EP0418456B1 - Vorrichtung zum Führen von bewegten Bogen sowie deren Verwendung - Google Patents

Vorrichtung zum Führen von bewegten Bogen sowie deren Verwendung Download PDF

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Publication number
EP0418456B1
EP0418456B1 EP90104711A EP90104711A EP0418456B1 EP 0418456 B1 EP0418456 B1 EP 0418456B1 EP 90104711 A EP90104711 A EP 90104711A EP 90104711 A EP90104711 A EP 90104711A EP 0418456 B1 EP0418456 B1 EP 0418456B1
Authority
EP
European Patent Office
Prior art keywords
balls
sheets
rollers
ball
sheet
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
EP90104711A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0418456A1 (de
Inventor
Winfried Manhart
Harald Witt
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.)
Stahl GmbH and Co Maschinenfabrik
Original Assignee
Stahl GmbH and Co Maschinenfabrik
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 Stahl GmbH and Co Maschinenfabrik filed Critical Stahl GmbH and Co Maschinenfabrik
Publication of EP0418456A1 publication Critical patent/EP0418456A1/de
Application granted granted Critical
Publication of EP0418456B1 publication Critical patent/EP0418456B1/de
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
    • B65H9/16—Inclined tape, roller, or like article-forwarding side registers
    • B65H9/166—Roller

Definitions

  • the invention relates to a device for guiding sheets of paper or other sheet-shaped materials which are moved by drivable conveying means, with a ruler and with a ball bar running parallel to the ruler, the individual balls of which rest non-positively on the conveying means and the sheet moving above them.
  • the invention further relates to the use of this device.
  • a device of the type mentioned is known, for example, from the applicant's "STAHL INFORMATION", No. 12/86, page 18 (1986).
  • the individual balls of the ball used are used for holding down and guiding the edges with precision over the conveying means, for example cross rollers or conveyor belts, which come at high speed, for example coming from an upstream folder, a downstream one Folding unit or other machine unit, along the straightening ruler aligned at an angle.
  • the individual balls of the ball bar are located in the middle above the diagonal rollers or conveyor belts in sleeves that are open at the top and bottom and lie on the diagonal rollers or conveyor belts under their own weight.
  • the leading edge of the sheets which are usually, but not necessarily, moved horizontally causes the balls they bump to jump up, the jump height being dependent on the speed and thickness of the sheets required, and the sheet thickness in turn being dependent on the number of sheets and the paper volume.
  • the jump height of the individual balls is limited in the known device by a continuous stop bar which is arranged above the sleeves and at the same time prevents the balls from falling out.
  • the distance of this bar is adjustable, which means that the height of the balls can be limited to a fixed height.
  • This known device has two major disadvantages: in the phase of the balls jumping up, the individual balls briefly lose contact both with the driven conveying means and with the sheets moving over them.
  • the frictional connection caused by the weight of the balls is therefore interrupted briefly but periodically, both between the balls and the conveying means and between the balls and the conveyed sheets.
  • the starting force component of the folded sheet towards the straightening ruler is periodically changed, that is to say greater in the case of a force fit and less without a force fit, as a result of which the conveyed sheets can migrate from the straightening ruler.
  • a conveyor table for feeding or transverse conveying of sheets is known, which is a device for guiding sheets moved by drivable conveying means Paper or other sheet-like materials with a ruler and with a parallel to the ruler ball bar.
  • the individual balls of the ball bar are freely movable in ball cages and bear with their own weight on the conveying means, namely diagonal rollers.
  • the springing up of the balls kicked by the conveyed sheets is limited by springs.
  • the ball bar can be pivoted as a whole about an axis running parallel to the straightedge in order to facilitate access to the straightedge.
  • the invention has for its object to avoid the disadvantages described and to provide a device of the type mentioned, with which it is possible to keep the starting force component of the conveyed sheet towards the ruler as well as the peripheral speed and direction of rotation of the balls as constant as possible and thereby the risk of To reduce migration of the sheets from the ruler.
  • rollers are arranged as rotatable load elements which positively touch the surface of the balls assigned to them.
  • the load elements provided according to the invention are under the action of a spring force ensures that the frictional connection between these load elements and the balls as well as between the balls and the conveying means or sheet located under the balls is never interrupted, even if not the front edges of the sheets conveyed at high speed hit the balls.
  • the impact imparted by the leading edge of the respective ball still causes the ball to deflect in a direction perpendicular to the direction of conveyance of the sheet, but because the load element resting on the ball is under the action of a spring force, the load element can do so without interrupting the frictional connection also dodge.
  • the starting force component of the sheet remains unchanged towards the straightening ruler, so that the conveyed sheets cannot migrate from the straightening ruler and thus enter the subsequent unit at an angle, for example a cross fold folder. False folds and rejects are almost completely avoided. Since the balls are constantly in frictional contact with the load elements resting on them, the peripheral speed of the balls also remains practically constant, and they receive no impulse that could change their direction of rotation.
  • rollers are rotatably mounted on axes which are perpendicular to the straightedge and to the conveying direction of the sheets. This means that the rollers and thus also the non-positively connected balls receive a direction of rotation that corresponds exactly to the conveying direction and runs parallel to the longitudinal axis of the rule.
  • the load elements are fastened to a bar connected to the rule by means of levers and the levers are arranged pivotably in a vertical plane, the levers preferably being pivoted about bolts under the action of torsion springs.
  • the device is preferably used according to the invention for guiding, aligning and holding down folded sheets in folding and printing machines, conveying tables and sheet feeders, the conveying tables being able to be both inclined roller tables and belt tables and the conveying plane of these tables does not necessarily have to run horizontally.
  • Corresponding housings are arranged so that they lie on a curved surface, so that they can also be used, for example, in the area of the deflecting drum of a round pile feeder or can be used wherever sheets are conveyed in a singular form or in the form of a shingled stream and thereby to be led, aligned and / or held down.
  • the embodiment of the device according to the invention shown in the drawing is used for guiding, aligning and holding down folded sheets 1 which are guided at high speed over an inclined roller conveyor table 3.
  • the folded sheets 1 come from a first folding or printing unit 2, arrive on the conveyor table 3, the diagonal rollers of which are driven by a motor, and are fed with the folding in advance to a second folding or printing unit 4.
  • a guideline 7 is used for the angular alignment and guidance of the folded sheets 1.
  • a ball bar 8 with a plurality of balls 13 is fastened to the rule 7, the balls 13 being located in individual sleeves 9 which are open at the top and bottom and thereby permit vertical movement of the balls without impairing their rotatability.
  • the ball bar 8 is arranged so that the individual balls 13 each lie centrally over the diagonal rollers used as conveying means in the present case and are in frictional contact with these motor-driven diagonal rollers. For reasons of clarity, only the foremost three diagonal rollers 10, 11, 12 of the diagonal roller conveyor table 3 are shown in FIGS. 1 and 2.
  • a bar 23 is screwed onto the straightedge 7 by means of cylinder screws 24.
  • Bolts 16 are fastened in the bar 23, about which levers 15 are rotatably mounted, with rollers 14 being rotatably fastened to the levers 15 by means of shoulder screws 20, ball bearings 21 and spacer sleeves 22 (FIG. 2).
  • the rollers 14 are arranged so that each of them is associated with a ball 13 and touches the surface of the ball associated with them non-positively.
  • the frictional connection is effected by spring force.
  • torsion springs 17 are provided on the bolts 16, which are preloaded and held by spring clamping sleeves 18 and cylindrical pins 19.
  • the ball 13 After passing through the folding sheet 1, the ball 13 falls back into its original position under the action of the spring force of the torsion spring 17 without the non-positive connection being interrupted.
  • the start-up force component of the individual folded sheets 1 in the direction of the guideline 7 thus remains constant and is not noticeably influenced by the necessary dodging of the balls 13. In this way, the folded sheets 1 reach the nip of the inlet rollers 5, 6 of the subsequent folding or printing unit 4 at an angle.
  • the ball strips 8 can be arranged centrally above conveyor belts which run parallel to the guide ruler 7, the conveying plane not having to be horizontal, but also being able to rise or the arch being curved Surface can be promoted and the ball bars are then curved accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
EP90104711A 1989-09-21 1990-03-13 Vorrichtung zum Führen von bewegten Bogen sowie deren Verwendung Expired - Lifetime EP0418456B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931522 1989-09-21
DE3931522A DE3931522A1 (de) 1989-09-21 1989-09-21 Vorrichtung zum fuehren von bewegten bogen sowie deren verwendung

Publications (2)

Publication Number Publication Date
EP0418456A1 EP0418456A1 (de) 1991-03-27
EP0418456B1 true EP0418456B1 (de) 1993-12-22

Family

ID=6389888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104711A Expired - Lifetime EP0418456B1 (de) 1989-09-21 1990-03-13 Vorrichtung zum Führen von bewegten Bogen sowie deren Verwendung

Country Status (5)

Country Link
EP (1) EP0418456B1 (ja)
JP (1) JP2834300B2 (ja)
DD (1) DD297620A5 (ja)
DE (2) DE3931522A1 (ja)
PT (1) PT95373B (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131314A1 (de) * 1991-09-20 1993-03-25 Meteor Siegen Apparat Schmeck Faltanlage fuer bogenfoermiges faltgut
DE9304281U1 (de) * 1993-03-22 1993-05-13 Stahl Gmbh & Co Maschinenfabrik, 7140 Ludwigsburg Vorrichtung zum Belasten von Falzbogen
DE102005015095A1 (de) * 2005-04-01 2006-10-05 Heidelberger Druckmaschinen Ag Vorrichtung zum Positionieren einer Hinterkante von Bogen
US7464931B2 (en) 2005-03-31 2008-12-16 Heidelberger Druckmaschinen Ag Apparatus for positioning a trailing edge of sheets
EP2420463A4 (en) 2009-04-17 2013-09-11 Duplo Seiko Corp CROSS TRANSPORT DEVICE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61105343U (ja) * 1984-12-14 1986-07-04
JPS61211249A (ja) * 1985-03-13 1986-09-19 Yoshiyuki Kamata 硬質プラスチックシート材の搬送装置
DE3525040C2 (de) * 1985-07-13 1994-05-11 Bell & Howell Co Einrichtung zur Umlenkung der Förderrichtung von Papierblättern

Also Published As

Publication number Publication date
PT95373A (pt) 1992-06-30
JPH03138245A (ja) 1991-06-12
PT95373B (pt) 1998-06-30
JP2834300B2 (ja) 1998-12-09
EP0418456A1 (de) 1991-03-27
DD297620A5 (de) 1992-01-16
DE59003955D1 (de) 1994-02-03
DE3931522A1 (de) 1991-04-04

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