EP1045733A1 - Verfahren zur Steuerung einer Abzugsvorrichtung für Flache Sendungen von einem Stapel - Google Patents
Verfahren zur Steuerung einer Abzugsvorrichtung für Flache Sendungen von einem StapelInfo
- Publication number
- EP1045733A1 EP1045733A1 EP99930887A EP99930887A EP1045733A1 EP 1045733 A1 EP1045733 A1 EP 1045733A1 EP 99930887 A EP99930887 A EP 99930887A EP 99930887 A EP99930887 A EP 99930887A EP 1045733 A1 EP1045733 A1 EP 1045733A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- speed
- item
- take
- distance
- 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
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
- 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
-
- 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 a device for controlling the trigger according to the preamble of the independent claims.
- a different behavior of the mail items during the withdrawal process also results from the different position of the mail items in the stack from which the mail items are withdrawn. This also results in different gaps, which leads to a loss in throughput.
- the mail item to be withdrawn is therefore first accelerated to an intermediate speed value which is lower than a predetermined final speed in accordance with DE 196 07 304 Cl. As soon as the actual distance is equal to the target distance, the shipment is accelerated to the final speed.
- the invention specified in the independent claims is therefore based on the problem of creating a method and a device for withdrawing flat mail items from a stack, which control the take-off in such a way that one for the further processing of the mail items without a measuring section made up of sensors for detecting the mail items arranged in a row Consignments optimal minimum gap between the consignments is observed. It is no longer necessary to continuously measure the distance of the withdrawn consignment from the consignment to be determined in order to determine the point in time for acceleration of the consignment to be withdrawn. Rather, it determines the speed at which the mail item to be withdrawn has to be transported from the first sensor to the second sensor in order to reach the desired target gap, ie a sensor line is no longer necessary.
- a shaft 20 is fixedly mounted, but freely rotatable, on which a roller 21 is fastened.
- the shaft 20 also serves for the pivotable mounting of a rocker arm 22, which carries the axis 23 of a further roller 24.
- At least one take-off belt 25 is guided around the roller 21 and the take-off roller 24 as a separating member, the outer surface of which has a high coefficient of friction.
- the rocker 22 is supported by a schematically indicated spring 26, so that its respective position depends on the pressure force of the stack of mail items, of which the foremost mail item 1 'is shown when it is pulled off.
- the free end of the rocker 22 acts on a microswitch, not shown. If the pressure of the stack is too low, then closes a normally closed contact of the microswitch, whereby a gear motor (not shown) is switched on. At the end of the stack, this drives a supporting wall in the direction of the take-off roller 24 until, after reaching the position of the rocker corresponding to the intended pressing force, said break contact switches off again.
- the shaft 20 is driven controllably in the direction of the arrow by a servo motor, not shown.
- the edges pointing in the conveying direction, i.e. the leading edges of the mailpieces in the stack lie more or less close to a stop wall 40 which, in relation to the take-off belt 25, leaves a gap that allows the mailpieces to pass through, that is, the stack exit.
- a pair of continuously driven conveyor rollers 43 and 44 is arranged in the conveying path of the mail items, by means of which the mail items are forcibly conveyed as soon as they have reached their detection area.
- These conveyor rollers serve here as deflection rollers of conveyor belts 48 and 49, which are guided around further deflection rollers 50 and 51 in the conveying direction.
- the driven conveyor roller 43 is fixed, the conveyor roller 44 is compliant in a known manner, e.g. mounted on a pivotable lever, but this is not shown in the drawing for the sake of simplicity.
- a first light barrier 71/71 ' is arranged on a stop wall 40 as a sensor for mail item detection, the light receiver of which is designated by the reference numeral 71 and the associated light source by 71'. Photodiodes or phototransistors are used as light receivers.
- This light barrier 71/71 ' is so far behind the stop wall 40 that the mail items have reached an average take-off speed at this point. This average pull-off speed is with the help Statistical data set so that the necessary changes in speed to carry out any gap changes are as small as possible.
- a second light barrier 73/73 'with a light source 73' monitoring the detection area of the conveyor rollers 43 and 44 is provided.
- the distance between the light barriers is chosen so large that the largest necessary changes in the gap can be realized with a defined maximum speed change.
- These light barrier signals are evaluated by the microprocessor of a control circuit 60.
- FIG. 2 shows a simplified illustration in which a number of mail items is arranged in a stack 100.
- the withdrawal motor is switched on and the first program is started. If the front edge reaches the second light barrier 73/73 ', the take-off motor is stopped immediately and the item is further drawn off by 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 'becomes bright.
- Parameter Unit Meaning lidist m distance between the two light barriers 71/71 'and
- V m / s speed of the conveyor belt speed of the removed item as soon as it has reached the second light barrier 73/73 'Va m / s speed from which the removed item is accelerated from the first light barrier T s reaction time of the control to edge detection on the light barriers BZ s acceleration / braking time of the trigger motor
- the distance Lilgap of the rear edge of the withdrawn mailpiece from the first light barrier 71/71 'at the time at which the front edge of the mailpiece to be removed reaches the first light barrier 71/71' is determined using the edge signals of the first light barrier 71/71 'and one Clock generator 80 determined. If the front edge of the withdrawn mail item reaches the second light barrier 73/73 ', this mail item is transported further at the speed V. If the rear edge reaches the first light barrier 71/71 ', its position is known and the distance Lilgap is obtained by counting the clocks of the clock generator 80 up to the time of the leading edge signal of the subsequent shipment on the first light barrier 71/71'.
Landscapes
- Controlling Sheets Or Webs (AREA)
- Sorting Of Articles (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Pile Receivers (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19801309A DE19801309C1 (de) | 1998-01-15 | 1998-01-15 | Verfahren zur Steuerung einer Abzugsvorrichtung für flache Sendungen von einem Stapel |
DE19801309 | 1998-01-15 | ||
PCT/DE1999/000025 WO1999036195A1 (de) | 1998-01-15 | 1999-01-08 | Verfahren zur steuerung einer abzugsvorrichtung für flache sendungen von einem stapel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1045733A1 true EP1045733A1 (de) | 2000-10-25 |
EP1045733B1 EP1045733B1 (de) | 2002-10-30 |
Family
ID=7854699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99930887A Expired - Lifetime EP1045733B1 (de) | 1998-01-15 | 1999-01-08 | Verfahren zur Steuerung einer Abzugsvorrichtung für flache Sendungen von einem Stapel |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1045733B1 (de) |
JP (1) | JP3893243B2 (de) |
DE (2) | DE19801309C1 (de) |
WO (1) | WO1999036195A1 (de) |
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 JP JP2000539948A patent/JP3893243B2/ja not_active Expired - Fee Related
- 1999-01-08 DE DE59903244T patent/DE59903244D1/de not_active Expired - Fee Related
- 1999-01-08 WO PCT/DE1999/000025 patent/WO1999036195A1/de active IP Right Grant
- 1999-01-08 EP EP99930887A patent/EP1045733B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9936195A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1045733B1 (de) | 2002-10-30 |
DE59903244D1 (de) | 2002-12-05 |
WO1999036195A1 (de) | 1999-07-22 |
DE19801309C1 (de) | 1999-08-12 |
JP2002509063A (ja) | 2002-03-26 |
JP3893243B2 (ja) | 2007-03-14 |
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