CN-121777590-B - Flexible printing method and equipment for continuous processing of glass and vacuum glass

Abstract

The invention relates to the technical field of surface treatment of vacuum glass, and discloses a flexible printing method and equipment for continuously processing glass and the vacuum glass, wherein in the method, a glass substrate is conveyed to a printing workbench to ensure that a silk screen structure is positioned above the glass substrate, and a silk screen body of the silk screen structure is close to the glass substrate but is not contacted with the glass substrate; the printing head moves on the silk screen body along a set path and extrudes the sizing agent in the moving process, and each part in the non-patterned printing area of the silk screen body can be penetrated by the sizing agent. The invention can realize continuous flexible printing production of glass substrates with arbitrary shapes and sizes smaller than the size of the silk screen structure without changing the silk screen structure, and ensure the printing quality.

Inventors

• ZHAO YAN
• LI PANZHAO
• LI JINYU
• ZHOU XUDONG
• LI GUANGMAN

Assignees

• 洛阳兰迪钛金属真空玻璃有限公司

Dates

Publication Date

20260512

Application Date

20260304

Claims (16)

1. 1. A flexible printing method for continuously processing glass, comprising the steps of: S1, conveying a glass substrate to a printing workbench, ensuring that a screen structure is positioned above the glass substrate, and ensuring that a screen body in the screen structure is close to the glass substrate but is not in contact with the glass substrate, wherein the screen body is provided with non-patterning printing areas with evenly distributed mesh openings, the mesh openings of all parts in the non-patterning printing areas can be penetrated by slurry, and the non-patterning printing areas can completely cover the glass substrate; S2, the printing mechanism moves to the upper side of the glass substrate under the drive of the driving device, the printing head at the bottom of the printing mechanism moves downwards to be in contact with the silk screen body and applies downward pressure to the silk screen body, and the pressed part on the silk screen body is pressed on the glass substrate by the downward pressure of the printing head; S3, in the printing travelling process, the driving device drives the printing head to move on the silk screen body along a set path, paste is extruded from the printing head in an extrusion mode and is printed on the glass substrate through a non-patterning printing area of the silk screen body, and in the printing process, the pressed part of the silk screen body is always pressed on the glass substrate through the downward pressure of the printing head, so that flexible preparation of printing patterns on the glass substrate with any size smaller than the non-patterning printing area is realized; And S4, after the printing mechanism completes a set path above the silk screen body, the printing mechanism is far away from the glass substrate, and printing of the glass substrate is completed.
2. 2. The flexible printing method for continuously processing glass according to claim 1, wherein a distance between the non-pressed portion of the screen body and the glass substrate is controlled to be 1-10mm during the printing travel.
3. 3. The flexible printing method for continuously processing glass according to claim 1, wherein the pressing force applied by the printing head to the screen body during the printing travel is F1, and F1 is 15 n≤f1≤200n.
4. 4. The flexible printing method for continuously processing glass according to claim 3, wherein the screen body applies a pressing force of F2 to the glass substrate by the printing head, F2< F1 and 5N. Ltoreq.f2. Ltoreq.190N.
5. 5. The flexible printing method for continuously processing glass according to claim 1, wherein when a plurality of glass substrates are simultaneously provided on the printing table, after the front glass substrate is printed, the printing head is moved to above the next glass substrate, and then S2 to S4 are repeated.
6. 6. The flexible printing method for continuous glass processing according to claim 1, wherein in step S3, the print head is moved at least two times along the set path, and the print head extrudes the paste only during the first travel, and the subsequent travel is used to flatten the paste.
7. 7. The flexible printing method for continuous glass processing according to claim 1, wherein the paste is a metal paste or a glass frit paste.
8. 8. The flexible printing method for continuous glass processing according to claim 1 or 7, wherein the thickness of the paste layer printed on the glass substrate is 0.001 to 0.5mm, and the width of the paste layer is 1 to 20mm.
9. 9. A vacuum glass comprising at least two glass substrates capable of being laminated, characterized in that at least one glass substrate is printed with a paste layer by the flexible printing method for continuous glass processing according to any one of claims 1 to 8.
10. 10. A flexible printing device for continuously processing glass is used for printing sizing agent on a glass substrate and is characterized by comprising a printing workbench, a silk screen structure, a driving device and a printing mechanism, wherein the silk screen structure is positioned above the glass substrate, non-patterning printing areas with evenly distributed meshes are arranged on a silk screen body in the silk screen structure, meshes at all positions in the non-patterning printing areas can be penetrated by sizing agent, the non-patterning printing areas can completely cover the glass substrate, the printing mechanism is positioned above the silk screen structure, a printing head is arranged at the bottom of the printing mechanism and connected with the printing mechanism and drives the printing mechanism to travel along a set path, the printing head can extrude sizing agent and is driven by the driving device to contact with the silk screen body and apply downward pressure to the silk screen body, and pressed positions on the silk screen body are pressed on the glass substrate by the downward pressure of the printing head.
11. 11. The flexible printing apparatus for continuously processing glass according to claim 10, further comprising a floating hold-down mechanism disposed between the driving device and the printing mechanism, the floating hold-down mechanism comprising a fixing base, a connecting post and a spring, the connecting post vertically penetrating the fixing base, the printing mechanism being fixed to the connecting post, the fixing base being fixedly connected to the driving device, the spring being sleeved on the connecting post and being disposed between an end of the connecting post and the fixing base.
12. 12. The flexible printing apparatus for continuous glass processing according to claim 11, wherein the spring comprises an upper spring located between the top of the connecting post and the fixing base.
13. 13. The flexible printing apparatus for continuous glass processing according to claim 12, wherein the spring further comprises a lower spring, the lower spring being located between the bottom of the connecting post and the fixing base.
14. 14. The flexible printing apparatus for continuous glass processing according to claim 10, further comprising a sliding connection assembly, wherein one end of the sliding connection assembly is provided on the driving device, and the other end is provided on the printing mechanism, and the printing mechanism is in sliding connection with the driving device in a vertical direction through the sliding connection assembly.
15. 15. The flexible printing apparatus for continuous glass processing according to claim 10, wherein the printing mechanism further comprises a driving member, a pressing rod, and a paste container, the paste container being connected to the printing head.
16. 16. The flexible printing apparatus for continuous glass processing according to claim 10, wherein the printing head has a hollow structure, and the discharge opening of the printing head has a circular shape, a rectangular shape, an elliptical shape, a triangular shape, or a slit shape.

Description

Flexible printing method and equipment for continuous processing of glass and vacuum glass Technical Field The invention relates to the technical field of glass surface treatment, in particular to a flexible printing method and equipment for continuously processing glass and vacuum glass. Background Some existing glass deep processing products are obtained by further compounding treatment on the surface of a glass substrate on the basis of slurry printing treatment, such as vacuum glass, hollow glass or laminated glass. Such as vacuum glazing, typically comprises two opposing glass substrates, each of which has four peripheral edges on one of the opposing sides provided with edge sealing material for welding the edge seal during lamination. The edge seal material is very thin and is typically printed onto the glass substrate using a paste printing technique. In the prior art, the paste is printed on the glass substrate in a manner of matching a scraper with a silk screen structure. The screen structure comprises a generally rectangular frame and a layer of screen body secured within the frame. The pattern printing part on the silk screen body, namely the part provided with the printing pattern is hollowed out into pores, so that the sizing agent can be allowed to pass through, and the non-pattern printing part on the silk screen body is not transparent, so that the sizing agent cannot pass through. When in printing, the silk screen structure is placed on the glass substrate, the scraper applies certain pressure to the sizing agent on the silk screen body, meanwhile, the scraper moves at a constant speed from one end of the silk screen body to the other end, and the sizing agent is extruded onto the glass substrate by the scraper from meshes at the position of a printing pattern in the moving process. However, in this printing mode, the pattern of the printing paste on the glass substrate is completely constrained by the width, shape and size of the printing pattern formed at the hollowed-out part on the screen body, which results in a one-to-one correspondence between the screen structure with the fixed printing pattern and the glass substrate. However, the glass substrate is a non-standard part, has extremely large size and variety, and is not repeated, so that a large number of silk screen structures are required to be prepared correspondingly, a large number of working procedures and time are required to prepare the silk screen structures, and a corresponding silk screen structure is required to be prepared for each size and each pattern, and a large amount of storage and operation space is required to be designed correspondingly so as to meet the requirement. And the glass substrate can be printed after being aligned with the frame of the screen structure after each screen structure replacement, which involves a positioning link, so that the production mode of frequently replacing the screen structure is time-consuming. Under the current situation, the productivity of the vacuum glass is greatly limited, and the production cost is high, so that the improvement is needed. Disclosure of Invention Aiming at the problems in the prior art that the silk screen structure corresponds to the glass substrate one by one, so that the production steps of vacuum glass are more, the time is long and the cost is high, the invention aims to provide a flexible printing method and equipment for continuous processing of glass and vacuum glass, and the flexible preparation of printing patterns on glass substrates with any shape and any size smaller than the size of the silk screen structure is realized under the condition that the silk screen structure is not replaced while the printing quality is ensured by matching with a printing head capable of moving along a preset path and extruding the sizing agent in the moving process. In order to achieve the above purpose, the technical scheme of the invention is as follows: A flexible printing method for continuous processing of glass, comprising the steps of: S1, conveying a glass substrate to a printing workbench, ensuring that a screen structure is positioned above the glass substrate, and ensuring that a screen body in the screen structure is close to the glass substrate but is not in contact with the glass substrate, wherein the screen body is provided with non-patterning printing areas with evenly distributed mesh openings, the mesh openings at all parts in the non-patterning printing areas can be penetrated by slurry, and the non-patterning printing areas can completely cover the glass substrate; S2, the printing mechanism moves to the upper side of the glass substrate under the drive of the driving device, the printing head at the bottom of the printing mechanism moves downwards to be in contact with the silk screen body and applies downward pressure to the silk screen body, and the pressed part on the silk screen body is pressed on the glass substrate by the downward pre