DE10239708A1 - Device for guiding/slowing down sheets in the extension arm of a sheet-processing machine, especially a printing machine, comprises a sheet guiding surface having openings loaded with suction or blast air, and a gripping system - Google Patents

Device for guiding/slowing down sheets in the extension arm of a sheet-processing machine, especially a printing machine, comprises a sheet guiding surface having openings loaded with suction or blast air, and a gripping system Download PDF

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Publication number
DE10239708A1
DE10239708A1 DE10239708A DE10239708A DE10239708A1 DE 10239708 A1 DE10239708 A1 DE 10239708A1 DE 10239708 A DE10239708 A DE 10239708A DE 10239708 A DE10239708 A DE 10239708A DE 10239708 A1 DE10239708 A1 DE 10239708A1
Authority
DE
Germany
Prior art keywords
sheet
gripper
guiding
sheets
conveying
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
Application number
DE10239708A
Other languages
German (de)
Other versions
DE10239708B4 (en
Inventor
Michael Dr.-Ing. Koch
Jörg Dr.-Ing. Reber
Tilo Dipl.-Ing. Steinborn
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to DE10239708A priority Critical patent/DE10239708B4/en
Publication of DE10239708A1 publication Critical patent/DE10239708A1/en
Application granted granted Critical
Publication of DE10239708B4 publication Critical patent/DE10239708B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68Reducing the speed of articles as they advance
    • B65H29/683Slowing-down from chain delivery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/443Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4433Moving, forwarding, guiding material by acting on surface of handled material by means holding the material
    • B65H2301/44331Moving, forwarding, guiding material by acting on surface of handled material by means holding the material at particular portion of handled material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/60Other elements in face contact with handled material
    • B65H2404/61Longitudinally-extending strips, tubes, plates, or wires
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00Parts for holding the handled material
    • B65H2405/50Gripping means
    • B65H2405/51Gripping means oscillating in arcuate paths
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00Means using fluid
    • B65H2406/10Means using fluid made only for exhausting gaseous medium
    • B65H2406/11Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00Means using fluid
    • B65H2406/30Suction means
    • B65H2406/36Means for producing, distributing or controlling suction
    • B65H2406/365Means for producing, distributing or controlling suction selectively blowing or sucking

Abstract

The present invention relates to a device for guiding and braking of sheets in the boom of a sheet-processing machine, in particular printing press. DOLLAR A object of the invention is to provide such a device in which the sheets are braked reliably even at high processing speeds and stored edge to edge. DOLLAR A The object is achieved by a device consisting of a below the Bogenförderweges arranged sheet guiding device (8) with a Bogenleitfläche (4), the openings (9), which are acted upon with suction or blown air from a gripper system (5), that the respective sheet (1) in the vicinity of its trailing edge in a sheet transfer area (6) detected and transferred to the delivery stack (3), wherein the gripper system (5) after reaching the sheet transfer area (6) is braked and the sheet guide surface (4) having the gripper system (5) corresponding recesses (7) which pass through the gripper system (5) while it detects the respective sheet (1).

Description

  • The present invention relates refers to a device for guiding and braking of sheets in Boom of a sheet-processing machine, in particular printing machine.
  • The processed in the printing units of the printing press Sheets are taken from the last sheet-guiding cylinder of the press removed and from circulating transport systems to a delivery pile transported, where possible as accurate as possible should be stored on each other. To guide the one-sided or two-sided printed sheets are along the sheet transport path sheet guiding devices arranged with means for braking the abzulegenden Collaborate arc.
  • For the purpose of laying out of sheet is from the DE PS 394 052 DE a device known in which sheets are transported by a feeder to the delivery stack and detected at its trailing edge of grippers and stored against the direction of the execution movement on the delivery pile. The disadvantage of such a device is the heavy stress on the bow on train, which is associated with the reversal of motion. In addition, the sheet trailing edge can not be detected in particular by mechanical grippers with sufficient security.
  • The DE PS 627 851 describes a delivery device for sheet-fed printing presses, in which the sheets are transported with front edges fixed by front grippers in the direction of an outfeed pile and, before being deposited thereon, are grasped at their trailing edge by picking grippers. The Nachgreifer move after the release of the sheet leading edges at a delayed speed, so that the respective sheet is decelerated until it reaches approximately the horizontal speed zero. In the boom below the transport path of the sheet line serving steel rails are provided, which are mounted on mounting rails.
  • Is the respective arc recorded, it is braked in a gentle way. The detection of the sheet trailing edge but not with sufficient security. In particular in high-speed sheet-processing machines and / or in the Processing big Bogenformate arises under the respective bow a Schleppströmung, and the Bow trailing edge is lifted off the steel rails. As a result of drag flow and dependent From the parameters of the print job, the webs of the sheet trailing edge can edge from print job to print job, but also from sheet to sheet strong vary and outside lie the detection range of the trailing edge Nachgreifers.
  • The in the DE 197 39 893 A1 The disclosed sheet guiding device is arranged downstream of a guide device in the sheet transport direction and extends to a suction roller serving to decelerate the conveyed sheet. The sheet guiding device is articulated pivotably about a pivot point, mounted with a level in the printing pressure in the amount of the suction roll and a lowered in perfecting pressure from the pivot point in the direction of the suction roll level. In straight printing, it can be subjected to a negative pressure.
  • The disadvantage of such an arrangement is that the respective arc when braking on the Suction roll side facing due to the between suction roll and bow surface resulting slip is mechanically stressed. Especially at thin Papers exist, especially if they are at high speeds be processed, the risk of destruction of the bow as a result of By suction.
  • When the bow leaves the area where he is exposed to the braking action of the suction roll, he must, to his To reach final position on the delivery pile, still a distance in vertical and horizontal direction, in which he is not forced. Leading to an uneven sheet storage on the delivery pile and requires additional alignment equipment the sheet edge, e.g. in the form of attacks.
  • Due to the residual speed, with the bow bounce against such attacks, the Sheet edges damaged become.
  • The invention is based on the object, under Avoiding the aforementioned disadvantages, a device for conducting and braking of sheets in the boom of a sheet processing machine to create at the bow even at high processing speeds Reliable braked and stored edge to edge.
  • According to the invention this object is achieved with a Device of the type mentioned, the features of the claim 1 has. Advantageous embodiments are the subject of the dependent claims.
  • The present invention has the advantage that the trailing edge of the single-sided sheet is guided in the manner of forced operation on a sheet fed with suction sheet guiding surface or printed on both sides bow in Schwebführung on the acted upon with blowing air Bo geneleitfläche. By arranging corresponding with the gripper system recesses in the sheet guide, which can pass through the gripper system, it is achieved that the gripper system detects the respective sheet at the trailing edge, while this is still guided by the sheet guide. The movement of the gripper system provided for gripping the sheet trailing edge is due to the movement of the We kung of the suction air sucked to the sheet guide surface or tuned at a small distance above the sheet guide surface under the action of blowing air trailing sheet trailing edges. The trajectory of the sheet trailing edges always runs through an area in which the sheet trailing edges can be detected by the gripper system. The secure detection of the sheet is thus ensured regardless of grammage, format, processing speed or the thickness of the applied in the sheet processing machine paint and varnish layers.
  • In addition, with the on the arch over the openings the sheet guiding surface acting suction due to friction forces generated, which counter to the direction of movement act on the bow and these punish or an undesirable Buckling or counteract wrinkling. When leading by Double-sided printing can be done by applying the blast air Lubrication can be effectively avoided, which is safe Capture the bow but does not preclude.
  • It goes without saying that an embodiment of the invention, in which the sheet guiding device is supplied with blowing air is also suitable for detecting and braking of printed in straight printing sheet is.
  • The post-gripper system detects the Bow trailing edge and transferred the Bow on the delivery pile, slowing down gently and subsequently be stored edge to edge. This can provide additional facilities for alignment the bow on the delivery pile accounts.
  • The present invention is suitable therefore especially for The use in high - speed printing machines, the bow in beautiful printing or in the Nice- and printing on and for the processing of large format Bow are provided.
  • Finally, by the use a bow at the trailing edge grasping gripper system that Corridor-free printing possible.
  • Reference to an embodiment, the following Invention closer explained become. In the corresponding Drawings shows:
  • 1 the schematic representation of a portion of a boom, in which the device according to the invention for guiding and braking of sheets is arranged and 2 a plan view of the openings having sheet guide surface of the sheet guiding device.
  • As in 1 shown, are removed from the processing stations of a sheet-processing machine arc 1 of subsidies 2 gripper carriages carrying gripper carriages gripped at their leading edges and along a sheet conveying path to a delivery pile 3 fed. The gripper carriages are part of a chain 10 and not shown Kettenumlenkräder comprehensive circulating chain conveyor system.
  • Below the sheet conveying path is a over the width of the boom extending sheet guiding device 8th arranged on its side facing the Bogenförderweg a flat sheet guide surface 4 with openings 9 having. The openings 9 are above one below the arched surface 4 arranged tub interconnected. For generating the suction air or the blown air, an air supply device connected to the tub is provided. The air supply device can also be arranged in the trough.
  • For the guidance of printed in straight printing bow 1 is an admission with suction air and for the guidance of in perfecting printed sheet 1 a Blasluftbeaufschlagung provided. In an embodiment of the invention, not shown, are considered in the sheet conveying direction, at the beginning of the sheet guide 4 arranged openings 9 with blowing air and at the end of the sheet guiding surface 4 arranged openings 9 can be acted upon with suction air. In this for guiding printed in perfecting bow 1 intended execution are the bow 1 floating and guided only in the area of their trailing edges of the sheet guide 4 approximated. This minimizes the mechanical stress on the underside of the sheet, without affecting the sheet guiding surface 4 touch. This is achieved by keeping the intensity of the adjacent suction air small in comparison to the intensity of the applied blown air.
  • In sheet travel direction in front of the delivery pile 3 is a gripper system 5 provided, which serves the sheet braking and suction pads or over these preferred pliers gripper comprises, driven by a Kurvenkoppelgetriebe 11 after the beat of the incoming bow 1 describe an elliptical orbit. The gripper system 5 can handle the incoming bows 1 to detect when their trailing edges through a sheet takeover area 6 move. The sheet transfer area 6 is through the with the cam coupling 11 Realized movement and the movements specified when opening and closing the forceps gripper. The pincers are attached to the trailing edges of the moving bow 1 introduced so that they in the sheet transfer area 6 can be detected. Subsequently, the gripper system leads 5 the bows 1 after its leading edges from the conveyors 2 were released to the delivery pile 3 on which they are released by the gripper system 5 be filed.
  • The path of the gripper system 5 and the opening curve of the gripper system 5 included pliers gripper is set so that these are under the action of suction on the sheet guide 4 or under the action of blowing air at a small distance above the sheet guide surface 4 out bow 1 capture safely.
  • On her the delivery pile 3 facing side, the sheet guide surface 4 with the gripper system 5 corresponding recesses 7 which are slightly larger than the forceps grippers of the gripper system 5 and the gripper system 5 happens while there is the respective bow 1 detected.
  • By such a design of the sheet guiding surface 4 The pincers can grip the trailing edges of the arch 1 capture while the bow 1 still from the sheet guiding surface 4 be guided. The arrangement of recesses 7 thus enables the combination of a floating and lubrication-free sheet guide on a sheet guiding surface 4 , with a bow 1 gently decelerating and edge-precise on the delivery pile 3 depositing braking device in the form of acting as a trailing edge gripper rapier system 5 ,
  • The sheet guiding surface 4 and the gripper system 5 are arranged to format adaptation to each other and slidably along the Bogenförderweges.
  • In a variant of the invention, not shown, the sheet guiding surface 4 to vote the Bogenförderweges on the sheet transfer area 6 on their gripper system 5 facing side arranged infinitely adjustable in height. For this purpose, it can be articulated and designed to be pivotable or flexible relative to the machine frame.
  • 1
    bow
    2
    funding
    3
    delivery pile
    4
    sheet guide surface
    5
    gripper system
    6
    Arc-over zone
    7
    recesses
    8th
    sheet guiding device
    9
    openings
    10
    Chain
    11
    Curve linkage

Claims (10)

  1. Device for guiding and braking sheets in the delivery of a sheet-processing machine, in particular a printing press, which is fed along an sheet conveying path to a delivery pile ( 3 ) are transported, - consisting of a below the Bogenförderweges arranged sheet guiding device ( 8th ) with a sheet guide surface ( 4 ) the openings ( 9 ), which can be acted upon by suction air or blowing air, - further comprising a gripper system ( 5 ), which the respective bow ( 1 ) near its trailing edge in a sheet transfer area ( 6 ) and on the delivery pile ( 3 ), whereby - the gripper system ( 5 ) after reaching the sheet acceptance area ( 6 ) is braked and - the sheet guide ( 4 ) with the gripper system ( 5 ) corresponding recesses ( 7 ), which the gripper system ( 5 ) happens while it is the respective arc ( 1 ) detected.
  2. Apparatus for conveying sheets according to claim 1, wherein the sheet transfer area ( 6 ) with the sheet guide surface ( 4 ) is approximately in one plane.
  3. A sheet conveying apparatus according to claim 1 or 2, wherein those adjacent to the recesses ( 7 ) arranged openings ( 9 ) with suction air and the to the recesses ( 7 ) spaced openings ( 9 ) can be acted upon with blown air.
  4. Device for conveying sheets according to one of the preceding claims, wherein the sheet guiding surface ( 4 ) and the gripper system ( 5 ) are displaced to format adaptation along the Bogenförderweges displaceable.
  5. Device for conveying sheets according to one of the preceding claims, wherein the openings ( 9 ) via one below the sheet guide surface ( 4 ) arranged tub are interconnected.
  6. Device for conveying sheet according to claim 5, wherein the tray is provided with an air supply device, with the optional blowing or suction air can be generated, is connected.
  7. Device for conveying sheet according to claim 6, wherein the air supply device is arranged in the tub.
  8. Device for conveying sheets according to one of the preceding claims, wherein the gripper system ( 5 ) Pliers gripper and a cam coupling gear ( 11 ).
  9. Device for conveying sheets according to one of the preceding claims, wherein the sheet guiding surface ( 4 ) for matching the sheet conveying path to the sheet transfer area ( 6 ) on their gripper system ( 5 ) facing side is arranged height adjustable.
  10. Apparatus for conveying sheets according to claim 9, wherein the sheet guiding surface ( 4 ) is pivotally mounted pivotably about a pivot point.
DE10239708A 2002-08-29 2002-08-29 Device for guiding and braking sheets in the delivery of a sheet-processing machine, in particular printing press Expired - Fee Related DE10239708B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10239708A DE10239708B4 (en) 2002-08-29 2002-08-29 Device for guiding and braking sheets in the delivery of a sheet-processing machine, in particular printing press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10239708A DE10239708B4 (en) 2002-08-29 2002-08-29 Device for guiding and braking sheets in the delivery of a sheet-processing machine, in particular printing press

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DE10239708A1 true DE10239708A1 (en) 2004-03-11
DE10239708B4 DE10239708B4 (en) 2013-10-17

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762521A3 (en) * 2005-09-08 2007-03-21 Komori Corporation Delivery device in sheet-fed offset rotary printing press
WO2012139773A2 (en) 2011-04-15 2012-10-18 Muehlbauer Ag Device and method for setting down sheet-like products
CN103130003A (en) * 2011-11-28 2013-06-05 日高精机株式会社 Feeding apparatus for metal strips

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE394052C (en) * 1923-03-07 1924-04-12 Alfred Fallot An apparatus for laying sheets to sheet-fed printing machines
DE627851C (en) * 1934-07-18 1936-03-25 Maschf Augsburg Nuernberg Ag Delivery device for sheet-fed presses
DE1636316A1 (en) * 1966-03-22 1971-03-18 Harris Intertype Corp Verzoegerungseinrichtung for Bogenauslegevorrichtung
DE19628620A1 (en) * 1995-08-08 1998-01-29 Heidelberger Druckmasch Ag Guide for a freshly printed sheet
DE19739893A1 (en) * 1997-09-11 1999-03-18 Koenig & Bauer Ag Paper sheet feed machine for printing press

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE394052C (en) * 1923-03-07 1924-04-12 Alfred Fallot An apparatus for laying sheets to sheet-fed printing machines
DE627851C (en) * 1934-07-18 1936-03-25 Maschf Augsburg Nuernberg Ag Delivery device for sheet-fed presses
DE1636316A1 (en) * 1966-03-22 1971-03-18 Harris Intertype Corp Verzoegerungseinrichtung for Bogenauslegevorrichtung
DE19628620A1 (en) * 1995-08-08 1998-01-29 Heidelberger Druckmasch Ag Guide for a freshly printed sheet
DE19739893A1 (en) * 1997-09-11 1999-03-18 Koenig & Bauer Ag Paper sheet feed machine for printing press

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762521A3 (en) * 2005-09-08 2007-03-21 Komori Corporation Delivery device in sheet-fed offset rotary printing press
WO2012139773A2 (en) 2011-04-15 2012-10-18 Muehlbauer Ag Device and method for setting down sheet-like products
DE102011017217A1 (en) 2011-04-15 2012-10-18 Mühlbauer Ag Apparatus and method for depositing sheet products
CN103130003A (en) * 2011-11-28 2013-06-05 日高精机株式会社 Feeding apparatus for metal strips
CN103130003B (en) * 2011-11-28 2016-05-18 日高精机株式会社 The feeder unit that metal band-shaped body is used

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Publication number Publication date
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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT, 97080 WüRZB, DE

8110 Request for examination paragraph 44
R018 Grant decision by examination section/examining division
R020 Patent grant now final

Effective date: 20140118

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20140301