WO2015032128A1

WO2015032128A1 - Flashing inkjet printing control method and device

Info

Publication number: WO2015032128A1
Application number: PCT/CN2013/086748
Authority: WO
Inventors: 沈宏; 崔铁; 王生博; 刘志红
Original assignee: 北大方正集团有限公司; 北京大学; 北京北大方正电子有限公司
Priority date: 2013-09-09
Filing date: 2013-11-08
Publication date: 2015-03-12
Also published as: EP3045315A1; CN104417066A; EP3045315A4

Abstract

A flashing inkjet printing control method and device. The method comprises: determining whether to conduct flashing inkjet printing during a process of inkjet printing of inkjet-printed objects with a spacing therebetween, the flashing inkjet printing referring to instant inkjet printing (step 101); and when flashing inkjet printing is determined to be conducted, using nozzles, at least including those on a printhead that are not used for inkjet printing of the inkjet-printed objects, to conduct inkjet printing within the spacing between the adjacent inkjet-printed objects according to preset flashing inkjet printing parameters (step 102). The device comprises: a determining module (31) used for determining whether to conduct flashing inkjet printing during a process of inkjet printing of inkjet-printed objects with a spacing therebetween, the flashing inkjet printing referring to instant inkjet printing; and a flashing inkjet printing module used for, when flashing inkjet printing is determined to be conducted, using nozzles, at least including those on a printhead that are not used for inkjet printing of the inkjet-printed objects, to conduct inkjet printing within the spacing between the adjacent inkjet-printed objects according to preset flashing inkjet printing parameters. By adopting the method and device, the nozzles unused can effectively be kept wet to achieve the purpose of protecting the printhead.

Description

Flash control method and equipment

Technical field

The invention relates to digital printing technology, in particular to a flashing control method and device. BACKGROUND OF THE INVENTION Digital jet printing technology is a non-contact printing technology developed in recent years, which directly processes, transmits, and prints image data. Compared with the traditional printing method, digital printing technology eliminates the process of plate making, short printing cycle and high efficiency, especially for variable data, including variable images, printing tasks with high printing complexity, and simpler. Efficient advantages. Moreover, in recent years, thanks to the advantages of digital printing technology, the printing shield has not only been limited to paper and film, but also gradually transitioned to ceramics. Digital printing technology has entered the ceramic industry. The image is highly variable in real-time flexibility, and the speed of production is increased. The production efficiency is improved, the cost is reduced, and the printed tile image is diversified, which is favored by the majority of users.

However, due to the dry air in the ceramic printing environment, the dust is large, which is quite bad for the nozzle, and the nozzle itself is a high-value component. The production of each batch of ceramics is basically fixed in size and the production cycle is long. If some nozzles of the nozzle are not used for a long time, ^艮 may cause the plugging and it is not easy to repair, resulting in the loss of the nozzle.

The description of any prior art in this specification should not be construed as an admission or implied.

Common knowledge in the field, the content of the invention

The invention provides a flashing spray control method and device for effectively maintaining the wetness of unused nozzles, thereby achieving the purpose of protecting the nozzle.

The first aspect provides a flash spray control method, including:

M ^目^ U' Division has the printing of the spacing of the prints, indeed ^! Whether to perform flashing, the flashing is instantaneous printing;

When it is determined that the flashing is performed, according to the preset flashing spray ^^ at least ^ t head on ^ M ^ In the case of the print, the print is printed within the space between the print marks.

The second aspect provides a flashing control device, including:

a determining module, configured to determine whether to perform flashing in a process of printing a printing object having a spacing between adjacent ones, wherein the flashing is instantaneous printing;

a flashing spray module, configured to follow a preset flashing spray parameter when the determining is determined to perform flashing,

^^ At least the ^f head Jl^^ is printed on the ^ between the adjacent print objects.

The flashing spray control method and device provided by the invention determine whether to perform flashing in the process of printing a printing object having a spacing between adjacent ones, and when determining to perform flashing, according to a preset flashing spray ^ ! :, ^ At least the head J ^ ^ is printed on the inside of the printed film, and is printed in the space between adjacent printing objects. On the one hand, the flashing is the spacing between the printed objects. The inside process does not affect the normal printing process and the printing quality of the printing object, and on the other hand, by using a nozzle including at least a nozzle on the head that is not used for printing the printing object, Printing between the gaps can effectively maintain the wetness of the unused nozzles, thereby achieving the purpose of protecting the nozzles. DRAWINGS

FIG. 1 is a flowchart of a flashing control method according to an embodiment of the present invention;

2 is a schematic view of each of the tiles in the process of printing a tile according to an embodiment of the present invention;

3 is a schematic structural diagram of a flashing control device according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another flashing control device according to an embodiment of the present invention. detailed description

Various exemplary embodiments of the present invention will now be described in detail with reference to the drawings. It should be noted that the relative arrangement of the components and steps, numerical expressions and numerical values set forth in the embodiments are not intended to limit the scope of the invention unless otherwise specified.

In the meantime, it should be understood that the dimensions of the various parts shown in the drawings are not drawn in the actual scale relationship for the convenience of the description.

The following description of at least one exemplary embodiment is merely illustrative and is in no way Limitations on the invention and its application or use.

Techniques, methods and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, and the techniques, methods, and apparatus should be considered as part of the authorization specification, where appropriate. In all of the examples shown and discussed herein, any specific values are intended to be illustrative only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. FIG. 1 is a flowchart of a flashing control method according to an embodiment of the present invention. The method is performed by a flash control device that can be hardware or software integrated into a conventional digital printing device to control the printing process. As shown in FIG. 1, the method includes:

101, ^ There is a gap between the prints in the print, in the print, whether or not to do the flash spray, the flash spray refers to the instant print.

102. When it is determined that the flashing is performed, according to the flashing of the balance, at least the ^^ head is mounted on the head of the printed mark, and the distance between the printing portions of the head is printed.

The method provided by the embodiment is particularly suitable for printing a printing object having a spacing between adjacent ones, and only a part of the nozzles on the nozzle are used for printing a printing object, for example, a printing process for ceramics. . In the present embodiment, it is necessary to print a graphic on a printing object, so that an object on which a graphic is to be printed is referred to as a printing target. Alternatively, the printing object of the embodiment may be a ceramic embryo (hereinafter referred to simply as ceramic), but is not limited thereto.

Specifically, in view of the fact that the nozzle does not print for a long time in a dry environment, it is likely to cause a gag and is not easy to repair, thereby causing a problem of nozzle loss. This embodiment proposes to print on the nozzle of the printing object. In order to ensure the wetness of the unused nozzles, the purpose of protecting the nozzles is achieved.

Among them, in the process of printing on the printing object, how to determine whether to perform flashing? This can be determined according to the actual production environment and production cycle, as well as the size and type of the printed object, etc., to determine the appropriate flash spray. In order to better wet the nozzles that are not used, the operator can set a predetermined number of printing objects to perform a flashing. The specified number of values is not limited, for example, it can be 5, 7 , 10, etc.

Based on the above, an optional implementation of step 101 includes: determining whether the current distance from the last flashing operation has been separated by a specified number of printing objects; if yes, determining to perform flashing; if not, determining not to flash spray. In addition, the flashing control method provided by the embodiment is performed within the interval between adjacent printing objects, so that the normal printing process is not affected, and the printing quality of the printing object is not affected, but It is ensured that the flashing can be carried out within the interval between adjacent printing objects, and it is necessary to preset a suitable flashing spray. The flashing finger can ensure that the flashing is performed within the interval between adjacent printing objects. Use ^:.

Specifically, the flashing parameters can be set and stored before the printing is started, and after the printing is started, the stored flashing parameters are used to perform the flashing at an appropriate timing. For example, the operator can set the flash spray and its value according to the actual production environment and the production cycle, as well as the size and type of the printed object, which is not limited in this embodiment.

Optionally, the flashing spray may include a flashing delay, a flashing height, a flashing level, etc., wherein the flashing delay is used to indicate a time interval between the completion of printing of the printing object and the start of the flashing. In layman's terms, it is the time since the printing object has finished printing normally. The flash height is used to indicate the height of the content that needs to be flashed, that is, the number of lines that need to be printed by flash. The flash spray level is used to indicate the amount of ink droplets needed to perform a flash spray. In this description, it is necessary to set the sum of the flashing delay and the flashing height to be less than or equal to the spacing between adjacent printing objects, so as to ensure that the flashing is performed within the interval between adjacent printing objects.

Further, the flash jet may also include a flashing frequency and a flashing resolution. The flash frequency is the actual operating frequency of the nozzle. The flash resolution is the actual resolution of the printhead. Since the flashing process is performed during the normal printing process of the printing object, the flashing frequency and the flashing resolution are the same as the frequency and resolution of the printing head when printing the printing object, respectively. Based on this, these two parameters can be set independently.

Based on the flashing parameters provided above, an optional implementation of step 102 includes: after determining that the flashing is performed, after the printing of the current printing object is completed, the time of delaying the flashing is indicated The amount of ink droplets indicated by the flashing gray level, the printing of the height indicated by the flashing height is performed, and when the height indicated by the flashing height is printed, the printing is stopped, and the next printing object is to be printed. To

Further, the nozzle can be printed on the nozzle of the nozzle, so that the object can be ii ij wet ^ ^ ^, and JL ^ is easy to implement.

It can be seen from the above that the flashing control method provided in this embodiment determines whether to perform flashing in the process of printing a printing object having a spacing between adjacent ones, and when determining to perform flashing, according to The preset flashing light ^t, ^ at least the head of the ^f head is printed on the nozzles of the printing and printing, and the printing is performed within the interval between adjacent printing objects, on the one hand, the flashing It is carried out within the spacing between the printing objects without affecting the normal printing process, and does not affect the printing quality of the printing object. On the other hand, by using at least the nozzle, it is not used for the printing object. The nozzles for the nozzles to be printed are printed at a distance between the printing targets, so that the wetness of the unused nozzles can be effectively maintained, thereby achieving the purpose of protecting the nozzles.

The technical solution of the present invention will be further described in detail below by taking the printing object in the embodiment of the present invention as a ceramic tile as an example. For the problem of spray loss, it is necessary to set the flash ¹ ^ 3⁄4:. Since the flash is sprayed in the production ^^, the flashing frequency, that is, the actual working frequency of the nozzle, is consistent with the frequency used in the printing production; the flashing resolution is also consistent with the resolution used in actual production. . Therefore, the two parameters of flash frequency and resolution can be set separately. The following highlights the settings of other flashing parameters.

In other words, the ceramic production line continuously transports a certain size (ie, length X width) of the tile to the underside of the printing system through the conveyor belt, and the ceramic printing device prints the graphic on the tile, and the tile continues on the conveyor belt. The process is processed until it is fired into a finished product. Generally speaking, the width of the ceramic printing device is DeviceWidth, and the width of the effective graphic is less than or equal to DeviceWidth. From the transmission of the tile, there is a certain spacing between adjacent tiles. Because of the randomness of the tile placement, the value of m is not fixed. Flashing needs to be done within this spacing m. Based on this, you can set the flash enable (enable) to indicate whether to allow the flash to be activated; set the flash interval n to indicate that every n tiles are flashed once; set the flash delay (delay), After indicating that the tile is finished printing, how long is the delay of flashing; setting the height of the flash to indicate the height of the content to be printed, that is, the number of lines to be printed; setting the flashing ash JL level (level), used to indicate the amount of ink droplets required for flashing. It is stated here that the sum of the flashing delay and the flashing height cannot exceed the spacing m between adjacent tiles, which would otherwise affect the amount of tile shield that is normally produced.

After the above parameters are set, the flashing can be performed in a complete process of printing production by the method provided by the present invention. Specifically, in the printing process, after each tile arrives, the ceramic printing device prints the same size image of the tile on the tile, and then determines whether the flash spray is enabled. To determine whether the flash spray function is allowed to be enabled, if flashing is allowed, it is judged whether the interval n of the tile is satisfied. When the ^ ^ is satisfied, the time of the flashing delay indication is delayed after the image is printed. The height of the flash mark is indicated. The gray level of the print is the value of the flash gradation. The width of the print is the device width, that is, all the nozzles of the device are printed. After the content of the height indicated by the flashing height is printed, stop printing and wait for the next tile to arrive.

If the interval K of the n tiles is not satisfied, no printing is performed. Similarly, if the flash blow enable ( enbale ) is invalid, the flash spray function is not allowed. During the use of ceramic production, the operator can determine whether to activate the flash spray and set the parameters of the flash spray according to the actual environment and production cycle, as well as the size and type of the ceramic.

Further, since the tiles are carried on the conveyor belt and the exposed belts are between the tiles, the ink droplets of the flash jets are all on the conveyor belt between the tiles, so it is necessary to clean the ink droplets on the conveyor belt after the completion of the flashing, that is, The ink droplets formed on the conveyor belt are removed by the printing of the inter-printing pair to ensure that the tiles are not affected.

Taking the use of the DeviceWidth: 350mm wide color ceramic digital printing equipment based on the XAAR1001 nozzle as an example in the production of ceramics, the value of each method in the technical solution of the present invention is exemplified, and the specific position pointed by each parameter can be seen in the figure. 2 is shown.

Among them, the tile size is length (length): 600mmx width (width): 300mm, the effective graphic image to be printed is 600mm. According to the actual usage of the user, if the spacing m between the tiles is generally 100 mm or more, the flashing interval n can be set to 5, the delay of the flashing is set to 12 mm, and the height of the flashing is set to 10 mm. The flash level can be set to 2.

In the production process, after the scanning of the ceramic tile, the ceramic printing equipment firstly prints a length of 600mm and a width of 300mm. After the 600mm graphic printing is completed, on the one hand, it is judged whether or not the flashing is allowed to be performed; on the other hand, the printed ceramic tiles are counted, and each time five tiles are separated, one flashing is performed, and in other cases, the flashing is not performed. If the flashing condition is met, a delay of 12 mm is first performed, followed by a 10 mm flashing, the flashing gray level is all 2, and the flashing width is 350 mm, that is, the width of the i-feed. The gray level of the nozzle is printed, depending on the data sent to the nozzle. When the flashing is completed, the return continues to wait for the next tile to come, and the ink drops that are flashed on the conveyor are removed. It is noted that the method provided by the above embodiments of the present invention may be completed by a flashing control device, which may be composed of a software part and a hardware part, and the software part may be run on a PC for completing related The setting of the flashing parameter and the control of the flashing; the hardware part is the main implementation part of the flashing control method, specifically for completing the printing and flashing of the effective graphic, for example, including buffering and transmitting the graphic content , the filling of flashing content, the statistics of flashing delay, and the control of the nozzle parts, and so on. The various parts are closely matched to effectively implement the flash jet control method of the present invention. Wherein, the hardware part can be implemented by a ceramic printing device, but is not limited thereto.

FIG. 3 is a schematic structural diagram of a flashing control device according to an embodiment of the present invention. As shown in FIG. 3, the device includes: a determination module 31 and a flash spray module 32.

The determining module 31 is configured to determine whether to perform flashing in the process of printing a printing object having a spacing between adjacent ones, wherein the flashing is instantaneous printing.

The flashing module 32 is connected to the determining module 31, and is configured to, when the determining module 31 determines to perform the flashing, according to the preset flashing, ^ at least ^^^^^^^ Printing is performed within the spacing between adjacent print objects.

In an optional implementation manner, the determining module 31 is specifically configured to determine whether the current flashing operation has been separated by a specified number of flashing objects, and if the determination result is yes, determine to perform flashing; if not, determine Do not flash.

Optionally, the flashing parameters may include, but are not limited to, a flash spray delay, a flash spray height, and a flash spray level. Wherein the flashing delay is used to indicate a time interval from completion of printing to the start of flashing of the printing object, the flashing height is used to indicate a height of content requiring flashing, the flashing The gray level is used to indicate the amount of ink droplets required for performing the flashing; wherein, the sum of the flashing delay and the flashing height is less than or equal to the spacing between the adjacent printing objects.

Based on the flashing t above, the flashing ink 32*^ is used for the printing of the printing object, the time interval of the flashing delay indication, and the at least the nozzle is printed on the printing object. The nozzle inside the nozzle starts to print at the height indicated by the flashing height according to the amount of ink droplet indicated by the flashing gray level, and when the height of the flashing height is indicated, the printing is stopped. Printing, will be the next object to be printed

Further explanation, flash>«3⁄4^32 in addition to the completion of the flash spray> ^ Bu, you can also print on the nozzle ^ "^ ¹ ^ ^ on the line is W" printed.

Optionally, the print object may be a tile carried by a conveyor belt. Based on this, as shown in Figure 4 The flashing control device further includes: a clearing module 33.

The clearing module 33 is configured to, after the flashing module 32 completes the flashing, clean the ink droplets formed on the conveyor by printing the flashing module 32 at a distance between the printing pairs.

In a specific implementation, the clearing module 33 can be attached to the ^3⁄4 platform of the conveyor, but is not limited thereto.

The function modules of the flashing control device provided in this embodiment can be used to execute the process of the method embodiment shown in FIG. 1. The specific working principle is not described here. For details, refer to the process of the method embodiment.

The flashing control device provided in this embodiment determines whether to perform flashing in the process of printing a printing object having a spacing between adjacent ones, and when determining to perform flashing, according to preset flashing parameters, At least the head of the stamp is printed within the spacing between adjacent print objects. On the one hand, the flash spray is performed within the spacing between the print objects without affecting normal. The printing process does not affect the printing quality of the printing object, and the other nozzle prints in the space between the printing objects, which can effectively maintain the wetness of the unused nozzle, thereby achieving the protection of the nozzle. purpose.

Also provided is one or more computer readable medium shields having computer executable instructions that, when executed by a computer, perform a flash blast control method, the method comprising: squirting a gap between adjacent pairs During the printing process, it is determined whether to perform flashing, and the flashing refers to instantaneous printing; when it is determined that the flashing is performed, according to the preset flashing parameters, the use of at least the nozzle is not used for the pair. The nozzles, which are the nozzles on which the printing object is to be printed, are printed at a distance between adjacent printing objects.

Also provided is a computer comprising one or more computer readable shields with computer executable instructions that, when executed by a computer, perform the flash spray control method described above.

Exemplary operating environment

A computer or computing device, such as described herein, has hardware, including one or more processors or processing units, system memory, and some form of computer readable medium. By way of example and not limitation, computer-readable shields include computer storage media shields and communication media shields. Computer storage media includes volatile and nonvolatile, removable and non-removable shields implemented in any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Communication shield

Instruction, number According to structure, program modules or other data, and include any information transfer shield. Combinations of any of the above are also included within the scope of computer readable shields.

The computer can be used in one or more remote computers, such as logical connections of remote computers operating in a network environment. Although described in connection with an exemplary computing system environment, embodiments of the invention are applicable to numerous other general purpose or special purpose computing system environments or configurations. The computing system environment is not intended to limit the scope of use or functionality of any aspect of the invention. Moreover, the computer environment should not be interpreted as having any dependency or requirement relating to any one or combination of components illustrated in the exemplary operating environment. Examples of well-known computing systems, environments, and/or configurations suitable for use in aspects of the present invention include, but are not limited to: personal computers, server computers, handheld or laptop devices, multiprocessor systems, microprocessor based System, set top box, programmable consumer electronics, mobile phone, network PC, small computer, mainframe computer, distributed computing environment including any of the above systems or devices, and the like.

The various embodiments of the invention may be described below in the context of a computer-executable instruction, such as a program module, by one or more computers or other circuitry. Computer executable instructions can be organized as software into one or more computer executable components or modules. In general, program modules include, but are not limited to, routines, programs, objects, components, and data structures that perform particular tasks or implement particular abstract data types. Aspects of the invention may be implemented in any number of such components or modules and their organization. For example, aspects of the invention are not limited to the specific computer-executable instructions or specific components or modules illustrated in the figures and described herein. Other embodiments of the invention may include different computer-executable instructions or components having more or less functionality than those illustrated and described herein. Aspects of the invention may also be implemented in a distributed computing environment where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, the program ^ can be located in both the memory and the memory.

One of ordinary skill in the art will appreciate that all or a portion of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage shield. When the program is executed, the steps including the foregoing method embodiments are performed; and the foregoing storage medium shield includes: a ROM, a RAM, a magnetic disk or an optical disk, and the like, which can store various program codes.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, and not The invention is described in detail with reference to the foregoing embodiments, and those skilled in the art should understand that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be Equivalent replacement; and these modifications or substitutions do not detract from the scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

1. A flash spray control method, characterized by including:

If there is a spacing between printing and printing, check whether to perform flash printing. The flash printing refers to instantaneous printing;

When it is determined to carry out flash printing, according to the preset flash printing method, at least cover the head and print within the distance between the printing pairs and the distance between the printing pairs.

2. The method according to claim 1, characterized in that the determining whether to perform flash spraying includes:

Determine whether the current distance from the last flash printing operation has been separated by a specified number of printing objects; if so, it is determined to perform flash printing; if not, it is determined not to perform flash printing.

3. The method according to claim 1, characterized in that, the flash spray parameters include: flash spray delay, flash spray height and flash spray gray level; wherein, the flash spray delay is used to indicate the self-reflection of the flash spray. The time interval between the completion of printing on the printing object and the start of flash printing. The flash printing height is used to indicate the height of the content that requires flash printing. The flash printing gray level is used to indicate the amount of ink droplets required for flash printing. ; Wherein, the sum of the flash spray delay and the flash spray height is less than or equal to the distance between the adjacent spray printing objects.

4. The method according to claim 3, characterized in that, the flash printing parameters according to the preset include at least the printing on the printing head, including the printing on the printing head. The mesh printing pairs are printed within the spacing between ^, ^ -.

After the current printing object is finished printing, delay the time interval of the flash spray delay indication, use at least the print head on the print head, including the print to print, according to the flash spray grayscale According to the amount of ink droplets indicated by the level, printing is performed at the height indicated by the flash jet height. When the height indicated by the flash jet height is printed, printing is stopped and the next printing object is awaited.

5. The method according to any one of claims 1 to 4, characterized in that the printing object is a ceramic tile carried by a conveyor belt.

6. The method according to claim 5, characterized in that, the flash printing parameters according to the presets include at least the printing on the head and the printing on the printing. The purpose of printing is to print within the spacing between pairs, and also includes:

The ink droplets formed on the conveyor belt during printing within the distance between adjacent printing objects are removed.

7. A flash spray control equipment, characterized by including: A determination module, used to determine whether to perform flash printing during the process of printing adjacent printing objects with a gap between them. The flash printing refers to instantaneous printing;

A flash spray module is used to perform flash spray according to the preset flash spray parameters when the determination is made.

^^At least include ^f header Jl^^Including ^print-to-print ^, print within the spacing between adjacent printing objects.

8. The device according to claim 7, wherein the determination module is specifically used to determine whether the current distance from the last flash spray operation has been separated by a specified number of flash spray objects. If the determination result is yes, then determine to proceed. Flash spray; if not, determine not to flash spray.

9. The device according to claim 7, characterized in that, the flash spray parameters include: flash spray delay, flash spray height and flash spray gray level; wherein, the flash spray delay is used to indicate that the The time interval between the completion of printing on the printing object and the start of flash printing. The flash printing height is used to indicate the height of the content that requires flash printing. The flash printing gray level is used to indicate the amount of ink droplets required for flash printing. ; Wherein, the sum of the flash spray delay and the flash spray height is less than or equal to the distance between the adjacent spray printing objects.

10. The device according to claim 9, wherein the flash printing module is specifically used to delay the flash printing delay indication time interval after the current printing object completes printing, which at least includes the The nozzle starts printing at the height indicated by the flash jet height according to the amount of ink droplets indicated by the flash jet level. When the height indicated by the flash jet height is Print ¾^, stop printing, and wait for the arrival of the next printing object.

11. According to the equipment described in any one of 7-10, the printing object is a ceramic tile carried by a conveyor belt.

12. The device according to claim 11, further comprising:

A clearing module is used to clear the ink droplets formed on the conveyor belt within the spacing of the flash inkjet printing pairs.