EP0094523B1 - Dispositif tendeur pour au moins un ruban de pression associé à une poulie de renvoi d'un margeur de feuilles rotary - Google Patents

Dispositif tendeur pour au moins un ruban de pression associé à une poulie de renvoi d'un margeur de feuilles rotary Download PDF

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Publication number
EP0094523B1
EP0094523B1 EP83103931A EP83103931A EP0094523B1 EP 0094523 B1 EP0094523 B1 EP 0094523B1 EP 83103931 A EP83103931 A EP 83103931A EP 83103931 A EP83103931 A EP 83103931A EP 0094523 B1 EP0094523 B1 EP 0094523B1
Authority
EP
European Patent Office
Prior art keywords
tensioning
lever
spring
tensioning device
feeder
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
Application number
EP83103931A
Other languages
German (de)
English (en)
Other versions
EP0094523A1 (fr
Inventor
Emil Klenk
Karl-Fritz Heina
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Publication of EP0094523A1 publication Critical patent/EP0094523A1/fr
Application granted granted Critical
Publication of EP0094523B1 publication Critical patent/EP0094523B1/fr
Expired 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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/023—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between a pair of belts forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip

Definitions

  • the invention relates to a tensioning device for at least one pressure belt assigned to a deflection drum of a round stacking sheet feeder with at least one bearing lever which is fastened to a pivot shaft mounted in the feeder frame and on the free end of which a tensioning roller for the pressure belt is mounted, and with a spring having one end engages the feeder frame and acts on the bearing lever at different distances from its pivot shaft to achieve a different clamping force.
  • the prior art includes a circular stack feeder of this type with a plurality of pressure belts arranged at a distance from one another.
  • Each of these pressure belts is assigned a separate tensioning device, which consists of a lever which is pivotally held at one end on the lifting frame side and at the other end of which the tensioning roller is mounted.
  • the lever has several holes on its longitudinal extension.
  • One end of a prestressing spring engages in one of these bores, the other end of which is fixed on the feed frame side. If the respective pressure band has to be tightened more, the spring is hooked into the hole, which causes the spring to stretch more.
  • the object on which the invention is based is now to design the tensioning device of the type mentioned at the beginning with simple means in such a way that a correct deflection of the scaled sheet stack is ensured without tearing apart.
  • the tensioning device has the advantage that the pressure force of the pressure belts and thus the frictional relationships between the pressure belts and the scaled sheet stack can be changed continuously by the operator during the run. With this setting, the behavior of the shingled sheet stack during deflection can be observed, so that influences due to different friction between the respective papers can be compensated extremely easily. This prevents the shingled sheet stack from being torn apart and ensures that the individual sheets are delivered correctly in the working cycle of a suction roll.
  • a particularly favorable force setting results from the fact that the axis of the spring forms an angle of essentially 90 ° in its central position with the tensioning lever.
  • the spring is a gas pressure spring, since this has an approximately constant force over the spring travel.
  • a particularly favorable stepless adjustment of the holding member by hand is obtained if the holding member has a bore with an internal thread into which a spindle engages, which is essentially parallel to the tensioning lever and which is rotatably but axially fixed on the tensioning lever.
  • the set position of the holding member is fixed by the friction in the thread.
  • the round stack sheet feeder 1 shown in FIG. 1 has a feeder frame 7 in which the individual components are held or stored.
  • the round-stack sheet feeder 1 has a first belt conveyor 2 assigned to a lay-up table with a deflection drum 3 and a second belt conveyor 4, the pressure belts 8 of which are pressed against the deflection drum 3 for deflecting the stack of sheets and which are held taut by a tension roller 5.
  • the second belt conveyor 4 guides the sheets deflected on the deflection drum 3 onto a third belt conveyor 6 assigned to a removal table.
  • the tensioning device has a pivot shaft 11 which is pivotably mounted in the feeder frame 7.
  • bearing lever 10 On the pivot shaft 11 are adjacent to the respective gene walls of the feeder frame 7 bearing lever 10 is fixed, in which shaft journals 9 of the tensioning roller 5 are mounted at their free ends, via which a number of pressure tapes 8, not shown, runs.
  • a tensioning lever 12 On the outside of the one wall of the feeder frame 7, a tensioning lever 12 is seated on the pivot shaft 11 in parallel association with the bearing levers 10 moved and can be fixed in the set position on the clamping lever 12 with the aid of a handwheel 14 actuating a clamping device (not shown).
  • the holding member 13 On the upper side opposite the handle 21, the holding member 13 has a swivel joint 15, to which one end of a spring 17 is connected, the other end of which is articulated on the outside of one wall of the feeder frame 7 in a joint 16.
  • the spring 17 shown in FIG. 2 is a gas pressure spring, the piston rod 18 of which acts on the joint 15.
  • the threaded member moves the holding member 13 in one direction or the other in accordance with the double arrow 19 of FIG. 2.
  • a locking of the respectively set position between the holding member 13 and the clamping lever 12 is not required because the position is maintained due to the friction of the thread engagement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Drives For Endless Conveyors (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Claims (4)

1. Dispositif tendeur pour au moins un ruban de pression (8) associé à une poulie de renvoi (3) d'un margeur de feuille Rotary, comportant au moins un levier d'appui (10), qui est fixé à un arbre pivotant (11) monté dans un châssis de margeur (7) et à l'extrémité libre duquel est monté un galet tendeur (5) pour le ruban de pression (8), et comportant un ressort (17) qui vient en prise par une extrémité avec le châssis de margeur (7) et agit à des distances différentes dudit arbre pivotant (11) pour l'obtention d'une force de tension différente sur le levier d'appui (10), caractérisé par un levier tendeur (12) fixé sur l'arbre pivotant (11) extérieurement au châssis de margeur (7) et par un élément de retenue (13) disposé à coulissement longitudinal sur le levier tendeur (12), l'autre extrêmité du ressort (17) venant en prise avec ledit élément de retenue, lequel peut être fixé dans la position réglée.
2. Dispositif tendeur selon la revendication 1, caractérisé par le fait que l'axe du ressort (17) forme dans sa position moyenne un angle de sensiblement 90° avec le levier tendeur (12).
3. Dispositif tendeur selon la revendication 1 ou 2, caractérisé par le fait que le ressort (17) est un ressort à pression de gaz.
4. Dispositif tendeur selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'élément de retenue (13) présente un alésage (25) pourvu d'un taraudage, dans lequel s'engage une broche (23) sensiblement parallèle au levier tendeur (12) et maintenue rotative sur le levier tendeur (12), mais fixée axialement.
EP83103931A 1982-05-17 1983-04-21 Dispositif tendeur pour au moins un ruban de pression associé à une poulie de renvoi d'un margeur de feuilles rotary Expired EP0094523B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3218566 1982-05-17
DE3218566A DE3218566C2 (de) 1982-05-17 1982-05-17 Spannvorrichtung für wenigstens ein einer Umlenktrommel eines Rundstapelbogenanlegers zugeordnetes Anpreßband

Publications (2)

Publication Number Publication Date
EP0094523A1 EP0094523A1 (fr) 1983-11-23
EP0094523B1 true EP0094523B1 (fr) 1985-08-07

Family

ID=6163857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103931A Expired EP0094523B1 (fr) 1982-05-17 1983-04-21 Dispositif tendeur pour au moins un ruban de pression associé à une poulie de renvoi d'un margeur de feuilles rotary

Country Status (5)

Country Link
US (1) US4508214A (fr)
EP (1) EP0094523B1 (fr)
JP (1) JPS58216813A (fr)
CA (1) CA1198457A (fr)
DE (1) DE3218566C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD267476A1 (de) * 1987-11-30 1989-05-03 Polygraph Leipzig Verstelleinrichtung fuer anpressbaender
AT413692B (de) * 2004-02-11 2006-05-15 Tgw Transportgeraete Gmbh Zugmitteltrieb, insbesondere für eine fördereinrichtung

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1875442A (en) * 1932-09-06 Belt scraper
US832361A (en) * 1905-12-20 1906-10-02 Levi B Blevins Conveyer-belt tightener for harvesters.
GB336737A (en) * 1929-09-04 1930-10-23 Colin Hugh Macmillan Improvements in valve driving mechanism for internal combustion engines
US2833394A (en) * 1953-11-12 1958-05-06 Cordis Nat Dual-belt elevator for poultry feeds
US2920751A (en) * 1956-12-03 1960-01-12 Gerbert Products Company Chain tightener
US3142193A (en) * 1961-11-20 1964-07-28 Int Harvester Co Belt tensioning device
US3214001A (en) * 1962-10-09 1965-10-26 Production Machinery Corp Unscrambler
GB1090851A (en) * 1964-01-14 1967-11-15 John Douglas Dyson Improvements in endless elevating conveyors
US3292772A (en) * 1965-01-26 1966-12-20 Burton Machine Corp John Conveyor structure
GB1082266A (en) * 1965-07-23 1967-09-06 Gen Electric Co Ltd Improvements in or relating to conveyor arrangements
CH544026A (de) * 1972-09-21 1973-11-15 Grapha Holding Ag Vorrichtung zum Umsetzen eines Papierbogenstapels in einen Schuppenstrom
IN142189B (fr) * 1974-04-16 1977-06-11 Ibm
US3982749A (en) * 1975-07-07 1976-09-28 Stobb, Inc. Signature feeder
US4089407A (en) * 1977-01-31 1978-05-16 K-Tron Corporation Constant belt tensioner

Also Published As

Publication number Publication date
CA1198457A (fr) 1985-12-24
JPS58216813A (ja) 1983-12-16
DE3218566A1 (de) 1983-11-17
DE3218566C2 (de) 1984-12-06
EP0094523A1 (fr) 1983-11-23
US4508214A (en) 1985-04-02

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