EP1597178A2 - Procede et appareil de separation d'objets se chevauchant avances sur un transporteur - Google Patents

Procede et appareil de separation d'objets se chevauchant avances sur un transporteur

Info

Publication number
EP1597178A2
EP1597178A2 EP04702887A EP04702887A EP1597178A2 EP 1597178 A2 EP1597178 A2 EP 1597178A2 EP 04702887 A EP04702887 A EP 04702887A EP 04702887 A EP04702887 A EP 04702887A EP 1597178 A2 EP1597178 A2 EP 1597178A2
Authority
EP
European Patent Office
Prior art keywords
conveyer
bending
bending rollers
advanced
speed
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.)
Withdrawn
Application number
EP04702887A
Other languages
German (de)
English (en)
Inventor
Michael Hermansson
Thomas Pettersson
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP1597178A2 publication Critical patent/EP1597178A2/fr
Withdrawn legal-status Critical Current

Links

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
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/12—Forming counted batches in delivery pile or stream of articles by creating gaps in the stream
    • 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
    • B65H5/025—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between belts and rotary means, e.g. rollers, drums, cylinders or balls, 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
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed

Definitions

  • the present invention relates to a method of separating overlapping objects advanced on a conveyer, the conveyer being divided into two individually driven paths, a first and a second, each with a bending roller lying adjacent one another, the bending rollers being interconnected and moveable in the horizontal plane.
  • the present invention also relates to an apparatus for carrying the method into effect.
  • planar objects When paper sheets or similar, planar objects are conveyed on a conveyer, they normally overlap one another to a greater or lesser extent. By conveying planar or flat-laid objects overlapping, the conveyer may be advanced at relatively reasonable speed. This method of conveying also saves space. How much the objects may overlap one another depends on the material from which the objects are manufactured and also the thickness of the objects themselves.
  • Swedish Patent Specification SE 0101914-0 describes an apparatus for the continuous marshalling or grouping of objects such as packaging containers.
  • the apparatus has a conveyer which is divided with mutually adjacent bending rollers which are moveable in the horizontal plane, together with a stop member.
  • the stop member may also move up or down between the bending rollers.
  • the sheet normally consists of a core of paper or paperboard to which are laminated different layers of plastic, and possibly also aluminium foil.
  • the sheets may be unglued, totally planar or alternatively glued to form so-called blanks which are flat- laid.
  • it is occasionally necessary to separate the flow This may, for example, be when the intention is to unite two flows to form a single flow or if the intention is to divide up a flow into two or more. Separation or grouping of a flow of sheets may also be employed when the intention is to pack a given number of sheets in a carton or the like.
  • One object of the present invention is to realise a method of separating overlapping objects on a conveyer where there is no risk of damaging the surface of the objects.
  • a further object of the present invention is that the separation or grouping may be carried out continuously, since most processes presuppose an increasing speed in order to carry out different operational phases.
  • FIG. 1 is a schematic illustration of an apparatus for carrying the method according to the present invention into effect.
  • Fig. 1 shows an apparatus which consists of two driven, endless conveyer belts a first 1 and a second 2.
  • the apparatus is intended for planar or flat-laid objects 3 such as paper sheets or the like.
  • the objects 3 are advanced through the apparatus as shown by means of an arrow 4 in Fig. 1.
  • the objects 3 arrive in an overlapping flow. How large the overlap is depends upon the material of the objects 3 and on their thickness.
  • the two endless conveyer belts 1, 2 have a number of bending rollers. Two of the bending rollers 5, 6 are placed adjacent one another and in close association with the objects 3. Both of these bending rollers 5, 6 are secured on a joint bracket 7. This bracket 7 is further secured on a linear unit or similar device (not shown).
  • the linear unit may be servo-controlled, frequency-controlled or pneumatically controlled.
  • the bracket 7 with the two bending rollers 5, 6 may move reciprocally in the horizontal plane, parallel with the upper side of the conveyer belts 1, 2 as shown in Fig. 1 by means of a double headed arrow 8.
  • Both of the conveyer belts 1, 2 also each display a bending roller 9, 10 which terminates that part of the belts 1, 2 on which the objects 3 rest.
  • the objects 3 are advanced on the first conveyer belt 1 between the bending rollers 9 and 5, whereafter they pass over to the second conveyer belt 2, between the bending rollers 6 and 10.
  • the upper side or part of the first conveyer belt 1 is preferably located on a level which lies above the upper side or part of the second conveyer belt 2.
  • Each conveyer belt 1, 2 moreover possesses a number of additional bending rollers. Two of these 11, 12 are also interconnected to a joint bracket 13. The two bending rollers 11, 12 are also moveable in the horizontal plane. The remaining bending rollers which are disposed along the two conveyer belts 1, 2 are fixed.
  • the two conveyer belts 1, 2 are both driven individually and independently of each other.
  • the driving means may be disposed on the bending rollers 9, 10 or on one of the other bending rollers where the driving operation does not disrupt or come into conflict with the method according to the present invention.
  • the apparatus is further provided with a nip roller 14 which is pressure- or spring-biased or which acts by its own weight.
  • the nip roller 14 is placed in register with the bending roller 5 on the first conveyer belt 1.
  • the nip roller 14 is secured on the same bracket 7 as the bending rollers 5 and 6.
  • the objects 3 enter the apparatus according to the invention from another conveyer belt or direct from a machine (not shown).
  • the objects 3 are advanced on the first conveyer belt 1 and, once they have passed between the bending roller 5 and the nip roller 14, they fall down onto the second conveyer belt 2. Thereafter, the objects 3 depart from the apparatus and possibly continue on another conveyer belt (not shown).
  • the two conveyer belts 1, 2 move at the same speed.
  • the linear unit with the bracket 7 and the two bending rollers 5 and 6 begins to move forwards in the direction of movement of the conveyer belts 1, 2.
  • the bracket 13 with the two bending rollers 11, 12 moves in the opposite direction.
  • the linear unit has the same speed as the two conveyer belts 1, 2.
  • the linear unit accelerates forwards a distance which corresponds to 25-75 % of the length of an object 3.
  • the acceleration distance depends upon the material of the objects 3. If the objects 3 are rigid, a shorter distance is required. The sloppier the material from which the objects 3 are manufactured, the longer will be the requisite distance.
  • the linear unit returns to the original speed, i.e. the same speed as that of the first conveyer belt 1.
  • a jerk occurs which entrains the objects 3 which are not held between the bending roller 5 and the nip roller 14.
  • Those objects 3 which are held by the bending roller 5 and the nip roller 14 will fasten in this position as long as the linear unit moves forwards.
  • the second conveyer belt 2 continues at the increased speed until such time as there is sufficiently great space between two objects 3.
  • This space may vary from a few millimetres to an optional number of metres, depending on what the intention is with the separation.
  • the space may be defined as a distance where there is no overlap. If a space is desired so as to be able to package the objects 3, it may be sufficient to provide a space of a few millimetres. If the intention is to unite objects 3 from two parallel conveyer belts, a space of a few metres may be needed so that the second conveyer belt 2 is emptied of objects 3. How much faster the second conveyer belt 2 must move also depends on how great the space is intended to be created.
  • the second conveyer belt 2 returns to the original speed, i.e. the same speed as the first conveyer belt 1 and the linear unit.
  • the linear unit reverses and reverts to its original position.
  • the bending rollers 5, 6 on the bracket 7 will move backwards in the direction of movement of the conveyer belts 1, 2 at the same time as the bracket 13 with the bending rollers 11, 12 moves forwards.
  • the apparatus is thereafter ready to commence a new cycle of separation according to the method according to the present invention.
  • the present invention realises a method and an apparatus which make it possible to separate or group a flow of overlapping objects advanced on a conveyer path.
  • the separation may take place continuously and in such a manner that there is no risk that the objects be damaged or disrupted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

L'invention concerne un procédé et un appareil de séparation d'objets se chevauchant (3) avancés sur un transporteur. Le transporteur est divisé en des premier (1) et second (2) chemins entraînés séparément. Les chemins (1, 2) possèdent chacun un rouleau plieur (5, 6), lesquels sont adjacents l'un à l'autre, reliés entre eux et mobiles dans le plan horizontal. Lorsque la séparation va avoir lieu, les chemins (1, 2) du transporteur et les rouleaux plieurs (5, 6) sont déplacés vers l'avant à la même vitesse, après quoi lesdits rouleaux (5, 6) et la seconde courroie de transporteur (2) sont accélérés momentanément et les rouleaux plieurs (5, 6) reviennent ensuite à leur vitesse originale. La seconde courroie (2) de transporteur conserve une vitesse supérieure jusqu'à ce que l'espace de séparation requis soit atteint. Finalement, la seconde courroie de transporteur (2) revient à la vitesse originale et les rouleaux plieurs (5, 6) reculent.
EP04702887A 2003-01-16 2004-01-16 Procede et appareil de separation d'objets se chevauchant avances sur un transporteur Withdrawn EP1597178A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0300090A SE524671C2 (sv) 2003-01-16 2003-01-16 Metod och anordning för att separera överlappande föremål framförda på en transportbana
SE0300090 2003-01-16
PCT/SE2004/000059 WO2004063064A2 (fr) 2003-01-16 2004-01-16 Procede et appareil de separation d'objets se chevauchant avances sur un transporteur

Publications (1)

Publication Number Publication Date
EP1597178A2 true EP1597178A2 (fr) 2005-11-23

Family

ID=20290125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04702887A Withdrawn EP1597178A2 (fr) 2003-01-16 2004-01-16 Procede et appareil de separation d'objets se chevauchant avances sur un transporteur

Country Status (6)

Country Link
US (1) US20060214366A1 (fr)
EP (1) EP1597178A2 (fr)
JP (1) JP2006515552A (fr)
NO (1) NO20053833L (fr)
SE (1) SE524671C2 (fr)
WO (1) WO2004063064A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8833758B2 (en) * 2011-09-09 2014-09-16 Vits America, Inc. Stacker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724840A (en) * 1971-04-29 1973-04-03 Windmoeller & Hoelscher Stacking apparatus for sheet articles fed in overlapping formation on a continuously moving conveyor towards a stacking station
DE2852603C3 (de) * 1978-12-05 1981-07-23 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Vorrichtung zum Erzeugen einer vorbestimmten Lücke in einem sich schuppenartig überlappenden Bogenstrom
US4546871A (en) * 1982-09-20 1985-10-15 Harris Corporation Gap maker
DE3941184A1 (de) * 1989-12-13 1991-06-20 Windmoeller & Hoelscher Vorrichtung zur trennung eines kontinuierlich gefoerderten stroms von geschuppt uebereinander liegenden flachen werkstuecken
US5446871A (en) * 1993-03-23 1995-08-29 International Business Machines Corporation Method and arrangement for multi-system remote data duplexing and recovery
US6022017A (en) * 1998-06-02 2000-02-08 Marquip, Inc. Method for handling a small gap order change in a corrugator
SE519011C2 (sv) * 2001-05-31 2002-12-23 Tetra Laval Holdings & Finance Anordning för kontinuerlig gruppering av föremål på en transportbana

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004063064A2 *

Also Published As

Publication number Publication date
SE0300090L (sv) 2004-07-17
NO20053833L (no) 2005-10-13
NO20053833D0 (no) 2005-08-15
SE0300090D0 (sv) 2003-01-16
WO2004063064A3 (fr) 2004-11-11
SE524671C2 (sv) 2004-09-14
US20060214366A1 (en) 2006-09-28
WO2004063064A2 (fr) 2004-07-29
JP2006515552A (ja) 2006-06-01

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