WO2019100509A1

WO2019100509A1 - Spray head control method

Info

Publication number: WO2019100509A1
Application number: PCT/CN2017/118076
Authority: WO
Inventors: 韩业实; 瞿浩正; 宋宇
Original assignee: 深圳华云数码有限公司
Priority date: 2017-11-27
Filing date: 2017-12-22
Publication date: 2019-05-31
Also published as: CN108016031A; CN108016031B

Abstract

A spray head control method, comprising: joining a first spray head, a second spray head, a third spray head and a fourth spray head, wherein the first spray head and the second spray head are transversely joined, the third spray head and the fourth spray head are transversely joined, the first spray head and the third spray head are vertically joined, and the second spray head and the fourth spray head are vertically joined; proportioning and completing data printing tasks by means of the four spray heads according to four groups of timing sequences, wherein a first nozzle and a third nozzle of the first spray head print first data at a first moment, a fifth nozzle and a seventh nozzle of the second spray head print third data at a second moment, a second nozzle and a fourth nozzle of the third spray head print second data at a third moment, and a sixth nozzle and an eighth nozzle of the fourth spray head print fourth data at a fourth moment. By means of rationally controlling spray heads and nozzles, the full quantity of nozzles of the spray heads may be used, and printing speed and printing quality are not reduced due to a spray head alarm; meanwhile, the control method may guarantee that the spray head stops in case of an overheating alarm, and may guarantee that the movement of a medium is not interrupted, thereby improving the printing efficiency and usage ratio of a printing device.

Description

Nozzle regulation method

Technical field

The present application relates to the field of printing technologies, and in particular, to a method for regulating a nozzle.

Background technique

In the prior art, in the operation and use of industrial inkjet printing apparatuses, the application of unconventional printing has been increasing, such as production of liquid crystal screens, production of thin film circuits. As mass production methods of graphene pastes have become more mature, the production of graphene films (non-monolayer films) by printing has also become a reality.

Graphene films have many advantages, such as good thermal conductivity and high electrical conductivity. An important prerequisite for these advantages is that the thickness of the film is thin. Industrial nozzles enable high-precision, high-speed, low-dose liquid jets (ink-like solutions that meet nozzle requirements). The graphene slurry is configured into an ink-like solution, and the high-speed production of the graphene film can be realized by spraying the entire surface in the effective region by the nozzle.

However, in the conventional printing apparatus, the nozzles of the nozzles for a long time do not occupy more than 35%. When industrial nozzles are used on coating equipment, the proportion of nozzle operation will exceed 50% for a long time. This causes the internal IC temperature of some of the nozzles to rise rapidly, causing the nozzle to alert and eventually shut down the printing device, causing a large amount of time lost.

Therefore, in the prior art, the method for treating the nozzle overheating is generally that the sensor detects that the inside of the nozzle reaches a preset temperature threshold, and will decelerate printing or stop printing to finally shut down the device, whether it is to stop printing or shut down. Equipment can be wasted on time or on the substrate.

Application content

In order to solve the prior art, the method for treating the nozzle overheating is generally that the sensor detects that the inside of the nozzle reaches a preset temperature threshold, and will decelerate printing or stop printing to finally shut down the device, whether to stop printing or shut down the device. There is a technical defect that wastes time or substrate. This application proposes a nozzle control method, which includes:

The first nozzle, the second nozzle, the third nozzle, and the fourth nozzle are spliced, wherein the first nozzle and the second nozzle are horizontally spliced, and the third nozzle and the fourth nozzle are horizontally spliced. The first nozzle and the third nozzle are longitudinally spliced, and the second nozzle and the fourth nozzle are longitudinally spliced;

The data print task is completed by the four nozzles according to the four sets of timings, wherein the first data is printed by the first nozzle and the third nozzle of the first nozzle at the first moment, and the second is The fifth nozzle and the seventh nozzle of the nozzle print third data, and at a third time, the second data is printed by the second nozzle and the fourth nozzle of the third nozzle, and at the fourth moment, the sixth nozzle is the sixth The nozzle and the eighth nozzle print the fourth data.

Optionally, if one of the four nozzles is overheated, the current injection is used as the last injection of the overheating nozzle.

Optionally, if one of the four nozzles is overheated, the number of the printed frames is counted, and the minimum black block unit is called for the injection, wherein the minimum black block unit is from the four nozzles. The spacing is determined.

Optionally, if one of the four nozzles is overheated, the four nozzles are grouped, wherein the first nozzle and the second nozzle are a first group, the first nozzle The fourth head is the second group, the third head and the second head are the third group, and the third head and the fourth head are the fourth group.

Optionally, if one of the four nozzles is overheated, the required nozzle group is determined according to the data printing task.

Optionally, if one of the four nozzles is overheated, the blank data length that needs to be increased in the initial position in the print data is determined according to the selected nozzle group.

Optionally, if the fourth group performs the data print task, the required blank data length is the relative distance between the edge of the third nozzle and the fourth nozzle;

If the second group performs the data print task, the required blank data length is the relative distance between the first nozzle and the fourth nozzle.

Optionally, if one of the four nozzles is overheated, the nozzle group is in turn called in a preset order.

Optionally, if one of the four nozzles is overheated, the other nozzle that is longitudinally spliced with the overheating nozzle bears the printing task in the longitudinal section, and at the same time, the other two longitudinally spliced nozzles are spliced according to the splicing The way to complete the print task in the vertical interval.

Optionally, if the nozzle is overheated, the nozzle group is in turn called in a preset order.

By implementing the nozzle control method of the present application, by properly regulating the nozzle and the nozzle, the number of nozzles of the nozzle can be fully utilized, and the printing speed and the printing quality are not reduced due to the alarm of the nozzle, and the scheme can ensure the nozzle Resting in the case of overheating alarms also ensures that the media movement is not interrupted, improving printing efficiency and printing device usage.

DRAWINGS

The one or more embodiments are exemplified by the accompanying drawings in the accompanying drawings, and FIG. The figures in the drawings do not constitute a scale limitation unless otherwise stated.

1 is a flow chart of a first embodiment of a method for regulating a nozzle of the present application;

2 is a schematic view showing the splicing of the nozzle in the nozzle regulating method of the present application;

Figure 3 is a nozzle arrangement diagram of the nozzle regulating method of the present application;

4 is a schematic diagram of a minimum black block unit in the nozzle regulating method of the present application;

5 is a schematic diagram showing the length of blank data in the nozzle regulating method of the present application;

6 is a schematic view showing the operation of three nozzles in the nozzle regulating method of the present application.

Specific embodiment

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

Further, the technical features involved in the various embodiments of the present application described below may be combined with each other as long as they do not constitute a conflict with each other.

1 is a flow chart of a first embodiment of a method for regulating a nozzle of the present application. A method for regulating a nozzle, the method comprising:

S1, splicing the first nozzle, the second nozzle, the third nozzle, and the fourth nozzle. The first nozzle and the second nozzle are horizontally spliced, the third nozzle and the fourth nozzle are horizontally spliced, and the first nozzle and the third nozzle are longitudinally spliced, the first The two nozzles and the fourth nozzle are longitudinally spliced;

S2, the data print task is completed by the four nozzles according to the four groups of timings. Wherein the first data is printed by the first nozzle and the third nozzle of the first nozzle at a first time, and the third data is printed by the fifth nozzle and the seventh nozzle of the second nozzle at a second time, The second data is printed by the second nozzle and the fourth nozzle of the third head at three times, and the fourth data is printed by the sixth nozzle and the eighth nozzle of the fourth head at the fourth timing.

FIG. 2 is a schematic diagram of the nozzle splicing in the nozzle control method of the present application. In this embodiment, the physical layer needs to have horizontal and vertical nozzle splicing:

PrintHead1 and PrintHead2 are horizontally stitched relationships;

PrintHead3 and PrintHead4 are also horizontally stitched.

The relationship between PrintHead3 and PrintHead1 is vertical stitching;

The relationship between PrintHead4 and PrintHead2 is also a vertical stitching relationship;

PrintHead3 and PrintHead1, which correspond to the nozzle in a straight line in the longitudinal direction;

PrintHead4 and PrintHead2, the corresponding nozzles are also in a straight line in the longitudinal direction;

The above four nozzles are arranged at equal intervals in the longitudinal direction.

It can be understood that the main purpose of the horizontal nozzle splicing is to widen the printing width, and on the other hand, it is also possible to reduce the number of nozzles that a single nozzle participates in printing, thereby preventing the nozzle from overheating.

Similarly, it can be understood that the purpose of the longitudinal nozzle splicing is to enable the nozzles of the rear row to share the printing pressure of the front nozzles.

FIG. 3 is a diagram showing a nozzle arrangement in the nozzle regulating method of the present application. The printed product is a custom-length black rectangular block. When the length of the black rectangular block shown in Figure 2 increases to a certain extent in the longitudinal direction, the continuous operation time of all the nozzles of a single nozzle is too long, which may cause the nozzle temperature to be too high.

In order to avoid the temperature of the single nozzle is too high, the whole equipment is decelerated or shut down. Taking the arrangement of Figure 3 as an example, the following working mechanism can be arranged for the nozzle operation.

FIG. 3 is a nozzle layout diagram of the nozzle control method of the present application. It can be understood that the figure is an abstracted simplified distribution diagram. In the figure, it is assumed that one nozzle has four on the same horizontal line. If the nozzle is to work, adding one nozzle in the longitudinal direction can share half the workload.

For example, if the data print task requires printing N rectangular blocks, where:

The working nozzles of the first rectangular block use the 1,3 nozzles of PrintHead1; the 5 and 7 nozzles of PrintHead2; the 2 and 4 nozzles of PrintHead3; the 6 and 8 nozzles of PrintHead4;

The second rectangular block performs nozzle replacement, using 2 and 4 nozzles of PrintHead1; 6 and 8 nozzles of PrintHead2; 1, 3 nozzles of PrintHead3; 5 and 7 nozzles of PrintHead4;

The third rectangular block nozzle is replaced by the working mode of the first rectangular block, and so on, alternately used.

The above manner is the use mode of the nozzle splicing which can be selected in this embodiment. In this coating mode, the nozzle usage rate is controlled at about 50%, and the heat generation is uniform.

Further, the nozzle splicing scheme of the embodiment is applicable not only to the four nozzle combinations but also to the combination of more than four nozzles;

Further, in the embodiment, taking six nozzles as an example, two nozzles in a longitudinal splicing relationship may be added in two longitudinal splicing relationships, thereby increasing the width of the printing, wherein the two nozzles are increased. The longitudinal splicing relationship is the same as the two sets of longitudinal splicing relationships of the above embodiments;

Further, the nozzle arrangement scheme of the present embodiment is applicable not only to a combination of four nozzles, but also to a combination of four nozzles;

Further, in this embodiment, taking six nozzles per nozzle as an example, the first, third, and fifth nozzles of the first nozzle are responsible for spraying, and the second, fourth, and sixth nozzles of the third nozzle are Responsible for spraying, which improves the injection accuracy;

Further, in this embodiment, taking six nozzles per nozzle as an example, the first, second, and third nozzles of the first nozzle are responsible for spraying, and the fourth, fifth, and sixth nozzles of the third nozzle are Responsible for spraying, thereby improving the integrity of the injection;

Further, in the embodiment, taking six nozzles per nozzle as an example, according to the required printing requirements, the first, third, and fifth nozzles of the first nozzle are responsible for the preset first period. Spraying, and the second, fourth, and sixth nozzles of the third nozzle are responsible for spraying, and in the preset second period, the first, second, and third nozzles of the first nozzle are responsible for spraying, and the third nozzle is for spraying Fourth, the fifth and sixth nozzles are responsible for the injection.

Based on the above embodiment, the present embodiment proposes a rotation rest mechanism in the case where the nozzle is overheated: on the one hand, when the temperature of one or two nozzles that are not in the same direction exceeds the set alarm threshold, the setting is set. The alarm threshold should have a certain margin, and it can continue to work for a short period of time. On the other hand, the alarm nozzle needs to be rotated and rested, then set a mechanism for the rotation of the nozzle.

In this embodiment, it is first necessary to solve the work of finishing the data printing task when the nozzle is overheated, specifically:

When the nozzle is overheated during the printing process, the data of the second half of the task is directly called. In order to achieve the seamless connection of data, it is necessary to count the number of printed frames. Once the nozzle is overheated, directly call the minimum black block unit (the spacing of the four nozzles as described in the above example) to spray, so that the task prints. A rectangle with a slightly shorter length.

FIG. 4 is a schematic diagram of a minimum black block unit in the nozzle regulating method of the present application. If one of the four nozzles is overheated, the current injection is used as the last injection of the superheating nozzle. As described in the above example, if PrintHead1 is overheated, the default frame is injected as the last frame of the PrintHead1 front nozzle. Next, the four nozzles will be sprayed in sequence, using the finishing jet data. Similarly, any one of the nozzles will be overheated by default. This injection is the last frame of the PrintHead1 front nozzle, so that the number of subsequent injection frames will be collected. So that this shot completes a slightly shorter rectangular block.

Further, if one of the four nozzles is overheated, the number of the printed frames is counted, and the minimum black block unit is called for the injection, wherein the minimum black block unit is used by the four nozzles. The spacing is determined.

Further, if the pitches of the four nozzles are different, the ejection is performed in a minimum black block unit (that is, the black block printed by the nozzle with the smallest pitch).

In the above embodiment, when the nozzle is overheated, the data printing task finishing work when the nozzle is overheated is solved. In the embodiment, after the data printing task is finished, the working state of the nozzle is switched, the specific :

FIG. 2 is a schematic diagram of the nozzle splicing in the nozzle control method of the present application. If one of the four nozzles is overheated, the four nozzles are grouped, wherein:

The first nozzle and the second nozzle are a first group;

The first nozzle and the fourth nozzle are a second group;

The third nozzle and the second nozzle are a third group;

The third nozzle and the fourth nozzle are a fourth group.

It can be understood that any one of the above four groups can independently complete the data printing task.

Further, if one of the four nozzles is overheated, the required nozzle group is determined according to the data printing task. Similarly, as described in the above example, if the first nozzle is overheated, the third group or The fourth group can independently complete the data printing task. If the third nozzle is overheated, the first group or the second group can complete the data printing task independently.

5 is a schematic diagram of blank data length in the nozzle control method of the present application. When selecting different nozzle groups to complete the data printing task, different blank data lengths are left. Specifically, if one of the four nozzles is overheated Phenomenon, the blank data length that needs to be increased in the initial position in the print data is determined according to the selected nozzle group.

Further, if the fourth group performs the data print task, the required blank data length is the relative distance between the third nozzle and the fourth nozzle;

Further, if the second group performs the data print task, the required blank data length is the relative distance between the first nozzle and the fourth nozzle.

Further, if one of the four nozzles is overheated, the nozzle group is in turn called in a preset order, that is, after a task is printed under the state switch, the 50% regular equalization mode is restored. At this time, the originally overheated nozzle can obtain a rest time of at least one second or more, and can be restored to the normal working mode, or, according to the method, the nozzle group is in turn called for spraying, and each group of nozzles will perform pulsed work. After a high-intensity work, rest for at least one second.

Based on the above embodiment, when one of the four nozzles is overheated, the working scheme of the three nozzles is adopted, as shown in FIG. 6 is a schematic diagram of the operation of the three nozzles in the nozzle regulation method of the present application. At this point, PrintHead2 and PrintHead4 are still printed in the usual way, and PrintHead3 alone bears the amount of left-hand printing tasks. The data needs to be specifically transformed for the arrangement of the three nozzles and the task allocation method.

When a single nozzle is overheated, the other nozzle in the same direction will bear the full length of the print in the next task. The two nozzles in the other direction are printed according to the original 50% data sharing method;

Further, if one of the four nozzles is overheated, the other nozzle that is longitudinally spliced with the superheating nozzle bears the printing task in the longitudinal section, and at the same time, the other two longitudinally spliced nozzles are spliced. The printing tasks in the vertical interval are completed together.

Further, if the nozzle is overheated, the nozzle group is in turn called in a preset order.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present application are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal (which may be a cell phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present application.

The embodiments of the present application have been described above with reference to the drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the scope of the present application, many forms may be made without departing from the scope of the invention as claimed.

Claims

A nozzle control method, characterized in that the method comprises:

The first nozzle, the second nozzle, the third nozzle, and the fourth nozzle are spliced, wherein the first nozzle and the second nozzle are horizontally spliced, and the third nozzle and the fourth nozzle are horizontally spliced. The first nozzle and the third nozzle are longitudinally spliced, and the second nozzle and the fourth nozzle are longitudinally spliced;

The data print task is completed by the four nozzles according to the four sets of timings, wherein the first data is printed by the first nozzle and the third nozzle of the first nozzle at the first moment, and the second is The fifth nozzle and the seventh nozzle of the nozzle print third data, and at a third time, the second data is printed by the second nozzle and the fourth nozzle of the third nozzle, and at the fourth moment, the sixth nozzle is the sixth The nozzle and the eighth nozzle print the fourth data.
The nozzle regulating method according to claim 1, wherein if one of the four nozzles is overheated, the current injection is used as the last injection of the overheating nozzle.
The nozzle regulating method according to claim 2, wherein if one of the four nozzles is overheated, the number of printing frames is counted, and the minimum black block unit is called for spraying. The minimum black block unit is determined by the spacing of the four nozzles.
The nozzle regulating method according to claim 3, wherein if one of the four nozzles is overheated, the four nozzles are grouped, wherein the first nozzle and the second nozzle The nozzle is a first group, the first nozzle and the fourth nozzle are a second group, the third nozzle and the second nozzle are a third group, and the third nozzle and the fourth nozzle are Fourth group.
The nozzle regulating method according to claim 4, wherein if one of the four nozzles is overheated, the required nozzle group is determined according to the data printing task.
The nozzle regulating method according to claim 5, wherein if one of the four heads is overheated, determining a blank data length to be increased in an initial position in the print data according to the selected head group .
The nozzle regulating method according to claim 6, wherein if the fourth group performs the data printing task, the required blank data length is the edge of the third nozzle and the fourth nozzle relative distance;

If the second group performs the data print task, the required blank data length is the relative distance between the first nozzle and the fourth nozzle.
The nozzle regulating method according to claim 7, wherein if one of the four nozzles is overheated, the nozzle group is in turn called in a preset order.
The method for regulating the nozzle according to claim 8, wherein if one of the four nozzles is overheated, the other nozzle in the longitudinal direction of the nozzle is borne by the other nozzle in the longitudinal section. The other two longitudinally spliced nozzles together perform the printing task in the longitudinal section in a splicing manner.
The nozzle regulating method according to claim 9, wherein if the nozzle is overheated, the nozzle group is in turn called in a preset order.