Web press colour code registration device
The utility model relates to cigarette package printing technology, specifically a kind of web press colour code registration device.
In web printing process, due to the impact of the various factors such as the dilatation of paper tape and displacement, the bias of paper roll, the deflection of carry-over pinch rolls, printing can be made to produce longitudinally, horizontal registration error, thus affect the quality of printed matter.Therefore, need to carry out detecting to the alignment situation of printing machine and regulate.Different from sheet-fed offset press, roll-fed offset printing press cannot sample the artificial range estimation of Zhang Jinhang in process of production and detect, so roll-fed offset printing press must have automatically detect regulating system.
Existing printing adopts colour code alignment mode more, the time mainly occurred by benchmark colour code and actual colour code or the length of appearance, printing registration device controls supplementary roller or servomotor automatically adjusts by the algorithm of agreement, thus realizes the alignment of vertical and horizontal.But when printing scanning head runs into the color of None-identified, such as gloss oil and UV frosted ink etc., these ink or colourless, or the color printed is very light, or and paper color very close to time, it is not just very sensitive that photoelectronic registration recognition system reads colour code, and printing machine cannot to be checked colors target alignment mode to using the colour cell of this type of ink gloss oil to realize colour code.
Summary of the invention
For the above-mentioned deficiency of prior art, the utility model provides a kind of web press colour code registration device, and it realizes high-precision colour code by the simulation colour code of colour code dish and improvement and to check colors target alignment, ensures the printing quality of printable fabric.
A kind of web press colour code registration device, comprise forme axle, be arranged on the forme on forme axle, benchmark colour code is popped one's head in, actual colour code probe, one end of forme axle is fixedly connected with colour code dish, on described colour code dish perisporium, uniform intervals is provided with multiple stepped simulation colour code, the scanning end of benchmark colour code probe aims at the benchmark colour code of printable fabric, the scanning end of actual colour code probe aims at stepped simulation colour code, benchmark colour code probe is connected with the signal input part of controller with the signal output part of actual colour code probe, the signal output part of controller is connected with chromatography motor, chromatography motor is used for driving chromatography adjustment roller to move up and down to regulate overprint error by chromatography screw mandrel.
The utility model by fixedly mounting colour code dish to simulate the colour code input on printable fabric on forme axle, the stepped simulation colour code that colour code dish is arranged can produce accurate pulse signal when actual colour code scanning probe, such pulse signal is with " colour code is to colour code " pattern input control device, to be locked by the pulse signal scanning rear formation with benchmark colour code and namely control chromatography by controller and adjust roller and move up and down and realize regulating overprint error, thus realize high-precision colour code and to check colors target alignment, ensure the printing quality of printable fabric.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the utility model web press colour code registration device;
Fig. 2 is the structural representation of color table dish in the utility model.
In figure: 1-forme axle, 2-forme, 3-printable fabric, 4-benchmark colour code, 5-actual colour code, 6-benchmark colour code is popped one's head in, 7-colour code dish, 8-stepped simulation colour code, 9-actual colour code probe, 10-controller, 11-chromatography motor, 12-chromatography adjustment roller.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.
Please refer to Fig. 1, the utility model web press colour code registration device comprises forme axle 1, the forme 2 be arranged on forme axle 1, benchmark colour code probe 6, actual colour code probe 9, one end of forme axle 1 is fixedly connected with colour code dish 7, and described colour code dish 7 is fixed on forme axle 1 by expansion loop or nut.On described colour code dish 7 perisporium, uniform intervals is provided with multiple stepped simulation colour code 8, and in the present embodiment, stepped simulation colour code 8 has four steps raised step by step (as shown in Figure 2).The spacing of adjacent steps shape simulation colour code 8 should ensure two, and adjacent colour code can unlikely generation be misread or the phenomenon of pulse overlap by well identifying, such as 20-30mm.
Printable fabric 3 (such as tipping paper) is provided with benchmark colour code 4 and actual colour code 5, and benchmark colour code 4 is the colour code that prints of colour cell (colour cell l) above, and actual colour code 5 is reference cursors of colour cell, is also alignment foundation.The scanning end of benchmark colour code probe 6 aims at the benchmark colour code 4 of printable fabric 3, and the scanning end of actual colour code probe 9 aims at stepped simulation colour code 8.Benchmark colour code probe 6 is connected with the signal input part of controller 10 with the signal output part of actual colour code probe 9, the signal output part of controller 10 is connected with chromatography motor 11, chromatography motor 11 drives chromatography adjustment roller to move up and down by chromatography screw mandrel, thus regulates overprint error.
Utility model works principle: benchmark colour code probe 6 is for scanning benchmark colour code 4, actual colour code probe 9 is for scanning the stepped simulation colour code 8 on colour code dish 7, when the apparatus is in operation, the actual colour code probe 9 of scanning colour code dish 7 produces the pulse signal of a series of decile, because stepped simulation colour code 8 has multi-stage stairs, corresponding every grade of step can produce multiple pulse signal of Denging, can produce more accurate pulse signal after the stepped simulation colour code 8 of so actual colour code probe 9 scanning, and these pulse signals can correspond to the out of phase of forme 2.Such pulse signal is with " colour code is to colour code " pattern input control device 10, be actually the colour code input on simulation printable fabric 3, controller 10 meeting " thinks " that these signals are that on printable fabric, colour code produced, and so just " colour code is to colour code " pattern can be utilized to carry out alignment.
In the application of reality, the starting stage run at equipment is only needed to regulate colour cell 2 and reference colours target registration error to meet the requirements, benchmark colour code 4 will form the corresponding relation of pulse signal with stepped simulation colour code 8 on colour code dish 7, register control can be realized by after two pulse signal lockings, namely controller 10 sends control instruction to chromatography motor 11, chromatography motor 11 drives chromatography screw mandrel to rotate, and the chromatography adjustment roller that rotarily drives of chromatography screw mandrel moves up and down, thus regulates overprint error.