CN118025809A

CN118025809A - Conveying device for spray printing of display panel and spray printing equipment

Info

Publication number: CN118025809A
Application number: CN202410376125.8A
Authority: CN
Inventors: 刘伟; 唐伟; 付宇; 潘浩; 黄标; 郑关
Original assignee: Wuhan Guochuangke Photoelectric Equipment Co ltd
Current assignee: Wuhan Guochuangke Photoelectric Equipment Co ltd
Priority date: 2024-03-29
Filing date: 2024-03-29
Publication date: 2024-05-14

Abstract

The application relates to a conveying device for spray printing of a display panel and spray printing equipment, wherein the conveying device comprises an air floating platform, a correction clamping mechanism and a traction mechanism, and the correction clamping mechanism comprises: a base; the adsorption assembly comprises an adsorption table, the adsorption table is rotationally connected to the machine base and comprises an adsorption surface; the pushing connecting rod assembly comprises a pushing block, a connecting rod and a linear pushing piece, wherein the pushing block is arranged on the machine base in a sliding manner, two ends of the connecting rod are respectively connected with the pushing block and the adsorption table in a rotating manner, and the linear pushing piece drives the pushing block to slide so as to drive the adsorption table to rotate; the joints of the adsorption table, the machine base and the connecting rod are respectively close to two ends of the adsorption table in the printing direction. According to the application, the substrate is conveyed after being rectified by the rectifying clamping mechanism, and the pushing block and the connecting rod drive the adsorption table to rotate at a small angle, so that the rectifying precision of the substrate is improved, and the printing precision is improved.

Description

Conveying device for spray printing of display panel and spray printing equipment

Technical Field

The application relates to the technical field of display panel processing, in particular to a conveying device for display panel spray printing and spray printing equipment.

Background

The OLED display device has advantages of wide color gamut, wide viewing angle, high contrast ratio, 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 large-size display devices, 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) and the like.

In the OLED spray printing preparation process, ink drops need to be precisely printed in pixel pits on a substrate; and the large-sized substrate needs to be linearly moved in a direction perpendicular to the movement of the printhead during printing. Generally, an air floating platform is used for supporting a substrate, the substrate is driven to move along a printing direction by a linear motion module, and along with the linear motion of the substrate, ink drops are printed into a pixel grid on the substrate by a spray head module.

In the related art, after the substrate is placed on the air floating platform, the substrate is required to be corrected, so that the arrangement direction of the pixel grids on the substrate is ensured to be consistent with the printing direction, and the printing precision is improved. The substrate is rectified by enabling one side face of the substrate to be attached to the locating face in a mechanical leaning mode, and the arrangement direction of the pixel grids on the substrate is assisted to be arranged along the printing direction of the substrate motion.

However, since the side surface of the substrate is not a finish surface in the manufacturing process of the substrate, the flatness of the side surface of the substrate is limited, the correction accuracy is limited by correcting the substrate in a form of attaching the side surface of the substrate to the positioning surface, and there is still a case that the arrangement direction of the pixel grid on the substrate is inconsistent with the movement direction of the substrate, so that it is difficult to ensure that the liquid drops ejected by the nozzle module fall into the pixel grid uniformly along with the movement of the substrate, the printing accuracy is poor, and the printing quality is affected.

Disclosure of Invention

The embodiment of the application provides a conveying device and jet printing equipment for jet printing of a display panel, which are used for solving the technical problems that the correction accuracy of a substrate is limited, and the printing accuracy and the printing quality are affected in the related art.

In a first aspect, a conveying device for spray printing of a display panel is provided, the conveying device comprises an air floating platform, a correction clamping mechanism and a traction mechanism, the air floating platform is used for supporting a substrate, the correction clamping mechanism is used for connecting the substrate, the traction mechanism is in driving connection with the correction clamping mechanism, so as to drive the correction clamping mechanism and the substrate to synchronously move along a printing direction, and the correction clamping mechanism comprises:

A base;

The adsorption assembly comprises an adsorption table, the adsorption table is rotationally connected to the machine base and comprises an adsorption surface, the length direction of the adsorption surface is arranged along the printing direction, and the adsorption surface is used for adsorbing one edge of the substrate;

the pushing connecting rod mechanism comprises a pushing block, a connecting rod and a linear pushing piece, the pushing block is arranged on the base in a sliding mode, two ends of the connecting rod are respectively connected with the pushing block and the adsorption table in a rotating mode, the linear pushing piece is connected with the pushing block in a driving mode to drive the pushing block to slide, and the connecting rod is used for driving the adsorption table to rotate; wherein,

The connection parts of the adsorption platform, the base and the connecting rod are respectively close to the two ends of the adsorption platform in the printing direction.

In some embodiments, the deviation rectifying and clamping mechanism further comprises a vision auxiliary system, the vision auxiliary system comprises an imaging module, the imaging module is located above the air floating platform and used for determining at least two calibration point positions on the substrate, and the imaging module is electrically connected with the deviation rectifying and clamping mechanism so as to determine the rotation angle and the rotation direction of the substrate driven by the deviation rectifying and clamping mechanism through the calibration point positions.

In some embodiments, the correction clamping mechanism further includes a visual calibration member, the visual calibration member is connected to the stand, the visual calibration member includes a calibration surface, the calibration surface is used for imaging of the imaging module, and imaging distortion of the imaging module is corrected through an imaging pattern of the imaging module and an actual pattern of the calibration surface.

In some embodiments, the deviation rectifying and clamping mechanism further comprises a preliminary positioning assembly comprising:

The two groups of blocking assemblies are arranged at intervals in the printing direction and are connected to the machine base, the blocking assemblies comprise blocking ends, the blocking ends are arranged in a lifting mode so that the blocking ends are higher than or lower than the adsorption surface, and when the blocking ends are higher than the adsorption surface, the blocking ends are used for supporting the base plate to lean against;

the ejection assembly is installed on the air floating platform, the ejection assembly and the blocking assembly are arranged at intervals in the printing direction vertically, the ejection assembly comprises an ejection end, and the ejection end is arranged vertically in the sliding direction so as to push the substrate to enable the substrate to be attached to the blocking end.

In some embodiments, the dam assembly comprises:

the blocking frame is connected to the base;

the blocking piece is rotationally arranged on the blocking frame and rotates in a vertical plane, and one end of the blocking piece is a blocking end;

The blocking driving piece is in driving connection with the blocking piece so as to drive the blocking piece to rotate.

In some embodiments, the blocking assembly further comprises an adjusting screw, the adjusting screw is in threaded connection with the blocking frame, and when the blocking member rotates to a station for blocking the substrate, the adjusting screw is abutted with the blocking member.

In some embodiments, the ejector assembly comprises:

The pushing piece is provided with one end which is the pushing end;

The ejection installation seat is arranged on the ejection piece in a sliding manner;

The two ends of the elastic piece are respectively connected with the ejection piece and the ejection mounting seat;

The ejection lifting piece is in driving connection with the ejection mounting seat so as to drive the ejection mounting seat and the ejection piece to move up and down, so that the ejection end is arranged at the height of the substrate;

The driving end of the ejection driving piece is connected with the pushing lifting piece so as to drive the ejection lifting piece and the pushing end to move in the direction perpendicular to the printing direction.

In some embodiments, the adsorption station comprises:

the mounting plate is connected with the base and the connecting rod;

The adsorption blocks are arranged along the printing direction, adsorption ends of the adsorption blocks are combined to form an adsorption surface, the adsorption blocks are fixed with the mounting plate through three thread sleeves, the three thread sleeves are in threaded connection with the adsorption blocks, and the thread sleeves are fixed with the mounting plate through screws; wherein,

The connecting lines of the three thread sleeves are arranged in an isosceles triangle, and the bottom edge of the isosceles triangle is close to the position of the adsorption table for adsorbing the substrate.

In some embodiments, the adsorption assembly further comprises:

a negative pressure system in communication with the suction surface to form a negative pressure at the suction surface to suction the substrate;

and a positive pressure system in communication with the adsorption surface to generate positive pressure at the adsorption surface to separate the substrate.

In some embodiments, the deviation rectifying and clamping mechanism further comprises a static electricity removing module, the static electricity removing module comprising:

A static eliminator;

The static electricity removing lifting piece is arranged on the base and is in driving connection with the static electricity remover so as to drive the static electricity remover to lift.

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

The embodiment of the application provides a conveying device for spray printing of a display panel, wherein after a substrate is fed onto an air floating platform, one edge of the substrate is placed at an adsorption surface of an adsorption platform so as to connect the substrate with a correction clamping mechanism, and then the correction clamping mechanism and the substrate are driven by a traction mechanism to move in a printing direction, and spray printing processing is performed on the substrate by a spray head module. After the substrate is adsorbed and fixed by the adsorption table, the adsorption table is driven to rotate by pushing the connecting rod assembly so as to adjust the arrangement direction of the pixel grids on the substrate, ensure that the arrangement direction of the pixel grids on the substrate is consistent with the printing direction, and improve the printing precision.

Further, the pushing block of the pushing connecting rod assembly drives the adsorption platform to rotate synchronously through driving the connecting rod, the number of connecting nodes between the pushing block and the adsorption platform is small, the matching precision is easier to control, and therefore the precision of driving the adsorption platform to rotate is higher, the precision of correcting the substrate is higher, and the printing precision is improved.

In addition, as the connection parts of the adsorption table, the machine base and the connecting rod are respectively arranged close to the two ends of the adsorption table in the printing direction, namely the distance between the position driving the adsorption table to rotate and the rotating shaft of the adsorption table is larger, when the pushing block moves at this moment, the adsorption table can be driven to rotate at a smaller angle, so that the rotation precision of the adsorption table is higher, the correction precision of the substrate is higher, and the printing precision is improved.

In a second aspect, a jet printing apparatus for jet printing a display panel is provided, based on a conveying device for jet printing a display panel as described above.

In another embodiment of the present application, a jet printing apparatus for jet printing a display panel is provided, and because the jet printing apparatus for jet printing a display panel is based on the conveying device for jet printing a display panel, the beneficial effects of the jet printing apparatus for jet printing a display panel are consistent with the beneficial effects of the conveying device for jet printing a display panel, which are not described herein.

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 conveying device for spray printing on a display panel according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a substrate and a rectifying and clamping mechanism according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a deviation rectifying and clamping mechanism according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a portion of a rectifying and clamping mechanism according to an embodiment of the present application;

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

FIG. 6 is a schematic view of a portion of an interior of a housing according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an adsorption stage according to an embodiment of the present application;

FIG. 8 is a diagram illustrating a connection structure between an adsorption stage and a push link assembly according to an embodiment of the present application;

FIG. 9 is a schematic diagram illustrating connection between an adsorption stage and a pushing link assembly according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a vision assistance system and a substrate provided by an embodiment of the present application;

FIG. 11 is a schematic view of a measured angle provided by an embodiment of the present application;

FIG. 12 is a schematic view of a dam assembly according to an embodiment of the present application;

FIG. 13 is a schematic view of an ejector assembly according to an embodiment of the present application;

fig. 14 is a schematic diagram of a static electricity removing module according to an embodiment of the application.

In the figure: 1. an air floatation platform; 2. a traction mechanism; 3. a deviation rectifying and clamping mechanism; 31. a base; 32. an adsorption assembly; 321. an adsorption table; 321a, an adsorption surface; 3211. a mounting plate; 3212. an adsorption block; 3213. a thread sleeve; 322. a negative pressure system; 323. a positive pressure system; 33. pushing the connecting rod assembly; 331. a pushing block; 332. a connecting rod; 333. a linear pusher; 34. a guide rail group; 35. a vision assistance system; 36. a visual calibration member; 37. a primary positioning assembly; 371. a blocking assembly; 3711. a blocking frame; 3712. a dam; 3712a, a blocking end; 3713. a blocking drive; 3714. adjusting a screw; 372. a push assembly; 3721. a push member; 3721a, ejector tips; 3722. pushing the mounting seat; 3723. an elastic member; 3724. pushing the lifting piece; 3725. pushing the driving piece; 38. a static electricity removing module; 381. a static eliminator; 382. a static electricity removing lifting member; a. a substrate; a1, marking points; a2, marking the line.

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 conveying device and spray printing equipment for spray printing of a display panel, which are used for conveying a substrate after correcting the substrate through a correction clamping mechanism, and driving an adsorption table to rotate at a small angle through a pushing block and a connecting rod so as to improve the correction accuracy of the substrate and the printing accuracy. The application solves the technical problems that the correction accuracy of the substrate is limited and the printing accuracy and the printing quality are affected in the related technology.

Referring to fig. 1, a conveying device for spray printing of a display panel comprises an air floating platform 1, a deviation rectifying and clamping mechanism 3 and a traction mechanism 2. The air supporting platform 1 is used for supporting a substrate a, the deviation rectifying clamping mechanism 3 is used for connecting the substrate a, the traction mechanism 2 is in driving connection with the deviation rectifying clamping mechanism 3, so that the deviation rectifying clamping mechanism 3 and the substrate a are driven to synchronously move along a printing direction, and the printing direction is the length direction of the air supporting platform 1 in the figure. Along with the movement of the substrate a on the air floating platform 1, the spray head module above the air floating platform 1 prints and processes the substrate a.

The traction mechanism 2 comprises a linear motor or a screw rod mechanism, and is in driving connection with the deviation rectifying and clamping mechanism 3 so as to drive the deviation rectifying and clamping mechanism 3 and the substrate a to synchronously move in the printing direction.

Referring to fig. 2-5, the deviation rectifying and clamping mechanism 3 includes a base 31, an adsorption assembly 32 and a pushing link assembly 33. The carriage 31 is fixed to the driving end of the traction mechanism 2 so as to be driven by the traction mechanism 2 to move in the printing direction. The housing 31 has a housing structure and an installation space therein.

Referring to fig. 2 to 5, the adsorption assembly 32 includes an adsorption stage 321, and the adsorption stage 321 is rotatably coupled to the inside of the housing 31. The adsorption table 321 includes an adsorption surface 321a, the adsorption surface 321a extends to the outside of the stand 31 and is upward, the adsorption surface 321a is disposed at an edge of the top surface of the adsorption table 321, and a length direction of the adsorption surface 321a is along the printing direction. Note that since the suction surface 321a is rotatable with the suction table 321, the longitudinal direction thereof may be changed, and in general, the longitudinal direction of the suction surface 321a is kept coincident with the printing direction.

The adsorption surface 321a is used for adsorbing the bottom surface at one edge of the substrate a, and after the substrate a is placed on the air floating platform 1, the position of the substrate a is moved, so that one edge of the substrate a is located on the adsorption surface 321a, and the substrate a is fixed by the adsorption surface 321 a.

Referring to fig. 2-5, the pushing link assembly 33 is installed inside the frame 31 and is in driving connection with the adsorption table 321, and the pushing link assembly 33 drives the adsorption table 321 to rotate so as to synchronously drive the substrate a to rotate, thereby adjusting the position of the substrate a and ensuring that the arrangement direction of the pixel cells on the substrate a is consistent with the printing direction.

Referring to fig. 8 and 9 in particular, the push link assembly 33 includes a push block 331, a connecting rod 332, and a linear pusher 333. The pushing block 331 is slidably disposed on the base 31, and in this embodiment, the sliding direction of the pushing block 331 is perpendicular to the printing direction. The linear pushing member 333 is installed in the frame 31, and the linear pushing member 333 is in driving connection with the pushing block 331 to drive the pushing block 331 to slide on the frame 31. Both ends of the connecting rod 332 are rotatably connected with the pushing block 331 and the adsorption table 321, respectively. Therefore, the pushing block 331 slides to drive the connecting rod 332 and the adsorption table 321 to rotate, so that the position of the substrate a is adjusted. In this embodiment, the linear pusher 333 includes a screw mechanism or a linear motor.

The pushing block 331 drives the adsorption table 321 to synchronously rotate by driving the connecting rod 332 to rotate, the number of connecting nodes between the pushing block 331 and the adsorption table 321 is small, and the matching precision is easier to control, so that the accuracy of driving the adsorption table 321 to rotate is higher, the correction precision of the substrate a is higher, and the printing precision is improved.

Referring to fig. 8 and 9, further, the suction table 321 is elongated and is disposed along the printing direction, and it should be noted that when the suction table 321 is at the initial position of non-rotation, the suction table 321 is disposed along the printing direction along the length direction. The joints of the adsorption stage 321 with the housing 31 and the connecting rod 332 are respectively provided near both ends of the adsorption stage 321 in the printing direction.

The rotary position of the adsorption table 321 is driven to be larger than the distance between the rotary shaft of the adsorption table 321, and the adsorption table 321 can be driven to rotate at a smaller angle when the pushing block 331 moves, so that the rotary precision of the adsorption table 321 is higher, the correction precision of the substrate a is higher, and the printing precision is improved.

By pushing the connecting rod assembly 33 to push the adsorption table 321 at one end of the adsorption table 321, the adsorption table 321 can be accurately rotated by a small angle, the rotation angle of the adsorption table 321 is easier to control, the adsorption table 321 can be accurately rotated by a designated angle, the position of the substrate a is accurately adjusted, the arrangement direction of the pixel grids on the substrate a is ensured to be consistent with the printing direction, and the printing precision is improved.

Referring to fig. 8, further, the suction table 321 is slidably disposed on the base 31 through at least two guide rail sets 34. The guide rail set 34 is arranged in an arc shape to fit the rotation of the adsorption table 321. By providing the guide rail group 34, the adsorption table 321 is more stable when rotating, and the rotation accuracy is higher.

Referring to fig. 4 to 7, in particular, the adsorbing stage 321 includes a mounting plate 3211 and a plurality of adsorbing blocks 3212. The plurality of adsorption blocks 3212 are assembled on the mounting plate 3211, and the mounting plate 3211 is connected to the connecting rod 332 and the base 31.

Referring to fig. 4 to 7, a plurality of adsorbing blocks 3212 are arranged in the printing direction, and adsorbing ends of the plurality of adsorbing blocks 3212 are combined to form an adsorbing surface 321a, and the adsorbing blocks 3212 are fixed to the mounting plate 3211 by three screw bosses 3213. The three screw sleeves 3213 are all in threaded connection with the adsorption block 3212, and the screw sleeves 3213 are fixed with the mounting plate 3211 through screws.

Referring to fig. 4 to 7, specifically, the adsorption block 3212 is supported by three screw sleeves 3213, the screw sleeves 3213 are fixed to the mounting plate 3211 by screws, and the relative positions of the screw sleeves 3213 and the adsorption block 3212 are adjusted by rotating the screw sleeves 3213, so that the supporting height of the screw sleeves 3213 to the adsorption block 3212 can be changed to adjust the height of the adsorption block 3212 relative to the mounting plate 3211.

By the combination of the plurality of adsorption blocks 3212, the flatness of the adsorption surface 321a is ensured. If the suction surface 321a is too long, it is difficult to ensure the flatness of the suction surface 321a due to factors such as machining accuracy and self-deformation. The accuracy of the adsorption end of each adsorption block 3212 is easier to guarantee by assembling the adsorption blocks 3212, and the adsorption surface 321a with higher flatness is also convenient to assemble by adjusting the height of each adsorption block 3212. The substrate a is ensured to be uniformly adsorbed, so that the substrate a is not easy to move relative to the adsorption table 321, the deviation rectifying precision of the substrate a is improved, and the subsequent printing precision is improved.

In addition, the connection line of the three screw sleeves 3213 is arranged in an isosceles triangle, and the bottom side of the isosceles triangle is arranged near the position of the adsorption table 321 for adsorbing the substrate a.

By means of the arrangement, the three threaded sleeves 3213 can stably support and fix the adsorption block 3212 by utilizing the principle that three points determine a plane. Through fixing two thread sleeves 3213 forming the bottom edge of the isosceles triangle, and adjusting the height of the last thread sleeve 3213, the levelness of the top surfaces of the adsorption blocks 3212 can be accurately adjusted, so that the consistency of the heights of the top surfaces of the adsorption blocks 3212 is ensured, and the flatness of the adsorption surface 321a is conveniently ensured.

Referring to fig. 5, optionally, the adsorption assembly 32 further includes a negative pressure system 322 and a positive pressure system 323. Both the negative pressure system 322 and the positive pressure system 323 are integrated inside the housing 31. Wherein, the negative pressure system 322 is communicated with the adsorption surface 321a, and in the embodiment, the negative pressure system 322 is communicated with a plurality of adsorption blocks 3212. A negative pressure is formed between the suction surface 321a and the substrate a by the negative pressure system 322 to fix the substrate a to the suction surface 321 a. When the substrate a is corrected or driven to move in the printing direction, the substrate a can be synchronously driven to move by driving the adsorption table 321 to move.

The positive pressure system 323 communicates with the adsorption surface 321a, and in this embodiment, the positive pressure system 323 communicates with each of the plurality of adsorption blocks 3212. By the positive pressure system 323, positive pressure can be formed between the substrate a and the suction surface 321a to rapidly separate the suction surface 321a from the substrate a. Therefore, after the printing of the substrate a is completed, the positive pressure system 323 enables the substrate a to be quickly separated from the adsorption surface 321a, so that the substrate a is prevented from being damaged due to the fact that the substrate a is driven to move continuously.

Referring to fig. 9 and 10, the deviation rectifying and clamping mechanism 3 further includes a vision assisting system 35, wherein the vision assisting system 35 includes an imaging module, and the imaging module is located above the air floating platform 1 and is used for determining the positions of at least two calibration points a1 on the substrate a. In this embodiment, two sets of imaging modules are provided, and two calibration points a1 are determined on the substrate a by the two sets of imaging modules. Preferably, the two calibration points a1 are pixel grids at two opposite corners of the substrate a. And the calibration line a2 is obtained by connecting the two calibration points a1, and the calibration line a2 and the printing direction form a measuring angle theta.

The imaging module is electrically connected with the correction clamping mechanism 3 so as to determine the rotation angle and the rotation direction of the substrate a driven by the correction clamping mechanism 3 through the position of the calibration point a 1.

Referring to fig. 9 and 10, if the pixel grid arrangement direction of the substrate a is consistent with the printing direction, the included angle between the calibration line a2 and the printing direction is the standard angle. By judging the relation between the measured angle theta and the standard angle, a command is correspondingly sent to the deviation rectifying and clamping mechanism 3 to drive the substrate a to rotate so as to realize precise deviation rectification of the substrate a.

By setting the positions of the pixel grids on the substrate a as the reference of the deviation correcting substrate a, the deviation correcting precision of the substrate a is higher, and the subsequent printing precision is also higher.

Referring to fig. 3-5, further, the deviation rectifying clamping mechanism 3 further includes a visual calibration member 36, and the visual calibration member 36 is connected to the base 31. The visual calibration member 36 is fixed on the inner bottom surface of the base 31, and the top surface of the visual calibration member extends out of the base 31. The visual calibration member 36 includes a calibration surface, the calibration surface is disposed on a top surface of the visual calibration member 36, the calibration surface is used for imaging by the imaging module, and imaging distortion of the imaging module is corrected by an imaging pattern of the imaging module and an actual pattern of the calibration surface. Preferably, the visual cue element 36 comprises two.

The imaging module is arranged in such a way, before the imaging module images the substrate a, the calibration piece is imaged, the channel compares the imaging pattern of the calibration surface with the imaging pattern of the calibration surface, and the imaging pattern is corrected conveniently through an image algorithm so as to correct imaging distortion of the imaging module. And when the substrate a is imaged, the pattern of the imaging position of the substrate a is ensured to be consistent with the actual pattern of the substrate a, and the connection precision of the two calibration points a1 is improved, so that the angle theta is more accurately and more measured to rectify the substrate a, and the printing precision is improved.

Referring to fig. 2 and 3, the deviation rectifying and clamping mechanism 3 further includes a preliminary positioning assembly 37, where the preliminary positioning assembly 37 is used for preliminarily positioning the substrate a, and pushing the substrate a to place the edge of the substrate a on the adsorption surface 321a.

Referring to fig. 2,4 and 5, primary positioning assembly 37 includes an ejector assembly 372 and two sets of dam assemblies 371. In this embodiment, the pushing assemblies 372 are provided with two groups of pushing assemblies 372, the two groups of pushing assemblies 372 are arranged at intervals in the printing direction, the two groups of pushing assemblies 372 synchronously push the substrate a, and the substrate a is not easy to deflect at a large angle when being moved.

Referring to fig. 4 and 5, the blocking members 371 are mounted to the frame 31 for blocking the substrate a, and the two sets of blocking members 371 are disposed at intervals in the printing direction. The pushing component 372 pushes the substrate a towards the blocking component 371, and makes the substrate a abut against the blocking component 371, so as to complete the initial positioning of the substrate a.

Referring to fig. 12, in detail, the blocking assembly 371 includes a blocking frame 3711, a blocking member 3712, and a blocking driving member 3713, wherein an end of the blocking member 3712 for supplying the substrate a is a blocking end 3712a. The blocking frame 3711 is fixed on the stand 31 by bolts, the blocking member 3712 is rotatably connected to the blocking frame 3711, and the blocking driving member 3713 is mounted on the blocking frame 3711 and is in driving connection with the blocking member 3712, so that the blocking member 3712 rotates in a vertical plane. In this embodiment, the dam drive 3713 includes a swing cylinder. As the dam 3712 rotates, the height of the dam end 3712a changes up and down. When the blocking end 3712a is higher than the adsorption surface 321a, the blocking end 3712a is used for positioning the substrate a, the edge portion of the substrate a is located on the adsorption surface 321a after the substrate a abuts against the blocking end 3712a, the adsorption table 321 adsorbs and fixes the substrate a, and then the blocking end 3712a is lowered below the adsorption surface 321a, and when the substrate a is rectified by the rotation of the adsorption table 321, the blocking end 3712a does not interfere with the rectification position of the substrate a.

Referring to fig. 12, in particular, the blocking member 3712 includes an L-shaped bar-like arrangement including a first segment and a second segment, wherein the first segment is rotatably connected to the blocking frame 3711 and is rotated by the blocking driving member 3713. The second section is configured to support the substrate a against, and the blocking end 3712a is at an end of the second section facing away from the first section, where the blocking end 3712a preferably includes rollers, and the rollers contact the substrate a, so as to reduce mutual wear of the substrate a and the blocking end 3712 a.

Referring to fig. 12, further, the blocking component 371 further includes an adjusting screw 3714, the adjusting screw 3714 is in threaded connection with the blocking frame 3711, and one end of the adjusting screw 3714 is abutted against the first segment, when the first segment of the blocking component 3712 rotates to abut against the adjusting screw 3714, the blocking end 3712a abuts against the substrate a to position the substrate a. By adjusting the position of the adjusting screw 3714 relative to the blocking frame 3711, the blocking end 3712a can be adjusted when the blocking member 3712 rotates to the first section and abuts against the adjusting screw 3714, and the accuracy of initial positioning of the substrate a can be adjusted.

The setting like this, through setting up blocking subassembly 371, the convenience is with base plate a preliminary location, and make the base plate a of preliminary location be connected with adsorption platform 321, in addition, base plate a after preliminary location, its positioning accuracy can reach millimeter level, later when utilizing rotation adsorption platform 321 and rectifying base plate a, the required rotation range of adsorption platform 321 is less, be convenient for follow-up through rotating adsorption platform 321 and meticulously rectify base plate a, has improved base plate a's rectification precision.

Referring to fig. 2 and 13, the ejector assembly 372 is mounted on a side of the air floating platform 1, and includes an ejector 3721, an ejector mounting seat 3722, an elastic member 3723, an ejector lifter 3724 and an ejector driver 3725, wherein one end of the ejector 3721 is an ejector 3721a, and the ejector 3721a pushes the substrate a to initially position the substrate a through the two blocking assemblies 371. In this embodiment, the pushing end 3721a includes a roller, and the contact between the roller and the substrate a reduces the mutual abrasion between the pushing end 3721a and the substrate a.

Referring to fig. 13, the ejector 3721 is slidably disposed on the ejector mount 3722, and the sliding direction of the ejector 3721 is perpendicular to the printing direction. Both ends of the elastic member 3723 are connected to the ejector 3721 and the ejector mount 3722, respectively, and in this embodiment, the elastic member 3723 includes a tension spring. The ejector lifting member 3724 is in driving connection with the ejector mounting base 3722, so as to drive the ejector mounting base 3722 and the ejector member 3721 to lift. The ejector lifter 3724 includes an air cylinder, an electric cylinder, or a screw mechanism. The lifting member is pushed to lift the pushing member 3721 to the height of the substrate a, so that the substrate a can be pushed. When the substrate a is fed and the substrate a is driven by the adsorption table 321 to rectify the deviation, the ejector 3721 is driven by the ejector lifter 3724 to be lower than the height of the substrate a, so as to avoid interference to the movement of the substrate a.

Referring to fig. 2 and 13, an ejector driving member 3725 is mounted on a side surface of the air floating platform 1, and a driving end of the ejector driving member 3725 is connected to the ejector lifting member 3724, so as to drive the ejector lifting member 3724, the ejector mounting seat 3722 and the ejector 3721 to move together perpendicular to the printing direction, so that the ejector 3721 is utilized to move the substrate a towards the blocking component 371. Wherein, promote the driving piece and include cylinder, electric jar or screw mechanism.

After the substrate a is placed on the air floating platform 1, the pushing lifting member 3724 lifts the pushing member 3721 to the height of the substrate a, and then the pushing driving member 3725 drives the pushing mounting seat 3722 and the pushing member 3721 to move towards the substrate a, and the pushing end 3721a of the pushing member 3721 contacts the substrate a and pushes the substrate a to be tightly abutted against the blocking component 371. As the substrate a abuts against the blocking component 371, the ejector 3721 is abutted against the substrate a, and the ejector mount 3722 still moves toward the substrate a, at this time, the ejector 3721 slides relative to the ejector mount 3722, and the elastic force of the elastic member 3723 makes the ejector 3721 always abutted against the substrate a, so that the substrate a is elastically abutted against the blocking component 371. Therefore, when the substrate a is pushed until the substrate a is close to the blocking component 371, the pushing component 3721 is not easy to excessively displace to crush the substrate a, so that the substrate a is more stably close to the blocking component 371, and the initial positioning accuracy of the substrate a is improved.

Referring to fig. 3 and 14, the rectifying clamping mechanism 3 optionally further includes a static electricity removing module 38, where the static electricity removing module 38 is configured to remove static electricity on the surface of the substrate a. When the nozzle module sprays ink onto the substrate a, the static electricity on the surface of the substrate a is removed through the static electricity removing module 38 because the ink drops are liquid with dots, and the ink drops are not easily influenced by the static electricity to deviate from a falling path, so that the printing precision is improved.

Referring to fig. 14, specifically, the static eliminating module 38 includes a static eliminator 381 and a static eliminating lifter 382, the static eliminating lifter 382 is installed inside the base 31, a notch is formed on the top surface of the base 31 for extending the static eliminating lifter 382, and the static eliminating lifter 382 is in driving connection with the static eliminator 381 to drive the static eliminator 381 to move up and down, and the static eliminator 381 is suitable for being located in the base 31 or extending out of the base 31.

The electrostatic remover 381 protrudes out of the base 31 to remove static electricity from the surface of the substrate a. When the static eliminator 381 is positioned in the base 31, damage to the static eliminator 381 is avoided, and interference between the static eliminator and other mechanisms is avoided.

In this embodiment, the electrostatic eliminator 381 includes an X-ray electrostatic eliminator, which emits X-rays to make atoms or molecules in air generate photoelectric effect to form photoelectrons with certain kinetic energy and corresponding positive ions, and these photoelectrons continue to ionize the molecules or atoms in air to generate more ions until the energy is exhausted, and then are captured by other molecules or atoms to form negative ions, so that a large amount of X-rays irradiate to fill the originally neutral air with positive and negative ions, thereby achieving the effect of eliminating static electricity.

In this embodiment, the static eliminating modules 38 include two groups, and the two groups of static eliminating modules 38 are disposed at intervals in the printing direction, so as to fully cover the surface of the substrate a.

The embodiment of the application provides a conveying device for spray printing of a display panel, wherein after a substrate a is fed onto an air floating platform 1, one edge of the substrate a is arranged at an adsorption surface 321a of an adsorption table 321 so as to connect the substrate a with a correction clamping mechanism 3, then the traction mechanism 2 drives the correction clamping mechanism 3 and the substrate a to move in a printing direction, and a spray printing process is performed on the substrate a by a spray head module. After the substrate a is adsorbed and fixed by the adsorption table 321, the adsorption table 321 is driven to rotate by pushing the link assembly 33, so as to adjust the arrangement direction of the pixel cells on the substrate a, ensure that the arrangement direction of the pixel cells on the substrate a is consistent with the printing direction, and improve the printing precision.

Further, the pushing block 331 of the pushing link assembly 33 drives the adsorption table 321 to rotate synchronously by driving the connecting rod 332, so that the number of connection nodes between the pushing block 331 and the adsorption table 321 is small, the matching precision is easier to control, and therefore, the precision of driving the adsorption table 321 to rotate is higher, the correction precision of the substrate a is higher, and the printing precision is improved.

In addition, since the connection parts of the adsorption table 321, the stand 31 and the connecting rod 332 are respectively close to two ends of the adsorption table 321 in the printing direction, that is, the rotation distance between the position driving the adsorption table 321 to rotate and the rotation axis of the adsorption table 321 is larger, when the pushing block 331 moves, the adsorption table 321 can be driven to rotate at a smaller angle, so that the rotation precision of the adsorption table 321 is higher, the correction precision of the substrate a is higher, and the printing precision is improved.

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

1. The utility model provides a conveyor for display panel spouts seal, its characterized in that includes air supporting platform, rectifies fixture and traction mechanism, the air supporting platform is used for supporting the base plate, rectify fixture be used for connecting the base plate, traction mechanism with rectify fixture drive connection, so as to drive rectify fixture with the base plate moves along the printing direction in step, rectify fixture includes:

A base;

2. The conveying device for spray printing of a display panel according to claim 1, wherein the deviation rectifying and clamping mechanism further comprises a vision auxiliary system, the vision auxiliary system comprises an imaging module, the imaging module is located above the air floating platform and used for determining at least two standard point positions on the substrate, and the imaging module is electrically connected with the deviation rectifying and clamping mechanism so as to determine the rotation angle and direction of the substrate driven by the deviation rectifying and clamping mechanism through the standard point positions.

3. The transport device for jet printing on a display panel according to claim 2, wherein the deviation correcting and clamping mechanism further comprises a visual calibration member, the visual calibration member is connected to the base, the visual calibration member comprises a calibration surface, the calibration surface is used for imaging of the imaging module, and imaging distortion of the imaging module is corrected through an imaging pattern of the imaging module and an actual pattern of the calibration surface.

4. The transport device for inkjet printing of claim 1 wherein the deviation rectifying and clamping mechanism further comprises a preliminary positioning assembly comprising:

5. The transport device for display panel spray printing of claim 4, wherein the dam assembly comprises:

the blocking frame is connected to the base;

6. The transport device for display panel spray printing of claim 5, wherein the dam assembly further comprises an adjusting screw, the adjusting screw is in threaded connection with the dam frame, and the adjusting screw abuts against the dam when the dam is rotated to a station for dam the substrate.

7. The transport device for display panel spray printing of claim 4, wherein the ejector assembly comprises:

The pushing piece is provided with one end which is the pushing end;

8. The transport device for display panel spray printing according to claim 1, wherein the adsorption stage comprises:

the mounting plate is connected with the base and the connecting rod;

9. The transport device for display panel spray printing of claim 1, wherein the adsorption assembly further comprises:

10. The transport device for display panel inkjet printing according to claim 1 wherein the deviation rectifying and clamping mechanism further includes a static removal module, the static removal module including:

A static eliminator;

11. A jet printing apparatus for jet printing a display panel, characterized in that it is based on a conveying device for jet printing a display panel according to any one of claims 1 to 10.