WO1994005572A1 - Procede et systeme de chargement regule d'articles sur un convoyeur de triage - Google Patents

Procede et systeme de chargement regule d'articles sur un convoyeur de triage Download PDF

Info

Publication number
WO1994005572A1
WO1994005572A1 PCT/DK1993/000286 DK9300286W WO9405572A1 WO 1994005572 A1 WO1994005572 A1 WO 1994005572A1 DK 9300286 W DK9300286 W DK 9300286W WO 9405572 A1 WO9405572 A1 WO 9405572A1
Authority
WO
WIPO (PCT)
Prior art keywords
conveyor
objects
feeding
conveyors
controlled
Prior art date
Application number
PCT/DK1993/000286
Other languages
English (en)
Inventor
Viggo Jensen
Original Assignee
Kosan Crisplant A/S
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 Kosan Crisplant A/S filed Critical Kosan Crisplant A/S
Priority to JP6506763A priority Critical patent/JPH08500808A/ja
Priority to AU49451/93A priority patent/AU4945193A/en
Priority to EP93919040A priority patent/EP0656865A1/fr
Publication of WO1994005572A1 publication Critical patent/WO1994005572A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
    • B65G47/30—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a series of conveyors
    • B65G47/31—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles during transit by a series of conveyors by varying the relative speeds of the conveyors forming the series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged

Definitions

  • the present invention relates to a method for feed ⁇ ing transportation objects onto a conveyor of such a type that advances objects positioned in well-controll ⁇ ed, mutually separated positions, in particular a con ⁇ veyor sorter of the type comprising a movable row of carrier platforms or trays for single objects to be selectively discharged at different receiving stations alongside the conveyor.
  • a con ⁇ veyor sorter of the type comprising a movable row of carrier platforms or trays for single objects to be selectively discharged at different receiving stations alongside the conveyor.
  • the sorter conveyor is moved at quite great veloci ⁇ ty to achieve ample capacity, and therefore it constitu ⁇ tes a special problem to deposit the objects at exact positions on the conveyor as the objects are apt to skid uncontrollably on the conveyor if they are merely inser ⁇ ted sideways onto the conveyor with enough speed to be deposited on a vacant space thereon.
  • special "inclined feeders" have been developed enabling the objects to be fed sideways concurrent with being advanced so fast on the obliquely debouching feeder conveyor that their velocity component in the longitudinal direction of the sorter conveyor is commen ⁇ surate with the velocity of the sorter.
  • An object or a package e.g. to be delivered at a given positon on the conveyor, must be accelerated from a standstill point of reference up to the relatively high rate of delivery, which is bound to take some time. It is crucial to have full control of the position of the package on the feeding conveyor to ensure that the loading is going to take place exactly in the desired space and, as a case in point, the feeding operation will fail if the feeding belt is started up so fast that the package will slip on this belt. Thus, the feeding of the package must be initiated reasonably well ahead of the actual discharge onto the conveyor.
  • the feeding belt start command must be executed well in advance before the actual loading onto the conveyor takes place, and the feeding belt will then be occupied up until the point when the loading has been made, and the feeding belt is subsequently has again been stopped.
  • the invention seen in relation to the prior art may be likened to the entry of cars on a motorway. If the cars are to merge into the traffic flow, from a standstill position to find an opening there, it is essential to contemplate well in advance where this opening*will appear so that the start of the merge operation, at a given acceleration, may be ini ⁇ tiated in time. If, on the other hand, a flowing inter ⁇ weaving is chosen, where the accessing is performed with varied or variable speed, then there is a much better chance of merging successfully into the opening in the car line, even though the opening may not be spotted or made available till rather late in the operation.
  • the essential part is for the entering party to have picked up sufficient speed to avoid spending extra time on acceleration from immobility. It is also essential that, along the way, the entering party may drive faster, temporarily exeeding the motorway traffic speed, hence reaching the opening.
  • a controlled variable velocity of the feeding conveyor is used, in that the packages may thusly be accelerated in advance to a medium velocity from which they may relatively fast be decelerated or accelerated further, depending on a de ⁇ tected requirement.
  • packages may in many instances be deposited in vacant spaces so far advanced that they could not have been reached using the usual feeding control, and precisely herein the sorter capaci ⁇ ty can be increased quite considerably.
  • the feeding conveyor may be composed by a number of series-connected, individually control ⁇ lable conveyors, in that it will hereby be possible to guide and advance more packages simultaneously, each of which may be accelerated or decelerated as required, with a view to being deposited on successive vacant trays on the sorter conveyor.
  • a given package could be accelerated on a specific belt section while another package could be decelerated on a different belt section.
  • the feeding conveyor may thus advance several packages simultaneously, and by doing so a noticeable increase of the feeding capacity is achievable.
  • Fig. 1 is a schematic top view of a system accord ⁇ ing to the invention.
  • Fig. 2 is a diagram of various velocity modes.
  • a sorter conveyor 2 comprises an endless row of laterally tiltable transportation trays 4 passing one or more feeding stations 6 of the oblique feeder belt type.
  • the conveyor 2 extends further along a deli ⁇ very area where the transportation objects, in the fol ⁇ lowing named packages, which are loaded into the respec ⁇ tive trays 4, are discharged selectively at relevant receiving stations by tipping the trays sideways.
  • a primary oblique feeder 6 may be of an elementary controlled kind on which packages 8 are advanced from a point of receipt and encoding area 10 for sideways deli ⁇ very into the passing, pre-emptied trays 4.
  • the feeding is performed at such velocity and timed such that the packages are deposited in respective single trays with a velocity component in the direction of advancement of the conveyor 2 corresponding to the the velocity of advancement of this conveyor, such that the packages are deposited in well-defined positions on trays whose iden ⁇ tity is controlled by an associated control computer.
  • packages are advanced successively to a starting position on an acceleration belt 14 which is started depending upon the package being in place and a tray appearing on conveyor 2, e.g. tray 4A, which is vacant and able to arrive at the feeder 8 just when the latter delivers the started pack ⁇ age.
  • a preceding vacant tray 4B cannot be used because the belt 14, as it is, starts up with the greatest possible acceleration for safety position ⁇ ing of the package on the belt.
  • the package enters the belt 14 from a preceding belt 16 at a certain speed, and according to the invention this is exploited such that the package on the belt 14 is not slowed down if a vacant tray appears immediately following tray 4A, which the package may still reach when a 'flying start 7 like this is used.
  • the package may even be on time to be deposited even closer, on tray 4C, but otherwise the acceleration need only be controlled such as to let the package arrive at the exact moment when the following tray, 4B, passes the station.
  • the drawn positioning line X in Fig. 1 may repre ⁇ sent the last reachable tray position for a moved vacant tray if the tray in station 12 is to receive a package deposited in the standard way; halted in the stand ⁇ by/start position on the belt 14. In this case, the position x is shown, placed in front of the feeder 6, but here the computer will already be informed whether the tray will be filled in this station.
  • Fig. 2 shows the velocity V of the belt 14 cor ⁇ related to the longitudinal position L of the package on this belt.
  • the package is delivered on the belt with a velocity VI, and if no vacant tray is available the belt is slowed to a stop along the depicted curve portion a.
  • the belt 14 is started at maximum acceleration, curve b, whereby the package will manage, at velocity V2, to be transferred to the tray just when the latter passes the station.
  • the belt 14 may be started or kept from stopping, such that the package is received at the velocity VI and is then forwarded without halt ⁇ ing, but with a controlled acceleration depending on how far the empty tray is from the station. If, at this point, the tray is in the shown position Y on the con ⁇ veyor, a correct delivery is achievable provided the package is slowed down a little, cf. curve c in Fig. 2, and subsequently accelerated to the correct feeding velocity V2. The closer the empty tray is to the station when the package is deposited on the belt 14, the more the belt needs to be accelerated for the package to reach the tray in time, cf.
  • Position Z on the conveyor 2 corresponds to the last attainable tray position if the package is to arrive using maximum ac ⁇ celeration, cf. curve e. It is true that towards the final stage of this operation, a steady slowing of the belt must be performed to ensure a reduction of the velocity of the package to the feeding velocity V2, without slipping, but it may be noted that the level of velocity can be considerably higher than at the ordinary and conventional feeding, cf. curve b.
  • the system may also be used in installations where the length of the delivered packages is measured in the feeding stations, such that a single tray 4 or a couple of these trays are allocated for the packages as requir ⁇ ed.
  • this belt may be sectioned into successive individually controlled belt lengths, for example four lengths 14a)-14d).
  • Each of these conveyors are of relatively short length in consequence of which they will have correspondingly little intertia, i.e. they can rapidly be speeded up or down.
  • it will be possible to guide and advance a multitude of packages 8 simultaneously on the entire conveyor 14 in such a differentiated way that each of the packages are controlled dynamically for correct delivery on the respective trays 4.
  • This option determines the said increase of the feeding capacity.
  • the packages 8 may be delivered irregularly from the conveyor 16 and may yet in many instances suc ⁇ ceed in being deposited regularly onto the trays 4 rather than being temporarily stopped.
  • the said longitudinal sectioning of the feeder generally conditions an increase of capacity, even if the individual sections are arranged, in a standardised way, so as to accelerate the objects to an initial ve ⁇ locity for the ensuing section. If the objects are de ⁇ livered in a regular or synchronized manner on the feeder 14, several objects under acceleration, on the same feeding section, can thusly be handled at mutually varying rates of velocity, i.e. the objects may follow one another at relatively short interspacings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Control Of Conveyors (AREA)

Abstract

On utilise un convoyeur d'alimentation (6, 14), sur lequel les articles sont amenés successivement à une plus grande vitesse jusqu'à la vitesse de chargement requise, pour effectuer l'alimentation oblique d'articles (8) sur des zones ou des bacs (4) vides d'un convoyeur de triage (2). Ce transport est effectué à partir d'une position immobile, lorsque la zone vide (4A, B, C) est située à une certaine distance du point d'alimentation, mais le temps d'alimentation respectif rend généralement difficile une alimentation correcte dans des bacs qui se succèdent immédiatement, en particulier si la progression des articles vers le convoyeur d'alimentaion n'est pas parfaitement synchronisée. L'invention présente une amélioration par rapport à deux aspects, notamment par une séparation longitudinale du convoyeur d'alimentation en sections individuellement comandées (14a-d), de sorte qu'un article (8) peut être chargé à grande vitesse, tandis que d'autres articles peuvent être soumis à une accélération inférieure sur le même convoyeur, et d'autre part, par l'utilisation d'accélérations régulées en fonction des besoins, ce qui peut entraîner des vitesses intermédiaires supérieures à la vitesse d'alimentation. Un article retardé peut ainsi 'rattraper' une zone vide (4) qui ne pourrait pas être atteinte si une accélération standard était utilisée.
PCT/DK1993/000286 1992-09-04 1993-09-03 Procede et systeme de chargement regule d'articles sur un convoyeur de triage WO1994005572A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6506763A JPH08500808A (ja) 1992-09-04 1993-09-03 選別コンベヤ上に物品を制御して積込む方法および装置
AU49451/93A AU4945193A (en) 1992-09-04 1993-09-03 A method and a system for controlled loading of articles onto a sorting conveyor
EP93919040A EP0656865A1 (fr) 1992-09-04 1993-09-03 Procede et systeme de chargement regule d'articles sur un convoyeur de triage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK109792A DK109792D0 (da) 1992-09-04 1992-09-04 Fremgangsmaade og anlaeg til styret indlaesning af genstande paa en sorteringstransportoer
DK1097/92 1992-09-04

Publications (1)

Publication Number Publication Date
WO1994005572A1 true WO1994005572A1 (fr) 1994-03-17

Family

ID=8100955

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1993/000286 WO1994005572A1 (fr) 1992-09-04 1993-09-03 Procede et systeme de chargement regule d'articles sur un convoyeur de triage

Country Status (5)

Country Link
EP (1) EP0656865A1 (fr)
JP (1) JPH08500808A (fr)
AU (1) AU4945193A (fr)
DK (1) DK109792D0 (fr)
WO (1) WO1994005572A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067159A1 (fr) * 1998-06-23 1999-12-29 Crisplant A/S Systeme de convoyeurs
WO2001026827A2 (fr) * 1999-10-12 2001-04-19 Siemens Aktiengesellschaft Systeme d'admission a vitesse elevee
DE102021131467A1 (de) 2021-11-30 2023-06-01 Böwe Systec Gmbh Vorrichtung zum Sortieren von Poststücken und Verfahren zum Zuführen eines Poststücks zu einer Sortiervorrichtung durch eine Zufuhrvorrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101644077B1 (ko) * 2014-12-22 2016-07-29 부경대학교 산학협력단 물품 자동 분류시스템의 인덕션-캐리어 실시간 동기제어방법
CN110980174A (zh) * 2019-11-27 2020-04-10 常州工学院 通过上包参数确定智能交叉带分拣机工作效率的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747781A (en) * 1972-04-27 1973-07-24 Rapistan Inc Induction apparatus
US4429781A (en) * 1979-03-09 1984-02-07 Kosan Crisplant A/S Method and apparatus for supplying individual items to a conveyor
US4915209A (en) * 1988-05-23 1990-04-10 Francesco Canziani Method for controlling the exact positioning of the items to be sorted in an automatic sorting plant
US5038911A (en) * 1989-02-16 1991-08-13 Rapistan Corporation Controlled spacing induction from plural lines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747781A (en) * 1972-04-27 1973-07-24 Rapistan Inc Induction apparatus
US4429781A (en) * 1979-03-09 1984-02-07 Kosan Crisplant A/S Method and apparatus for supplying individual items to a conveyor
US4915209A (en) * 1988-05-23 1990-04-10 Francesco Canziani Method for controlling the exact positioning of the items to be sorted in an automatic sorting plant
US5038911A (en) * 1989-02-16 1991-08-13 Rapistan Corporation Controlled spacing induction from plural lines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067159A1 (fr) * 1998-06-23 1999-12-29 Crisplant A/S Systeme de convoyeurs
WO2001026827A2 (fr) * 1999-10-12 2001-04-19 Siemens Aktiengesellschaft Systeme d'admission a vitesse elevee
WO2001026827A3 (fr) * 1999-10-12 2002-02-07 Atecs Mannesmann Ag Systeme d'admission a vitesse elevee
US6513641B1 (en) 1999-10-12 2003-02-04 Rapistan Systems Advertising Corp. High rate induction system
US6715598B2 (en) 1999-10-12 2004-04-06 Rapistan Systems Advertising Corp. High rate induction system
AU775766B2 (en) * 1999-10-12 2004-08-12 Dematic Corp. High rate induction system
US6918484B2 (en) 1999-10-12 2005-07-19 Rapistan Systems Advertising Corp. High rate induction system
US7121398B2 (en) 1999-10-12 2006-10-17 Dematic Corp. High rate induction system
US7562760B2 (en) 1999-10-12 2009-07-21 Dematic Corp. High rate induction system
DE102021131467A1 (de) 2021-11-30 2023-06-01 Böwe Systec Gmbh Vorrichtung zum Sortieren von Poststücken und Verfahren zum Zuführen eines Poststücks zu einer Sortiervorrichtung durch eine Zufuhrvorrichtung

Also Published As

Publication number Publication date
EP0656865A1 (fr) 1995-06-14
JPH08500808A (ja) 1996-01-30
DK109792D0 (da) 1992-09-04
AU4945193A (en) 1994-03-29

Similar Documents

Publication Publication Date Title
US5860504A (en) Transfer buffer and inserter and method
US5147023A (en) Method and apparatus for converting a multi-row container into, a single row stream
US7128197B2 (en) High volume conveyor sortation system
JP3834509B2 (ja) 可変速度制御を有するコンベヤ
JPH09290912A (ja) 物品を単一縦列に整える搬送機構
US5007521A (en) Method for merging goods and apparatus therefor
US6129199A (en) Method and device for channeling parceled goods
US5971699A (en) Case loading system
US3835985A (en) Vacuum assist can unscrambler
JP2003531789A (ja) コンベアシステムと物品の分離整列方法
MX2009001845A (es) Metodo para regular un flujo de productos y disposicion para implementacion de dicho metodo.
US20180244488A1 (en) Feeding device of an intra-logistics system
US6690996B2 (en) Method and device for the sequential supply of articles to be processed
EP0871379B1 (fr) Systeme transporteur pour articles en forme de tige
EP0656865A1 (fr) Procede et systeme de chargement regule d'articles sur un convoyeur de triage
US20230136946A1 (en) Store outlet
GB2110727A (en) Aligning and individually delivering spinning cops
JPS62285817A (ja) 物品区分け装置
US7055816B2 (en) Method of processing sheet-like products, and apparatus for implementing the method
US5586638A (en) Discharge apparatus for article handling system
US3506106A (en) Bobbin storage and delivery installation
US4867298A (en) Conveyor system for planar panel
US3651940A (en) Sorting conveyor arrangements
EP0141871B1 (fr) Convoyeur pour transporter une succession d'objets
JPS60112521A (ja) 調速式移載装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1993919040

Country of ref document: EP

ENP Entry into the national phase

Ref country code: US

Ref document number: 1995 392948

Date of ref document: 19950428

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1993919040

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1993919040

Country of ref document: EP