• 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:
    The method comprises the steps of feeding from a stack of sheets to be printed the first sheet on a feedboard, aligning the leading edge of the sheet with a preliminary stop line whereby the sheet is brought to a rest position, sucking from below the preliminarily aligned sheet and removing the preliminary stop line, forwarding the preliminarily aligned and positively coupled sheet in feeding direction to a second stop line and relieving the suction whereby the leading edge of the sheet is finally aligned and a successive sheet is fed to the first stop line or the preliminary alignment of its leading edge, laterally adjusting the register of the first sheet abutting against the second stop line, removing the second stop line and advancing the first sheet into the press. The device for carrying out the above alignment process includes a feedboard having at its end front stops and at its central portion openings for preliminary front stops and elongated openings for reciprocating suction cups and furthermore lateral alignment devices arranged between the preliminary front stop and the final front stops. The drive of the preliminary front stop is effected through spring biased double-cam mechanism driven by a single revolution cam shaft.
    公开号:SU925821A1
    申请号:SU787770273
    申请日:1978-08-16
    公开日:1982-05-07
    发明作者:Вейсбах Гюнтер
    申请人:Феб Комбинат Полиграф Лейпциг (Инопредприятие)；
    IPC主号:
    专利说明:

    (5 ") DEVICE FOR ALIGNING SHEETS
    This invention relates to a device for aligning sheets in printing machines.
    The print quality of powerful machines of this type is determined to a significant degree by the accuracy with which the sheet can be leveled on the application tray and delivered to the machine. However, increasing the number of revolutions of the machine causes a reduction in the absolute time available for leveling the front and side edges of the sheet, which degrades the print. To achieve good print quality with high productivity, there are devices with which you can lengthen the alignment time.
    According to DE 682706, a device is known for pre-leveling a sheet by means of catching hooks. These hooks pick up the sheet in motion (speed difference) and serve with constant deceleration to the front stops, while sheet 26 in the PRINTING MACHINES
    pre-aligned in motion and at low speed fed to the front stops. In this case, the catching hooks may be briefly immobile in the turned-over position during the impact of the sheet.
    However, catching hooks must make a long stroke before they return from the front stops to the catch position. This long stroke causes a loss of time in the alignment process, which is not accurate enough as it is produced during movement.
    In addition, the management of catching hooks requires a sophisticated gearbox with high material consumption.
    The purpose of the invention is to create a device for leveling sheets, which process sheet quality and at high speeds due to high leveling accuracy.
    In the proposed device, under the patch table, there are stationary, front stops that are turned in the course of sheet movement. Between the front stops and the front stops are moving I transport suckers. Grooves are provided in the overlay table for receiving transport suckers and front stops. The drive of the front stops is designed as a double cam cam transmission, consisting of a disk cam, a cam roller and the first and second roller levers, with the disk cam rigidly located on a single turn shaft. The front stops are rigidly located on the second roller lever.
    The advantage of the invention is that the sheets can be stopped when moving forward and brought to a quiescent state, first on the first alignment line consisting of front stops, and then after moving in the feed directions by the value of the distance of both alignment lines and after possible lateral movement to a constant value on the second line, the front edge is aligned on both lines of alignment on the elements for alignment (front and front stops), controlled in lines crystals alignment so that they block (position alignment) or deprotected (sheet feeding) path of the sheet.
    Thus, there is a total alignment time (front and side edge) of more than one machine stroke (360), so that the alignment accuracy can be improved at higher speeds.
    In addition, the creation of two alignment lines makes it possible to control the presence of defective or double sheets already on the first alignment line. The interlocking functions when the machine is stopped, which are still performed by front or forgrafter, are now carried out by front stops. Pre-stops, having a mass less than that of the foryreyfrey and front stops, require less effort to block. In addition, the lockout time available is longer.
    FIG. 1 shows a schematic representation of the phases of sheet alignment; on
    FIG. 2 - the device, side view; in fig. 3 - an overlay table, a type of a drill. A device for leveling sheets 1 and 7 consists of an overlay table 2 located on an overlay table 2 of an extracting device 8, a pre-ax / 1 of the stops 3. front stops 6 and transport suckers 5,
    as well as a gearbox for driving the front stops 3. In the overhead table 2, recesses 9 and 9 are provided for the transport suckers 5 and the front stops 3.
    The front stops 3 and front stops 6, which are located across the width of the overlay table, form in their position of alignment the first and second alignment line tO and P.
    Front stops 6 and transport suckers 5 and their baits, as well as control of air suction of suction cups 5 are known and do not require detailed explanation. The gearbox for driving the front stops 3 is made as a five-double cam transmission 12, 13, 13; The TS consisting of disk cams 2, 12, mounted on a single-turn shaft i, cam rollers t3, 13, as well as first and second roller levers 1 and 15. The first roller lever H is rotatable on the supporting neck 16 and is connected to the second roller lever 15. The levers 1 and 15 are tensioned by means of an extension spring 17 against the cam discs 12, 12. The stops 3 are firmly located on the lever 15- Balancing the forces of five-double cam transmission 12, 12; 13. 3; 5 is manufactured by a compression spring 18, firmly tensioned on the machine bed.
    The front sheet I of the cascading arrangement of the sheets is caught when it moves on the table 2 by the front stops 3 being in the catching position, is brought to a state of rest and is automatically aligned
    on the leading edge (figure 1, a). At the end of the alignment process, control is carried out on defective or double sheets, with the front most sheet 1 remaining on
    权利要求:
    Claims (3)
    [1]
    stops 3 due to the larger angle of the single-turn shaft k rotating with speed of the machine (Fig. 1, 6). In Fig. 1, the front sheet 1 is sucked from the bottom side by the transport suction 5, the front stops 3 release the sheet 1 (Fig 1, d), and the suckers 5 transport the sheet in the direction of the sheet or obliquely in the direction of the sheet (parallel to the edges) to front stops 6 and lay it at a low speed or a speed equal to O (figure 1, d). To receive the next sheet 7, the front stops 3 simultaneously return to the trapping position. The suction cups 5 again move in the direction of the front stops 3. The front sheet 1 with the front edge at the front stops 6 (FIG. 1, e) is precisely aligned, stretches and aligns with the side edge. After that, the front stops 6 release the sheet 1, and it is transferred to the machine (Fig. 1, g). The alignment of the front sheet 1 at the front stops 6 and the next sheet 7 At the front stops 3 as well as the release of sheets 1 and 7, the stops 6 and 3 are performed simultaneously or almost simultaneously. ) During the working stroke, the front stops 3 move on loop 19 (see Fig. 2), i.e. through the trapping position (Fig. 1, a) AJW of preventing sheet ejection, to the alignment position (Fig. 1, b) and from there to the position below the overlay table 2 for releasing sheet 1 (Fig. 1, d). The device also allows lateral pre-alignment of the sheet. This is possible after leveling the leading edge at the front stops 3. As the suction device 8, it can be used as a suction device and as a pull guide, acting on the bottom of the sheet, or other pneumatic means. 1 Claims 1. A device for leveling sheets in printing machines with an overlapping sheet feed on an overlay table, consisting of swiveling front stops, a hood, and pre-alignment means that are set in motion, differing in that under the overlay table 2 are fixed, turning front plates 3 in the course of the sheet movement.
    [2]
    2. The device according to claim 1, that is, in that between the front stops 3 and the front stops 6 there are movable transport suckers S3. The device according to claims. 1 and 2, differing in that in the overlay table 2, notches 9.9 are made for receiving transport suckers 5 and front stops
    [3]
    3.. A device according to claim 1, wherein the drive of the front stops 3 is made as a continuous double cam transmission 12, 12 13, 13, 1, 15, consisting of a disk cam 12, 12, a cam roller 13, 13 and the first and second roller levers I, 15. 5. The device according to paragraphs. 1 and, in particular, the disk cam 12, 12 is rigidly located on a single turn shaft. 6. The device according to claim 1, which is based on the fact that the preceding stops 3 are rigidly located on the second roller lever 15. It is recognized as an invention according to the results of the examination carried out by the department for the invention of the German Democratic Republic.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    GB2004253B|1982-02-17|
    DD132652B1|1980-12-10|
    GB2004253A|1979-03-28|
    SE7809637L|1979-03-15|
    JPS5470564A|1979-06-06|
    US4257586A|1981-03-24|
    US4330117A|1982-05-18|
    JPH0130739B2|1989-06-21|
    IT7869118D0|1978-09-14|
    CS208511B1|1981-09-15|
    DE2829090A1|1979-03-22|
    DE2829090C2|1984-06-28|
    IT1107941B|1985-12-02|
    SE436864B|1985-01-28|
    DD132652A1|1978-10-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2011745A|1932-07-22|1935-08-20|Wormser Arthur|Method of and means for feeding sheet material|
    DE682706C|1932-07-23|1939-10-20|Faber & Schleicher Akt Ges|Device for register-containing feeding of sheets which overlap each other like scales and form a moving stack|
    DE619572C|1934-01-03|1936-01-11|Faber & Schleicher Akt Ges|Device for the correct alignment of sheet-shaped materials|
    US2182023A|1937-04-23|1939-12-05|Harris Seybold Potter Co|Method and means for feeding and registering sheets|
    US2812940A|1953-09-17|1957-11-12|Champlain Company Inc|Check imprinting press|
    DE1123678B|1956-03-06|1962-02-15|Harris Intertype Corp|Method and device for conveying sheets to a rotating cylinder provided with grippers|
    DE1611367B1|1967-08-16|1971-09-09|Roland Offsetmaschf|Device for aligning a sheet|
    DE2509276A1|1975-03-04|1976-09-09|Maschf Augsburg Nuernberg Ag|Sheet positioner for rotary printing machine - has shaft with guide rollers for transport belts moving perpendicular to sheets|
    DE2604379C2|1976-02-05|1982-02-25|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|Method for aligning sheets|JPS6054236A|1983-09-02|1985-03-28|Komatsu Ltd|Material feeding device|
    JPH0531142B2|1984-02-18|1993-05-11|Mita Industrial Co Ltd|
    DE3438134C2|1984-10-18|1988-10-13|Man Roland Druckmaschinen Ag, 6050 Offenbach, De|
    US4568075A|1984-11-08|1986-02-04|Eastman Kodak Company|Sheet registration and clamping apparatus|
    US4634112A|1985-10-17|1987-01-06|Morton Silverberg|Plural belt document feeder|
    GB2194516A|1986-07-08|1988-03-09|Ratby Eng Co Ltd|A printing machine sheet feed|
    DD271681A1|1988-05-02|1989-09-13|Polygraph Leipzig|DEVICE FOR CONTINUOUS ADJUSTMENT OF THE CURVED EDGE EDGE IN BOW INSTALLERS|
    DE4115121C2|1991-05-08|1999-02-25|Kba Planeta Ag|Method and device for aligning sheets on printing machines|
    US5342039A|1992-12-17|1994-08-30|Xerox Corporation|Sheet handling device and method for transporting sheets|
    US5301938A|1992-12-17|1994-04-12|Xerox Corporation|Apparatus for gripping and registering sheets|
    US6811336B2|2001-11-28|2004-11-02|Jostens, Inc.|Registration cam for a printing press|
    US7337721B2|2002-01-16|2008-03-04|Jostens, Inc.|Adjustable die fixture for a printing press|
    US8213851B2|2007-03-23|2012-07-03|Ricoh Company, Limited|Conveying device and image forming apparatus|
    JP4750754B2|2007-05-31|2011-08-17|株式会社リコー|Sheet conveying apparatus and image forming apparatus|
    DE102009008776B4|2008-03-17|2021-05-27|Heidelberger Druckmaschinen Ag|Device for aligning sheets with stops|
    PT2312591T|2009-08-31|2020-04-23|Nexans|Fatigue resistant metallic moisture barrier in submarine power cable|
    DE102010054708A1|2010-02-02|2011-08-04|Heidelberger Druckmaschinen AG, 69115|Deckmark height adjustment device|
    CN103085465B|2011-11-04|2014-12-24|上海光华印刷机械有限公司|Armature opening and closing mechanism for paper transferring mechanism swinging downward|
    JP5936173B2|2011-12-28|2016-06-15|株式会社リコー|Sheet material position correction apparatus and image forming apparatus|
    JP6064763B2|2013-04-17|2017-01-25|住友電装株式会社|Terminal crimping device|
    DE102019129643B4|2019-11-04|2021-09-09|Koenig & Bauer Ag|Sheet processing machine with at least one transport means of a feed system and method for the relative change in position of a transport means of a feed system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD20101677A|DD132652B1|1977-09-14|1977-09-14|METHOD AND DEVICE FOR ARRANGING ARC|
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