Graphical equipment and pattern printing method thereof

Abstract

The invention belongs to the technical field of photovoltaic and semiconductor equipment, and provides graphical equipment and a graphic printing method of the graphical equipment, the graphical equipment comprises a feeding station, the feeding station comprises a feeding cache region and a cooling device, the feeding cache region is provided with a plurality of feeding substations, the cooling device is arranged in the feeding cache region, and the cooling device is suitable for cooling the feeding cache region; the pattern printing station comprises an ink jetting unit, and the ink jetting unit is suitable for jetting liquid hot melting ink drops to the substrate to prepare a mask layer; the discharging station comprises a turnover mechanism and is used for turning over the substrate subjected to ink-jet printing and then discharging the substrate; wherein the feeding station, the pattern printing station and the discharging station are sequentially arranged in the conveying direction of the main conveying line, and the main conveying line is suitable for conveying substrates to the upstream of the feeding buffer area, so that the multiple feeding substations alternately buffer the substrates, the substrates cooled by the feeding substations are fed to the pattern printing station, and the overturned substrates are discharged; and the efficiency of preparing the mask layer on the substrate is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic and semiconductor manufacturing, and in particular relates to a graphic device and a printing method of the graphic device. Background Art

[0002] At present, in the production process of solar cell electrodes, the patterned mask process includes a loading process, a printing process and an unloading process arranged on a conveying path, wherein the loading process loads the solar cell to the printing process to prepare a patterned mask layer.

[0003] In the related technology, the loading process transports the solar cell to the printing process for hot melt inkjet printing. Hot melt inkjet printing uses hot melt material as the printing material. The printing material is solid before use. When used, it is melted into liquid by heat energy in the inkjet unit, and then sprayed onto the surface of the solar cell to condense and solidify to form a patterned mask. Considering the production efficiency and the molding quality of the pattern mask, it is urgent to develop a graphic device suitable for hot melt inkjet printing. Summary of the invention

[0004] In view of this, the present invention provides a patterning device to solve the problem in the prior art that the patterning device affects the production efficiency and molding quality during the production process of the battery cell.

[0005] The present invention provides a graphic device, including a main conveyor line, and the graphic device includes: a loading station, including a loading buffer area and a cooling device, the loading buffer area is provided with a plurality of loading sub-stations, the cooling device is arranged in the loading buffer area, and the cooling device is suitable for cooling the loading buffer area; a printing station, including an inkjet unit, the inkjet unit is suitable for spraying liquid hot melt ink droplets onto the substrate to prepare a mask layer; a unloading station, including a flipping mechanism, to unload the substrate after turning over the substrate that has completed hot melt inkjet printing; wherein the loading station, the printing station and the unloading station are sequentially arranged along the conveying direction of the main conveyor line, and the main conveyor line is suitable for conveying substrates upstream of the loading buffer area, so that the plurality of loading sub-stations alternately cache the substrates, and the substrates that have completed cooling at the loading sub-stations are fed to the printing station, and the substrates that have completed turning over are unloaded.

[0006] As an optional embodiment, the loading buffer area includes: at least one loading branch line, which is arranged in parallel with the main conveyor line; and a loading bin, through which the main conveyor line and the loading branch line are arranged; wherein the loading buffer area is arranged in the loading bin, and the multiple loading sub-stations include a first loading sub-station and a second loading sub-station, the first loading sub-station is located on the main conveyor line in the loading bin, and the second loading sub-station is located on the loading branch line in the loading bin.

[0007] As an optional embodiment, the loading branch line includes: a first loading line, which is arranged at an angle to the main conveying line; a second loading line, which is arranged at an angle to the first loading line, the second loading line is provided with the second loading sub-station, and the second loading line and the main conveying line are spaced apart from each other; a unloading line, which is arranged at an angle to both the second loading line and the main conveying line, so that the substrate on the second loading line enters the main conveying line through the unloading line; wherein, the second loading line runs through the loading bin.

[0008] As an optional embodiment, the printing station also includes: a printing workbench; a motion module, which is arranged on the printing workbench, and the motion module can reciprocate in a first motion direction, a second motion direction and a third motion direction; a carrying unit, which is arranged on the motion module, and the carrying unit is suitable for carrying a substrate and can move in the first motion direction; wherein the inkjet unit is arranged on the motion module, and the first motion direction, the second motion direction and the third motion direction are arranged at an angle, and the first motion direction is the conveying direction of the substrate.

[0009] As an optional embodiment, the motion module includes: a first linear motion mechanism, suitable for linear motion in the first motion direction, and the bearing unit is provided at one end of the first linear motion mechanism; a second linear motion mechanism, suitable for linear motion in the second motion direction; a third linear motion mechanism, arranged on the second linear motion mechanism, and the third linear motion mechanism is suitable for linear motion in the third motion direction; wherein the inkjet unit is arranged on the third linear motion mechanism, and the first motion direction, the second motion direction and the third motion direction are perpendicular to each other.

[0010] As an optional embodiment, the carrying unit has a carrying surface, the substrate is placed on the carrying surface and covers the carrying surface; and / or the carrying unit has a carrying surface, the printing station also includes a positioning structure, the positioning structure includes a vacuum pumping device, a first flow channel arranged inside the carrying unit and a plurality of small holes arranged on the carrying surface, the plurality of small holes are respectively connected to the first flow channel, and the vacuum pumping device is suitable for vacuuming the first flow channel so as to be able to adsorb the substrate.

[0011] As an optional embodiment, the printing station further includes a cooling unit, and the cooling unit is suitable for cooling the substrate on the carrying unit.

[0012] As an optional implementation, the cooling unit includes a second flow channel, the second flow channel is arranged inside the carrying unit, and the second flow channel is filled with a cold medium.

[0013] As an optional embodiment, the flipping mechanism includes: a bracket; a driving mechanism, which is arranged on the bracket; a rotating member, which is connected to the driving mechanism, and the rotating member is provided with at least one slot, and the at least one slot is suitable for clamping the substrate, and the first guide wheel and the second guide wheel are respectively provided on opposite sides of the slot, and the first guide wheel and the second guide wheel can contact the substrate placed in the slot, and the first guide wheel and the second guide wheel are respectively rotatably connected to the rotating member; wherein the driving mechanism is suitable for driving the rotating member to rotate so as to flip the substrate over and place it on the main conveyor line.

[0014] As an optional embodiment, the graphic device also includes a first photoluminescence detection device, which is located on the main conveyor line and is located between downstream of the loading buffer area and upstream of the printing station; and / or a second photoluminescence detection device, which is arranged on the main conveyor line downstream of the flipping mechanism.

[0015] The present invention also provides a printing method for a graphic device, which adopts any one of the graphic devices, and the printing method for the graphic device includes: conveying substrates into multiple loading sub-stations of the graphic device for caching; cooling the substrates cached in the loading sub-stations; controlling the substrates at the loading sub-stations that have completed cooling to be loaded into a printing station; controlling the substrates to be conveyed to the printing station to complete hot melt inkjet printing; controlling the substrates that have completed hot melt inkjet printing to enter a flipping mechanism for flipping over and unloading.

[0016] Beneficial effects: The loading station of the graphic equipment utilizes the loading buffer area, the cooling device and the main conveyor line to reduce the surface temperature of the substrate entering the printing station to an ideal temperature while ensuring the loading and conveying efficiency, so that the ink droplets of hot melt inkjet printing can be quickly condensed and solidified on the surface of the substrate, which is beneficial to improving the production efficiency of the printing process and the molding quality of the film mask pattern. In addition, after the first side of the substrate is inkjet printed at the printing station, it enters the flipping mechanism to turn over, which can realize continuous inkjet printing on the second side of the substrate, improving the production efficiency of the double-sided mask pattern of the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a graphical device according to an embodiment of the present invention;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of a loading station of a graphic device according to an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of the top view of a loading station of a graphic device according to an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of a conveying unit of a graphic device according to an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of a printing station of a graphic device according to an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of the top view of the printing station of a graphic device according to an embodiment of the present invention;

[0024] Figure 7 A schematic top view of the structure of a carrier unit of a printing station of a graphic device according to an embodiment of the present invention;

[0025] Figure 8 A schematic top view of the structure of a carrier unit of a printing station of a graphic device according to another embodiment of the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of a material unloading station of a graphic device according to an embodiment of the present invention;

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the flipping mechanism of the blanking station of the graphic device according to one embodiment of the present invention;

[0028] Fig.11 One of the flow charts of the printing method of the graphic device of the embodiment of the present invention;

[0029] Fig.12 This is the second flowchart of the printing method of the graphic device according to the embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 10. Graphics equipment; 101. Main conveyor line; 102. Substrate; 103. Conveying unit; 1031. Base; 1032. Belt rack; 1033. Motor; 1034. Pulley shaft; 1035. Active pulley; 1036. Passive pulley; 1037. Transmission belt; 1038. Conveyor belt; 100. Loading station; 110. Loading buffer area; 1101. First loading station; 1102. Second loading station; 111. Loading warehouse; 112, feeding branch line; 1121, first feeding line; 1122, second feeding line; 1123, unloading line; 113, first buffer device; 114, second buffer device; 120, cooling device; 130, first photoluminescence detection device; 140, lifting and translation mechanism; 150, regularization module; 160, waste removal mechanism; 170, rotary feeding mechanism; 200, printing station; 210, printing workbench; 220, motion module; 22 1. First linear motion mechanism; 222. Second linear motion mechanism; 223. Third linear motion mechanism; 230. Carrying unit; 240. Inkjet unit; 241. Nozzle; 250. Visual positioning module; 260. Rotating mechanism; 270. Positioning structure; 280. Cooling unit; 300. Unloading station; 310. Turning mechanism; 311. Bracket; 312. Driving mechanism; 313. Rotating member; 3131. First wheel body; 3132. First card Slot; 3133, second wheel body; 3134, second card slot; 3135, first guide wheel; 3136, second guide wheel; 320, second photoluminescence detection device; 330, rotary unloading mechanism; 340, first regularization mechanism; 350, visual inspection module; 360, second regularization mechanism; 370, first defective product rejection mechanism; 380, second defective product rejection mechanism; X, first movement direction; Y, second movement direction; Z, third movement direction. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Combine the following Figures 1 to 12 , describing an embodiment of the present invention.

[0037] like Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a graphic device 10 is provided, the graphic device 10 includes a loading station 100, a printing station 200 and a unloading station 300, including a loading buffer area 110 and a cooling device 120, the loading buffer area 110 is provided with a plurality of loading sub-stations, the cooling device 120 is arranged in the loading buffer area 110, the cooling device 120 is suitable for cooling the loading buffer area 110, the printing station 200 includes an inkjet unit 240, the inkjet unit 240 is suitable for spraying liquid hot melt ink droplets onto the substrate 102 to prepare a mask layer; the unloading station 300 includes a flipping mechanism 310 to turn over the substrate 102 that has completed hot melt inkjet printing and then unload it; wherein, the loading station 100, the printing station 200 and the unloading station 300 are arranged in sequence along the conveying direction of the main conveyor line 101, and the main conveyor line 101 is suitable for conveying the substrate 102 upstream of the loading buffer area 110, so that multiple loading sub-stations alternately cache the substrate 102, and the substrate 102 that has completed cooling at the loading sub-station is fed to the printing station 200, and the substrate 102 that has completed turning over is unloaded.

[0038] In this embodiment, the patterning device 10 in this embodiment is mainly used for manufacturing mask layers in photovoltaic and semiconductor. The substrate 102 is a battery cell.

[0039] The patterning device 10 performs hot melt inkjet printing through the inkjet unit 240 at the printing station 200. Hot melt inkjet printing uses hot melt material as the printing material. The printing material is solid before use. When in use, it is melted into liquid by heat energy in the inkjet unit 240, and then sprayed onto the surface of the solar cell to condense and solidify to form a patterned mask. The printing material usually selected has a viscosity of 0.1mPa-s to 20mPa-s when the temperature is greater than 50°C, and a viscosity greater than or equal to 10000mPa-s or is solid when the temperature is less than 25°C, such as one or more of acrylic acid, rosin ester resin, C11-C22 alkyl acid, polypropylene wax, microcrystalline wax, polyethylene wax, and ethylene vinyl acetate copolymer wax.

[0040] During the hot melt inkjet printing process, the solidification rate of the printed ink droplets on the surface of the solar cell at room temperature is low, which means that the ink droplets solidify for a long time on the surface of the cell at room temperature, which will prolong the residence time of the cell in the printing process and affect the production efficiency. At the same time, the excessive spreading of the ink droplets on the surface of the cell will affect the morphology of the ink droplets and thus affect the molding quality of the film mask pattern. In addition, in order to improve the production efficiency of the double-sided pattern mask, the substrate 102 that has completed the hot melt inkjet printing at the printing station 200 needs to be unloaded immediately and turned over as soon as possible. If the pattern mask on the first side of the substrate 102 is not fully solidified when turning over, it is very likely that the mask pattern on the first side will be damaged during or after turning over.

[0041] If the cooling device 120 is directly set in the printing process, it is difficult for the temperature of the battery cell at room temperature to be quickly reduced to the ideal temperature in a very short time of printing, and the battery cell still needs to stay in the printing process, and the production efficiency is still low. In addition, when the pattern mask on the second side of the substrate 102 is made, the presence of the mask layer on the first side of the substrate 102 will hinder the heat conduction between the substrate 102 and the contact cooling device 120 in the printing process, causing the hot melt ink droplets in the printing process to have different solidification rates on the two sides of the substrate 102, thereby causing the difference in the mask pattern on the two sides of the substrate 102. If the cooling device 120 is directly set on the feeding conveyor line to reduce the surface temperature of the battery cell entering the printing station 200 to the ideal temperature in advance, it means that the feeding conveyor line and the cooling device 120 must be set particularly long, which will not only greatly increase the length and floor space of the equipment, but also increase the feeding and conveying time, which will still affect the overall production efficiency.

[0042] The present application ingeniously designs a graphic device 10 suitable for hot melt inkjet printing technology, which utilizes the cooperation of the loading buffer area 110, the cooling device 120, the main conveying line 101, the inkjet unit 240 and the flipping mechanism 310 to ensure the loading and conveying efficiency while reducing the surface temperature of the substrate 102 entering the printing station 200 to an ideal temperature, thereby greatly increasing the solidification rate of the hot melt ink droplets on the surface of the substrate 102 in the printing station 200, so that the ink droplets can be quickly condensed and solidified on the surface of the substrate 102 during hot melt inkjet printing, which is not only conducive to improving the production efficiency of the printing process and the molding quality of the film mask pattern, but also conducive to ensuring the integrity of the mask pattern on the substrate 102 when the material is turned over, and improving the production efficiency of the double-sided pattern mask of the substrate 102. In addition, it is also conducive to eliminating the difference in the double-sided mask pattern lines caused by the presence of the mask when the double-sided mask of the substrate 102 is printed.

[0043] Specifically, the cooling device 120 can reduce the surface temperature of the substrate 102 cached in the loading buffer area 110, so that the surface temperature of the substrate 102 is reduced to an ideal temperature. When the substrate 102 buffered in one loading sub-station is being cooled down, the substrate 102 in another loading sub-station has already been cooled down. The substrate 102 in the loading sub-station that has been cooled down can be loaded into the printing station 200. After loading is completed, the loading sub-station that was previously cooling down has completed cooling down and can start loading. Therefore, multiple loading sub-stations can load alternately, so that the substrates 102 that have been cooled down can be continuously fed into the printing station 200 by the main conveyor line 101, and the inkjet unit 240 is used to perform hot melt inkjet printing on the substrate 102 entering the printing station 200 to form a mask pattern on the first side of the substrate 102. The substrate 102 that has completed inkjet printing enters the flipping mechanism 310 to be turned over and unloaded, and the above process can be repeated again via the main conveyor line 101 to form a mask pattern on the second side of the substrate 102, thereby completing the production of a double-sided mask.

[0044] like Figure 4 As shown, the main conveying line 101 includes a plurality of conveying units 103 , and the plurality of conveying units 103 are arranged in sequence in the conveying direction of the main conveying line 101 .

[0045] The above-mentioned main conveyor line 101 is a single conveyor line. The main conveyor line 101 includes a plurality of conveyor units 103, which are sequentially arranged in the conveying direction of the main conveyor line 101. Each conveyor unit 103 includes a base 1031, a belt frame 1032, a motor 1033, a driving pulley 1035, a driven pulley 1036, a pulley shaft 1034, a transmission belt 1037 and a conveyor belt 1038. The base 1031 is used to support two belt frames 1032, and the two belt frames 1032 are arranged at intervals from each other, and the two belt frames 1032 can be parallel to each other. A conveyor belt 1038 is wound around each belt frame 1032. A connecting block is connected to the end of each belt frame 1032, one end of the pulley shaft 1034 is rotatably connected to a connecting block, and the other end of the pulley shaft 1034 is rotatably connected to another connecting block. The driving pulley 1035 and the passive pulley 1036 are both arranged on the pulley shaft 1034, and the conveyor belt 1038 is arranged on the passive pulley 1036 on the corresponding side. The pulley shaft 1034 is provided with a driving pulley 1035, and the motor 1033 drives the driving pulley 1035 to rotate through the transmission belt 1037, so that the pulley shaft 1034 rotates, thereby rotating the passive pulley 1036, and the passive pulley 1036 drives the corresponding conveyor belt 1038 to rotate. When the substrate 102 is placed on the two conveyor belts 1038, the two conveyor belts 1038 rotate to transport the substrate 102.

[0046] In another embodiment, if Figure 2 and Figure 3 As shown, the loading buffer area 110 includes: a loading bin 111 and at least one loading branch line 112, the loading branch line 112 is arranged in parallel with the main conveying line 101, and the loading bin 111 is provided for the main conveying line 101 and the loading branch line 112 to pass through; wherein, the loading buffer area 110 is arranged in the loading bin 111, and the plurality of loading sub-stations include a first loading sub-station 1101 and a second loading sub-station 1102, the first loading sub-station 1101 is located on the main conveying line 101 in the loading bin 111, and the second loading sub-station 1102 is located on the loading branch line 112 in the loading bin 111. The loading buffer area 110 can continuously load the substrate 102 after cooling down in one line and one line, thereby improving the cooling efficiency of the substrate 102 while ensuring the loading efficiency. In addition, the safety of the printing station 200 when an error shutdown occurs can also be improved.

[0047] In this embodiment, the feeding branch line 112 also includes one or more conveying units 103 .

[0048] The feeding branch line 112 can be set as one, so that the feeding branch line 112 and the main conveying line 101 arranged side by side can form a feeding buffer area 110. The main conveying line 101 is provided with a first feeding sub-station 1101, and the feeding branch line 112 is provided with a second feeding sub-station 1102. The first feeding sub-station 1101 and the second feeding sub-station 1102 are arranged in the feeding bin 111, and the feeding bin 111 can be made into a relatively closed empty shell, which is conducive to the cooling device 120 to cool the feeding buffer area 110 in the feeding bin 111, saving energy.

[0049] In another embodiment, continue to combine Figure 3 As shown, the loading branch line 112 includes: a first loading line 1121, a second loading line 1122 and a unloading line 1123, the first loading line 1121 is arranged at an angle to the main conveying line 101, the second loading line 1122 is arranged at an angle to the first loading line 1121, the second loading line 1122 is provided with a second loading sub-station 1102 and a second buffer device 114, the second loading line 1122 and the main conveying line 101 are spaced apart from each other and arranged side by side, the unloading line 1123 is arranged at an angle to the second loading line 1122 and the main conveying line 101, so that the substrate 102 on the second loading line 1122 enters the main conveying line 101 through the unloading line 1123; wherein, the second loading line 1122 runs through the loading bin 111.

[0050] In this embodiment, the first loading line 1121 is arranged perpendicularly to the main conveying line 101, the second loading line 1122 is arranged parallel to the main conveying line 101, and the unloading line 1123 is arranged perpendicularly to the main conveying line 101. The first loading line 1121 and the unloading line 1123 are both located outside the loading bin 111. The loading bin 111 is provided with two openings on opposite sides of the conveying direction of the main conveying line 101 for the main conveying line 101 to pass through. Two openings are provided on opposite sides of the conveying direction of the second loading line 1122 for the second loading line 1122 to pass through.

[0051] If the substrate 102 enters the loading bin 111 through the main conveyor line 101, the substrate 102 enters the first loading sub-station 1101 for buffering and then loading. If the substrate 102 enters the loading bin 111 through the first loading line 1121 and the second loading line 1122, the substrate 102 enters the second loading sub-station 1102 for buffering and then returns to the main conveyor line 101 through the unloading line 1123 for loading.

[0052] In another embodiment, a lifting and translating mechanism 140 is provided between the feeding branch line 112 and the main conveying line 101 , and the lifting and translating mechanism 140 is suitable for translating the substrate 102 on the main conveying line 101 to the feeding branch line 112 .

[0053] The equipment starts printing. At this time, the first loading station 1101 supplies materials to the printing station 200 through the first buffer device 113. At the same time, the incoming materials from the main conveyor line 101 enter the loading branch line 112, and then enter the second loading station 1102 for buffering.

[0054] In this embodiment, the lifting and translation mechanism 140 can translate the substrates 102 on the main conveying line 101 to the feeding branch line 112 , so as to realize the diversion of the substrates 102 on the main conveying line 101 .

[0055] Both the feeding branch line 112 and the main conveying line 101 are provided with a tidying module 150 , so that the position of the substrate 102 can be adjusted before entering the feeding buffer area 110 .

[0056] In another embodiment, Figure 5 As shown, the printing station 200 also includes a printing workbench 210, a motion module 220 and a carrying unit 230. The motion module 220 is arranged on the printing workbench 210, and the motion module 220 can reciprocate in a first motion direction X, a second motion direction Y and a third motion direction Z. The carrying unit 230 is arranged on the motion module 220, and the carrying unit 230 is suitable for carrying the substrate 102 and can move in the first motion direction X, wherein the inkjet unit 240 is arranged on the motion module 220, and the first motion direction X, the second motion direction Y and the third motion direction Z are arranged at an angle, and the first motion direction X is the conveying direction of the substrate 102.

[0057] In this embodiment, the printing workbench 210 can be a marble workbench. The motion module 220 can move in three-dimensional directions of a first motion direction X, a second motion direction Y, and a third motion direction Z, so as to adjust the relative position of the inkjet unit 240 and the carrier unit 230. The printing step direction during inkjet printing is the first direction. The second direction is the horizontal direction, and the third direction is the vertical direction.

[0058] In the field of photovoltaic and semiconductor manufacturing technology, screen printing, laser etching and photosensitive resin etching have shortcomings.

[0059] Disadvantages of silk screen printing: (1) High-precision silk screen printing screens are expensive and have a short service life; (2) Different screens are only for one product, and the replacement operation is more complicated than modifying the graphics by inkjet printing; (3) The current silk screen printing process is relatively complex, and it is difficult to industrialize widths of 20μm and below; (4) The contact method has a high fragmentation rate.

[0060] Disadvantages of laser etching: (1) High energy consumption; (2) Lower operating speed than inkjet printing; (3) Direct placement of the laser on the substrate poses a risk of damaging the substrate.

[0061] Disadvantages of photosensitive resin lithography: (1) Low material utilization rate; (2) High material cost, mostly dependent on imports; (3) Complicated steps; (4) High cost of waste reagent and wastewater treatment.

[0062] The printing station 200 of the present application can realize hot-melt inkjet printing on the substrate 102, wherein the picoliter-level liquid hot-melt ink ejected by the inkjet unit 240 can be printed on a preset position on the substrate 102 as needed and condensed and solidified to form a pattern mask. The operation is simple and the printing efficiency is high. In addition, since the ink droplets can accurately fall on the preset position of the substrate 102 to directly condense and solidify, the molding quality of the mask pattern is improved, that is, the fineness of the mask pattern lines is improved. The inkjet unit 240 and the carrier unit 230 are arranged on the motion module 220. On the one hand, the relative position of the inkjet unit 240 and the substrate 102 can be adjusted, which is beneficial for correcting the position of the substrate 102 before printing, and can also adapt to a variety of mask layer sizes to meet the different needs of customers. On the other hand, moving the carrier unit 230 in the first direction during printing is more conducive to meeting the automated rhythm requirements of mass production.

[0063] In another embodiment, Figure 5 and Figure 6 As shown, the carrying unit 230 has a carrying surface, and the substrate 102 is placed on and covers the carrying surface.

[0064] In this embodiment, the substrate 102 is placed on the carrying surface. When the substrate 102 does not cover the carrying surface, when hot melt inkjet printing is performed on the first surface of the substrate 102, the ink droplets falling on the edge of the first surface of the substrate 102 have the risk of overflowing onto the carrying surface outside the substrate 102, thereby possibly contaminating the carrying surface and affecting the printing and printing efficiency of the pattern mask on the second surface of the substrate 102. Arranging the substrate 102 to cover the carrying surface can keep the carrying surface clean, which is conducive to the preparation of double-sided pattern masks of the substrate 102 and improves the double-sided printing efficiency.

[0065] In another embodiment, Figure 7 and Figure 8 As shown, the printing station 200 further includes a positioning structure 270 , which is suitable for positioning the substrate 102 on the carrier unit 230 .

[0066] Combination Figure 7As shown, the positioning structure 270 can be a vacuum adsorption structure, which is used to adsorb and position the substrate 102. The positioning structure 270 includes a vacuum pump, a first flow channel arranged inside the carrier unit 230, and a plurality of small holes arranged on the carrier surface, and the plurality of small holes are respectively connected to the first flow channel. The vacuum pump is arranged outside the carrier unit 230, and the vacuum pump draws a vacuum on the first flow channel so that the substrate 102 can be adsorbed on the carrier unit 230. The vacuum pump can be a vacuum pump, and the positioning structure 270 using vacuum adsorption can automatically adjust the adsorption force used to adsorb the substrate 102, and the degree of automation is high.

[0067] Combination Figure 8 As shown, the positioning structure 270 can also be a mechanical positioning structure, and the mechanical positioning structure is a pressing member arranged on the bearing unit 230, and the pressing member can press the substrate 102 on the bearing unit 230. Alternatively, the mechanical positioning structure can also be a card slot arranged on the bearing surface of the bearing unit 230, and the substrate 102 is clamped in the card slot, so as to realize the positioning of the substrate 102. Alternatively, the mechanical positioning structure can also be a limiting column arranged on the bearing unit 230, and a plurality of limiting columns are arranged circumferentially to form a space, and the limiting columns can limit the substrate 102 in the space. The mechanical positioning structure is adopted, because the mechanical positioning structure is fixed, the positioning of the substrate 102 on the bearing sheet can be made more accurate.

[0068] In another embodiment, Fig.12 As shown, the printing station 200 further includes a cooling unit 280 , which is suitable for cooling the substrate 102 on the carrier unit 230 .

[0069] The substrate 102 needs to be printed multiple times to complete the preparation of the single-sided mask pattern at certain sizes. Since the condensation of ink droplets will release heat and transfer it to the substrate 102, the surface temperature of the substrate 102 will be different during multiple printings, resulting in large differences in the size and morphology of the ink droplets condensed and formed in different areas of the single-sided mask, which directly affects the quality of the single-sided mask pattern. By setting the cooling unit 280, the substrate 102 on the carrier unit 230 can maintain a low temperature, which is conducive to the rapid condensation and formation of ink droplets after they fall on the substrate 102, eliminating the temperature difference in different areas of the substrate 102 during multiple single-sided printing, and improving the molding quality of the mask pattern.

[0070] In another embodiment, the cooling unit 280 includes a second flow channel, which is disposed inside the carrier unit 230 and is filled with a cold medium.

[0071] The cooling unit 280 can be integrated with the carrier unit 230, and the cold medium can be, for example, cold air or liquid cooling medium. The cold medium cools the carrier unit, so that the carrier unit 230 and the cooling unit 280 can be integrated into a vacuum adsorption cooling platform, which simplifies the structural design and saves costs.

[0072] In another embodiment, Figure 5 and Fig.12 As shown, the printing station 200 further includes a rotating mechanism 260 , which is disposed at the bottom of the carrying unit 230 and fixed to the motion module 220 . The rotating mechanism 260 is suitable for driving the carrying unit 230 to rotate.

[0073] The bottom of the carrier unit 230 is provided with a rotating mechanism 260 connected to the motion module 220, which can adjust the position of the substrate 102. The rotating mechanism 260 is a direct drive rotary motor (Direct Drive Ratary, DD motor for short).

[0074] In another embodiment, the inkjet unit 240 includes an ink supply assembly and a nozzle 241 , and the ink supply assembly is suitable for delivering liquid hot melt ink droplets to the nozzle 241 .

[0075] The ink supply assembly is provided with a heating element, which is used to heat the solid hot-melt printing material. The printing material is melted into liquid by the heat energy to form hot-melt ink droplets, which are then sprayed onto the surface of the solar cell to condense and solidify to form a patterned mask. The heating element is one or more of infrared heat radiation, a heating sheet, a heating block, and a heating rod.

[0076] In another embodiment, continue to combine Figure 5 As shown, the motion module 220 includes a first linear motion mechanism 221, a second linear motion mechanism 222 and a third motion mechanism. The first linear motion mechanism 221 is suitable for linear motion in a first motion direction X, and a bearing unit 230 is provided at one end of the first linear motion mechanism 221; the second linear motion mechanism 222 is suitable for linear motion in a second motion direction Y; the third linear motion mechanism 223 is arranged on the second linear motion mechanism 222, and the third linear motion mechanism 223 is suitable for linear motion in a third motion direction Z; wherein the inkjet unit 240 is arranged on the third linear motion mechanism 223, and the first motion direction X, the second motion direction Y and the third motion direction Z are perpendicular to each other.

[0077] The first linear motion mechanism 221 is arranged on the printing workbench 210, and a carrying unit 230 is provided at one end of the first linear motion mechanism 221. The carrying unit 230 is suitable for carrying the substrate 102 of the main conveyor line 101. The second linear motion mechanism 222 is arranged on the printing workbench 210, and the direction of the linear motion of the second linear motion mechanism 222 is perpendicular to the movement direction of the first linear motion mechanism 221. The third linear motion mechanism 223 is arranged on the second linear motion mechanism 222, and the movement direction of the third linear motion mechanism 223 is perpendicular to the movement direction of the second linear motion mechanism 222.

[0078] In another embodiment, the first linear motion mechanism 221 and the second linear motion mechanism 222 are linear motors 1033 respectively, and the third linear motion mechanism 223 is a moving screw module.

[0079] In this embodiment, a U-shaped frame is provided on the printing workbench 210, and the second linear motion mechanism 222 is connected to the U-shaped frame. The above-mentioned first linear motion mechanism 221 is a linear motor 1033, and the linear motion direction of the first linear motion mechanism 221 is parallel to the conveying direction of the main conveying line 101. The linear motion direction of the third linear motion mechanism 223 is a vertical direction, so that the position of the inkjet unit 240 can rise or fall. The third linear motion mechanism 223 is a moving screw module. The second linear motion mechanism 222 and the first linear motion mechanism 221 are linear motors 1033 respectively. The linear motion direction of the second linear motion mechanism 222 is the longitudinal direction of the horizontal plane, so that the inkjet unit 240 can be close to or away from the first linear motion mechanism 221.

[0080] In another embodiment, Figure 5 and Fig.12 As shown, the printing station 200 also includes a visual positioning module 250, which is arranged on the printing workbench 210, and the visual positioning module 250 is suitable for visually positioning the substrate 102 on the carrier unit 230, and then the motion module 220 drives the carrier unit 230 to move to the printing area of ​​the inkjet unit 240.

[0081] In the conveying direction, the visual positioning module 250, the inkjet unit 240, the third linear motion mechanism 223 and the second linear motion mechanism 222 are sequentially arranged on the printing workbench 210.

[0082] The workflow of the printing station 200 is as follows: when the carrier unit 230 moves to the visual positioning module 250, the visual positioning module 250 takes a photo of the substrate 102 placed on the carrier unit 230 and captures the visual position. If the position of the substrate 102 is not qualified, the rotating mechanism 260 is controlled to rotate the carrier unit 230 until the position of the substrate 102 on the carrier unit 230 is qualified. Alternatively, the second linear motion mechanism 222 is controlled to move linearly so that the inkjet unit 240 connected to the second linear motion mechanism 222 moves closer to or away from the carrier unit 230 to adjust the relative position between the substrate 102 on the carrier unit 230 and the inkjet unit 240 until the relative position between the substrate 102 and the inkjet unit 240 is qualified. In some cases, the position of the substrate 102 is corrected by controlling the rotation mechanism 260 to rotate and controlling the movement of the second linear motion mechanism 222, which will not be described in detail here. When the substrate 102 is positioned properly on the carrier unit 230 , the inkjet unit 240 is turned on to perform hot melt inkjet printing on the substrate 102 .

[0083] After the first side of the substrate 102 is printed with hot melt inkjet at the printing station 200, it is fed into the main conveyor line 101 through the rotating unloading mechanism 330, and then enters the flipping mechanism 310 to be flipped, so that the second side of the substrate 102 faces upward, so as to further complete the hot melt inkjet printing on the second side of the substrate 102 at the printing station 200.

[0084] The flipping mechanism 310 is arranged on the conveying path of the main conveying line 101, and the rotating wheel of the flipping mechanism 310 is rotated clockwise along the conveying direction continuously, so as to turn over the multiple substrates 102 in sequence, so that the substrates 102 are turned over during the unloading and conveying process, thereby improving the working efficiency. The flipping mechanism 310 turns over the substrate 102 during the flipping process. Compared with turning over the substrate 102 by a manipulator device, the substrate 102 does not need to stay on the unloading and conveying before and after the flipping mechanism 310, thereby improving the efficiency of the flipping. Moreover, the structure of the flipping mechanism 310 is simpler than that of a complex manipulator device.

[0085] In this embodiment, the flipped substrate 102 can be loaded again through the main conveyor line 101 and enter the printing station 200 for printing on the second side, which is beneficial to improving the efficiency of making a double-sided pattern mask layer on the substrate 102.

[0086] In another embodiment, Fig. 9 and Fig.10As shown, the flipping mechanism 310 includes a bracket 311, a driving mechanism 312 and a rotating member 313. The driving mechanism 312 is arranged on the bracket 311, and the rotating member 313 is connected to the driving mechanism 312. The rotating member 313 is provided with at least one slot, and the at least one slot is suitable for clamping the substrate 102. The first guide wheel 3135 and the second guide wheel 3136 are respectively provided on opposite sides of the slot. The first guide wheel 3135 and the second guide wheel 3136 can contact the substrate 102 placed in the slot. The first guide wheel 3135 and the second guide wheel 3136 are respectively rotatably connected to the rotating member 313. The upper driving mechanism 312 is suitable for driving the rotating member 313 to rotate so as to turn over the substrate 102 and place it on the main conveyor line 101.

[0087] The bracket 311 is a fixed part, the driving mechanism 312 can be a driving motor 3033, the rotating part 313 is provided with a rotating shaft, and the rotating shaft is connected to the driving mechanism 312, or the driving mechanism 312 is provided with a connecting hole, which is directly connected to the output shaft of the driving mechanism 312, so that the driving mechanism 312 can directly drive the rotating part 313 to rotate, thereby simplifying the driving structure of the flipping mechanism 310.

[0088] The card slot can be used to clamp the substrate 102. After the substrate 102 clamped in the card slot rotates synchronously with the rotating member 313, it can be turned over. The structure is simple and easy to implement. When the substrate 102 is inserted into the card slot, the substrate 102 contacts the first guide wheel 3135 and the second guide wheel 3136. The first guide wheel 3135 and the second guide wheel 3136 rotate and drive the substrate 102 to be continuously clamped in the card slot. Therefore, the arrangement of the first guide wheel 3135 and the second guide wheel 3136 can enable the substrate 102 to be clamped in the corresponding card slot more smoothly and reduce the breakage rate of the substrate 102.

[0089] In another embodiment, the rotating member 313 is a circular structure, and the slot extends in the radial direction of the rotating member 313 .

[0090] The rotating member 313 may be a wheel body. The wheel body is generally circular, and a slot extending in the radial direction is provided on the rotating member 313. The width of the slot matches the thickness of the substrate 102, so that the substrate 102 can be inserted into the slot. The rotating member 313 rotates 180°, and the substrate 102 rotates 180° synchronously, so that the substrate 102 can be turned over. After the rotating member 313 rotates 180°, the substrate 102 is turned over and placed on the main conveyor line 101, so that the unloading of the substrate 102 can be continued.

[0091] The rotation center of the rotating member 313 is located at the virtual center of the rotating member 313, and the slot passes through the two opposite end surfaces of the rotating member 313 and passes through the circumferential surface of the rotating member 313. The slot extends in the radial direction of the rotating member 313, so that the rotating member 313 can rotate continuously in one direction without changing direction or stopping, thereby improving the efficiency of turning over the substrate 102 and simplifying the control process of turning over.

[0092] Of course, the slot may not extend in the radial direction of the rotating member 313 , in which case the control of the rotation mode of the rotating member 313 may be more complicated.

[0093] In another embodiment, the card slots are provided in a plurality, and the plurality of card slots are evenly distributed along the circumference of the rotating member 313. The plurality of card slots are evenly arranged in the rotating member 313, and each card slot extends radially. For example, the card slots may be evenly provided in 10, 8, etc., which are not specifically limited here. When the card slots are provided in a plurality, when one of the card slots engages the substrate 102 and then rotates, another adjacent card slot rotates to the engaging position, and clamps another substrate 102, and so on. The rotating member 313 rotates 180° to turn over the substrate 102. When the card slot that initially clamps the substrate 102 rotates 180° and then unloads, as the rotating member 313 rotates, the rotating member 313 will continuously flip the corresponding substrate 102 180° and then unload, thereby improving the unloading efficiency.

[0094] The slot extends in the radial direction of the rotating member 313, so that the substrate 102 clamped in the slot can be turned over by rotating the rotating member 313 180 degrees. The rotating member 313 can continuously rotate in one direction to continuously turn over the substrate 102.

[0095] In another embodiment, continue to combine Fig.10 As shown, the rotating member 313 includes a first wheel body 3131 and a second wheel body 3133, the first wheel body 3131 is provided with a first clamping groove 3132, the second wheel body 3133 is coaxial with the first wheel body 3131 and is spaced apart from the first wheel body 3131 in the axial direction, the second wheel body 3133 is provided with a second clamping groove 3134, and the second clamping groove 3134 is arranged opposite to the first clamping groove 3132 to clamp the substrate 102 together. The first clamping groove 3132 and the second clamping groove 3134 are respectively provided with a first guide wheel 3135 and a second guide wheel 3136, and the first guide wheel 3135 and the second guide wheel 3136 are arranged in the space between the first wheel body 3131 and the second wheel body 3133. The arrangement of the first guide wheel 3135 and the second guide wheel 3136 can make the substrate 302 be clamped more smoothly in the corresponding clamping groove, and can reduce the breakage rate of the substrate 302.

[0096] In this embodiment, the slot includes a first slot 3132 and a second slot 3134. The first wheel body 3131 and the second wheel body 3133 can be respectively in a sheet-like structure, and the two wheel bodies are arranged at intervals from each other. The first wheel body 3131 and the second wheel body 3133 can be arranged in an integral manner, or the first wheel body 3131 and the second wheel body 3133 can be respectively fixed on a cylindrical structure. The first wheel body 3131 is provided with a first slot 3132, and the second wheel body 3133 is provided with a second slot 3134. The first slot 3132 and the second slot 3134 are arranged at intervals from each other, and when the substrate 102 is clamped together, it can be more stable. The first wheel body 3131 is provided with a plurality of first slots 3132, and the plurality of first slots 3132 are respectively arranged radially, and the second wheel body 3133 is provided with a plurality of second slots 3134, and the plurality of second slots 3134 are respectively arranged radially, and the plurality of first slots 3132 and the plurality of second slots 3134 are arranged one by one. The inner side of the first wheel body 3131 corresponds to the first slot 3132, and a first guide wheel 3135 and a second guide wheel 3136 are respectively disposed on opposite sides of the first slot 3132. Similarly, the inner side of the second wheel body 3133 corresponds to the second slot 3134, and a first guide wheel 3135 and a second guide wheel 3136 are respectively disposed on opposite sides of the second slot 3134.

[0097] In another embodiment, Figure 2 and Fig. 9 As shown, the patterning device 10 also includes a first photoluminescence detection device 130, which is located on the main conveyor line 101, and the first photoluminescence detection device 130 is located between the downstream of the loading buffer area 110 and the upstream of the printing station 200; and / or a second photoluminescence detection device 320, which is arranged on the main conveyor line 101 downstream of the flipping mechanism 310.

[0098] In this embodiment, a waste removal mechanism 160 and a rotary feeding mechanism 170 are sequentially provided downstream of the first photoluminescence detection device 130. The substrate 102 is transmitted to the first photoluminescence (PL) detection device 130 for a stop. The first photoluminescence detection device 130 is arranged upstream of the printing station 200 of the main conveying line 101, so that the substrate 102 entering the main conveying line 101 from the loading buffer area 110 can be transported to the PL detection device for hidden crack detection, and the hidden cracked substrate will be discharged through the waste removal mechanism 160. The waste removal mechanism 160 is a lifting and translation mechanism. The waste removal mechanism 160 removes unqualified substrates 102 to the NG material box buffer, thereby ensuring that the substrates 102 entering the printing station 200 through the rotary feeding mechanism 170 are all qualified. The rotary feeding mechanism 170 can feed the qualified substrates 102 to the printing station 200.

[0099] The first PL detection device performs optical detection on the quality of the substrate 102 to test the abnormalities of the substrate 102, including scratches and foreign matter other than hidden cracks. If OK, it will continue to be transported to the carrying unit 230. If NG, it will be transported to the waste film recovery device on the side.

[0100] The second PL detection device 320 is set on the main conveying line 101 downstream of the flipping mechanism 310, so that the flipped substrate 102 can be conveyed to the second PL detection device for hidden crack detection. The hidden cracked substrate will be discharged to the NG material box cache through the rotating suction cup loading mechanism, thereby ensuring that the substrates 102 after unloading are all qualified.

[0101] The second PL detection device performs optical detection on the quality of the substrate 102 to test the abnormalities of the substrate 102, including scratches and foreign matter other than hidden cracks. If OK, it continues to be transported and unloading is completed. If NG, it is transported to the waste film recovery device on the side.

[0102] The second PL detection device 320 is arranged on the main conveying line 101 downstream of the flipping mechanism 310, so that after the printed substrate 102 is turned over, the second side can be detected for hidden cracks. The hidden cracked sheets will be removed to the NG material box cache through the rotating suction cup, and the defective products can be removed in advance through AOI, and the genuine products can be flipped over and conveyed to the printing station 200 for printing the second side.

[0103] The unloading station 300 of the graphic device 10 is also provided with a first tidying mechanism 340, a visual inspection module 350, a second tidying mechanism 360, a first unqualified product rejection mechanism 370 and a second unqualified product rejection mechanism 380 on the main conveying line 101. Among them, the substrate 102 on the main conveying line 101 transported to the downstream by the rotary unloading mechanism 330 is tidyed by the first tidying mechanism 340, and the substrate 102 tidy by the first tidying mechanism 340 is transported to the visual inspection module 350 for photographing and inspection. The visual inspection module 350 is an OAI visual inspection mechanism. If the substrate 102 is detected to be unqualified, when the substrate 102 is transported to the first unqualified product rejection mechanism 370, the first unqualified product rejection mechanism 370 will reject the unqualified product, so that the substrate 102 entering the flipping mechanism 310 is a qualified product. The substrate 102 that has passed the inspection by the visual inspection module 350 enters the flipping mechanism 310 for flipping and then falls on the main conveying line 101. When the substrate 102 is further conveyed to the second tidying mechanism 360, the second tidying mechanism 360 tidy the flipped substrate 102. The tidy substrate 102 runs to the second photoluminescence detection device 320 for inspection, and the substrate 102 that has passed the inspection is unloaded. The substrate 102 that fails the inspection by the second photoluminescence detection device 320 is rejected by the second defective rejection mechanism 380.

[0104] like Fig.11 and Fig.12 As shown, according to an embodiment of the present invention, a printing method of a patterning device 10 is also provided. Using any of the patterning devices 10, the printing method of the patterning device 10 comprises the following steps:

[0105] Step S101: conveying a substrate 102 into a plurality of loading stations of a patterning device 10 for buffering;

[0106] Step S103: Cooling down the substrate 102 buffered in the loading station;

[0107] Step S105: Control the substrate 102 of the loading substation that has completed cooling to load the printing station 200;

[0108] Step S107: Control the substrate 102 to be transported to the printing station 200 to complete hot melt inkjet printing;

[0109] Step S109: Control the substrate 102 that has completed hot melt inkjet printing to enter the flipping mechanism 310 for flipping over and unloading.

[0110] Obviously, the above embodiments are merely examples for clear description and are not limitations of the implementation methods.

[0111] For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. The obvious changes or modifications derived from this are still within the protection scope of the invention.

Claims

1. A patterning device, comprising a main conveying line (101), characterized in that: The graphic device (10) comprises: A loading station (100) comprises a loading buffer area (110) and a cooling device (120), wherein the loading buffer area (110) is provided with a plurality of loading sub-stations, and the cooling device (120) is arranged in the loading buffer area (110), and the cooling device (120) is suitable for cooling the loading buffer area (110); A printing station (200) comprising an inkjet unit (240), wherein the inkjet unit (240) is adapted to spray liquid hot melt ink droplets onto a substrate (102); The unloading station (300) includes a turning mechanism (310) for turning over the substrate (102) after hot melt inkjet printing for unloading; Among them, the loading station (100), the printing station (200) and the unloading station (300) are arranged in sequence along the conveying direction of the main conveyor line (101), and the main conveyor line (101) is suitable for conveying the substrate (102) upstream of the loading buffer area (110), so that the multiple loading sub-stations alternately buffer the substrate (102), and the substrate (102) that has completed cooling at the loading sub-station is loaded to the printing station (200), and the substrate (102) that has completed turning over is unloaded.

2. The graphical device according to claim 1, characterized in that: The loading buffer area (110) comprises: At least one feeding branch line (112), wherein the feeding branch line (112) is arranged in parallel with the main conveying line (101); A loading bin (111) for the main conveying line (101) and the loading branch line (112) to pass through; Wherein, the loading buffer area (110) is arranged in the loading bin (111), and the multiple loading sub-stations include a first loading sub-station (1101) and a second loading sub-station (1102), the first loading sub-station (1101) is located on the main conveying line (101) in the loading bin (111), and the second loading sub-station (1102) is located on the loading branch line (112) in the loading bin (111).

3. The graphical device according to claim 2, characterized in that: The feeding branch line (112) comprises: A first loading line (1121) is arranged at an angle to the main conveying line (101); A second loading line (1122) is arranged at an angle to the first loading line (1121), the second loading sub-station (1102) is provided on the second loading line (1122), and the second loading line (1122) and the main conveying line (101) are arranged at an interval from each other; A discharge line (1123) is arranged at an angle to the second loading line (1122) and the main conveying line (101), so that the substrate (102) on the second loading line (1122) enters the main conveying line (101) through the discharge line (1123); Wherein, the second loading line (1122) runs through the loading bin (111).

4. The graphic device according to any one of claims 1 to 3, characterized in that: The printing station (200) further comprises: Printing workbench (210); A motion module (220) is disposed on the printing workbench (210), and the motion module (220) can reciprocate in a first motion direction (X), a second motion direction (Y), and a third motion direction (Z); A carrying unit (230), arranged on the motion module (220), the carrying unit (230) being suitable for carrying the substrate (102) and being movable in the first motion direction (X); The inkjet unit (240) is arranged on the motion module (220), the first motion direction (X), the second motion direction (Y) and the third motion direction (Z) are arranged at an angle, and the first motion direction (X) is the conveying direction of the substrate (102).

5. The graphic device according to claim 4, characterized in that: The motion module (220) comprises: A first linear motion mechanism (221), adapted to perform linear motion in the first motion direction (X), wherein the bearing unit (230) is provided at one end of the first linear motion mechanism (221); A second linear motion mechanism (222), adapted to perform linear motion in the second motion direction (Y); A third linear motion mechanism (223) is provided on the second linear motion mechanism (222), and the third linear motion mechanism (223) is suitable for linear motion in the third motion direction (Z); Wherein, the inkjet unit (240) is arranged on the third linear motion mechanism (223), and the first motion direction (X), the second motion direction (Y) and the third motion direction (Z) are perpendicular to each other.

6. The graphic device according to claim 4, characterized in that: The carrying unit (230) has a carrying surface, and the substrate (102) is placed on the carrying surface and covers the carrying surface; and / or the carrying unit (230) has a carrying surface, and the printing station (200) further includes a positioning structure (270), the positioning structure (270) includes a vacuum pumping device, a first flow channel arranged inside the carrying unit (230) and a plurality of small holes arranged on the carrying surface, the plurality of small holes are respectively connected to the first flow channel, and the vacuum pumping device is suitable for vacuuming the first flow channel so as to be able to adsorb the substrate (102).

7. The graphic device according to claim 4, characterized in that: The printing station (200) further comprises a cooling unit (280), wherein the cooling unit (280) is suitable for cooling the substrate (102) on the carrier unit (230).

8. The graphic device according to claim 7, characterized in that: The cooling unit (280) comprises a second flow channel arranged inside the supporting unit (230) and a cold medium filled in the second flow channel.

9. The graphic device according to any one of claims 1 to 3, characterized in that: The turning mechanism (310) comprises: Bracket (311); A driving mechanism (312) is disposed on the support (311); A rotating member (313) connected to the driving mechanism (312), the rotating member (313) being provided with at least one slot, the at least one slot being suitable for clamping the substrate (102), a first guide wheel (3135) and a second guide wheel (3136) being provided on opposite sides of the slot in a one-to-one correspondence, the first guide wheel (3135) and the second guide wheel (3136) being capable of contacting the substrate (102) placed in the slot, the first guide wheel (3135) and the second guide wheel (3136) being respectively rotatably connected to the rotating member (313); Wherein, the driving mechanism (312) is suitable for driving the rotating member (313) to rotate so as to turn over the substrate (102) and place it on the main conveying line (101).

10. The graphic device according to any one of claims 1 to 3, characterized in that: The patterning device (10) further comprises a first photoluminescence detection device (130), the first photoluminescence detection device (130) being located on the main conveying line (101), and the first photoluminescence detection device (130) being located between the downstream of the loading buffer area (110) and the upstream of the printing station (200); and / or a second photoluminescence detection device (320), the second photoluminescence detection device (320) being arranged on the main conveying line (101) downstream of the flipping mechanism (310).

11. A printing method for a graphic device, using the graphic device (10) according to any one of claims 1 to 10, characterized in that: The printing method of the graphical device comprises: Conveying the substrate (102) into a plurality of loading stations of the patterning device (10) for buffering; Cooling down the substrate (102) buffered in the loading station; Alternately controlling the substrate (102) of the material loading substation that has completed cooling to load the printing station (200); Controlling the substrate (102) to be transported to the printing station (200) to complete hot melt inkjet printing; The substrate (102) that has been printed with hot melt inkjet is controlled to enter a turning mechanism (310) to be turned over and then unloaded.

Images