EP2006226A2 - Dispositif de traitement de feuilles - Google Patents

Dispositif de traitement de feuilles Download PDF

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Publication number
EP2006226A2
EP2006226A2 EP08004658A EP08004658A EP2006226A2 EP 2006226 A2 EP2006226 A2 EP 2006226A2 EP 08004658 A EP08004658 A EP 08004658A EP 08004658 A EP08004658 A EP 08004658A EP 2006226 A2 EP2006226 A2 EP 2006226A2
Authority
EP
European Patent Office
Prior art keywords
conveying
sheet
section
nip
posture control
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.)
Withdrawn
Application number
EP08004658A
Other languages
German (de)
English (en)
Other versions
EP2006226A3 (fr
Inventor
Yoshihiko Naruoka
Yukio Asari
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Publication of EP2006226A2 publication Critical patent/EP2006226A2/fr
Publication of EP2006226A3 publication Critical patent/EP2006226A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/023—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between a pair of belts forming a transport nip
    • 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • 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 present invention relates to a sheet processing device that controls the posture of sheets being conveyed at a high speed.
  • a device As a sheet processing device that controls the posture of sheets being conveyed, a device is conventionally known which corrects the skew of sheets conveyed while being nipped between belts (see, for example, Jpn. Pat. Appln. KOKAI Publication No. 2005-255406 ).
  • This device has a taper roller shaped like a truncated cone and which rotates in contact with a sheet being conveyed and a driven roller that rotates while nipping the sheet between the driven roller and the taper roller.
  • the device corrects the skew of the sheet by moving the driven roller in an axial direction to change a position where the driven roller is pressed against the taper roller to change a speed at which the sheet is fed through the nip between the two rollers.
  • the device conveys the sheet basically by using plural pairs of belts extending along a conveying direction on the opposite sides of a conveying path.
  • the sheet is restrained under a weak force.
  • the posture of the sheet is thus likely to be disturbed. That is, with this device, even though the above-described taper roller is used to correct the skew of the sheet, the posture of the sheet stands a good chance of being disturbed in an area in which the sheet is conveyed only by the belt pair.
  • An object of the present invention is to provide a sheet processing device that can accurately and reliably control the posture of sheets such that the sheets assumes a desired posture even when the sheets are conveyed at a relatively high speed.
  • a sheet processing device comprising conveying belts positioned opposite each other across a conveying path and each extending so as to travel in a conveying direction, a posture control section which receives, at a nip, a sheet conveyed via the conveying path and which rotates while nipping and restraining the sheet to variably control a conveying posture of the sheet while applying a conveying force to the sheet, a downstream conveying section located downstream of the posture control section in a conveying direction to receive, at a nip, the sheet conveyed from the posture control section via the conveying path, the downstream conveying section rotating while nipping and restraining the sheet to apply a conveying force to the sheet, wherein a distance between the nip of the posture control section and the nip of the downstream conveying section is designed to be longer than a shortest one of sheets to be processed by the sheet processing device which has a shortest length along the conveying direction and to be equal to
  • the present invention avoids delivering the shortest sheet the conveying posture of which is being controlled such that the shortest sheet is nipped and restrained by the nip of the posture control section, to the nip of the downstream conveying section. This prevents the downstream conveying section from applying a conveying force to the shortest sheet the posture of which is being controlled. This in turn enables the posture of the shortest sheet to be accurately controlled and prevents an undesired stress from being applied to the shortest sheet. The shortest sheet is thus prevented from being stained, damaged, or jammed.
  • the conveying posture of the sheet can be reliably and accurately controlled. That is, provided that the posture control section exhibits fixed processing capabilities, before the longest sheet is delivered to the downstream conveying section, the control of the posture of the longest sheet has been completed. This prevents the downstream conveying section from applying an undesired force to the longest sheet. The conveying posture of the longest sheet can thus be reliably and accurately controlled.
  • the distance between the nips is designed to be equal to or shorter than the longest sheet, the distance between the nips is prevented from being longer than required.
  • the longest sheet the posture control of which has been completed can thus be subjected to delivery conveyance between the nips.
  • the distance between the nips over which the shortest sheet remains free can be minimized. This makes it possible to substantially prevent the possible disturbance of the posture of the sheet subjected to the posture control.
  • the sheet processing device further has an upstream conveying section located upstream of the posture control section in the conveying direction to receive, at a nip, the sheet conveyed via the conveying path, the upstream conveying section rotating while nipping and restraining the sheet to apply a conveying force to the sheet.
  • a distance between the nip of the upstream conveying section and the nip of the posture control section is designed to be longer than the longest sheet.
  • the sheet has been released from the nip of the upstream conveying section. This prevents the upstream conveying section from applying an undesired stress to the sheet the posture of which is being controlled. This in turn makes it possible to accurately control the posture of all the sheets and to prevent the sheet from being stained, damaged, or jammed.
  • FIG. 1 shows a perspective view of the appearance of a mail processing apparatus 100 in which a posture control device 1 (described below) according to the embodiment of the present invention is incorporated.
  • FIG. 2 shows a block diagram of the configuration of the mail processing apparatus 100.
  • the mail processing apparatus 100 has a loading and supplying section 2, a preprocess section 3, an excluding and accumulating section 4, a reading and recognizing section 5, a printing section 6, and a sorting and accumulating section 7.
  • the posture control device 1, functioning as a sheet processing device according to the present invention, is included in the preprocess section 3.
  • the mail processing apparatus 100 operates as described below.
  • an operator manually sets a plurality of mail items in the loading and supplying section 2, which carries one of the mail items onto a conveying path 10.
  • mail items P are conveyed in an upright position via the conveying path 10.
  • mail items determined by the preprocess section 3 to contain foreign matter or to have an irregular size are excluded and carried to the excluding and accumulating section 4.
  • the posture control device 1 is actuated to control the posture of all the mail items conveyed via the conveying path 10 such that the mail items assume a desired posture (in the present embodiment, the posture in which the mail item is not skewed or shifted).
  • those of the mail items carried onto the conveying path 10 which can be processed are passed through the reading and recognizing section 5 such that a barcode pre-applied to each of the mail items is read from the mail item.
  • sorting information such as a postal code and an address which are described on a surface of the mail item is recognized.
  • a barcode in a special format is printed on the mail item via the printing section 6.
  • the mail item is then subjected to a verify read operation.
  • a sorting destination is assigned to the mail item.
  • the mail item is then assigned to and accumulated in an appropriate stacker in the sorting and accumulating section 7.
  • the posture control device 1 controls the conveying posture of the mail item P such that the mail item P stands straight immediately after the mail item P is carried onto the conveying path 10. This enables the reading and recognizing section 5 to reliably read the barcode and the sorting information. The rate of recognition of the mail item P can thus be increased.
  • the conveying path 10 extends from the loading and supplying section 2 through the preprocess section 3, the reading and recognizing section 5, and the printing section 6 to the sorting and accumulating section 7.
  • the mail item conveyed along the conveying path 10, extending downstream of the posture control device 1, to the sorting and accumulating section 7 is basically subjected to delivery conveyance so as to be nipped and restrained by a nip of rollers or a nip of belts in order to prevent the conveying posture of the mail item from being varied.
  • the delivery conveyance means that the mail item conveyed while being nipped and restrained by the upstream nip is delivered to the downstream nip, the mail item is positively conveyed so as to be nipped and restrained by at least one of the nips in order to prevent the mail item from being free between the nips. That is, for the delivery conveyance, the nips may be basically arranged such that the distance between the adjacent nips is shorter than the shortest one Pmin (shortest sheet) of the mail items to be processed by the device which has the shortest length along the conveying direction.
  • Pmin shortest sheet
  • FIG. 3 shows a plan view of the posture control device 1 as viewed from above.
  • FIG. 4 shows a partly enlarged view of the configuration of an essential part of the posture control device 1.
  • a conveying belt 21 located frontward in the direction of arrow IV in FIG. 3 is removed so as to allow the structure to be easily seen.
  • the posture control device 1 has a posture detecting section 12 (detecting section), an upstream conveying section 14, a posture control section 16, and a downstream conveying section 18 arranged along the conveying path 10 in this order from an upstream side in a direction in which the mail item P (sheet) is conveyed (the direction of arrow T).
  • a base plate 11 (see Figure 4 ) is located below the conveying path 10.
  • a slot 11a (see FIG. 6 ) is formed in the base plate 11 near the posture control section 16 in order to avoid interfering with the mail item P.
  • Conveying belts 21 and 22 are provided on the respective sides of the conveying path 10, extending though the posture control device 1, and extends so as to be travelable along the conveying direction T.
  • the conveying belts 21 and 22 are wound around a plurality of pulleys 24a, 24b, 24c, 24d, 24e, and 24n and extend endlessly.
  • the conveying belts 21 and 22 are arranged opposite each other so as to sandwich the conveying path 10 between the belts 21 and 22.
  • the conveying path 10 is defined by the two conveying belts 21 and 22. That is, the mail item P fed into the posture control device 1 via the conveying path 10 is conveyed along the conveying path 10 while being nipped between the paired conveying belts 21 and 22 under a weak conveying force.
  • the two conveying belts 21 and 22 travel synchronously along the conveying direction T at the same speed by means of one motor 25. That is, the conveying belts 21 and 22 are wound around driving shafts 21a and 22a at an angle of at least 180 degrees; the driving shafts 21a and 22a transmit the driving force of the motor 25 to the conveying belts 21 and 22, respectively.
  • the driving force of the motor 25 is transmitted to the conveying belts 21 and 22 via an endless driving belt 27 placed around driving pulleys 21b and 22b attached to the driving shafts 21a and 22a, a motor pulley 25a for the motor 25, and a plurality of other pulleys 26.
  • nips are normally provided at a plurality of points along the conveying path 10; the nips can apply a conveying force to the mail item P while nipping and restraining the mail item P under a relatively strong clamp force.
  • the distance between the nips is designed to be slightly shorter than the shortest one Pmin (shortest sheet) of the mail items P to be processed by the device 1.
  • the term "nip" as used herein refers to a point where a relatively strong conveying force can be applied to the mail item P, such as a point where rollers are pressed against and contact with each other via the conveying path 10 or a point where the two conveying belts 21 and 22 are overlappingly wound around one pulley.
  • the following areas function as nips capable of nipping and restraining the mail item P to apply a sufficient conveying force to the mail item P: an area in which the two conveying belts 21 and 22 are overlappingly wound around the pulley 24a, located most upstream along the conveying direction and included in the pulleys around which the conveying belt 21, located forward in the direction of arrow IV in FIG.
  • this area is hereinafter referred to as the nip of the pulley 24a
  • an area in which the two conveying belts 21 and 22 are overlappingly wound around the pulley 24b, located downstream of and close to the pulley 24a and included in the pulleys around which the conveying belt 22, located inward in the direction of arrow IV, is wound this area is hereinafter referred to as the nip of the pulley 24b
  • an area in which the two conveying belts 21 and 22 are overlappingly wound around the downstream pulley 24c this area is hereinafter referred to as the nip of the pulley 24c
  • an area in which a driving roller 41 and a driven roller 42 of the posture control section 16 described below are pressed against and contacted with each other away from the conveying belts 21 and 22 via the conveying path 10
  • the posture detecting section 12 has a plurality of optical sensors 31 of a type in which a light receiving element receives light beams emitted by a light emitting element.
  • the plurality of optical sensors 31 are arranged such that the light beams cross the conveying path 10.
  • the optical sensors 31 are also juxtaposed in the vertical direction of FIG. 4 , which is orthogonal to the conveying direction T.
  • the plurality of optical sensors 31 are positioned and arranged such that the light beams from the optical sensors 31 pass through positions on the conveying path 10 arranged at equal intervals in the vertical direction.
  • the posture detecting section 12 of the type in which the optical sensors 31 are juxtaposed in the vertical direction is a well-known technique. Thus, the detailed description of a posture detecting method is omitted.
  • two rows of a plurality of optical sensors 32 may be staggeringly arranged to improve detecting resolution, for example, as shown in FIG. 5 .
  • the optical sensors 31 need to be arranged in an area in which the mail item P is nipped between the conveying belts 21 and 22.
  • the positions where the conveying belts 21 and 22 travel are bent as shown in FIG. 3 so that the conveying belts 21 and 22 travel outside the light emitting elements and light receiving elements of the optical sensors 31.
  • the posture control section 16 has paired rollers which receive, at the nip (the nip of the posture control section 16), the mail item P conveyed via the conveying path 10 and which rotate while nipping and restraining the mail item to apply a conveying force to the mail item P, that is, the driving roller 41 and the driven roller 42.
  • the driving roller 41 is divided into an upper driving roller 41U and a lower driving roller 41L which can be drivingly controlled independently.
  • the driven roller 42 is also divided into an upper driven roller 42U and a lower driven roller 42L.
  • the driven rollers 42U and 42L may be pinch-contacted with the driving rollers 41U and 41L, arranged opposite each other across the conveying path 10.
  • the rollers are each composed of two coaxially arranged rubber layers 421 and 422 having different hardnesses as shown in FIG. 6 .
  • a rotating shaft of the driving roller 41 and a rotating shaft of the driven roller 42 are fixedly arranged on the conveying path 10.
  • the upper and lower driving rollers 41U and 41L into which the driving roller is divided, are connected to a servo motor 44 via a coupling 43.
  • a servo motor 44 By independently rotating the upper driving roller 41U and the lower driving roller 41L at a desired speed, it is possible to adjust the skew or shift of the mail item P being conveyed along the conveying path 10, to a desired value.
  • the posture control method in the posture control section 16 is also a well-known technique. The detailed description of the posture control method is omitted.
  • the distance between the position detecting section 12 and the posture control section 16 is designed to be equal to the distance corresponding to the time required to calculate the posture of the mail item P, that is, the skew or shift amount of the mail item P and the time required to control the rotation speed of the rollers 41 and 42 of the posture control section 16 to a target value.
  • a timing sensor 15 located upstream of the posture control section 16 in the conveying direction is provided to acquire timing at which the mail item P, a target of posture control, reaches the posture control section 16.
  • the nips when the paired conveying belts 21 and 22 are used to convey the mail item P, the nips basically need to be arranged at a distance shorter than the shortest mail item Pmin so as not to disturb the conveying posture of the mail item P.
  • the distance between the nip (point A) of the pulley 24b of the posture detecting section 12 and the nip (point C) of the pulley 24c of the postured detecting section 12 is shorter than the shortest mail item Pmin.
  • the distance between point C and point Z (point D) is also shorter than the shortest mail item Pmin.
  • setting the distance between points A and C shorter than the shortest mail item Pmin makes it possible to prevent a possible variation in the conveying posture of the mail item P the posture of which is being detected.
  • Setting the distance between points C and D shorter than the shortest mail item Pmin makes it possible to maintain the conveying posture of the mail item P the posture of which has been detected. The mail item P kept in the detected position can then be fed into the posture control section 16.
  • the positions of the nips nipping and restraining the mail item P which positions precede and succeed the posture control section 16, that is, the positions of points Z and Y in FIG. 3 cannot be determined on the basis of the delivery conveyance of the mail item P as in the case of the other nips. That is, when the mail item P nipped and restrained by the nip between the driving roller 41 and driven roller 42 of the posture control section 16 is simultaneously nipped by the nip of the upstream conveying section 14 or the nip of the downstream conveying section 18, twisting stress may be applied to the mail item the posture of which is being controlled. This prevents the correct posture control and may cause the mail item P to be stained, damaged, or jammed.
  • the position of the nip (that is, a point F) of the downstream conveying section 18 is determined such that the distance between the nip (point E) of the posture control section 16 and the nip (point F or Y) of the downstream conveying section 18 is longer than the shortest mail item Pmin and equal to or shorter than the longest one Pmax (longest sheet) of the mail items P to be processed by the posture control device 1 which has the greatest length along the conveying direction.
  • This makes it possible to prevent the mail items P the posture control of which has not been completed from being disadvantageously nipped and restrained by the nip of the downstream conveying section 18.
  • the conveying posture can thus be accurately controlled and substantially prevented from being disturbed after the posture control.
  • the downstream conveying section 18 does not apply a conveying force to the shortest mail item Pmin the posture of which is being controlled. This prevents the possible situation in which an undesired stress is applied to the shortest mail item Pmin to disturb the conveying posture or to cause the mail item Pmin to be stained, damaged, or jammed.
  • the processing speed (throughput) of the posture control section 16 required for the posture control of one mail item P is set to the smallest value at which the posture control of the shortest mail item Pmin can be completed after the arrival of the conveying-direction leading end of the shortest mail item Pmin at the nip of the posture control section 16 and before the exit of the conveying-direction trailing end of the shortest mail item Pmin from the nip. That is, the processing speed is set such that the posture control is started when the conveying-direction leading end of the shortest mail item Pmin reaches the nip of the posture control section 16 and is completed when the conveying-direction trailing end of the shortest mail item Pmin leaves the nip.
  • a speed at which the mail item P is conveyed is set to a desired value, and the processing speed of the posture control section 16 is set to allow the posture of the shortest mail item Pmin to be controlled.
  • the posture control section 16 completes the posture control of the longest mail item Pmax in the relatively short time required for the posture control of the shortest mail item Pmin. That is, before the conveying-direction leading end of the longest mail item Pmax is delivered to the nip of the downstream conveying section 18, the posture control of the longest mail item Pmax by the posture control section 16 has been completed.
  • setting the distance between points E and F longer than the shortest mail item Pmin prevents at least the conveying-direction leading end of the mail item P the posture of which is being controlled such that the mail item P is nipped and restrained by the nip of the posture control section 16, from reaching the nip of the downstream conveying section 18 regardless of the length of the mail item P.
  • This prevents the downstream conveying section 18 applying an undesired stress to the mail item P the posture of which is being controlled.
  • the posture of the mail items of all the lengths can be accurately controlled, preventing possible staining, damaging, or jamming.
  • the distance between points E and F is desirably set slightly greater than the conveying-direction length of the shortest mail item Pmin.
  • the distance between the nips at least equal to or shorter than the length of the longest mail item Pmax along the conveying direction, it is possible to prevent the longest mail item Pmax from being away from the nip and free.
  • setting the distance between points E and F longer than the longest mail item Pmax is no meaning. Increasing the inter-nip distance above this value simply increases the possibility of disturbing the conveying posture.
  • the position of the nip (that is, point D) is determined such that the distance between the nip (point D or Z) of the upstream conveying section 14 and the nip (point E) of the posture control section 16 is at least greater than the length of the longest mail item Pmax along the conveying direction.
  • the speed of the driving roller 41 and driven roller 42 of the posture control section 16 is controlled to the target value after the posture detecting section 12 detects the posture of the mail item P being conveyed via the conveying path 10 and before the mail item P reaches the posture control section 16.
  • the posture control of the mail item P is started when the conveying-direction leading end of the mail item P enters the nip of the posture control section 16.
  • the distance between points D and E is designed to be longer than the longest mail item Pmax.
  • the distance between points D and E longer than the longest mail item Pmax causes the shortest mail item Pmin to remain free between points D and E over a relatively long distance in such a manner that the shortest mail item Pmin is restrained by any nip.
  • the increased length of the conveying section in which the mail item is free may cause the conveying posture to be distributed. This is not preferable.
  • the distance between points D and E is designed to be substantially the same as the minimum required distance, that is, the length of the longest mail item Pmax.
  • substantially the same length involves a distance slightly shorter than the longest mail item Pmax and a distance slightly greater than the longest mail item Pmax.
  • the trailing end of the longest mail item Pmax has not left the nip of the upstream conveying section 14 at the moment when the leading end of the longest mail item is nipped by the nip of the posture control section 16.
  • the trailing end of the longest mail item Pmax leaves the nip of the upstream conveying section 14. This prevents a stress sufficient to cause staining, damaging, or jamming from acting on the longest mail item Pmax.
  • the distance between points D and E can be set shorter than the longest mail item Pmax so that the resulting distance is within an allowable range.
  • reducing the distance between points D and E as much as possible enables a reduction in the distance over which the shortest mail item Pmin remains free during the conveyance. The factors disturbing the posture of the shortest mail item can thus be reduced.
  • the present embodiment can prevent the upstream conveying section 14 from applying an undesired stress to the mail item. This makes it possible to prevent upstream conveying section 14 from affecting the posture control of the mail item P, thus preventing the mail item P from being stained, damaged, or jammed. Furthermore, the distance over which the shortest mail item Pmin remains free during the conveyance can be reduced, enabling reliable and accurate posture control.
  • the distance between points D and E it is optimum to design the distance between points D and E to be substantially as long as the length of the longest mail item Pmax along the conveying direction.
  • the length of the free conveying section between points D and E in which the mail item P is not nipped or restrained by the nip varies depending on the allowable amount of the disturbance of the posture for the mail item being conveyed through this section.
  • the length between points D and E can be correspondingly increased.
  • process speed that is, the speed at which the mail item P is conveyed, and bending of the mail item P.
  • the distance from the posture detecting section 12 to the upstream conveying section 14 is designed to be short but still enough to perform the delivery conveyance on the mail item P the posture of which has been detected, without changing the conveying posture.
  • the distance between the most downstream restrain position in the posture detecting section 12, that is, the nip (point C) of the pulley 24c, and the nip (point D) of the upstream conveying section 14 is shorter than the shortest mail item Pmin. This allows the mail item P the posture of which has been detected to be fed into the upstream conveying section 14 without changing the posture of the mail item P. The possible disturbance of the conveying posture can thus be more reliably prevented.
  • the B-E distance between the posture detecting section 12 and the posture control section 16 is designed to be the minimum required distance corresponding to the time required to calculate the amount by which the posture control section 16 needs to control the posture of the mail item P and the time required to control the speed of the driving roller 41 to the target value. This prevents the distance between points B and E from increasing indefinitely. That is, if the distance between points B and E is increased to allow for the time for the control, an additional nip capable of applying a conveying force to the mail item P is appropriately provided between the posture detecting section 12 and the upstream conveying section 14.
  • the D-E distance between the upstream conveying section 14 and the posture control section 16 is prevented from being longer than the conveying-direction length of the longest mail item Pmax.
  • the posture of the mail item stands a better chance of being changed between points D and E, that is, in the belt nipping section with a weak conveying force.
  • the distance between points D and E is desirably substantially equivalent to the length of the longest mail item Pmax.
  • the present embodiment appropriately sets the positions of the nips arranged upstream and downstream, respectively, of the posture control section 16. This makes it possible to prevent an undesired stress from being applied to the mail item P the posture of which is being controlled, allowing the posture control operation to be stably performed. Furthermore, the mail item P can be prevented from being stained, damaged, or jammed during the posture control, allowing the conveying posture of the mail item P to be reliably and accurately controlled.
  • FIGS. 7 and 8 Another embodiment of the present invention will be described below with reference to FIGS. 7 and 8 .
  • Components of this embodiment which function similarly to those of the above-described embodiment are denoted by the same reference numerals and will not be described in detail.
  • the posture control section 16 is provided at only one point in the middle of the conveying path 10 to perform one control operation such that the mail item P assumes the desired posture.
  • a plurality of the posture control sections 16 are juxtaposed along the conveying path 10 so as to perform the respective control operations on the conveying posture of the mail item P. This makes it possible to deal with any posture control while conveying the mail item P at a high speed to increase the throughput.
  • posture control units 50 may each be composed of the upstream conveying section 14, the posture control section 16, and the downstream conveying section 18. These components may be arranged such that the mail item P is subjected to the delivery conveyance between the adjacent units 50. Specifically, each of the following distances is set slightly shorter than the conveying-direction length of the shortest mail item Pmin: the distance between the nip of the downstream conveying section 18 of a conveying-direction upstream unit 50a and the nip of the upstream conveying section 14 of a conveying-direction downstream unit 50b and the distance between the nip of the downstream conveying section 18 of the unit 50b and the nip of the upstream conveying section 14 of a further conveying-direction downstream unit 50c.
  • a plurality of posture control sections 16a and 16b may be arranged in one posture control unit 60.
  • the following distances may be designed as is the case with the above-described embodiment: the distance between the nip of the upstream conveying section 14 and the nip of the conveying-direction upstream position control section 16a (D-E1 distance) and the distance between the nip of the conveying-direction downstream conveying section 16b and the nip of the downstream conveying section 18 (E2-F distance).
  • the following distance may be designed to be slightly greater than the length of the longest mail item Pmax along the conveying direction: the distance between the nip of the upstream posture control section 16a located adjacent to the above-described posture control unit 60 in the conveying direction and the nip of the downstream control section 16b located adjacent to the above-described posture control unit 60 in the conveying direction (E1-E2 distance).
  • the number of posture control sections 16 can be optionally set and varied depending on the operational status of the position control device 1.
  • the posture control device 10 is incorporated in the mail processing apparatus 100.
  • the present invention is not limited to this.
  • the present invention may be applied as a posture control device for a bill processing apparatus that processes bills.
  • the above-described embodiment focuses on the position of the upstream conveying section 14 located upstream of and closest to the posture control section 16 in the conveying direction the position of the downstream conveying section 18 located downstream of and closest to the posture control section 16 in the conveying direction.
  • the present invention is also applicable to a layout in which other pulleys or conveying belts are present on the conveying path 10 between the nip of the posture control section 16 and the nip (point Y) of the downstream conveying section 18 as shown in FIG. 9 or a layout in which other pulleys or conveying belts are present on the conveying path 10 between the nip (point Z) of the upstream conveying section 14 and the nip of the posture control section 16 as shown in FIG. 10 .
  • conveying belts 73 and 74 are independently wound around pulleys 71 and 72 arranged between the nip of the posture control section 16 and the nip of the downstream conveying section 18. In this area, a strong conveying force is not applied to the mail item P being conveyed along the conveying path 10. That is, in this layout, the nip located downstream of and closest to the posture control section 16 in the conveying direction is an area (point Y) in which two conveying belts 75 and 76 are overlappingly wound in the downstream conveying section 18.
  • the nip located downstream of and closest to the posture control section 16 is an area (point Y) in which two conveying belts 81 and 82 are overlappingly wound around one pulley 83. Another nearby pulley 84 and a conveying belt 85 do not function so as to apply a sufficient conveying force to the mail item P being conveyed.
  • the nip located upstream of and closest to the posture control section 16 is an area (point Z) in which two conveying belts 86 and 87 are overlappingly wound around one pulley 88.
  • Other pulleys 89 around which the conveying belts 86 and 87 are wound do not function so as to form a nip.
  • the effects of the present invention can be enjoyed by setting the appropriate distance between the nip of the posture control section 16 and a nip standing a chance of to apply an undesired stress to the mail item P the posture of which is being controlled by the posture control section 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP08004658A 2007-06-20 2008-03-13 Dispositif de traitement de feuilles Withdrawn EP2006226A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007162607A JP4922079B2 (ja) 2007-06-20 2007-06-20 紙葉類処理装置

Publications (2)

Publication Number Publication Date
EP2006226A2 true EP2006226A2 (fr) 2008-12-24
EP2006226A3 EP2006226A3 (fr) 2011-03-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08004658A Withdrawn EP2006226A3 (fr) 2007-06-20 2008-03-13 Dispositif de traitement de feuilles

Country Status (4)

Country Link
US (1) US20080315512A1 (fr)
EP (1) EP2006226A3 (fr)
JP (1) JP4922079B2 (fr)
CN (1) CN101327876B (fr)

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EP2746204A3 (fr) * 2012-12-20 2017-03-01 BÖWE SYSTEC GmbH Dispositif et procédé destinés à faire tourner des objets plats

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DE102007041006A1 (de) * 2007-08-30 2009-03-05 Siemens Ag Verfahren und Vorrichtung zum Transport eines flachen Gegenstands
JP2011038885A (ja) * 2009-08-10 2011-02-24 Toshiba Corp 紙葉類の質量測定装置
CN101844677B (zh) * 2010-04-27 2011-12-14 上海邮政科学研究院 一种信函输送设备上的间距调整装置
US9375354B2 (en) * 2012-09-14 2016-06-28 The Procter & Gamble Company Methods and apparatuses for conveying absorbent articles in a converting line
CN105228573B (zh) * 2013-03-25 2019-04-23 株式会社汤山制作所 药剂分包装置、药剂分包纸余量判断方法和药剂分包纸卷筒
US10187542B1 (en) 2015-12-19 2019-01-22 Ripcord Inc. Integrated physical warehouse and digital document management system
CN110999271A (zh) * 2017-03-21 2020-04-10 瑞普科德公司 用于文档数字化的多纸张处理
MX2019011146A (es) 2017-03-21 2019-12-11 Ripcord Inc Sistemas y metodos para identificar y transferir hojas.

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DE19853026C1 (de) * 1998-11-18 2000-03-30 Icoma Fbs Gmbh Packtechnik Vorrichtung zum Ausrichten von Schlauchabschnitten
EP1188699A2 (fr) * 2000-09-14 2002-03-20 Kabushiki Kaisha Toshiba Dispositif pour corriger une posture de matériaux semblable au papier et appareil de traitement de matériaux semblable au papier avec un tel dispositif
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Also Published As

Publication number Publication date
EP2006226A3 (fr) 2011-03-02
CN101327876B (zh) 2010-12-08
CN101327876A (zh) 2008-12-24
US20080315512A1 (en) 2008-12-25
JP2009001359A (ja) 2009-01-08
JP4922079B2 (ja) 2012-04-25

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