EP0844203A2 - Dispositif pour enlever des feuilles d'une pile et pour transporter les feuilles loin de la pile - Google Patents

Dispositif pour enlever des feuilles d'une pile et pour transporter les feuilles loin de la pile Download PDF

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Publication number
EP0844203A2
EP0844203A2 EP97117801A EP97117801A EP0844203A2 EP 0844203 A2 EP0844203 A2 EP 0844203A2 EP 97117801 A EP97117801 A EP 97117801A EP 97117801 A EP97117801 A EP 97117801A EP 0844203 A2 EP0844203 A2 EP 0844203A2
Authority
EP
European Patent Office
Prior art keywords
suction wheel
toothed belt
vacuum
openings
toothed
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
EP97117801A
Other languages
German (de)
English (en)
Other versions
EP0844203B1 (fr
EP0844203A3 (fr
Inventor
Roland Allgayer
George-Dietrich Dannemann
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 EP0844203A2 publication Critical patent/EP0844203A2/fr
Publication of EP0844203A3 publication Critical patent/EP0844203A3/fr
Application granted granted Critical
Publication of EP0844203B1 publication Critical patent/EP0844203B1/fr
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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile

Definitions

  • the invention relates to a device for removing sheets from a stack and to transport the sheets away from the stack with a toothed belt that meshes endlessly by at least a deflection wheel and a suction wheel is guided and in the same Has spaced openings, with a variety of connecting lines formed in the suction wheel, one of which Mouths on an end face of the suction wheel on a Suction wheel are concentric circle and their other mouths on the peripheral surface of the suction wheel at angular intervals for one Alignment with the openings in the toothed belt are provided, and with a vacuum block that can be connected to a vacuum shaft, which has a vacuum channel, which the one end face of the suction wheel is assigned so that it with the rotating suction wheel comes in vacuum contact with the connecting cable.
  • the connecting line in the suction wheel has a radial one Section, making contact with the vacuum chamber in the vacuum block and two radial sections arranged side by side, which open out on the circumference and corresponding openings in the timing belt for alignment are assigned to them.
  • the radial position of the vacuum block is adjustable.
  • EP-0 155 475 B1 describes a device for removing Sheets from a stack and to transport the sheets away from Stack with a toothed belt that runs endlessly over conveyor rollers known that between two adjacent teeth each at least has a breakthrough.
  • a guide block is defined that has a guide surface has a groove whose depth to the bottom of the groove essentially the thickness of the timing belt and its width essentially corresponds to its width, so that between neighboring Teeth and the groove side wall chambers are limited.
  • the Guide block is for connection to a vacuum source with a suction opening, to which one is in the sheet transport direction extending, assigned to the openings Recess is connected.
  • the toothed belt used in such a device has a low coefficient of friction compared to paper and therefore requires a relatively strong vacuum.
  • the timing belts have a balanced one Relationship between the grooves and the in between lying teeth and a relatively large groove depth. This groove geometry in connection with the powerful vacuum can Markings on the sucked and transported sheet to lead.
  • the toothed belts run with their backs over disc-like ones Drive and deflection wheels and are therefore difficult to keep on their course. Such an unstable timing belt run leads to strong inevitable lateral starting Wear of the timing belt.
  • DE 87 06 576 U1 is also a device for acceptance of sheets from a stack and to transport the sheets from the stack using one constructed as described above Timing belt known, in which a deflection wheel on the arc side with large diameter in the form of two parallel, in Distance arranged disks is provided between which the guide block extends with the vacuum line.
  • This device can also be used for short sheets of one Flat stack, the rear edge of which interacts with a suction lifter, or remove from a steep inclined stack and transport it away.
  • the object of the invention is now to to design the device of the type described in the introduction, that with no risk of marking the bow of wear on the toothed belt is largely reduced.
  • This task is based on the device of the beginning mentioned type in that for the tooth engagement between Toothed belt and suction wheel on this circumference two Toothed rings are provided, each of which is different from one Front extends to a central web, which is a peripheral Guideway with the other mouths of the connecting lines that the teeth of the timing belt only laterally in the area of the toothed rings of the suction wheel in the form of two toothed rings are provided and one formed between them Guide surface with the guideway of the suction wheel in Contact comes, with the breakthroughs and the other mouths the connecting lines are aligned so that the openings in grooves flow out according to the tooth pitch in one layer a high-friction material are formed on the side of the toothed belt is arranged, that of the teeth Side is opposite and that the suction wheel in the direction of the toothed belt a management block is immediately subordinate, which is a guideway for contact with the guiding surface of the timing belt.
  • the Toothed belt guided over one-piece drive and deflection wheels become, i.e. like every toothed belt, it will be conventional with Flanged discs, which greatly reduces wear, while its frictional force is relatively large.
  • the geometry of the chambers independent of the tooth geometry to get voted.
  • Slightly lifting the sheet removed from the stack can be achieved in the device according to the invention by that the guide wheel and the guide block on a plate are arranged, which are arranged pivotable about the suction wheel axis is, and expediently from the horizontal in the direction of rotation of the suction wheel.
  • the device shown in the drawing for the removal of Sheet 21 from a stack 22 and for transporting sheets 21 away from the stack 22 has a toothed belt 1 that is endless at least a deflection wheel 8 and a suction wheel 7 is guided.
  • the toothed belt 1 has one on one side its longitudinal direction extending guide surface 3 to which a toothed ring 2 adjoins each side.
  • the teeth of the two Toothed rings 2 are aligned in pairs at equal intervals, i.e. with a predetermined tooth pitch.
  • a polyurethane layer 4 which corresponds to the Tooth pitch is provided with grooves 5.
  • Each of the grooves is 5 connected to the guide surface 3 via an opening 6.
  • the suction wheel 7 has a central web 13 on its circumference each has a tooth ring 9 adjacent to each other End face of the suction wheel 7 extends, the tooth pitch for meshing with the teeth of the toothed rings 2 of the toothed belt 1 is designed.
  • the deflection wheel 8 is included Teeth on its circumferential surface that match those of Comb the toothed rings 2 of the toothed belt 1, which results in straight guidance of the toothed belt 1 is guaranteed, either from the deflection wheel 8 or driven by the suction wheel 7, which on a machine frame not shown are stored.
  • connection lines 14 Extend from one end face 15 of suction wheel 7 themselves connecting lines 14, the mouths of which on a Suction wheel 7 are concentric circle.
  • the connecting lines 14 each consist of an axial blind bore and one radial blind bore that merge into one another, the radial blind hole in the circumferential surface of the central web 13 ends where there is an opening 6 of the toothed belt 1 located.
  • the central web 13 of the suction wheel 7 has a circumferential side Guideway 10 on which the guide surface 3 of the Timing belt 1 rests when the teeth of the toothed rings 9 of the Suction wheel 7 with the teeth of the toothed rings 2 of the toothed belt 1 comb.
  • a vacuum block 16 arranged has a vacuum channel 17, which with an arrow marked vacuum source 12 can be connected in a clock-controlled manner.
  • the connecting lines 14 come into contact with one another the vacuum channel 17 of the vacuum block 16, whereby the top sheet 21 of the stack 22 starts to the timing belt 1 and is transported away from it.
  • the vacuum block 16 is in and against the direction of rotation Suction wheel 7 pivotable, which is indicated by a double arrow 19 is illustrated. By swiveling the Vacuum blocks 16 can be the suction point 24 for each position or adjust the top sheet 21 of the stack 22.
  • the suction wheel 7 is immediate a guide block 11 with a guide surface 23 is arranged downstream.
  • the guide block 11 is as close to the Suction wheel 7 arranged so that the conditional on the vacuum the suction force acting on the bow 21 between the suction point 24 from Fig. 1 to the guide surface 23 of the guide block only reduced so far that the removal of the sheet 21 along the Guide block 11 remains guaranteed, the guide surface 23 closes the opening (s) 6 and thus the residual vacuum maintained in the grooves 5.
  • This residual vacuum is about 1/6 of the vacuum at the suction point 24, so that a lateral Aligning the sheet 21 on a ruler or the like by sliding on the guide surface 23 of the guide block 11 is possible without the necessary for transportation Adhesion is lost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP19970117801 1996-11-25 1997-10-14 Dispositif pour enlever des feuilles d'une pile et pour transporter les feuilles loin de la pile Expired - Lifetime EP0844203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19648742 1996-11-25
DE1996148742 DE19648742C2 (de) 1996-11-25 1996-11-25 Vorrichtung zur Abnahme von Bogen von einem Stapel und zum Transport der Bogen weg vom Stapel

Publications (3)

Publication Number Publication Date
EP0844203A2 true EP0844203A2 (fr) 1998-05-27
EP0844203A3 EP0844203A3 (fr) 1998-12-23
EP0844203B1 EP0844203B1 (fr) 2000-08-02

Family

ID=7812686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970117801 Expired - Lifetime EP0844203B1 (fr) 1996-11-25 1997-10-14 Dispositif pour enlever des feuilles d'une pile et pour transporter les feuilles loin de la pile

Country Status (2)

Country Link
EP (1) EP0844203B1 (fr)
DE (1) DE19648742C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8905662B2 (en) 2011-08-16 2014-12-09 Xerox Corporation Method for acquiring and transporting multiple-item sets using a vacuum system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012016831A1 (de) 2011-09-22 2013-03-28 Heidelberger Druckmaschinen Ag Bogenanleger und Falzmaschine mit einem solchen Bogenanleger
DE102011120475A1 (de) 2011-12-08 2013-06-13 Heidelberger Druckmaschinen Aktiengesellschaft Bogenanleger mit zwei Saugrädern
DE102011120476A1 (de) 2011-12-08 2013-06-13 Heidelberger Druckmaschinen Aktiengesellschaft Unrundes Saugrad
CN106976748A (zh) * 2017-05-24 2017-07-25 北塘区军之印纸品加工厂 一种纸品加工送纸装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852255A (en) * 1953-05-22 1958-09-16 E G Staude Mfg Company Inc Timed bottom feeder
JPS5440825B2 (fr) * 1974-05-04 1979-12-05
DE3410026C1 (de) * 1984-03-19 1990-01-04 Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler Vorrichtung zur Abnahme von Bogen von einem Stapel und zum Transport der Bogen weg vom Stapel
SE449856B (sv) * 1985-12-20 1987-05-25 Svecia Antiqua Sa Anordning for att serskilja och vidaremata enskilda ark fran en stapel av ark
DE8706576U1 (de) * 1987-05-07 1988-01-21 Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler Vorrichtung zur Abnahme von Bogen von einem Stapel und zum Transport des Bogens weg vom Stapel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8905662B2 (en) 2011-08-16 2014-12-09 Xerox Corporation Method for acquiring and transporting multiple-item sets using a vacuum system

Also Published As

Publication number Publication date
DE19648742C2 (de) 1999-06-24
EP0844203B1 (fr) 2000-08-02
EP0844203A3 (fr) 1998-12-23
DE19648742A1 (de) 1998-05-28

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