interval increases. However, even if the cycle time changes, the dot size is the same.

7 is an example of a graph for explaining a method for adjusting the fluid discharge power in the dispensing device according to an embodiment of the present invention.

By controlling the closed voltage (CLOSE VOLTS), the sealing force of the tappet can be adjusted. According to an embodiment, the closed voltage may be set as 110V as a fixed variable.

In FIG. 7, referring to the drawing at the bottom, as the closing voltage increases in the order of 80 V, 90 V, and 100 V, the tappet descends to a position close to the nozzle. Therefore, the higher the closing voltage, the higher the sealing force of the tappet.

By controlling the stroke (STROKE), it is possible to adjust the rise and fall distance of the tappet (tappet). Specifically, the stroke (STROKE) is a variable that sets the rising and falling distance of the tappet generated by processing tolerances and assembly tolerances for each product. The larger the stroke value, the higher the toe output because it strikes at a higher position. The smaller the stroke value, the lower the toe output.

7, referring to the graph shown at the top, the area of the region generated by the graph corresponds to the earth output. In this case, the area of the area generated by the graph increases as the distance between the rising and falling strokes increases, thereby increasing the earth power. Accordingly, when the height of the stroke in the graph shown at the top is increased from the maximum height of the graph shown by the solid line to the maximum height of the graph shown by the dotted line, the earth power increases by the hatched area 700.

8 is another example of a graph for explaining a method for controlling fluid discharge power in a dispensing device according to an embodiment of the present invention.

By controlling the OPEN, it is possible to control the time to reach the top of the tappet. Here, OPEN may be the opening speed of the valve. According to one embodiment, OPEN is a fixed variable and may be set to 0.25 ms.

By controlling CLOSE, it is possible to control the time to reach the lowest point of the tappet. Here, CLOSE may be a closing speed of the valve. CLOSE can control the impact force on the solution by controlling the closing speed, and may vary depending on the properties of the solution. If the CLOSE is too high, scattering may occur. If it is too low, the force of pushing the solution is insufficient, and condensation may occur at the end of the nozzle.

In the graph shown at the top of FIG. 8, the 5-axis dispensing device 100 controls open (OPEN) and closed (CLOSE) equally. In this case, the opening speed of the valve and the closing speed of the valve are controlled equally, whereby the time to reach the top of the tappet and the time to reach the bottom of the tappet are the same.

On the other hand, in the graph shown at the bottom of FIG. 8, the 5-axis dispensing device 100 controls OPEN and CLOSE differently. Specifically, CLOSE can be controlled smaller than OPEN. In this case, the closing speed of the valve is controlled smaller than the opening speed of the valve, whereby the time to reach the bottom of the tappet is increased more than the time to reach the top of the tappet. In the graph shown at the bottom, when the closing speed of the valve slows from a dotted line to a solid line, the time to reach the lowest point of the tappet increases.

9A to 9C are diagrams for explaining a dispensing method in the dispensing apparatus according to an embodiment of the present invention.

9A shows the operation of the 5-axis dispensing device 100 and a table rotating device (not shown). The table rotating device (not shown) may rotate in a predetermined direction when the display panel 10 is placed on the top. According to an embodiment, the table rotating device (not shown) may rotate clockwise or counterclockwise on a plane. According to another embodiment, the table rotating device (not shown) may rotate clockwise or counterclockwise in an inclined angle with respect to a plane.

The 5-axis dispensing apparatus 100 may perform dispensing at an angle inclined with respect to the display panel 10. According to an embodiment, the angle inclined at an angle may be 45 degrees. In this case, while the 5-axis dispensing device 100 moves along the display panel 10 on a flat surface, the fluid may be injected on the side surface of the panel 10.

The 5-axis dispensing apparatus 100 may perform dotting of the fluid in a non-contact manner while being spaced by a predetermined distance from the display panel 10. In Figure 9a, a predetermined distance may be 1 ~ 1.5mm.

Referring to FIG. 9A (a), the table rotating device (not shown) is placed horizontally with a flat surface, and rotates counterclockwise while the display panel 10 is disposed on the top. In this case, the 5-axis dispensing device 100 performs dotting of the fluid while being inclined at an angle to the display panel 10.

Referring to FIG. 9A (b), the table rotating device (not shown) is inclined at an angle with respect to a flat surface, and rotates counterclockwise while the display panel 10 is disposed on the top. In this case, the 5-axis dispensing device 100 performs dotting of the fluid while being inclined at an angle to the display panel 10.

9B shows the dotting process for the side of the panel. The side surface of the display panel 10 may be formed of a uniform straight area and a non-uniform straight area where irregularities exist. With respect to the display panel 10 configured as described above, when the 5-axis dispensing device 100 is moved or the table rotating device (not shown) is rotated to perform dotting, the tip speed of the nozzle may vary for each area.

The left drawing of FIG. 9B shows a dotting point for the side of the display panel 10, and the right drawing of FIG. 9B enlarges the dotting point for a non-uniform straight region of the display panel 10. Referring to the right drawing of FIG. 9B, dotting is performed in the order of ① point-> ② point-> ③ point-> ④ point-> ⑤ point-> ⑥ point on the non-uniform straight region.

9C is a graph showing the nozzle tip velocity and the amount of fluid dotting at each dotting point shown in FIG. 9B. When the nozzle of the 5-axis dispensing device 100 performs dotting in a non-uniform straight region, the nozzle tip speed may vary in real time. Since the non-uniform linear region has a curved or uneven portion, the 5-axis dispensing apparatus 100 may change the nozzle tip speed in real time when moving the non-uniform linear region. When the nozzle tip speed is changed, the dotting amount of the fluid may be changed correspondingly.

9B and 9C, since the points ①, ③, and ⑥ included in the non-uniform straight region are straight, the nozzle tip speed is the same when passing the corresponding points.

Since the entry section from point ① to point ② and the entry section from point ③ to point ④ are sections that change from a straight line to a curved line, the nozzle tip speed is slow.

After entering the points ② and ④ and ⑤, the speed of the nozzle tip is constant because it is a curved section. In this case, the curved section is set at a slower speed than the straight section.

In addition, since the entry section from point ② to point ③ and the entry section from point ⑤ to point ⑥ are sections that change from a curved form to a straight line, the nozzle tip speed increases.

In this case, the dotting amount increases in the section where the nozzle tip speed is slow, that is, the entry section from point ① to point ②, and the entry section from point ③ to point ④.

In addition, the dotting amount decreases in the section where the nozzle tip speed increases, that is, the entry section from point ② to point ③, and the entry section from point ⑤ to point ⑥.

On the other hand, in a section where the nozzle tip speed is constant, the dotting amount is constant.

10A to 10C are diagrams for explaining a method of controlling a coating amount in a dispensing device according to an embodiment of the present invention.

10A is a case where side coating is performed. Specifically, the panel 10 is disposed on a table rotating device (not shown) arranged on the XY axis, and the Jet Valve rotates based on the C axis.

In order to uniformly control the dotting amount in the application path, the 5-axis dispensing device 100 may control the application amount based on the following [Equation 1].

[식 1]

[Equation 1]

는 x축 상에서의 변위,

는 y축 상에서의 변위,

는 유체의 도포량이다.here,

Is the displacement on the x-axis,

Is the displacement on the y-axis,

Is the amount of fluid applied.

10B is a case where the panel 10 is rotated and the 5-axis dispensing device 100 is inclined and applied. Specifically, as the table rotating device (not shown) arranged on the XY axis rotates, the panel 10 disposed on the top of the table rotating device (not shown) rotates, and the 5-axis dispensing device 100 displays the panel. (10) It is arranged to be inclined to apply. Here, the nozzle head of the 5-axis dispensing device 100 is fixed.

In order to uniformly control the dotting amount in the application path, the 5-axis dispensing device 100 may control the application amount based on the following [Equation 2].

r =

[식 2]

[Equation 2]

Here, x is the coordinate on the x-axis, y is the coordinate on the y-axis, r is the radius of rotation of the panel 10, Δ c is displacement in the C-axis, and Δ s is the amount of fluid applied.

10C is a case where the panel 10 is inclined and rotated based on the inclined surface, and the 5-axis dispensing device 100 is applied vertically. Specifically, while maintaining the nozzle of the 5-axis dispensing device 100 vertically in the direction of gravity, the material (application path) can be dotting while maintaining the posture in the normal direction by XYZ-AC simultaneous 5-axis interpolation. In FIG. 10C, the panel 10 is disposed on a table rotating device (not shown) rotating on the AC axis, and the 5-axis dispensing device 100 is disposed vertically in the Z-axis direction to apply fluid.

In order to uniformly control the dotting amount in the application path, the 5-axis dispensing device 100 may control the application amount based on the following [Equation 3].

[식 3]

[Equation 3]

According to [Equation 3], the coating amount is given as a function of x, y, z, ΔA , Δc . Here, x is the coordinate on the x-axis, y is the coordinate on the y-axis, z is the coordinate on the z-axis, the radius of rotation of the panel 10, Δ A is displacement on the A axis, Δ c is on the C axis The displacement, Δ s, is the amount of fluid applied.

11 is a view for explaining a dotting amount by a coating amount control method in a dispensing device according to an embodiment of the present invention.

The topmost drawing shows each dotting point, and the bottom graph shows the nozzle tip speed at each dotting point. The nozzle tip speed at each dotting point has already been described in the description of FIG. 9C, and thus a description thereof will be omitted.

P is the coating amount when using a single recipe. Here, the recipe may be a predetermined speed at which the nozzle jets the fluid.

When the nozzle tip speed changes, the dotting amount of the fluid changes accordingly. Specifically, the dotting amount increases when the nozzle tip speed becomes slow, and the dotting amount decreases when the nozzle tip speed increases. Accordingly, when the 5-axis dispensing device 100 moves the non-uniform linear region of the side surface of the panel 10, the nozzle tip speed is constant, increases or decreases, and accordingly the dotting amount changes, so that the coating amount is as shown in P. It becomes uneven together.

Q is the coating amount when applying the coating amount control method in the dispensing apparatus according to an embodiment of the present invention. 10A to 10C in order to control the amount of dotting applied to the application path even when the nozzle tip speed changes as the 5-axis dispensing device 100 moves the non-uniform linear region of the side of the panel 10 The coating amount can be controlled based on the equation described. In this case, the application amount becomes uniform as shown in Q.

Although the embodiments have been mainly described above, these are merely examples, and do not limit the present invention, and those skilled in the art to which the present invention pertains are not illustrated above without departing from the essential characteristics of the present embodiment. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiment may be modified. And differences related to these modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.

10: display panel 100: 5-axis dispensing device
110: spray nozzle 210: UV curing light guide
220: distance sensor 230: chemical tank
240: Vision 250: Jet Valve
260: piezo control unit 270: main control unit
310: injection unit 320: moving unit
330: sensing unit 340: control unit

Claims (9)

In the 5-axis dispensing device,
An injection unit that ejects a fluid in a dot form on a display panel; And
When the spraying unit injects the fluid to the edge region of the display panel, a control unit for setting an application amount that causes the fluid to be uniformly applied to the edge region and controlling the injection unit to inject the fluid in response to the application amount Including,
The control unit,
A 5-axis dispensing device that controls the injection unit so as to increase the dotting amount in a section switching from a straight to a curved shape and decrease a dotting amount in a section switching from a curved to a straight shape. According to claim 1,
The dispensing device moves along the side of the display panel,
In the section where the side surface is converted from a straight line to a curved line, the moving speed is reduced,
A 5-axis dispensing device for increasing the movement speed in a section in which the side is switched from the curved form to the straight form. According to claim 2,
The display panel is arranged parallel to the horizontal plane,
The injection portion rotates with respect to the horizontal surface,
The coating amount is a 5-axis dispensing device that is set on the basis of the displacement that the injection portion has moved on the horizontal plane. According to claim 3,
The coating amount (Δ s ) is,
expression

(Here, Δ x is a displacement on the x-axis of the injection portion, Δ y is a displacement on the y-axis of the injection portion, Δ s is the amount of fluid applied) 5-axis dispensing device. According to claim 2,
The display panel is disposed on a horizontal surface to rotate relative to the horizontal surface,
The dispensing device is arranged and fixed obliquely with respect to the display panel,
The coating amount is a 5-axis dispensing device that is set based on a position on the horizontal surface of the display panel and a rotation radius of the display panel. The method of claim 5,
The coating amount (Δ s ) is,
Equation r =

,

(Where x is the coordinates on the x-axis of the display panel, y is the coordinates on the y-axis of the display panel, r is the radius of rotation of the display panel, Δ c is the displacement on the C-axis of the display panel, Δ s is the fluid 5-axis dispensing device set by the coating amount). According to claim 2,
In the dispensing device, the injection part is fixedly arranged perpendicular to the horizontal surface,
The display panel is disposed inclined with respect to the horizontal surface to rotate in a predetermined direction based on the inclined surface,
The coating amount is a 5-axis dispensing device that is set corresponding to the position coordinates and displacement of the display panel. The method of claim 7,
The coating amount (Δ s ) is,
expression

(Where x is the coordinates on the x axis of the display panel, y is the coordinates on the y axis of the display panel, z is the coordinates on the z axis of the display panel, the radius of rotation of the display panel, Δ A is the A axis of the display panel Displacement at, Δ c is the displacement on the C axis of the display panel, Δ s is the amount of fluid applied) is set by a 5-axis dispensing device. In the dispensing method of the dispensing device,
When spraying a fluid in the form of a dot to the edge region of the display panel, setting an application amount of the fluid to be uniformly applied to the edge region; And
Including the step of spraying the fluid corresponding to the application amount,
A method of dispensing a 5-axis dispensing device that increases a dotting amount in a section from a straight line to a curved line and decreases a dotting amount in a section from a curved line to a straight line.

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