CN102173182B - Roller type ink jet stenciling method and device - Google Patents
Roller type ink jet stenciling method and device Download PDFInfo
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- CN102173182B CN102173182B CN 201110031819 CN201110031819A CN102173182B CN 102173182 B CN102173182 B CN 102173182B CN 201110031819 CN201110031819 CN 201110031819 CN 201110031819 A CN201110031819 A CN 201110031819A CN 102173182 B CN102173182 B CN 102173182B
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Abstract
The invention provides an ink jet stenciling device, which comprises a frame used for supporting the whole device, a transmission part for transmitting power to the whole device, a roller and a nozzle group, wherein in the stenciling process, a printing plate is pressed and attached to the roller so as to rotate at a constant speed with the roller; and the nozzle group can move linearly along the axial direction of the roller; and in the printing process, the nozzle group continuously moves to print on the printing plate, and the roller rotates the printing plate multiple circles simultaneously.
Description
Technical field
The present invention provides a kind of drum-type ink-jetting forme-producing method and apparatus.
Background technology
In the plate making technical field; The plate-making process of present ink-jetting forme-producing output equipment is such: the image information that will export is represented with four looks or special color bitmap after rasterisation, color separation, extension net are handled; Then with the ink-jetting forme-producing output equipment with four looks or specially the image information recording represented of color bitmap to CTP (CTP) forme, realize the reproduction of image information and duplicate.
Forme is generally the aluminium alloy forme, and thickness is at 0.15～0.30mm, and according to different use occasions and requirement, size can be selected or decide voluntarily.For example, the forme of a certain model is of a size of 785*1030, and the maximum print area is 715*1020mm, minimum print size: 330*480mm.
Common ink-jetting forme-producing method mainly is a plane formula ink-jetting forme-producing method at present, wherein, forme is lain on the table top, and printer reciprocal stepping on forme is moved, to print entire image.Yet when handling large-area forme, this plane formula ink-jetting forme-producing method has some shortcomings:
1. the plane formula ink-jetting forme-producing needs very big calandria area to heat forme, and because the inconsistent meeting of installation manufacturing process of calandria causes the uneven problem of heating.
2. very high to the flatness requirement of forme and forme placement platform, if flatness is not enough, can cause jet head sets can't fix to dull and stereotyped distance, on a version, have tens microns difference, influence printing effect.
In document 1 (Chinese invention patent application CN101239537), mentioned the cylinder digital printer that direct spray printing printing ink is made a plate on printing with aluminium base.Referring to Fig. 5, this printing machine comprises frame 22, is installed in the cylinder 12 on the frame 22, and spray printing and solidification equipment and having waits to print the support 1 of material volume 2.Cylinder 12 is built-in with adsorbent equipment, is power with the vavuum pump, with so that printing material is close on the cylinder 12, in whole spray printing process, is not subjected to displacement.Cylinder 12 rotates continuously, is provided with the rectilinear motion unit in a side of cylinder 12 principle cutoff devices, is fixed on the frame 22.Spray printing and solidification equipment comprise jet head sets, are installed on the rectilinear motion unit, through the axial stepping feeding of rectilinear motion unit along cylinder 12.Cylinder 12 is forever to a direction uniform rotation, and in cylinder rotation N week, then jet head sets stepping N goes on foot, up to finishing whole picture width W, i.e. W=N*L along drum length direction spray printing.
When this scheme adopts cylinder rotation, the method for jet head sets straight line step motion carries out, jet head sets is not moved in the time of spray printing.
Yet there are several shortcomings in this step step motion:
1. stepping error, stepping error possibly caused by multiple factor, because the stepping error has the band generation in the motion, wherein because the effect of inertia that the weight of frame for movement causes is a key factor that causes stepping error effect printing precision.
2. step-by-step system can produce vibrations, and stepping need be experienced acceleration and moderating process repeatedly, and this process can produce vibrations; If the jet head sets box weight increases, can reduce some vibrations relatively, but can increase inertia; If the jet head sets box weight reduces; Then increase vibrations, reduce inertia, but both can't avoid simultaneously.And the required precision of making a plate at present is at micron order, so inertia all is very serious with the error that vibrations are brought, be various interference lines the generation source it
3. from the angle of control, use motor control intermittently stepping need mass ratio preferably motor could guarantee suitable translational speed and moving interval, this motor price is generally higher.
Therefore, need a kind ofly can directly be used for ink-jetting forme-producing at present, the ink-jetting forme-producing equipment that cost is low, precision is high simultaneously.
Summary of the invention
Consider above-mentioned shortcoming, propose a kind of drum-type ink-jetting forme-producing method and apparatus.
The present invention provides a kind of ink-jetting forme-producing device, comprising: frame is used to support whole device; Running part sends power to whole device; Cylinder, in the plate-making process, forme is compacted to be attached to said cylinder at the uniform velocity to rotate with cylinder; And jet head sets, can move to straight line along drum shaft, wherein, in print procedure, said jet head sets moves continuously, on forme, prints, and cylinder encloses the rotation forme more simultaneously.
Optional, beginning by original position, jet head sets is at the uniform velocity mobile, and the moving circle of cylinder revolution this moment prints off an oblique line image on forme, and so cylinder repeatedly rotates until jet head sets and moves to the final position.
Optional, the unidirectional mobile print of said jet head sets.
Optional, the two-way mobile print of said jet head sets.
Optional, this device also comprise be used for print procedure clamp all the time forme hold tooth in the month and be used to control hold the opening of tooth, closed action in the month hold the tooth control section in the month.
The present invention provides a kind of ink-jetting forme-producing method, comprises the steps: to send into forme to cylinder; When forme arrived the zero-bit of cylinder, forme was compacted and be attached on the cylinder; In print procedure, jet head sets moves to straight line along drum shaft continuously, on forme, prints, and cylinder encloses the rotation forme more simultaneously.
Description of drawings
Fig. 1 is the side view of the structure of ink-jetting forme-producing equipment of the present invention.
Fig. 2 is the rearview of the structure of ink-jetting forme-producing equipment of the present invention.
Fig. 3 A-3C is that ink-jetting forme-producing equipment of the present invention batches the diagrammatic sketch of first, second and third step of forme.
Fig. 4 is the synoptic diagram of explanation ink-jetting forme-producing equipment plate-making of the present invention principle.
Fig. 5 is the structure chart of the cylinder digital printer of prior art.
The specific embodiment
The present invention provides a kind of drum-type ink-jetting forme-producing method and apparatus.
Referring to Fig. 1 and 2, ink-jetting forme-producing device of the present invention comprises: be used for supporting whole device frame 1, with power send to whole device running part 2, rotatable with the cylinder 4 that transmits forme 7, can along the axial direction straight line uniform motion of cylinder with the jet head sets 3 that on forme, prints, be used for print procedure clamp all the time forme hold tooth 5 in the month, be used to assist forme along the conveying mechanism 6 of the conveying of cylinder and be used to control hold the opening of tooth, closed action in the month hold tooth control section 8 in the month.
Forme shown in Fig. 3 A-3C is adsorbed and the process of winding up on cylinder 4.In the present invention, jet head sets is continuous motion in printing, specifies as follows.
Shown in Fig. 3 A, after advancing version, the front end of forme is admitted to conveying mechanism, arrives the cylinder zero-bit.When forme arrives the cylinder zero-bit, hold the tooth closure in the month, be pressed to forme on the cylinder.Holding tooth in the month is fixed on the cylinder through the rotating shaft on the cylinder and cylinder rotates together.Simultaneously, under as the cooperation of cam of holding tooth control section example in the month, realize holding in the month the opening of tooth, closed action.
Next, shown in Fig. 3 B, forme is adsorbed on the cylinder through the vacuum absorption device in the cylinder, and the beginning ink-jetting forme-producing.At this moment, drive through feed screw nut, jet head sets by original position along the unidirectional continuously and smoothly's rectilinear motion of the axial direction of cylinder position to terminal; To carry out ink-jet imaging; Cylinder is begun to roll by original position simultaneously, carries out the circular motion of many circles, cooperates jet head sets to accomplish ink-jetting forme-producing jointly.After the view picture drawing was printed and accomplished, jet head sets was got back to original position by the final position.
Particularly, as shown in Figure 4 in the process of ink-jetting forme-producing, jet head sets is only carried out unidirectional rectilinear motion, and cylinder carries out the circular motion of many circles.If the motion of cylinder and jet head sets all is under the situation of uniform motion, then the moving circle of cylinder revolution will print off an oblique line image on forme shown in Figure 4, shown in Fig. 4 solid line.In this oblique line image, the starting point of second oblique line and the terminal point of article one oblique line have the position relation that overlaps basically, and shown in Fig. 4 dotted line, this is the inevitable outcome that many circles rolling movement of cylinder is caused.And the spacing between each oblique line is by jet head sets motion decision.Jet head sets is moved soon, and then the spacing between each bar oblique line is big, if jet head sets is moved slowly, then the spacing between each bar oblique line is little.Therefore, the spacing of imaging pixel can realize through the movement velocity of control jet head sets.
So, cylinder encloses rotation more and moves to the final position until jet head sets, will form the entire image by many oblique line image constructions on the forme.Through the relation between calculated in advance print position and the image, can form appropriate image through such oblique line printing type.The exaggerative position relation of having represented each track of Fig. 4, in the actual print between each bar line spacing very little.
When printing end, hold tooth in the month and open, the output forme.
Though one of characteristic of the present invention is jet head sets of the present invention and is rectilinear motion, does not adopt step-by-step system or other intermittent movement modes, but continuously and smoothly's motion incessantly.
Compare plane formula ink-jetting forme-producing method, the present invention adopts drum-type ink-jetting forme-producing method, and advantage is:
1. can arrange a heater in the drum center, can evenly heat whole tube face, help the ink dot moulding of ink-jet.
2. produce the technical maturity of cylinder, guarantee that easily the inkjet head group is in the little error range of permission to the distance of cylinder surface.
3. cylinder is continuous motion, and the technology through Electric Machine Control speed is ripe at present, and therefore control can be more accurate.
Compare step-by-step system, the present invention adopts the straight-line drum-type ink-jetting forme-producing of jet head sets continuously and smoothly method, and advantage is:
1. from mechanical angle, continuously and smoothly's motion does not need frequent acceleration, deceleration, has therefore reduced inertia and vibration influence, has improved the plate-making precision.
2. from the control angle, the technology maturation that the speed when using motor to uniform motion is controlled, precision height and cost are very low.
The foregoing description it will be understood by those skilled in the art that for the other technologies purpose only as an example, and jet head sets is uniform motion not also, but perhaps jet head sets bidirectional-movement, so that improve printing precision.In addition, the frame for movement that drives the jet head sets motion also has multiple choices, is not limited to the feed screw nut among the figure.
The used motor of present embodiment is a direct current generator, but anyly can make jet head sets carry out continuous straight-line motor can to adopt, be not limited to direct current generator.
As those skilled in the art can understand, the preferred embodiments of the present invention were explanation of the present invention but are not limited to this description.Can change and revise composition member, the kind of drive of this ink-jetting forme-producing device or the like.
Claims (10)
1. ink-jetting forme-producing device comprises:
Frame is used to support whole device;
Running part sends power to whole device;
Cylinder, in the plate-making process, forme is compacted to be attached to said cylinder at the uniform velocity to rotate with cylinder; With
Jet head sets can move to straight line along drum shaft,
Wherein, in print procedure, said jet head sets moves continuously, on forme, prints, and cylinder encloses the rotation forme more simultaneously.
2. device as claimed in claim 1 is wherein begun by original position, and jet head sets is at the uniform velocity mobile, and the moving circle of cylinder revolution this moment prints off an oblique line image on forme, and so cylinder repeatedly rotates until jet head sets and moves to the final position.
3. device as claimed in claim 1, the unidirectional mobile print of wherein said jet head sets.
4. device as claimed in claim 1, the two-way mobile print of wherein said jet head sets.
5. device as claimed in claim 1, wherein also comprise be used for print procedure clamp all the time forme hold tooth in the month and be used to control hold the opening of tooth, closed action in the month hold the tooth control section in the month.
6. an ink-jetting forme-producing method comprises the steps:
Send into forme to cylinder;
When forme arrived the zero-bit of cylinder, forme was compacted and be attached on the cylinder;
In print procedure, jet head sets moves to straight line along drum shaft continuously, on forme, prints, and cylinder encloses the rotation forme more simultaneously.
7. method as claimed in claim 6 is wherein begun by original position, and jet head sets is at the uniform velocity mobile, and the moving circle of cylinder revolution this moment prints off an oblique line image on forme, and so cylinder repeatedly rotates until jet head sets and moves to the final position.
8. device as claimed in claim 6, the unidirectional mobile print of wherein said jet head sets.
9. device as claimed in claim 6, the two-way mobile print of wherein said jet head sets.
10. method as claimed in claim 6 is wherein held tooth in the month and is clamped forme in print procedure, hold the control of tooth control section in the month and hold the opening of tooth, closed action in the month to realize clamping and unclamping forme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031819 CN102173182B (en) | 2011-01-28 | 2011-01-28 | Roller type ink jet stenciling method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031819 CN102173182B (en) | 2011-01-28 | 2011-01-28 | Roller type ink jet stenciling method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102173182A CN102173182A (en) | 2011-09-07 |
| CN102173182B true CN102173182B (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110031819 Expired - Fee Related CN102173182B (en) | 2011-01-28 | 2011-01-28 | Roller type ink jet stenciling method and device |
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| Country | Link |
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| CN (1) | CN102173182B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309318A (en) * | 2014-10-24 | 2015-01-28 | 合肥东彩印刷科技有限公司 | Hardboard print device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582213B (en) * | 2012-03-20 | 2014-01-01 | 丹东金丸集团有限公司 | Nanomaterial computer-to-plate |
| CN110481157B (en) * | 2019-09-12 | 2024-08-16 | 苏州锐发打印技术有限公司 | Ink jet printing apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062319A (en) * | 1990-12-10 | 1992-07-01 | 陈昌晔 | Multipurpose device for typesetting, printing and typewriting |
| JP3637345B1 (en) * | 2003-09-24 | 2005-04-13 | ハマダ印刷機械株式会社 | Line dot recording device |
| CN101239537A (en) * | 2007-02-07 | 2008-08-13 | 梁健 | Cylinder digit printing machine and printing method thereof |
| CA2700458C (en) * | 2007-08-20 | 2016-09-27 | Moore Wallace North America, Inc. | Apparatus and methods for controlling application of a substance to a substrate |
-
2011
- 2011-01-28 CN CN 201110031819 patent/CN102173182B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104309318A (en) * | 2014-10-24 | 2015-01-28 | 合肥东彩印刷科技有限公司 | Hardboard print device |
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| CN102173182A (en) | 2011-09-07 |
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