EP0225455A2 - Dispositif de sortie pour rotative à feuilles - Google Patents
Dispositif de sortie pour rotative à feuilles Download PDFInfo
- Publication number
- EP0225455A2 EP0225455A2 EP86114659A EP86114659A EP0225455A2 EP 0225455 A2 EP0225455 A2 EP 0225455A2 EP 86114659 A EP86114659 A EP 86114659A EP 86114659 A EP86114659 A EP 86114659A EP 0225455 A2 EP0225455 A2 EP 0225455A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- sheet
- speed
- delivery device
- suction
- 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.)
- Granted
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
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/68—Reducing the speed of articles as they advance
- B65H29/683—Slowing-down from chain delivery
-
- 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
- B65H2406/30—Suction means
Definitions
- the invention relates to a suction roll used as a sheet brake according to the preamble of patent claim 1.
- Bow brakes are e.g. made known by DE-PS 721 545. It consists of a plurality of absorbent bodies, the circumferential speed of which when the sheet is taken over is approximately the same as the conveying speed of the gripper chain and decreases continuously from the absorbent body until the moment the sheet end is left.
- the invention has for its object to provide a sheet brake in a sheet delivery device of a sheet-fed rotary printing press, which can also be used in a perfecting sheet-fed rotary printing press without the sheet brake smearing the freshly printed page.
- a suction roll 1 is rotatably mounted in a known manner.
- the suction roll 1 is driven by means of a speed-controllable direct current motor 2.
- the suction roll 1 has an ink-repellent, for example, chrome-plated outer surface 3.
- the suction roll 1 is equipped with suction holes 4, which penetrate the suction roll 1 radially.
- the suction holes 4 are arranged starting from a center of the suction roll 1 on a right-hand or left-hand screw line. Beneath the suction roller 1, a suction bar 5, which can be acted upon by suction air and sealed against the suction roller 1, is mounted between the side frames.
- a dampening unit 6 known per se is employed on the suction roller 1, which comprises a dampening unit 7, a chrome-coated ductor roller 8 and a rubber-coated application roller 9.
- the ductor roller 8 and the application roller 9 are driven by the suction roller 1 via gears (not shown) such that a relative speed is generated between the suction roller 1 and the application roller 9, or the application roller 9 and the ductor roller 8, preferably the peripheral speed of the application roller 9 is smaller than the peripheral speed of the suction roller 1.
- FIG. 3 shows a sheet delivery device in which a moist wiper belt 11 is pressed onto the suction roller 1 described above by means of a pressure bar 12.
- the wiper belt 11 is wound on a spool 13 and is gradually pulled past the direction of rotation of the suction roller 1 via a driven winding spool 14.
- FIG. 4 shows a second variant of the arrangement described in FIG. 3, in which the wiper belt 11 is pulled between the suction roller 1 and the suction bar 5, so that the pressure bar 12 can be omitted.
- a rotating roller 16 placed against the suction roller 1 with a textile cover 15 e.g. Moltex can be used.
- the textile cover 15 is preferably moistened in cycles by means of spray nozzles 17.
- the devices for dampening and cleaning the suction roller 1 described above are each mounted below a sheet guide plate 18 in tabs 19 which are fastened to the sheet guide plate 18.
- the sheet guide plate 18 is preferably pivotable upwards, so that the devices for dampening and cleaning (6, 11, 16) are easily accessible.
- a dirt trough 23 is attached to a two-part cross member 21, 22 fixed to the frame.
- the crossbeam 21, 22 also serves to receive the spray nozzles 17.
- FIG. 6 shows a speed curve of a peripheral speed v s of the suction roll 1 in a time-speed diagram.
- a delivery speed v a of the sheets and a speed range v k of the gripper chain speed are shown in the diagram.
- the speed range v k is limited by a maximum gripper chain speed v k max and a minimum gripper chain speed v k min .
- a (inclination) denotes a range of the peripheral speed v s of the suction roll 1 in which the suction roll 1 experiences a deceleration.
- the inclination a is independent of the hook chain speed v k .
- the peripheral speed v are each s and the design speed v s is equal.
- P is a gripper opening time.
- the sheets 24 printed on face and reverse printing are each transported to a stacking table 32 by means of gripper carriages 28 attached to gripper chains 27, the gripper carriages 28 having controllable rows of grippers 29.
- the suction roll initial speed v s is in each case equal to the gripper chain speed v k .
- the grippers 29 are opened by means of an adjustable gripper control curve, not shown, which is known per se, before a front edge 33 of the sheets 24 reaches a stop 24 of the stacking table 32.
- the sheet 24 becomes free and floats up to the stop 34.
- the suction roller 1 is braked by means of the direct current motor 2 until its peripheral speed v s is equal to the constant design speed v a (eg 10% of the maximum gripper chain speed v k max .
- the sheets 24 are decelerated to their constant laying speed v a .
- a thyristor set a tacho generator (setpoint generator) coupled to the main drive of the sheet-fed rotary printing press, a tacho generator (actual setpoint generator) coupled to the direct current motor 2 and electronic setpoint formers are provided to regulate the speed of the DC motor 2.
- the control described above keeps the peripheral speed v s of the suction roller 1 equal to the gripper chain speed v k . If the grippers 29 open, the speed setpoint becomes the same Current motor 2 from the setpoint generator "tachogenerator" to the setpoint generator “setpoint generator”. In accordance with the impressed target values of the target value generator, the peripheral speed v s of the roller 1 is continuously reduced until it has reached the peripheral speed v a .
- the suction roller 1 has coupled a tachometer generator as the actual value transmitter.
- the control device for the direct current motor 2 has a setpoint input unit.
- the suction roller 1 is accelerated again by the direct current motor 2 until the peripheral speed v s of the suction roller 1 is equal to the speed v k of the gripper chains 27.
- the roller 1 must have reached the speed v s again before the next sheet 24 arrives at the suction roller 1.
- the hydrophilic, chrome-plated outer surface 3 of the suction roller 1 is damply cleaned of adhering ink particles by the above-described devices (6, 11, 16), so that no ink particles have a printed underside 36 of the Bow 24 are pulled away.
- An adjustable gripper control curve makes it possible, depending on the production speed, to open the grippers earlier or later and thus to achieve a constant deceleration of the suction roll 1. Because the gripper opening time P depends on the variable speed speed v k of the gripper chains 27, each corresponding to a production speed range of a sheet-fed rotary printing press, is adjustable, the gripper opening time P is shifted with increasing speed v k so that a longer braking distance is available for braking the sheet 24.
- FIG. 6 shows a profile of the peripheral speed v s of the suction roll 1 at a maximum speed v k max of the gripper chains 27 and at a minimum speed v k min of the gripper chains 27.
- the acceleration of the roller 1 increases with increasing production speed, while the deceleration preferably remains the same over the entire production speed range.
- the holding force exerted by the roller 1 on the sheet 24 can of course also be generated with an electrostatically charged roller 1 instead of suction air.
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)
- Treatment Of Fiber Materials (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3543026 | 1985-12-05 | ||
DE3543026A DE3543026C1 (de) | 1985-12-05 | 1985-12-05 | Auslegevorrichtung fuer eine Bogenrotationsdruckmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0225455A2 true EP0225455A2 (fr) | 1987-06-16 |
EP0225455A3 EP0225455A3 (en) | 1988-03-02 |
EP0225455B1 EP0225455B1 (fr) | 1990-01-03 |
Family
ID=6287719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86114659A Expired - Lifetime EP0225455B1 (fr) | 1985-12-05 | 1986-10-22 | Dispositif de sortie pour rotative à feuilles |
Country Status (7)
Country | Link |
---|---|
US (1) | US4717141A (fr) |
EP (1) | EP0225455B1 (fr) |
JP (1) | JPS62153057A (fr) |
CS (1) | CS270214B2 (fr) |
DD (1) | DD252590A5 (fr) |
DE (2) | DE3543026C1 (fr) |
SU (1) | SU1544183A3 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3812678C3 (de) * | 1988-04-16 | 1996-04-11 | Heidelberger Druckmasch Ag | Vorrichtung zum Reinigen von zylindrischen Mantelflächen in Rotationsdruckmaschinen |
DE4220582A1 (de) * | 1991-08-16 | 1993-02-18 | Heidelberger Druckmasch Ag | Einrichtung zur regelung und/oder steuerung einzelner stellelemente im auslegerbereich einer druckmaschine |
US5969274A (en) * | 1997-02-25 | 1999-10-19 | Hewlett-Packard Company | Alternate method of sensing paper entry |
US6354591B1 (en) * | 2000-01-19 | 2002-03-12 | Quad/Tech, Inc. | Printed product slow down apparatus and method |
JP2016074517A (ja) * | 2014-10-07 | 2016-05-12 | 大日本印刷株式会社 | 吸引ブレーキ車制御システム、枚葉印刷機 |
DE102021102597A1 (de) | 2021-02-04 | 2022-08-04 | Koenig & Bauer Ag | Verfahren zum Betreiben einer Auslage einer bogenverarbeitenden Maschine mit einer Bogenbremse |
DE102021115291A1 (de) | 2021-06-14 | 2022-12-15 | Koenig & Bauer Ag | Verfahren zum Betreiben einer Auslage einer bogenverarbeitenden Maschine mit einer Bogenbremse und Auslage |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE721545C (de) * | 1940-11-29 | 1942-06-12 | Roland Offsetmaschf | Auslegevorrichtung mit einer als Bogenbremse benutzten Saugwalze fuer Druckmaschinen |
US3432161A (en) * | 1966-10-13 | 1969-03-11 | Lamb Grays Harbor Co Inc | Sheet control apparatus |
US3730517A (en) * | 1971-05-03 | 1973-05-01 | Harris Intertype Corp | Sheet conveyor apparatus and method |
EP0096276A2 (fr) * | 1982-06-03 | 1983-12-21 | Koenig & Bauer Aktiengesellschaft | Dispositif de sortie des feuilles pour presses rotatives |
DE3331129A1 (de) * | 1982-10-01 | 1984-04-05 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | Verfahren und vorrichtung zur zufuehrung von feuchtmittel in offsetdruckmaschinen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2969980A (en) * | 1958-09-08 | 1961-01-31 | Miehle Goss Dexter Inc | Vacuum slow down device for sheet delivery mechanism |
US3686771A (en) * | 1970-07-23 | 1972-08-29 | Polygraph Leipzig | Humidity regulating system for printing machines |
DE2348320C3 (de) * | 1973-09-26 | 1978-12-14 | Vits-Maschinenbau Gmbh, 4018 Langenfeld | Vorrichtung zum stapelweisen Ablegen einzelner gleichlanger Bogen |
JPS517423U (fr) * | 1974-07-06 | 1976-01-20 | ||
FR2285997A1 (fr) * | 1974-09-11 | 1976-04-23 | Moestue Hans | Dispositif de nettoyage d'un cylindre d'une machine a imprimer |
DE2845932A1 (de) * | 1978-10-21 | 1980-04-24 | Heidelberger Druckmasch Ag | Kombiniertes feucht-farbwerk fuer offsetdruckwerke |
JPS56132353A (en) * | 1980-03-22 | 1981-10-16 | Canon Inc | Transfer material conveyor |
JPS5892565A (ja) * | 1981-11-30 | 1983-06-01 | Dainippon Printing Co Ltd | インキローラ洗浄装置 |
JPS60155461A (ja) * | 1983-09-29 | 1985-08-15 | Akiyama Insatsuki Seizo Kk | 枚葉印刷機における印刷紙排紙機構 |
DE3418344A1 (de) * | 1984-05-17 | 1985-11-21 | Georg Spiess Gmbh, 8906 Gersthofen | Vorrichtung zur bildung eines bogenstapels |
-
1985
- 1985-12-05 DE DE3543026A patent/DE3543026C1/de not_active Expired
-
1986
- 1986-10-22 DE DE8686114659T patent/DE3667956D1/de not_active Expired - Fee Related
- 1986-10-22 EP EP86114659A patent/EP0225455B1/fr not_active Expired - Lifetime
- 1986-10-23 CS CS867667A patent/CS270214B2/cs unknown
- 1986-12-02 SU SU864028579A patent/SU1544183A3/ru active
- 1986-12-03 US US06/937,271 patent/US4717141A/en not_active Expired - Lifetime
- 1986-12-03 DD DD86296993A patent/DD252590A5/de not_active IP Right Cessation
- 1986-12-04 JP JP61287878A patent/JPS62153057A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE721545C (de) * | 1940-11-29 | 1942-06-12 | Roland Offsetmaschf | Auslegevorrichtung mit einer als Bogenbremse benutzten Saugwalze fuer Druckmaschinen |
US3432161A (en) * | 1966-10-13 | 1969-03-11 | Lamb Grays Harbor Co Inc | Sheet control apparatus |
US3730517A (en) * | 1971-05-03 | 1973-05-01 | Harris Intertype Corp | Sheet conveyor apparatus and method |
EP0096276A2 (fr) * | 1982-06-03 | 1983-12-21 | Koenig & Bauer Aktiengesellschaft | Dispositif de sortie des feuilles pour presses rotatives |
DE3331129A1 (de) * | 1982-10-01 | 1984-04-05 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | Verfahren und vorrichtung zur zufuehrung von feuchtmittel in offsetdruckmaschinen |
Also Published As
Publication number | Publication date |
---|---|
US4717141A (en) | 1988-01-05 |
CS766786A2 (en) | 1989-10-13 |
DE3543026C1 (de) | 1987-04-02 |
EP0225455B1 (fr) | 1990-01-03 |
DE3667956D1 (de) | 1990-02-08 |
EP0225455A3 (en) | 1988-03-02 |
DD252590A5 (de) | 1987-12-23 |
SU1544183A3 (ru) | 1990-02-15 |
CS270214B2 (en) | 1990-06-13 |
JPS62153057A (ja) | 1987-07-08 |
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