CN118025808A - Deviation correcting and conveying device of display panel and ink-jet printing system - Google Patents

Abstract

The application relates to a correction conveying device of a display panel and an inkjet printing system, comprising: the bearing table is provided with a plurality of vent holes on the surface, and the vent holes are communicated with the positive pressure device and the negative pressure device; the linear driving module drives the bearing table to move in the printing direction through the linear driving module; the clamp holder assembly comprises a fixed end and an adsorption end, wherein the adsorption end is rotationally connected to the fixed end and is suitable for adsorbing the edge of the substrate; the lifting assembly comprises a lifting plate and a lifting driving module, the clamp holder assembly is arranged on the lifting plate, the lifting driving module is arranged on the driving end of the linear driving module, and the lifting driving module is in driving connection with the lifting plate. According to the application, after the substrate is rectified through the clamp assembly, the bearing table adsorbs and fixes the substrate, and the substrate moves along with the bearing table in the printing direction, so that the substrate is highly stable and is not easy to deflect when moving in the printing direction, and the printing precision is ensured.

Description

Deviation correcting and conveying device of display panel and ink-jet printing system

Technical Field

The application relates to the technical field of display panel processing equipment, in particular to a correction conveying device and an inkjet printing system of a display panel.

Background

The OLED display panel has advantages of wide color gamut, wide viewing angle, high contrast, high response speed, and the like, and is considered as the most potential next-generation flat display technology. In the traditional OLED device preparation, expensive evaporation equipment is required to be adopted, and the functional layers in the OLED device are prepared with low material utilization rate. The jet printing technology directly prints the functional material ink on the required position, has high material utilization rate and low equipment cost, and is easy to realize the preparation of a large-size display panel, so the jet printing technology becomes one of the most promising technologies in the preparation of novel devices such as OLED (organic light emitting diode).

In OLED inkjet printing, ink drops need to be precisely printed in pixel pits on a substrate, and large-sized substrates need to be moved linearly in a printing direction perpendicular to the printhead motion during printing.

In the related art, when a substrate is printed, the substrate is supported by an air floatation platform, the edge of the substrate is adsorbed by a clamp holder, the substrate is rectified, the clamp holder is driven to move in the printing direction, and the substrate is carried by the clamp holder to synchronously move in the printing direction.

When the substrate is printed, the motion precision of the substrate in the printing direction and the height of the substrate can have adverse effects on the printing precision. In the related art, the clamp is only connected with the edge of the substrate and carries the substrate to move, and when the clamp moves, slight relative movement is easy to occur between the clamp and the substrate, so that the position of the substrate is changed, and adverse effects are generated on printing precision; in addition, the substrate is supported by the air floating platform and moves above the air floating platform, the uniformity of air outlet at all parts of the air floating platform is difficult to ensure, the substrate is difficult to maintain at the same height during movement, and the substrate is easy to wave, so that the printing precision of the substrate is easy to be adversely affected.

Disclosure of Invention

The embodiment of the application provides a correction conveying device of a display panel and an inkjet printing system, which are used for solving the technical problems that in the prior art, when a substrate is conveyed in a printing direction, deflection is easy to occur, the height of the substrate is easy to fluctuate, and the printing precision is adversely affected.

In a first aspect, a correction conveying device for a display panel is provided, including:

the bearing table is used for adsorbing and fixing a substrate or supporting the substrate in an air-floating manner;

the bearing table is arranged at the driving end of the linear driving module so as to drive the bearing table to move in the printing direction through the linear driving module;

the clamp holder assembly comprises a fixed end and an adsorption end, the adsorption end is rotationally connected with the fixed end, the rotation axis of the adsorption end is vertically arranged, and the adsorption end is suitable for adsorbing the edge of the substrate;

the lifting assembly comprises a lifting plate and a lifting driving module, the clamp holder assembly is arranged on the lifting plate, the lifting driving module is arranged on the driving end of the linear driving module, and the lifting driving module is in driving connection with the lifting plate so as to drive the lifting plate and the clamp holder assembly to lift; wherein,

After the substrate is placed on the bearing table, the bearing table is supported by air floatation, the clamp holder assembly ascends to adsorb the edge of the substrate by using the adsorption end, the adsorption end drives the substrate to rotate so as to rectify the substrate, then the clamp holder assembly descends and releases the connection with the substrate, and the bearing table immediately adsorbs and fixes the substrate.

In some embodiments, the gripper assembly comprises:

the fixed seat is fixed on the lifting plate;

The rotating seat is rotationally connected with the fixed seat;

The adsorption block is fixed on the upper surface of the rotating seat, a plurality of adsorption holes are formed in the top surface of the adsorption block, the adsorption holes are communicated with the negative pressure device, and the adsorption block is suitable for adsorbing and fixing the edge of the substrate;

the deviation correcting driving piece is in driving connection with the rotating seat so as to drive the rotating seat to rotate.

In some embodiments, the deviation correcting drive comprises:

the deviation rectifying linear driving piece is arranged on the fixing seat, and the driving direction of the deviation rectifying linear driving piece is the printing direction;

The deviation rectifying guide rail set comprises a deviation rectifying guide rail and a deviation rectifying slide block, the length direction of the deviation rectifying guide rail is in an acute angle with the printing direction, the deviation rectifying guide rail is fixed to the driving end of the deviation rectifying linear driving piece, the deviation rectifying slide block is rotationally connected to the rotating seat, and the deviation rectifying slide block is slidably arranged on the deviation rectifying guide rail.

In some embodiments, the connection position of the deviation rectifying slider and the rotating seat is near to the end of the rotating seat.

In some embodiments, the lifting assembly further includes a plurality of lifting rail sets, and the lifting plate is connected to the driving end of the linear driving module through a plurality of lifting rail sets, so that the lifting plate moves up and down above the linear driving module.

In some embodiments, the lift driving module includes:

the pushing block is arranged at the driving end of the linear driving module in a sliding manner and slides in a horizontal plane, and comprises a pushing inclined plane which forms an included angle with the horizontal plane;

The matching block is arranged on the pushing inclined plane in a sliding manner along the inclined direction of the pushing inclined plane, and is fixed with the lifting plate;

The lifting driving linear module is arranged at the driving end of the linear driving module and is in driving connection with the ejector block so as to drive the ejector block to slide; wherein,

The lifting driving linear module drives the pushing block to slide so as to push the matching block to rise by utilizing the pushing inclined plane.

In some embodiments, the correction conveying device of the display panel further comprises a supporting component, the supporting component comprises a plurality of ejector rods, the ejector rods are connected to the lifting plate, the top ends of the ejector rods are consistent with the adsorption surface of the adsorption end of the clamp holder component in height, and the ejector rods are arranged around the periphery of the bearing table.

In some embodiments, the correction conveying device of the display panel further includes two sets of alignment assemblies, the two sets of alignment assemblies are respectively located at two adjacent sides of the bearing table, and the alignment assemblies include:

The alignment lifting driving piece is arranged on the lifting plate;

The alignment rods are arranged at the driving ends of the alignment lifting driving pieces, and the alignment lifting driving pieces drive the alignment rods to lift; wherein,

And calibrating the position of the external feeding manipulator of the substrate through the position of the alignment rod so as to determine the feeding position of the substrate.

In some embodiments, the correction conveying device of the display panel further includes a plurality of groups of primary positioning assemblies, the plurality of groups of primary positioning assemblies are at least distributed on two adjacent sides of the bearing table, and the primary positioning assemblies include:

The positioning end of the positioning piece is suitable for being abutted against the side edge of the substrate;

The rotating piece is installed on the lifting plate and is in driving connection with the positioning piece, so that the positioning piece is driven to rotate in a vertical plane, and the positioning end of the positioning piece is lower than the upper surface of the bearing table.

The technical scheme provided by the application has the beneficial effects that:

The embodiment of the application provides a correction conveying device for a display panel, wherein a substrate is conveyed to a bearing table during printing processing, the edge of the substrate is in a suspended state, and a positive pressure device supplies air to a vent hole so that the bearing table supports the substrate in an air-floating mode. The lifting component drives the clamp holder component to lift, the adsorption end of the clamp holder component is in contact with and is adsorbed on the edge of the substrate, and then the adsorption end of the clamp holder component rotates relative to the fixed end so as to synchronously drive the substrate to rotate, and the substrate is rectified. After the correction of the substrate is completed, the clamp holder assembly descends and releases the connection with the substrate, then the positive pressure device does not supply air to the vent hole any more, and the negative pressure device sucks air at the vent hole, so that the surface of the bearing table forms negative pressure to adsorb and fix the substrate on the bearing table. And finally, the linear driving module drives the bearing table to move in the printing direction so as to realize the printing processing of the substrate.

When the substrate is rectified, the substrate is supported by the bearing table in an air-floating manner, when the substrate rotates and rectifies, the substrate and the table top of the bearing table are provided with gaps, the substrate is driven to rotate by the clamp assembly more easily, and in the process of rotating the substrate, the substrate is not easy to scratch with the bearing table and is not easy to damage. In addition, when the substrate is supported by air floatation, the substrate is supported by air, so that the flying high precision of the substrate on the bearing table is not required to be ensured to be uniform, and the cost of the air floatation support is reduced.

When the gripper assembly rectifies the substrate, the substrate is only driven to rotate by adsorbing and fixing the substrate, but not the bearing table, so that the rectification load is small, the large-size substrate is easier to rectify, in addition, the bearing table cannot influence the flatness of the bearing table due to rotation, the uniformity of the substrate height when the substrate is adsorbed by the bearing table is ensured, and the printing quality is ensured.

Further, the substrate is adsorbed and fixed on the bearing table through the negative pressure device, and then the bearing table and the substrate are driven to move in the printing direction, so that the height of the substrate is kept unchanged when the substrate moves in the printing direction, the printing height is ensured to be unchanged, and compared with the traditional method for supporting the substrate by utilizing air floatation, the substrate is better in uniformity of the height of each printing position and higher in printing precision. In addition, an air floatation platform with high precision and high uniformity is not required to be arranged, and the manufacturing cost of the printing equipment is saved. In addition, the substrate is adsorbed and fixed on the bearing table, so that the substrate is uniformly fixed, is not easy to relatively displace with the bearing table, is not easy to deflect when moving in the printing direction, and ensures the printing precision.

In a second aspect, there is provided an inkjet printing system comprising a correction conveying device for a display panel as described above.

In another embodiment of the present application, an inkjet printing system is provided, and since the inkjet printing system includes the correction conveying device of the display panel, the beneficial effects of the inkjet printing system are consistent with those of the correction conveying device of the display panel, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a correction conveying device for a display panel according to an embodiment of the present application;

fig. 2 is a schematic diagram of a portion of a correction conveying device for a display panel according to an embodiment of the present application;

FIG. 3 is a schematic view of a gripper assembly according to an embodiment of the present application;

Fig. 4 is a schematic diagram of another view angle of the correction conveying device for a display panel according to an embodiment of the present application;

FIG. 5 is a schematic view of a lifting assembly according to an embodiment of the present application;

FIG. 6 is a schematic view of a portion of another view angle of the correction conveying apparatus for a display panel according to an embodiment of the present application;

FIG. 7 is a schematic view of a portion of another view angle of the correction conveying apparatus for a display panel according to an embodiment of the present application;

fig. 8 is a schematic diagram of a preliminary positioning assembly according to an embodiment of the present application.

In the figure: 1. a carrying platform; 11. a support frame; 2. a linear driving module; 21. a conveying plate; 3. a gripper assembly; 31. a fixing seat; 32. a rotating seat; 33. an adsorption block; 34. a correction driving member; 341. a deviation rectifying linear driving piece; 342. a deviation correcting guide rail group; 3421. a deviation correcting slide rail; 3422. a deviation rectifying slide block; 4. a lifting assembly; 41. a lifting plate; 42. a lifting driving module; 421. pushing the jacking block; 421a, push-up ramp; 422. a mating block; 422a, mating ramp; 423. a lifting driving linear module; 43. a lifting guide rail group; 5. a support assembly; 6. an alignment assembly; 61. an alignment lifting driving piece; 62. an alignment rod; 7. a primary positioning assembly; 71. a positioning piece; 71a, a positioning end; 72. a rotating member.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The embodiment of the application provides a correction conveying device of a display panel and an inkjet printing system, wherein the correction conveying device of the display panel is used for correcting a substrate through a clamp assembly, the substrate is adsorbed and fixed by a bearing table, and the substrate moves along with the bearing table in a printing direction, so that the substrate is highly stable and is not easy to deflect when moving in the printing direction, and the printing processing precision is ensured. The application solves the technical problems that the substrate is easy to deflect and the height of the substrate is easy to fluctuate when the substrate is conveyed in the printing direction in the related technology, and the printing precision is adversely affected.

Referring to fig. 1 and 2, a display panel deviation correcting and conveying device comprises a bearing table 1, a linear driving module 2, a clamp holder assembly 3 and a lifting assembly 4. The bearing table 1 is used for bearing a substrate, and the bearing table 1 is arranged at the driving end of the linear driving module 2 and used for driving the bearing table 1 and the substrate to move in the printing direction. The gripper assembly 3 is arranged at the driving end of the linear driving module 2 through the lifting assembly 4, after the substrate is fed onto the bearing table 1, the edge of the substrate is in a suspended state, and the lifting assembly 4 drives the gripper assembly 3 to lift to adsorb the edge of the substrate and correct the substrate.

The top cover plate of the bearing table 1 is made of microporous ceramic, so that the distribution and the size of the ventilation holes on the upper surface of the bearing table 1 are more uniform. The plurality of vent holes on the bearing table 1 are communicated with the positive pressure device and the negative pressure device, and the positive pressure device blows air on the upper surface of the bearing table 1 through the plurality of vent holes to realize air floatation support of the substrate. The negative pressure device sucks air through a plurality of air holes on the upper surface of the carrying platform 1, so that the substrate is adsorbed and fixed on the upper surface of the carrying platform 1. In this embodiment, the positive pressure device and the negative pressure device are both external devices and are communicated with the vent hole through a pipeline. Wherein the positive pressure device comprises an air supply pump and the negative pressure device comprises a vacuum pump.

After the substrate is fed onto the bearing table 1, the positive pressure device enables the substrate to be supported on the bearing table 1 by air floatation, a gap is reserved between the substrate and the bearing table 1 at the moment, and then the gripper assembly 3 ascends to adsorb the edge of the substrate and drive the substrate to rotate so as to rectify the substrate. Because the gap is formed between the substrate and the table top of the bearing table 1, the substrate is more easily driven to rotate by the clamp holder assembly 3, and the substrate is not easily scratched and damaged by the bearing table 1 in the process of rotating the substrate. In addition, when the substrate is supported by air floatation, the substrate is supported by air, so that the flying high precision of the substrate on the bearing table 1 is not required to be ensured to be uniform, and the cost of the air floatation support is reduced.

In addition, after the substrate correction is completed, the substrate is adsorbed and fixed on the bearing table 1 by the negative pressure device, and the bearing table 1 and the substrate are driven to move in the printing direction by the linear driving module 2. When the substrate moves in the printing direction, the height of the substrate is kept unchanged, the printing height is kept unchanged, and compared with the traditional method for supporting the substrate by using air floatation, the substrate is better in height uniformity at each printing position and higher in printing precision. In addition, an air floatation platform with high precision and high uniformity is not required to be arranged, and the manufacturing cost of the printing equipment is saved. And the substrate is adsorbed and fixed on the bearing table 1, so that the substrate is uniformly fixed, is not easy to relatively displace with the bearing table 1, is not easy to deflect when moving in the printing direction, and ensures the printing precision.

Referring to fig. 1 and 2, the linear driving linear module includes a linear motor or a screw mechanism, the driving end of which is a conveying plate 21, and the carriage 1 is fixed on the conveying plate 21 through a plurality of supporting frames 11, thereby driving the carriage 1 to move in the printing direction.

Referring to fig. 1, 4 and 5, the lifting assembly 4 includes a lifting plate 41 and a lifting driving module 42, the lifting plate 41 is disposed above the driving end of the linear driving module 2 in a lifting sliding manner, and the supporting frame 11 passes through the lifting plate 41. In this embodiment, the lifting assembly 4 further includes a plurality of lifting rail sets 43, and the lifting plate 41 is connected to the driving end of the linear driving module 2 through the plurality of lifting rail sets, so that the lifting plate 41 moves up and down above the linear driving module 2.

Referring to fig. 4 and 5, specifically, the lift rail group 43 is mounted on the support frame 11, and the lift plate 41 is slidably connected to the support frame 11 through the lift rail group 43.

In this way, the sliding direction of the lifter plate 41 is limited by providing the lifter rail group 43, so that the movement accuracy of the lifter plate 41 in the vertical direction is ensured. When the gripper assembly 3 moves up and down along with the lifting plate 41, the movement precision of the gripper assembly 3 is higher, and the gripper assembly 3 can move to the adsorption substrate accurately.

Referring to fig. 4 and 5, the elevation driving module 42 includes a push block 421, a matching block 422, and an elevation driving linear module 423. The pushing block 421 is slidably disposed at the driving end of the linear driving module 2, that is, the pushing block 421 is slidably disposed on the conveying plate 21. The push block 421 slides in a horizontal plane, and in this embodiment, the push block 421 slides in a direction perpendicular to the printing direction.

Referring to fig. 4 and 5, the pushing block 421 includes a pushing inclined plane 421a, where the pushing inclined plane 421a forms an angle with the horizontal plane, and in this embodiment, the angle between the pushing inclined plane 421a and the horizontal plane is 15-45 degrees.

The matching block 422 and the lifting plate 41 are fixed by bolts, the matching block 422 is slidably arranged on the pushing inclined plane 421a along the inclined direction of the pushing inclined plane 421a by the guide rail group, and the pushing block 421 slides along with the pushing block 421, and the matching block 422 is pushed to rise by the pushing inclined plane 421a, and meanwhile the pushing block 421 slides relative to the matching block 422. When the engaging block 422 moves downward, the engaging block 422 moves downward by gravity as the push block 421 slides.

Referring to fig. 4 and 5, the elevation driving linear module 423 is installed at the driving end of the linear driving module 2, i.e., on the conveying plate 21. The lifting driving linear module 423 is in driving connection with the pushing block 421 to drive the pushing block 421 to slide. In this embodiment, the lifting driving linear module 423 includes a linear motor or a screw mechanism.

In this way, the pushing inclined surface 421a of the pushing block 421 is used to push the matching block 422 to rise, and the rising displacement of the matching block 422 is smaller than the sliding displacement of the pushing block 421, so that the lifting motion precision of the matching block 422 is further improved compared with the motion precision of the pushing block 421, and the lifting motion precision of the lifting plate 41 and the gripper assembly 3 on the lifting plate 41 are improved. The gripper assembly 3 can move to the suction substrate more accurately, and the situation that the substrate is pushed or a gap is left between the gripper assembly and the substrate is not easy to occur. The gripper assembly 3 is guaranteed to accurately rise to the adsorption substrate, and deviation correction of the substrate is achieved.

Referring to fig. 4 and 5, further, the engagement block 422 includes an engagement slope 422a, and the engagement slope 422a is engaged with the push slope 421 a. The engagement slope 422a of the engagement block 422 is slidably disposed on the pushing slope 421a of the pushing block 421. Thus, the sliding fit between the fitting block 422 and the ejector block 421 is more stable, and the sliding accuracy is higher.

Referring to fig. 2 and 3, the gripper assembly 3 includes a fixed end and a suction end, the suction end is rotatable with respect to the fixed end, and the rotation axis is vertically disposed. The fixed end is connected with the driving end of the linear driving module 2 through the lifting assembly 4, and the adsorption end is used for adsorbing and fixing the edge of the substrate. In this embodiment, the adsorption end is used to adsorb the edge of the substrate disposed along the printing direction. It can be appreciated that after the substrate is rectified, the adjacent two sides of the substrate are respectively arranged along the printing direction and perpendicular to the printing direction.

After the substrate is fed to the bearing table 1, the lifting assembly 4 drives the clamp holder assembly 3 to lift, so that the adsorption end of the clamp holder assembly 3 lifts to contact and adsorb the bottom surface of the substrate, and then the adsorption end is rotated to rectify the substrate.

The setting like this, when the holder subassembly 3 rectifies to the base plate, through adsorbing fixed base plate, only drive the base plate and rotate, and can not drive plummer 1 and take place to rotate, rectify the load little, more easily rectify the jumbo size base plate, in addition, plummer 1 can not influence its own planarization because of taking place to rotate, guarantees the high homogeneity of base plate when the base plate is adsorbed by plummer 1, guarantees the print quality.

Referring to fig. 2 and 3, in particular, the gripper assembly 3 includes a fixed seat 31, a rotating seat 32, an adsorption block 33, and a deviation correcting driving member 34. Wherein, fixing base 31 passes through the bolt fastening on lifter plate 41, rotates seat 32 rotation and connects in fixing base 31, rotates and is equipped with the arc guide rail between seat 32 and the fixing base 31 to improve the rotation stability and the rotation precision of rotating seat 32. The fixing seat 31 is a fixed end of the holder assembly 3.

Referring to fig. 2 and 3, the suction block 33 is elongated by being fixed to the upper surface of the rotation seat 32, and the length direction of the suction block 33 is set along the printing direction. The top surface of the adsorption block 33 is provided with a plurality of adsorption holes, the adsorption holes are communicated with the negative pressure device, and the adsorption block 33 is suitable for adsorbing and fixing the edge of the substrate. In the present embodiment, the plurality of adsorbing blocks 33 are provided, the plurality of adsorbing blocks 33 are arranged in the printing direction, and the plurality of adsorbing blocks 33 adsorb the substrate simultaneously to increase the adsorption fixing area to the base. The top surface of the adsorption block 33 is the adsorption end of the gripper assembly 3.

The deviation rectifying driving piece 34 is in driving connection with the rotating seat 32 to drive the rotating seat 32 to rotate in the horizontal plane, so that the adsorption block 33 synchronously rotates to carry the substrate to rotate, and deviation rectifying of the substrate is realized.

Referring to fig. 2 and 3, in particular, the rectifying driving member 34 includes a rectifying linear driving member 341 and a rectifying guide rail group 342. The deviation rectifying linear driving member 341 is mounted on the fixing base 31, and the driving direction of the deviation rectifying linear driving member 341 is the printing direction. The deviation correcting guide rail set 342 includes a deviation correcting guide rail 3421 and a deviation correcting slider 3422, the length direction of the deviation correcting guide rail 3421 is set at an acute angle to the printing direction, and in this embodiment, the length direction of the deviation correcting guide rail 3421 is 30-60 degrees to the printing direction. The rectifying slide rail 3421 is fixed on the driving end of the rectifying linear driving piece 341, the rectifying slide block 3422 is rotatably connected to the rotating seat 32, and the rectifying slide block 3422 is slidably arranged on the rectifying slide rail 3421. In this embodiment, the deviation rectifying linear driving member 341 includes a linear motor or a screw mechanism.

Along with the deviation rectifying linear driving member 341 driving the deviation rectifying slide rail 3421 to move in the printing direction, the deviation rectifying slide block 3422 slides on the deviation rectifying slide rail 3421. As the rectification slider 3422 slides, the rectification slider 3422 pushes the rotation seat 32 so that the rotation seat 32 rotates relative to the rectification slider 3422, thereby realizing the rotation of the rotation seat 32.

So set up, through rectifying the power transmission in-process of slide rail 3421 and rectifying the slider 3422, rectifying the motion displacement of slider 3422 and being less than the motion displacement of slide rail 3421, in addition, the motion displacement of rotating seat 32 is also less than the motion displacement of slider 3422. Therefore, through the motion transmission process, the rotation of the rotating base 32 by a small angle is easier to control, and the rotation precision of the rotating base 32 is higher. When the substrate is rectified, the rectification precision of the substrate is higher, and the printing precision is ensured.

Further, the length direction of the rotating base 32 is set along the printing direction, and the rotational connection of the deviation rectifying slider 3422 and the rotating base 32 is set near the end of the rotating base 32. The rotational connection position of the rotating seat 32 and the fixed seat 31 is arranged near the middle of the rotating seat 32.

By pushing the rotating seat 32 to rotate at the end of the rotating seat 32, the rotating seat 32 is easier to slightly rotate, so that the rotating precision of the rotating seat 32 is improved, and the correction precision of the substrate is improved.

Preferably, the connection position of the deviation rectifying slider 3422 and the rotating seat 32 and the connection position of the fixed seat 31 and the rotating seat 32 are respectively near two ends of the rotating seat 32.

So arranged, the distance between the rotational axis position of the rotational seat 32 and the stressed position of the rotational seat 32 is large, i.e. the rotational radius of the rotational seat 32 is large. When the end of the rotating seat 32 applies force, the ratio of the linear displacement of the end of the rotating seat 32 to the rotating angle of the rotating seat 32 is larger, so that the rotating angle of the rotating seat 32 can be more precisely adjusted, and the correction accuracy of the substrate is improved.

Referring to fig. 1 and 2, the correction conveying apparatus for a display panel may optionally further include a support assembly 5. The supporting assembly 5 comprises a plurality of ejector rods which are vertically fixed on the lifting plate 41, and the plurality of ejector rods are arranged around the periphery of the bearing table 1. The top of the ejector rod is identical to the suction end of the gripper assembly 3 in height.

In this way, when feeding, the ejector rod and the gripper assembly 3 ascend along with the lifting plate 41, the top surface of the ejector rod is higher than the top surface of the bearing table 1 at this time, the substrate is conveniently conveyed to the upper part of the bearing table 1 by the external feeding manipulator, and is placed on the ejector rod, and the substrate is synchronously supported by the plurality of ejector rods and the gripper assembly 3 at this time. On the one hand, the setting of ejector pin is convenient for the material loading of base plate, and on the other hand, when the base plate rectifies, because the base plate is mostly in suspension state, because the setting of ejector pin, when the base plate rotates to rectify, the ejector pin supports the base plate, makes the base plate rotate more stably.

In addition, since the ejector pins do not pass through the plummer 1, the ejector pins do not affect the position arrangement of the vent holes on the plummer 1.

Further, the top end of the partial ejector rod is provided with a sucker, and the substrate is adsorbed by the sucker, so that the substrate is stably supported.

Referring to fig. 6, the display panel deviation correcting conveying device optionally further comprises two sets of alignment assemblies 6. The two sets of alignment assemblies 6 are respectively positioned on two adjacent sides of the bearing table 1. The alignment assembly 6 is used for determining the feeding position of the external feeding manipulator, and determining the feeding position of the substrate relative to the bearing table 1 each time.

Referring to fig. 6, in particular, the alignment assembly 6 includes an alignment lift drive 61 and an alignment rod 62. The alignment lift driving piece 61 is mounted on the lift plate 41, and the alignment rod 62 is vertically mounted on the driving end of the alignment lift driving piece 61. The alignment lifting driving member 61 drives the alignment rod 62 to move up and down on the lifting plate 41, and the top end of the alignment rod 62 can be lifted to be higher than the top end of the ejector rod. In this embodiment, the alignment lifting driving member 61 includes a cylinder, and the driving end of the alignment lifting driving member 61 is a lifting support plate, and the alignment rod 62 is mounted on the lifting support plate.

In addition, the distance between the alignment rod 62 and the carrying table 1 is greater than the distance between the ejector rod and the carrying table 1.

In this way, when the substrate is loaded, the alignment rod 62 is lifted to a position where its top end is higher than the top surface of the carrying table 1. Then the external feeding manipulator is used for feeding the substrate to the upper part of the bearing table 1, and the external feeding manipulator is used for carrying out position calibration through the alignment rod 62, namely, the external feeding manipulator is moved to a designated position through the positioning of the alignment rod 62, so that the substrate feeding position can be ensured to be consistent. Then, the lifting plate 41 and the lift pins are lifted to support the substrate, and when the lifting plate 41 is lifted, the alignment bar 62 is lifted together, but the alignment bar 62 is located outside the substrate, i.e. the substrate is not located on the movement path of the alignment bar 62.

Due to the arrangement of the alignment assembly 6, the loading positions of the substrates are ensured to be consistent each time, and the difficulty of correcting the subsequent substrates is reduced.

Referring to fig. 6, further, a plurality of alignment bars 62 of each alignment assembly 6 are provided, and a plurality of alignment bars 62 of the same alignment assembly 6 are provided in the printing direction or in the vertical printing direction. By providing a plurality of alignment bars 62, the feeding and positioning requirements of various external feeding manipulators are met.

Referring to fig. 7 and 8, optionally, the correction conveying device of the display panel further includes a plurality of sets of initial positioning assemblies 7. The plurality of groups of primary positioning components 7 are at least distributed on two adjacent sides of the bearing table 1. The primary positioning component 7 is used for mechanically leaning the substrate to realize the primary positioning of the substrate. The adjacent two side edges of the base plate are respectively abutted against different primary positioning components 7, so that the primary positioning of the base plate is finished.

It should be noted that a plurality of printing areas are distributed on the substrate, and after the substrate is rectified, the length direction or the width direction of the printing areas on the substrate is consistent with the printing direction. Because the processing precision of the substrate is insufficient in the flatness precision of the side edge of the substrate, and the extending direction of the side edge of the substrate and the length direction or the width direction of the printing area have small deflection angles, the substrate is positioned by adopting a mechanical side, and the substrate is only initially positioned by adopting the gripper assembly 3, so that the substrate still needs to be rotated and corrected.

After the substrate is initially positioned by the initial positioning assembly 7, the substrate is rectified by the clamp assembly 3, so that the rectification difficulty of the substrate by the clamp assembly 3 is reduced, and the accurate rectification of the substrate by the clamp assembly 3 is facilitated.

Specifically, at least two groups of primary positioning assemblies 7 are arranged on two adjacent sides of the bearing table 1, and a plurality of primary positioning assemblies 7 on the same side of the bearing table 1 are arranged along the printing direction or the vertical printing direction.

In this way, each side edge of the substrate is abutted against at least two primary positioning components 7, and the principle that two points determine a straight line is utilized to ensure that the substrate is primarily positioned.

Referring to fig. 7 and 8, in particular, the preliminary positioning assembly 7 includes a positioning member 71 and a rotating member 72. The positioning member 71 includes a positioning end 71a, and the positioning end 71a is abutted by the substrate. In this embodiment, the positioning end 71a includes a roller, and the circumferential side of the roller is used to contact the substrate.

Referring to fig. 7 and 8, the rotating member 72 is mounted on the lifting plate 41 and is in driving connection with the positioning member 71 to drive the positioning member 71 to rotate in a vertical plane, so that the positioning end 71a of the positioning member 71 is lower than the upper surface of the carrying platform 1. In this embodiment, the rotary member 72 includes a servo motor or a rotary cylinder.

When the substrate is fed onto the ejector rod, the positioning piece 71 is at the highest height, and the positioning end 71a of the positioning piece 71 is higher than the ejector rod, so that the positioning end 71a of the positioning piece 71 supports the substrate, and the preliminary positioning of the substrate is realized. Then, the rotating member 72 drives the positioning member 71 to rotate, so that the highest height of the positioning member 71 is lower than the height of the carrying table 1, and the positioning member 71 is lower than the height of the substrate at the moment, and when the gripper assembly 3 drives the substrate to rotate to correct the deviation, the positioning member 71 does not interfere the movement of the substrate.

In this embodiment, before the substrate is fed, the alignment rod 62 of the alignment assembly 6 is lifted, the external feeding manipulator sends the substrate to the upper side of the carrying table 1, and the substrate is sent to the designated position above the carrying table 1 under the positioning of the alignment rod 62. And the substrate is moved by the external feeding manipulator so as to be abutted against the positioning piece 71 of the initial positioning assembly 7, and initial positioning of the substrate is realized.

Subsequently, the lifting plate 41 is lifted, the supporting assembly 5 and the gripper assembly 3 are lifted together, the carrier rod of the supporting assembly 5 supports the substrate, and the bearing table 1 supports the substrate in an air-floating manner. The positioning rod 62 is lowered and the positioning piece 71 of the primary positioning assembly 7 is rotated to the lowest position. The gripper assembly 3 adsorbs and fixes the edge of the substrate, drives the substrate to rotate and rectifies the substrate.

After the substrate is rectified, the gripper assembly 3 descends, and the substrate is adsorbed and fixed by the bearing table 1. The bearing table 1 and the corrected substrate move together in the printing direction under the drive of the linear driving module 2 so as to support the printing processing of the substrate.

The embodiment of the application provides a correction conveying device for a display panel, wherein a substrate is conveyed to a bearing table 1 during printing processing, the edge of the substrate is in a suspended state, and a positive pressure device supplies air to a vent hole so that the bearing table 1 supports the substrate in an air-floating mode. The lifting component 4 drives the clamp holder component 3 to lift, and enables the adsorption end of the clamp holder component 3 to contact and be adsorbed on the edge of the substrate, and then the adsorption end of the clamp holder component 3 rotates relative to the fixed end so as to synchronously drive the substrate to rotate, so that deviation correction is carried out on the substrate. After the correction of the substrate is completed, the gripper assembly 3 descends and releases the connection with the substrate, then the positive pressure device does not supply air to the vent hole any more, and the negative pressure device sucks air at the vent hole, so that negative pressure is formed on the surface of the bearing table 1, and the substrate is adsorbed and fixed on the bearing table 1. And finally, the linear driving module 2 drives the bearing table 1 to move in the printing direction so as to realize the printing processing of the substrate.

When the substrate is rectified, the substrate is supported by the bearing table 1 in an air floatation manner, when the substrate rotates and rectifies, the substrate and the table top of the bearing table 1 have a gap, the substrate is more easily driven to rotate by the gripper assembly 3, and in the process of rotating the substrate, the substrate is not easily scratched by the bearing table 1 and is not easily damaged. In addition, when the substrate is supported by air floatation, the substrate is supported by air, so that the flying high precision of the substrate on the bearing table 1 is not required to be ensured to be uniform, and the cost of the air floatation support is reduced.

When the gripper assembly 3 rectifies the substrate, the substrate is only driven to rotate by adsorbing and fixing the substrate, but the plummer 1 is not driven to rotate, the rectification load is small, the large-size substrate is easier to rectify, in addition, the plummer 1 cannot influence the flatness of the plummer 1 due to rotation, the uniformity of the substrate height when the substrate is adsorbed by the plummer 1 is ensured, and the printing quality is ensured.

Further, the substrate is adsorbed and fixed on the bearing table 1 through the negative pressure device, and then the bearing table 1 and the substrate are driven to move together in the printing direction, so that the height of the substrate is kept unchanged when the substrate moves in the printing direction, the printing height is ensured to be unchanged, and compared with the traditional substrate supported by utilizing an air floatation, the substrate is better in uniformity of the height of each printing position and higher in printing precision. In addition, an air floatation platform with high precision and high uniformity is not required to be arranged, and the manufacturing cost of the printing equipment is saved. In addition, the substrate is adsorbed and fixed on the bearing table 1, so that the substrate is uniformly fixed, is not easy to relatively displace with the bearing table 1, is not easy to deflect when moving in the printing direction, and ensures the printing precision.

Another embodiment of the present application provides an inkjet printing system including the correction conveying device for a display panel as described above.

Because this inkjet printing system includes above-mentioned display panel's deviation correcting conveyor, consequently this inkjet printing system's beneficial effect is unanimous with above-mentioned display panel's deviation correcting conveyor's beneficial effect and is unnecessary here.

In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a display panel's conveyor that rectifies which characterized in that, it includes:

the bearing table is used for adsorbing and fixing a substrate or supporting the substrate in an air-floating manner;

the bearing table is arranged at the driving end of the linear driving module so as to drive the bearing table to move in the printing direction through the linear driving module;

the clamp holder assembly comprises a fixed end and an adsorption end, the adsorption end is rotationally connected with the fixed end, the rotation axis of the adsorption end is vertically arranged, and the adsorption end is suitable for adsorbing the edge of the substrate;

the lifting assembly comprises a lifting plate and a lifting driving module, the clamp holder assembly is arranged on the lifting plate, the lifting driving module is arranged on the driving end of the linear driving module, and the lifting driving module is in driving connection with the lifting plate so as to drive the lifting plate and the clamp holder assembly to lift; wherein,

After the substrate is placed on the bearing table, the bearing table is supported by air floatation, the clamp holder assembly ascends to adsorb the edge of the substrate by using the adsorption end, the adsorption end drives the substrate to rotate so as to rectify the substrate, then the clamp holder assembly descends and releases the connection with the substrate, and the bearing table immediately adsorbs and fixes the substrate.

2. The display panel correction conveying apparatus according to claim 1, wherein the gripper assembly includes:

the fixed seat is fixed on the lifting plate;

The rotating seat is rotationally connected with the fixed seat;

The adsorption block is fixed on the upper surface of the rotating seat, a plurality of adsorption holes are formed in the top surface of the adsorption block, the adsorption holes are communicated with the negative pressure device, and the adsorption block is suitable for adsorbing and fixing the edge of the substrate;

the deviation correcting driving piece is in driving connection with the rotating seat so as to drive the rotating seat to rotate.

3. The correction conveying apparatus of a display panel according to claim 2, wherein the correction driving member includes:

the deviation rectifying linear driving piece is arranged on the fixing seat, and the driving direction of the deviation rectifying linear driving piece is the printing direction;

The deviation rectifying guide rail set comprises a deviation rectifying guide rail and a deviation rectifying slide block, the length direction of the deviation rectifying guide rail is in an acute angle with the printing direction, the deviation rectifying guide rail is fixed to the driving end of the deviation rectifying linear driving piece, the deviation rectifying slide block is rotationally connected to the rotating seat, and the deviation rectifying slide block is slidably arranged on the deviation rectifying guide rail.

4. The correction conveying device for the display panel according to claim 3, wherein the connection position of the correction slider and the rotating seat is arranged near the end of the rotating seat.

5. The display panel deviation correcting and conveying device according to claim 1, wherein the lifting assembly further comprises a plurality of lifting guide rail groups, and the lifting plate is connected with the driving end of the linear driving module through a plurality of lifting guide rail groups so as to enable the lifting plate to move in a lifting manner above the linear driving module.

6. The display panel deviation correcting and conveying device according to claim 5, wherein the lifting driving module comprises:

the pushing block is arranged at the driving end of the linear driving module in a sliding manner and slides in a horizontal plane, and comprises a pushing inclined plane which forms an included angle with the horizontal plane;

The matching block is arranged on the pushing inclined plane in a sliding manner along the inclined direction of the pushing inclined plane, and is fixed with the lifting plate;

The lifting driving linear module is arranged at the driving end of the linear driving module and is in driving connection with the ejector block so as to drive the ejector block to slide; wherein,

The lifting driving linear module drives the pushing block to slide so as to push the matching block to rise by utilizing the pushing inclined plane.

7. The correction conveying device for the display panel according to claim 1, further comprising a supporting assembly, wherein the supporting assembly comprises a plurality of ejector rods, the ejector rods are connected to the lifting plate, the top ends of the ejector rods are consistent with the adsorption surface of the adsorption end of the clamp assembly in height, and the ejector rods are arranged around the periphery of the bearing table.

8. The display panel deviation correcting and conveying device according to claim 1, further comprising two sets of alignment assemblies, the two sets of alignment assemblies being respectively located at two adjacent sides of the carrying platform, the alignment assemblies comprising:

The alignment lifting driving piece is arranged on the lifting plate;

The alignment rods are arranged at the driving ends of the alignment lifting driving pieces, and the alignment lifting driving pieces drive the alignment rods to lift; wherein,

And calibrating the position of the external feeding manipulator of the substrate through the position of the alignment rod so as to determine the feeding position of the substrate.

9. The display panel deviation correcting and conveying device according to claim 1, further comprising a plurality of groups of preliminary positioning assemblies, wherein the plurality of groups of preliminary positioning assemblies are at least distributed on two adjacent sides of the bearing table, and the preliminary positioning assemblies comprise:

The positioning end of the positioning piece is suitable for being abutted against the side edge of the substrate;

The rotating piece is installed on the lifting plate and is in driving connection with the positioning piece, so that the positioning piece is driven to rotate in a vertical plane, and the positioning end of the positioning piece is lower than the upper surface of the bearing table.

10. An inkjet printing system comprising the correction conveying apparatus for a display panel as claimed in any one of claims 1 to 9.