Glass substrate jet printing equipment and process thereof

Abstract

The invention discloses glass substrate jet printing equipment and a process thereof, and relates to the technical field of glass jet printing. The device comprises a sheet feeding machine, a directional conveying frame and storage frames located on the two sides of the directional conveying frame, a four-edge grinding machine is arranged at the right end of the directional conveying frame, an intelligent cleaning machine is arranged at the right end of the four-edge grinding machine, and a three-way conveyor is arranged on the right side of the intelligent cleaning machine; the three-way conveyors comprise two sets of two-way conveying assemblies which are symmetrically arranged, a sintering box is arranged at the left end of the other set of two-way conveying assemblies, and digital jet printing machines are arranged at the right ends of the two sets of three-way conveyors correspondingly. A preheating sintering area, a high-temperature sintering area, a first annealing area, a second annealing area, a third annealing area, a fourth annealing area, a fifth annealing area and a cooling area are sequentially arranged in the inner space of the sintering box from right to left. According to the invention, the pattern screen printing is firstly carried out on the glass substrate, and the glass substrate is cured through the sintering box, so that the glass substrate can be ensured not to burst after being cut.

Description

Technical Field

[0001] This invention belongs to the field of glass inkjet printing technology, and in particular relates to a glass substrate inkjet printing device and its process. Background Technology

[0002] Glass substrate inkjet printing equipment is a highly precise non-contact digital manufacturing equipment. It uses inkjet printing technology to deposit functional inks (such as metal nanoparticle inks, insulating materials, organic light-emitting materials, photoresists, quantum dot inks, etc.) directly onto designated locations on glass substrates in precisely controlled droplet form to form the required patterns or functional layers. Its core function is to achieve micron or even submicron level patterned deposition on glass substrates, replacing or supplementing traditional processes such as photolithography, etching, vapor deposition, and screen printing.

[0003] Therefore, currently, ordinary glass is first cut, then screen-printed with patterns, and then tempered. The tempering process solidifies the patterns and prevents them from fading. However, this method prevents the glass from being cut again, otherwise it will shatter. To address this problem, we provide a glass substrate inkjet printing equipment and process to solve the aforementioned issues. Summary of the Invention

[0004] The purpose of this invention is to provide a glass substrate inkjet printing equipment and process, which first screen prints a pattern on the glass substrate and then cures the glass substrate in a sintering box, thereby ensuring that the glass substrate will not crack after cutting.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention provides a glass substrate inkjet printing device, including a loading machine, a directional conveyor frame, and storage racks located on both sides of the directional conveyor frame. A four-sided grinder for polishing the surface of the glass substrate is located at the right end of the directional conveyor frame. An intelligent cleaning machine for cleaning the upper and lower end faces of the glass substrate is located at the right end of the four-sided grinder. A three-way conveyor is located to the right of the intelligent cleaning machine. The three-way conveyor includes two sets of symmetrically arranged bidirectional conveying components and a linkage conveyor frame located between the two sets of bidirectional conveying components. One set of bidirectional conveying components is aligned with the intelligent cleaning machine in the left-right direction. A sintering box is located at the left end of the other set of bidirectional conveying components. A loading machine is located at the left end of the sintering box. A digital inkjet printer is located at the right end of both sets of three-way conveyors. The internal space of the sintering box, from right to left, includes a preheating sintering zone, a high-temperature sintering zone, an annealing zone 1, an annealing zone 2, an annealing zone 3, an annealing zone 4, an annealing zone 5, and a cooling zone.

[0007] The present invention is further configured such that the bidirectional conveying assembly includes a roller conveyor frame and a belt conveyor frame, the roller conveyor frame and the belt conveyor frame are arranged alternately from left to right, and the conveying directions of the roller conveyor frame and the belt conveyor frame are perpendicular to each other.

[0008] The present invention is further configured such that the conveying direction of one set of roller conveyor frames is consistent with the conveying direction of the intelligent cleaning machine and the digital inkjet printer, and the conveying direction of the other set of roller conveyor frames is consistent with the conveying direction of the sintering box and the other set of digital inkjet printers.

[0009] The present invention is further configured such that the conveying direction of the belt conveyor is consistent with the conveying direction of the linkage conveyor.

[0010] The invention is further configured such that a compressor and a gas storage tank are provided on the outside of the sintering box at the locations of the preheating sintering zone, the high-temperature sintering zone, and the annealing zone, and each group of adjacent compressors and gas storage tanks are respectively connected to the interior of the corresponding preheating sintering zone, the high-temperature sintering zone, and the annealing zone.

[0011] The invention is further configured such that an intelligent robotic arm is fixed above each set of storage racks.

[0012] The present invention also provides a process for printing on glass substrates, which is carried out according to the following steps:

[0013] S1: The glass substrate is placed on the upper position of the corresponding storage rack by the hoisting equipment, and the corresponding intelligent robot is controlled to place the glass substrate one by one on the corresponding directional conveyor. The corresponding directional conveyor, four-sided grinder, intelligent cleaning machine, digital inkjet printer, three-way conveyor, sintering box and unloading machine work synchronously.

[0014] S2: The directional conveyor will transport the glass substrate to the conveyor of the four-sided grinder, and then the four-sided grinder will grind and polish the four sides of the glass substrate.

[0015] S3: Then the conveyor on the four-sided grinder transports the glass substrate to the conveyor on the intelligent cleaning machine, and the cleaning rollers on the intelligent cleaning machine clean the upper and lower surfaces of the glass substrate.

[0016] S4: Further, the intelligent cleaning machine's conveyor frame transports the glass substrates to the position of the three-way conveyor. After a group of glass substrates is on the two-way conveyor assembly, the group of glass substrates is transported to the corresponding digital inkjet printer via the roller conveyor frame.

[0017] S5: After S4, the glass substrate in the next group moves to the bidirectional conveyor assembly. The lifting device moves the belt conveyor upward, thereby moving the glass substrate away from the upper end of the roller conveyor. The belt conveyor controls the glass substrate to move to another bidirectional conveyor assembly via the linkage conveyor. The glass substrate is then transported to the digital inkjet printer via the roller conveyor. The two digital inkjet printers perform staggered inkjet printing on the glass substrate.

[0018] S6: After S5, the printing process is completed. The control data printer's conveyor will transport the glass substrate to the corresponding bidirectional conveyor assembly. The bidirectional conveyor assembly, which is similar to the intelligent cleaning machine, will transfer the glass substrate to another set of bidirectional conveyor assemblies. The other set of bidirectional conveyor assemblies will then transfer the glass substrate after printing to the corresponding sintering box.

[0019] S7: After passing through S6, the glass substrate is conveyed from the sintering box and then preheated in the preheating sintering zone. The high-temperature sintering zone gradually reaches the maximum temperature and cures the screen printing on the surface of the glass substrate.

[0020] S8: Finally, the glass substrate passes through annealing zone 1, annealing zone 2, annealing zone 3, annealing zone 4 and annealing zone 5 one by one, controlling the surface of the glass substrate to gradually decrease, and the glass substrate is transported and stopped at the position of the cooling zone. Then the cooling zone transfers the glass substrate to the stopping area of ​​the unloading machine, and the unloading machine transports and transfers the glass substrate.

[0021] The present invention has the following beneficial effects: First, the glass substrate is transferred to the interior of the corresponding digital inkjet printer for inkjet printing, and then transferred to the corresponding sintering box by a three-way conveyor. The preheating sintering zone and high-temperature sintering zone in the sintering box perform high-temperature curing treatment on the screen printing on the surface of the glass substrate, and the glass substrate passes through annealing zone one, annealing zone two, annealing zone three, annealing zone four and annealing zone five in sequence, thereby reducing the temperature of the surface of the glass substrate. This allows the pattern to be screen-printed on the glass substrate first and then cured and cut, which can effectively improve the production efficiency of glass. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a structural diagram of the sintering box in this invention.

[0025] Figure 3 This is a structural diagram of the three-way conveyor in this invention.

[0026] Figure 4 This is a structural diagram of the chip loading machine in this invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1-Film loading machine, 101-Directional conveyor frame, 102-Intelligent robotic arm, 103-Storage rack, 2-Four-sided grinder, 3-Intelligent cleaning machine, 4-Digital inkjet printer, 5-Three-way conveyor, 501-Two-way conveyor assembly, 5011-Roller conveyor frame, 5012-Belt conveyor frame, 502-Linkage conveyor frame, 6-Sintering box, 601-Preheating sintering zone, 602-High temperature sintering zone, 603-Annealing zone one, 604-Annealing zone two, 605-Annealing zone three, 606-Annealing zone four, 607-Annealing zone five, 608-Cooling zone, 609-Compressor, 6010-Air tank, 7-Film unloading machine. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The first embodiment of the present invention provides a glass substrate inkjet printing device, which first screen prints a pattern on the glass substrate and then cures the glass substrate in a sintering box 6, thereby ensuring that the glass substrate will not crack after cutting.

[0032] Specifically, the loading machine 1 includes a directional conveyor frame 101 and storage racks 103 located on both sides of the directional conveyor frame 101. A four-sided grinder 2 for grinding the surface of the glass substrate is located at the right end of the directional conveyor frame. An intelligent cleaning machine 3 for cleaning the upper and lower ends of the glass substrate is located at the right end of the four-sided grinder 2. A three-way conveyor 5 is located to the right of the intelligent cleaning machine 3. The three-way conveyor 5 includes two sets of bidirectional conveying components 501 arranged symmetrically and a linkage conveyor frame 5 located between the two sets of bidirectional conveying components 501. 02, one set of bidirectional conveying components 501 is aligned with the intelligent cleaning machine 3 in the left and right direction, the other set of bidirectional conveying components 501 is equipped with a sintering box 6 at the left end, the sintering box 6 is equipped with a sheet unloading machine 7 at the left end, and the two sets of tri-directional conveyors 5 are equipped with digital inkjet printers 4 at the right end. The internal space of the sintering box 6 is arranged from right to left as follows: preheating sintering zone 601, high temperature sintering zone 602, annealing zone one 603, annealing zone two 604, annealing zone three 605, annealing zone four 606, annealing zone five 607 and cooling zone 608.

[0033] With the above-described structure, the glass substrates are fed one by one to the four-sided grinder 2 by the loading machine 1. The glass substrates pass through the inside of the four-sided grinder 2 and the intelligent cleaning machine 3 in sequence. The four-sided grinder 2 grinds the glass substrates, while the intelligent cleaning machine 3 cleans the two ends of the glass substrates. Then, the substrates are screen-printed and cured by the three-way conveyor 5, the digital inkjet printer and the sintering box 6. This ensures that the glass substrates will not crack after cutting.

[0034] After the glass substrate moves into the preheating sintering zone 601, the ink on the glass substrate solidifies with the glass. The glass substrate takes 150 seconds to pass through the interior of the preheating sintering zone 601. Therefore, the compressor 609 delivers the gas in the gas storage tank 6010 into the interior of the preheating sintering zone 601. The upper and lower furnace bodies are equipped with compressed air convection auxiliary heating. The heating wires inside the preheating sintering zone 601 are designed in 13 groups, and the ceramic conveying rollers in the preheating sintering zone 601 are spaced 135 mm apart.

[0035] The glass substrate takes 150 seconds to pass through the interior of the high-temperature sintering zone 602. Therefore, the compressor 609 delivers the gas in the gas storage tank 6010 to the interior of the preheating sintering zone 601. The upper and lower furnace bodies are equipped with compressed air convection auxiliary heating. The heating wires inside the preheating sintering zone 601 are designed in 13 groups. The ceramic conveying rollers in the high-temperature sintering zone 602 have a spacing of 110 mm.

[0036] When the glass substrate passes through the interior of annealing zone 603, the basic temperature of the glass needs to be controlled to drop from 600℃ to 540℃, which takes 150s and has a cooling efficiency of 0.4 degrees / s. The ceramic conveying rollers are spaced 110mm apart. The upper and lower heating wires inside the sintering box 6 located in annealing zone 603 provide a constant annealing temperature field. The compressed air inside the sintering box 6 is cooled by convection, thereby ensuring that the glass cools down at a rate of 0.4 degrees / s.

[0037] When the glass substrate passes through the interior of annealing zone 2 604, the basic temperature of the glass needs to be controlled to drop from 540℃ to 520℃, which takes 150s and has a cooling efficiency of 0.13 degrees / s. The ceramic conveying rollers are spaced 120mm apart. The upper and lower heating wires inside the sintering box 6 located in annealing zone 2 604 provide a constant annealing temperature field. The compressed air inside the sintering box 6 is cooled by convection, thereby ensuring that the glass cools down at a rate of 0.13 degrees / s.

[0038] When the glass substrate passes through the interior of annealing zone 3 605, the basic temperature of the glass needs to be controlled to drop from 520℃ to 480℃, which takes 150s and has a cooling efficiency of 0.27 degrees / s. The ceramic conveying rollers are spaced 120mm apart. The upper and lower heating wires inside the sintering box 6 located in annealing zone 3 605 provide a constant annealing temperature field. The compressed air inside the sintering box 6 is cooled by convection, thereby ensuring that the glass cools down at a rate of 0.27 degrees / s.

[0039] When the glass substrate passes through the interior of annealing zone 4 606, the basic temperature of the glass needs to be controlled to drop from 480℃ to 420℃, which takes 150s and has a cooling efficiency of 0.4 degrees / s. The ceramic conveying rollers are spaced 150mm apart. The upper and lower heating wires inside the sintering box 6 located in annealing zone 4 606 provide a constant annealing temperature field. The compressed air inside the sintering box 6 is cooled by convection, thereby ensuring that the glass cools down at a rate of 0.4 degrees / s.

[0040] When the glass substrate passes through the interior of annealing zone 5 607, the basic temperature of the glass needs to be controlled to drop from 420℃ to 250℃, which takes 150s and has a cooling efficiency of 1.13 degrees / s. The ceramic conveying rollers are spaced 200mm apart. The upper and lower heating wires inside the sintering box 6 located in annealing zone 5 607 provide a constant annealing temperature field. The compressed air inside the sintering box 6 is cooled by convection, thereby ensuring that the glass cools down at a rate of 1.13 degrees / s.

[0041] After the glass substrate enters the cooling zone 608, the temperature of the glass substrate drops from 250°C to 60°C in 150 seconds, resulting in a reduction efficiency of 1.27°C / s.

[0042] Furthermore, the bidirectional conveying assembly 501 includes a roller conveyor frame 5011 and a belt conveyor frame 5012, which are arranged alternately from left to right. The conveying directions of the roller conveyor frame 5011 and the belt conveyor frame 5012 are perpendicular to each other. The belt conveyor frame 5012 is controlled by a lifting device, allowing it to move up and down. This enables the belt conveyor frame 5012 to move the glass substrate away from the upper surface of the roller conveyor frame 5011 and detach it from the conveyor frame.

[0043] It should be noted that the height of the roller conveyor 5011 is greater than the height of the belt conveyor 5012. Therefore, after the glass substrate initially moves to the position above the bidirectional conveyor assembly 501, the glass substrate will initially contact the surface of the roller conveyor 5011, so that the roller conveyor 5011 initially transfers the glass substrate into the digital inkjet printer 4.

[0044] Example 2

[0045] Please see Figure 1 and Figure 4 Based on Example 1, this example uses the compressor 609 and the air tank 6010 together to ensure stable heating or cooling of the glass substrate.

[0046] Specifically, the conveying direction of one set of roller conveyor frames 5011 is consistent with the conveying direction of the intelligent cleaning machine 3 and the digital inkjet printer 4. The conveying direction of the other set of roller conveyor frames 5011 is consistent with the conveying direction of the sintering box 6 and the other set of digital inkjet printer 4. The conveying direction of the belt conveyor frame 5012 is consistent with the conveying direction of the linkage conveyor frame 502. Compressors 609 and gas storage tanks 6010 are installed on the outside of the sintering box 6 at the positions of the preheating sintering zone 601, the high-temperature sintering zone 602 and the annealing zone. Each set of adjacent compressors 609 and gas storage tanks 6010 are connected to the interior of the corresponding preheating sintering zone 601, the high-temperature sintering zone 602 and the annealing zone, respectively. An intelligent robotic arm 102 is fixed on the top of each set of storage racks 103.

[0047] With the above-described structure, the compressed gas is delivered to the sintering chamber 6 by the compressor 609 and the gas storage tank 6010, ensuring that the glass substrate can be stably subjected to high-temperature treatment in the preheating sintering zone 601 and the high-temperature sintering zone 602, and ensuring that the glass substrate can be stably cooled in the annealing zone 1 603, annealing zone 2 604, annealing zone 3 605, annealing zone 4 606, annealing zone 5 607 and cooling zone 608. At the same time, the use of the intelligent robotic arm 102 ensures the stable transfer of the glass substrate.

[0048] Example 3

[0049] The present invention also provides a process for printing on glass substrates, which is carried out according to the following steps:

[0050] S1: The glass substrate is placed on the upper position of the corresponding storage rack 103 by the hoisting equipment, and the corresponding intelligent robot 102 is controlled to place the glass substrate one by one on the corresponding directional conveyor 101. The corresponding directional conveyor 101, four-sided grinder 2, intelligent cleaning machine 3, digital inkjet printer 4, three-way conveyor 5, sintering box 6 and unloading machine 7 work synchronously.

[0051] S2: The directional conveyor 101 will convey the glass substrate to the conveyor of the four-sided grinder 2, and then the four-sided grinder 2 will grind and polish the four-sided sidewalls of the glass substrate.

[0052] S3: Then the conveyor on the four-sided grinder 2 will transport the glass substrate to the conveyor on the intelligent cleaning machine 3, and the cleaning roller on the intelligent cleaning machine 3 will clean the upper and lower surfaces of the glass substrate.

[0053] S4: Further, the conveyor of the intelligent cleaning machine 3 transports the glass substrate to the position of the three-way conveyor 5. After a group of glass substrates is on the bidirectional conveyor assembly 501, the group of glass substrates is transported to the corresponding digital inkjet printer 4 by the roller conveyor 5011.

[0054] S5: After S4, the glass substrate in the next group moves to the bidirectional conveyor assembly 501. The lifting device moves the belt conveyor frame 5012 upward, thereby the belt conveyor frame 5012 moves the glass substrate away from the upper end of the roller conveyor frame 5011. The belt conveyor frame 5012 controls the glass substrate to move to another bidirectional conveyor assembly 501 via the linkage conveyor frame 502. Thus, the glass substrate is transported to the digital inkjet printer 4 via the roller conveyor frame 5011. The two digital inkjet printers perform staggered inkjet printing on the glass substrate.

[0055] S6: After S5, the printing process is completed. The control data printer's conveyor will transport the glass substrate to the corresponding bidirectional conveyor assembly 501. The bidirectional conveyor assembly 501, which is similar to the intelligent cleaning machine 3, will transfer the glass substrate to another set of bidirectional conveyor assemblies 501. The other set of bidirectional conveyor assemblies 501 will transfer the glass substrate after printing to the corresponding sintering box 6.

[0056] S7: After passing through the sintering box 6 via S6, the glass substrate is preheated in the preheating sintering zone 601. The high-temperature sintering zone 602 gradually reaches the maximum temperature and cures the screen printing on the surface of the glass substrate.

[0057] S8: Finally, the glass substrate passes through the positions of annealing zone 1 603, annealing zone 2 604, annealing zone 3 605, annealing zone 4 606 and annealing zone 5 607, controlling the position of the glass substrate surface to gradually decrease, and the glass substrate is transported and stopped at the position of cooling zone 608. Then, cooling zone 608 transfers the glass substrate to the stopping area of ​​unloading machine 7, and unloading machine 7 transports and transfers the glass substrate.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A glass substrate inkjet printing device, characterized in that: include, The loading machine (1) includes a directional conveyor (101) and storage racks (103) located on both sides of the directional conveyor (101); A four-sided grinder (2) for grinding the surface of the glass substrate is provided at the right end of the positioning conveyor frame. A smart cleaning machine (3) for cleaning the upper and lower ends of the glass substrate is provided at the right end of the four-sided grinder (2). A three-way conveyor (5) is provided to the right of the smart cleaning machine (3). Among them, the three-way conveyor (5) includes two sets of bidirectional conveying components (501) arranged symmetrically and a linkage conveyor frame (502) located between the two sets of bidirectional conveying components (501). One set of bidirectional conveying components (501) is aligned with the intelligent cleaning machine (3) in the left and right directions. The left end of the other set of bidirectional conveying components (501) is provided with a sintering box (6), and the left end of the sintering box (6) is provided with a sheet unloading machine (7). Digital inkjet printers (4) are installed at the right end of both sets of three-way conveyors (5). The internal space of the sintering box (6) is arranged from right to left as follows: a preheating sintering zone (601), a high-temperature sintering zone (602), an annealing zone one (603), an annealing zone two (604), an annealing zone three (605), an annealing zone four (606), an annealing zone five (607), and a cooling zone (608).

2. The glass substrate inkjet printing equipment according to claim 1, characterized in that, The bidirectional conveying assembly (501) includes a roller conveyor frame (5011) and a belt conveyor frame (5012), which are arranged alternately from left to right, and the conveying directions of the roller conveyor frame (5011) and the belt conveyor frame (5012) are perpendicular to each other.

3. The glass substrate inkjet printing equipment according to claim 2, characterized in that, The conveying direction of one set of roller conveyors (5011) is consistent with the conveying direction of the intelligent cleaning machine (3) and the digital inkjet printer (4), while the conveying direction of the other set of roller conveyors (5011) is consistent with the conveying direction of the sintering box (6) and the other digital inkjet printer (4).

4. The glass substrate inkjet printing equipment according to claim 3, characterized in that, The conveying direction of the belt conveyor (5012) is the same as that of the linkage conveyor (502).

5. The glass substrate inkjet printing equipment according to claim 1, characterized in that, The sintering box (6) is equipped with a compressor (609) and a gas storage tank (6010) at the locations of the preheating sintering zone (601), the high-temperature sintering zone (602), and the annealing zone. Each pair of adjacent compressors (609) and gas storage tanks (6010) are connected to the interior of the corresponding preheating sintering zone (601), the high-temperature sintering zone (602), and the annealing zone.

6. The glass substrate inkjet printing equipment according to claim 1, characterized in that, A smart robotic arm (102) is fixed above each of the storage racks (103).

7. A process for printing on glass substrates, characterized in that, The glass substrate inkjet printing equipment according to any one of claims 1-6 is operated according to the following steps: S1: The glass substrate is placed on the upper position of the corresponding storage rack (103) by the hoisting equipment, and the corresponding intelligent robot (102) is controlled to place the glass substrate one by one on the corresponding directional conveyor (101). The corresponding directional conveyor (101), four-sided grinder (2), intelligent cleaning machine (3), digital inkjet printer (4), three-way conveyor (5), sintering box (6) and unloading machine (7) work synchronously. S2: The directional conveyor (101) will transport the glass substrate to the conveyor of the four-sided grinder (2), and then the four-sided grinder (2) will grind the four-sided sidewalls of the glass substrate. S3: Then the conveyor on the four-sided grinder (2) will transport the glass substrate to the conveyor on the intelligent cleaning machine (3), and the upper and lower surfaces of the glass substrate will be cleaned by the cleaning roller on the intelligent cleaning machine (3). S4: Further, the conveyor of the intelligent cleaning machine (3) transports the glass substrate to the position of the three-way conveyor (5). After a group of glass substrates is on the bidirectional conveyor assembly (501), the group of glass substrates is transported to the corresponding digital inkjet printer (4) by the roller conveyor (5011). S5: After S4, the glass substrate in the next group moves to the bidirectional conveyor assembly (501), and the belt conveyor (5012) is moved upward by the lifting device. The belt conveyor (5012) moves the glass substrate away from the upper end of the roller conveyor (5011) and enters the belt conveyor (5012) to control the glass substrate to move to another bidirectional conveyor assembly (501) via the linkage conveyor (502). The glass substrate is then transported to the digital inkjet printer (4) via the roller conveyor (5011). The glass substrate is then printed in an alternating manner by the two digital inkjet printers. S6: After S5, after the printing process is completed, the conveyor in the control data printer will transport the glass substrate to the corresponding bidirectional conveyor assembly (501). The bidirectional conveyor assembly (501) that is close to the intelligent cleaning machine (3) will transfer the glass substrate to another set of bidirectional conveyor assemblies (501), and the other set of bidirectional conveyor assemblies (501) will transfer the glass substrate after printing to the corresponding sintering box (6). S7: After passing through the sintering box (6) in S6, the glass substrate is preheated in the preheating sintering zone (601). The high temperature sintering zone (602) gradually reaches the maximum temperature and the screen printing on the surface of the glass substrate is cured. S8: Finally, the glass substrate passes through the positions of annealing zone 1 (603), annealing zone 2 (604), annealing zone 3 (605), annealing zone 4 (606) and annealing zone 5 (607) one by one, controlling the position of the glass substrate surface to gradually decrease, and the glass substrate is transported and stopped at the position of cooling zone (608). Then, cooling zone (608) transfers the glass substrate to the stopping area of ​​unloading machine (7), and the unloading machine (7) transports and transfers the glass substrate.

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