• 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:
    1532704 Facsimile DR-ING RUDOLF HELL GmbH 27 Feb 1976 [28 Feb 1975] 07918/76 Heading H4F Printing cylinders 2, Fig. 1, of various diameters are engraved for subsequent production of half tone facsimiles, by apparatus comprising a permanent scanning drum I having a diameter greater than that of the largest printing cylinder to be employed, and on which originals 12 of varying sizes are mounted for "opto electronic" scanning. The drum 1 and cylinder 2 are rigidly coupled and driven by a synchronous motor 4 under the control of a master clock To, 9. Scanning and engraving are performed respectively along open and closed circumferential lines with intermittent advancement of scanning head 15 and engraving tool 56 between lines. Scanning and engraving are performed under the control of clocks T 3 and T 4 respectively derived from the master clock by dividers 40 and 57 and incorporates inter line phase reversal 46 and 61 to generate a standard gravure screen pattern. Successive line scans of original 12 are initiated at reference line 70; in response to a delayed signal derived from optoelectric monitoring of a reference mark 73. A user operable control 88 defines the circumferential extent of the line scan which is always less than the total drum circumference. During axial advancement of the engraving tool 56, cylinder 2 continues to rotate so that engraving of each line does not generally commence at any refence circumferential position. This results in the need for picture line storage means 28 incorporating specialized data handling control. The data handling requirements are further complicated by the fact that the line engraving period is slightly in excess of the period of rotation of the cylinder. Storage means 28 incorporates two line stores operated alternately and oppositely in loading and unloading modes. An indexing signal, indicative of the cylinder's instantaneous angular disposition, is received by store 28 and converted into an address relating to the stored data location of the requisite commencing element to be engraved. After several revolutions the compounded delay between engraving and scanning exceeds one revolution period. In this case it is necessary (in order to avoid attempting to operate one of the line stores simultaneously in the load and unload mode) to defer subsequent line scanning for one revolution period. This delay occurs since advancement of the scanning head 15 takes place while that part of the drum 1 not carrying the original 12 passes thereby, whereas engraving of cylinder 2 is interrupted after each complete closed line had been engraved. In another embodiment, Fig. 5 (not shown) provision is made for engraving a plurality of "repeats" in the circumferential direction (i.e. along a line). In this case each line of the original is still scanned in one revolution of drum 1 and in the related engraving revolution of cylinder 2 the stored data is read out for engraving as often as required. Axial pattern repetition is achieved by rescanning of the original. In another embodiment, Fig. 6 (not shown) a plurality of picture originals are mounted axially on the scanning drum from which simultaneous engraving of a common printing cylinder with the various images is derived. The engraving tool may comprise an electron beam or a laser.
    公开号:SU1087064A3
    申请号:SU762406160
    申请日:1976-10-05
    公开日:1984-04-15
    发明作者:Баар Вальтер；Дельвес Юргер
    申请人:Рудольф Хелль Гмбх (Фирма)；
    IPC主号:
    专利说明:

    11 The invention relates to printing, in particular to engraving processes for the manufacture of printing plates. A known method of producing printed forms, according to which by means of an analyzing element, a line-by-line ANALYSIS and scanning of the original image located on the original cylinder is performed, the received signals are converted into a digital code, written digital code to a memory block, reading a digital code from a memory block, converting a digital code to analog signals, and line-by-line engraving using New cell cutter on the miter cylinder ll. The disadvantage of this method is that it is necessary to wait on the beginning of a new line after moving the engraving element and the previous line to a new line, i.e., an additional idle turn of the cylinder is carried out, which leads to a large loss of time. The purpose of the invention is to reduce the time of manufacture of forms. The goal is achieved in that the engraving of each subsequent line begins with a cell, the digital code of which, by the time of the end of the trip, reads the engraving element from the drive, and finishes. After reading the remaining digital codes of this line, including the codes of the initial part of the line. The reading of the line and the movement of the analyzing element to the next line is carried out during the rotation of the cylinder. The drawing shows a schematic diagram of a device for the production of screened plates. The cylinder 1 of the original of the readout and the print cylinder 2 are driven by the engine 2 in the direction of line 4. The diameters of the cylinders 1 and 2 have different values. On Jigind 1, an original 5 is pulled, which i is read by an electron-optical reading body 6 to obtain an image signal according to a point principle. The reading unit 6 can be moved by means of the spigot 7 and the engine 8 parallel to the cylinder 1 of the original in the direction of the arrow 9. The engine 8 4 is controlled by the first feed device 10. For intermediate storage of the image signal, a device 115 is provided consisting of a digital storage unit 12 connected to the address writing inputs 13 for recalling accumulated addresses during their recording, a recording address counter 14 and a viewing address counter 15 connected with the viewing address inputs 16 for recalling accumulated addresses when viewing them. The writing address counter 14 is controlled by the scanning sequence sensor 17, and the viewing address counter 15 is controlled by the engraving sequence sensor 18. The sensors 17 and 18 of the clock sequence are provided with appropriate clock generators in which these clock cycles are generated or energized and which are supplied by the address counters through the synchronization stage 19. The start-up input 20 of the synchronization stage 19 is connected to a pulse sensor 21 on the cylinder 1 of the original, and the start-up input 22 is connected to the output 23 of the write counter of the 14 address address. The reading unit 6 is through an amplifier 24 and an analog converter 25; the digit is connected to the input 26 of the data of the digital storage device 12 for converting analog image signals to digital values. Data outputs 27 of digital storage device 12 through digit converter 28 — an analog and engraving amplifier 29 are connected to an engraving body 30, for example, an engraving tool. Cell engraving unit 30, cell by scan, performs an engraving on the outer surface of the printing cylinder 2. To form a cell, a raster signal Tp in the engraving amplifier 29 received from the engraving sensor 18 is superimposed on the image. An electron beam or laser engraving body may be used in place of the electromagnetic engraving body. The engraving unit 30 is driven by the spindle 31 and the electric motor 32 in the direction of the arrow 9. The electric motor 32 is controlled by a device 33 providing a feed step and having an enable input 34 and a signal output 35. The start of the feed step to the enable input 34 begins the forward movement of the engraving unit 30. After the feed step is completed, a signal is given at the output of the signal 35 The end of the feed step.
    By combining the movement of the feeding step of the engraving body 30 with the accumulation of the sweep, a minimum time of engraving is provided.
    For this purpose, a control fixture 36 is provided, connected to the inputs of the 16 viewing addresses of the digital storage unit 12. The control fixture 36 supplies a signal for the start of the feed step to the output 37 of a signal, which is transmitted to the feed step adjuster 33.
    The feed pitch attachment 33 provides a signal. The end of the feed pitch transmitted to the input 38 of the control fixture 36.
     .
    The device operates under the following conditions.
    The translational movement of the reading body 6 and the engraving body 30 is carried out in steps. The reading unit 6, after reading the line 39 of the original 5, the length of which is equal to the length of the original along the circumference, provides the step of feeding to the next line 39. The engraving body 30, after finishing the engraving, has closed the engraving line 40, the length of which is equal to the circumference of the printing cylinder 2, moves one feed step in the direction of the arrow 9.
    The sensor frequency 18 strokes of the engraving is set in such a way that over each closed engraving line 40 of the printing cylinder 2, an integer Z is engraved next to each other without breaking the cells, due to which the condition of seamless engraving is fulfilled.
    The frequency of read cycles Td is chosen so that on each scanned line 39 of Original 1, despite the different diameters of cylinders 1 and 2, the number 2 is also visible. The image points are equal to the number of points in line 40 of the engraving.
    The counter of the 14 addresses and the browsing counter of the 15 addresses are also adjusted to this quantity CTBoZ.
    To eliminate the dead zone on the printing cylinder 2, the circumference of cylinder 1 is longer than the length of reading line 39 at the longest point of the original 5 by the amount required by the time required to ensure the feed step of the reading body, and the circumference of the printing cylinder 2 is at least the same value cylinder circumference 1.
    Due to these ratios, the read feed step is always performed at such time intervals when no image signals are required, due to which a dead zone does not form on the printing cylinder. Due to the absence of a dead zone on the printing cylinder 2, the entire circumference is used, so that subsequent printing eliminates paper losses and ensures seamless engraving.
    The device works as follows.
    The first image point of the read line 39 should be read from the top edge 41, and the last point Z should be read at the bottom edge 42 of the original 5.
    If the reading body 6, due to the relative movement with respect to the original 5, is located just under the top edge 41, then the pulse sensor 21, by scanning the mark 43, gives the order Start of reading, after which the reading of the first image point begins.
    Order A read start sensor of 17 read cycles is fed to synchronization level 19, so that individual synchronization steps are sent to the writing counter of address 14 and the converter 25. The image signal of the first image point is converted to the first digital image code stored in the zero address of the digital storage device 12 .
    Then the next points of the image, read by line 39, are successively scanned, the corresponding digital indicators of the image are stored in the memory at increasing addresses in digital storage 12, as the writing counter 14 of addresses cyclically or in a circle polls all addresses. When reading the last image point Z at the bottom edge 42, the address recording counter 14 selects the address Z-1, under which the digital index of the last image point Z. of the read line 39 is deposited. Since the address recording counter 14 is programmed for the number Z, after 2 ticks, it is set again to a sequence of read ticks, TD, whereupon the zero address is again called. At the same time, at the output of a 14-writing recorder's signal, an End of Read order is issued, which delays the sequence of read cycles to the Start of Read order. At this point, the Z digital readings of the read line 39 are already deferred in the digital storage device 12 and the readout body 6 executes the step of feeding to the next read line 39. Then, the reading of line 39 and the laying of the digital indicators of the image into the second compartment of the digital accumulator 12 begin. With the first order, the Start of reading turns on the sensor of the sequence of etching steps T and is connected with the 15-address reading counter. The reading address counter 15 first calls the addresses 0- (E 1) of digital storage device 12, among which are stored in the memory digital display indicators of the first read line 39. These digital readings are captured and converted into analogue image signal by converting the bodies. The engraving body 30 engraves the% cells in the first line 40 of the engraving of the printing cylinder 2. The 15 address counter is also programmed in Z in the same way, so it performs Z with the new one and starts a new reference cycle. After engraving the first engraving line 40, the control fixture 36 at the signal output 37 issues an order. The beginning of the feed step of the fixture 33 is to provide a feed step of this to idle chi from the engraving tool A of the printing cylinder. In rement. The engraving of the chopper, and as a result, the essential body 30 is performed a step of shortening the length of the load in the direction of the arrow 9 to the next line 40 of the engraving. After this feeding step, the fixture 33 issues the command End of the feeding step, which is fed to the input 38 of the signals of the control fixture 36. During the submission step, the counter of 15 addresses continues its counting and by the time of the command End of the submission step, it can just dial address A, which is marked. Immediately after giving the command. The end of the feeding step begins the engraving of the next line. Before that, the digital cylinder of the image of which is stored under address A, and in that place of the printing cylinder 2, which at the time of the command issuing. The end of the feeding step is under the engraving body 30. For this reason, the digital indicators of the image are first viewed at addresses A - (Z-1) and engraving the corresponding cells. To end the engraving of the second line 40, those cells that were not executed during the feeding step of the engraving tool should be engraved. To do this, the O-CA-l addresses are called again), the stored digital indicators of the image are scanned and the corresponding cells are heated until the queue again reaches the address A. At this point, the engraving of line 40 is completely finished, the control device 36 again gives the command the beginning of the step of feeding the engraving body 30. These processes are repeated accordingly for the next line of engraving. This is a functional combination of intermediate data storage in the sig- nal memory. Image processing and feed pitch control from the engraving tool side reduces printing time. Engraving may continue immediately after the end of the delivery step of the engraving organ, with
    权利要求:
    Claims (2)
    [1]
    1. METHOD FOR PRODUCING RADIATED PRINT FORMS, including line-by-line reading of the original image located on the cylinder by means of an analyzing element, converting the received signals to a digital code, writing a digital code to a drive, reading a digital code from a drive, converting a digital code to analog signals, line-by-line engraving of cells on the printing cylinder with the help of an engraving element and the step-by-step movement of the analyzing and engraving elements between the lines, I mean that, in order to reduce the time for manufacturing molds, the engraving of each subsequent line starts with a cell, the digital code of which is read from the drive by the end of the feed step of the engraving element, and ends after reading the remaining digital codes of this line, <g including the code initial part of the line.
    [2]
    2. The way yao π. 1, characterized in that the reading of the line and the movement of the analyzing element to the next line is performed during rotation of the cylinder.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1087064A3|1984-04-15|Method for making screen printing forms
    US4163605A|1979-08-07|Method of picture reproduction with variable reproduction scale
    US4325086A|1982-04-13|Recording device
    CN1328900C|2007-07-25|Image fetch device
    US4605957A|1986-08-12|Machine and method for picture reproduction with steadily variable reproduction scale
    US3541245A|1970-11-17|Electrooptical drum scanners for image reproduction permitting variable image enlargement or reduction
    SU938735A3|1982-06-23|Method for converting digital data signal for producing raster colour-set in colour printing
    CN101404712B|2012-08-22|Image reading apparatus and method
    GB2175170A|1986-11-19|Image reading device
    US4174527A|1979-11-13|Method for locally precisely setting the start and end of reproduction in an engraving apparatus
    US4454537A|1984-06-12|Method for reproducing a color picture for use in a picture reproducing machine
    US4352128A|1982-09-28|Combination electrostatic copying machine and facsimile transceiver
    US3944726A|1976-03-16|Apparatus for making printing masters
    US6608301B2|2003-08-19|Single step multi-section exposure scanning method
    US4388653A|1983-06-14|Method for controlling writing timings of picture signals to be stored in a memory
    US4338637A|1982-07-06|Variable scanning device
    US4755813A|1988-07-05|Screening circuit for screening image pixels
    US5726776A|1998-03-10|Method and arrangement for synchronizing the image recordings of monochrome and color recordings by means of light-sensitive sensors
    EP0012811A1|1980-07-09|Apparatus for producing hard copy of an image
    JP3046170B2|2000-05-29|CCD line sensor drive
    JP2582058B2|1997-02-19|Image data scaling controller
    JP2589415B2|1997-03-12|Image input device
    JP2589416B2|1997-03-12|Image input device
    JP2968819B2|1999-11-02|Image processing device
    JPH089143A|1996-01-12|Image reader
    同族专利:
    公开号 | 公开日
    JPS51111101A|1976-10-01|
    JPS5736860B2|1982-08-06|
    GB1532704A|1978-11-22|
    DE2508734B1|1976-08-12|
    US4013829A|1977-03-22|
    NL167897B|1981-09-16|
    SU740145A3|1980-06-05|
    NL7601881A|1976-08-31|
    NL167897C|1982-02-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB1095452A|1963-12-27|1900-01-01|
    DE1588313A1|1967-12-06|1970-12-10|Hell Rudolf Dr Ing Fa|Method for driving drum printing machines|
    US3636251A|1968-08-28|1972-01-18|Quantronix Corp|Laser facsimile system for engraving printing plates|
    DE2413034C3|1974-03-19|1983-11-17|Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel|Method and arrangement for avoiding errors in the reproduction of original images|
    GB1499501A|1974-05-03|1978-02-01|Crosfield Electronics Ltd|Image reproduction systems|DE2726329C2|1976-06-11|1987-12-03|Zed Instruments Ltd., Hersham, Surrey, Gb|
    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|
    DE2739977C3|1977-09-06|1981-01-29|Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel|Engraving device for the production of printing forms|
    DE2741953C3|1977-09-17|1981-05-21|Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel|Engraving device for the production of printing forms|
    JPS5452551A|1977-10-04|1979-04-25|Gakken Co Ltd|Automatic makeup apparatus|
    JPS5452552A|1977-10-04|1979-04-25|Gakken Co Ltd|Automatic makeup apparatus|
    US4357633A|1979-07-11|1982-11-02|Buechler Lester W|Engraving apparatus and method|
    US4422101A|1980-07-30|1983-12-20|Toppan Printing Co., Ltd.|Electronic cylinder making method|
    EP0243523B1|1986-04-30|1990-07-11|DR.-ING. RUDOLF HELL GmbH|Method of recording printing forms|
    JPH0620222B2|1987-07-30|1994-03-16|大日本スクリ−ン製造株式会社|Method for setting the sensitivity standard of the light receiving part of the image scanning reader|
    JP2736598B2|1992-09-14|1998-04-02|大日本スクリーン製造株式会社|Endless pattern plate making method and apparatus|
    US5583647A|1993-05-05|1996-12-10|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|
    US5424846A|1993-05-05|1995-06-13|Ohio Electronic Engravers, Inc.|Cylinder support apparatus and method for use in an engraver|
    US5555473A|1995-02-21|1996-09-10|Ohio Electronic Engravers, Inc.|Engraving system and method for helical or circumferential engraving|
    US5818187A|1995-05-25|1998-10-06|Itt Automotive Electrical Systems, Inc.|Motor and control for windshield wiper system|
    WO1996041410A1|1995-06-07|1996-12-19|Itt Automotive Electrical Systems, Inc.|Reduced speed growth in windshield wiper motor|
    DE19627746C2|1995-07-14|2002-12-12|Dainippon Screen Mfg|Gravure engraving system|
    US5857060A|1995-08-02|1999-01-05|Itt Automotive Electrical Systems, Inc.|Noise suppression in PWM-driven DC motor|
    US5838877A|1995-08-02|1998-11-17|Itt Automotive Electrical Systems, Inc.|Noise suppression in PWM-driven DC motor|
    US5770907A|1995-08-14|1998-06-23|Itt Automotive Electrical Systems, Inc.|Windshield wiper motor for use in a vehicle and method for manufacturing|
    US5616182A|1995-12-04|1997-04-01|Itt Automotive Electrical Systems, Inc.|Method and apparatus for wiping a windshield|
    US6040667A|1995-12-12|2000-03-21|Valeo Elecrical Systems, Inc.|System and method for driving wipers in a windshield wiper system|
    DE19734411A1|1997-08-08|1999-02-11|Heidelberger Druckmasch Ag|Method of positioning engraving elements|
    DE19815165B4|1998-04-04|2005-03-24|Hell Gravure Systems Gmbh|Method for engraving printing forms|
    US20060249491A1|1999-09-01|2006-11-09|Hell Gravure Systems Gmbh|Laser radiation source|
    DE102005047597A1|2005-10-05|2007-04-12|Degussa Ag|Manganese dioxide catalyst for the hydrolysis of carbonitriles|
    DE102007053909B4|2007-11-09|2009-08-13|Hell Gravure Systems Gmbh & Co. Kg|Method and device for engraving printing cylinders|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19752508734|DE2508734C2|1975-02-28|Process for the production of printing forms|
    [返回顶部]