EP1045733B1 - Procédé de commande d'un dispositif servant au retrait d'envois plats d'une pile - Google Patents
Procédé de commande d'un dispositif servant au retrait d'envois plats d'une pile Download PDFInfo
- Publication number
- EP1045733B1 EP1045733B1 EP99930887A EP99930887A EP1045733B1 EP 1045733 B1 EP1045733 B1 EP 1045733B1 EP 99930887 A EP99930887 A EP 99930887A EP 99930887 A EP99930887 A EP 99930887A EP 1045733 B1 EP1045733 B1 EP 1045733B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- item
- items
- 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.)
- Expired - Lifetime
Links
Images
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
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C1/00—Measures preceding sorting according to destination
- B07C1/02—Forming articles into a stream; Arranging articles in a stream, e.g. spacing, orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
- B65H2301/4452—Regulating space between separated articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/22—Distance
-
- 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 invention relates to a method and an apparatus for Control of the deduction according to the generic term of the independent Claims.
- the trigger element is driven to deduct a shipment such that the distance between the deductible shipment and an already deducted shipment is determined and the respective distance measurement result by one Default value, that of the acceleration path of the to be subtracted Subject is corrected, and being the deduction is triggered when the size of the distance measurement result corrected in this way corresponds to a distance setpoint.
- a trigger device is disclosed in US-A-4,541,624 described, with the shipments on the lower edge deducted upwards, i.e. the different Consignment lengths must be taken into account.
- Deduction and Correction tools are constantly driven, but with different fixed speeds, their respective Duration is determined. No determination is made here the actual distance of the consignment to be deducted from the deducted Consignment made. This distance is only calculated after the consignment to be deducted has already been deducted, i.e. Defined shipment intervals cannot be saved.
- the invention specified in the independent claims the problem is therefore based on a method and a Device for withdrawing flat items from a stack to create those lined up without a measuring section Sensors for the detection of the consignments control the deduction that an optimal minimum gap for further processing of the mailings between the shipments.
- the distance between the withdrawn consignments must no longer be constant to be deducted from the shipment to be measured at the time to accelerate the shipment to be deducted. Rather, it determines the speed at which the consignment to be deducted from when the first sensor is reached must be transported to the second sensor to get the desired one To achieve the target gap, i.e. a sensor line is not more necessary.
- FIG. 1 shows a preferred embodiment of an inventive Contraption. It is fixed, but free rotatably provided a shaft 20 on which a roller 21 is attached is.
- the shaft 20 also serves for pivotable mounting a rocker 22, the axis 23 of another role 24 wears.
- Around the roller 21 and the take-off roller 24 is as a separating member guided at least one take-off belt 25, the Outer surface has a high coefficient of friction.
- the rocker 22 is by a schematically indicated spring 26 supported so that their respective position from the pressing force depends on the batch of items, the first of which Shipment 1 'is shown when it is deducted.
- the free end of the Swing arm 22 acts on a microswitch, not shown on. If the pressure of the stack is too low, then includes a normally closed contact of the microswitch, thereby gear motor, not shown, is switched on. This drives a retaining wall towards the end of the stack the take-off roller 24 until after reaching the intended Pressure force corresponding position of the swing arm Switches off the normally closed contact again.
- the shaft 20 is driven by a servo motor, not shown controllable driven in the direction of the arrow.
- the in the conveying direction pointing edges, i.e. the leading edges of the in the stack consignments are more or less close to each other a stop wall 40, the one to the trigger tape 25 Passage of the mailings enabling gap, that is, the stack exit leaves free.
- Conveyor rollers 43 and 44 are arranged through which the shipments will be forcibly promoted once they are in their Detection area are reached.
- These conveyor rollers serve here as deflection rollers of conveyor belts 48 and 49 in the conveying direction are guided around further deflection rollers 50 and 51.
- the driven conveyor roller 43 is fixed, the conveyor roller 44 is compliant in a known manner, e.g. mounted on a swiveling lever, but what in the Drawing is not shown for the sake of simplicity.
- This light barrier 71/71 ' is located so far behind the stop wall 40 that the shipments reached a medium take-off speed at this point to have. This average pull-off speed is with the help statistical data set so that the necessary speed changes to carry out occurring Changes in gaps are as small as possible.
- the distance between the light barriers is chosen so large that at specified maximum speed change the largest necessary gap changes can be realized.
- These light barrier signals are one of the microprocessor Control circuit 60 evaluated. From the light / dark signals the light barriers are the respective positions of the shipments 1 'and 1 "determined.
- FIG. 2 shows a simplified representation in which a number of mail items is arranged in a stack 100.
- the trigger motor is switched on and the first program started. Reaches the front edge of the second light barrier 73/73 ', the trigger motor is stopped immediately, the shipment is further subtracted from the conveyor belts 48 and 49. The trigger motor is only switched on again when the following Condition is fulfilled: the first light barrier 71/71 'is bright.
- the trigger motor is started again to the next one Speed up shipment.
- the speed v can be determined with which the Consignment until the second light barrier 73/73 'is reached must be transported further to achieve this exactly the distance between the target gap and the previously deducted item to have. So there is no interim stopping of the Broadcast.
Landscapes
- Controlling Sheets Or Webs (AREA)
- Sorting Of Articles (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Pile Receivers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Claims (8)
- Procédé de commande d'un organe de retrait d'envois plats à vitesse de retrait asservissable, qui apporte les envois à une vitesse V constante à des courroies (48, 49) transporteuses entraínées, caractérisé en ce que, d'après la distance entre le bord arrière de l'envoi (1") précédent déjà retiré et un premier capteur (71/71') détectant les envois, qui se trouve à la position où les envois (1') à retirer ont atteint une vitesse de retrait moyenne définie, on détermine, à l'instant où le bord avant de l'envoi (1') à retirer vient d'atteindre le premier capteur (71/71'), la vitesse de l'envoi (1') à retirer entre le premier capteur (71/71') et seulement un deuxième capteur (73, 73') détectant les envois, qui se trouve au point de prise en charge par les courroies (48, 49) transporteuses, vitesse qui est nécessaire à cet envoi (1') pour que l'intervalle de consigne entre les deux envois (1', 1") soit présent à l'instant où son bord avant atteint le deuxième capteur (73, 73').
- Procédé suivant la revendication 1, caractérisé en ce que la distance entre le bord arrière de l'envoi (1") déjà retiré, serré dans les courroies (48, 49) transporteuses, et le premier capteur (71/71'), à l'instant où le bord avant de l'envoi (1') à retirer vient d'atteindre le premier capteur (71/71'), est déterminée d'après la différence de temps entre la détection du bord arrière de l'envoi (1") retiré et la détection du bord avant de l'envoi (1') à retirer au premier capteur (71/71'), et d'après la vitesse V des courroies (48, 49) transporteuses.
- Procédé suivant la revendication 1, caractérisé en ce que la distance entre le bord arrière de l'envoi (1") déjà retiré, serré dans les courroies (48, 49) transporteuses, et le premier capteur (71/71') est déterminée d'après la différence de temps entre la détection du bord arrière de l'envoi (1") retiré et la détection du bord avant de l'envoi (1') à retirer au premier capteur (71/71'), à l'aide d'un générateur (80) d'impulsions relié aux rouleaux (43, 44) entraínés des courroies (48, 49) transporteuses.
- Procédé suivant la revendication 1, caractérisé en ce que la distance entre les capteurs (71/71', 73/73') est, à la vitesse maximale définie de retrait, suffisante pour obtenir une modification maximale définie de l'intervalle.
- Procédé suivant l'une des revendications 1 à 4, caractérisé en ce qu'afin de compenser le temps de réaction de la commande, qui réduit la course disponible pour la modification de l'intervalle, la vitesse de retrait est modifiée d'une manière correspondante à partir de la première cellule (71/71') photoélectrique.
- Procédé suivant l'une des revendications 1 à 5, caractérisé en ce qu'afin de compenser le temps d'accélération lorsque la vitesse est modifiée, la vitesse de retrait est augmentée ou abaissée d'une manière correspondante.
- Dispositif de retrait d'envois plats à l'aide de courroies (48, 49) transporteuses entraínées à vitesse constante, comportant un organe de retrait pour apporter des envois plats aux courroies (48, 49) transporteuses à partir d'une pile (100), et comportant un montage (60) de commande pour commander les instants et vitesses de retrait en fonction de la distance respective entre chaque envoi (1') à retirer et un envoi (1") déjà retiré, caractérisé en ce qu'il est seulement prévu deux capteurs (71/71', 73/73'), le premier capteur (71/71') se trouvant à la position où les envois (1') à retirer ont atteint une vitesse de retrait moyenne définie et le deuxième capteur (73, 73') se trouvant au point de prise en charge par les courroies (48, 49) transporteuses, et en ce que le montage (60) de commande est conçu de telle sorte que, d'après la distance entre le bord arrière de l'envoi (1") précédent déjà retiré et le premier capteur (71/71'), on détermine, à l'instant où le bord avant de l'envoi (1') à retirer vient d'atteindre le premier capteur (71/71'), la vitesse de l'envoi (1') à retirer entre les deux capteurs, vitesse qui est nécessaire à cet envoi (1') pour que l'intervalle de consigne entre les deux envois (1', 1") soit présent à l'instant où son bord avant atteint le deuxième capteur (73, 73').
- Dispositif de retrait suivant la revendication 7, caractérisé en ce qu'un générateur (80) d'impulsions, relié aux rouleaux (43, 44) entraínés des courroies (48, 49) transporteuses, est présent pour déterminer les distances parcourues par les envois (1") serrés dans les courroies (48, 49) transporteuses.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19801309 | 1998-01-15 | ||
DE19801309A DE19801309C1 (de) | 1998-01-15 | 1998-01-15 | Verfahren zur Steuerung einer Abzugsvorrichtung für flache Sendungen von einem Stapel |
PCT/DE1999/000025 WO1999036195A1 (fr) | 1998-01-15 | 1999-01-08 | Procede de commande d'un dispositif servant au retrait d'envois plats d'une pile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1045733A1 EP1045733A1 (fr) | 2000-10-25 |
EP1045733B1 true EP1045733B1 (fr) | 2002-10-30 |
Family
ID=7854699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99930887A Expired - Lifetime EP1045733B1 (fr) | 1998-01-15 | 1999-01-08 | Procédé de commande d'un dispositif servant au retrait d'envois plats d'une pile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1045733B1 (fr) |
JP (1) | JP3893243B2 (fr) |
DE (2) | DE19801309C1 (fr) |
WO (1) | WO1999036195A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10355292B4 (de) * | 2003-11-27 | 2005-11-03 | Siemens Ag | Verfahren und Einrichtung zum Vereinzeln von flachen Sendungen |
JP4469671B2 (ja) | 2004-07-09 | 2010-05-26 | 株式会社東芝 | 紙葉類取り出し装置 |
CN109821770A (zh) * | 2019-04-10 | 2019-05-31 | 河北奈奎斯科技有限公司 | 一种全自动毛巾缺陷捡出机 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH650995A5 (de) * | 1981-02-10 | 1985-08-30 | Frama Ag | Zufuehreinrichtung fuer einzelne flache materialstuecke. |
US4541624A (en) * | 1982-03-24 | 1985-09-17 | Nippon Electric Co., Ltd. | Flat article feeding apparatus |
DE3424397A1 (de) * | 1984-07-03 | 1986-01-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Vereinzelungseinrichtung fuer flache gegenstaende |
DE3544093A1 (de) * | 1985-12-13 | 1987-06-19 | Licentia Gmbh | Verfahren zum steuern des abzugsvorganges bei einer vereinzelungseinrichtung und anordnung zur durchfuehrung des verfahrens |
GB9113784D0 (en) | 1991-06-26 | 1991-11-06 | Vickers Plc | Ship stabiliser automatic gain control system |
DE19607304C1 (de) * | 1996-02-27 | 1997-07-31 | Aeg Electrocom Gmbh | Verfahren zur Steuerung einer Abzugsvorrichtung für flache Sendungen von einem Stapel |
-
1998
- 1998-01-15 DE DE19801309A patent/DE19801309C1/de not_active Expired - Fee Related
-
1999
- 1999-01-08 EP EP99930887A patent/EP1045733B1/fr not_active Expired - Lifetime
- 1999-01-08 DE DE59903244T patent/DE59903244D1/de not_active Expired - Fee Related
- 1999-01-08 WO PCT/DE1999/000025 patent/WO1999036195A1/fr active IP Right Grant
- 1999-01-08 JP JP2000539948A patent/JP3893243B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO1999036195A1 (fr) | 1999-07-22 |
JP3893243B2 (ja) | 2007-03-14 |
DE19801309C1 (de) | 1999-08-12 |
JP2002509063A (ja) | 2002-03-26 |
DE59903244D1 (de) | 2002-12-05 |
EP1045733A1 (fr) | 2000-10-25 |
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