CN216094498U

CN216094498U - Perovskite film coating equipment

Info

Publication number: CN216094498U
Application number: CN202122590826.6U
Authority: CN
Inventors: 黄振宇; 唐涛; 文剑锋; 李明
Original assignee: Guilin University of Technology
Current assignee: Guilin University of Technology
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-22
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses perovskite film coating equipment which comprises an unwinding roller, a winding roller, a conveying roller, a guide roller and a film body, wherein two ends of the film body are wound on the unwinding roller and the winding roller respectively, and the film body is tensioned on the outer sides of the conveying roller and the guide roller. When coating the film, equipment can carry out preliminary heating to the film earlier, subsequent drying of being convenient for, the piece of scribbling of V type structure can make the coating can distribute more evenly when the coating is on the film, at the in-process of film body motion right, the cell wall of pressurized tank can apply certain pressure to coating, thereby make coating more even, fine and close distribution is on the film body, the drying of coating can be accelerated to the dull and stereotyped spun low velocity of flow air current of jet-propelled, and can not lead to the coating on the film body inhomogeneous, in addition, coating all is in the horizontal plane from the process of coating to drying in this equipment, can not lead to coating distribution to change because of gravity.

Description

Perovskite film coating equipment

Technical Field

The utility model relates to the technical field of perovskite film preparation, in particular to perovskite film coating equipment.

Background

The existing perovskite film coating equipment is not balanced enough in stress at each part of a film when the film is coated in a large area, the coating is difficult to be uniformly distributed on the film, and air easily enters the coating on the surface of the film, so that fine bubbles appear after the coating is dried, the patent document with the application number of CN202020886068.5 provides perovskite film coating equipment, the coating fixing head is arranged, the blanking performance can be ensured by arranging the blanking groove at the lower end of the coating fixing head, the coating is uniformly distributed above the film, but the mode can not ensure that the coating at different positions and the film have approximately the same pressure, the coating on the film can have different thicknesses, and when the equipment is used for conveying the film, the direction of the film is changed when the coating is not dried, and the coating on the surface of the film is not uniformly distributed under the action of gravity, to this end, we propose a perovskite thin film coating apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that in the prior art, stress at each part of a film is not balanced enough, coating is difficult to be uniformly distributed on the film, and air easily enters the coating on the surface of the film, so that fine bubbles are generated after a coating is dried.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a perovskite film coating equipment, is including unreeling roller, wind-up roll, conveying roller, guide roll and film body, the both ends of film body are respectively around establishing on unreeling roller, wind-up roll, and the tensioning of film body is in the outside of conveying roller and guide roll, the top of film body is equipped with coating mechanism, coating mechanism is including installing the guide rail, fixed mounting has first fan, blanking machine and second fan on the installation guide rail.

Further, the sealed intercommunication of the output of blanking machine has the nozzle stub, the sealed intercommunication of the lower extreme of nozzle stub has the cavity board, cavity board symmetric connection has many shunt tubes, the lower extreme fixedly connected with coating film of shunt tube, coating film is the V type, separate in the coating film and be equipped with flash passageway and exhaust passage, and many shunt tubes all are linked together with the flash passageway.

Further, a plurality of air faucets are symmetrically installed on one side of the coating piece facing the unwinding roller, the air faucets are communicated with the exhaust passage, and a hose is also communicated between the output end of the first fan and the exhaust passage.

Furthermore, the bottom of the coating piece is provided with a pressurizing groove communicated with the flash channel, the width of the pressurizing groove is smaller than that of the coating piece, and the plane where the groove wall of the pressurizing groove is located is obliquely directed to the central axis of the conveying roller.

Further, the output end of the second fan is hermetically communicated with a connecting pipe, the lower end of the connecting pipe is hermetically connected with an air injection flat plate, a plurality of air outlets are formed in the lower surface of the air injection flat plate, and the length of the air injection flat plate is greater than the width of the film body.

Furthermore, every air cock all is the toper and directional film body, and the internal diameter of air cock is less than the internal diameter of air outlet.

When coating the film, equipment can carry out preliminary heating to the film earlier, subsequent drying of being convenient for, the piece of scribbling of V type structure can make the coating can distribute more evenly when the coating is on the film, at the in-process of film body motion right, the cell wall of pressurized tank can apply certain pressure to coating, thereby make coating more even, fine and close distribution is on the film body, the drying of coating can be accelerated to the dull and stereotyped spun low velocity of flow air current of jet-propelled, and can not lead to the coating on the film body inhomogeneous, in addition, coating all is in the horizontal plane from the process of coating to drying in this equipment, can not lead to coating distribution to change because of gravity.

Drawings

FIG. 1 is a schematic structural diagram of a perovskite thin film coating apparatus according to the present invention;

FIG. 2 is a schematic structural diagram of a coating mechanism in a perovskite thin film coating apparatus according to the present invention.

In the figure: the device comprises an unwinding roller 1, a winding roller 2, a conveying roller 3, a guide roller 4, a film body 5, a mounting guide rail 6, a first fan 7, a blanking machine 8, a second fan 9, a hollow plate 10, a coating piece 11, a hose 12, a short pipe 13, a shunt pipe 14, a connecting pipe 15, an air injection flat plate 16, an air nozzle 17 and a pressurizing groove 18.

Detailed Description

Referring to fig. 1-2, a perovskite thin film coating device comprises an unwinding roller 1, a winding roller 2, a conveying roller 3, a guide roller 4 and a thin film body 5, wherein two ends of the thin film body 5 are respectively wound on the unwinding roller 1 and the winding roller 2, and film body 5 tensioning is in the outside of conveying roller 3 and guide roll 4, conveying roller 3 is used for transporting of film body 5, wind-up roll 2 is used for rolling film body 5 after the coating, the top of film body 5 is equipped with coating mechanism, coating mechanism is including installing guide rail 6, fixed mounting has first fan 7 on the installing guide rail 6, blanking machine 8 and second fan 9, blanking machine 8 mainly used stores the coating, the staff can control blanking machine 8 through external controller (not shown) regularly, the ration is to carrying the coating in nozzle stub 13, this means of control and circuit connection mode are prior art, no longer describe herein any more.

The output end of the blanking machine 8 is hermetically communicated with a short pipe 13, the lower end of the short pipe 13 is hermetically communicated with a hollow plate 10, the hollow plate 10 is symmetrically connected with a plurality of shunt tubes 14, the lower end of the shunt tubes 14 is fixedly connected with a coating piece 11, the hollow plate 10 and the shunt tubes 14 are arranged, so that coatings entering the coating piece 11 are approximately same in pressure, the coating piece 11 is V-shaped, a flash channel and an exhaust channel are arranged in the coating piece 11 in a separated mode, and the shunt tubes 14 are communicated with the flash channel.

A plurality of air nozzles 17 are symmetrically arranged on one side of the coating piece 11 facing the unwinding roller 1, the air nozzles 17 are communicated with the exhaust passage, and a hose 12 is also communicated between the output end of the first fan 7 and the exhaust passage.

The bottom of the coating piece 11 is provided with a pressurizing groove 18 communicated with the flash channel, the width of the pressurizing groove 18 is smaller than that of the coating piece 11, the plane where the groove wall of the pressurizing groove 18 is located is inclined to point to the central axis of the conveying roller 3, as shown in fig. 2, the shape of the pressurizing groove 18 is similar to an inverted hook pair, and when the coating passes through the right side of the pressurizing groove 18, the received pressure can be increased, so when the film body 5 moves rightwards, the relative movement between the pressurizing groove 18 and the film body 5 can enable the groove wall of the pressurizing groove 18 to apply certain pressure to the film body 5, so that the coating of the coating is more uniform, bubbles are not easily generated, and the coating quality is improved.

The output end of the second fan 9 is communicated with a connecting pipe 15 in a sealing mode, the lower end of the connecting pipe 15 is connected with an air injection flat plate 16 in a sealing mode, a plurality of air outlets are formed in the lower surface of the air injection flat plate 16, the length of the air injection flat plate 16 is larger than the width of the film body 5, and paint on the film body 5 can be fully dried.

Each air tap 17 is conical and points to the film body 5, the inner diameter of each air tap 17 is smaller than that of the air outlet, the flow rate of air flow ejected from the air tap 17 is larger, the temperature of the film body 5 can be quickly improved, the flow rate of air flow ejected from the air injection flat plate 16 is smaller, the air outlet amount is larger, and coating material cannot be unevenly distributed when the coating material is dried.

When the device is used, the direction of the coating piece 11 is placed as shown in figure 1, the height of the coating piece 11 is adjusted, so that proper pressure is provided between the coating piece 11 and the film body 5, and the film body 5 can be driven to move at a constant speed when the conveying roller 3 rotates;

the working personnel control the first fan 7, the blanking machine 8 and the second fan 9 to be started through an external controller, the first fan 7 conveys hot air into an exhaust passage in the coating piece 11 through a hose 12, and the hot air is blown to the film body 5 through a plurality of air nozzles 17 to improve the temperature of the film body 5;

the blanking machine 8 simultaneously conveys the coating into the hollow plate 10 through the short pipe 13, the hollow plate 10 and the shunt pipe 14 convey the coating into the flash passage in the coating piece 11 approximately uniformly, the coating then enters the pressurizing groove 18, the pressure between the coating in the pressurizing groove 18 and the film body 5 is approximately the same, and the coating can be more uniformly coated;

in the process that the film body 5 moves rightwards, the groove wall of the pressurizing groove 18 applies certain pressure to the coating, so that the coating is more uniformly and compactly distributed on the film body 5;

when the film body 5 moves to the air-jet flat plate 16, the low-flow-rate air flow ejected from the air-jet flat plate 16 accelerates the drying of the paint, and does not cause the paint on the film body 5 to be uneven.

Claims

1. The utility model provides a perovskite film coating equipment, is including unreeling roller (1), wind-up roll (2), conveying roller (3), guide roll (4) and film body (5), its characterized in that, the both ends of film body (5) are respectively around establishing on unreeling roller (1), wind-up roll (2), and the outside of film body (5) tensioning at conveying roller (3) and guide roll (4), the top of film body (5) is equipped with coating mechanism, coating mechanism is including installation guide rail (6), fixed mounting has first fan (7), blanking machine (8) and second fan (9) on installation guide rail (6).

2. The perovskite thin film coating equipment as claimed in claim 1, wherein the output end of the blanking machine (8) is hermetically communicated with a short pipe (13), the lower end of the short pipe (13) is hermetically communicated with a hollow plate (10), the hollow plate (10) is symmetrically connected with a plurality of shunt pipes (14), the lower end of the shunt pipe (14) is fixedly connected with a coating piece (11), the coating piece (11) is V-shaped, a flash channel and an exhaust channel are separately arranged in the coating piece (11), and the shunt pipes (14) are communicated with the flash channel.

3. The perovskite thin film coating equipment as claimed in claim 2, wherein a plurality of air nozzles (17) are symmetrically arranged on one side of the coating member (11) facing the unwinding roller (1), the air nozzles (17) are communicated with an exhaust passage, and a hose (12) is communicated between the output end of the first fan (7) and the exhaust passage.

4. The perovskite thin film coating equipment as claimed in claim 2, wherein the bottom of the coating piece (11) is provided with a pressurizing groove (18) communicated with a flash channel, the width of the pressurizing groove (18) is smaller than that of the coating piece (11), and the plane where the groove wall of the pressurizing groove (18) is positioned is obliquely directed to the central axis of the conveying roller (3).

5. The perovskite thin film coating equipment as claimed in claim 3, wherein the output end of the second fan (9) is in sealed communication with a connecting pipe (15), the lower end of the connecting pipe (15) is in sealed connection with an air injection flat plate (16), the lower surface of the air injection flat plate (16) is provided with a plurality of air outlets, and the length of the air injection flat plate (16) is greater than the width of the thin film body (5).

6. The perovskite thin film coating apparatus as claimed in claim 5, wherein each of the air nozzles (17) is tapered and directed toward the thin film body (5), and the inner diameter of the air nozzle (17) is smaller than the inner diameter of the air outlet.