EP0161507B1 - Zuführeinrichtung für bogenverarbeitende Maschinen, insbesondere Druckmaschinen - Google Patents

Zuführeinrichtung für bogenverarbeitende Maschinen, insbesondere Druckmaschinen Download PDF

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Publication number
EP0161507B1
EP0161507B1 EP85104512A EP85104512A EP0161507B1 EP 0161507 B1 EP0161507 B1 EP 0161507B1 EP 85104512 A EP85104512 A EP 85104512A EP 85104512 A EP85104512 A EP 85104512A EP 0161507 B1 EP0161507 B1 EP 0161507B1
Authority
EP
European Patent Office
Prior art keywords
sheet
feeding device
feed table
alignment
level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85104512A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0161507A1 (de
Inventor
Gerhard Pollich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0161507A1 publication Critical patent/EP0161507A1/de
Application granted granted Critical
Publication of EP0161507B1 publication Critical patent/EP0161507B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
    • B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means

Definitions

  • the invention relates to a feed device for sheet-processing machines, in particular printing machines, by means of which the machine is fed the sheets, which are separated from a stack, over sheet-bearing surfaces of a feed table and an alignment device integrated therein for the lateral sheet alignment.
  • Such a feed device is known for example from DE-OS 20 46 602.
  • a drawing list is integrated in the feed table, the upper boundary surface of which is flush with that of the feed table.
  • a temporary adhesive contact between the upper boundary surface of the drawing strip and the underside of the sheet to be aligned laterally is produced, as is generally the case with generic devices, so that this follows the alignment movement of the drawing list.
  • an area of the sheet to be aligned rearward in the sheet running direction bulges over the sheet which is subsequently shingled. Depending on the stiffness and thickness of the sheets, this can impair the said contact and thus the necessary exact lateral alignment.
  • DE-OS 20 46 602 The mentioned disturbance of the lateral sheet alignment due to a reduced adhesive contact between the drawing strip and sheet is avoided in another embodiment of DE-OS 20 46 602 in that the lateral alignment is accomplished after leaving the front marks on a stop drum or an intermediate drum.
  • the greater sheet processing power possible with this must be purchased with an extremely sensitive electronic measuring and control device and a complex receptacle for the stop or intermediate drum, which must oscillate at the frequency of the machine cycle and travel different adjustment paths with each cycle.
  • a device for the exact lateral alignment of the sheets, a device has been proposed with EP-A-36 496 with which a changeable adhesive contact between the pull strip and the sheet can be achieved.
  • a so-called swab roller which presses the sheet against the drawing strip, is assigned to a drawing strip designed as a suction pull strip.
  • the squeegee is controllably connected to a vacuum source in such a way that said adhesive contact is increased by suction in the initial phase of the lateral sheet alignment and results only in the final phase of the lateral alignment from the adjustable pressing force of the swab roller.
  • the pressing force in the final phase of the alignment is deliberately chosen to be small in order to prevent the sheet from being compressed at the side marks. As a result of the small pressing force during the final phase of the alignment movement, subsequent sheets that are fed under shingled can also lead to the above-mentioned disturbances in the lateral alignment.
  • EP-A-120 358 proposes a method and a device with which the problem of upsetting the sheet side edges when they strike side marks is avoided a priori by a side alignment device controlled in such a way that the detected sheet is transported to a precisely fitting lateral position .
  • the problems described with regard to the adhesive contact in the case of scaled sheet feed remain even when this method is applied to a generic feed device.
  • the present invention has for its object to improve a generic feed device such that a perfect lateral alignment and a trouble-free sheet travel is guaranteed even at higher hourly printing rates.
  • suction nozzles that can be lifted out of the surface of the feed table.
  • these suction nozzles are not used for lateral alignment. Rather, their job is to stop the shed package on the feed table when printing is interrupted. In particular, they are not provided in order to avoid influencing a leading sheet by a scaled-up following sheet during the alignment phase of the leading sheet, as is intended by the suction slide which can be lifted out of the surface of the feed table according to the exemplary embodiment according to FIG. 7 of the present invention.
  • Fig. 1 shows the prior art.
  • a first and a second sheet 2, 3 lie on the feed table 1.
  • the first sheet 2 abuts the front marks 4.
  • the sheet is to be aligned perpendicular to the plane of the drawing by the lateral alignment device 5 before it is fed to a cylinder 6 of the machine for further processing. It can be clearly seen that the sheet 2 to be aligned does not lie snugly on the alignment device 5.
  • the feed table 7 is formed in two parts transversely to the sheet conveying direction and has a front area 7.1 and a rear area 7.2.
  • the sheets from the stack 9 are fed to the machine 10 via this feed table 7.
  • the corresponding alignment is carried out via the front marks 4 and the lateral alignment device 5.
  • the rear region 7.1 of the feed table 7 is pivotally supported over its entire width about an axis of rotation 11 at its end facing the stack 9.
  • a height adjustment device 12 engages, by means of which it can be pivoted about the axis of rotation 11 according to arrow 13.
  • the lateral alignment device 5 is designed as a pneumatically actuated suction slide 14, which has a cavity 15 and a suction air supply 16 in the interior.
  • the entire suction carriage 14 moves during the alignment process in a receiving body 18 with guide elements 19 in the direction perpendicular to the plane of the drawing, i.e. perpendicular to the sheet conveying direction in a recess 40 of the front feed table area 7.1.
  • the drive required for this is not shown for the sake of simplicity.
  • the arc is held and aligned accordingly via suction air openings 17.
  • the height adjustment device 12 consists essentially of a shaft 20 extending transversely to the sheet conveying direction, on which a number of eccentrics 21 are rotatably mounted at certain intervals (FIG. 4), on which in turn the aforementioned front end of the rear feed table area 7.2 rests.
  • the shaft 20 is additionally supported on the bearing stand 23 by means of bearing stands 23, which are attached to a support rail 22 at certain intervals.
  • the shaft 20 and the support rail 22 are rotatably mounted or attached to side frames 24, 25.
  • the one end of the shaft 20 which extends beyond the frame 25 is provided for the purpose of manual adjustment with an adjustment button 26, by means of which it and thus the eccentric 21 can be rotated and the height of the rear area 7.2 can thereby be adjusted.
  • a leaf spring 27, which engages in the recesses of a knurled part 28 of the adjusting knob 26, serves to lock the manually selected position.
  • a drive motor or a transmission could engage at the corresponding point on the shaft 20 (not shown in the drawing).
  • any other adequately acting height adjustment device would also be suitable.
  • FIG. 5 shows a feed table 7 designed in the manner described above. Only the lateral alignment device 30 is alternatively designed as acting purely mechanically.
  • the (arrow) drawing roller 31 which moves up and down in time with the sheet conveyance, presses the sheet 2 to be aligned against a drawing rail 32 embedded in a recess 40 in the front area 7.1, which moves in the direction perpendicular to the plane of the drawing.
  • a cover 33 and the side mark 34 are indicated by dashed lines.
  • the respective drives are also not shown here for the sake of simplicity, since they are not part of the invention but are familiar to the person skilled in the art.
  • the feed table 35 being made in one piece and passing in the sheet conveying direction in front of the lateral alignment device 5 via a flowing bevel 36 that allows undisturbed sheet transport into a lower-lying area 42.
  • the depth dimension is fixed and, as in the aforementioned embodiments, corresponds approximately to a paper thickness for which the use of the device according to the invention is expedient.
  • Fig. 7 shows a further embodiment, in contrast to the aforementioned, the one-piece feed table 39 is completely flat.
  • a height adjustment device 12 now acts on it itself, as it corresponds in its operation, for example, to that according to FIGS. 3 and 4. This can, for. B. cyclically during the alignment process, the lateral alignment device 5 to be raised by a small amount (sheet thickness) in order to then be lowered again to the level of the feed table 39.
  • FIG. 8 A last embodiment is shown in FIG. 8.
  • the feed table 7 is again formed in two parts transversely to the sheet conveying direction.
  • the front area 7.1 facing the front marks 4 is pivotally mounted about an axis of rotation 37 and is acted upon by the height adjustment device 12 via the lateral alignment device 5.
  • Connecting screws 38 establish the connection between the front area 7.1 of the feed table 7 and the receiving body 18 of the alignment device 5, on which the height adjustment device 12 acts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Manual Feeding Of Sheets (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP85104512A 1984-05-12 1985-04-13 Zuführeinrichtung für bogenverarbeitende Maschinen, insbesondere Druckmaschinen Expired EP0161507B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843417764 DE3417764A1 (de) 1984-05-12 1984-05-12 Zufuehreinrichtung fuer bogenverarbeitende maschinen, insbesondere druckmaschinen
DE3417764 1984-05-12

Publications (2)

Publication Number Publication Date
EP0161507A1 EP0161507A1 (de) 1985-11-21
EP0161507B1 true EP0161507B1 (de) 1987-08-12

Family

ID=6235741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104512A Expired EP0161507B1 (de) 1984-05-12 1985-04-13 Zuführeinrichtung für bogenverarbeitende Maschinen, insbesondere Druckmaschinen

Country Status (6)

Country Link
US (1) US4635925A (enrdf_load_stackoverflow)
EP (1) EP0161507B1 (enrdf_load_stackoverflow)
JP (1) JPS60244742A (enrdf_load_stackoverflow)
AU (1) AU577849B2 (enrdf_load_stackoverflow)
CA (1) CA1236132A (enrdf_load_stackoverflow)
DE (2) DE3417764A1 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242731A1 (de) * 1992-12-17 1994-06-23 Heidelberger Druckmasch Ag Vorrichtung zum seitlichen Ausrichten von Bogen in Druckmaschinen
CA2135421C (en) * 1993-11-12 2000-09-12 Motoaki Murakami Continuous film take-up apparatus
ES2331882T3 (es) * 2003-09-23 2010-01-19 Bobst S.A. Dispositivo de posicionamiento de hojas en una estacion de introduccion de una maquina de tratamiento.
TWI248415B (en) * 2003-09-23 2006-02-01 Bobst Sa Device for positioning the sheets into an introduction station of a processing machine
JP6922266B2 (ja) * 2017-03-07 2021-08-18 富士フイルムビジネスイノベーション株式会社 画像形成装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046602A1 (enrdf_load_stackoverflow) * 1970-09-22 1972-06-08 Koenig & Bauer Schnellpressfab

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2182023A (en) * 1937-04-23 1939-12-05 Harris Seybold Potter Co Method and means for feeding and registering sheets
US3044771A (en) * 1960-04-18 1962-07-17 Harris Intertype Corp Sheet handling cylinder
GB935487A (en) * 1960-12-30 1963-08-28 Int Computers & Tabulators Ltd Improvements in or relating to sheet aligning apparatus
CH405366A (de) * 1961-12-27 1966-01-15 Planeta Veb Druckmasch Werke Vorrichtung zum Trennen und Niederhalten von Bogen auf dem Anlegtisch und zum reibungslosen Transport des ausgerichteten Bogens an bogenverarbeitenden Maschinen
DE2604379C2 (de) * 1976-02-05 1982-02-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zum Ausrichten von Bogen
DD126168A1 (enrdf_load_stackoverflow) * 1976-04-19 1977-06-22
DE3011626A1 (de) * 1980-03-26 1981-10-01 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum seitlichen ausrichten von selbsttaetig zugefuehrten bogen an druckmaschinen
US4541623A (en) * 1982-12-27 1985-09-17 International Business Machines Corporation Alignment restraint station
ZA84910B (en) * 1983-03-26 1984-09-26 Heidelberger Druckmasch Ag Method for aligning sheets

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046602A1 (enrdf_load_stackoverflow) * 1970-09-22 1972-06-08 Koenig & Bauer Schnellpressfab

Also Published As

Publication number Publication date
EP0161507A1 (de) 1985-11-21
US4635925A (en) 1987-01-13
DE3417764C2 (enrdf_load_stackoverflow) 1988-07-07
AU577849B2 (en) 1988-10-06
DE3560441D1 (en) 1987-09-17
CA1236132A (en) 1988-05-03
JPS60244742A (ja) 1985-12-04
JPH055739B2 (enrdf_load_stackoverflow) 1993-01-25
DE3417764A1 (de) 1985-11-14
AU4171685A (en) 1985-11-14

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