A precise dispensing system for OLED display screen

Abstract

The application discloses a precise dispensing system for an OLED display screen, which comprises a conveying support, a fixed vertical plate is arranged at the top end of the conveying support, a movable vertical plate is arranged in parallel on one side of the fixed vertical plate, a first supporting half roller and a second supporting half roller are rotatably arranged on the sides of the fixed vertical plate and the movable vertical plate which are close to each other, a first driving roller and a second driving roller are fixed on the sides of the first supporting half roller and the second supporting half roller which are far away from each other, the first supporting half roller and the second supporting half roller can slide relative to each other but cannot rotate relative to each other, a pressing mechanism is arranged on the fixed vertical plate and the movable vertical plate, a cutting mechanism and a transfer conveying belt are arranged on one side of the conveying support, and the first driving rollers are synchronously driven through first rotating motors, belt pulleys and belts which are sequentially connected between the belt pulleys. The application integrates the conveying, slitting and dispensing functions of the packaging panel, and can greatly improve the dispensing efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the OLED display screen processing technical field, especially to a precise dispensing system for OLED display screen. BACKGROUND

[0002] The OLED device in the OLED (Organic Light Emitting Diode) display screen is sensitive to the external environment, for example, the organic light emitting unit and the electrode are easy to fail under the action of water and oxygen and other pollutants. In order to ensure the light emitting performance of the OLED display screen, the OLED device needs to be packaged to isolate water and oxygen and other pollutants, so as to prevent water and oxygen and other pollutants from invading into the OLED device, thereby prolonging the service life of the OLED display screen.

[0003] In the related art, the OLED display screen usually includes a substrate with an OLED device, a packaging cover plate and a Frit (glass powder) packaging layer, the packaging cover plate is located on the substrate, the Frit packaging layer is located between the packaging cover plate and the substrate, and the packaging cover plate and the substrate are bonded through the Frit packaging layer.

[0004] In the process of processing, the edge position of the packaging cover plate needs to be dispensed by the dispensing machine, and then bonded with the substrate to achieve the packaging effect. In the prior art, the packaging cover plate needs to be slitting during production, and then can be used. During the conveying process of the packaging cover plate, the phenomenon of slipping easily occurs, which causes the packaging cover plate to deviate, causing trouble for subsequent slitting, thereby affecting the efficiency of the entire dispensing process. SUMMARY

[0005] In order to solve the problems mentioned in the background art, the present application provides a precise dispensing system for OLED display screen.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A precise dispensing system for OLED display screen, comprising a conveying support, a fixed vertical plate is installed at the top end of the conveying support, a moving vertical plate is arranged in parallel on one side of the fixed vertical plate, a first support half roller and a second support half roller are rotatably installed on the side of the fixed vertical plate and the moving vertical plate which are close to each other, a first drive roller and a second drive roller are fixed on the side of the first support half roller and the second support half roller which are away from each other, the first support half roller and the second support half roller can slide relative to each other and cannot rotate relative to each other, a pressing mechanism is installed on the fixed vertical plate and the moving vertical plate, a cutting mechanism and a transfer conveyor belt are arranged on one side of the conveying support, and an automatic dispensing machine is installed above the transfer conveyor belt.

[0008] Preferably, the first drive rollers are synchronously driven by a first rotary motor, a pulley, and a belt that is connected end to end between the pulleys. Similarly, the second drive rollers are synchronously driven by a pulley and a belt.

[0009] Preferably, the pressing mechanism includes a connecting frame fixed on a fixed vertical plate and a movable vertical plate. Multiple vertically arranged first guide rods are fixed at the top of the connecting frame. A lifting bracket is provided at the top of the connecting frame. The first guide rods movably pass through the lifting bracket, and a spring is sleeved on the outer side of the first guide rod near the top. Pressing rollers are rotatably installed on the lifting bracket at positions corresponding to the first drive roller and the second drive roller.

[0010] Preferably, multiple horizontally arranged second guide rods are fixed on the fixed vertical plate, the second guide rods movably pass through the movable vertical plate, and a cylinder is installed between the fixed vertical plate and the movable vertical plate.

[0011] Preferably, the first support half-roller has a plurality of mating protrusions on the side near the second support half-roller, and the second support half-roller has a plurality of mating guide grooves on the side near the first support half-roller, with the mating protrusions and guide grooves corresponding one-to-one and slidingly mating.

[0012] Preferably, the cutting mechanism includes a horizontal push box, the output end of which is fixed with a cutting machine, and the horizontal push box pushes the cutting machine to move horizontally back and forth.

[0013] Preferably, a second rotary motor is fixed to the top of the horizontal push box, and two synchronous pulleys are rotatably installed on the inner wall of the top of the horizontal push box. One of the synchronous pulleys is driven by the second rotary motor, and the two synchronous pulleys are driven by a synchronous belt. A slider is horizontally slidably installed on the horizontal push box. A rectangular groove is opened at the top of the slider, and an actuating rod is fixed to the bottom of the synchronous belt. The bottom of the actuating rod extends to the rectangular groove.

[0014] Preferably, a connecting rod is fixed to the bottom end of the slider, and the bottom end of the connecting rod extends movably to the outside of the horizontal push box and is fixed to the cutting machine.

[0015] Preferably, a vertically arranged elastic telescopic rod is fixed to one side of the cutting machine, and a one-way push plate is fixed to the bottom end of the elastic telescopic rod. One side of the one-way push plate is an inclined surface.

[0016] Preferably, a cutting support platform is provided on the side of the transfer conveyor belt near the conveyor support, and the top of the cutting support platform is equipped with rollers and a vacuum suction cup.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The two adjacent pulleys are driven by a belt, so that each first drive roller and the second drive roller have the same rotational angular velocity, so that the transmission speed on both sides of the packaging panel is consistent, reducing the possibility of slippage. The pressing mechanism applies downward pressure to the packaging panel, thereby increasing the static friction between the packaging panel and the first drive roller and the second drive roller, thus pushing the packaging panel forward. Moreover, since the same pressure can be applied from both sides of the packaging panel, compared with the traditional conveyor belt conveyor, the packaging panel is less likely to slip, the conveying direction is stable, and it is less likely to cause skew.

[0019] 2. Due to the guiding effect of the first guide rod, the lifting bracket can move up and down. The spring force can push the lifting bracket downward, so that the pressing roller can always keep the pressing state downward, thereby pressing the packaging panel from the top of the packaging panel. This not only prevents the packaging panel from slipping during the conveying process, but also prevents the packaging panel from tilting and shaking due to force during the cutting process, ensuring the straightness of the cut.

[0020] 3. By adding an elastic telescopic rod and a one-way pusher plate, the horizontal push box pushes the cutting machine to move horizontally back and forth during the cutting process. During the cutting process, the cutting machine moves from the side closer to the transfer conveyor belt to the side farther away from the transfer conveyor belt. At this time, the inclined side of the one-way pusher plate faces the packaging panel. Due to the guiding effect of the inclined side, the one-way pusher plate cannot push the packaging panel. At this time, the elastic telescopic rod is compressed, and the one-way pusher plate slides over the surface of the packaging panel. After the packaging panel is cut off, there is a support platform below the packaging panel that is slightly higher than the height of the transfer conveyor belt, which catches the cut packaging panel segment. When the one-way pusher plate moves and resets with the direction of the cutting machine, the other side of the one-way pusher plate faces the packaging panel segment, thereby automatically pushing the packaging panel segment onto the transfer conveyor belt and transporting it away, achieving the purpose of automatically transferring the packaging panel.

[0021] 4. By extending and shortening the cylinder, the moving vertical plate can be moved horizontally relative to the fixed vertical plate, thereby adjusting the distance between the fixed vertical plate and the moving vertical plate, so as to make adaptive adjustments according to the packaging panel of different widths.

[0022] 5. When the extension and retraction of the cylinder causes the moving vertical plate to move horizontally relative to the fixed vertical plate, the cooperating protrusion slides in the guide groove, which can ensure that the first support half roller and the second support half roller can rotate together and can always provide bottom support force to the packaging panel.

[0023] 6. By adding a cutting support table, the vacuum suction cup can generate suction on the bottom of the packaging panel, so that the packaging panel will not move during the cutting process. When the vacuum suction cup is not working, the presence of the roller can reduce the friction between the packaging panel and the top of the cutting support table, making it easier to transfer the cut packaging panel to the transfer conveyor belt. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is the front view of the present invention;

[0026] Figure 2 for Figure 1 Enlarged detail image of position A in the middle;

[0027] Figure 3 This is a top view of the present invention;

[0028] Figure 4 for Figure 2 Enlarged detail image of position B in the middle;

[0029] Figure 5 This is an exploded view showing the fit between the second support half-roller and the first support half-roller of the present invention.

[0030] Figure 6 This is a right-view perspective view of the present invention;

[0031] Figure 7 This is a left-view perspective perspective view of the present invention;

[0032] Figure 8 This is a perspective view of the invention from an upward angle;

[0033] Figure 9 This is an exploded view of the interior of the horizontal push box of the present invention;

[0034] Figure 10 This is a rear view of the present invention;

[0035] Figure 11 This is an enlarged detail view of the cutting support platform in this invention;

[0036] In the diagram: 1. Conveying bracket; 2. Moving vertical plate; 201. Second support half roller; 202. Second drive roller; 203. Guide groove; 3. Fixed vertical plate; 301. First support half roller; 302. First drive roller; 303. Matching protrusion; 304. Cylinder; 4. Pulley; 401. First rotary motor; 5. Connecting frame; 501. First guide rod; 502. Lifting bracket; 503. Spring; 504. Pressure roller; 6. Horizontal push box; 601. Second rotary motor; 602. Synchronous pulley; 603. Synchronous belt; 604. Slider; 605. Rectangular chute; 606. Actuating rod; 607. Connecting rod; 7. Cutting machine; 701. Elastic telescopic rod; 702. One-way push plate; 8. Transfer conveyor belt; 9. Second guide rod; 10. Cutting support table; 1011. Roller; 1012. Vacuum suction cup; 11. Automatic dispensing machine. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Reference Figures 5-7 A precision dispensing system for OLED displays includes a conveyor bracket 1, a fixed vertical plate 3 mounted on the top of the conveyor bracket 1, a movable vertical plate 2 arranged parallel to one side of the fixed vertical plate 3, a first support half roller 301 and a second support half roller 201 rotatably mounted on the sides of the fixed vertical plate 3 and the movable vertical plate 2 that are close to each other, a first drive roller 302 and a second drive roller 202 fixed on the sides of the first support half roller 301 and the second support half roller 201 that are far from each other, the first support half roller 301 and the second support half roller 201 can slide relative to each other but cannot rotate relative to each other, a pressing mechanism is mounted on both the fixed vertical plate 3 and the movable vertical plate 2, a cutting mechanism and a transfer conveyor belt 8 are provided on one side of the conveyor bracket 1, an automatic dispensing machine 11 is mounted above the transfer conveyor belt 8, the automatic dispensing machine 11 is used to dispense glue on the edges of the encapsulated panel;

[0040] When the second support half roller 201 rotates, it can drive the second support half roller 201 to rotate. When conveying the packaging panel, it is placed at the top of the second support half roller 201 and the first support half roller 301. The two sides of the packaging panel extend to the top of the first drive roller 302 and the second drive roller 202. The pressing mechanism applies downward pressure to the packaging panel, thereby increasing the static friction between the packaging panel and the first drive roller 302 and the second drive roller 202, thus pushing the packaging panel forward. Moreover, since the same pressure can be applied from both sides of the packaging panel, compared with the traditional conveyor belt conveyor, the packaging panel is less likely to slip, the conveying direction is stable, and it is less likely to cause skew.

[0041] The first drive rollers 302 are synchronously driven by the first rotary motor 401, the pulley 4, and the belts that are connected end to end between the pulleys 4. Similarly, the second drive rollers 202 are synchronously driven by the pulleys 4 and the belts.

[0042] The two adjacent pulleys 4 are driven by a belt, so that each first drive roller 302 and the second drive roller 202 have the same rotational angular velocity, so that the transmission speed on both sides of the packaging panel is consistent and the possibility of slippage is reduced.

[0043] Example 2

[0044] Reference Figure 10 The pressing mechanism includes a connecting frame 5 fixed on the fixed vertical plate 3 and the movable vertical plate 2. The top of the connecting frame 5 is fixed with multiple vertically arranged first guide rods 501. The top of the connecting frame 5 is provided with a lifting bracket 502. The first guide rods 501 move through the lifting bracket 502. A spring 503 is sleeved on the outer side of the first guide rod 501 near the top. Pressing rollers 504 are rotatably installed on the lifting bracket 502 at positions corresponding to the first drive roller 302 and the second drive roller 202.

[0045] Due to the guiding effect of the first guide rod 501, the lifting bracket 502 can move up and down. The thrust of the spring 503 can push the lifting bracket 502 downward, so that the pressing roller 504 can always keep in a downward pressing state, thereby pressing the packaging panel from the top of the packaging panel. This not only prevents the packaging panel from slipping during the conveying process, but also prevents the packaging panel from deflecting and shaking due to force during the cutting process, ensuring the straightness of the cut.

[0046] like Figure 8Multiple horizontally arranged second guide rods 9 are fixed on the fixed vertical plate 3. The second guide rods 9 movably pass through the movable vertical plate 2. A cylinder 304 is installed between the fixed vertical plate 3 and the movable vertical plate 2. By extending and shortening the cylinder 304, the movable vertical plate 2 can be moved horizontally relative to the fixed vertical plate 3, thereby adjusting the distance between the fixed vertical plate 3 and the movable vertical plate 2, so as to make adaptive adjustments according to the packaging panel of different widths.

[0047] Example 3

[0048] Reference Figure 5 The first support half roller 301 has multiple mating protrusions 303 on the side near the second support half roller 201, and the second support half roller 201 has multiple mating guide grooves 203 on the side near the first support half roller 301. The mating protrusions 303 and the guide grooves 203 correspond one-to-one and slide in fit.

[0049] When the extension and retraction of the cylinder 304 causes the moving vertical plate 2 to move horizontally relative to the fixed vertical plate 3, the protrusion 303 slides in the guide groove 203, which can ensure that the first support half roller 301 and the second support half roller 201 can rotate together and always provide bottom support force to the packaging panel.

[0050] Example 4

[0051] Reference Figure 1 , 2 The cutting mechanism includes a horizontal push box 6, with a cutting machine 7 fixed at the output end of the horizontal push box 6, and the horizontal push box 6 pushes the cutting machine 7 to move horizontally back and forth.

[0052] The top of the horizontal push box 6 is fixed with a second rotary motor 601. Two synchronous pulleys 602 are rotatably installed on the inner wall of the top of the horizontal push box 6. One of the synchronous pulleys 602 is driven by the second rotary motor 601. The two synchronous pulleys 602 are transmitted through a synchronous belt 603. A slider 604 is horizontally slidably installed in the horizontal push box 6. A rectangular groove 605 is opened at the top of the slider 604. A toggle rod 606 is fixed at the bottom of the synchronous belt 603. The bottom of the toggle rod 606 extends to the rectangular groove 605.

[0053] In order to drive the cutting machine 7 to move horizontally back and forth to complete the segmented cutting of the packaged panel, the second rotary motor 601 can drive one of the synchronous pulleys 602 to rotate, thereby driving the synchronous belt 603 to continuously circulate around the outside of the synchronous pulley 602, thereby driving the toggle lever 606 to follow the circulation. Since the toggle lever 606 is inserted in the rectangular slide groove 605, it can drive the slider 604 to move horizontally back and forth over a long distance, thereby enabling the segmented cutting of packaged panels of various widths.

[0054] Among them, the bottom end of the slider 604 is fixed with a connecting rod 607, the bottom end of the connecting rod 607 extends movably to the outside of the horizontal push box 6 and is fixed with the cutting machine 7, a vertically set elastic telescopic rod 701 is fixed on one side of the cutting machine 7, a one-way push plate 702 is fixed at the bottom end of the elastic telescopic rod 701, and one side of the one-way push plate 702 is an inclined surface.

[0055] By adding an elastic telescopic rod 701 and a one-way push plate 702, the horizontal push box 6 pushes the cutting machine 7 to move horizontally back and forth during the cutting process. During the cutting process, the cutting machine 7 moves from the side close to the transfer conveyor belt 8 to the side away from the transfer conveyor belt 8. At this time, the inclined side of the one-way push plate 702 faces the packaging panel. Due to the guiding effect of the inclined side, the one-way push plate 702 cannot push the packaging panel. At this time, the elastic telescopic rod 701 is compressed, and the one-way push plate 702 slides over the surface of the packaging panel. After the packaging panel is cut, there is a support platform below the packaging panel that is slightly higher than the height of the transfer conveyor belt 8, which catches the cut packaging panel segment. When the one-way push plate 702 moves and resets with the direction of the cutting machine 7, the other side of the one-way push plate 702 faces the packaging panel segment, so that the packaging panel segment can be automatically pushed onto the transfer conveyor belt 8 and transported away, thereby achieving the purpose of automatically transferring the packaging panel.

[0056] Example 5

[0057] Reference Figure 11 A cutting support platform 10 is provided on the side of the transfer conveyor belt 8 near the conveyor bracket 1. The top of the cutting support platform 10 is equipped with rollers 1011 and vacuum suction cups 1012. The vacuum suction cups 1012 can generate suction on the bottom of the packaging panel, so that the packaging panel will not move during the cutting process. When the vacuum suction cups 1012 are not working, the presence of rollers 1011 can reduce the friction between the packaging panel and the top of the cutting support platform 10, so that the cut packaging panel can be transferred to the transfer conveyor belt 8 more easily.

[0058] Working principle:

[0059] The first step is to adjust the distance between the fixed vertical plate 3 and the movable vertical plate 2 according to the width of the packaging panel. The movable vertical plate 2 can be pushed closer to and further away from the fixed vertical plate 3 by the cylinder 304. Adjust it so that the two sides of the packaging panel just extend to the positions of the first drive roller 302 and the second drive roller 202.

[0060] The second step is to turn on the first rotary motor 401 to drive each of the second drive rollers 202 to rotate synchronously, which in turn drives the second support half roller 201 and the first support half roller 301 to rotate, which in turn drives the second drive roller 202 to rotate, thereby pushing the packaging panel forward and moving the packaging panel to the position of the cutting mechanism.

[0061] The third step involves segmenting the packaging panel using a cutting mechanism. During the cutting process, the horizontal push box 6 pushes the cutting machine 7 to move horizontally back and forth. As the cutting machine 7 cuts, it moves from the side closest to the transfer conveyor belt 8 toward the side furthest from the transfer conveyor belt 8. At this time, the inclined side of the one-way push plate 702 faces the packaging panel. Due to the guiding effect of the inclined side, the one-way push plate 702 cannot push the packaging panel. At this time, the elastic telescopic rod 701 is compressed, and the one-way push plate 702 slides over the surface of the packaging panel. After the packaging panel is cut, there is a support platform below the packaging panel that is slightly higher than the height of the transfer conveyor belt 8, which catches the cut packaging panel segment. When the one-way push plate 702 moves and resets with the direction of the cutting machine 7, the other side of the one-way push plate 702 faces the packaging panel segment, thus automatically pushing the packaging panel segment onto the transfer conveyor belt 8 and transporting it away.

[0062] The fourth step involves transporting the packaged panel to the automatic dispensing machine 11, where the automatic dispensing machine 11 applies adhesive to the edges of the panel. After dispensing, the panel is transported to the next processing unit for bonding with the display substrate.

[0063] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A precision dispensing system for OLED displays, comprising a delivery bracket (1), characterized in that: The top of the conveying bracket (1) is equipped with a fixed vertical plate (3), and a movable vertical plate (2) is arranged parallel to one side of the fixed vertical plate (3). The fixed vertical plate (3) and the movable vertical plate (2) are respectively rotatably installed on the side close to each other. The first support half roller (301) and the second support half roller (201) are respectively fixed on the side far away from each other. The first support half roller (301) and the second support half roller (201) can slide relative to each other but cannot rotate relative to each other. A pressing mechanism is installed on both the fixed vertical plate (3) and the movable vertical plate (2). A cutting mechanism and a transfer conveyor belt (8) are provided on one side of the conveying bracket (1). An automatic dispensing machine (11) is installed above the transfer conveyor belt (8). The pressing mechanism includes a connecting frame (5) fixed on a fixed vertical plate (3) and a movable vertical plate (2). The top of the connecting frame (5) is fixed with multiple vertically arranged first guide rods (501). The top of the connecting frame (5) is provided with a lifting bracket (502). The first guide rods (501) move through the lifting bracket (502). A spring (503) is sleeved on the outer side of the first guide rod (501) near the top. Pressing rollers (504) are rotatably installed on the lifting bracket (502) at positions corresponding to the first drive roller (302) and the second drive roller (202). The first support half roller (301) has a plurality of mating protrusions (303) on the side near the second support half roller (201), and the second support half roller (201) has a plurality of mating guide grooves (203) on the side near the first support half roller (301). The mating protrusions (303) and the guide grooves (203) correspond one-to-one and slide together. The cutting mechanism includes a horizontal push box (6), and a cutting machine (7) is fixed at the output end of the horizontal push box (6). The horizontal push box (6) pushes the cutting machine (7) to move horizontally back and forth. The cutting machine (7) has a vertically arranged elastic telescopic rod (701) fixed on one side, and a one-way push plate (702) fixed at the bottom end of the elastic telescopic rod (701). One side of the one-way push plate (702) is an inclined surface. The top of the horizontal push box (6) is fixed with a second rotary motor (601). Two synchronous pulleys (602) are rotatably installed on the inner wall of the top of the horizontal push box (6). One of the synchronous pulleys (602) is driven by the second rotary motor (601). The two synchronous pulleys (602) are driven by a synchronous belt (603). The horizontal push box (6) is horizontally slidably installed with a slider (604). A rectangular groove (605) is opened at the top of the slider (604). A toggle rod (606) is fixed at the bottom of the synchronous belt (603). The bottom of the toggle rod (606) extends into the rectangular groove (605). The transfer conveyor belt (8) is provided with a cutting support table (10) on the side near the conveying bracket (1). The top of the cutting support table (10) is equipped with a roller (1011) and a vacuum suction cup (1012).

2. The precision dispensing system for OLED displays according to claim 1, characterized in that: Each of the first drive rollers (302) is synchronously driven by a first rotary motor (401), a pulley (4) and a belt that is connected end to end between each pulley (4). Similarly, each of the second drive rollers (202) is synchronously driven by a pulley (4) and a belt.

3. The precision dispensing system for OLED displays according to claim 1, characterized in that: Multiple horizontally arranged second guide rods (9) are fixed on the fixed vertical plate (3). The second guide rods (9) move through the movable vertical plate (2), and a cylinder (304) is installed between the fixed vertical plate (3) and the movable vertical plate (2).

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