CN104772998A - Overprinting method taking rubber-coated center roller as printing roller - Google Patents
Overprinting method taking rubber-coated center roller as printing roller Download PDFInfo
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- CN104772998A CN104772998A CN201510155355.2A CN201510155355A CN104772998A CN 104772998 A CN104772998 A CN 104772998A CN 201510155355 A CN201510155355 A CN 201510155355A CN 104772998 A CN104772998 A CN 104772998A
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- satellite
- servo
- frequency converter
- encapsulate
- rewinding
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Abstract
The invention discloses an overprinting method taking a rubber-coated center roller as a printing roller. Based on a following control system, the specific structure of the control system is characterized in that a PLC (programmable logic controller) is connected with a discharging frequency converter of a discharging part, a discharging traction frequency converter of a discharging traction part, a cooling frequency converter of a cooling part, a collecting traction frequency converter of a collecting traction part and a collecting frequency converter of a collecting part respectively; the PLC also can be connected with a PD3 motion controller by an Ethernet switch; the PD3 motion controller is also connected with a satellite intaglio center rubber-coated center roller, a satellite part one color servo, a satellite part two color servo, a satellite part three color servo and a satellite part four color servo in sequence. By adopting a control manner that the PLC and the PD3 motion controller respectively and independently control corresponding parts and are correlated, the problems of low overprinting precision and speed, poor control precision, and poor printing continuity and stability existing in the prior art are solved.
Description
Technical field
The invention belongs to printing equipment technical field, being specifically related to a kind of is the overprinting method of roller of undertaking the printing of with encapsulate breast roll.
Background technology
It is extremely wide that printing equipment relates to face, the printing machinery used at present in China is mainly offset press, unit type intaglio press, set type flexible printing machine and satellite-type flexible printing machine, wherein the printing effect of offset printing and unit type intaglio press is best, but must solvent type ink be used, and be doomed to produce certain tension force stretching to stock due to the structure of its set type, so be not suitable for the not resistance to printing drawing high material, and satellite-type flexible printing machine environmental protection, print speed printing speed is fast, but be limited to technique, its printing effect cannot be compared with intaglio printing etc. again, be in the printing circle kind and upright men of awkward boundary finally through exploration, improve a kind of new structure: full servo satellite type intaglio printing machine, the birth of this structure, can be described as the revolution on printing circle, especially in the print material requiring printing effect fineness and not stretch-proof, how to make this type perfection running, it is particularly important that the automatic control so carrying out this novel type just becomes.
Satellite-type intaglio plate machine is once in control or relatively backward, its satellite Printing Department is mainly by gear drive, center swift is driven by a variable-frequency motor, at the transmission side You Yigehe center swift of center swift with the helical gear of diameter, also respectively there is a gear in each Printing Department, the gear of each Printing Department is driven by the helical gear of center swift, and then Printing Department is operated, comprising chromatography etc. is also all rely on helical gear mechanism to complete, because the physical characteristic etc. of machinery, the continuity of printing and stability can be caused to have a greatly reduced quality, speed cannot ensure.Especially because be satellite-type intaglio printing structure, so necessarily center roller (center large roller) of undertaking the printing of is rubber covered roll, rubber covered roll is the inevitable deformation problems different under different roller in the face of roller of undertaking the printing of then, and cause synchronism to be difficult to ensure, chromatography is extremely difficult especially.
Summary of the invention
The object of this invention is to provide a kind of is the overprinting method of roller of undertaking the printing of with encapsulate breast roll, solves the chromatography precision that exists in prior art and speed is low, control accuracy is poor, the continuity of printing and the problem of poor stability.
The technical solution adopted in the present invention is, a kind of is the overprinting method of roller of undertaking the printing of with encapsulate breast roll, based on following control system, control system concrete structure is: PLC respectively with the blowing frequency converter in blowing portion, the blowing traction frequency convertor of blowing tractive unit, the cooling frequency converter of cooling end, the rewinding traction frequency convertor of rewinding tractive unit, the rewinding frequency converter in rewinding portion connects, by controlling blowing part, blowing traction element, water-cooled part, rewinding traction element, running in order of rewinding part ensures that the printing work of complete machine carries out in order, PLC is also connected with PD3 motion controller by ethernet switch hub simultaneously, PD3 motion controller is connected with again satellite intaglio plate center encapsulate breast roll in turn, satellite portion servo of the same colour, satellite portion two look servo, satellite portion three look servo, satellite portion four look servo, to realize the accurate motion controlling satellite Printing Department,
Specifically implement according to following steps:
After step 1, complete machine start, first calculate current complete machine speed of service V by PLC according to the acceleration time T, the maximum operational speed Vmax that preset, and then current complete machine speed of service V is scaled respectively blowing frequency converter, blowing traction frequency convertor, cooling frequency converter, rewinding traction frequency convertor, rewinding frequency converter frequency values separately;
Step 2, the frequency values conversion in step 1 obtained send to blowing frequency converter, blowing traction frequency convertor, cooling frequency converter, rewinding traction frequency convertor, rewinding frequency converter respectively, and by the tension feedback of each frequency converter, real-time correction, ensure the stability of complete machine tension force, complete machine speed of service V is passed to PD3 motion controller by ethernet switch hub simultaneously;
The complete machine speed of service V that PLC in step 3, PD3 motion controller real-time reception to step 2 is sent here, is converted to the angular speed V of satellite intaglio plate center encapsulate breast roll by complete machine speed of service V
s, and by the angular speed V of satellite intaglio plate center encapsulate breast roll
ssend to the driver of satellite intaglio plate center encapsulate, thus drive satellite intaglio plate center encapsulate breast roll to make with blowing frequency converter, blowing traction frequency convertor, cool frequency converter, rewinding traction frequency convertor, rewinding frequency converter operate with identical linear velocity, ensure the uniformity of the complete machine speed of service, then satellite portion servo of the same colour, satellite portion two look servo, satellite portion three look servo, satellite portion four look servo are according to the diameter d of satellite intaglio plate center encapsulate breast roll
2the diameter d of servo roller is printed with satellite
3ratio, satellite intaglio plate center encapsulate breast roll is set as the main shaft in camming movement, using the printing servo roller of servo of the same colour for satellite portion, satellite portion two look servo, satellite portion three look servo, satellite portion four look servo as in camming movement from axle, cam curve is set as 1:1 linear movement, and the molecule denominator ratio in electric cam function is set as d
2/ d
3, so just realize the angular speed uniform synchronization of satellite portion servo of the same colour, satellite portion two look servo, satellite portion three look servo, satellite portion four look servo four servo print roller;
Feature of the present invention is also,
In step 1, the computing formula of complete machine speed of service V is as follows:
V＝V
0+V
max×t÷T，
In formula, V
0for the speed of service that PLC presets, Vmax is the maximum operational speed that PLC presets, and t is the time of setting, and T is the acceleration time that PLC presets.
The computing formula of step 1 medium frequency value F is as follows:
F＝V÷(π×d
1)×G÷1450×50，
In formula, V is the complete machine speed of service, and G is speed reducing ratio, d
1for blowing frequency converter, blowing traction frequency convertor, cooling frequency converter, rewinding traction frequency convertor, rewinding frequency converter diameter separately, π is pi.
The angular speed V of the satellite intaglio plate center encapsulate breast roll in step 3
scomputing formula as follows:
V
s＝V÷(π×d
2×60×360)，
In formula, V is the complete machine speed of service, and π is pi, d
2for the diameter of satellite intaglio plate center encapsulate breast roll.
The invention has the beneficial effects as follows, a kind of is the overprinting method of roller of undertaking the printing of with encapsulate breast roll, independently control corresponding component separately by adopting PLC and PD3 motion controller to be mutually related again control mode, specifically control program can be adjusted for various piece in debug process, and without global revision, effectively prevent the appearance of situation of by mistake deleting, ensure that the stable and reliable readable of program.
Accompanying drawing explanation
Fig. 1 be the present invention a kind of with encapsulate breast roll be undertake the printing of roller overprinting method PD3 motion controller control schematic diagram;
Fig. 2 be the present invention a kind of with encapsulate breast roll be undertake the printing of roller overprinting method PLC control schematic diagram.
In figure, 1.PD3 motion controller, 2. satellite intaglio plate center encapsulate breast roll, 3. satellite portion servo of the same colour, 4. satellite portion two look servo, 5. satellite portion three look servo, 6. satellite portion four look servo, 7. ethernet switch hub, 8.PLC controller, 9. blowing frequency converter, 10. blowing traction frequency convertor, 11. cooling frequency converters, 12. rewinding traction frequency convertors, 13. rewinding frequency converters.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention is a kind of is the overprinting method of roller of undertaking the printing of with encapsulate breast roll, based on following control system, as Fig. 1, shown in Fig. 2, control system concrete structure is: PLC 8 respectively with the blowing frequency converter 9 in blowing portion, the blowing traction frequency convertor 10 of blowing tractive unit, the cooling frequency converter 11 of cooling end, the rewinding traction frequency convertor 12 of rewinding tractive unit, the rewinding frequency converter 13 in rewinding portion connects, by controlling blowing part, blowing traction element, water-cooled part, rewinding traction element, running in order of rewinding part ensures that the printing work of complete machine carries out in order, PLC 8 is also connected with PD3 motion controller 1 by ethernet switch hub 7 simultaneously, PD3 motion controller 1 is connected with again satellite intaglio plate center encapsulate breast roll 2 in turn, satellite portion servo 3 of the same colour, satellite portion two look servo 4, satellite portion three look servo 5, satellite portion four look servo 6, to realize the accurate motion controlling satellite Printing Department,
Specifically implement according to following steps:
Step 1, complete machine start after, first by PLC 8 according to the acceleration time T, the maximum operational speed V that preset
maxcalculate current complete machine speed of service V, the computing formula of complete machine speed of service V is as follows:
V＝V
0+V
max×t÷T，
In formula, V
0for the speed of service that PLC 8 presets, Vmax is the maximum operational speed that PLC 8 presets, t is the time of setting, T is the acceleration time that PLC 8 presets, and then current complete machine speed of service V is scaled respectively the respective frequency values of blowing frequency converter 9, blowing traction frequency convertor 10, cooling frequency converter 11, rewinding traction frequency convertor 12, rewinding frequency converter 13, the computing formula of frequency value F is as follows:
F＝V÷(π×d
1)×G÷1450×50，
In formula, V is the complete machine speed of service, and G is speed reducing ratio, d
1for the diameter that blowing frequency converter 9, blowing traction frequency convertor 10, cooling frequency converter 11, rewinding traction frequency convertor 12, rewinding frequency converter 13 are respective, π is pi;
Step 2, the frequency values conversion in step 1 obtained send to blowing frequency converter 9, blowing traction frequency convertor 10, cooling frequency converter 11, rewinding traction frequency convertor 12, rewinding frequency converter 13 respectively, and by the tension feedback of each frequency converter, real-time correction, ensure the stability of complete machine tension force, the integration separation position that tension force controls the integral separation algorithm PID taked is-8000 ~ 8000, the dead zone range arranging dead band algorithm is-50 ~ 50, complete machine speed of service V is passed to PD3 motion controller 1 by ethernet switch hub 7 simultaneously;
The complete machine speed of service V that PLC 8 in step 3, PD3 motion controller 1 real-time reception to step 2 is sent here, is converted to the angular speed V of satellite intaglio plate center encapsulate breast roll 2 by complete machine speed of service V
s, the angular speed V of satellite intaglio plate center encapsulate breast roll 2
scomputing formula as follows:
V
s＝V÷(π×d
2×60×360)，
In formula, V is the complete machine speed of service, and π is pi, d
2for the diameter of satellite intaglio plate center encapsulate breast roll 2, and by the angular speed V of satellite intaglio plate center encapsulate breast roll 2
ssend to the driver of satellite intaglio plate center encapsulate 2, thus drive satellite intaglio plate center encapsulate breast roll 2 to make with blowing frequency converter 9, blowing traction frequency convertor 10, cool frequency converter 11, rewinding traction frequency convertor 12, rewinding frequency converter 13 operate with identical linear velocity, ensure the uniformity of the complete machine speed of service, then satellite portion servo 3 of the same colour, satellite portion two look servo 4, satellite portion three look servo 5, satellite portion four look servo 6 are according to the diameter d of satellite intaglio plate center encapsulate breast roll 2
2the diameter d of servo roller is printed with satellite
3ratio, satellite intaglio plate center encapsulate breast roll 2 is set as the main shaft in camming movement, using the printing servo roller of servo 3 of the same colour for satellite portion, satellite portion two look servo 4, satellite portion three look servo 5, satellite portion four look servo 6 as in camming movement from axle, cam curve is set as 1:1 linear movement, and the molecule denominator ratio in electric cam function is set as d
2/ d
3, so just realize the angular speed uniform synchronization of satellite portion servo 3 of the same colour, satellite portion two look servo 4, satellite portion three look servo 5, satellite portion four look servo 6 four servo print roller.
After meeting above step, printing and the accurate chromatography of a standard just can achieve, but for taking encapsulate breast roll as the chromatography of roller of undertaking the printing of, even we also have last problem to need solution badly: the deformation problems of encapsulate breast roll, because the top layer material of satellite intaglio plate center encapsulate breast roll 2 is rubber, then will inevitably at different-diameter, different surface deformations is produced under the effect of different force of impression, namely the actual diameter of satellite intaglio plate center encapsulate breast roll 2 can change, for this problem, through repeatedly putting into practice, we take the method detecting the electric current of printing servo roller and the electric current of satellite intaglio plate center encapsulate breast roll 2 in real time, first following hypothesis is done:
The actual deformation ratio default deformation of satellite intaglio plate center encapsulate breast roll 2 is large, the linear velocity of namely printing servo roller in running is greater than the linear velocity of satellite intaglio plate center encapsulate breast roll 2, must cause under such circumstances in running, printing the active force that servo roller has dragging satellite intaglio plate center encapsulate breast roll 2, that is: the current value printing servo roller can be greater than normal operating current, and the current value of satellite intaglio plate center encapsulate breast roll 2 can be less than the normal current of self accordingly, otherwise it is also same, based on this, we are the electric current of Real-Time Monitoring printing servo roller and the electric current of satellite intaglio plate center encapsulate breast roll 2 in systems in which, unusual circumstance, namely the diameter of automatic satellite intaglio plate center encapsulate breast roll 2 is finely tuned, mate with the linear velocity of encapsulate breast roll to realize servo print roller when guaranteeing four printing servo roller angular speed stringent synchronization.
Above-mentioned be undertake the printing of in the overprinting method of roller with encapsulate breast roll, blowing frequency converter 9 is by controlling the running of blowing variable-frequency motor, and then control raw-material release, blowing traction frequency convertor 10 is by controlling the running of blowing traction variable-frequency motor, and then realize raw material to carry to print zone, the running of cooling frequency converter 11 controlled cooling model variable-frequency motor, realize cooling effect, rewinding traction frequency convertor 12 is by controlling rewinding traction variable-frequency motor, the product after printed is realized to carry to rewinding portion, drawing variable-frequency motor by rewinding drives collecting shaft by the large volume of product harvest after printed, whole printing process terminates.
The present invention is the overprinting method of roller of undertaking the printing of with encapsulate breast roll, take motion control and other independent control modes controlled, specifically control program can be adjusted for various piece in debug process, and without global revision, effectively prevent the appearance of situation of by mistake deleting, ensure that the stable and reliable readable of program, motion controller adopts the up-to-date motor function in motion control: camming movement function, the strict guarantee accurate seamless motion control of satellite-type intaglio process brush portion, ensure that printing effect and technique needs, improve the stability of equipment, accuracy is with intelligent, make full use of existing network communications technology simultaneously, by real-time ethernet switching technology, the quick exchange of Large Volume Data can be realized, make the real-time exchange of data between motion controller and PLC, the unified running coordinating each mechanism, not only achieve the accurate control of equipment, and improve operating efficiency, the present invention is of a tightly knit structure, portable good, fault-tolerant ability is strong, easy to operate, safe and reliable.
Claims (4)
1. be the overprinting method of roller of undertaking the printing of with encapsulate breast roll, it is characterized in that, based on following control system, control system concrete structure is: PLC (8) respectively with the blowing frequency converter (9) in blowing portion, the blowing traction frequency convertor (10) of blowing tractive unit, the cooling frequency converter (11) of cooling end, the rewinding traction frequency convertor (12) of rewinding tractive unit, the rewinding frequency converter (13) in rewinding portion connects, by controlling blowing part, blowing traction element, water-cooled part, rewinding traction element, running in order of rewinding part ensures that the printing work of complete machine carries out in order, PLC (8) is also connected with PD3 motion controller (1) by ethernet switch hub (7) simultaneously, and PD3 motion controller (1) is connected with again satellite intaglio plate center encapsulate breast roll (2) in turn, satellite portion servo of the same colour (3), satellite portion two look servo (4), satellite portion three look servo (5), satellite portion four look servo (6), to realize the accurate motion controlling satellite Printing Department,
Specifically implement according to following steps:
After step 1, complete machine start, first calculate current complete machine speed of service V by PLC (8) according to the acceleration time T, the maximum operational speed Vmax that preset, and then current complete machine speed of service V is scaled respectively the respective frequency values of blowing frequency converter (9), blowing traction frequency convertor (10), cooling frequency converter (11), rewinding traction frequency convertor (12), rewinding frequency converter (13);
Step 2, the frequency values conversion in step 1 obtained send to blowing frequency converter (9), blowing traction frequency convertor (10), cooling frequency converter (11), rewinding traction frequency convertor (12), rewinding frequency converter (13) respectively, and by the tension feedback of each frequency converter, real-time correction, ensure the stability of complete machine tension force, complete machine speed of service V is passed to PD3 motion controller (1) by ethernet switch hub (7) simultaneously;
The complete machine speed of service V that step 3, PD3 motion controller (1) real-time reception are sent here to the PLC (8) in described step 2, is converted to the angular speed V at satellite intaglio plate center encapsulate breast roll (2) by complete machine speed of service V
s, and by the angular speed V at satellite intaglio plate center encapsulate breast roll (2)
ssend to the driver at satellite intaglio plate center encapsulate (2), thus drive satellite intaglio plate center encapsulate breast roll (2) to make and blowing frequency converter (9), blowing traction frequency convertor (10), cooling frequency converter (11), rewinding traction frequency convertor (12), rewinding frequency converter (13) operates with identical linear velocity, ensure the uniformity of the complete machine speed of service, then satellite portion servo of the same colour (3), satellite portion two look servo (4), satellite portion three look servo (5), satellite portion four look servo (6) is according to the diameter d at satellite intaglio plate center encapsulate breast roll (2)
2the diameter d of servo roller is printed with satellite
3ratio, satellite intaglio plate center encapsulate breast roll (2) is set as the main shaft in camming movement, using the printing servo roller in servo (3) of the same colour for satellite portion, satellite portion two look servo (4), satellite portion three look servo (5), satellite portion four look servo (6) as in camming movement from axle, cam curve is set as 1:1 linear movement, and the molecule denominator ratio in electric cam function is set as d
2/ d
3, so just realize the angular speed uniform synchronization of satellite portion servo of the same colour (3), satellite portion two look servo (4), satellite portion three look servo (5), satellite portion four look servo (6) four servo print roller.
2. according to claim 1 a kind of be the overprinting method of roller of undertaking the printing of with encapsulate breast roll, it is characterized in that, in described step 1, the computing formula of complete machine speed of service V is as follows:
V＝V
0+V
max×t÷T，
In formula, V
0for the speed of service that PLC (8) presets, Vmax is the maximum operational speed that PLC (8) presets, and t is the time of setting, and T is the acceleration time that PLC (8) presets.
3. according to claim 1 a kind of be the overprinting method of roller of undertaking the printing of with encapsulate breast roll, it is characterized in that, the computing formula of step 1 medium frequency value F is as follows:
F＝V÷(π×d
1)×G÷1450×50，
In formula, V is the complete machine speed of service, and G is speed reducing ratio, d
1for the diameter that blowing frequency converter (9), blowing traction frequency convertor (10), cooling frequency converter (11), rewinding traction frequency convertor (12), rewinding frequency converter (13) are respective, π is pi.
4. according to claim 1 a kind of be the overprinting method of roller of undertaking the printing of with encapsulate breast roll, it is characterized in that, the angular speed V at satellite intaglio plate center encapsulate breast roll (2) in step 3
scomputing formula as follows:
V
s＝V÷(π×d
2×60×360)，
In formula, V is the complete machine speed of service, and π is pi, d
2for the diameter at satellite intaglio plate center encapsulate breast roll (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155355.2A CN104772998B (en) | 2015-04-02 | 2015-04-02 | A kind of overprinting method with encapsulated breast roll as printing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155355.2A CN104772998B (en) | 2015-04-02 | 2015-04-02 | A kind of overprinting method with encapsulated breast roll as printing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104772998A true CN104772998A (en) | 2015-07-15 |
| CN104772998B CN104772998B (en) | 2017-03-08 |
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ID=53614901
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|---|---|---|---|
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2015
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