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US20080185768A1 - Device for aligning flat objects - Google Patents

Device for aligning flat objects Download PDF

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Publication number
US20080185768A1
US20080185768A1 US12/070,023 US7002308A US2008185768A1 US 20080185768 A1 US20080185768 A1 US 20080185768A1 US 7002308 A US7002308 A US 7002308A US 2008185768 A1 US2008185768 A1 US 2008185768A1
Authority
US
United States
Prior art keywords
boundary
boundary elements
aligning
edge
backwards
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.)
Abandoned
Application number
US12/070,023
Other languages
English (en)
Inventor
Peter Enenkel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENENKEL, PETER
Publication of US20080185768A1 publication Critical patent/US20080185768A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • B07C1/06—Orientating; Aligning ; Aligning to one 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
    • B65H31/00—Pile receivers
    • B65H31/34—Apparatus for squaring-up piled articles
    • B65H31/40—Separate receivers, troughs, and like apparatus for knocking-up completed piles
    • 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 a device and a method for aligning several flat objects, each of which extends in an object plane, and which together form a stack.
  • the objects are, for example, letters or other flat postal items that after alignment are to be processed by a sorting system.
  • US 2005/0082475 A1 discloses an alignment device, wherein flat object such as sheets of paper are transported on a belt conveyor. For this purpose, the objects are placed vertically on the belt conveyor. Two boundary elements vibrate vertical to the direction of transport of the objects and vertical to the plane of the flat objects and thus align the objects that are located between them.
  • a rotating shaft is rigidly connected to several cams. Each boundary element is rigidly connected to a cam follower that lies against a cam. Thus, rotation of the shaft causes the boundary elements to rotate backwards and forwards.
  • the objects are separated into part stacks.
  • a part stack is transported to a boundary wall and is there aligned by means of further boundary elements that align it with one edge against the boundary wall.
  • An aligning device described in US 2001/022261 A1 is, for example, used to align pieces of wood.
  • the device described therein includes a belt conveyor and an adjacent U-shaped aligning device.
  • the aligning device has two vertical side pieces and a saw-tooth, jagged horizontal base.
  • the aligning device slopes in the direction of the conveying device and vibrates vertical to the direction of conveyance. The objects are thus aligned.
  • a device is described in US 2003/0062670 that aligns rectangular sheets of paper at two edges.
  • the sheets of paper are fed in succession to a supporting device, which has a base and two boundary walls.
  • the corner at which the base and both walls meet is the lowest point of the supporting device and the base slopes to this corner.
  • a motor sets the supporting device in vibration so that each paper sheet slides to a position in which two edges of the sheet lie against both walls.
  • a letter input station with a vibrator is known from EP 1676796 A1.
  • a stack of flat postal items stands vertically on a belt conveyor and is fed by the belt conveyor to a separating device.
  • the conveying device is vertical to those parallel planes in which the flat postal items extend.
  • the postal items lie on a flat plate.
  • a vibrator vibrates the belt conveyor while the belt conveyor conveys the stack.
  • the objects to be aligned are, e.g., letters that are to be processed by a sorting system.
  • the feeder of this sorting system has to reliably separate the letters and transport them in succession through the system for further processing. So that it can reliably perform this task, the letters must be aligned before separation and in fact on two edges that stand vertical to each other. This aligning should be carried out quickly and even when objects with different dimensions are to be aligned.
  • the object of the invention is to provide an aligning device, and an aligning method that quickly align a stack of flat parallel objects on two edges even if the objects have different dimensions.
  • the inventive device is capable of aligning several flat objects. These objects each extend in one object plane and together form a stack.
  • the device includes a supporting device for supporting the objects, two boundary elements, a drive for the backwards and forwards movements of the boundary elements, and a motor.
  • the supporting device has two flat aligning surfaces for aligning the objects. Both these aligning surfaces lie in two planes that abut each other at a straight edge. Both aligning surfaces slope towards the edge.
  • the motor is designed so that it is capable of vibrating the two aligning surfaces.
  • the at least two boundary elements can be swung into an engaging position. In this engaging position, the at least two boundary elements hold the stack with the objects when the stack is located on the supporting device and between the boundary elements.
  • the drive is connected to the boundary elements in such a way that it can move the boundary elements backwards and forwards parallel to the edge when they are in the engaging position.
  • the inventive device effects an alignment in two different ways.
  • the force of gravity forces the objects to slide downwards along both downwards sloping aligning surfaces and thus become aligned at two edges.
  • the boundary elements vibrate the flat objects that stand vertically on the edge between the aligning surfaces, backwards and forwards, i.e., in two directions. These varied movements cause a fast alignment.
  • the objects are vibrated backwards and forwards particularly well if at least three, preferably five, boundary elements are provided. These divide the stack of flat objects into at least two, preferably four, part stacks and vibrate these part stacks independently of each other.
  • the boundary elements preferably sit on a holding device, e.g., a shaft.
  • the drive moves the holding device backwards and forwards and the boundary elements are thus moved backwards and forwards.
  • the boundary elements are moveably arranged on the holding device in such a way that they can be moved backwards and forwards parallel to the edge.
  • the drive is connected via a transmission device, e.g. a cable or chain, to the boundary elements.
  • FIG. 1 shows the device viewed from the front with the direction of view being vertical to the edge between the two aligning surfaces
  • FIG. 2 shows the device viewed from the side, with the direction of view running parallel to the edge between both aligning surfaces and the boundary elements swung out from the engaging position;
  • FIG. 3 shows the device in the direction of view from FIG. 2 with the boundary elements being swung into the engaging position.
  • the device is used to align a stack of letters and/or other flat rectangular postal items at two edges K 1 , K 2 .
  • These postal items function as the objects to be aligned. Further processing of the postal items Se 1 , Se 2 requires that they have been aligned at both edges K 1 , K 2 .
  • FIG. 1 shows an aligning device according to the exemplary embodiment viewed from the front
  • FIGS. 2 and 3 show a view from the side.
  • the aligning device includes a vibrating table.
  • This vibrating table has two aligning surfaces 1 , 2 that abut each other at an edge K and are rigidly connected to each other.
  • the aligning surfaces 1 , 2 extend flat in two planes. Both aligning surfaces 1 , 2 slope steeply towards the edge K and stand vertically on each other.
  • the postal items Se 1 , Se 2 to be aligned have two edges K 1 , K 2 that are also vertical relative to each other.
  • the direction of view in FIG. 1 is vertical to the edge K between both aligning surfaces 1 , 2 .
  • the direction of view of FIG. 2 and FIG. 3 runs parallel to this edge K.
  • a straight slot extends between the aligning surfaces.
  • the aligning surfaces are thus not rigidly connected to each other.
  • Each aligning surface lies in a plane. Both these planes abut in an edge.
  • the edge lies in the slot.
  • the effect of the alternative arrangement is that particles of dirt, mainly during vibration, slide downwards on the aligning surfaces and fall down through the slot.
  • the aligning surfaces 1 , 2 are made from a smooth, hard-wearing material, such as metal or hard plastic.
  • the vibrating table has a frame with four legs 4 . 1 , 4 . 2 , 4 . 3 , 4 . 4 which provides it with a stable mounting.
  • a motor 3 is connected to the frame and is designed to set both aligning surfaces 1 , 2 in vibration.
  • the motor 3 is firmly connected to the frame and is located under the aligning surfaces 1 , 2 . It can be switched on and off.
  • the motor vibrates both the aligning surfaces 1 , 2 , for example in a manner described in US 2003/0062670 or EP 1676796.
  • Each of the postal items extends in an object plane that is vertical to the drawing plane of FIG. 1 and lies in the drawing plane of FIG. 2 and FIG. 3 .
  • the stack with the postal items Se 1 , Se 2 is placed for aligning on both aligning surfaces 1 , 2 so that the object planes in which the postal items Se 1 , Se 2 extend are almost vertical on both aligning surfaces 1 , 2 .
  • the postal items Se 1 , Se 2 thus stand almost vertically on both aligning surfaces 1 , 2 .
  • the force of gravity causes the postal items Se 1 , Se 2 to slide downwards on the aligning surfaces 1 , 2 until they are aligned against the edges K 1 , K 2 .
  • the aligning device has at least three boundary elements 5 . 1 , 5 . 2 , etc. that are attached to a holding device 6 in such a way that they can be swiveled independently of each other relative to the holding device 6 .
  • the holding device 6 is connected to the frame and therefore stands on the four legs 4 . 1 , 4 . 2 , 4 . 3 , 4 . 4 .
  • Each boundary element 5 . 1 , 5 . 2 etc. can be swiveled backwards and forwards between a position in which it engages in the stack of postal items Se 1 , Se 2 that lies on both aligning surfaces and in a position in which the stack can be moved past on the boundary element.
  • each boundary element 5 . 1 , 5 . 2 etc. are swiveled out of the engaging position.
  • they are swiveled into the engaging position.
  • a stop 7 limits the possible rotation of a boundary element in each case.
  • each boundary element can rotate through 90 degrees.
  • boundary elements 5 . 1 , 5 . 5 are the boundary elements 5 . 1 , 5 . 5 .
  • Each further boundary element 5 . 2 , 5 . 3 , 5 . 4 divides the stack into two part stacks in each case.
  • the boundary elements 5 . 1 , 5 . 2 etc. are, for example, in the form of wide paddles with the handle of each paddle being connected to the holding device 6 .
  • the device has five boundary elements 5 . 1 ,- 5 . 5 etc. This has proved to be a more satisfactory compromise between the requirements for a fast alignment of the postal items and a simple arrangement of the device.
  • the postal items Se 1 , Se 2 are vibrated through in two different ways. On one hand by means of the vibrations which are imparted to the supporting surfaces 1 , 2 and transmitted to the postal items Se 1 , Se 2 , and, on the other hand, by the backwards and forwards movements of the boundary elements 5 . 1 , 5 . 2 etc. that cause the postal items Se 1 , Se 2 to tilt backwards and forwards.
  • the boundary elements 5 . 1 , 5 . 2 etc. are connected to the holding device 6 in such a way that each boundary element can be swiveled into the engaging position independently of the other boundary elements.
  • all the boundary elements 5 . 1 , 5 . 2 etc. are connected to each other in such a way that a movement of a boundary element from the engaging position carries the other boundary elements with it, i.e. causes each of the other boundary elements to be swiveled into the non-engaging position.
  • the holding device 6 is designed as a shaft that runs parallel to the edge K between the planes of the aligning surfaces 1 , 2 .
  • Each boundary element 5 . 1 , 5 . 2 etc. is attached to this shaft in such a way that it can be rotated backwards and forwards between the two positions.
  • Each boundary element can be rotated to the engaging position independently of the other boundary elements.
  • the boundary elements are connected to the holding device 6 in such a way that they can be pushed backwards and forwards between both positions, preferably in a linear movement.
  • Mixed forms are also possible where each boundary element 5 . 1 , 5 . 2 etc. can be moved backwards and forwards between both positions by a superpositioning of a rotating and linear movement.
  • An operator places the stack of postal items Se 1 , Se 2 to be aligned on the aligning surfaces 1 , 2 and first moves one of the two outer boundary elements 5 . 1 or 5 . 5 to a position in which this outer boundary element forms the boundary of the stack, viewed in the direction of the edge K.
  • the stack is thus held by the first swiveled boundary element.
  • this is the boundary element 5 . 1 , for example.
  • He then moves the other outer boundary element to a position in which it also forms the boundary of the stack, e.g. the boundary element 5 . 2 .
  • the stack is then located between the two outer boundary elements 5 . 1 , 5 . 5 and both outer boundary elements 5 . 1 , 5 . 5 are in the engaging position.
  • the operator then moves at least one further boundary element 5 . 2 , 5 . 3 , 5 . 4 to a position in which it engages in the stack and divides the stack into two part stacks.
  • the further boundary element 5 . 2 , 5 . 3 , 5 . 4 is then also in the engaging position.
  • Postal items Se 1 , Se 2 lie loosely between the boundary elements 5 . 1 , 5 . 2 etc. in such a way that they can tilt to a certain extent and are thus not tightly held.
  • the device has a drive 9 . 1 , 9 . 2 designed to move the boundary elements backwards and forwards relative to the holding device, i.e., in two opposite directions parallel to the edge K between the aligning surfaces 1 , 2 .
  • a transmission device 8 transmits movements from the drive 9 . 1 , 9 . 2 to the boundary elements 5 . 1 , 5 . 2 etc. If the holding device 6 is designed as a shaft, the drive 9 . 1 , 9 . 2 moves the boundary elements 5 . 1 , 5 . 2 etc. backwards and forwards parallel to the shaft.
  • the transmission device 8 is a cable that drive 9 . 1 and drive 9 . 2 in turn pull towards themselves in the direction of the edge K.
  • the cable is preferably sufficiently long to enable at least one boundary element to be swiveled into the engaging position and at least one other boundary element to be swiveled out of the engaging position at the same time.
  • the transmission device 8 is designed so that the distance between at least two adjacent guide elements varies during the backwards and forwards movement. This has the effect of varying the slope angles of the postal packages Se 1 , Se 2 relative to the vertical, thus further accelerating the aligning.
  • the transmission device 8 for example includes a cable or a chain or other flexible oblong transmission element.
  • This transmission element 8 connects all the boundary elements to each other and to the drive.
  • the transmission element 8 then tightens when the drive 9 . 1 , 9 . 2 moves the boundary elements 5 . 1 , 5 . 2 etc. in one direction, which leads to an increased distance between the boundary elements 5 . 1 , 5 . 2 etc.
  • the inertia of the masses of the postal items and the boundary elements 5 . 1 , 5 . 2 etc. causes the distance to be reduced.
  • the arrangement with at least three boundary elements means that the backwards and forwards movement is transmitted to the at least two part-stacks that occur and the aligning is carried out even faster.
  • the alignment of the postal items begins.
  • the motor 3 sets both aligning surfaces 1 , 2 in vibration, after the operator has switched it on.
  • the drive 9 . 1 , 9 . 2 moves the boundary elements 5 . 1 , 5 . 2 etc. backwards and forwards parallel to the edge.
  • the backwards and forwards movement means that the postal items during the movement have different slope angles with respect to the vertical. In conjunction with the vibration, this further reduces the friction between the postal items and the force of gravity then aligns the postal items faster against the aligning surfaces 1 , 2 .
  • the postal items Se 1 , Se 2 are even tilted backwards and forwards so that they pass through a vertical position during tilting, i.e. are inclined to one side and then to the other.
  • the frequency with which the drive 9 . 1 , 9 . 2 moves the boundary elements backwards and forwards can be varied. In this way the frequency can be matched to different postal items and environmental conditions, e.g., different ambient humidity, temperature, or different average dimensions of the postal items.
  • the operator switches off the motor 3 which generates the vibration, as well as the drive 9 . 1 , 9 .
  • the operator or a further drive, swivels the boundary elements 5 . 1 , 5 . 2 etc. to the non-engaging position.
  • the operator rotates a boundary element, preferably an outer boundary element 5 . 1 , 5 . 5 , to a non-engaging position. This causes all the other boundary elements to also be turned off.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
US12/070,023 2007-02-06 2008-02-14 Device for aligning flat objects Abandoned US20080185768A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007811.2 2007-02-06
DE102007007811A DE102007007811B3 (de) 2007-02-16 2007-02-16 Vorrichtung zum Ausrichten von flachen Gegenständen

Publications (1)

Publication Number Publication Date
US20080185768A1 true US20080185768A1 (en) 2008-08-07

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US12/070,023 Abandoned US20080185768A1 (en) 2007-02-06 2008-02-14 Device for aligning flat objects

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US (1) US20080185768A1 (de)
DE (1) DE102007007811B3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130193628A1 (en) * 2012-01-26 2013-08-01 Brother Kogyo Kabushiki Kaisha Recording medium post-processing apparatus, printer unit with the same, recording medium post-processing method, and non-transitory computer-readable medium storing recording medium post-processing instructions

Citations (11)

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Publication number Priority date Publication date Assignee Title
US3931880A (en) * 1974-05-13 1976-01-13 International Business Machines Corporation Document handling apparatus
US4789148A (en) * 1985-12-06 1988-12-06 Nec Corporation Aligning-and-feeding apparatus for flat articles
US5507480A (en) * 1993-09-27 1996-04-16 Compagnie Generale D'automatisme Cga-Hbs Flat object holding device and flat object unstacking device equipped with this holding device
US5947468A (en) * 1997-01-30 1999-09-07 Siemens Electrocom L.P. Method and apparatus for jogging and edging of mail and other flat articles
US6250625B1 (en) * 1999-12-16 2001-06-26 Pitney Bowes Inc. Method for supplying envelopes to an inserter system by way of multiple supply paths
US6315286B1 (en) * 1999-12-07 2001-11-13 Pitney Bowes Inc. Jogger system for a mixed mail cancellation feeder
US20020053768A1 (en) * 2000-02-07 2002-05-09 Lockheed Martin Corporation Presentation control for flat article singulation mechanism and sensors suitable for use therewith
US20030062670A1 (en) * 2000-02-20 2003-04-03 Kia Silverbrook Vibrating support tray for a page binder
US6629691B2 (en) * 2000-04-03 2003-10-07 Matsushita Electric Industrial Co., Ltd. Paper-leaves conveying apparatus
US20040051232A1 (en) * 2002-09-17 2004-03-18 Canon Denshi Kabushiki Kaisha Sheet aligning apparatus
US20050082475A1 (en) * 2003-10-15 2005-04-21 Doan Trung T. Methods for preparing samples for atom probe analysis

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2301357A1 (en) * 2000-03-20 2001-09-20 Crestbrook Forest Industries Limited Article alignment and singulating conveyors and conveyor system
US20050082745A1 (en) * 2003-06-05 2005-04-21 Williams Robert M. Inline stacker with non-interrupt gap generator and integrated drive control and jam response
DE102005003374A1 (de) * 2004-12-23 2006-07-06 Böwe Bell + Howell GmbH Briefeingabestation mit Rüttler

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931880A (en) * 1974-05-13 1976-01-13 International Business Machines Corporation Document handling apparatus
US4789148A (en) * 1985-12-06 1988-12-06 Nec Corporation Aligning-and-feeding apparatus for flat articles
US5507480A (en) * 1993-09-27 1996-04-16 Compagnie Generale D'automatisme Cga-Hbs Flat object holding device and flat object unstacking device equipped with this holding device
US5947468A (en) * 1997-01-30 1999-09-07 Siemens Electrocom L.P. Method and apparatus for jogging and edging of mail and other flat articles
US6315286B1 (en) * 1999-12-07 2001-11-13 Pitney Bowes Inc. Jogger system for a mixed mail cancellation feeder
US6250625B1 (en) * 1999-12-16 2001-06-26 Pitney Bowes Inc. Method for supplying envelopes to an inserter system by way of multiple supply paths
US20020053768A1 (en) * 2000-02-07 2002-05-09 Lockheed Martin Corporation Presentation control for flat article singulation mechanism and sensors suitable for use therewith
US20020153654A1 (en) * 2000-02-07 2002-10-24 Lockheed Martin Corporation Presentation control for flat article singulation mechanism and sensors suitable for use therewith
US20030062670A1 (en) * 2000-02-20 2003-04-03 Kia Silverbrook Vibrating support tray for a page binder
US6629691B2 (en) * 2000-04-03 2003-10-07 Matsushita Electric Industrial Co., Ltd. Paper-leaves conveying apparatus
US20040051232A1 (en) * 2002-09-17 2004-03-18 Canon Denshi Kabushiki Kaisha Sheet aligning apparatus
US20050082475A1 (en) * 2003-10-15 2005-04-21 Doan Trung T. Methods for preparing samples for atom probe analysis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130193628A1 (en) * 2012-01-26 2013-08-01 Brother Kogyo Kabushiki Kaisha Recording medium post-processing apparatus, printer unit with the same, recording medium post-processing method, and non-transitory computer-readable medium storing recording medium post-processing instructions
US9180701B2 (en) * 2012-01-26 2015-11-10 Brother Kogyo Kabushiki Kaisha Recording medium post-processing apparatus, printer unit with the same, recording medium post-processing method, and non-transitory computer-readable medium storing recording medium post-processing instructions
US9346293B2 (en) 2012-01-26 2016-05-24 Brother Kogyo Kabushiki Kaisha Recording medium post-processing apparatus, printer unit with the same, recording medium post-processing method, and non-transitory computer-readable medium storing recording medium post-processing instructions
US10183508B2 (en) 2012-01-26 2019-01-22 Brother Kogyo Kabushiki Kaisha Recording medium post-processing apparatus, printer unit with the same, recording medium post-processing method, and non-transitory computer-readable medium storing recording medium post- processing instructions

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AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ENENKEL, PETER;REEL/FRAME:020563/0243

Effective date: 20080211

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION