CN220514846U

CN220514846U - Full-automatic ink jet printing shower nozzle cleaning system

Info

Publication number: CN220514846U
Application number: CN202321450127.4U
Authority: CN
Inventors: 王卫涛
Original assignee: Anhui Xinshijia Semiconductor Display Technology Co ltd
Current assignee: Anhui Xinshijia Semiconductor Display Technology Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2024-02-23
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a full-automatic ink-jet printing nozzle cleaning system, which comprises a lotion bottle (16), a middle water tank (9) and a spray tank (10), wherein a water collecting tank (17) is arranged below the bottom of the spray tank (10), and the spray tank (10) is communicated with the water collecting tank (17) through a drain pipe; the water collection tank (17) is connected with the washing liquid bottle (16) through a washing liquid recovery pipeline. By adopting the technical scheme, the washing liquid collecting and repeated supplying device is increased, the recycling of the washing liquid is realized, the utilization rate of the washing liquid and the washing efficiency of spraying are increased, and therefore the consumption of the washing liquid and the washing time are saved.

Description

Full-automatic ink jet printing shower nozzle cleaning system

Technical Field

The utility model belongs to the technical field of semiconductor display device manufacturing process and equipment. More particularly, the present utility model relates to a fully automatic inkjet printing Head (IJP Head) cleaning system.

Background

In the prior art, the whole cleaning process of the cleaning method of the inkjet printing Head (IJP Head) is divided into three stages, respectively:

in the first stage of cleaning, the flow direction of the cleaning solution is as follows:

wash Bottle 16 (Bottle), wash Bottle outlet valve 4, spray pump 7, restrictor 15, spray tank inlet valve 5, intermediate tank purge valve 3, intermediate tank 9 (Sub-tank).

In the second stage of washing, the flow direction of the washing liquid is as follows:

the water tank 9, the spray pump 7, the throttle 15, the lotion bottle outlet valve 4, the middle water tank cleaning water valve 3 and the middle water tank 9. Mainly cleaning the inner pipeline, the middle water tank 9, the valve, the spray pump 7 and the throttle 15.

And (3) cleaning a third stage: the wash liquid starts to flow downwards under the action of gravity, is discharged outside the Head through the spray tank 10 (Nozzle), and is washed during the flow of the wash liquid through the spray tank 10 (Nozzle).

After the third stage cleaning is finished, the cleaning solution bottle is replaced from the first stage until the bottle cleaning solution is transferred to the Tank; and after the second bottle of washing liquid is used up, replacing the third bottle, and after the third bottle is used up, cleaning is finished.

The bottle capacity is 500cc, the volume of the washing liquid can be 400cc, the effective capacity of the Sub-tank is 40cc, and one bottle of washing liquid can be filled with the Sub-tank ten times, and the device alarms and prompts after ten times of each cycle.

The current solution of the equipment needs to use three bottles of washing liquid, and the Head can be washed out only by repeating the steps from one stage to three stages thirty times, and 1200cc of washing liquid is needed. The liquid needs to be changed for 2 times in the middle, and each liquid change needs 10 minutes. The wash solution is only disposable as it cannot be recovered.

Since the washing liquid cannot be recovered, a great waste is generated. If the washing liquid is recovered, the production efficiency is greatly reduced.

Disclosure of Invention

The utility model provides a full-automatic ink-jet printing nozzle (IJP Head) cleaning system, which aims to improve the utilization rate of a cleaning solution and the cleaning efficiency of spraying, so that the consumption of the cleaning solution is saved, and the cleaning time is shortened.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the full-automatic IJP Head cleaning system comprises a washing liquid bottle, a middle water tank and a spraying groove; a water collecting tank is arranged below the bottom of the spraying tank, and the spraying tank is communicated with the water collecting tank through a drain pipe; the water collection tank is connected with the washing liquid bottle through a washing liquid recovery pipeline.

And a spray pump is arranged on a pipeline of the washing liquid bottle, which is communicated with the spray tank.

A washing liquid bottle water outlet valve is arranged on a pipeline between the washing liquid bottle and the spray pump; the pipeline between the spray pumps of the water outlet valve of the lotion bottle is divided into two branch pipes, one branch pipe is connected to the middle water tank, and the other branch pipe is connected to the spray tank.

And a cleaning solution recovery pump is arranged on the cleaning solution recovery pipeline.

And a cleaning liquid recovery valve is arranged on the cleaning liquid recovery pipeline.

The washing liquid bottle set up washing liquid bottle high level sensor and liquid bottle low level sensor.

The middle water tank is provided with a middle water tank high liquid level sensor and a middle water tank low liquid level sensor.

And a total water inlet valve is arranged on a water inlet pipeline of the washing liquid bottle.

A drain valve of the middle water tank is arranged on a drain pipeline of the middle water tank; and a cleaning water valve of the intermediate water tank is arranged on a pipeline which is communicated with the spray tank.

A throttle is arranged on a pipeline connected between the spray pump and the spray tank; and a water inlet valve of the spraying groove is arranged on a pipeline connected between the throttle and the spraying groove.

By adopting the technical scheme, the washing liquid collecting and repeatedly supplying device is increased, the cyclic use of the washing liquid is realized, the utilization rate of the washing liquid and the washing efficiency of spraying are increased, and therefore, the consumption of the washing liquid and the washing time are saved.

Drawings

The contents of the drawings and the marks in the drawings are briefly described as follows:

FIG. 1 is a schematic diagram of a prior art IJP Head cleaning system;

FIG. 2 is a schematic flow of a wash liquid of the first stage of the present utility model;

FIG. 3 is a schematic flow of a wash liquid of the second stage of the present utility model;

FIG. 4 is a schematic flow of wash liquid in the third stage of washing according to the present utility model;

FIG. 5 is a schematic flow of a fourth stage wash solution in accordance with the present utility model.

Marked in the figure as:

1. the device comprises a general water inlet valve, a 2 middle water tank drain valve, a 3 middle water tank cleaning water valve, a 4 middle water tank water outlet valve, a 5 spray tank water inlet valve, a 6 cleaning liquid recovery valve, a 7 spray pump, a 8 cleaning liquid recovery pump, a 9 middle water tank (Sub-tank), a 10 spray tank (nozzle), a 11, a cleaning liquid bottle high liquid level sensor, a 12, a cleaning liquid bottle low liquid level sensor, a 13, a middle water tank high liquid level sensor, a 14, a middle water tank low liquid level sensor, a 15, a throttle, a 16, a cleaning liquid bottle, a 17 and a water collecting tank.

Detailed Description

The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the utility model by those skilled in the art.

1. The structure of the utility model:

the structure of the utility model as shown in fig. 2 to 5 is a full-automatic ink-jet printing nozzle (IJP Head) cleaning system, comprising a lotion bottle 16, an intermediate water tank 9 and a spray tank 10; the automatic IJP Head cleaning method is realized, and all components of the IJP Head can be automatically cleaned.

In order to solve the problems in the prior art and overcome the defects thereof and realize the purposes of improving the utilization rate of the washing liquid and the washing efficiency of spraying, thereby saving the consumption of the washing liquid and reducing the washing time, the utility model adopts the following technical scheme:

as shown in fig. 2 to 5, in the full-automatic IJP Head cleaning system of the present utility model, a water collection tank 17 is disposed below the bottom of the spray tank 10, and the spray tank 10 is communicated with the water collection tank 17 through a drain pipe; the water collection tank 17 is connected with the washing liquid bottle 16 through a washing liquid recovery pipeline.

According to the utility model, on the basis of a cleaning scheme in the prior art, a cleaning solution collecting and repeatedly supplying device is added, namely, the large circulation of cleaning solution can be realized, and the utilization rate of the cleaning solution and the cleaning efficiency of the Nozzle can be increased, so that the consumption of the cleaning solution and the cleaning time are saved.

A shower pump 7 is arranged on the line leading from the washing liquid bottle 16 to the shower tank 10.

The function of the shower pump 7 is to feed the washing liquid in the washing liquid bottle 16 and the water in the intermediate water tank 9 into the shower tank 10.

A lotion bottle water outlet valve 4 is arranged on a pipeline between the lotion bottle 16 and the spray pump 7; the pipeline between the spray pumps 7 of the lotion bottle outlet valve 4 is divided into two branch pipes, one branch pipe is connected to the middle water tank 9, and the other branch pipe is connected to the spray tank 10.

One branch pipe is realized: the water tank 9, the spray pump 7, the throttle 15, the lotion bottle outlet valve 5, the middle water tank cleaning water valve 3 and the middle water tank 9.

The other branch pipe is realized: wash Bottle 16 (Bottle), wash Bottle outlet valve 4, spray pump 7, restrictor 15, spray tank inlet valve 5, intermediate tank purge valve 3, intermediate tank 9 (Sub-tank).

The cleaning liquid recovery pipeline is provided with a cleaning liquid recovery pump 8 and a cleaning liquid recovery valve 6.

The cleaning liquid recovery pump 8 and the cleaning liquid recovery valve 6 are realized: the water collection Tank 17 (Tank) →the cleaning liquid recovery valve 6→the cleaning liquid recovery pump 8→the cleaning liquid bottle 16 (bottle).

The lotion bottle 16 is provided with a lotion bottle high level sensor 11 and a lotion bottle low level sensor 12.

The middle water tank 9 is provided with a middle water tank high liquid level sensor 13 and a middle water tank low liquid level sensor 14.

The liquid level sensors acquire liquid level signals, and a basis is provided for controlling each stage of the system.

A total water inlet valve 1 is arranged on the water inlet pipeline of the lotion bottle 16.

The main inlet valve 1 supplies fresh wash water to the wash bottle 16.

A middle water tank drain valve 2 is arranged on the drain pipeline of the middle water tank 9; and a cleaning water valve 3 of the intermediate water tank is arranged on a pipeline which is communicated with the spray tank 10 and is used for cleaning the intermediate water tank.

The two valves have the following functions: discharging the surplus waste water in the intermediate water tank 9; the cleaning water in the intermediate water tank 9 is sent to the shower tank 10.

A throttle 15 is arranged on a pipeline connected between the spray pump 7 and the spray tank 10; a spray tank water inlet valve 5 is arranged on a pipeline connected between the throttle 15 and the spray tank 10.

The function of the restriction 15 is to regulate the flow of washing liquid. The function of the spray tank water inlet valve 5 is to control the on-off of the pipeline from the spray pump 7 to the spray tank 10.

2. The working steps and content of each cleaning stage are introduced:

1. cleaning the first stage:

the intermediate tank 9 (Sub-tank) is filled. Before cleaning starts, a general water inlet valve 1, an intermediate water tank drain valve 2, an intermediate water tank cleaning water valve 3, a lotion bottle water outlet valve 4 and a spray tank water inlet valve 5 are opened, a spray tank 10 (closed by a Nozzle), a cleaning liquid recovery valve 6 is closed, and a cleaning liquid recovery pump 2 is closed;

wherein, the main water inlet valve 1 and the middle water tank drain valve 2 are communicated with the atmosphere after being opened.

As shown in FIG. 2, the shower pump 7 pumps the wash liquid from the wash liquid bottle 16 (bottle), gradually filling the Sub-tank to the position of the wash liquid bottle high level Sensor 13 (S3 Sensor).

When the liquid level in the Bottle reaches the position of the low liquid level Sensor 12 (Sensor 2), the spray pump 1 stops sucking liquid, and the Bottle is filled continuously after the liquid is replenished.

The flow direction of the filling process washing liquid is as follows:

2. And (3) cleaning a second stage:

as shown in fig. 3, after filling is finished, the main water inlet valve 1, the middle water tank drain valve 2, the middle water tank cleaning water valve 3 and the spray tank water inlet valve 5 are opened; the lotion bottle outlet valve 4 and the spray tank 10 (Nozzle) are closed; the cleaning liquid recovery valve 6 is closed and the cleaning liquid recovery pump 2 is closed.

Wash cycle path:

the water tank 9, the spray pump 7, the throttle 15, the lotion bottle outlet valve 4, the middle water tank cleaning water valve 3 and the middle water tank 9.

Mainly cleaning the inner pipeline, the middle water tank 9, the valve, the spray pump 7 and the throttle 15. The second stage single wash was completed for about 3 minutes.

3. And (3) cleaning a third stage:

the shower tank 10 is mainly cleaned.

After the second phase is completed, the pipeline is emptied of washing liquid. At the end of the second stage of cleaning, most of the cleaning liquid is concentrated in the intermediate water tank 9, and a small amount of the cleaning liquid is in a pipeline between the total water inlet valve 1 and the intermediate water tank cleaning water valve 3, at the moment, the spray pump 7 is closed, and the spray tank 10 (Nozzle) is opened; the general water inlet valve 1, the middle water tank drain valve 2, the middle water tank cleaning water valve 3, the lotion bottle water outlet valve 4 and the spray tank water inlet valve 5 are all opened, and the cleaning liquid recovery valve 6 and the cleaning liquid recovery pump 2 are closed.

As shown in fig. 4, the wash liquid starts to flow downward by gravity, is discharged from the Head through the shower tank 10 (nozle), and is washed while flowing through the shower tank 10 (nozle).

The flow direction of the washing liquid in the emptying process is as follows:

intermediate Tank 9→intermediate Tank outlet valve 3→spray Tank 10 (Nozzle) →water collection Tank 17 (Tank);

spray pump 7 → restrictor 15 → wash bottle outlet valve 4 → spray Tank 10 (Nozzle) → water collection Tank 17 (Tank).

4. And a fourth cleaning stage:

the washing liquid of the water collection Tank 17 (Tank) is pumped into the washing liquid bottle 16 (Tank) again, the washing liquid is reused, and at the moment, the spraying Tank 10 (Nozzle) is required to be closed, the washing liquid recovery valve 6, the total water inlet valve 1 and the washing liquid recovery pump 8 are required to be opened; as shown in fig. 5.

The wash solution now flows through the path:

the water collection Tank 17 (Tank) →the cleaning liquid recovery valve 6→the cleaning liquid recovery pump 8→the cleaning liquid bottle 16 (bottle).

When the liquid level of the Bottle is lower than the low liquid level Sensor 12 (Sensor S2), the fourth stage is started to supply liquid to the Bottle, and when the liquid level reaches the high liquid level Sensor 11 (Sensor S1), the liquid supply to the cleaning liquid recovery pump 8 is stopped, and the cleaning liquid recovery valve 6 is closed.

The bottom of the water collection Tank 17 (Tank) for collecting the washing liquid at the lowest part is made into a bevel shape, and the liquid outlet is arranged at the lowest part of the bottom surface, so that more washing liquid can be collected, and the utilization rate of the washing liquid is improved.

5. And a fifth cleaning stage:

and repeatedly cleaning the first bottle of the cleaning solution from the first stage to the third stage for 16 times, cleaning the fourth stage for 2 times, replacing the cleaning solution, and cleaning the first bottle of the cleaning solution from the first stage to the third stage for 8 times, wherein the cleaning is performed once for the fourth stage.

3. The utility model has the effect of improving the cleaning efficiency:

the five stages of the whole cleaning process, namely the second stage (cleaning the pipeline) and the fourth stage (fluid supplementing) are two stages which are not mutually interfered, and can be simultaneously carried out. So that the device can be continuously cleaned. The personnel need 1 time to trade the liquid. The washing liquid bottle can be replaced for 10 minutes each time, and 10 minutes can be saved each time. The personnel only need to calculate the time, and the cleaning of the whole Head can be finished by replacing the washing liquid once in the middle.

3. And (3) controlling the cleaning liquid:

the present utility model requires only one intermediate exchange of washing liquid and the whole washing process can draw back the washing liquid in the water collection Tank 17 (Tank) to the washing liquid bottle 16 (Tank) in the fourth washing stage.

The first washing liquid can be used for the second washing liquid which is washed in the previous time, and the effect is the same. So that the whole process can reach the previous cleaning level only by 400cc of new washing liquid, and 800cc of washing liquid can be saved each time.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the utility model are adopted, all within the scope of the utility model.

Claims

1. The utility model provides a full-automatic inkjet printing shower nozzle cleaning system, includes lotion bottle (16), intermediate water tank (9) and spray tank (10), its characterized in that: a water collecting tank (17) is arranged below the bottom of the spraying tank (10), and the spraying tank (10) is communicated with the water collecting tank (17) through a drain pipe; the water collection tank (17) is connected with the washing liquid bottle (16) through a washing liquid recovery pipeline.

2. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: a spray pump (7) is arranged on a pipeline of the washing liquid bottle (16) leading to the spray tank (10).

3. The fully automatic inkjet printing head cleaning system according to claim 2 wherein: a lotion bottle water outlet valve (4) is arranged on a pipeline between the lotion bottle (16) and the spray pump (7); the pipeline between the spray pumps (7) of the lotion bottle water outlet valve (4) is divided into two branch pipes, one branch pipe is connected to the middle water tank (9), and the other branch pipe is connected to the spray tank (10).

4. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: a cleaning liquid recovery pump (8) is arranged on the cleaning liquid recovery pipeline.

5. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: a cleaning liquid recovery valve (6) is arranged on the cleaning liquid recovery pipeline.

6. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: the washing liquid bottle (16) is provided with a washing liquid bottle high-liquid-level sensor (11) and a washing liquid bottle low-liquid-level sensor (12).

7. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: the middle water tank (9) is provided with a middle water tank high liquid level sensor (13) and a middle water tank low liquid level sensor (14).

8. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: and a total water inlet valve (1) is arranged on a water inlet pipeline of the lotion bottle (16).

9. The fully automatic inkjet printing head cleaning system according to claim 1 wherein: a drain valve (2) of the middle water tank is arranged on a drain pipeline of the middle water tank (9); and a cleaning water valve (3) of the intermediate water tank is arranged on a pipeline which is communicated with the spray tank (10) through the intermediate water tank (9).

10. The fully automatic inkjet printing head cleaning system according to claim 2 wherein: a throttle (15) is arranged on a pipeline connected between the spray pump (7) and the spray tank (10); a spray tank water inlet valve (5) is arranged on a pipeline connected between the throttle (15) and the spray tank (10).