US3754755A - Device for registering sheets on feed board of sheet fed printing machines - Google Patents

Device for registering sheets on feed board of sheet fed printing machines Download PDF

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Publication number
US3754755A
US3754755A US00274609A US3754755DA US3754755A US 3754755 A US3754755 A US 3754755A US 00274609 A US00274609 A US 00274609A US 3754755D A US3754755D A US 3754755DA US 3754755 A US3754755 A US 3754755A
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US
United States
Prior art keywords
sheet
guide member
side guide
sheets
edge
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
US00274609A
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English (en)
Inventor
K Krochert
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 DE19712137661 external-priority patent/DE2137661C/de
Application filed by Roland Offsetmaschinenfabrik Faber and Schleicher AG filed Critical Roland Offsetmaschinenfabrik Faber and Schleicher AG
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Publication of US3754755A publication Critical patent/US3754755A/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
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/04—Fixed or adjustable stops or gauges

Definitions

  • a further object is in providing an improved sheet registering arrangement which effectively registers all sheets encountered during a given production run without necessitating multiple adjustments of the registering guide means during the run.
  • An additional object resides in providing a registering arrangement having the attributes identified in the foregoing objects in which the side guide means is easily adjustable prior to a production run to accommodate a given batchof sheets with a substantially uniform trimming angle.
  • Yet a further object of the present invention is to provide a sheet registering arrangement wherein improved sheet register is achieved singularly through novel side guide means thereby permitting the use of customary sheet feeding and transfer mechanisms.
  • FIG. I is a side elevation, partly diagrammatic, of the sheet registering device and adjacent portion of a printing unit.
  • FIG. 2 is a top view of the feed table looking along the line 2-2 of FIG. I" and showing the sheet profile.
  • FIG. 3 is a view in elevation of a side guide assembly looking along the line 3-3 in FIG. 1.
  • FIG. 5 is a top view of the side guide memb'er 'illustrated in FIG. 4.
  • FIG. 6 is a view similar to FIG. 4 showing an alternate pivoting means.
  • FIG. 7 is a fragmentary top view showing a guide member including light biasing spring for defining the neutral position.
  • FIG. 8 is a diagrammatic plan illustrating the dislodgement which may take place with conventional side guide members.
  • FIG. 9 shows successful registration of a sheet having angular error.
  • FIGS. 10 and 11 are fragmentary side and top views respectively of a modification which permits adjustment of neutral angle.
  • FIGS. 1 and 2 there is shown a printing press 10 having an impression cylinder 11 cooperating with a printing cylinder 12, the two cylinders being driven in the conventional way by a.press drive 13. Sheets of paper to be printed by these cylinders are of nominally rectangular shape as shown at 15 in FIG. 2
  • a side guide member is provided located at one side of the feed board for registering the side edge of the sheets, with the sheets being fed one by one onto the feed board along a path which clears the side guide member by a relatively small amount of clearance as the sheets move into seated engagement with the front guide means.
  • Means are provided adjacent the side guide member and synchronized with the arrival of the sheet at the front guide means for urging the sheet laterally into engagement with the side guide member, the side guide member being in the form of a short length of fence" presenting a vertical sheet-engaging face which extends both upwardly and downwardly with respect to the surface of the feedboard, the side guide member being pivoted for rotation about a vertically extending pivot so that when a sheet is urged laterally into engagement with the guide member it is swiveled into self-alignment with the presented edge of the sheet.
  • a typical side guide member is shown in the form of a short length of fence" presenting a face 3] to the edge 17 of the sheet 15.
  • the side guide member has a bracket or mounting portion 32 which swings about a vertically arranged bolt 33 providing a loose swivel type joint and which is screwed into a mount 34.
  • the mount presents corners 35 for limiting the range of swiveling movement to a matter of a few degrees.
  • the presented face 31, as will be noted, extends both above and below the surface of the table 20 so as to be sure to be in the path of movement of the edge 17 of the sheet.
  • the side guide member 31 may have a length on the order ofa few inches so that the alignment forces are not overly concentrated upon the edge and so that sufficient torque is developed, upon engagement, to bring about the selfaligning action.
  • the bell crank 46 To lift the roller 44 clear of the feed board to clear an incoming sheet, and, again, to lift the roller at the time that the sheet is transferred, the bell crank 46 includes a downwardlyextending arm 46c which engages a box cam member 50 mounted upon a reciprocating rod 51.
  • Means are, moreover, provided for raising the side guide member 30 free of the feed board during the time that a sheet is being fed and removed and in synchronism with the vertical motions of the backup roller 44.
  • the bracket, or mount, 34 for the side guide is secured to a second bell crank 52 which is also rotatable about the pivot 47 and which is also biased for movement in the direction of the feed board, such bias being provided by a spring 53 which acts upon an arm 52a of the bell crank 52.
  • the level of the bracket, or mount, 34 and hence the level of the side guide member 30, is determined by a stop 55 in the form of an adjusting screw 56 having a lock nut 57.
  • a guard plate 58 is secured, as shown, to the underside of the bracket 34.
  • FIGS. 4 and 5 While a simple form of swivel connection is shown in FIGS. 4 and 5, there is an alternate form disclosed in FIG. 6 in which corresponding parts are correspondingly numbered with addition of subscript a.
  • the side guide member 30a is secured to the bracket 34a by means of a pivot pin 33a.
  • the sheet alone determines the angle of orientation of the guide member.
  • lightly biased means are provided for maintaining the side guide member centered at a neutral" or normal orientation at all times when the guide member is not engaged by the sheet, the neutral position approximating the position the guide member will occupy when fully engaged by the sheet.
  • the guide member 30b is mounted upon the bracket 34b by a pin 33b to provide free swiveling action.
  • the neutral" position of the guide member is determined by light biasing springs 71, 72 which provide opposing torques.
  • FIGS. 10 and 11 As a still further refinement of the construction means may be provided for varying the neutral position of a spring-centered guide member as shown in FIGS. 10 and 11, where corresponding elements are indicated by corresponding numerals with addition of subscript c.
  • the guide member 30c is mounted upon bracket 340 by means of a vertical pivot pin 33c.
  • Mounted upon the guide member so as to form a rigid extension of it is an arm to which is attached a coil spring 81, the other end of which is mounted upon an adjustable slide 82.
  • the slide may be guided in an arcuate slot 83 and may be adjusted, as shown, with respect to a graduated scale 84.
  • the slide 82 may be adjusted in angular position so as to center the side guide member 300 in an optimum position to receive the edge of the sheet, with any minor variations in angle from sheet to sheet being accommodated by slight skewing movement of the guide member against the restoring force of the spring 81.
  • the rod 50 is drawn to the right.
  • This causes the bell crank 46 to be rotated counterclockwise under the urging of the spring 48 so that the backup roller 44 is in working position.
  • This permits the bell crank 52 to rock counterclockwise under the urging of the spring 53 until the stop 55 is engaged to position the guide member 30 in its edge-receiving position.
  • the wiper arm swinging in the clockwise direction, applies scuffing force to the undersideof the sheet causing the sheet to be translated in the direction of the side guide member 30.
  • the edge of the sheet engages the guide member it causes it to swivel through a small angle until the presented face 31 of the guide member is aligned with, and coincides with, the presented portion of the sheet edge, after which no further movement takes place.
  • the wiper arm 44 is in general alignment with the pivot 33, and that its motion is parallel to the front guide means, the sheet, during translation, will remain in contact with the front guide means, with the 'side guide member 30 moving, of itself, to a final position in which it precisely coincides with the sheet edge regardless of whether the sheet is cut perfectly square.
  • the final position of the sheet is as shown in FIG. 9 in which the sheet simultaneously engages all of the registering guide members 21, 22 and 30.
  • the pregripper 25 engages the leading edge and the front guide means 21, 22 is swung downwardly by the synchronizing means 27.
  • the backup roller 44 and the side guide member 30 are raised clear of the sheet.
  • the sheet is free to move in its registered position on the pregripper 25 for transfer to suitable grippers on the impression cylinder 11 where the condition of register is preserved until the sheet is subjected to an impression from the printing cylinder 12.
  • central portion as applied to the swivel axis of the guide member will be understood to mean a position which is spaced well inwardly from the ends and which is preferably symmetrically related to the ends.
  • a sheet registering arrangement for positioning sheets prior to take-off and transfer to a printing unit comprising a feed board, extensive front guide means located in obstructing transfer alignment at the front edge of the board for registering the leading edge of the sheets, a side guide member located at one side of said feed board for registering the side edge of the sheets, means for feeding sheets one by one onto the feed board along a path which clears the side guide member by a relatively small amount of clearance and into seated engagement with the front guide means, means adjacent the side guide member and synchronized with the arrival of the sheet at the front guide means for urging the sheet laterally into engagement with the side guide member, the side guide member being in the form of a short length of fence presenting a vertical sheet engaging face which extends both upwardly and downwardly a short distance with respect to the surface of the feed board, and means including a vertically extending pivot at the central portion of the guide mem.- her and upon which the guide member is free to swivel so that when the presented edge of a sheet being in

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  • Pile Receivers (AREA)
  • Registering Or Overturning Sheets (AREA)
US00274609A 1971-07-28 1972-07-24 Device for registering sheets on feed board of sheet fed printing machines Expired - Lifetime US3754755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712137661 DE2137661C (de) 1971-07-28 Seitenmarke zum seitlichen Ausrichten eines Bogens auf dem Anlagetisch einer bogenverarbeitenden Maschine

Publications (1)

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US3754755A true US3754755A (en) 1973-08-28

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US00274609A Expired - Lifetime US3754755A (en) 1971-07-28 1972-07-24 Device for registering sheets on feed board of sheet fed printing machines

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US (1) US3754755A (de)
DE (1) DE2137661B1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060237A (en) * 1976-02-05 1977-11-29 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Sheet positioning mechanism for feed table of a sheet-fed printing press
US5085418A (en) * 1990-11-23 1992-02-04 Eastman Kodak Company Recirculating document feeder having a cross-track registration mechanism and method
US5215302A (en) * 1992-05-28 1993-06-01 Eastman Kodak Company Registration mechanism for sheets of different sizes
US5820123A (en) * 1995-01-21 1998-10-13 Heidelberger Druckmaschinen Ag Method and device for aligning a sheet on a feeder table of a sheet-fed rotary printing press
EP0999018A3 (de) * 1998-11-05 2001-09-26 Baumann Maschinenbau Solms GmbH & Co. KG Schneidanlage
US20030042664A1 (en) * 2001-09-03 2003-03-06 Paul Leys Method and device for aligning sheets
US6532869B2 (en) * 1999-12-01 2003-03-18 Ryobi Ltd. Offset printer having sheet feed mechanism
US20050133989A1 (en) * 2003-12-17 2005-06-23 Hiroyuki Sarada Sheet positioning apparatus in a sheet feeding section of a printing press
US20050132918A1 (en) * 2003-10-20 2005-06-23 Stephan Schultze Method and device for correcting the positional deviation of a conveyed item

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235917A1 (de) * 1992-10-23 1994-04-28 Heidelberger Druckmasch Ag Vorrichtung zum Ausrichten der Bogenvorderkante von Papierbogen in Papierbogen verarbeitenden Maschinen
DE29607343U1 (de) * 1996-04-23 1996-07-18 MAN Roland Druckmaschinen AG, 63075 Offenbach Bogenführungseinrichtung an einer Seitenziehvorrichtung für eine Bogenverarbeitungsmaschine
JP2000007163A (ja) * 1998-06-22 2000-01-11 Mitsubishi Heavy Ind Ltd 段ボール製函機の給紙装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567356A (en) * 1896-09-08 parker
US2803460A (en) * 1953-03-20 1957-08-20 Planeta Veb Druckmasch Werke Sheet feeding
US3178176A (en) * 1963-01-21 1965-04-13 Miehle Goss Dexter Inc Side registering mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567356A (en) * 1896-09-08 parker
US2803460A (en) * 1953-03-20 1957-08-20 Planeta Veb Druckmasch Werke Sheet feeding
US3178176A (en) * 1963-01-21 1965-04-13 Miehle Goss Dexter Inc Side registering mechanism

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060237A (en) * 1976-02-05 1977-11-29 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Sheet positioning mechanism for feed table of a sheet-fed printing press
US5085418A (en) * 1990-11-23 1992-02-04 Eastman Kodak Company Recirculating document feeder having a cross-track registration mechanism and method
US5215302A (en) * 1992-05-28 1993-06-01 Eastman Kodak Company Registration mechanism for sheets of different sizes
US5820123A (en) * 1995-01-21 1998-10-13 Heidelberger Druckmaschinen Ag Method and device for aligning a sheet on a feeder table of a sheet-fed rotary printing press
EP0999018A3 (de) * 1998-11-05 2001-09-26 Baumann Maschinenbau Solms GmbH & Co. KG Schneidanlage
US6532869B2 (en) * 1999-12-01 2003-03-18 Ryobi Ltd. Offset printer having sheet feed mechanism
US20030042664A1 (en) * 2001-09-03 2003-03-06 Paul Leys Method and device for aligning sheets
US6666451B2 (en) * 2001-09-03 2003-12-23 Agfa-Gevaert Method and device for aligning sheets
US20050132918A1 (en) * 2003-10-20 2005-06-23 Stephan Schultze Method and device for correcting the positional deviation of a conveyed item
US20050133989A1 (en) * 2003-12-17 2005-06-23 Hiroyuki Sarada Sheet positioning apparatus in a sheet feeding section of a printing press
US7635128B2 (en) * 2003-12-17 2009-12-22 Ryobi Ltd. Sheet positioning apparatus in a sheet feeding section of a printing press
US7117795B2 (en) * 2003-12-20 2006-10-10 Rexroth Indramat Gmbh Method and device for correcting the positional deviation of a conveyed item by adjusting the cylinder's angle rotation relative to the conveyed item

Also Published As

Publication number Publication date
DE2137661B1 (de) 1973-02-22

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