The control system of polychrome ink jet printing on the batch (-type) rotary printing equipment
Technical field
The utility model relates to the digital ink-jet printing technology, relates in particular to a kind of digital ink-jet printing equipment carries out the polychrome ink jet printing on batch (-type) rotary printing equipment control system.
Background technology
The digital ink-jet printing technology is a kind of mode that data are directly transmitted, handle, printed, the step of saved plate-making in the traditional printing process, drawing a design, simultaneously, the introducing of computer technology and control technology, make printing process succinctly quick, printing is flexible and changeable.Different with the relative motion mode of the body of undertaking the printing of according to image-forming block, digital ink-jet printing equipment as referred to herein is meant that image-forming block is motionless, the digital ink-jet printing equipment of body with respect to image-forming block motion and then spray printing imaging of undertaking the printing of.Because the resolution ratio of image-forming block itself and the restriction of fabric width, the modes of image-forming block staggered superposition that adopt improve resolution ratio more in this digital ink-jet printing equipment, adopt image-forming block to splice and increase printing format.Because what the digital ink-jet printing equipment adopted is the mode of printing of noncontact, in printing process, need accurately to control the image space of ink droplet, therefore, at present, the digital ink-jet printing equipment is used on full rotary printing equipment or the sheet printing equipment more, the body motion mode that promptly is applied to undertake the printing of is on the printing equipment of single movement direction, and the application on the comparatively complicated printing equipment (employed batch (-type) rotary printing equipment in as traditional printing) of the body motion mode of undertaking the printing of is then less relatively.
Fig. 1 provides the schematic diagram of image-forming block mounting means in a kind of digital ink-jet printing equipment.As shown in Figure 1, because all image-forming blocks all have the certain physical volume, therefore, in the digital ink-jet printing equipment that is spliced into main extended mode, adjacent image-forming block group can not be installed on same the straight line, has the certain physical spacing between each image-forming block group.
For example, be example with three image-forming block groups, suppose image-forming block group 1 and 3 installations point-blank, having length between image-forming block group 2 and the image-forming block group 1 is the spacing of a.Print simultaneously if control three image-forming block groups, so, as shown in Figure 2, certainly exist spacing a between the printing image of image-forming block group 1 and image-forming block group 2, therefore, can not completely present entire image.
On full rotary printing equipment, because the motion mode of the body of undertaking the printing of is single relatively, the body of undertaking the printing of always advances, and therefore, can solve this problem by the time of controlling each image-forming block group spray printing.Specifically, the direction of motion of the body of supposing to undertake the printing of is: the body of undertaking the printing of through image-forming block group 1 and 3, passes through image-forming block group 2 earlier again.In this case, control image-forming block 1 and 3 prints image simultaneously, and control image-forming assembly group 2 postpones spacing a, and when the image that has printed when imaging parts group 1 and 3 arrived image-forming block group 2, image-forming block group 2 just began to print.Adopt this mode, can guarantee the integrality of image.
For the complicated printing equipment of body motion mode of undertaking the printing of, as batch (-type) rotary printing equipment, because the body motion mode of undertaking the printing of of batch (-type) rotary printing equipment one retreats for advancing, the body of promptly undertaking the printing of not is always to advance, but has the process of a rollback.Be example with above-mentioned three image-forming block groups still, the body motion mode of undertaking the printing of is two-way, advances earlier, promptly earlier by image-forming block group 1 and 3, by image-forming block group 2, rollback is promptly first by image-forming block group 2 then again, by image-forming block group 1 and 3, finish a circulation, and so forth again.
Fig. 3 provides the undertake the printing of curve synoptic diagram of body advancement stage acceleration of batch (-type) rotary printing equipment.As shown in Figure 3, batch (-type) wheel commentaries on classics equipment quickens for earlier the body of undertaking the printing of in the one-step print process, when being added to predetermined speed, and uniform motion one segment distance, and then to the body deceleration of undertaking the printing of, for rollback is prepared.In this process, the body direction of motion of undertaking the printing of is direction of advance all the time.The distance that the body of supposing to undertake the printing of in the accelerator advances is L1, and the distance of at the uniform velocity advancing is L2 (is called jump apart from), and the distance of advancing in the moderating process is L3, and in the whole process of advancing, the distance L that the body of undertaking the printing of advances is L1+L2+L3 so.But in fact, batch (-type) rotary printing equipment only just prints in the stage at the uniform velocity, that is to say, in the distance of advancing, having only the L2 distance is effectively, and remaining distance is invalid all.Subsequently, in the distance of retraction phase meeting rollback L1+L3, do not print this moment.
When the digital ink-jet printing equipment is applied on the batch (-type) rotary printing equipment,, need only to carry out spray printing in the at the uniform velocity stage of advancement stage for the image with printing cooperates.According to the control mode of above-mentioned full rotary printing equipment, enter at the uniform velocity the stage after, image-forming block group 1 and 3 is carried out spray printing, image-forming block group 2 postpones to print after the spacing a again.Like this, can obtain as shown in Figure 4 image.Promptly in stage at the uniform velocity, the distance of the running body of undertaking the printing of is L2, and image-forming block group 1 and effective spray printing distance of 3 be L2, but effective spray printing of image-forming block group 2 is apart from being L2-a.In order to guarantee the integrality of image, the image length that can select spray printing is less than L2-a, in stage at the uniform velocity, promptly all images spray printing can be finished so.Like this, both can guarantee the integrality of image, can use again and the complete identical control mode of rotary printing equipment that still, each at the uniform velocity all has length in the stage was that the medium of a is wasted, and has also sacrificed production efficiency simultaneously.
Summary of the invention
In order to address the above problem, the utility model provides the control method and the system of polychrome ink jet printing on a kind of batch (-type) rotary printing equipment, is used to solve digital ink-jet printing equipment printing and the application of traditional batch formula printing image version appearance with image length on batch (-type) wheel commentaries on classics equipment.
In order to realize above purpose, the digital ink-jet printing equipment that the utility model provides carries out the polychrome ink jet printing on batch (-type) rotary printing equipment control system comprises a plurality of control device that each image-forming block group is controlled that are respectively applied for, each control device comprises: register file, it is used to deposit image length and the image-forming block group that this control device is controlled and the spacing between the benchmark of the page of the operation that will print, and described benchmark is the image-forming block group of undertaking the printing of and printing at first on the body direction of motion; Judging unit, it is used to judge whether the current page that will print is first page; Selector switch, it is used for selecting to use described spacing when the judgment unit judges current page is first page, when the judgment unit judges current page is not first page, selects to use zero; Subtracter, it is used for the image length that register file is deposited is deducted the selection result of selector switch, to obtain the image length that current page need print; Counter, it is used for carrying out in the following manner delay counter, that is, from the corresponding initial value of the selection result of selector switch, unit distance of every delay, Counter Value subtracts 1, becomes till 0 up to Counter Value; Data-reading unit, it is used for when Counter Value becomes 0, from the data space of the view data of storing described operation, obtain the view data that current page will print in the following manner, and the data of obtaining sent to the digital ink-jet printing equipment print: when the judgment unit judges current page is first page, obtain current page, length is the view data of subtractor value; When the judgment unit judges current page was not first page, obtaining that page up does not print, length and be the view data of the spacing of depositing in the register file and the length of current page was the view data that subtractor value deducts described spacing.
The utility model has realized that the digital ink-jet printing equipment is applied to effective control of batch (-type) rotary printing equipment, thereby provide a kind of new typography that the digital ink-jet printing technology is combined with batch (-type) traditional printing technology, and owing to fully combine the own characteristic of batch (-type) rotary printing equipment and the body motion mode of undertaking the printing of thereof, the production efficiency of not only having possessed original batch (-type) traditional printing, but also improved the utilization rate of dielectric material greatly.
Description of drawings
Fig. 1 is the schematic diagram of image-forming block mounting means in the digital ink-jet printing equipment;
Fig. 2 is the effect schematic diagram that all the image-forming block groups in the digital ink-jet printing equipment are printed simultaneously;
Fig. 3 is the undertake the printing of curve synoptic diagram of body advancement stage acceleration of batch (-type) rotary printing equipment;
Fig. 4 is the effect schematic diagram that utilizes the control mode identical with full rotary printing equipment to print on batch (-type) wheel commentaries on classics equipment;
Fig. 5 is the structure chart that carries out the control device of polychrome ink jet printing according to digital ink-jet printing equipment of the present utility model on batch (-type) rotary printing equipment;
Fig. 6 is the effect schematic diagram according to control method printing of the present utility model.
The specific embodiment
Below, with embodiment the utility model is described with reference to the accompanying drawings.
As mentioned above, batch (-type) rotary printing equipment is in when printing, and the distance of the L1+L2+L3 that at every turn advances wherein, is printed when forward travel distance L2 at the uniform velocity, then the distance of rollback L1+L3.When beginning to print after L1 is advanced in acceleration once more, the position of the body of undertaking the printing of this moment that is to say that just in time in the position that last time, printing stopped the image that will begin to print this moment just in time can be connected with the image of printing last time.Technical conceive of the present utility model just is to utilize this characteristic of batch (-type) rotary printing equipment, and digital ink-jet printing equipment and batch (-type) rotary printing equipment are merged better.
In order to realize above purpose, the control system that the utility model provides a kind of digital ink-jet printing equipment to carry out the polychrome ink jet printing on batch (-type) rotary printing equipment is in this control system, for each image-forming block group has designed a control corresponding device.
As shown in Figure 5, this control device mainly comprises register file 10, judging unit 20, selector switch 30, subtracter 40, counter 50 and data-reading unit 60.
Wherein, register file 10 is used to deposit image length and the image-forming block group that this control device is controlled and the spacing between the benchmark of the page of the operation that will print, here specifying the image-forming block group of printing at first on the body direction of motion of undertaking the printing of is benchmark, promptly store print at first on the image-forming block group that this device controls and the body direction of motion of undertaking the printing of the spacing between the image-forming block group.In this case, for the image-forming block group of printing at first on the body direction of motion of undertaking the printing of, described spacing is 0.
Judging unit 20 is used to judge whether the current page that will print is first page.Judging unit 20 can comprise a counter and a comparator, and wherein, this counter is used for the number of pages of printing is counted, and initial value is 0; This comparator is used for this Counter Value and 1 is compared, and is first page if this Counter Value, is then judged current page less than 1, otherwise judges that current page is not first page.For ease of distinguishing, described counter included in the judging unit 20 and comparator can be called second counter and second comparator with counter 50 and following comparator 80.
Selector switch 30 is used for selecting to use described spacing when judging unit 20 judges that current page is first page, when judging unit 20 judges that current page is not first page, selects to use zero.
Subtracter 40 is used for the image length that register file 10 is deposited is deducted the selection result of selector switch 30, to obtain the image length that current page need print.
Counter 50 is used for carrying out in the following manner delay counter, that is, from the corresponding initial value of the selection result of selector switch 30, unit distance of every delay, Counter Value subtracts 1, becomes till 0 up to Counter Value.Here, be defined as follows about a unit distance: the dot array data of one page image, on the body direction of motion of undertaking the printing of, can think to form by a lot of bar lines, the distance between per two lines is called a unit distance.
Data-reading unit 60 is used for when Counter Value becomes 0, from the data space of the view data of storing described operation, obtain the view data that current page will print in the following manner, and the data of obtaining sent to the digital ink-jet printing equipment print: when judging unit 20 judges that current pages are first page, obtain current page, length is the view data of subtractor value; When judging unit 20 judged that current pages are not first page, obtaining that page up does not print, length and be the view data of the spacing of depositing in the register file 10 and the length of current page was the view data that subtractor value deducts described spacing.
In addition, this control device also can comprise adder 70 and comparator 80, and wherein, adder 70 is used for calculating in the following manner the image length of printing, that is, the data of a unit distance of every printing, the adder value adds 1; Whether comparator 80 is used for adder value and subtractor value (that is, the image length that current page need print) are compared, finish printing to judge current page.If current page does not finish printing, then adder 70 and comparator 80 are proceeded action, till comparator 80 judges that the adder value equals subtractor value.If current page finishes printing, then register file 10, judging unit 20, selector switch 30, subtracter 40, counter 50, data-reading unit 60, adder 70 and comparator 80 continue to repeat above-mentioned action, to descend the printing of one page.
In addition, this control device also comprises and being used for printing number of pages counter or the adder counted, and when this Counter Value or adder value equaled the number of pages of described operation, whole printing process finished.
In addition, for ease of data management, view data can separately independently manage in the space by the imaging parts, promptly, can be in different data spaces with the printed image data separate storage of each image-forming block group, can make data space mutually noninterfere between the image-forming block group like this.
Below, be that example describes still with above-mentioned three image-forming block groups 1,2 and 3.
For image-forming block group 2, deposit the image length L2 and the spacing a of the page in the memory of its control device heap 10.When judging unit 20 judged that current page is first page, selector switch selected to use spacing a.At this moment, subtractor value is (L2-a), and the printing length that obtains first page is (L2-a).Counter 50 carries out delay counter.When Counter Value became 0, data-reading unit 60 was obtained first page length and is the view data of (L2-a).When judging unit 20 judged that current page is not first page, selector switch was selected to use 0.At this moment, subtractor value is L2, and the printing length that obtains this page is L2.The value of sending into counter 50 is 0, and therefore, counter 50 need not to carry out delay counter, and data-reading unit 60 is directly obtained the view data of the length of view data that length that page up do not print is a and current page for (L2-a).At this moment, the image length of printing is L2.
For image-forming block group 1 and 3, deposit the image length L2 and the spacing 0 of the page in the memory of its control device heap 10.When judging unit 20 judged that current page is first page, selector switch selected to use spacing 0.At this moment, subtractor value is L2, and the printing length that obtains first page is L2.The value of sending into counter 50 is 0, and counter 50 need not to carry out delay counter, and it is the view data of L2 that data-reading unit 60 is directly obtained first page length.When judging unit 20 judged that current page is not first page, selector switch was selected to use 0.At this moment, subtractor value is L2, and the printing length that obtains this page is L2.The value of sending into counter 50 is 0, and counter 50 need not to carry out delay counter, and it is the view data of L2 that data-reading unit 60 is directly obtained first page length.
Fig. 6 is the effect schematic diagram according to control method of the present utility model and device printing.As shown in Figure 6, the coverage of image-forming block group 1 and 3 every page of printings is L2, begins after the image-forming block group group 2 delay distance a to print, and the coverage of first page of printing is (L2-a), and the coverage of the page print of back is L2.
Can find out that from the above description image-forming block group 1 and 3 can be used the control device identical with image-forming block group 2, and need not the extra control device that is provided with, and has reduced development difficulty like this.And, control device of the present utility model all adopts common hardware to realize, real-time height, good stability, simple, make the digital ink-jet printing equipment fully be fused on the batch (-type) rotary printing equipment, when increasing new technology, the production efficiency of having possessed original batch (-type) traditional printing again fully.In addition, the spacing in the register file that is provided in the above-mentioned control device can conveniently be revised, thereby is convenient to revise different jumping distances, is applicable to living-article of all sizes, has improved the scope of application of digital spray printing equipment.
Below with reference to drawings and Examples the utility model is described in detail; but; should be appreciated that the utility model is not limited to above disclosed specific embodiment, any modification based on the disclosed technical scheme of this specification all should be included in the protection domain of the present utility model.