WO2020019438A1

WO2020019438A1 - Transfer printing plate cleaning device

Info

Publication number: WO2020019438A1
Application number: PCT/CN2018/105627
Authority: WO
Inventors: 胡聪
Original assignee: 武汉华星光电技术有限公司
Priority date: 2018-07-25
Filing date: 2018-09-14
Publication date: 2020-01-30
Also published as: CN108906735A

Abstract

A transfer printing plate cleaning device, comprising a spraying mechanism (10), a wiping mechanism (20), an ultrasonic cleaning mechanism (30), an air blowing mechanism (40), and a conveying mechanism (50). The spraying mechanism (10) comprises a spraying groove (11) and a spraying component, and the wiping mechanism (20) comprises a wiping member, wherein the spraying component comprises first spray heads (12), the first spray heads (12) are arranged in the vertical direction, and the wiping member is disposed transversely. By means of the cleaning device, suspension cleaning is changed into flat cleaning, and liquid is prevented from staying at the bottom of a transfer printing plate.

Description

Cleaning device for transfer plate

Technical field

The invention relates to the technical field of transfer plate cleaning, in particular to a transfer plate cleaning device.

Background technique

In the production process of the liquid crystal display panel, in order to enable the liquid crystal molecules to be correctly aligned, a layer of a polyimide (PI) film needs to be coated on the surface of the array substrate and the color filter substrate (CF), and then the PI film The rubbing treatment is performed to realize the alignment of the liquid crystal molecules. The coating of PI films on array substrates and color film substrates generally uses an efficient transfer plate (APR plate) transfer technology.

After the transfer plate is transferred, a certain amount of PI liquid usually remains on the transfer plate, which requires the transfer plate to be cleaned before it can be used for transfer again. In the prior art, when the transfer plate is cleaned, generally, the transfer plate is vertically placed in a washing tank, and the transfer plate is washed with a cleaning solvent to remove the PI liquid remaining on the transfer plate.

However, because the transfer plate is suspended for cleaning, a residual cleaning solvent remains on the bottom of the APR plate, which affects the effect of subsequent PI liquid printing.

technical problem

The invention provides a transfer plate cleaning device to solve the technical problem that after the transfer plate is cleaned, residual cleaning solvents remain on the bottom of the APR plate, thereby affecting the subsequent printing effect of the PI liquid.

Technical solutions

A transfer plate cleaning device includes:

A spraying mechanism including a spraying member for spraying and cleaning the transfer plate;

A wiping mechanism comprising a wiping member for wiping the transfer plate after spray cleaning;

Wherein, the spraying member includes a first spraying head, the first spraying head is disposed in a vertical direction, and the wiper is disposed in a lateral direction; the first spraying head is disposed upward or downward.

Preferably, the spraying mechanism further includes a spraying tank, and the first spraying head is disposed in the spraying tank.

Preferably, the spraying mechanism further includes a liquid blocking plate, and a gap is formed between the liquid blocking plate and the spraying tank to accommodate a transfer plate.

Preferably, the spraying member further includes a second spray head disposed on the liquid baffle, and the second spray head is disposed downward or upward.

Preferably, the wiping member includes a first roller brush disposed horizontally for wiping the transfer plate.

Preferably, the wiping member further includes a second roller brush disposed in parallel with the first roller brush and located above or below the first roller brush.

Preferably, the transfer plate cleaning device further includes an ultrasonic cleaning mechanism that performs ultrasonic cleaning on the transfer plate.

Preferably, the transfer plate cleaning device further includes a blower mechanism, and the blower mechanism includes a blower member disposed obliquely to remove the residual liquid on the transfer plate.

Preferably, the cleaning device further includes a transport mechanism, the transport mechanism includes a support arm and a transport machine for transporting the support arm, and the support arm is arranged in a vertical direction.

A transfer plate cleaning device includes:

The spraying member includes a first spraying head, the first spraying head is disposed in a vertical direction, and the wiping member is disposed in a lateral direction.

Beneficial effect

The beneficial effect of the present invention is that the hanging cleaning is changed to a flat cleaning to prevent liquid from staying on the bottom of the transfer plate, and a cleaning mechanism and an ultrasonic cleaning mechanism and a blowing mechanism are combined to achieve a better cleaning effect and a drying effect. Prevent the liquid from remaining on the transfer plate and affect the effect of subsequent PI liquid printing.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the embodiments or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely inventions. For some embodiments, for those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of a cleaning device in a specific embodiment of the present invention;

2 is a schematic structural diagram of a transfer plate in a specific embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a transport mechanism in a specific embodiment of the present invention.

Reference signs:

10. Spraying mechanism; 11. Spray tank; 12. First spray head; 13. Second spray head; 14. Fender;

20, wiping mechanism; 21, the first roller brush; 22, the second roller brush;

30. Ultrasonic cleaning mechanism; 31. Cleaning tank;

40. Blowing mechanism; 41. Upwind knife; 42. Downwind knife;

50. Transport mechanism; 51. Transport machine; 52. Support arm; 53. Drive; 531. Telescopic rod;

60. Transfer plate; 61. Transfer surface; 62. Convex peak.

DETAILED DESCRIPTION OF THE INVENTION

The following descriptions of the embodiments are made with reference to additional illustrations to illustrate specific embodiments in which the present invention can be implemented. The directional terms mentioned in the present invention, such as [up], [down], [front], [rear], [left], [right], [in], [out], [side], etc., are for reference only. The direction of the attached schema. Therefore, the directional terms used are for explaining and understanding the present invention, but not for limiting the present invention. In the figure, similarly structured units are denoted by the same reference numerals.

The present invention is directed to the existing transfer plate cleaning device. Because the transfer plate is suspended for cleaning, residual cleaning solvents remain on the bottom of the APR plate. After drying, cracks will appear on the bottom of the APR plate, which will affect the subsequent PI liquid printing effect This embodiment can solve this defect.

A cleaning device for a transfer plate, as shown in FIG. 1 and FIG. 2, the cleaning device for the transfer plate 60 includes a conveyor 51 and a structure 50 for moving the transfer plate 60, and further includes a transport along the transfer plate 60. The spraying mechanism 10, the wiping mechanism 20, the ultrasonic cleaning mechanism 30, and the blowing mechanism 40 provided in the route are arranged. Through multiple processes, better cleaning and drying effects are achieved.

The spraying mechanism 10 includes a spraying tank 11 and a spraying component. The spraying component performs spray cleaning on the transfer plate 60, and the spraying tank 11 receives and receives the cleaning liquid falling on the transfer plate 60 and performs cleaning. The liquid is recycled to ensure the cleanliness of the working environment and prevent the cleaning liquid from polluting the environment.

Specifically, the spraying member includes a first spraying head 12, and the first spraying head 12 is vertically arranged to spray-clean the transfer surface 61 of the transfer plate 60. When the transfer plate 60 is spray-washed, the transfer plate 60 is placed horizontally, and the transfer plate 60 is spray-washed by the first nozzle 12 to remove the PI liquid remaining on the transfer plate 60 while preventing the cleaning liquid from staying. At the bottom of the transfer plate 60, the effect of subsequent PI liquid printing is affected.

Specifically, the first spray head 12 is disposed in the spray tank 11 and the first spray head 12 is disposed upward to perform spray cleaning on the transfer surface 61 located at the lower portion of the transfer plate 60.

Generally, due to process design requirements, the transfer surface 61 of the existing transfer plate 60 will be provided with ridges 62 arranged in a mesh pattern, and grooves will be formed between adjacent peaks 62. When cleaning the transfer plate 60 The transfer surface 61 of the transfer plate 60 is placed downward. When the transfer plate 60 passes through the cleaning mechanism, the first spray head 12 sprays the cleaning liquid upward to clean the transfer surface 61, and the cleaning liquid remaining on the transfer surface 61 Falling under the action of gravity, so as to prevent the residual cleaning liquid from being accumulated in the groove, so as to achieve a better cleaning effect.

Wherein, a horizontally arranged liquid blocking plate 14 is fixed above the shower tank 11, and there is a gap for accommodating the transfer plate 60 between the liquid blocking plate 14 and the shower tank 11.

The spraying member further includes a second spraying head 13 disposed on the liquid blocking plate 14, and the second spraying head 13 is disposed downward or upward to perform spray cleaning on the transfer plate 60. After the transfer plate 60 moves to the gap between the liquid blocking plate 14 and the shower tank 11, the first spray head 12 and the second spray head 13 are combined to clean the transfer surface 61 and the upper side of the transfer plate 60, thereby achieving Better cleaning results.

It should be noted that the first spray head 12 and the second spray head 13 may be fixed spray heads or rotary spray heads.

The wiping mechanism 20 includes a laterally disposed wiping member, and the wiping member includes a first roller brush 21 disposed horizontally. The first roller brush 21 can contact the transfer surface 61 of the transfer plate 60 to wipe the rotation.印面 61。 Printing surface 61. After the transfer plate 60 is cleaned with the cleaning liquid, the transfer surface 61 of the transfer plate 60 is wiped by the first roller brush 21 to remove the residual liquid remaining on the transfer plate 60 to prevent the residual liquid from affecting the effect of subsequent PI liquid printing. .

The wiping member further includes a second roller brush 22 arranged in parallel with the first roller brush 21 and located above the first roller brush 21. The first roller brush 21 can be in contact with the opposite surface of the transfer surface 61 to wipe the transfer surface. Opposite side of 61. In this embodiment, the opposite side of the transfer surface 61 is the upper side of the transfer plate 60. The upper side of the transfer plate 60 is wiped by the second roller brush 22 to remove the residual liquid on the upper side to prevent the transfer plate 60 The residual liquid on the upper side flows onto the transfer surface 61.

It should be noted that, in this embodiment, the first roller brush 21 and the second roller brush 22 are both fine soft bristles. The bristles on the fine-bristle bristle brushes are more convenient for cleaning the residual liquid remaining in the grooves, thereby wiping the transfer plate 60 more cleanly.

The blower mechanism 40 includes a blower member disposed obliquely to remove the residual liquid on the transfer plate 60. The blower member includes an upper wind blade 41 and a lower wind blade 42. The transfer plate 60 after ultrasonic cleaning is blown by the blower member. Blowing off the residual liquid on the transfer plate 60 prevents the effect of subsequent PI liquid printing from being affected.

The conveyer 51 structure 50 includes a support arm 52 and a conveyer 51 that conveys the support arm 52. The support arm 52 is disposed in a vertical direction. The transfer plate 60 is disposed on the support arm 52.

It should be noted that the conveyor 51 may be a belt conveyor or a chain conveyor. In this embodiment, the conveyor 51 is a chain conveyor. The support arm 52 is fixedly connected to the conveying chain of the transporter 51, and the transfer plate 60 is driven by the transporter 51 to sequentially pass through each process.

It should be noted that the transporter 51 may be disposed above or below the shower tank 11. In this embodiment, the transporter 51 is disposed below the shower tank 11.

Among them, as shown in FIG. 3, a driving member 53 that drives the transfer plate 60 to move horizontally in a direction perpendicular to the conveying direction is fixed on the support arm 52, and the driving member 53 may be an electric cylinder, an air cylinder, or a hydraulic cylinder; The telescopic rod 531 of the driving member 53 is horizontally disposed perpendicular to the conveying direction, and the transfer plate 60 is detachably connected to the telescopic rod 531 through a fixing member such as a buckle. When the transfer plate 60 is spray-washed by the spray mechanism 10, the transfer member 60 is driven by the driving member 53 to reciprocate in the axial direction of the telescopic rod 531 to achieve a better cleaning effect. At the same time, the transfer plate 60 is reciprocated. The generated shaking causes the liquid remaining on the transfer plate 60 to fall, preventing the liquid from remaining on the transfer plate 60.

A cleaning method for a transfer plate, which is cleaned by using the aforementioned cleaning device, the cleaning method includes the following steps:

S10. The first spray head 12 of the spraying mechanism 10 sprays and cleans the horizontally placed transfer plate 60 with a cleaning liquid;

S20. The wiping member of the wiping mechanism 20 wipes the transfer plate 60 after shower cleaning to remove the residual liquid on the transfer plate 60;

Wherein, the first spray head 12 is disposed in a vertical direction, and the wiper is disposed in a lateral direction.

In one embodiment of the present invention, after step S20, the transfer plate 60 is ultrasonically cleaned by the ultrasonic cleaning mechanism 30. Before using the ultrasonic cleaning mechanism 30 to perform secondary cleaning on the transfer plate 60, the cleaning liquid remaining on the transfer plate 60 is removed by a wiper, so that the ultrasonic cleaning has a better effect.

In another embodiment of the present invention, before step S20, the transfer plate 60 is ultrasonically cleaned by the ultrasonic cleaning mechanism 30. The ultrasonic cleaning mechanism 30 cleans the transfer plate 60 again to remove the cleaning liquid remaining on the transfer plate 60, and then wipes the transfer plate 60 with a wiper to achieve a better drying effect.

Wherein, after the ultrasonic cleaning of the transfer plate 60 by the ultrasonic cleaning mechanism 30, the transfer plate 60 is blown by the blowing member of the blowing mechanism 40 to remove the liquid remaining on the transfer plate 60. The transfer plate 60 is blown by a blowing member, and the wiper is combined with the blowing member to achieve a better drying effect and prevent liquid from remaining on the transfer plate 60 from affecting the subsequent PI liquid printing effect.

The beneficial effect of the present invention is that the hanging cleaning is changed to a flat cleaning to prevent liquid from staying on the bottom of the transfer plate 60, and a better cleaning effect is achieved by combining the wiping mechanism 20, the ultrasonic cleaning mechanism 30, and the blowing mechanism 40. And drying effect to prevent liquid from remaining on the transfer plate 60 from affecting the effect of subsequent PI liquid printing.

In summary, although the present invention has been disclosed as above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications without departing from the spirit and scope of the present invention. This kind of modification and retouching, therefore, the protection scope of the present invention is subject to the scope defined by the claims.

Claims

A transfer plate cleaning device, wherein the transfer plate cleaning device includes:

A spraying mechanism including a spraying member for spraying and cleaning the transfer plate;

A wiping mechanism comprising a wiping member for wiping the transfer plate after spray cleaning;

Wherein, the spraying member includes a first spraying head, the first spraying head is disposed in a vertical direction, and the wiper is disposed in a lateral direction; the first spraying head is disposed upward or downward.
The cleaning device for a transfer plate according to claim 1, wherein the spraying mechanism further comprises a spraying tank, and the first spraying head is disposed in the spraying tank.
The cleaning device for a transfer plate according to claim 2, wherein the spray mechanism further comprises a liquid blocking plate, and a gap is formed between the liquid blocking plate and the spray tank to accommodate the transfer plate.
The cleaning device for a transfer plate according to claim 3, wherein the spraying member further comprises a second spray head disposed on the liquid baffle, and the second spray head is disposed downward or upward.
The transfer plate cleaning device according to claim 1, wherein the wiping member includes a first roller brush disposed horizontally for wiping the transfer plate.
The cleaning device for a transfer plate according to claim 5, wherein the wiping member further comprises a second roller brush disposed in parallel with the first roller brush and located above or below the first roller brush.
The transfer plate cleaning device according to claim 1, wherein the transfer plate cleaning device further comprises an ultrasonic cleaning mechanism that ultrasonically cleans the transfer plate.
The transfer plate cleaning device according to claim 1, wherein the transfer plate cleaning device further comprises a blower mechanism, the blower mechanism including a blower member disposed obliquely to remove a liquid remaining on the transfer plate.
The transfer plate cleaning device according to claim 1, wherein the cleaning device further comprises a transport mechanism, the transport mechanism including a support arm and a transporter transporting the support arm, the support arm is vertically Settings.
A transfer plate cleaning device, wherein the transfer plate cleaning device includes:

A spraying mechanism including a spraying member for spraying and cleaning the transfer plate;

A wiping mechanism comprising a wiping member for wiping the transfer plate after spray cleaning;

The spraying member includes a first spraying head, the first spraying head is disposed in a vertical direction, and the wiping member is disposed in a lateral direction.
The cleaning device for a transfer plate according to claim 10, wherein the spraying mechanism further comprises a spraying tank, and the first spraying head is disposed in the spraying tank.
The cleaning device for a transfer plate according to claim 11, wherein the spray mechanism further comprises a liquid blocking plate, and a gap is formed between the liquid blocking plate and the spray tank to accommodate the transfer plate.
The cleaning device for a transfer plate according to claim 12, wherein the spraying member further comprises a second spray head provided on the liquid baffle, and the second spray head is disposed downward or upward.
The transfer plate cleaning device according to claim 10, wherein the wiping member includes a first roller brush disposed horizontally for wiping the transfer plate.
The cleaning device for a transfer plate according to claim 14, wherein the wiping member further comprises a second roller brush disposed in parallel with the first roller brush and located above or below the first roller brush.
The transfer plate cleaning device according to claim 10, wherein the transfer plate cleaning device further comprises an ultrasonic cleaning mechanism that ultrasonically cleans the transfer plate.
The transfer plate cleaning device according to claim 10, wherein the transfer plate cleaning device further comprises a blower mechanism, the blower mechanism comprising a blower member disposed obliquely to remove a liquid remaining on the transfer plate.
The transfer plate cleaning device according to claim 10, wherein the cleaning device further comprises a transport mechanism, the transport mechanism including a support arm and a transporter transporting the support arm, the support arm is vertically Settings.