• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1534770 Facsimile RUDOLF HELL GmbH 25 March 1976 [25 March 1975] 12140/76 Heading H4F A stroboscopic tiring system for setting the commencement and termination of signal pulse trains controlling the scanning and engraving of respective cylinders 1 and 2, Fig. 1, in relationship to the rotation thereof, is described. A reference mark 53 on scanning cylinder 1 causes, upon passage beneath a detector 49, a "begin scan" pulse to be applied to the input of a discretely variable delay 56. The delayed pulse sets a flip-flop 59 which enables AND gate 26, to allow scanning pulses T3 to pass. The delayed pulse is simultaneously applied to a firing circuit 50 which causes a lamp 51 to flash. A microscope incorporating a reflex system views the area of the scanning cylinder immediately beneath scanning detector 15. Delay 56 is adjusted incrementally until at the time of each "flash" of lamp 51 the leading edge 47 of an original mounted for scanning, is exactly beneath detector 15. Firing circuit 50 is described in more detail, W.R.T., Figs. 2 and 4 (not shown). Delay 56 is described in more detail W.R.T., Fig. 3 (not shown). When an insert is to be engraved on a cylinder already partially engraved, a similar firing circuit (50<SP>1</SP>), Fig. 5 (not shown), and a similar discretely variable delay (117) are additionally employed for ensuring correct registration on the engraving cylinder. To this end a second microscopic and stroboscope (51<SP>1</SP>) are associated with the engraving mechanism, In order to ensure the correct distribution of scanned points along each scan line of the original, the "begin scan" pulse is further delayed by a line scan period and applied to the firing circuit at the end of a scan line. The scanning timing pulse frequency is adjusted whilst monitoring the strobed light to bring the final scan point into correct registration with the trailing edge of the original, Fig 6 (not shown). This requires the implementations of fine adjustment means to the scanning frequency generator which are comprised by fine level frequency dividers of the type described W.R.T., Figs. 7 and 8 (not shown). Accurate registration of colour separations is enabled by the system.
    公开号:SU1028239A3
    申请号:SU762337656
    申请日:1976-03-24
    公开日:1983-07-07
    发明作者:Дельвес Юрген；Херфорт Дитер
    申请人:Др.Инж.Рудольф Хелль Гмбх (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a polygraph, in particular, to an engraving machine. A device for the engraving of rasterized printing plates, containing a cylinder for an original of an image, a reading organ connected to an analog-to-digital converter, recording of pouches and reading address counters, a memory unit connected to digital-to-digital converters, is known. plate cylinder, a generator of reading clock pulses, connected to a reading address counter and an engraving machine, a generator of recording clock pulses, connected to a recording a A counter with a counter and an analog-to-digital converter, cylinder drives, reading and engraving organics, and a sensor for circumferential pulses of a cylinder for an original til. A disadvantage of this device is the low accuracy of setting the beginning and end of the places of reading the original and image engraving, which affects the quality of engraving. The purpose of the invention is to improve the quality of engraving. This goal is achieved in that a device for engraving screened printing plates containing a cylinder for an original image, a reading organ connected to an analog-to-digital converter, recording and reading address counters, a memory block connected to analog-to-digital and digital-analog converters , plate cylinder, read-clock generator, connected to a reading address counter and an engraving body, clock recorder recorded in a clock, connected to a record addressable counter and analog-to-digital converters, cylinder drives, reading and engraving organs, and a circumferential sensor ID-: cylinder pulses for the original, has flash lamps installed at the original cylinder and the cylinder for the original, their ignition units and adjustable " lamp delay units for switching on lamp-flashes; in this case, the inputs of the adjustable signal delay blocks are connected to the sensor output of circumferential pulses, and their outputs are connected to the main input ignition circuit and to the generator inputs schityg amplification of the recording clock momentum; ; The ignition unit is connected to the corresponding flash lamps, the output of the recording address counter is connected to the switching off input of the generator of recording clock pulses and the auxiliary input of the cylinder flash lamp for the original, and the generator of recording clock pulses is configured to adjust its frequency pulses. Each delay unit contains a reversible counter, a coding element and an electronic switch. In addition, the ignition unit contains a trigger, an AND circuit, a frequency divider and a monostable relaxation cascade, the input is connected to the output of the AND circuit, and the output is from the trigger output, with one input connected to the trigger output and the second input to the frequency divider. FIG. 1 shows a block diagram of the device; in fig. 2 - diagram of the delay unit; in fig. 3 is a diagram of the ignition unit, without a frequency divider. The device for engraving contains a cylinder for the original 1, Plate cylinder 2, motor 3, reading body 4, analog-digital converter 5, memory block b, recording address counter 7, readout address counter 8 / digital-analog converter 9, amplifier 10 , the engraving body 11, the generator of recording clock pulses 12, the generator of reading clock pulses 13, the sensor of circumferential pulses 14, delay blocks 15 and 16, blocks ignite 17 and 18, flash lamps 19 and 20, a circumferential mark on the cylinder for the original 21. FIG. 1 shows additional, as follows, the operation of the device: elements of the initial 22 and final 23 marks of the image line, the initial mark of the engraved line 24, off -25 and including 26 generator inputs of recording clock pulses. The delay unit contains a reversible counter 27, a subtracting counter 28, encoding element 29, an electronic switch consisting of trigger 30 and AND 31 circuitry. The ignition unit (without frequency divider) contains trigger 32, And 33 circuit, monostable relaxation cascade multivibrator.) 34 and the ignition circuit. Device; works as follows about &amp; at once. 1 The cylinder for the original 1 and the plate cylinder 2 are connected to each other and jointly driven by the engine 3. On the cylinder 1 there is an original image that is read bitwise (pointwise) and line by line with an optoelectronic reading body 4. The reading body 4 is equipped with an optical A viewfinder, for example, a not shown mirror device (non parallax clinking device) consisting of a viewing tube with a frosted glass screen and a deflecting mirror. On the matte screen there is the first base mark, stationary with respect to the rotating cylinder 1 which determines the position of the reading body 4 with respect to the cylinder 1. In the first base mark made in the form of a ring, the raster point of the image is viewed, which is at that instant on the optical the axis of the reading unit 4. The image signal obtained by reading each point is converted in the analog-digital converter 5 into a digital code. Analog-to-digital converter 5 is connected to a PS1m-TI unit 6, in which a digital code records in advance the number of raster points and each scan line. The information outputs of the memory storage unit are connected to the digits of the analog converter 9, in which the read digital code is again converted into an analog image signal. The analog signal to the image is amplified in the engraving amplifier 10 and combined with a raster signal. Formed by superimposing an image signal and a signal of a raster of engraving, it controls an engraving body 11, for example, an electromagnetic engraving device with an engraving shtihel as a cutting tool. The engraving body 11 engraves the plate cylinder 2 in the forward cells, which are located on the line to be engraved. The engraving unit 11 also has an optical sight, not shown, with a second basic mark stationary with respect to the rotating form 1 of cylinder 2, which determines the position along the circumference of the engraving unit 11 to the form cylinder 2. Under the second, basic mark there is an engraving at the moment the train The counting body 4 and the gravure bodies 11 move axially with respect to the cylinders. During the intermediate digital code memory, the recorded addresses of the digital memory block 6 from the write-down counter 7 and the corresponding readable addresses from the reading address counter 8 are called. To control the reading of the original, the analog-to-digital conversion of the image signal and the process of writing the digital code in the digital memory block. 6 is a sequence of TD clock recording pulses. The sequence T of clock pulses is obtained in the generator 12 of recording clock pulses, whose output is connected to the input of the recording address counter 7 and the analog-to-digital converter 5 .. The desired beginning of the line is marked. the initial mark 22, and the desired end of the read line - the end mark 23 on the cylinder 1 (for the original image). A scan (reading) in each line of the original image is started by VCW. The generator 12 of recording clock pulses or clock pulse TD sequence with the signal of the start sweep signal and is interrupted by switching off with. signal end of the sweep. To control the process of outputting a digital code from block b to receive a raster signal, use the "" sequence of T clock patterns for engraving. The sequence of T. clock pulses for rpasKpOBKiT p 5 is emitted in the generator 13 of the reading clock pulses, which is connected to the input for the clock pulses of the reading address counter 8 and the amplifier 10 for engraving. The desired start of the engraving line is marked with an additional initial mark of 24 on the plate it 2. The engraving in each line of the plate cylinder 2 begins by switching on the generator of 13 clock pulses or the sequence T. using the signal to start the engraving. The sweep start signal is generated by delaying the circumferential signal in the adjustable first block of -15 from the shift, whose output is connected to the input 26 of the generator 12 clock pulses. Circular impulse occurs by scoring a mark of 21 per qilin. Dre 1 (for the original image) using a peripheral pulse 14 which is connected to the input of the first delay block 15. The end scan signal is obtained by recording counter 7. In the recording counter, counter 7 is taken into account for each scan line, respectively, such a number clock pulses Td, how many raster points should be located on one line of the image. With the latter taken into account. clock pulse TD, the recording address counter 7 outputs a scanning sweep clock, which is supplied to the switching off input 25 of the clock 12 clock pulses. .. The engraving start signal is generated by delaying a circumferential pulse in an adjustable second ederc block J6, whose input is connected to the sensor of circumferential pulses 14, and the output is connected to the switching input of the clock generator 13. The first observation device / which is connected to cylinder 1 the flashes 19 and the first ignition unit 17, and the second device -.
    The watch, which is connected to the plate cylinder 2, consists of another flash lamp 20 and a second ignition unit 18, flash lamp 19 is directed so that it illuminates the origin of the image, which lies under the reading, khtsim body 4, the flash lamp 20 illuminates the part of the plate cylinder 2 lying under the engraved body 11
    The first input of the ignition circuit 17 is connected to the output of the first delay unit 15, and the second input of the ignition circuit 17 is connected to the output of the recording address counter 7, so that the ignition circuit 17 is triggered by the start sweep signal and the end sweep signal, and the flash lamp 19, respectively causes a light pulse when these signals appear.
    The input of the ignition circuit 18 is connected to the output of the second delay unit 16, so that the ignition circuit 18 is triggered by an engraving signal and a flash lamp 20, respectively, pulses when an engraving signal appears. To adjust the exact start of the sweep of the original image, the circumferential pulse is delayed in the first delay block 15 until the moment at which the stationary mark of the reading body 4 coincides, the initial mark 22 on cylinder 1 and the start scan signal or the first light pulse of the flash lamp 19. Due to this, that during the interval between the pulses of the first clock of the sequence T of the recording clock pulses, the beginning of the scanning line and, thus, the first readable raster point of each turn This line is under the reading body.
    To set the end of the sweep on the original sample, the frequency of the clock pulse Td sequence in the generator 12 clock pulses is changed so that the stationary mark of the optical sighting device of the reading body 4, the end mark 23 on the cylinder 2 and the read end signal or the second light pulse of the flash lamp 19. In this way, the length of the read line can be very precisely adjusted to the circumferential length of the plate cylinder 2, so that precise seamless engraving becomes possible.
    To adjust the start of engraving on the plate 2, the start of engraving on the second block 16 of the delay is delayed until the point at which the stationary mark of the optical reticle of the engraving unit 11 coincides in time, the start mark 24 on the form cylinder 2 and the signal of the start of engraving or the light pulse of the lamp flashes 20.
    Due to the possibility of shifting the start of engraving with respect to the plate cylinder, when the plate cylinder is pregraded, inaccurate angular positions of the cylinders to each other, such as when changing the cylinder, can be compensated, which improves the quality of engraving.
    权利要求:
    Claims (3)
    [1]
    1. DEVICE FOR ENGRAVING RASTRATION * OF PRINT FORMS, containing a cylinder for the original image, a reading organ connected to an analog-to-digital converter, recording and reading address counters, a memory unit connected to analog-to-digital and digital-to-analog converters, a plate cylinder, a clock read generator connected to a read address counter and an engraving body, a clock read generator connected to a write address counter com and analog-to-digital converter, drives of cylinders, reading and engraving organs and a sensor of circumferential impulses of the cylinder for the original, but it is different from the fact that, in order to improve the quality of engraving, it has flash lamps installed on the shaped cylinder and the cylinder for the original, the ignition blocks are adjustable delay units for the lamp-flash turn-on signals, while the inputs of the adjustable signal delay units are connected to the output of the circular pulse sensor, and their outputs are connected to the main inputs of the circuits ignition and to the switching on, inputs of the generators of reading and recording clock pulses, the outputs of the ignition blocks are connected to the corresponding lamps in the lists, the output of the recording address counter is connected to the switching input of the generator of recording clock pulses and the additional input of the ignition block of the cylinder flash lamp for the original, and a generator of recording clock pulses is configured to control the frequency of its pulses.
    [2]
    2. The device pop. 1, characterized in that each delay unit contains a reversible counter, subtracting the counter ', an encoding element and an electronic switch.
    [3]
    3. The device according to π. 1, characterized in that the ignition unit contains a trigger, circuit I, a frequency divider and a monostable relaxation stage, the input of which is connected to the output of circuit And, and the output with the output of the trigger, with one input
    KZ 00 KZ 00
    Cp of the And circuit is connected to the trigger output, and the second input is connected to the frequency divider.
    ra for the original, and the generator of the recording clock pulses is configured to control the frequency of its pulses.
    Each delay unit contains a reversible counter, an encoding element and an electronic switch.
    In addition, the ignition unit contains a trigger, circuit I, a frequency divider and a monostable relaxation stage, the input of which is connected to the output of circuit I, and the output is connected to the output of the trigger, with one input connected to the output of the trigger and the second input to the frequency divider.
    In FIG. 1 shows a block diagram of a device; in FIG. 2 is a diagram of a delay unit; in FIG. 3 - diagram of the ignition unit, without a frequency divider.
    The engraving device comprises a cylinder for the original 1, a plate cylinder 2, an engine 3, a reading organ 4, an analog-to-digital converter 5, a memory unit 6 that records an address counter 7, reads an address counter 8 / digital-to-analog converter 9, an amplifier 10, an engraving body 11, a generator of recording clock pulses 12, a generator of reading clock pulses 13, a sensor of district pulses 14, delay units 15 and 16, ignition blocks 17 and 18, flash lamps 19 and 20, a circumferential mark on the cylinder for the original 21.
    In FIG. 1 additional elements explaining the operation of the device are indicated: initial 22 and final 23 marks of the image line, initial mark of the engraved line 24, turning off -25 and including 26 inputs of the generator of recording clocks.
    The delay unit contains a reversible counter 27, subtracting the counter 28, the coding element 29, an electronic switch, consisting of a trigger 30 and circuit And 31.
    The ignition unit (without a frequency divider) contains a trigger 32, a circuit And 33, a monostable relaxation cascade (multivibrator) 34 and an ignition circuit.
    Device; operates as follows.
    ι
    The cylinder for the original 1 and the plate cylinder 2 are connected to each other and jointly driven by the engine 3. On the cylinder 1 is attached the original image, which is read raster (dot-wise) 1 and line by line optoelectronic reading organ 4. The reading organ 4 is equipped with an optical sight, for example an unshown mirror device (non-parallax ripping device) consisting of a viewing tube with a frosted glass screen and a deflecting grain
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1028239A3|1983-07-07|Machine for engraving dot screen plates
    SU1463125A3|1989-02-28|Method and apparatus for manufacturing screen printing plates
    US3878559A|1975-04-15|Colour scanners for image reproduction
    US3922484A|1975-11-25|Method for the rastered reproduction of colored continuous tone images of single or multicolor originals
    GB1532704A|1978-11-22|Method of and apparatus for producing printing surfaces
    US3856985A|1974-12-24|Ultrasonic diagnostic apparatus
    US3956583A|1976-05-11|Image reproduction systems providing reproduction at a finer pitch than input scanning
    US3997828A|1976-12-14|Copy-repeater arrangement and method of adjusting the same
    GB1568113A|1980-05-29|Method of picture reproduction with variable reproduction
    US4567506A|1986-01-28|Monitoring apparatus for color printing
    US4174527A|1979-11-13|Method for locally precisely setting the start and end of reproduction in an engraving apparatus
    DK151648B|1987-12-21|PROCEDURE FOR PROCESSING RADAR SIGNALS AND APPARATUS FOR EXERCISING THE PROCEDURE
    US3987431A|1976-10-19|Device for analogous representation of alpha-numerical signs digitalized in columns
    US3697683A|1972-10-10|Facsimile scan line response equalization system
    US3422216A|1969-01-14|Photo reproduction size variation
    JPS5689188A|1981-07-20|Time base correcting device
    JP2796091B2|1998-09-10|Output image position correction device
    JPS6113464A|1986-01-21|Magnetic recording and reproducing device
    US3851170A|1974-11-26|Device for simultaneously displaying the densities of basic colors of a color original
    US3034343A|1962-05-15|Engine analyzer with self-synchronizing sweep
    SU1564736A1|1990-05-15|Device for shaping image signal
    JPS6469188A|1989-03-15|Adjustment method for color image display device
    SU1659878A1|1991-06-30|Stroboscope converter
    JPH0380682A|1991-04-05|Trapezoidal distortion correcting circuit for image projector using liquid crystal light valve
    SU995369A1|1983-02-07|Device for spatial correction of facsimile apparatus writing electrodes
    同族专利:
    公开号 | 公开日
    NL168170C|1982-03-16|
    US4057838A|1977-11-08|
    NL168170B|1981-10-16|
    JPS51122309A|1976-10-26|
    JPS5713184B2|1982-03-16|
    SU1050555A3|1983-10-23|
    DE2513042A1|1976-09-30|
    NL7603090A|1976-09-28|
    DE2513042C3|1981-07-30|
    GB1534770A|1978-12-06|
    CH605132A5|1978-09-29|
    DE2513042B2|1980-03-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2141973A|1937-03-04|1938-12-27|William G H Finch|Method of and apparatus for facsimile signaling|
    GB904661A|1958-05-14|1962-08-29|Emi Ltd|Improvements in or relating to the production of continuous patterns|
    GB1095452A|1963-12-27|1900-01-01|
    NL137759C|1969-04-17|
    JPS5226413B2|1971-08-17|1977-07-14|DE2726329C2|1976-06-11|1987-12-03|Zed Instruments Ltd., Hersham, Surrey, Gb|
    JPS5392142A|1977-01-24|1978-08-12|Koutarou Honda|Compiling mechanism in electric discharge destruction type copier|
    JPS5395048A|1977-01-31|1978-08-19|Koutarou Honda|Compiling mechanism in electric discharge destruction type copier|
    DE2705993C2|1977-02-12|1982-11-25|Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel|Method for the precise setting of the start of scanning or recording of an original in electronic printing form manufacture|
    JPS6359304B2|1979-04-20|1988-11-18|
    JPH028513B2|1979-10-02|1990-02-26|Canon Kk|
    JPS56117659A|1980-02-20|1981-09-16|Hidenori Kiya|Discharge piercing-type plate making machine|
    US4422101A|1980-07-30|1983-12-20|Toppan Printing Co., Ltd.|Electronic cylinder making method|
    JPS6354183B2|1980-10-09|1988-10-27|Hitachi Ltd|
    DE3240654A1|1982-11-04|1984-05-10|Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel|METHOD FOR RE-ENGRAVING PRINT CYLINDERS|
    JPS6150725A|1984-08-15|1986-03-13|Hitachi Ltd|Work table for plating correction|
    JP2757494B2|1989-09-29|1998-05-25|ブラザー工業株式会社|Scanning exposure equipment|
    JPH03158066A|1989-11-15|1991-07-08|Fujitsu Ltd|Method for adjusting original read position|
    DE4038183C2|1990-11-30|1994-10-20|Hell Ag Linotype|Method and device for aligning an electron beam relative to a reference object|
    US5515182A|1992-08-31|1996-05-07|Howtek, Inc.|Rotary scanner|
    US5737090A|1993-02-25|1998-04-07|Ohio Electronic Engravers, Inc.|System and method for focusing, imaging and measuring areas on a workpiece engraved by an engraver|
    US5583647A|1993-05-05|1996-12-10|Ohio Electronic Engravers, Inc.|Cylinder support apparatus and method for use in an engraver|
    US5424846A|1993-05-05|1995-06-13|Ohio Electronic Engravers, Inc.|Cylinder support apparatus and method for use in an engraver|
    US5661565A|1993-05-05|1997-08-26|Ohio Electronic Engravers, Inc.|Method and apparatus for aligning a cylinder in an engraver|
    US5831745A|1995-01-19|1998-11-03|Dainippon Screen Mfg. Co., Ltd.|Gravure engraving system using two signals out of phase with each other for engraving a plurality of cells on a surface of a gravure cylinder|
    US5868075A|1997-02-26|1999-02-09|Presstek, Inc.|Method and apparatus for imaging a seamless print medium|
    DE19710005A1|1997-03-12|1998-09-17|Heidelberger Druckmasch Ag|Method and device for engraving printing cylinders|
    DE19814939A1|1998-04-03|1999-10-07|Heidelberger Druckmasch Ag|Method of positioning engraving elements|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2513042A|DE2513042C3|1975-03-25|1975-03-25|Method for the precise setting of the start and end of the reproduction|
    [返回顶部]