CN-121609518-B - Preparation process of double-silver coated glass

CN121609518BCN 121609518 BCN121609518 BCN 121609518BCN-121609518-B

Abstract

The invention discloses a preparation process of double-silver coated glass, and relates to the technical field of glass coating. The preparation process of the double-silver coated glass comprises the following steps of placing a glass substrate on an objective table and conveying the glass substrate to a feed port of a composite coating cavity, enabling the objective table and the glass substrate to pass through the composite coating cavity in the vertical direction, coating a plurality of film layers to form a composite film layer, conveying the glass substrate out of a discharge port to the feed port through a first conveying device, conveying the objective table out of the discharge port through a second conveying device, and conveying the objective table to the feed port through a second conveying device, and repeating the step two to enable the surface of the composite film layer to form a group of composite film layers again. By designing the composite film layer with the silver layer, and enabling the glass substrate to pass through the same composite film coating cavity twice to finish double-silver layer coating, two independent composite film coating cavities are not required to be independently arranged for the double-layer silver film, the whole occupied area of equipment is obviously compressed, and the capital investment and the production field cost are reduced.

Inventors

WANG YILIANG
SUN CHENGHAI
LI GANG
XU JUN
QIAO WAN
WANG PENGFEI
ZHOU YONGSHENG
ZHANG YUNJIAN

Assignees

山东金晶科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260203

Claims (4)

1. The preparation process of the double-silver coated glass is characterized by comprising the following steps of: The method comprises the steps of firstly, placing a glass substrate (50) on an objective table, and conveying the glass substrate to a feed port of a composite coating cavity, wherein the composite coating cavity consists of a plurality of first coating cavities (8) which are communicated in sequence; Step two, enabling the objective table and the glass substrate (50) to pass through a composite coating cavity in the vertical direction, and sequentially coating a plurality of film layers on the surface of the glass substrate (50) to form a composite film layer, wherein the composite film layer comprises a silver layer (52); Step three, the glass substrate (50) is sent out from a discharge hole, conveyed to the feed hole through a first conveying device (1), and the objective table is sent out from the discharge hole and conveyed to the feed hole through a second conveying device (2); Repeating the second step to form a group of composite film again on the surface of the composite film; Step five, enabling the objective table and the glass substrate (50) to pass through a second coating cavity (9) in the vertical direction, and coating a protective layer (54) on the surface of the composite film layer to finish coating; the stage includes: A frame (33); a transfer roller (34), wherein the transfer roller (34) is rotatably mounted in the frame (33); the third motor (36), the said third motor (36) is fixed to frame (33), and is used for driving the conveying roller (34) to rotate; A protruding column (35), wherein the protruding column (35) is rotatably arranged on the outer side of the frame body (33); The first coating cavity (8) comprises: A first housing (15), wherein an empty area (17) is formed in the first housing (15), and the object stage can pass through the empty area (17); the cathode target (16) is arranged in the first shell (15) in a sliding manner, and the moving area covers the upper part of the empty area (17); The first shell (15) is internally provided with vertical transfer devices at two sides of the empty area (17), and the vertical transfer devices are used for transferring the objective table and the glass substrate (50); The vertical transfer device includes: The lifting mechanism (21), one end of the lifting mechanism (21) is fixedly arranged on the inner wall of the first shell (15); The movable frame (22) is fixedly arranged at the other end of the lifting mechanism (21); the butt joint groove (23) is rotatably arranged on one side of the movable frame (22) close to the empty area (17) and is matched with the convex column (35), and one side of the butt joint groove (23) is an opening part; The second motor (24) is fixedly arranged on the first shell (15) and is used for driving the lifting mechanism (21) to act; A driving gear (38) is fixedly arranged on the shaft part of the butt joint groove (23), a rack (39) is arranged on the movable frame (22) in a sliding mode, and the driving gear (38) is meshed with the rack (39); the moving frame (22) is fixedly provided with a double-head air cylinder (37), and a telescopic rod of the double-head air cylinder (37) is fixedly connected with the end part of the rack (39) and used for driving the rack (39) to move; The first shell (15) is internally provided with a picking and placing mechanism at two sides of the empty area (17), and the picking and placing mechanism is used for transferring the object stage to a nearest movable frame (22); The picking and placing mechanism comprises: A worm gear (25), wherein the worm gear (25) is mounted on the inner wall of the first shell (15); the support piece (26) is fixedly arranged on one shaft part of the worm gear (25); A roller (27), said roller (27) being rotatably provided at the end of the support (26), said roller (27) being able to come into contact with the stud (35); The upper end of the composite coating cavity is provided with a first buffer cavity (10), a second buffer cavity (11) is arranged between the composite coating cavity and the second coating cavity (9), and the first buffer cavity (10) and the second buffer cavity (11) have the same structure; the first buffer chamber (10) comprises: A second housing (40); a side outlet (41), wherein the side outlet (41) is arranged at one side of the second shell (40) close to the second conveying device (2); A sealing plate (42), the sealing plate (42) being mounted on the second housing (40) for closing or opening the side outlet (41); The two ends of the first buffer cavity (10) and the second buffer cavity (11) and one end of the second coating cavity (9) far away from the second buffer cavity (11) are respectively provided with an isolation valve (12).
2. The double-silver coated glass preparation process according to claim 1, wherein the first conveying device (1) comprises a first lifter and a receiving table (5), the receiving table (5) is mounted at an execution end of the first lifter, and the receiving table (5) is used for transferring the glass substrate (50) in a horizontal direction.
3. The double-silver coated glass preparation process according to claim 1, wherein the second conveying device (2) comprises a second lifter and a first conveying belt (3), and the first conveying belt (3) is arranged at the execution end of the second lifter; A second conveying belt (4) is arranged below the second coating cavity (9), and the second conveying belt (4) is used for conveying the object stage onto the first conveying belt (3); the length of the first conveying belt (3) is smaller than the length of the objective table.
4. A process for preparing double-silver coated glass according to claim 3, wherein a horizontal transfer device is arranged above the feed inlet, and the horizontal transfer device is used for transferring the objective table from the first conveyor belt (3) to the feed inlet; the horizontal transfer device includes: The second linear driving device (32), the said second linear driving device (32) locates above the feed inlet; the second sliding table (31) is slidably arranged on the second linear driving device (32); and a picking and placing mechanism is further arranged on the second sliding table (31).

Description

Preparation process of double-silver coated glass Technical Field The invention relates to the technical field of glass coating, in particular to a preparation process of double-silver coated glass. Background The double-silver coated glass gradually becomes the choice of the automotive sky curtain glass by virtue of the excellent low-radiation, heat insulation and light transmission performance brought by the double-silver film structure, and the preparation process core of the double-silver coated glass is that a composite film layer containing a silver layer is precisely coated on the surface of a glass substrate by magnetron sputtering and other technologies. The traditional double-silver coating production line adopts a coating cavity structure which is horizontally and linearly arranged, a plurality of groups of independent coating cavities are required to be sequentially arranged for completing the coating of double-layer silver films and matched film layers, the film layer structure is complex, different coating cavities are required even if the same film layer exists, the whole equipment occupies a large area, and the investment cost of capital construction and equipment is high. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a preparation process of double-silver coated glass, which solves the problems in the background art. The preparation process of the double-silver coated glass comprises the following steps: Placing a glass substrate on an objective table and conveying the glass substrate to a feed port of a composite coating cavity, wherein the composite coating cavity consists of a plurality of first coating cavities which are communicated in sequence; Step two, enabling the objective table and the glass substrate to pass through a composite coating cavity in the vertical direction, and sequentially coating a plurality of film layers on the surface of the glass substrate to form a composite film layer, wherein the composite film layer comprises a silver layer; Step three, the glass substrate is sent out from a discharge hole, conveyed to the feed hole through a first conveying device, and the objective table is sent out from the discharge hole and conveyed to the feed hole through a second conveying device; Repeating the second step to form a group of composite film again on the surface of the composite film; and fifthly, enabling the objective table and the glass substrate to pass through a second coating cavity in the vertical direction, and coating a protective layer on the surface of the composite film layer to finish coating. The object stage comprises a frame body, a conveying roller, a third motor and a convex column, wherein the conveying roller is rotatably arranged in the frame body, the third motor is fixedly arranged on the frame body and used for driving the conveying roller to rotate, and the convex column is rotatably arranged on the outer side of the frame body. Further, the first coating cavity comprises a first shell, a cathode target and a moving area, wherein a hollow area is formed in the first shell, the object stage can pass through the hollow area, the cathode target is arranged in the first shell in a sliding mode, and the moving area covers the upper portion of the hollow area. The glass substrate conveying device comprises a first shell, a second shell, a lifting mechanism, a moving frame, a butt joint groove, a second motor and a second motor, wherein the first shell is internally provided with a first shell, the first shell is internally provided with a hollow zone, the first shell is internally provided with a vertical transfer device, the vertical transfer device is used for transferring an objective table and a glass substrate, the first shell is internally provided with a first shell, one end of the lifting mechanism is fixedly arranged on the inner wall of the first shell, the moving frame is fixedly arranged on the other end of the lifting mechanism, the butt joint groove is rotatably arranged on one side, close to the hollow zone, of the moving frame and is matched with a convex column, one side of the butt joint groove is an opening, and the second motor is fixedly arranged on the first shell and is used for driving the lifting mechanism to act. Further, a driving gear is fixedly arranged on the shaft part of the butt joint groove, a rack is slidably arranged on the moving frame, the driving gear is meshed with the rack, a double-head air cylinder is fixedly arranged on the moving frame, and a telescopic rod of the double-head air cylinder is fixedly connected with the end part of the rack and used for driving the rack to move. Further, picking and placing mechanisms are arranged on two sides of the empty area in the first shell and used for transferring the object stage to a nearest moving frame, the picking and placing mechanisms comprise worm gears and worms, supporting pieces, rollers and rollers, the worm gears