WO2002051727A1 - Commissioning facility with flow shelf and filling device - Google Patents

Abstract

The invention relates to a commissioning facility (1) having at least one automatic commissioning machine (2) with a flow shelf (3) and a filling device. The filling device has firstly stationary plane control devices (5) with horizontally displaceable transport channel units (7) for receiving and transporting a group of articles and simultaneously filling selected article chutes; secondly, other mobile intermediate storages (9) with article receiving chutes (10) arranged one next to the other and on planes for receiving and for transporting the groups of articles from a filling point (A) anywhere in the warehouse to the plane control devices (5), and thirdly, at least one intermediate storage lift (11) in the area of the plane control devices (5) for arranging an intermediate article storage (9) in a lower height range (B) of the flow shelf with the purpose of transferring groups of articles to a selected, lower transport channel unit (7) and for lifting an intermediate article storage (9) in at least one upper height range (C) of the flow shelf with the purpose of transferring the article groups to a selected transport channel unit (7) located above thereof.

Description

 PICKING SYSTEM WITH CONTINUOUS SHELF AND FILLING DEVICE

The invention relates to a picking system with at least one automatic picking system, which has at least one flow rack with oblique article channels arranged next to one another and in levels, which can be filled with articles by a filling device, and a method for filling the flow racking of the order picking machine of the order picking system.

According to EP 0 794 135, filling is already partially automated and rationalized for vertical or almost vertical filling chutes of an automatic picking system which are accessible from the front. In this case, not only a single article, but also an entire stack of articles is simultaneously stored in the filling shaft by the machine. The article stack is included in a special box-like magazine

Longitudinal slot handled in a long side wall. The magazine serves the purpose that the article stack is kept together consistently, from the storage point at the goods receipt to the loading process itself. The magazine is adapted to the shape of the article or the majority of the stacked articles. After a loading process in the picking machine, the empty magazine is returned to the incoming goods department for refilling with articles.

In a picking system of the type mentioned at the beginning of WO 99/52796, a filling device in the form of a movable shelf operating device assigned to the article shelf with a movable article handling device with an article stacking holder is provided for a backward filling of the flow racks, which is in a substantially vertical position with a corresponding vertical article stack accommodated in the holder, can be positioned at each higher longitudinal end of an article channel on the rear shelf filling side, the article stack holder having a lower individual article ejector which can be displaced in the transverse direction of the stack and through which the bottom article of the article stack of the holder can be inserted into the selected one Article channel can be inserted. The shelve- The operating device can be moved freely or transported on a rail system for the transport of entire batches of articles from a remote point of the incoming goods to the filling side of the flow rack and vice versa. It is advantageous that separate article stack magazines can be dispensed with in contrast to the aforementioned prior art. Such magazines therefore neither need to be produced, nor adapted to a particular stack of articles, nor transported within the system of the order-picking system, in particular to be returned as empties from the order-picking machine to the goods receipt, which is normally far away. The order picking system allows a favorable work place design at the goods receipt.

The object of the invention is to enrich the aforementioned prior art by creating an order-picking system of the type mentioned, the flow rack of which can be filled effectively and reliably with simple means, and by creating an effective filling method.

This task is solved by the subject of the independent agreement. Advantageous configurations result from the dependent claims 2 to 16.

An advantageous filling method is characterized by the features of independent claim 17, further developed by the features of dependent claim 18.

According to the invention, the picking system has a special filling device. The filling device is composed of a combination of stationary level control devices, at least one mobile article buffer and also at least one article buffer lift.

The stationary level control devices are located on the back of the one or more flow racks, with at least one in each level of the article channels on the back of the M? 3 ö d Φ d = d

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The unit of transport channels corresponds to a series of article receiving channels of an article buffer.

The transport channels of a unit are advantageously constructed identically.

The transport channel unit is in particular a modules component or has at least one modules component.

The level operator device can also preferably be a modules component.

The transport channel can comprise a conveyor belt and two sensors at the end for the controlled arrangement of an article group on the conveyor belt.

Each transport channel in particular comprises a separate motor and a separate control, which are preferably arranged on the side of the conveyor belt for better accessibility (electronics), motor below.

The unit of the transport channels can be displaced on the level control device in the direction of the transport channel, preferably in two opposite end positions, an aligned connection to a selected article channel of the flow rack in the first end position adjacent to the flow rack and an aligned connection to one in the second end position remote from the flow rack Article receiving channel of the article buffer located in the intermediate buffer lift is possible.

The unit of the transport channels can be displaced into an intermediate position and, in the intermediate position, horizontally displaceable, in particular movable and / or displaceable, by the level control device parallel to the rear of the flow rack. The unit of the transport channels is expediently guided in an upwardly loaded guide rail of the level control device located in the area of the rear of the flow rack and is supported on at least one lower driven roller on a support rail parallel to the guide rail of the level control device and / or via a driven gear wheel for control selected article channels of the flow rack can be moved horizontally, the support rail being located off-center to the level control device on the side adjacent to the guide rail.

The unit of the transport channels has at least one clamping device for locking articles in the transport channels in the event of a horizontal displacement.

The level control devices of all levels of the flow rack are preferably attached, in particular suspended, to vertical struts via horizontal cross struts, which extend over the entire height of the flow rack, are assigned to the flow rack and are fastened to the flow rack.

The intermediate buffer lift can have a frame and an essentially horizontal lifting bar with a fastening device for an intermediate article buffer, the lifting bar being displaceably guided on the frame.

The article intermediate buffer preferably has article receiving channels which are inclined in the longitudinal direction and angled on both sides in the transverse direction, with a releasable locking device at the lower longitudinal end.

The article receiving channels are angled sheets or composed of individual rolls.

A flow rack of an automatic picking system of a picking system is filled in such a way that the filling point, preferably at goods receipt or when there is an overstock, mobile article buffers are filled with article receiving channels arranged next to each other and in levels for receiving and transporting pre-sorted article groups and moved from the filling point to stationary level control devices arranged on the rear of the flow channel, in particular, which each contain a horizontally displaceable transport channel unit consisting of several, preferably four transport channels, each for receiving and transporting an article group, that filled article intermediate buffers in an intermediate buffer lift in the area of the level control devices in a lower flow rack height area, preferably in the lower one Half of the flow rack are arranged and article groups are transferred into a lower selected aligned unit of transport channels, preferably simultaneously, or article intermediate buffers in an upper flow r egal height range, preferably lifted up in the upper half of the flow rack and article groups are transferred to an upper selected aligned transport channel unit preferably at the same time, and that the transferred article groups in the driven transport channel unit are offset horizontally parallel to the rear of the flow rack and at a specific selected one Align row of adjacent article channels of the flow rack and the row of article channels are preferably transferred simultaneously.

Empty article buffers are returned to the filling point for refilling with pre-sorted article groups.

The invention thus creates mobile, in particular freely movable, rail-bound article buffers, which have inclined and transversely angled article receiving channels in the longitudinal direction, which together have a special pattern in horizontal and vertical arrangement, namely the pattern of part of the cυ>(->

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modular components or at least have modular units that can be easily adapted to certain lengths, heights, widths, slopes of a picking system. In particular, the level control devices have simple, easily changeable scaffold plug-in parts, which can preferably be constructed using the same modular system as the flow rack itself. The connecting means between the flow rack and level control device can also be constructed correspondingly simply. If an existing order-picking system is to be changed in terms of construction, in particular to be expanded, this is not a problem associated with a particular outlay in relation to the change of the filling device according to the invention that is then required.

The invention is explained in more detail below on the basis of an exemplary embodiment with reference to the accompanying drawing; show it:

FIG. 1 shows a schematic top view of an order-picking system with flow racks, level control devices, article intermediate buffer lift and article intermediate buffer,

FIG. 2 shows the order picking system in a schematic front view,

3 shows a level control device according to FIG. 1 in a schematic perspective view, with a transport channel unit in a middle displacement position,

FIG. 4 shows the level control device of FIG. 3 with the transport channel unit in a front shifting end position,

FIG. 5 shows an individual transport channel of the transport channel unit according to FIGS. 3 and 4 in a perspective view, FIG. 6 shows a flow channel with adjacent level control devices according to FIG. 1 in a schematic end view,

FIG. 7 shows an article intermediate buffer lift with an inserted article intermediate buffer in a schematic perspective view,

FIG. 8 shows a detail of FIG. 7 in an enlarged side view,

FIG. 9 shows a detail of two adjacent article channels of the article buffer in a perspective view,

10 shows the article intermediate buffer in an article intermediate buffer lift with an assigned level operator device in a schematic front view,

Figure 11 shows the detail X of Figure 10 in a larger representation, and

Figure 12 shows another detail of Figure 10 in a larger representation.

According to the drawing, an order-picking system 1 comprises an automatic order-picker 2 which has four flow racks 3 arranged next to one another in the longitudinal direction.

In each flow rack 3 there are inclined article channels 4 arranged next to one another and in levels, which can be filled with articles by a filling device.

The filling device has stationary level control devices 5, a stationary article intermediate buffer lift 11 and mobile article intermediate buffers 9. co KJ (\ J \ -> - '

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Area D1 or El of article channels 4 of the flow rack 3.

A unit 7 of transport channels 8 corresponds to a series of article channels 10 of an article buffer 9.

The unit 7 of the transport channels 8 can be displaced in the direction of the transport channel in two opposite end positions F, G on the level control device 5, with an aligned connection to a selected article channel 4 of the flow rack 3 in the first end position F adjacent to the flow rack and in the second an aligned connection to an article receiving channel 10 of the intermediate article buffer 9 arranged in the intermediate buffer lift 11 is possible from the flow position end position G.

The unit 7 of the transport channels 8 can be displaced into an intermediate position and, in the intermediate position H, horizontally offset, in particular moved and / or displaced, by the level operating device 5 parallel to the rear of the flow rack 3.

The unit 7 of the transport channels 8 is guided in an upwardly loaded guide rail 14 of the level control device located in the area of the rear of the flow rack 3 and is supported on at least one lower roller 15 on a support rail 16 parallel to the guide rail of the level control device and for controlling selected article channels 4 of the Flow racks 3 are horizontally displaceable, the support rail 16 being located eccentrically to the level control device 5 on the side adjacent to the guide rail 14.

The unit 7 of the transport channels 8 has at least one clamping device for locking articles in the transport channels in the event of horizontal displacement.

The level control devices 5 of all levels of the flow rack 3 are connected to vertical struts via horizontal cross struts 22. ben 23 attached, in particular suspended, which extend over the entire height of the flow rack 3, assigned to the flow rack and attached to the flow rack.

The intermediate buffer lift 11 has a frame 18 and an essentially horizontal lifting bar 19 with a fastening device 20 for an article intermediate buffer 9, the lifting bar being displaceably guided on the frame.

The intermediate article buffer 9 has longitudinally inclined and transversely angled article receiving channels 10 with a releasable locking device 17 at the lower longitudinal end.

The article receiving channels 10 are angled sheets or composed of individual rolls 21.

The invention realizes an automatic refill for an automatic picking machine as an independent machine that can also be retrofitted to existing systems. The machine is primarily used to increase the refill performance of known systems. Electronic user guidance also increases the certainty that the articles are filled into the correct article channel of the flow rack 3.

The level control devices 5 travel horizontally along the entire flow rack, preferably on a rail system which is mounted on the rear of the flow rack 3 of the automatic picking device 2, and convey the horizontal article stacks on the transport channels 8 from the article intermediate buffer 9 to the individual article channels 4 des Flow rack 3.

The system has a modular structure. All transport channels are constructed in the same way and can be used on every level control unit 5 without any modifications. Any kind of co CO rt μ>

Cπ o Cπ o cπ o Cπ

3 00 • -3 tQ 3 ta 3 Φ Pi α 53 WQX <! HN ta U Ό Ml ^ ^» a rr φ D. 03 NH ö ta 3 JM PJ Φ μ- Φ i Φ J Φ Φ Φ O ri Φ d 3 ddd = O ii ii μ- Φ μ- 53 3 φ 3 Φ tr Q PJ 3 3 3 Ml 03 03 ii Φ 03 ii PJ ii i ii ii H ¹ ü Φ μ- 3 ri Ω Φ ii D. 3

3 μ- ¹ 3 03 O Pi 3 Ω N 3 3 03 X Φ Ω Ω H rr μ- Φ φ tr tr μ- 53 03 tr

Φ φ 03 ^> -> CO M Φ 3 tr 53 Φ 03 Ω o = 3 tr tr <X »i tr PJ Φ φ H Ω φ

X μ- * Ü ri 03 ri μ- tQ Ω tr 3 <0 μ- 3 tr 3 H 0 J J 03 3 3 ti O 03 ri tr Pi

PJ Ω 0 rr rr rr Φ rr tr Φ O tr 03 03 0 μ- 3 <PJ d ri 3 d 3 O: D- N φ Φ PJ PJ μ-

3 tr ri μ- Φ μ- tQ μ- 3 ri Φ Ω Ω φ Φ o d 3 tQ J 3 0 CQ Φ d 3 3 3 H Φ

PJ = N rr? 3 X φ Ml φ Φ i 3 tr tr rr tr 3 3 Mi rr PJ: H rr 03 03 03 rr 03 rr 3

H "Φ X φ 03 Φ 3 O 3 3 μ- Φ μ- X tr ü Φ 3 N O μ- rr O H • d Φ tQ

Φ μ- JH Pi K φ tr Ω 3 φ PJ PJ o Φ CQ tr 53 ii Ω tQ Φ i μ- o ri Φ rr 3 X 3 N Φ g 3 Φ tr H> d tr 3 ri 03 Ω Q 03 Φ Φ μ- tr Φ h- ¹ Φ Ω ri μ> μ- JJO 53 3 03 03 α rr 3 d Φ PJ: μ- tr PJ Ω 03 03 & 03 MH 3 tr rr Φ PJ: o tQ 3 3 μ- Ω ^• ; μ- d Ml 3 3 3 μ- M tr <l μ- Ω Φ rr O: Φ φ X μ- rr

PJ: rr 03 INI tr 03 φ 3 Pi Mi. Φ o Pi φ 03 μ- o = rr tr 03 t 3 PJ 3 J 3

& tr oo M μ- Ω PJ M rr 3 Q Φ Φ 3 3 φ N Φ X Pi - 3 3 tQ μ-

Φ φ • Φ Φ tr tr d = Φ Q ri ri t i oo rr Pi φ CO α M rr 3 * a O Φ tr PJ Φ 3

03 Ml ri φ 3 03 3 Φ CQ d μ- μ- 3 H μ- o = 3 ri Pi tr φ H 03 o = ö - rr 3 r 03 03 ri Φ 2 D 3 N Φ Φ 03 Φ μ- iQ 03 Pi ii O rr PJ φ 03 rr

> t PJ. • d μ- μ-. PJ = IQ μ- d ri "ri Ω O Φ Pi J μ- rr 00 Φ φ ü P. Pi d Φ tQ rr Φ rr 53 tö 3 rr H 03 tQ tr J <! 3 Φ X 53 Pi Φ H Pi rr Φ μ- μ- M Ml 3 X 3 rr φ Φ • ti rr Φ Φ d μ- ri rr μ- Pi Φ tr μ- H Φ μ- i 3 φ 03 Mi φ d = μ- cn Φ i tö PJ Φ tr rr φ> tr Φ ü Φ 3 rr 03 rr ri

X rr 3 Φ 3 tr φ <Pi PJ Φ σ 3 3 Φ ≥! o o = J Pi i rr

Φ φ tQ tr »i Φ ii d = Φ 03 Φ Pi Ml PJ 03 3 Φ 3 i 3 tö ^ ta Φ 53 ta

H- ¹ 53 ri PJ φ MN tr i rr 3 φ d = 03 • d μ- OH Pi Pi J 3 i D. Φ tr

N Φ Φ 3 <£> μ- d φ ri Φ 3 o d 03 CQ 3 3 Φ Φ d PJ ii Pi PJ ri Φ

53 ri <J μ- Pi 3 Φ ri d & H ¹ ta ri 3 μ- d rr ri 03 Ml tr rr φ J 03 P. 3 μ- Pi O Ω Φ μ- tQ μ- Pi 3 rr μ- Pi Φ tr rr Ω 3 J Φ tr O Φ μ- 3 d Φ φ

03 Φ ü tr 03 ri 3 μ- μ- 03 d φ Φ 3 Φ X Pi tr CQ tr M PJ d K ri X • 03 Φ 3 o 3 N rr rr Φ φ 3 Ω 3 ri 3 J μ- 53 3 3 3 Φ μ- • tr - d <μ- N 3 3 tr tQ H i Φ 3 φ d P. μ- μ- P- 3 tsi Φ tQ * ü ^»

Φ tQ μ- 03 PJ Mi PJ rr rr Φ ri H Φ PJ: 03 3 Φ Ω tQ N μ- 03 53 μ- Φ tr

3 tr 03 φ μ- 3 rr tr 3 X J i 03 & M φ rr ri X Φ d d Ω rr φ 3 3 Φ

Ό μ- 53 M Ω. 3 Φ PJ o = 3 PJ Φ Φ φ Φ 3 3 μ- tr J μ- Φ rr μ- d H φ Φ tr Pi ü μ- d tr 3 03 3 α Pi α ri Φ N rr Φ Φ rr O 3 t - ¹ rr

Ml μ- Φ J 3 Ω Φ 3 ü 03 d μ- 00 3 03 μ- 3 ~ Φ ri Φ co μ- Φ

Ml Φ 03> d Pi tr μ- Φ O w φ rr Ω 3 i tQ ri Pi ¹ φ • a Ω 3

Φ 3 Φ ri 3 - 3 3 ri O Ω 3 PJ Φ tr N X P- tQ Φ Φ PJ 3 o = tr • ri rr X Φ Pi rr ri tr tQ 3 ri μ- Φ J J Φ 03 μ- ri tr 03 φ

03 PJ <μ- = μ- Pi ri μ-> -3 Pi X rr H Φ 03 φ μ ^j 3 w tr PJ Ω d = μ- O Di ta d μ- XX 3 PJ <φ ri μ- PJ X PJ ii ta Ω Pi 3 3 ri 3 tr tr 03 ri Φ f 03 so Ω Φ Φ c rr 03 O PJ φ 3 PJ d PJ = tr tr φ. Φ J rr φ Φ Φ i PJ tr ri M ri Φ 3 tö 3 PJ: 3 Mi rr Φ μ- μ- 3 ti Ω Φ 3 ii N 3 tr 03 3 φ N ri rr 0 φ 03> H PJ: ri 3 φ Ω tr - d J rr d μ- <HM Φ 03 PJ rr 53 • d ri Φ H Φ cπ Φ Pi tr ta tö rr O tr 3 03 3 PJ ta

3 μ- ri PJ Φ 3 O φ o rr Φ tQ 3 φ Φ tr Φ. rr μ- μ- μ- D. d

Φ Φ PJ 03 α H- tQ ri tQ ri μ- oo PJ 3 tr Φ Φ 03 3 ta 3 Ml M ii 3 03 d rr Φ. d rr X J H d Φ J rr

3 Φ 3 d 03 CÄ3 Pi d S 3 PJ ta d PJ 3 Pi d 3 Φ

M 03 Φ ri Φ 3 Φ Pi μ- Φ d Pi 3 J Pi μ-> • d 3 Ω rr σ CQ Ml PJ 03 μ- 03 03 3 Φ 3 ii D. 03 φ 3 Di tr μ-

3 ri O tr μ- Φ μ- Ω J φ CQ rr d φ o = 3 CQ tr rr ri 53 Φ J ti Φ X 3 tr Pi M 3 H PJ = Pi ι-3 3 ri 03 Di rr Φ

Φ μ- rr μ- J 03 M 3 μ- μ- Φ 3 03 tQ Φ 3 φ d ri Q rr Φ μ- φ 3 μ- μ- XX φ d> rr φ rr tr 3 PJ o Φ μ- D. 03 3 J> Φ 03 tQ 53 μ- Ω rr Φ PJ Mi O μ- 3 H ü μ- Ω ri Ω Φ Pi 3 μ- 3 tr - φ rr tr

, 3 φ ii Ω 3 rr J er Φ 3> tr Pi PJ: tr 03 3 rr * a μ- rr J PJ: μ- Φ tr 3 μ- rr ri μ- rr φ Di tö • 0 = d M Φ Φ α d H 3 μ- φ μ- tQ 3 Φ rr φ 3 Φ φ ii 3 03 H "μ- μ- Ml Φ φ μ- φ Φ 3 μ- cπ H α. 3 φ 1 tr ii 3

Articles can be transferred from such a four-unit unit to the level control device at the same time.

The link between the article and the article buffer channel is made by scanning the article barcode and the channel barcode.

In order to ensure the alignment of the articles to a horizontal stack despite manual filling, the article intermediate buffer channels are inclined around the longitudinal axis. The inclination is chosen so large that the articles align themselves along the side guide. In order to be able to transfer the articles to the level operator device, the article channels are aligned.

The level control device 5 runs on two rails. The front guide rail 14, i.e. the rail behind the flow rack takes over the control of the vehicle. It also contains the toothed belt and the busbars. The rear support rail 16 is mounted as close as possible to the flow rack (slightly in front of the center of gravity of the level control device). The small distance is important so that the back of the flow rack remains accessible during maintenance.

The level control device 5 is primarily responsible for the movement along the rail. However, it also has to take care of the communication of a higher-level control computer (RISK) with the individual transport channels.

The level control device 5 is positioned in two

Steps. The rough positioning takes place via an increment encoder, which is attached to the motor. The fine positioning is carried out with a sensor that can detect separators. Small displacements and bending of the dividers are compensated for.

When learning, the level control device 5 moves along the flow rack 3 and remembers the positions of the separators. like the module boundaries. The learned data is compared with the configuration of the flow rack of the automatic picking system in order to ensure the consistency of the learning data.

When an article channel 4 of the flow rack 3 is filled during operation, the articles are conveyed into the article channel of the flow rack at low speed. This separates the articles and there are no problems with simultaneous ejection. The allowed speed is determined by a heuristic (the longer, the faster, - the heavier, the slower). If the machine is at a standstill, it can be filled at full speed.

All preferably four transport channels 8 are filled at the same time. However, the individual transport channels work autonomously, i.e. they are only given the command to load and the transport channels report success or failure. Of course, the level control device must be in the correct position and have the transport channels in front of it in the filling position.

The control commands are transmitted from the higher-level control computer or the RISK to the level control device 5 via two conductor lines. Since only a half-duplex connection is possible, the level operator device cannot report an error status on its own. The RISK must always ask whether everything is OK.

In order to detect transmission errors, a checksum is calculated and also transmitted. As additional security, critical commands and data (positioning commands, configuration data, etc.) are only transmitted when the level control device is at a standstill.

To control the picking system 1, user guidance by means of RF terminals is part of the inventory management of Flow racks 3 of the automatic picking machines 2, the management of the intermediate article buffer channels 10 and the generation of the transport channels 8 for the level operator device 5.

The user guidance takes place via RF terminals. The employee is shown the items to be refilled with the number and geocode. The latter collects them and brings them to the intermediate article buffer 9. The articles are scanned there and the user is shown the appropriate intermediate buffer channel 10. After filling the channel, a barcode on the channel is scanned for confirmation so that the system is informed when the filling is complete.

The inventory of the individual article channels 4 of the flow racks 3 can only be determined by counting the ejections and fillings. Since it is important for the automatic refill function that there are no more articles in an article channel 4 than assumed, all error handling routines (jamming articles, etc.) must be designed so that fewer articles than assumed are in an article channel are located. Should an article channel 4 actually become empty, the calculated and the actual fill level can be adjusted again.

The management of the article intermediate buffers 9 has to ensure that the article stacks are arranged in the article channels at the correct levels. It also links the article to article intermediate buffer channel 10.

Claims

claims 1. Picking system (1) with at least one automatic picking device (2), which has at least one flow rack (3) with juxtaposed and in levels, inclined article channels (4) which can be filled with articles by a filling device, characterized in that the filling device includes the following facilities: - Stationary level control devices (5), at least one in each level of the article channels (4) being arranged on the back (6) of the flow rack (3), in which at least one horizontally displaceable transport channel unit (7) consists of parallel to the back of the flow rack several, preferably four, transport channels (8) are provided for receiving and for transporting a group of articles and for simultaneously filling selected article channels, - mobile, in particular movable, intermediate article buffers (9) with article receiving channels (10) arranged next to one another and in levels for receiving and transporting the article groups from a filling point (A) to the level control devices (5), and - at least one intermediate buffer lift (11) in the area of the level control devices (5) for arranging an article intermediate buffer (9) in a lower flow rack Height range (B), preferably in the lower half of the flow rack, for transfer of article groups into a lower selected aligned unit (7) of Transport channels (8) or for lifting an article buffer (9) into at least one upper flow rack height area (C), preferably in the upper half of the flow rack, for the purpose of transferring the article groups into an upper selected aligned transport channel unit (7). 2. Order picking system according to claim 1, characterized in that the rows and levels (D or E) of the article receiving channels (10) of an article buffer (9) a certain area (Dl or El) of article channels (4) of Flow rack (3) correspond. 3. Order picking system according to claim 1 or 2, characterized in that a transport channel unit (7) corresponds to a series of article channels (10) of an article buffer (9). 4. Picking system according to one of claims 1 to 3, characterized in that the transport channels (8) are constructed identically. 5. Picking system according to one of claims 1 to 4, characterized in that the transport channel unit (7) is a module component or has. 6. Picking system according to one of claims 1 to 5, characterized in that the level control device (5) is a module component or has. 7. Picking system according to one of claims 1 to 6, characterized in that the transport channel (8) comprises a conveyor belt and two sensors at the end for the controlled arrangement of an article group on the conveyor belt. 8. order picking system according to claim 7, characterized in that each transport channel (8) comprises a separate motor and a separate control, which preferably outside half of the conveyor belt. 9. Picking system according to one of claims 1 to 8, characterized in that the transport channel unit (7) on the level control device (5) in the direction of the transport channel in two opposite end positions (F, G) is displaceable, with in the first, the flow rack neighboring end position (F) an aligned connection to a selected row of article channels (4) of the flow rack (3) and in the second end position remote from the flow rack (G) an aligned connection to a row of article receiving channels (10) of the article buffer (9) arranged in the intermediate buffer lift (11) is established. 10. Picking system according to claim 9, characterized in that the transport channel unit (7) is displaceable in an intermediate position and in the intermediate position (H) by the level control device (5) parallel to the rear of the Flow rack (3) is horizontally displaceable, in particular movable and / or displaceable. 11. Picking system according to claim 10, characterized in that the transport channel unit (7) in an upwardly loaded, in the area of the rear of the flow rack (3) located guide rail (14) of the level control device and via at least one lower driven roller (15 ) supported on a support rail (16) parallel to the guide rail of the level control device and / or horizontally displaceable via a driven gearwheel for controlling selected article channels (4) of the flow rack (3), the support rail (16) being off-center to the level control device (5) on the the guide rail (14) facing side. 12. Picking system according to one of claims 1 to 11, characterized in that the transport channel unit (7) has at least one clamping device (17) for locking articles in the transport channels in a horizontal displacement. 13. Picking system according to one of claims 1 to 12, characterized in that the level control devices (5) of all levels of the flow rack (3) via horizontal cross struts (22) are attached to vertical struts (23), in particular which are suspended over the entire height of the flow rack (3), assigned to the flow rack and attached to the flow rack. 14. Order picking system according to one of claims 1 to 13, characterized in that the intermediate buffer lift (11) has a frame (18) and an essentially horizontal lifting bar (19) with a fastening device (20) for an article intermediate buffer (9) , with the walking beam being slidably guided on the frame. 15. Order picking system according to one of claims 1 to 14, characterized in that the intermediate article buffer (9) has in the longitudinal direction inclined and in the transverse direction angled article receiving channels (10) with a releasable locking device (17) at the lower longitudinal end. 16. Picking system according to claim 15, characterized in that the article receiving channels (10) angled sheets or from individual rollers (21) are composed. 17. Method for filling at least one flow rack of an automatic picking system of a picking system With a filling device, in particular according to one of Claims 1 to 16, characterized in that mobile article buffers (9) with article receiving channels (10) arranged next to one another and in levels are arranged at a filling point (A), preferably at the goods receipt or when there is an overstock ) for receiving and transporting pre-sorted article groups and moving, in particular moving, from the filling point (A) to stationary level control devices (5) arranged on the rear side (6) of the flow channel (4), each of which has a horizontally displaceable transport channel -Unit (7) from several, preferably four transport channels (8) each for receiving and for transporting an article group contain that filled article intermediate buffers (9) in an intermediate buffer lift (11) in the area of the level control devices (5) in a lower flow rack -Height range (B), preferably in the lower half of the flow rack and the article groups are transferred into a lower selected aligned unit (7) of transport channels (8) preferably simultaneously, or article intermediate buffers (9) are lifted into an upper flow rack height area (C), preferably in the upper half of the flow rack, and article groups in an upper selected aligned transport channel unit (7) is preferably handed over simultaneously, and that the transferred article groups in the driven transport channel unit (7) are offset horizontally parallel to the rear of the flow rack and for a certain selected row of adjacent article channels (4) of the flow rack (3 ) aligned and the row of article channels (4) are preferably transferred simultaneously. 18. The method according to claim 17, characterized in that that empty article intermediate buffers (9) are returned to the filling point (A) for refilling with pre-sorted article groups.