EP2260950B1 - Procédé et dispositif de transport régulé d'objets - Google Patents

Procédé et dispositif de transport régulé d'objets Download PDF

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Publication number
EP2260950B1
EP2260950B1 EP20100163227 EP10163227A EP2260950B1 EP 2260950 B1 EP2260950 B1 EP 2260950B1 EP 20100163227 EP20100163227 EP 20100163227 EP 10163227 A EP10163227 A EP 10163227A EP 2260950 B1 EP2260950 B1 EP 2260950B1
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EP
European Patent Office
Prior art keywords
buffer module
buffer
filling level
module
designed
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.)
Not-in-force
Application number
EP20100163227
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German (de)
English (en)
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EP2260950A1 (fr
Inventor
Rainer Vogel
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Siemens AG
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Siemens AG
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Publication date
Priority claimed from DE102009031161A external-priority patent/DE102009031161A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2260950A1 publication Critical patent/EP2260950A1/fr
Application granted granted Critical
Publication of EP2260950B1 publication Critical patent/EP2260950B1/fr
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Classifications

    • 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
    • B07C1/025—Devices for the temporary stacking of objects provided with a stacking and destacking device (interstack device)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H83/00—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such
    • B65H83/02—Combinations of piling and depiling operations, e.g. performed simultaneously, of interest apart from the single operation of piling or depiling as such performed on the same pile or stack
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/321—Standing on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail

Definitions

  • the invention relates to an apparatus and a method for transporting objects, in particular postal items, to a processing device using at least one buffer device with a plurality of buffer modules connected in series.
  • An apparatus having the features of the preamble of claim 1 and a method having the features of the preamble of claim 12 are made DE 3444335 A1 known.
  • Fig. 8 of DE 3444335 A1 shows a separating device that separates upright mail pieces.
  • This separating device has a separator with a plurality of driver elements ("take-off belts 20") and a retaining element ("scraper 14").
  • the mailpieces are transported to a singler on a feeder which has the form of a U-shaped transport channel.
  • This feeder comprises an underfloor conveyor belt 36 and two side walls.
  • the one side wall is formed by an endless conveyor belt 34, which is guided around two vertical axes.
  • the other side wall also comprises such an endless conveyor belt 43 and downstream of a guide member 41 which is resiliently mounted rotatably about a vertical axis.
  • a switch 43 then turns off a downstream feed unit when the thickness of the stack between the endless conveyor belt 34 and the baffle 41 reaches a predetermined thickness limit.
  • the guide element 41 is part of a storage unit 38.
  • FIG. 10 shows a modification in which the one side wall passes through the endless conveyor belt 34 with a support wall 58 and the other side wall through a succession of rollers 52, 55, 73, 74, 75 is formed, wherein the rollers are resiliently mounted and are deflected by a thick stack. If a roller 52, 55, 73, 74,75 deflected beyond a predetermined amount addition, so will a switch 60, which temporarily stops the supply of additional mail.
  • an intermediate stacker for flat objects is described.
  • the objects should be transported to a distribution machine.
  • a feed trough F_z transports the articles to a feed switch W_z. This diverter directs the items to an entry stacker St_e.
  • An intermediate conveyor Z_ü conveys objects from the input stacker St_e to an output stacker St_a in such a way that the two stackers St_e, St_a are filled uniformly.
  • the two stackers St_e, St_a are arranged one above the other. In another embodiment, these two stackers are arranged side by side.
  • An additional josstapelnder object is stacked in both embodiments of the same page in a stacker St_e, St_a and withdrawn again.
  • Two level sensors in the form of two feeler lever contacts F1, F2 respectively measure the event that the thickness of the stack in a stacker St_e, St_a reaches a certain thickness.
  • a collecting station 4 has three stacking devices 5, 6, 7. The collecting station 4 forms packages 1.
  • a palletizer 8 deposits packages on a pallet 9. Each stacking device 5, 6, 7 each has a lift device 10.
  • Fig. 2 from EP 0429118 B1 shows an arrangement with a plurality of memory devices connected in parallel. Each memory device has a plurality of memory modules connected in series.
  • a "main feed track 1" transports mailpieces to the storage devices, a “main discharge track 8" transports mailpieces away from the storage units.
  • Fig. 1 from US 5,577,596 shows an arrangement for processing mailpieces.
  • This arrangement has four input stations ("input stations 1a - 1d") and a plurality of output units ("output positions 3a, 3b").
  • the input stations 1a-1d are connected via a transport device 5 to the output units 3a, 3b.
  • the transport device 5 has a plurality of individual transport elements 23, 105, 11, 113, 121, 123, which are pivotable in a plurality of positions. This creates a large number of possible paths.
  • a transport device is described with several parallel transport routes.
  • This transport device is used for example in a printer or copier and transports paper sheets.
  • Flat objects are transported, each flat object being temporarily sandwiched between two endless conveyor belts which pass around rollers with horizontal axes of rotation are.
  • the transported objects are distributed on the transport paths.
  • the transport path is operated in either "normal mode” or "standby mode", depending on properties of an item in the transport path and environmental conditions.
  • standby mode the article remains in the transport path for a predetermined period of time, e.g. B. so that a print on the object can dry.
  • a buffer device which connects a supply device with a removal device.
  • the buffer device comprises a plurality of parallel buffer modules arranged, for. B. storage pockets for flat mail.
  • the buffer device comprises twelve buffer modules, which are arranged in a matrix-like arrangement in three rows, each with four buffer modules. It is monitored when which item is moved to which buffer module and is removed again from it.
  • each transport unit is mounted on a turntable and thereby rotatably mounted about a vertical axis of rotation. Furthermore, each transport unit comprises two endless conveyor belts, which are able to pinch an upright postal item between them. A transport unit is able to transfer a mail item to a subsequent transport unit. Because the transport units are rotatably mounted, in each case at least one transport path can be established from each input to each output.
  • US 3,633,733 a transport device with a feed device and a plurality of parallel transport paths is described.
  • a classifier classifies the supplied items, e.g. B. according to their color.
  • a diverter allocates delivered items to the transport paths, depending on the particular result provided by the classifier.
  • a system of endless conveyor belts transports the mailpieces upright along a transport path.
  • a jogging module shakes upright mail during transport.
  • This vibrator module includes several vibrating rollers embedded in the bottom of the transport path.
  • the invention has for its object to provide an apparatus with the features of the preamble of claim 1 and a method having the features of the preamble of claim 12, which allow the amount of the objects transported to the processing device to remain within a predetermined range, as long as the supply of articles by the supply device is sufficient and which avoids a start-stop operation.
  • the buffer device comprises at least two buffer modules connected in series.
  • the feeder is configured to transport articles to the buffer device.
  • the buffer means is adapted to transport items such that the items transported from the delivery means to the buffer means pass sequentially through the buffer modules of the buffer means and thus to the processing means.
  • Each buffer module has one level sensor each.
  • Each level sensor of a buffer module is configured to measure a measure of the current level of the buffer module.
  • the controller is configured to control the supply of articles to each buffer module using the measured level measurements such that the current level of the buffer module remains within a predetermined level range.
  • the previous buffer module transports items at a faster rate than the subsequent second buffer module at least as long as the measured level measurement in the subsequent buffer module remains below the level intervention barrier.
  • the transport speed of a previous buffer module is temporarily reduced when the measured level measurement in the subsequent buffer module has reached or exceeded the level intervention limit.
  • the solution according to the device and the method according to the solution make it possible to largely decouple the throughput of objects by the processing device from the throughput through the feeding device.
  • the transport speed of the feeder can be controlled largely independently of the processing speed of the processing device. This is achieved in that the buffer device has at least two buffer modules connected in series and the transport speed of each buffer module can be regulated individually.
  • the invention it is possible to keep the number of objects that reach the processing device in a predetermined range, largely independent of the throughput by the feeding device. This makes it possible to achieve a maximum throughput by the processing device. It is avoided that initially a backlog of objects in front of the processing device occurs and later the processing device "has nothing to do".
  • the solution makes it possible to realize a modular device.
  • An additional buffer module can be added later, subsequently removing an existing buffer module.
  • the supply of other objects is regulated in this buffer module.
  • the level is the controlled variable whose value should be within a specified range.
  • the supply amount with which objects are supplied to the buffer module is the manipulated variable.
  • the fluctuating amount of articles fed into the feeder is a disturbance.
  • each buffer module can be changed continuously. This leads to lower mechanical loads on the components of the buffer module and also of the goods to be transported as a start-stop operation.
  • the flow of objects is compressed to the processing device. Gaps between supplied items are closed, and the processing capacity of the processing equipment is better utilized.
  • a subsequent second buffer module transports items slower than a previous fast buffer module as long as the level in the subsequent second buffer module remains below a predetermined level-intervention threshold. This ensures that the objects in the subsequent second buffer module are packed more densely than in the preceding first buffer module and on the other hand it is ensured that the level in the subsequent second buffer module remains in the predetermined range.
  • At least one buffer module may accommodate more articles by having at least one sidewall having a region that is movably disposed.
  • This buffer module is preferably designed as a U-shaped transport channel. The supply of an item in the buffer module increases the width of the buffer module, the removal reduces this width.
  • This time variable width of the buffer module can be easily and easily measured with little effort, z. B. by mechanical or optical means. Therefore, in one embodiment, this width is used as the measure of the level of the buffer module.
  • the buffer module has a return component with the movable sidewall portion.
  • This return component reduces the width of the buffer module when an article is removed from this buffer module by acting on the remindholkomponente on the sidewall area. Becomes conversely, an article is transported into this buffer module, the width of the buffer module is increased against the force of the return component.
  • This configuration causes objects in the buffer module to be pushed together by the side walls of the buffer module.
  • Flat objects can be transported in approximately vertical position, which is often desired because the processing device processes perpendicular objects.
  • objects can be transported whose respective dimension varies from object to object perpendicular to the transport direction.
  • objects can be transported so that the number of objects that are side by side, as seen in the direction of transport, varies over time.
  • the at least one buffer module with the movable side wall area has an underfloor conveyor belt.
  • a conveyor is embedded in the movable side wall, or the movable side wall is formed by the conveyor. The conveyor is pressed against the objects in the buffer module. Conversely, the supply of an item into the buffer module forces the conveyor against the transported items. As a result, a particularly good transport effect is achieved.
  • the invention is used to transport flat mail items (standard letters, large letters, catalogs, postcards and the like) to a singulator.
  • This separator operates in the embodiment as the processing device.
  • Fig. 1 shows the buffer device of the embodiment with mailpieces from above.
  • Fig. 2 shows the buffer device of Fig. 1 without mail from above.
  • An underfloor conveyor belt transports the flat mail items in a transport direction T to the singler.
  • the underfloor conveyor belt consists in the embodiment of four underfloor conveyor belt units U-Z, U-1, U-2 and U-3.
  • the mailpieces are approximately vertical and on one edge and are transported in a U-shaped transport channel with two side walls.
  • the one side wall S of the transport channel is fixedly mounted and acts as a stationary guide device.
  • the other side wall can be moved or rotated transversely or obliquely to the transport direction T, which will be described below.
  • the stationary side wall S is z. B. formed by a horizontal guide device in the form of a fence or a guardrail.
  • the separator V is mounted in the embodiment in addition to an imaginary extension of the stationary side wall S of the transport channel, ie in alignment with this side wall.
  • the separator V comprises at least two rollers, which are mounted on two vertical shafts and around which several endless conveyor belts are guided.
  • Fig. 1 an endless conveyor belt FV of the separator V is indicated.
  • the endless conveyor belts are thus arranged one above the other.
  • One area of these endless conveyor belts forms approximately one level with the guide device.
  • the conveyor belts are rotated so that they are rotated in this area in the transport direction T, preferably so that the mail items reach the singler without a jump in speed between the exit of the transport channel and the singler.
  • a stop wall A which extends transversely to the transport direction T and protrudes into the transport channel.
  • the stop wall A is mounted opposite the separator. This creates between the transport channel located in the region of the stop wall A and the separator V a slot Schl.
  • a scraper Ab is attached at the stop wall A.
  • the upright mail items are transported against the stop wall A and aligned by the stop wall A at their - seen in the transport direction T - front edges.
  • the mailpieces are also pressed by a movably mounted area SB-1, SB-2, SB-3 of a side wall against the opposite stationary side wall S in the form of the guide means and on the separator V to.
  • the conveyor belts F-V,... Of the separator V each pull off a mail piece from the stack or heap of upright mailpieces.
  • the scraper Ab and the stop wall A cause pre-separation of the mail piece.
  • the separator V separates this mail item and thereby prevents double deductions, ie that several postal items are withdrawn at once and are transported away overlapping.
  • Fig. 1 Several mail items are shown, which are aligned by the stop wall A to their - seen in the transport direction T - front edges. In addition, several mail items are indicated on the underfloor conveyor belt units U-1, U-2 and U-3.
  • the feed module Z-M acts as a feeder and is designed as a module of the transport channel.
  • Both the feeder module Z-M and each buffer module P-1, P-2, P-3 each comprise an underfloor conveyor belt unit U-1, U-2, U-3. If the modules P-1, P-2, P-3, Z-M are connected in series, a continuous underfloor conveyor belt is formed.
  • both the feed module ZM and each buffer module P-1, P-2, P-3 further each have a guide device unit, so that the modules connected in series form a continuous guide device.
  • the transport device comprises a continuous guide means, which does not belong to the modules P-1, P-2, P-3, ZM.
  • the guide device has z. B. the shape of a fence or a guardrail.
  • Each buffer module P-1, P-2, P-3 has in the exemplary embodiment a rocker S-1, S-2, S-3, which is rotatably mounted about a vertical axis of rotation D-1, D-2, D-3 is.
  • This axis of rotation runs near the one end of the rocker S-1, S-2, S-3 through the rocker, so that a free end of the rocker is formed.
  • This free end is the front end of the buffer module P-1, P-2, P-3 as viewed in the transport direction T.
  • a reset component RK-1, RK-2, RK-3, z As a tension or compression spring or a gas-filled piston pushes the free end of the rocker to the stationary side wall S.
  • a heap of mail in the buffer module P-1, P-2, P-3 pushes against the force of the return component RK-1, RK-2, RK-3 on the movable side wall area SB-1, SB-2, SB -3 with the rocker S-1, S-2, S-3 and thereby rotates the movable side wall portion SB-1, SB-2, SB-3 away from the stationary side wall S.
  • the transport channel is widened.
  • Fig. 1 It is shown how the mail presses the wings S-1, S-2, S-3 away from the stationary side wall S.
  • the reset component RK-1, RK-2, RK-3 is designed in each case as a tension spring and rotates the rocker S-1, S-2, S-3 about the rotation axis D-1, D-2, D- third
  • the movably arranged area SB-1, SB-2, SB-3 with the guide unit of the buffer module P-1, P-2, P-3 also constitutes a conveyor unit.
  • the conveyor unit with the rocker S-1, S-2, S-3 is configured to transport mail items in the transport direction T.
  • At least one endless conveyor belt F-1, F-2, F-3 is guided around these rollers or else two conveyor belts are vertically stacked one above the other.
  • These conveyor belts F-1, F-2, F-3 are designed to transport mail items in the transport direction T.
  • the conveyor belts F-1, F-2, F-3 are additionally guided on the rocker S-1, S-2, S-3 around a guide plate.
  • the force of the return component RK-1, RK-2, RK-3 presses the baffle from the inside against the conveyor belt and causes a stiff mail item is pressed against the stationary side wall S.
  • the baffle may be resiliently mounted.
  • a buffer module P-1, P-2, P-3 may additionally have a feed roller unit VE, which is preferably embedded in the stationary side wall S.
  • a mail piece is transported between the conveyor unit with the rocker arm S-3 in the movable side wall area SB-3 of the third buffer module P-3 and the feed roller unit VE and conveyed by the conveyor belt F-3 on the rocker arm S-3. 3 pressed against a feed roller VR of the feed roller unit VE.
  • the feed roller unit VE is preferably integrated into a side wall of the last buffer module-seen in the transport direction T.
  • the feed roller VR is controlled by the subsequent processing device - here: by the separator V -.
  • the feed roller VR causes, in cooperation with the stopper wall A, that those mail items in the transport channel, which are located near the stationary side wall, are pulled forward and the remaining mail items are retained by the stopper wall A.
  • the movably arranged area SB-3 presses the mail items onto the feed roller VR. This embodiment causes the mail items to be aligned at their leading edges on the stop wall A and that the separator V better, d. H. isolated at a lower rate of double doubles.
  • the feed roller VR sits on a vertical shaft whose axis of rotation V-DR runs near the free end of the boom V-Aus by the boom V-off.
  • the feed roller VR is rigidly connected to another roll V-wRO, which also sits on the shaft.
  • a drive belt V-Ri is led around the further roll V-wro as well as around the drive roll V-Ro.
  • the drive motor V-Mo rotates the drive roller V-Ro, and the drive belt V-Ri transmits the rotations of the drive motor to the further roller V-wRO and thus to the feed roller VR.
  • the tension spring V-Z rotates the boom V-off with the feed roller VR into the transport channel and toward the mailpieces and causes the feed roller VR to be pressed against the mailpieces.
  • the boom with the feed roller VR is rotatably connected to the bracket V-H, the drive motor V-Mo is fixedly connected to the bracket V-H.
  • the feed roller VR can also perform another function: if so many mail items have reached the separator V, that no further mail items are to be supplied, the feed roller VR stops. As a result, the supply of mail items in the separator V is interrupted.
  • Each buffer module P-1, P-2, P-3 has a level sensor FS-1, FS-2, FS-3.
  • the fill level sensor FS-1, FS-2, FS-3 is arranged above the buffer module P-1, P-2, P-3.
  • a camera takes pictures from the buffer module.
  • An evaluation unit evaluates the images from this camera in order to measure the current width of the buffer module by image evaluation.
  • each level sensor FS-1, FS-2, FS-3 designed as a position sensor.
  • the position sensor FS-1, FS-2, FS-3 of the buffer module P-1, P-2, P-3 measures how thick is the stack of those mail items which are located between the movable sidewall area SB-. 1, SB-2, SB-3 with the conveyor belts F-1, F-2, F-3 and the stationary side wall S are located.
  • the distance between the - seen in the transport direction T - the front end of the conveyor belts F-1, F-2, F-3 the rocker S-1, S-2, S-3 and the stationary side wall S approximately equal to the thickness of the stack and approximately equal to the smallest width of the buffer module P-1, P-2, P-3.
  • the level sensor FS-1, FS-2, FS-3 in the form of a position sensor measures the position of the front end of the rocker relative to a reference point, eg. B. relative to the thickness sensor itself.
  • This position sensor acts as a level sensor FS-1, FS-2, FS-3 of the buffer module P-1, P-2, P-3, and the measured distance, which is approximately equal to the thickness of the stack and thus is equal to the width of the transport channel, acts as the measure of the level.
  • each buffer module P-1, P-2, P-3 in the exemplary embodiment in each case comprises a light barrier Li-1, Li-2, Li-3, which measures the entry of a mail item into the buffer module.
  • the light barrier Li-1, Li-2, Li-3 is thus located - as seen in the transport direction T - near the rear end of the buffer module P-1, P-2, P-3 or between this buffer module and the previous one buffer module.
  • the mail item interrupts the light beam emitted by a transmitter LS-1, LS-2, LS-3 of the light barrier Li-1, Li-2, Li-3.
  • This transmitter LS-1, LS-2, LS-3 has the form of a light source.
  • a receiver LE-1, LE-2, LE-3 in the form of a photoelectric detector measures whether a light beam emitted by the transmitter LS-1, LS-2, LS-3 is incident on the receiver LE-1, LE -2, LE-3 hits or not.
  • the conveyor units F-1, F-2, F-3 form the one side wall of the U-shaped transport channel, the guide means in the form of the stationary side wall S, the other side wall.
  • the mailpieces are transported upright between conveyor units F-1, F-2, F-3 on the wings S-1, S-2, S-3 and the stationary side wall S.
  • the conveyor units F-1, F-2, F-3 on the rockers S-1, S-2, S-3 are able to erect a tilting or laterally overturned mail piece again. For each conveyor units pushes a mail item in the transport channel against the guide means and spends or keeps the mailpiece in an upright position.
  • Each underfloor conveyor unit U-1, U-2, U-3 and the conveyor unit F-1, F-2, F-3 of each buffer module P-1, P-2, P-3 are each a separate drive.
  • This drive can be designed as one motor per unit or even so that an entire drive transmits its kinetic energy to each underfloor conveyor belt unit U-1, U-2, U-3 and each rocker.
  • a controller controls the or each drive and is capable of causing each underfloor conveyor unit U-1, U-2, U-3 and each conveyor unit F-1, F-2, F-3 to carry mailpieces, respectively transported by a speed specified by the controller.
  • the controller is operated with the measured values from the level sensors FS-1, FS-2, FS-2 and with the messages from the photoelectric sensors Li-1, Li-2, Li-3 supplies and processes these measured values and messages to generate positioning commands to the drives, which are then transmitted to the drives.
  • the separator V is able to achieve a certain throughput of mail per hour.
  • the highest throughput achieved the separator V when a uniform stream of mail reaches the separator V.
  • the throughput of mailings by the feed module Z-M usually varies greatly over time and in an unpredictable manner, depending on the volume of mail. There may be gaps between mailings in the transport channel.
  • the buffer modules P-1, P-2, P-3 cause that nevertheless a uniform stream of mail reaches the separator V.
  • the underfloor conveyor belt unit U-Z of the feed module Z-M moves at a speed v (0) and therefore transports mailpieces at the speed v (0).
  • the underfloor conveyor belt unit U-1 of the first buffer module P-1 moves at a speed v (1) and transports mailpieces at the speed v (1).
  • the underfloor conveyor unit U-2 of the second buffer module P-2 moves at a speed v (2) and transports mail items at the speed v (2).
  • the underfloor conveyor unit U-3 of the third buffer module P-3 moves at a speed v (3) and transports mail items at the speed v (3).
  • All four speeds v (0), v (1), v (2) and v (3) are set by the controller to one value each. This value can vary over time.
  • a predetermined standard speed is set in each case. This standard speed remains constant until, due to a high level in the subsequent module or the processing device V, the speed is temporarily reduced.
  • v (0)> v (1)> v (2)> v (3) ie a negative speed jump is achieved from module to module.
  • This has the effect that, at each transition from one module to a subsequent module, mailpieces-seen in the transport direction T--are pushed together so that the mailpieces completely or at least partially overlap.
  • the stream of mailpieces is compressed, gaps between mailpieces are closed, and the processing capacity of the separator V is better utilized. Of course, this happens only until the stream of incoming mailings fully exploits the processing capacity of the singler.
  • each buffer module P-1, P-2, P-3 should not exceed a predetermined level limit.
  • This barrier may be the same for all buffer modules or vary from buffer module to buffer module.
  • This upper level barrier limits the predetermined range in the sense of the claims, in which the level should remain through the control.
  • a buffer module is filled with mail by a preceding module in the transport direction T (previous buffer module or feed module Z-M) and in turn dispenses mailpieces to a subsequent module (subsequent buffer module or separator).
  • the controller can cause the endless conveyor belt F-1, F-2, F-3 on the rocker S-1, S-2, S-3 faster or slower than the underfloor conveyor unit U-1, U-2, U-3 U-1, U-2, U-3 is rotated.
  • the dynamic pressure which the mail item generates in a buffer module towards the front of the separator V can be increased or decreased.
  • the level can be increased or decreased. It is even possible to control the endless conveyor belt F-1, F-2, F-3 on a rocker S-1, S-2, S-3 so that the conveyor belt runs backwards, creating a back pressure on subsequent mail items becomes.
  • the feed roller VR can be rotated in the opposite direction and generate the back pressure.
  • all three buffer modules P-1, P-2, P-3 each have an underfloor conveyor belt unit U-1, U-2, U-3.
  • at least one buffer module is additionally designed as a shaker module, preferably the last buffer module P-3 seen in the transport direction.
  • Fig. 4 shows this shaking module RM from the side.
  • Fig. 5 shows the jogging module of Fig. 4 from above.
  • a rack of the Haitm module R-M several horizontal waves W-1, W-2, ... are inserted, which extend between the two side walls of the Rüttel module.
  • On each shaft W-1, W-2, ... are each mounted a vibrating roller and a transfer roller.
  • On each of the shafts one agitating roller and one transferring roller are mounted, and on the other shafts, a transporting roller and a transferring roller, respectively.
  • the mail items are transported across the vibrating rollers and transport rollers.
  • the vibrating module R-M has several guide rollers FR-1, FR-2, ... and a drive roller ARo, which are also mounted on horizontal shafts.
  • a transport roller R-1 is mounted, on the shaft W-2 a vibrating roller R-2, on the shaft W-3 a transport roller R-3, on the shaft W-2 a vibrating roller R-3, on the shaft W-4 a vibrating roller R-4 and on the shaft W-5 a transport roller R-5.
  • the transfer rollers Ü-1, Ü-2, ... are mounted on the shafts W-1, W-2, ... the transfer rollers Ü-1, Ü-2, ... are mounted.
  • a transfer means in the form of a continuous elastic conveyor belt FR is tightly guided around the drive roller AR, the transfer rollers Ü-1, Ü-2, ... and the guide rollers FR-1, FR-2, ... around.
  • a drive motor AMo turns the drive roller ARo. This rotation causes the transfer rollers Ü-1, Ü-2, ... and the shafts W-1, W-2, ... on which these transfer rollers Ü-1, Ü-2, ... are mounted are rotated.
  • the transmission means may also take the form of a chain or a round belt or of timing belts or other suitable forms.
  • Each R-2, R-4 vibrating roller is in contact with a piece of mail that is transported across the R-2, R-4 vibrating roller.
  • the vibrating roller R-2, R-4 is designed such that the distance of the area in contact with the object of the vibrating roller R-2, R-4 from the shaft W-2, W-4, to which the vibrating roller R- 2, R-4 is mounted, varies while the vibrating roller R-2, R-4 performs a full turn. This has the effect that at the time of each rotation of the roll, a mail item standing on the roll is raised and lowered at least once, with a corresponding configuration of the roll and length of the mail item also several times.
  • each Ganttelrolle R-2, R-4 has a cross-sectional area in the form of an n-corner, z. A regular hexagon or octagon.
  • each shaker roller R-2, R-4 is mounted eccentrically on the respective shaft W-2, W-4 so that the rotation axis is not the center of the cross-sectional area and the shaker roller "eggs". It is possible to combine n-square and eccentric vibrating rollers in a vibrating module. It is also possible that an n-squared Garttelrolle is additionally mounted eccentric.
  • the croquttelrollen R-2, R-4 cause the mail pieces during transport on the singler stomp, that are moved up and down. This up and down movement depends on the speed of rotation of the vibrating rollers R-2, R-4 and on the transport speed with which the mailpieces over the vibrating rollers R-2, R-4 are transported away from. If the vibrating rollers R-2, R-4 are turned fast enough, the mail will be shaken. This causes the mailpieces to be loosened. The risk is reduced by the separator withdrawing several mail items at once (double deduction). In addition, the mail items are aligned at their lower edges. In addition, if necessary dirt particles are removed, which attach to the mail.
  • the transport rollers T-1, T-3, T-5 each comprise a cylinder which is mounted centrally on the shaft W-1, W-3, W-5.
  • openings are recessed.
  • a blower Gb generates blown air, which is blown through the openings vertically upwards and from below against the mailpieces.
  • the openings are the only exit openings of a chamber into which the fan blows air.
  • the openings can be designed as nozzles.
  • Fig. 4 and Fig. 5 is located between the sliding plates GB-1 and GB-2 and between the sliding plates GB-4 and GB-5 each have an opening through which air is blown from below against the mailpieces.
  • the outer walls of the chamber Ka are in Fig. 4 shown schematically. In Fig. 4 is indicated by arrows, where air enters the chamber Ka and where this air exits the chamber Ka again.
  • the blower Gb blows a constant amount of air or other gas per unit of time into this chamber Ka, and through the outlet openings exits this constant amount per unit time.
  • the amount of gas that the blower Gb conducts per unit time to the chamber Ka regulated.
  • the controller controls the blower Gb accordingly. For example, this amount is controlled so that the amount varies in proportion to the transport speed with which the shaker module transports mail. The greater this transport speed, the greater the amount.
  • the shaker module R-M has a movable sidewall region
  • the amount is controlled proportionally by the varying width of the shaker module R-M.
  • a abutment wall From Scraper on the stop wall A AMo Drive motor of the vibrating module R-M ARo Drive roller of the vibrating module R-M D VR Rotary axis about which the feed roller VR is rotatably mounted F-1 Endless conveyor belt of the conveyor unit of the rocker S-1 F-2 Endless conveyor belt of the conveyor unit of the rocker S-2 F-3 Endless conveyor belt of the conveyor unit of the rocker S-3 FR-1, FR-2, ...

Landscapes

  • Sorting Of Articles (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Claims (12)

  1. Installation de transport d'objets à un dispositif ( V ) de traitement,
    dans laquelle l'installation comprend
    - un dispositif ( Z-M ) d'amenée,
    - un dispositif tampon et
    - un régleur,
    le dispositif tampon comprend au moins deux modules ( P-1, P-2, P-3 ) tampon,
    le dispositif ( Z-M ) d'amenée est tel qu'il transporte des objets au dispositif tampon, et
    le dispositif tampon est tel qu'il transporte des objets au dispositif ( V ) de traitement,
    les au moins deux modules ( P-1, P-2, P-3 ) tampon du dispositif tampon sont montés en série,
    le dispositif tampon est tel qu'il transporte des objets de manière à ce que les objets transportés du dispositif ( Z-M ) d'amenée au dispositif ( Z-M ) tampon passe successivement dans les modules ( P-1, P-2, P-3 ) tampon du dispositif tampon,
    chaque module ( P-1, P-2, P-3 ) tampon a respectivement un capteur ( FS-1, FS-2, FS-3 ) de l'état de remplissage, dans laquelle
    l'installation est telle que l'état de remplissage présent de chaque module tampon reste dans une plage d'état de remplissage prescrite,
    caractérisée en ce que
    chaque capteur ( FS-1, FS-2, FS-3 ) d'état de remplissage d'un module ( P-1, P-2, P-3 ) tampon est conformé pour mesurer une valeur de l'état de remplissage présent du module ( P-1, P-2, P-3 ) tampon,
    le régleur est tel qu'il règle l'amenée d'objets dans chaque module ( P-1, P-2, P-3 ) tampon en utilisant la valeur de l'état de remplissage qui a été mesurée,
    de manière à ce que l'état de remplissage présent du module ( P-1, P-2, P-3 ) tampon reste dans la plage prescrite d'état de remplissage,
    l'installation étant telle que
    le module ( P-1, P-2 ) tampon précédent transporte des objets au moins aussi longtemps à une vitesse plus grande que le module ( P-2, P-3 ) tampon suivant,
    que la valeur de l'état de remplissage qui a été mesurée dans le module ( P-2, P-3 ) tampon suivant reste inférieure à la limite d'intervention sur l'état de remplissage, et
    le régleur est conformé
    pour réduire de temps en temps la vitesse de transport d'un module ( P-1, P-2 ) tampon précédent,
    si la valeur de l'état de remplissage qui a été mesurée dans un module ( P-2, P-3 ) tampon suivant atteint une limite prescrite d'intervention sur l'état de remplissage.
  2. Installation suivant la revendication 1, dans laquelle
    au moins un module ( P-1, P-2, P-3 ) tampon a un capteur ( Li-1, Li-2, Li-3 ) d'objets,
    le capteur ( i-1, Li-2, Li-3 ) d'objets est conformé pour produire un message d'arrivée,
    dès qu'un objet à transporter au dispositif de traitement atteint le module ( P-1, P-2, P-3 ) tampon, et
    le régleur est conformé pour,
    lorsque
    - la valeur de l'état de remplissage de ce module ( P-1, P-2, P-3 ) tampon a atteint la limite supérieure de la plage de remplissage et
    - le message d'arrivée à été produit,
    arrêter l'amenée d'objets dans ce module ( P-1, P-2, P-3 ) tampon.
  3. Installation suivant la revendication 1 ou la revendication 2,
    caractérisée en ce que
    au moins un module ( P-1, P-2, P-3 ) tampon est conformé en canal de transport en forme de U,
    le fond et/ou une paroi latérale du canal de transport a un dispositif ( F-1, F-2, F-3, VE ) convoyeur et
    ce dispositif ( F-1, F-2, F-3 ) convoyeur est conformé
    pour transporter des objets au dispositif ( V ) de traitement.
  4. Installation suivant la revendication 3,
    caractérisée en ce que
    le dispositif ( VE ) convoyeur d'au moins un module ( P-3 ) tampon comprend
    - un bras ( V-Aus ) mobile et
    - un galet ( VR ) d'avance entraîné
    et
    le galet ( VR ) d'avance est conformé,
    pour transporter des objets au dispositif ( V ) de traitement.
  5. Installation suivant l'une des revendications 1 à 4,
    caractérisée en ce que
    au moins un module ( P-1, P-2, P-3 ) tampon a une paroi latérale ayant une partie ( SB-1, SB-2, SB-3 ) mobile de paroi latérale,
    ce module ( P-1, P-2, P-3 ) tampon est conformé de manière à ce que
    - la largeur du module ( P-1, P-2, P-3 ) tampon puisse être modifiée, dans laquelle
    - l'amenée d'un objet dans le module ( P-1, P-2, P-3 ) tampon agrandit la largeur du module tampon et
    - l'évacuation d'un objet du module ( P-1, P-2, P-3 ) tampon rapetisse la largeur de ce module ( P-1, P-2, P-3 ) tampon.
  6. Installation suivant la revendication 5,
    caractérisée en ce que
    le capteur ( FS-1, FS-2, FS-3 ) de l'état de remplissage pour ce module ( P-1, P-2, P-3 ) tampon est conformé,
    pour mesurer comme valeur de l'état de remplissage la largeur variable dans le temps du module ( P-1, P-2, P-3 ) tampon.
  7. Installation suivant la revendication 5 ou la revendication 6,
    caractérisée en ce que
    le module ( P-1, P-2, P-3 ) tampon a un composant ( RK-1, RK-2, RK-3 ) de rappel et
    le module ( P-1, P-2, P-3 ) tampon est conformé, de manière
    - à ce que l'amenée d'un objet dans le module ( P-1, P-2, P-3 ) tampon fasse que sa largeur s'agrandisse par déplacement de la partie ( SB-1, SB-2, SB-3 ) mobile de paroi latérale allant contre la force du composant ( RK-1, RK-2, RK-3 ) de rappel et
    - l'évacuation d'un objet du module ( P-1, P-2, P-3 ) tampon fasse que le composant ( RK-1, RK-2, RK-3 ) de rappel rapetisse, par déplacement de la partie ( SB-1, SB-2, SB-3 ) mobile de paroi latérale, la largeur du module ( P-1, P-2, P-3 ) tampon.
  8. Installation suivant l'une des revendications 5 à 7,
    caractérisée en ce que
    la partie ( SB-1, SB-2, SB-3 ) mobile de paroi latérale a un dispositif ( F-1, F-2, F-3 ) convoyeur et
    ce dispositif ( F-1, F-2, F-3 ) convoyeur est conformé
    pour transporter des objets au dispositif ( V ) de traitement.
  9. Installation suivant l'une des revendications 1 à 8,
    caractérisée en ce que
    au moins un module ( P-3 ) tampon a un fond ayant un dispositif ( R-2, R-4 ) de secouage et
    le dispositif ( R-2, R-4 ) de secouage est conformé
    pour secouer un objet qui se trouve dans le module ( P-3 ) tampon.
  10. Installation suivant la revendication 9,
    caractérisée en ce que
    le dispositif de secouage comprend au moins un rouleau ( R-2, R-4 ) de secouage monté tournant,
    le rouleau ( R-2 , R-4 ) de secouage est monté de manière à ce qu'un objet transporté par-dessus le fond du dispositif de secouage touche de temps en temps le rouleau ( R-2, R-4 ) de secouage, et
    le rouleau ( R-2, R-4 ) de secouage est conformé
    pour faire varier la distance de la partie touchant l'objet du rouleau ( R-2, R-4 ) de secouage à l'axe ( W-2, W-4 ) de rotation du rouleau ( R-2, R-4 ) de secouage pendant que le rouleau ( R-2, R-4 ) de secouage décrit une rotation complète,
    de sorte que la rotation du rouleau ( R-2, R-4 ) de secouage provoque un soulèvement et un abaissement de l'objet transporté.
  11. Installation suivant la revendication 9 ou la revendication 10,
    caractérisée en ce que
    le dispositif de secouage comporte une soufflante ( Gb ) et la soufflante ( Gb ) est conformée pour insuffler un gaz par en dessous sur un objet,
    qui est transporté par-dessus le dispositif de secouage.
  12. Procédé de transport d'objets à un dispositif de traitement en utilisant un dispositif tampon et au moins deux modules ( P-1, P-2, P-3 ) tampon,
    le procédé comprenant les stades dans lesquels
    - on transporte les objets au dispositif tampon et
    - le dispositif tampon transporte des objets au dispositif de traitement,
    dans lequel
    les au moins deux modules ( P-1, P-2, P-3 ) tampon sont montés en série,
    le objets transportés du dispositif ( Z-M ) d'amenée au dispositif tampon passent successivement dans les modules ( P-1, P-2, P-3 ) tampon du dispositif tampon et
    l'amenée des objets dans chaque module ( P-1, P-2 ) tampon s'effectue,
    de manière à ce que l'état de remplissage présent reste dans une plage prescrite d'état de remplissage, caractérisé en ce que
    on mesure, pour chaque module ( P-1, P-2, P-3 ) tampon respectivement, une valeur de l'état de remplissage présent du module tampon,
    on règle l'amenée d'objets dans chaque module ( P-1, P-2, P-3 ) tampon en utilisant la valeur de l'état de remplissage qui a été mesurée,
    de manière à ce que l'état de remplissage présent du module ( P-1, P-2, P-3 ) tampon reste dans la plage prescrite d'état de remplissage,
    on contrôle si la valeur de l'état de remplissage qui a été mesurée dans un module ( P-2, P-3 ) tampon suivant a ou non atteint une limite prescrite d'intervention sur l'état de remplissage, et
    le module ( P-1, P-2 ) tampon précédent transporte des objets au moins aussi longtemps à une vitesse plus grande que le deuxième module ( P-2, P-3 ) tampon suivant,
    que la valeur de l'état de remplissage qui est mesurée dans le module ( P-2, P-3 ) tampon suivant reste inférieure à la limite d'intervention sur l'état de remplissage, et
    on réduit de temps en temps la vitesse de transport d'un module ( P-1, P-2 ) tampon précédent,
    si la valeur de l'état de remplissage qui est mesurée dans le module ( P-2, P-3 ) tampon suivant a atteint ou a dépassé la limite d'intervention sur l'état de remplissage.
EP20100163227 2009-06-08 2010-05-19 Procédé et dispositif de transport régulé d'objets Not-in-force EP2260950B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009024183 2009-06-08
DE102009031161A DE102009031161A1 (de) 2009-06-30 2009-06-30 Vorrichtung und Verfahren zum geregelten Transport von Gegenständen

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Publication Number Publication Date
EP2260950A1 EP2260950A1 (fr) 2010-12-15
EP2260950B1 true EP2260950B1 (fr) 2012-12-26

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Application Number Title Priority Date Filing Date
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CN111266295A (zh) * 2020-03-04 2020-06-12 重庆交通职业学院 一种物流用分选设备及其分拣系统

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