US3819032A - Cleaning apparatus for a sheet delivery mechanism - Google Patents

Cleaning apparatus for a sheet delivery mechanism Download PDF

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Publication number
US3819032A
US3819032A US00293065A US29306572A US3819032A US 3819032 A US3819032 A US 3819032A US 00293065 A US00293065 A US 00293065A US 29306572 A US29306572 A US 29306572A US 3819032 A US3819032 A US 3819032A
Authority
US
United States
Prior art keywords
chain
housing
grippers
powder
sheets
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 - Lifetime
Application number
US00293065A
Other languages
English (en)
Inventor
F Preuss
C Simeth
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.)
Roland Offsetmaschinenfabrik Faber and Schleicher AG
Original Assignee
Roland Offsetmaschinenfabrik Faber and Schleicher 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
Priority claimed from DE19712148757 external-priority patent/DE2148757C/de
Application filed by Roland Offsetmaschinenfabrik Faber and Schleicher AG filed Critical Roland Offsetmaschinenfabrik Faber and Schleicher AG
Application granted granted Critical
Publication of US3819032A publication Critical patent/US3819032A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/23—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
    • B65H2301/531—Cleaning parts of handling machine
    • 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

  • FIG. 1 is a diagrammatic side elevational view of a delivery mechanism for a sheet-fed printing press embodying the present invention.
  • FIG. 2 is a sectional view of the cleaning apparatus taken on section line 2-2 of FIG. 3.
  • FIG. 2a is a diagram showing use of cooperating rotary brushes.
  • FIG. 3 is a sectional view looking along section line 33 in FIG. 2.
  • FIG. 1 a chain conveyor 2 having lower and upper portions defining delivery and return runs respectively.
  • the sheets 1 are transferred from a conventional lithographic printing press (not shown) and moved along the lower run of the chain to a position over the delivery pile 3 where they are released and allowed to drop onto the pile.
  • the conveyor 2, as is well known, is formed of endless chains 4,5 mounting a series of gripper assemblies 6 (see also FIG. 3)..
  • the sheets are released onto the delivery pile 3 by conventional means with the help of a braking device 7 at the rear edge and a jogger device 8 at the leading edge of the pile.
  • the sheets in the pile are supported by a pile board 9 arranged to be progressively lowered by a conventional pile elevator 10 as the height of the pile increases.
  • sheets 1 as they arrive fresh from the press are, during transfer, coated with absorbent powder, as is well known in the art, and it will also be understood that some of the powder will be deposited, rather unavoidably, on the chain and grippers.
  • a cleaning apparatus incorporating an evacutated housing mounted at right angles to the running direction of the chain conveyor and extending transversely over the width of the conveyor having diametrically disposed openings in the side walls thereof which define the passage through which the chain conveyor passes, the casing including at least one pair of brushesextending transversely of the width of the conveyor and being disposed opposite each other to allow the chain conveyor to pass between the brushes.
  • the casing including at least one pair of brushesextending transversely of the width of the conveyor and being disposed opposite each other to allow the chain conveyor to pass between the brushes.
  • two pairs of brushes are used, spaced along the path of conveyor movement.
  • the cleaning apparatus identified as 11 is mounted to cooperate with the return run 2a of the endless chain conveyor i.e., in the region following release at the delivery pile 3 (FIG. 1).
  • the cleaning apparatus is formed of cooperating upper and lower sections 12,13 (FIG. 2) defining an inletopening 45 and an outlet opening 46 extending transversely of the entire width of the conveyor 2, the ends of the sections 12,13 being enclosed by side plates 14,15.
  • the upper section 12 is fixed to the side plates 14,15 by means of screws 24,25 and may be loosened from the lower section 13 of the housing.
  • the lower section 13 of the housing is preferably formed as a funnelshaped trough or receptacle, the bottom of which has an opening 34 through which the dust brushed off from the gripper assemblies 6 may be exhausted. Communicating with the opening 34 is a suction tube 35 which leads, via a chamber 36, to an exhaust fan (not shown). It will be understood that each gripper assembly 6 (FIG.
  • the operation of the cleaning apparatus is as follows: Referring to FIG. 2, the gripper assemblies 6 enter the cleaning apparatus 11 through the opening 45, on the upstream side and pass between the successive pairs of brushes 28,32 and 29,33, with the result that any powder is removed by the action of the brushes. After having passed the last set of brushes the gripper assemblies leave the cleaning apparatus through the downstream opening 46. The powder removed from the gripper carriages falls down into the funnel-shaped lower section 13 of the casing 11 where it is exhausted through the suction tube 35.
  • the brushes may be of the rotary type extending the width of the conveyor as is shown at 28a,32a in FIG. 2a in lieu of fixed brushes 28,32.
  • the rotary brushes may be of cylindrical shape mounted on respective shafts journaled in suitable bearings (not shown).
  • the housing may be equipped with blast nozzles N which may be connected to a suitable source of compressed air and directed against the chain conveyor in order to augment the cleaning operation of the brushes. Due to the construction and evacuation of the housing the disposed powder
  • the inlet opening 45 and outlet 46 provide the sole communication with ambient air so that there is an induced inward flow of air through the opening to prevent unwanted escape of the powder outwardly of the openings.
  • the vacuum in the suction tube 35 is made sufficiently great so that the rate of air flow through the suction tube substantially exceeds the rate of air flow through the nozzles and so that, notwithstanding the nozzles, there is a net inward flow of air through the openings 45,46.
  • a delivery mechanism for sheet fed printing presses in which grippers for the sheets are provided on an endless chain for conveying the sheets fresh from the press to a delivery pile and for travel along a return path back to the press after the sheets have been deposited on said delivery pile and in which means are provided in the path of movement of the conveyor from the press to the pile for dusting the sheets with powder
  • the improvement which comprises a cleaning apparatus in the return path having means impingeing upon the chain and grippers continuously incident to the movement thereof for mechanically dislodging and evacuating the powder deposited thereon, said cleaning apparatus and means thereof comprising:
  • pairs of opposed brushes disposed within said housing and each opposed brush in contact with substantially all portions of said chain and grippers which travels therebetween;
  • air nozzle means disposed within said housing and directed at said chain and grippers;
  • vacuum means to exhaust said housing whereby to remove all powder dislodged by said brushes and air nozzles and whereby to induce air flow inwardly through said entrance and exit means to inhibit escape of dislodged powder.
  • the housing includes an upper portion and a lower portion defining said entrance and exit means and wherein said upper and lower portions are separable to permit installation around an existing endless chain while keeping the chain intact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Pile Receivers (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
US00293065A 1971-09-30 1972-09-28 Cleaning apparatus for a sheet delivery mechanism Expired - Lifetime US3819032A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712148757 DE2148757C (de) 1971-09-30 Reinigungsgerät für eine Bogenauslegevorrichtung

Publications (1)

Publication Number Publication Date
US3819032A true US3819032A (en) 1974-06-25

Family

ID=5821005

Family Applications (1)

Application Number Title Priority Date Filing Date
US00293065A Expired - Lifetime US3819032A (en) 1971-09-30 1972-09-28 Cleaning apparatus for a sheet delivery mechanism

Country Status (6)

Country Link
US (1) US3819032A (enExample)
CH (1) CH537331A (enExample)
DE (1) DE2148757B1 (enExample)
FR (1) FR2155343A5 (enExample)
GB (2) GB1391470A (enExample)
IT (1) IT967986B (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611989A (en) * 1985-08-28 1986-09-16 Erik Kersting Horizontally extending curing devices
US4960200A (en) * 1989-08-04 1990-10-02 Mepaco, Inc. Conveyer belt cleaning and sanitizing apparatus
US5293985A (en) * 1992-05-11 1994-03-15 Alvarez Rick E Cleaning device for dry cleaning conveyor
US5372242A (en) * 1993-07-07 1994-12-13 Lubecon Systems, Inc. Air blow-off shroud
US5649616A (en) * 1996-04-11 1997-07-22 Stecklow; Richard L. Conveyor chain cleaning apparatus
US5671838A (en) * 1996-04-02 1997-09-30 Bowman; John H. Apparatus for cleaning of conveyors
USD387861S (en) * 1994-05-30 1997-12-16 Kongskilde Maskinfabrik A/S Blower-unit for a modular pneumatic transport system
US5746302A (en) * 1996-04-02 1998-05-05 Bowman; John H. Apparatus for cleaning conveyors
WO2000029215A1 (de) * 1998-11-16 2000-05-25 Heidelberger Druckmaschinen Ag Bogenoffsetdruckverfahren und bogenoffsetdruckmaschine
US6732854B2 (en) * 2001-11-15 2004-05-11 Gerber Technology, Inc. Bristle bed cleaner and method
US6802256B1 (en) * 1998-01-20 2004-10-12 Heidelberger Druckmaschinen Ag Method and device for preventing uncontrolled spread of powder in a printing machine
US20110024265A1 (en) * 2007-12-17 2011-02-03 Olivier Kleynen Receiving and Conveying Device
US20110079153A1 (en) * 2009-10-02 2011-04-07 Poly-Clip System Gmbh & Co. Kg System for storing products
US20120067699A1 (en) * 2009-06-03 2012-03-22 Fameccanica.Data S.P.A. Conveyor device for laser treatments
US20150114245A1 (en) * 2012-04-19 2015-04-30 Sasu Vianord Engineering Method and apparatus for the photopolymerization and the washing in series of digital printing plates for flexography
CN106423932A (zh) * 2015-08-11 2017-02-22 苏州市铂汉塑胶五金有限公司 一种喷涂生产线链条在线清洁机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19901670C5 (de) * 1998-01-20 2016-11-03 Hans-Peter Koch Verfahren und Vorrichtung zum Sauberhalten und/oder Reinigen einer Bogenauslage einer Bogenoffsetdruckmaschine
DE10056245B4 (de) * 1999-12-02 2009-10-15 Heidelberger Druckmaschinen Ag Schmutzabstreifer

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US41029A (en) * 1863-12-22 Bftonzing-machine
US311612A (en) * 1885-02-03 Dfventoe
US407309A (en) * 1889-07-16 of nottingham
AT6929B (de) * 1901-04-16 1902-03-10 Friedrich Wilhelm Koffler Verfahren und Vorrichtung zum Reinigen von Teppichen.
US1089453A (en) * 1913-06-27 1914-03-10 Autoplate Company Of America Web-treating device for printing-presses.
US1239815A (en) * 1915-05-25 1917-09-11 Peters Patent Rights Company Pneumatically-controlled blank-gumming machine.
US1696171A (en) * 1926-08-06 1928-12-18 Lipsius Samuel Automatic powdering machine
US1698405A (en) * 1922-07-31 1929-01-08 American Laundry Mach Co Collar-conditioning apparatus
DE488360C (de) * 1926-09-30 1929-12-24 Ullstein Akt Ges Vorrichtung zum Abbuersten und Absaugen des Staubes von beiden Seiten einer zu bedruckenden Papierbahn
US2003267A (en) * 1933-03-21 1935-05-28 Smith Gabriel Machine for dusting sheet materials
US2015583A (en) * 1932-10-24 1935-09-24 Bartsch Alfred Cleaning machine
DE629418C (de) * 1932-10-25 1936-04-30 Alfred Bartsch Abstaubvorrichtung
US2181266A (en) * 1938-06-02 1939-11-28 Art O Graphic Printing Company Cleaning brush
US2759449A (en) * 1954-10-05 1956-08-21 Lindquist Theodore Flock applying machine
US2889805A (en) * 1955-01-21 1959-06-09 Goodrich Co B F Electrostatic flocking apparatus

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US311612A (en) * 1885-02-03 Dfventoe
US407309A (en) * 1889-07-16 of nottingham
US41029A (en) * 1863-12-22 Bftonzing-machine
AT6929B (de) * 1901-04-16 1902-03-10 Friedrich Wilhelm Koffler Verfahren und Vorrichtung zum Reinigen von Teppichen.
US1089453A (en) * 1913-06-27 1914-03-10 Autoplate Company Of America Web-treating device for printing-presses.
US1239815A (en) * 1915-05-25 1917-09-11 Peters Patent Rights Company Pneumatically-controlled blank-gumming machine.
US1698405A (en) * 1922-07-31 1929-01-08 American Laundry Mach Co Collar-conditioning apparatus
US1696171A (en) * 1926-08-06 1928-12-18 Lipsius Samuel Automatic powdering machine
DE488360C (de) * 1926-09-30 1929-12-24 Ullstein Akt Ges Vorrichtung zum Abbuersten und Absaugen des Staubes von beiden Seiten einer zu bedruckenden Papierbahn
US2015583A (en) * 1932-10-24 1935-09-24 Bartsch Alfred Cleaning machine
DE629418C (de) * 1932-10-25 1936-04-30 Alfred Bartsch Abstaubvorrichtung
US2003267A (en) * 1933-03-21 1935-05-28 Smith Gabriel Machine for dusting sheet materials
US2181266A (en) * 1938-06-02 1939-11-28 Art O Graphic Printing Company Cleaning brush
US2759449A (en) * 1954-10-05 1956-08-21 Lindquist Theodore Flock applying machine
US2889805A (en) * 1955-01-21 1959-06-09 Goodrich Co B F Electrostatic flocking apparatus

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611989A (en) * 1985-08-28 1986-09-16 Erik Kersting Horizontally extending curing devices
US4960200A (en) * 1989-08-04 1990-10-02 Mepaco, Inc. Conveyer belt cleaning and sanitizing apparatus
US5293985A (en) * 1992-05-11 1994-03-15 Alvarez Rick E Cleaning device for dry cleaning conveyor
US5372242A (en) * 1993-07-07 1994-12-13 Lubecon Systems, Inc. Air blow-off shroud
USD387861S (en) * 1994-05-30 1997-12-16 Kongskilde Maskinfabrik A/S Blower-unit for a modular pneumatic transport system
US5671838A (en) * 1996-04-02 1997-09-30 Bowman; John H. Apparatus for cleaning of conveyors
US5746302A (en) * 1996-04-02 1998-05-05 Bowman; John H. Apparatus for cleaning conveyors
US5649616A (en) * 1996-04-11 1997-07-22 Stecklow; Richard L. Conveyor chain cleaning apparatus
US6802256B1 (en) * 1998-01-20 2004-10-12 Heidelberger Druckmaschinen Ag Method and device for preventing uncontrolled spread of powder in a printing machine
WO2000029215A1 (de) * 1998-11-16 2000-05-25 Heidelberger Druckmaschinen Ag Bogenoffsetdruckverfahren und bogenoffsetdruckmaschine
US6606946B2 (en) 1998-11-16 2003-08-19 Heidelberger Druckmaschinen Ag Sheet-fed offset printing process and sheet-fed offset printing machine
US6732854B2 (en) * 2001-11-15 2004-05-11 Gerber Technology, Inc. Bristle bed cleaner and method
US20110024265A1 (en) * 2007-12-17 2011-02-03 Olivier Kleynen Receiving and Conveying Device
US8333273B2 (en) * 2007-12-17 2012-12-18 Visar Receiving and conveying device
US20120067699A1 (en) * 2009-06-03 2012-03-22 Fameccanica.Data S.P.A. Conveyor device for laser treatments
US8668076B2 (en) * 2009-06-03 2014-03-11 Fameccanica.Data S.P.A. Conveyor device for laser treatments
US20110079153A1 (en) * 2009-10-02 2011-04-07 Poly-Clip System Gmbh & Co. Kg System for storing products
US10051871B2 (en) * 2009-10-02 2018-08-21 Poly-Clip System Gmbh & Co. Kg System for transporting sausages
US20150114245A1 (en) * 2012-04-19 2015-04-30 Sasu Vianord Engineering Method and apparatus for the photopolymerization and the washing in series of digital printing plates for flexography
US9463617B2 (en) * 2012-04-19 2016-10-11 Sasu Vianord Engineering Method and apparatus for the photopolymerization and the washing in series of digital printing plates for flexography
CN106423932A (zh) * 2015-08-11 2017-02-22 苏州市铂汉塑胶五金有限公司 一种喷涂生产线链条在线清洁机

Also Published As

Publication number Publication date
DE2148757B1 (de) 1972-09-07
IT967986B (it) 1974-03-11
GB1391469A (en) 1975-04-23
GB1391470A (en) 1975-04-23
CH537331A (de) 1973-05-31
FR2155343A5 (enExample) 1973-05-18

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