US20130241137A1 - Device for controlling a pneumatic consumer in a sheet-processing machine, in particular a rotary printing press or diecutter, and rotary printing press or diecutter having the device - Google Patents

Device for controlling a pneumatic consumer in a sheet-processing machine, in particular a rotary printing press or diecutter, and rotary printing press or diecutter having the device Download PDF

Info

Publication number
US20130241137A1
US20130241137A1 US13/833,703 US201313833703A US2013241137A1 US 20130241137 A1 US20130241137 A1 US 20130241137A1 US 201313833703 A US201313833703 A US 201313833703A US 2013241137 A1 US2013241137 A1 US 2013241137A1
Authority
US
United States
Prior art keywords
sheet
suction
diecutter
printing press
processing machine
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.)
Abandoned
Application number
US13/833,703
Other languages
English (en)
Inventor
Holger Edinger
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
Assigned to HEIDELBERGER DRUCKMASCHINEN AG reassignment HEIDELBERGER DRUCKMASCHINEN AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EDINGER, HOLGER
Publication of US20130241137A1 publication Critical patent/US20130241137A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/007—Feed tables with front stop arrangements
    • 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
    • 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
    • B65H9/14—Retarding or controlling the forward movement of articles as they approach stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/40—Fluid power drive; Fluid supply elements
    • B65H2406/41—Valves
    • B65H2406/412—Rotary valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/40—Identification
    • B65H2511/416—Identification of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for controlling a pneumatic consumer in a sheet-processing machine, for example a suction bar for lifting sheets being fed to the sheet-processing machine, such as a sheet-fed rotary printing press or diecutter, after being aligned on a feed table.
  • a device for controlling a pneumatic consumer in a sheet-processing machine for example a suction bar for lifting sheets being fed to the sheet-processing machine, such as a sheet-fed rotary printing press or diecutter, after being aligned on a feed table.
  • the invention also relates to a rotary printing press or diecutter having the device.
  • U.S. Pat. No. 7,665,722 B2 discloses a pneumatic lifting device disposed transverse to a direction of sheet travel above a feed table and supplied with blown air.
  • the blown air is provided by a rotary valve in accordance with the cycle of the sheet-processing machine and acts on a trailing edge of a sheet by using blowing/suction nozzles that are provided to lift a trailing edge.
  • a device for controlling a pneumatic consumer in a sheet-processing machine comprises a rotary valve communicating with the pneumatic consumer, and an individual drive configured to drive the rotary valve.
  • the individual drive is an electric motor configured to be driven in accordance with a sinusoidal or non-uniform movement profile.
  • a sheet-processing machine comprising a feed table for guiding sheets in a sheet travel direction, front lays associated with the feed table, a pneumatic consumer being a suction bar disposed above the feed table and positioned within a distance upstream of the front lays in the sheet travel direction, and a device for controlling the pneumatic consumer.
  • a particular advantage of the invention is that the rotary valve is actuatable by using an individual drive. Due to this feature, the actuation of a pneumatic consumer, such as a suction or blower bar, may be individually controlled during an operating cycle.
  • the individual drive is advantageously controlled by a control computer of the sheet-processing machine and may be controlled based on characteristic curves as a function of properties of the machine and the material.
  • the pneumatic consumer is a vacuum consumer, for example a suction bar that is disposed transversely to the direction of sheet travel above the feed table and acts on an upper side of a sheet within a shingled distance between a first sheet and a second sheet at a distance to provided front lays in order to act on the sheet by suction and to lift it as the sheet is being drawn off the feed table.
  • a vacuum consumer for example a suction bar that is disposed transversely to the direction of sheet travel above the feed table and acts on an upper side of a sheet within a shingled distance between a first sheet and a second sheet at a distance to provided front lays in order to act on the sheet by suction and to lift it as the sheet is being drawn off the feed table.
  • This measure has a braking effect that acts to reduce a wave which the sheet describes as it enters the machine and to positively influence the formation of waves on the feed table.
  • the sheet that has been drawn off acts as a guide element for the second sheet that follows the first sheet in the shingled stream.
  • the suction bar is vertically adjustable to be specifically adaptable to the printing material to be processed.
  • the suction bar has a multi-part construction, being formed of a crossbar and suction chambers disposed adjacent each other on the crossbar.
  • the width of the central suction chamber approximately corresponds to the width of the smallest format to be processed. Due to this measure, the two outer suction chambers may be switched off to avoid leakage.
  • the suction chambers are directly connected to the rotary valve by feed lines such as hoses.
  • feed lines such as hoses.
  • a chamber in which the feed lines are connected to the suction chambers is provided on the crossbar to receive the feed lines.
  • FIG. 1 is a diagrammatic, longitudinal-sectional view of a sheet-fed rotary printing press
  • FIG. 2 is an enlarged, longitudinal-sectional view of a suction bar disposed above a feed table
  • FIG. 3 is a further enlarged, elevational view of the suction bar in the region of front lays.
  • a sheet-processing machine for example a printing press 1 or a non-illustrated diecutter, which includes a feeder 2 , at least one printing unit 3 , 4 and a delivery 6 .
  • Sheets 7 are taken from a stack 8 of sheets and are fed to the printing units 3 and 4 either individually or in shingled formation over a feed table 9 .
  • each of the printing units 3 , 4 includes a plate cylinder 11 , 12 .
  • Each of the plate cylinders 11 , 12 has a device 13 , 14 for mounting flexible printing plates.
  • Each plate cylinder 11 , 12 is furthermore assigned a device 16 , 17 for changing printing plates in a semiautomatic or fully automated way.
  • the stack 8 of sheets rests on a main stack plate 10 that is liftable in a controlled way.
  • Sheets 7 are removed from the top of the sheet stack 8 by a so-called suction head 18 which, among other components, includes a number of suction elements to lift and drag the sheets 7 and thus to separate them.
  • blowers are provided to aerate the upper layers of sheets 7 .
  • the stack 8 can be lifted as required, which is activated by push buttons.
  • a number of lateral and rear stops are provided to align the stack 8 of sheets 7 , in particular the uppermost sheets 7 in the stack 8 .
  • a first sheet 7 that is being conveyed in the shingled stream is aligned against front and side lays 19 , 21 seen in FIGS. 2 and 3 before the sheet 7 is gripped by a pre-gripper 22 seen in FIG. 1 and fed to the printing units 3 , 4 of the machine 1 for processing sheets.
  • a pulling gap 23 for the adjustable side lays 21 is disposed in the feed table 9 at a distance a from the front lays 19 and is perpendicular to the direction of sheet travel.
  • a suction bar or consumer 24 is provided above the feed table, immediately upstream of the pulling gap 23 , as viewed in the direction of sheet travel (indicated by an arrow in FIGS. 2 and 3 ).
  • the suction bar 24 is disposed in such a way as to be perpendicular to the direction of sheet travel and is disposed within a shingle length s upstream of the front lays 19 to provide a distance z between the front lays 19 and suction openings 31 , 32 , 33 of the suction bar 24 .
  • the suction bar 24 is formed of a crossbar 26 disposed in such a way as to be vertically adjustable and to pivot.
  • a number of suction chambers for example three suction chambers 27 , 28 , 29 , are disposed adjacent each other on the crossbar 26 .
  • Each of the suction chambers 27 , 28 , 29 has a number of the suction openings 31 , 32 , 33 directed towards the upper side of the sheet 7 .
  • the suction chambers 27 , 28 , 29 are connected to outlets 41 , 42 of a rotary valve 44 by respective suction connections 34 , 36 , 37 and feed lines 38 , 39 .
  • the feed lines 38 , 39 are received by a closed chamber 45 of the crossbar 26 .
  • the feed line 38 supplies the central chamber 28 with suction air provided by the rotary valve 44
  • the feed lines 39 supply the outer suction chambers 27 , 29 with suction air provided by the rotary valve 44 .
  • the feed line 39 includes a switchover valve 46 , allowing the feed line 39 to be switched off. This measure prevents undesired air from being sucked in when sheets of small width are being processed.
  • the width of the central suction chamber 28 approximately corresponds to the width of the smallest format F to be processed.
  • the rotary valve 44 includes an inlet 49 connected to a vacuum source 48 and an individual drive 47 , for example an electric motor.
  • a control computer 51 of the sheet-processing machine 1 drives the individual drive 47 in accordance with the operating cycle of the machine 1 and with a sinusoidal or non-uniform movement profile.
  • the sinusoidal movement profile may be selected on the basis of stored characteristic curves 52 , which factor in different parameters of the sheet material to be processed such as size, thickness, surface properties, etc.
  • the individual drive 47 of the rotary valve 44 allows variable and independent adjustment of the starting point and end point of the supply to the suction bar or consumer 24 .
  • the first sheet 7 of the shingled stream As soon as a first sheet 7 of the shingled stream has been aligned against the front and side lays 19 , 21 , the first sheet 7 is gripped by the grippers of the pre-gripper 22 and drawn off the feed table 9 . As the sheet 7 is drawn off, it tends to form a wave on the feed table 9 . In order to reduce this waving effect, suction air is supplied to the suction bar 24 . Due to this measure, the sheet 7 is lifted up in the rear region of the first shingle and thus decelerated.
  • the sheet may be fed to the sheet-processing machine 1 in a controlled way.
  • the lifted sheet simultaneously acts as a guide element for a following second sheet, which is thus easier to align against the front lays 19 .
  • a rotor 53 of the rotary valve 44 includes a track 54 that connects the inlet 49 to the outlets 38 , 39 .
  • the drive motor 47 likewise moves through precisely one revolution.
  • the extrema of the movement profile are always at the center of the switch-on or switch-off phase, i.e. they are always at the same angular position relative to the rotary body although the angular position of the extrema relative to the machine varies, which means that the amplitude of the sinus wave is varied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
US13/833,703 2012-03-15 2013-03-15 Device for controlling a pneumatic consumer in a sheet-processing machine, in particular a rotary printing press or diecutter, and rotary printing press or diecutter having the device Abandoned US20130241137A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012005258.8 2012-03-15
DE102012005258 2012-03-15

Publications (1)

Publication Number Publication Date
US20130241137A1 true US20130241137A1 (en) 2013-09-19

Family

ID=49044045

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/833,703 Abandoned US20130241137A1 (en) 2012-03-15 2013-03-15 Device for controlling a pneumatic consumer in a sheet-processing machine, in particular a rotary printing press or diecutter, and rotary printing press or diecutter having the device

Country Status (4)

Country Link
US (1) US20130241137A1 (de)
JP (1) JP6279219B2 (de)
CN (1) CN103303709B (de)
DE (1) DE102013002805B4 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146945A (en) * 1936-07-31 1939-02-14 Ehrig Hans Sheet feeder
US3458042A (en) * 1967-07-12 1969-07-29 Luis Mestre Suction sheet feeder
US6364311B1 (en) * 1999-03-19 2002-04-02 Heidelberger Druckmaschinen Ag Negative-pressure control for a lateral pulling device
US7665722B2 (en) * 2003-03-12 2010-02-23 Heidelberger Druckmaschinen Ag Method and apparatus for guiding sheets to a sheet processing machine, in particular a printing press

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214295Y2 (de) * 1972-09-12 1977-03-31
JPS6012450A (ja) 1983-06-29 1985-01-22 Fuji Xerox Co Ltd 複写機における用紙搬送装置
JP2504794B2 (ja) * 1987-12-14 1996-06-05 アキヤマ印刷機製造株式会社 枚葉印刷機の見当装置
JPH0399853A (ja) 1989-09-14 1991-04-25 Komori Corp 印刷用紙の紙押え方法及びその装置
JP3371388B2 (ja) 1995-02-13 2003-01-27 株式会社小森コーポレーション 輪転印刷機の排紙機構
JP3586572B2 (ja) * 1998-10-23 2004-11-10 三菱重工業株式会社 シート給紙装置
JP2007320739A (ja) * 2006-06-02 2007-12-13 Mitsubishi Heavy Ind Ltd 紙押え装置およびこれを用いた枚葉印刷機
US20080191405A1 (en) * 2007-02-12 2008-08-14 Heidelberger Druckmaschinen Ag Sheet-Processing Machine Having a Device for Generating Pneumatic Forces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2146945A (en) * 1936-07-31 1939-02-14 Ehrig Hans Sheet feeder
US3458042A (en) * 1967-07-12 1969-07-29 Luis Mestre Suction sheet feeder
US6364311B1 (en) * 1999-03-19 2002-04-02 Heidelberger Druckmaschinen Ag Negative-pressure control for a lateral pulling device
US7665722B2 (en) * 2003-03-12 2010-02-23 Heidelberger Druckmaschinen Ag Method and apparatus for guiding sheets to a sheet processing machine, in particular a printing press

Also Published As

Publication number Publication date
CN103303709B (zh) 2018-08-28
DE102013002805A1 (de) 2013-09-19
JP6279219B2 (ja) 2018-02-14
CN103303709A (zh) 2013-09-18
DE102013002805B4 (de) 2023-02-16
JP2013193881A (ja) 2013-09-30

Similar Documents

Publication Publication Date Title
US7293770B2 (en) Sheet-transporting device having a suction belt module with a blower
US7992866B2 (en) Apparatus for aligning sheets on stops
US8863662B2 (en) Sheet guiding device and sheet brake, diecutter and printing press having the device
WO2017001398A3 (de) Auslagevorrichtung, verfahren zum fördern von bogen, verfahren zum betreiben einer auslagevorrichtung und verfahren zur steuerung einer ablage von bedruckstoffbogen
US7665722B2 (en) Method and apparatus for guiding sheets to a sheet processing machine, in particular a printing press
JP2019531919A (ja) 枚葉紙の横見当合わせ
US7198267B2 (en) Sheet processing machine with a sheet decurler
US7942402B2 (en) Method for feeding sheets to a sheet processing machine
CN117320985A (zh) 具有多个用于分别加工单张纸的加工站的印刷机
JP2006206326A (ja) 選択された枚葉紙を導出するための装置を備えた枚葉紙処理機
US20080191405A1 (en) Sheet-Processing Machine Having a Device for Generating Pneumatic Forces
US7918162B2 (en) Apparatus for transporting sheets with a gripper device
US6648326B2 (en) Delivery for a machine processing flat printing materials
US9499358B2 (en) Device for combining an auxiliary stack with a main stack and sheet-fed printing press or sheet punching machine having the device
US20130241137A1 (en) Device for controlling a pneumatic consumer in a sheet-processing machine, in particular a rotary printing press or diecutter, and rotary printing press or diecutter having the device
US8132805B2 (en) Method and apparatus for feeding sheets to a processing machine
US6702283B2 (en) Device for decurling flat printing materials
US3336026A (en) Sheet feeding arrangement for a sheet printing machine
JPH02276734A (ja) 枚葉紙輪転印刷機の枚葉紙長さ走査装置
JP5243293B2 (ja) 製本機械用エジェクタ給紙装置及びエジェクタ給紙装置を使用した製本システム
US7261292B2 (en) Method of feeding sheets to a sheet-processing machine, sheet-smoothing method and device
CN111683814B (zh) 加工单张纸的机器和传送单张纸的方法
US8960663B2 (en) Sheet feeder with two suction wheels
JP2000272092A (ja) 横引き寄せ装置用の負圧制御
US6446959B2 (en) Device for aligning sheets laterally

Legal Events

Date Code Title Description
AS Assignment

Owner name: HEIDELBERGER DRUCKMASCHINEN AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EDINGER, HOLGER;REEL/FRAME:030229/0701

Effective date: 20130411

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION