CN204526366U - Printhead and cylinder synchronous control system in nanometer direct plate maker - Google Patents
Printhead and cylinder synchronous control system in nanometer direct plate maker Download PDFInfo
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- CN204526366U CN204526366U CN201420759679.8U CN201420759679U CN204526366U CN 204526366 U CN204526366 U CN 204526366U CN 201420759679 U CN201420759679 U CN 201420759679U CN 204526366 U CN204526366 U CN 204526366U
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- printhead
- cylinder
- controller unit
- servo
- servomotor
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Abstract
The utility model relates to printhead and cylinder synchronous control system in a kind of nanometer direct plate maker, comprise printhead and cylinder, it is characterized in that: there is controller unit, cylinder servo-drive device, cylinder servomotor, printhead servo-driver, printhead servomotor and encoder, wherein controller unit is by cylinder servo driver drives cylinder servomotor, the anglec of rotation that encoder detects cylinder servomotor feeds back to controller unit, controller unit exports control instruction according to the angle feedback signal of encoder, printhead action is controlled by printhead servo-driver.The utility model achieves the function of print head speed synchronized tracking drum movement, improves the security of system cloud gray model, has higher machining accuracy and flexibility, can increase substantially production efficiency.
Description
Technical field
The utility model relates to a kind of platemaking machine synchronous control technique, specifically printhead and cylinder synchronous control system in a kind of nanometer direct plate maker.
Background technology
Follow cylinder continuous rotation at nanometer direct plate maker head device in the process printed and produce the key that corresponding displacement is whole system, its performance plays vital effect in the quality of sheet material imaging, loss and production efficiency, also be the link that in whole production line, electrical control is the most complicated, therefore, improve the quality of printing, stablizing of equipment operation, safety is vital.Certainly will to improve the performance of overall system control.Adopt single motion mode during existing nanometer direct plate maker running, main shaft rotates and the motion of head device has no relation, controls separately.Much inconvenience can be brought like this in practical operation.Often there will be head card and tail card position that head device strikes cylinder in operation, can all scrap if occur to clash into printhead.Such cost can improve, and makes troubles to the operation of client.When sheet material changes, this system cannot meet current actual conditions, so use trouble the more.
The technology innovation of nanometer platemaking machine becomes the inevitable requirement of whole production line performance raising.
Utility model content
Adopt single motion mode that deficiencies such as colliding easily occurs for printhead and cylinder in nanometer direct plate maker in prior art, it take high reliability as printhead and cylinder synchronous control system in the nanometer direct plate maker of control objectives that the technical problems to be solved in the utility model is to provide a kind of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
Printhead and cylinder synchronous control system in a kind of nanometer direct plate maker of the utility model, comprise printhead and cylinder, there is controller unit, cylinder servo-drive device, cylinder servomotor, printhead servo-driver, printhead servomotor and encoder, wherein controller unit is by cylinder servo driver drives cylinder servomotor, the anglec of rotation that encoder detects cylinder servomotor feeds back to controller unit, controller unit exports control instruction according to the angle feedback signal of encoder, printhead action is controlled by printhead servo-driver.
Described encoder is installed on the main shaft of cylinder servomotor.
Described cylinder has head card and tail card, the position signalling of head card and tail card transfers to controller unit, and controller unit exports control instruction according to head card tail card position signal, controls printhead action by printhead servo-driver.
Also have and enter the operating instructions and the control flow of controling parameters, it is connected to the input of controller unit.
Described controller unit is multi-axis motion controller.
The utility model has following beneficial effect and advantage:
1. the utility model is according to the characteristics of motion of cylinder, study its Trajectory Tracking Control algorithm, utilize the electric cam function of TRIO motion controller, achieve the function of print head speed synchronized tracking drum movement, improve the security of system cloud gray model, there is higher machining accuracy and flexibility, can significantly enhance productivity.
2. the utility model control system effectively can improve response speed, the printing precision of printhead, and is applicable to cylinder rotation more at a high speed, and realizes energy-saving and cost-reducing target.
Accompanying drawing explanation
Fig. 1 is the utility model electrical structure schematic diagram;
Fig. 2 is present system intermediate roll tangent plane fundamental diagram, and wherein 2a is present system intermediate roll tangent plane fundamental diagram (), and 2b is present system intermediate roll tangent plane fundamental diagram (two);
Fig. 3 is the head card of the utility model system print device and cylinder, tail card position changes schematic diagram;
Fig. 4 is sheet material change schematic diagram () in the utility model system;
Fig. 5 is sheet material change schematic diagram (two) in the utility model system;
Fig. 6 is the method control flow chart of the utility model application;
Fig. 7 is the method cam state modulator algorithm flow chart of the utility model application.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is further elaborated.
As shown in Figure 1, the utility model is printhead and cylinder synchronous control system in a kind of nanometer direct plate maker, comprise printhead and cylinder, there is controller unit, cylinder servo-drive device, cylinder servomotor, printhead servo-driver, printhead servomotor and encoder, wherein controller unit is by cylinder servo driver drives cylinder servomotor, the anglec of rotation that encoder detects cylinder servomotor feeds back to controller unit, controller unit exports control instruction according to the angle feedback signal of encoder, printhead action is controlled by printhead servo-driver.
Encoder is installed on the main shaft of cylinder servomotor.Cylinder has head card and tail card, the position signalling of head card and tail card transfers to controller unit, and controller unit, according to head card tail card position signal input/output control command, controls printhead action by printhead servo-driver.
The utility model system is also configured with and enters the operating instructions and the control flow of controling parameters, and it is connected to the input of controller unit.Described controller unit is multi-axis motion controller.
The implementation case with TRIO motion controller for core, adopt the version of motion controller+servo-driver+motor encoder+servomotor, the high accuracy of electric cam, high speed, wide cut value, high efficiency, high reliability is used to be control objectives, control core is tracked as with the synchronizing speed of accurately locating and respond fast, to save energy and reduce the cost as basic principle, design a set of high performance multi-axis control system.Wherein multi-axis motion controller is SC209; Driver is ADK servomechanism; Servo-driver is Panasonic A4; Motor is ADK servomotor is Panasonic A4 servomotor; Encoder is ADK electric machine built-in encoder, system adopts the SC209 multi-axis motion controller of Trio Motion Technology company of Britain to be that control core cylinder adopts Kollmorgen WorkBench driven by servomotor cylinder continuous rotation, and printhead realizes being synchronized with the movement by electric cam structure.Utilize the high performance synchronized tracking function of SC209 motion controller, meet structure and to be beyond one's reach requirement, thus make the mechanical speed that system reaches higher.
As shown in Figure 6,7, in a kind of rice direct plate maker of the utility model, printhead and cylinder synchronisation control means comprise the following steps:
Controller unit utilizes the electric cam control algolithm of its inside to calculate cam parameter, generates CAM table;
Determine sheet material, coordinate sheet material to store a set of CAM table parameter;
What printing equipment followed that cylinder tail is stuck in CAM table lifts a little for X;
Judge whether sheet material size changes;
As sheet material size does not change;
Judge whether in position printhead;
If printhead in position, then controller unit index drum gets back to cylinder zero;
Controller unit controls printhead and removes assigned address;
Starting cam table;
While controller unit index drum continuous rotation, obtain corresponding displacement by CAM table, printhead is followed drum spindle and is performed motion;
When there being stopping signal, shutting down, completing a Synchronization Control process.
If printhead not in position, then gives original position for change automatically.
If when sheet material plate amplitude variation is large, the start-up point of CAM table is X=X+L3;
Store up-to-date CAM table parameter, continue then controller unit index drum continuous rotation step.
If sheet material plate amplitude variation hour, the start-up point of CAM table is X=X-L3;
Store up-to-date CAM table parameter, continue then controller unit index drum continuous rotation step.
Calculate cam parameter to comprise the following steps:
Cylinder is divided into M point for one week, and the cylinder umber of pulse of a week is C, then the umber of pulse of each point is M/C;
Tail card is L1 apart from the distance of printhead, and pulse distance is N1=L1/ (M/C);
Head card is L2 apart from the distance of printhead, and pulse distance is N2=L2/ (M/C);
The distance of tail card change is L3, and pulse distance is N3=L3/ (M/C).
The running orbit of the utility model system utilizes the electric cam function of SC209 to realize.Motor encoder often rotates a circle (C=117040 pulse), and respective rollers rotates a circle, and prints electric machine rising, decline one-off simultaneously; Wherein the run location of drum apparatus and head device, the speed of service are by the electronic gear table control realization of moving cell respective in PLC control module.Therefore, when the Rolling motor speed of service changes, motor encoder rotates corresponding umber of pulse.
As shown in Figure 2, its movement locus, in motion one-period, can be divided into Liang great Qu by cylinder, and ABC is for hiding Tou Kaweika district, and AZC is print job district.When the drum movement cycle arrives A point (see 2b), head device carries out corresponding ascending motion according to the position that electric cam is given.When point of arrival B point and printing equipment carry out corresponding descending motion according to the position that electric cam is given subsequently at peak and reach C point.Now the movement position of printing equipment just hides head card.When the cycle shortly past C point time (see 2a), carry out corresponding descending motion according to the position that electric cam is given and touch the bottom, until lift when moving to A point.It is now the beginning in the end of one-period or new cycle.
The electric cam table of native system rotates a circle according to often the rotate a circle umber of pulse respective rollers of (117040 pulse) of motor encoder, prints that the stroke that electric machine follows the tracks of cylinder rises, decline one-off simultaneously.And printing equipment rise and fall one-off is head card tail card position according to cylinder and fixed.Namely the head card of cylinder is the zero-bit of cylinder, is also the original position that printing equipment is followed.Because the position of head card is fixing, so it is also corresponding that corresponding printhead follows the displacement blocked to the end.Difficult point be tail card follow change.According to the size of sheet material, the position of tail card is also corresponding change occurs, so following of tail card is servo-actuated.The realization of native system is the size according to a set of sheet material of specifying, the anti-change in displacement releasing the CAM table of any one sheet material.
The method realized specifically has two schemes.Scheme is as follows:
The first scheme, manual adjustments method.
First scheme, calculates the corresponding displacement of CAM table according to the goniometer of cylinder.
The present embodiment is for first scheme.As shown in Figure 3, first cylinder is divided at least 40 points, native system with 80 address points for standard, i.e. 80 CAM table addresses.And a circle pulse of cylinder is (117040), so the pulse 117040/80=1463 of 80 of cylinder some draw minute points.As long as calculating the pulse walked of tail card distance printing equipment is distance L1, N1 is the address points number that tail snaps into printhead, computational methods are that N1=L1/1463 asks downwards whole (Fig. 3 A), just can show that several cam point is included, can show that the displacement of CAM table which point to start to do the action of lifting of hiding tail card at (printing equipment has the printing of 2.5mm blank in print procedure, wholely both can meet time CAM table condition so only demand during N1=L1/1463.)。As long as hide head card to calculate umber of pulse distance L2 between tail card and head card, N2 is the address points number that tail snaps into head card, and computational methods are that N2=L2/1463 asks downwards whole (Fig. 3 C), just can show that several cam point is included.When sheet material generation size variation time, as shown in Figure 4, as long as the size of input slab, tail card can make corresponding adjustment, and tail card is the address points number of tail card apart from protocercal tail card apart from the distance L3 of the movement of protocercal tail card, N3, computational methods are that N3=L3/1463 asks whole (Fig. 5) downwards, when sheet material becomes large, the displacement that tail snaps into printing equipment can rise N3 address points corresponding evening.Otherwise then early decline a corresponding N3 address points.In Fig. 3, black bars is printing equipment, and A point is head card, and B point is tail card.
Groped and on-the-spot practice by long-term, the accuracy that two schemes is combined is higher, more accurate, sooner.
The running orbit of native system utilizes the electric cam function of SC209 to realize, and motor encoder is as main shaft signal, and printing equipment motor is as from axle.According to the umber of pulse of the encoder of Real-time Collection, from axle by according to being stored in control algolithm (cam parameter list) SC209, obtain the displacement of response, thus make printing equipment follow main shaft to perform motion.TABLE district is used for storing CAM/CAMBOX instruction curve, for storing the control algolithm of designated movement rule in this program.
Claims (5)
1. printhead and cylinder synchronous control system in a nanometer direct plate maker, comprise printhead and cylinder, it is characterized in that: there is controller unit, cylinder servo-drive device, cylinder servomotor, printhead servo-driver, printhead servomotor and encoder, wherein controller unit is by cylinder servo driver drives cylinder servomotor, the anglec of rotation that encoder detects cylinder servomotor feeds back to controller unit, controller unit exports control instruction according to the angle feedback signal of encoder, printhead action is controlled by printhead servo-driver.
2., by printhead and cylinder synchronous control system in nanometer direct plate maker according to claim 1, it is characterized in that: described encoder is installed on the main shaft of cylinder servomotor.
3. by printhead and cylinder synchronous control system in nanometer direct plate maker according to claim 1, it is characterized in that: described cylinder has head card and tail card, the position signalling of head card and tail card transfers to controller unit, controller unit exports control instruction according to head card tail card position signal, controls printhead action by printhead servo-driver.
4. by printhead and cylinder synchronous control system in nanometer direct plate maker according to claim 1, it is characterized in that: also have and enter the operating instructions and the control flow of controling parameters, it is connected to the input of controller unit.
5., by printhead and cylinder synchronous control system in nanometer direct plate maker according to claim 1, it is characterized in that: described controller unit is multi-axis motion controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420759679.8U CN204526366U (en) | 2014-12-05 | 2014-12-05 | Printhead and cylinder synchronous control system in nanometer direct plate maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420759679.8U CN204526366U (en) | 2014-12-05 | 2014-12-05 | Printhead and cylinder synchronous control system in nanometer direct plate maker |
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| Publication Number | Publication Date |
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| CN204526366U true CN204526366U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420759679.8U Expired - Fee Related CN204526366U (en) | 2014-12-05 | 2014-12-05 | Printhead and cylinder synchronous control system in nanometer direct plate maker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608467A (en) * | 2014-12-05 | 2015-05-13 | 丹东金丸集团有限公司 | System and method for synchronously controlling print head and roller in nanometer computer to plate |
| CN105904858A (en) * | 2016-04-29 | 2016-08-31 | 西安印艺苑实业有限公司 | Stamping machine |
-
2014
- 2014-12-05 CN CN201420759679.8U patent/CN204526366U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608467A (en) * | 2014-12-05 | 2015-05-13 | 丹东金丸集团有限公司 | System and method for synchronously controlling print head and roller in nanometer computer to plate |
| CN104608467B (en) * | 2014-12-05 | 2017-08-18 | 丹东金丸集团有限公司 | Printhead and roller synchronisation control means in nanometer direct plate maker |
| CN105904858A (en) * | 2016-04-29 | 2016-08-31 | 西安印艺苑实业有限公司 | Stamping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20171205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |