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GB2154556A - Sheet feeding apparatus - Google Patents

Sheet feeding apparatus Download PDF

Info

Publication number
GB2154556A
GB2154556A GB08404362A GB8404362A GB2154556A GB 2154556 A GB2154556 A GB 2154556A GB 08404362 A GB08404362 A GB 08404362A GB 8404362 A GB8404362 A GB 8404362A GB 2154556 A GB2154556 A GB 2154556A
Authority
GB
United Kingdom
Prior art keywords
belt
sheet feeding
openings
feeding apparatus
belts
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Withdrawn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
GB08404362A
Other versions
GB8404362D0 (en
Inventor
Steven Michael Hosking
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.)
De la Rue Systems Ltd
Original Assignee
De la Rue Systems Ltd
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 De la Rue Systems Ltd filed Critical De la Rue Systems Ltd
Priority to GB08404362A priority Critical patent/GB2154556A/en
Publication of GB8404362D0 publication Critical patent/GB8404362D0/en
Publication of GB2154556A publication Critical patent/GB2154556A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B65H43/02—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, absence of articles
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/10—Mechanical details
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

Sheet feeding apparatus comprises a pair of endless belts (1, 2) cooperating with one another to define a transport path (6) for transporting sheets (7) from an input station (8) to an output station (9), the endless belt (2) having a plurality of openings (not shown) spaced apart along it, the passage of which is sensed by monitoring means (12, 13). <IMAGE>

Description

SPECIFICATION Sheet feeding apparatus The invention relates to sheet feeding apparatus comprising a pair of endless belts cooperating with one another to define a transport path for transporting sheets from an input station to an output station; and monitoring means for monitoring motion of at least one of the belts. Such sheet feeding apparatus is hereinafter referred to as of the kind described.
Sheet feeding apparatus of the kind described is particularly useful in banknote dispensing apparatus such as De La Rue 1600 dispenser for carrying sheets from a cassette or other store to an outlet.
Typically, a number of sheet feeding apparatuses of the kind described will be positioned in series to form a complete delivery path with other sheet feeding apparatus providing reject paths.
In sheet feeding apparatus of the kind described it is important to monitor motion of the belts since operation of the apparatus is typically automatic and it is necessary to actuate the belts for specified times to deliver a specified number of banknotes.
Conventionally, the monitoring means comprises an optical source and an optical sensor mounted on opposite sides of a slotted timing disc attached to a drive shaft which drives one of the endless belts in use. Monitoring the passage of slots past the optical sensor provides an indication of the degree of movement of the belts. This technique assumes that the rotary motion of the timing disc is directly related to the linear speed of the belts and takes no account of any slip between the pulley to which the timing disc is attached and the belt transport.
In accordance with the present invention, sheet feeding apparatus of the kind described is characterised in that a plurality of openings are spacedapart along the at least one belt; and in that the monitoring means includes means for sensing the passage of the openings.
The invention enables motion of the at least one belt to be directly monitored rather than indirectly via a slotted timing disc and thus is far more acurate than the prior art methods.
Preferably, the openings are equally spaced along the belt. This simplifies calculation of the belt position.
Conveniently, the openings are positioned along the centre of the belt since this minimizes problems due to unequal stretching of the sides of the belt.
Although the monitoring means could monitor the passage of the openings along the transport path, preferably the monitoring means is at a position where the openings are not obscured by sheets being transported along the transport path.
This enables the use of an optical source and an optical sensor placed on either side of the belt to detect the passage of the openings.
The invention leads to significant cost reduction since the conventional timing disc is not required.
It is not affected by pulley or belt slip.
An example of sheet feeding apparatus in acordance with the present invention will now be described with reference to the accompanying drawings, in which: Figure 1 is a schematic diagram of the apparatus; and Figure 2 illustrates a portion of one of the endless belts shown in Figure 1.
The sheet feeding apparatus illustrated in Figure 1 forms part of a banknote dispenser (not shown).
The apparatus comprises a pair of endless belts 1, 2. The endless belt 1 is entrained about a set of pulleys 3 while the endless belt 2 is entrained about a set of pulleys 4 and a drive pulley 5. The sets of pulleys 3, 4 and the drive pulley 5 are positioned so that the endless belts 1, 2 are urged against one another along a transport path 6 so that rotation of the drive pulley 5 causes rotation of the endless belt 2 which in turn causes rotation of the endless belt 1.
A stack of banknotes 7 which may be contained in a conventional cassette (not shown) is positioned at an input station 8 of the apparatus and banknotes are urged in a conventional manner, singly into the nip between the leading pulleys 3, 4. In use, as the endless belts 1, 2 rotate, the banknotes are carried along the transport path 6 to an output station 9. The drive pulley 5 rotates, in use, in the direction shown by arrow 10.
The endless belt 2 includes a series of equally spaced openings 11 positioned along its centre (Figure 2). Mounted downstream of the output station 9 is an optical sensor 12 and an optical source, for example an LED, 13. The optical source and sensor 12, 13 are connected in a conventional electrical circuit (not shown) to monitor the passage of openings 11 between them, thus monitoring motion of the endless belts and the passage of sheets along the transport path 6.
1. Sheet feeding apparatus comprising a pair of endless belts cooperating with one another to define a transport path for transporting sheets from an input station to an output station; and monitoring means for monitoring motion of at least one of the belts characterised in that a plurality of openings are spaced apart along the at least one belt; and in that the monitoring means includes means for sensing the passage of the openings.
2. Sheet feeding apparatus according to claim 1, wherein the openings are equally spaced along the belt.
3. Sheet feeding apparatus according to claim 1 or claim 2, wherein the openings are positioned along the centre of the belt.
4. Sheet feeding apparatus acording to any of the preceding claims, wherein the monitoring means are arranged at a position where the openings are not obscured by sheets being transported along the transport path.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Sheet feeding apparatus The invention relates to sheet feeding apparatus comprising a pair of endless belts cooperating with one another to define a transport path for transporting sheets from an input station to an output station; and monitoring means for monitoring motion of at least one of the belts. Such sheet feeding apparatus is hereinafter referred to as of the kind described. Sheet feeding apparatus of the kind described is particularly useful in banknote dispensing apparatus such as De La Rue 1600 dispenser for carrying sheets from a cassette or other store to an outlet. Typically, a number of sheet feeding apparatuses of the kind described will be positioned in series to form a complete delivery path with other sheet feeding apparatus providing reject paths. In sheet feeding apparatus of the kind described it is important to monitor motion of the belts since operation of the apparatus is typically automatic and it is necessary to actuate the belts for specified times to deliver a specified number of banknotes. Conventionally, the monitoring means comprises an optical source and an optical sensor mounted on opposite sides of a slotted timing disc attached to a drive shaft which drives one of the endless belts in use. Monitoring the passage of slots past the optical sensor provides an indication of the degree of movement of the belts. This technique assumes that the rotary motion of the timing disc is directly related to the linear speed of the belts and takes no account of any slip between the pulley to which the timing disc is attached and the belt transport. In accordance with the present invention, sheet feeding apparatus of the kind described is characterised in that a plurality of openings are spacedapart along the at least one belt; and in that the monitoring means includes means for sensing the passage of the openings. The invention enables motion of the at least one belt to be directly monitored rather than indirectly via a slotted timing disc and thus is far more acurate than the prior art methods. Preferably, the openings are equally spaced along the belt. This simplifies calculation of the belt position. Conveniently, the openings are positioned along the centre of the belt since this minimizes problems due to unequal stretching of the sides of the belt. Although the monitoring means could monitor the passage of the openings along the transport path, preferably the monitoring means is at a position where the openings are not obscured by sheets being transported along the transport path. This enables the use of an optical source and an optical sensor placed on either side of the belt to detect the passage of the openings. The invention leads to significant cost reduction since the conventional timing disc is not required. It is not affected by pulley or belt slip. An example of sheet feeding apparatus in acordance with the present invention will now be described with reference to the accompanying drawings, in which: Figure 1 is a schematic diagram of the apparatus; and Figure 2 illustrates a portion of one of the endless belts shown in Figure 1. The sheet feeding apparatus illustrated in Figure 1 forms part of a banknote dispenser (not shown). The apparatus comprises a pair of endless belts 1, 2. The endless belt 1 is entrained about a set of pulleys 3 while the endless belt 2 is entrained about a set of pulleys 4 and a drive pulley 5. The sets of pulleys 3, 4 and the drive pulley 5 are positioned so that the endless belts 1, 2 are urged against one another along a transport path 6 so that rotation of the drive pulley 5 causes rotation of the endless belt 2 which in turn causes rotation of the endless belt 1. A stack of banknotes 7 which may be contained in a conventional cassette (not shown) is positioned at an input station 8 of the apparatus and banknotes are urged in a conventional manner, singly into the nip between the leading pulleys 3, 4. In use, as the endless belts 1, 2 rotate, the banknotes are carried along the transport path 6 to an output station 9. The drive pulley 5 rotates, in use, in the direction shown by arrow 10. The endless belt 2 includes a series of equally spaced openings 11 positioned along its centre (Figure 2). Mounted downstream of the output station 9 is an optical sensor 12 and an optical source, for example an LED, 13. The optical source and sensor 12, 13 are connected in a conventional electrical circuit (not shown) to monitor the passage of openings 11 between them, thus monitoring motion of the endless belts and the passage of sheets along the transport path 6. CLAIMS
1. Sheet feeding apparatus comprising a pair of endless belts cooperating with one another to define a transport path for transporting sheets from an input station to an output station; and monitoring means for monitoring motion of at least one of the belts characterised in that a plurality of openings are spaced apart along the at least one belt; and in that the monitoring means includes means for sensing the passage of the openings.
2. Sheet feeding apparatus according to claim 1, wherein the openings are equally spaced along the belt.
3. Sheet feeding apparatus according to claim 1 or claim 2, wherein the openings are positioned along the centre of the belt.
4. Sheet feeding apparatus acording to any of the preceding claims, wherein the monitoring means are arranged at a position where the openings are not obscured by sheets being transported along the transport path.
5. Sheet feeding apparatus substantially as hereinbefore described with reference to the accompanying drawings.
GB08404362A 1984-02-20 1984-02-20 Sheet feeding apparatus Withdrawn GB2154556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08404362A GB2154556A (en) 1984-02-20 1984-02-20 Sheet feeding apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08404362A GB2154556A (en) 1984-02-20 1984-02-20 Sheet feeding apparatus

Publications (2)

Publication Number Publication Date
GB8404362D0 GB8404362D0 (en) 1984-03-28
GB2154556A true GB2154556A (en) 1985-09-11

Family

ID=10556858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08404362A Withdrawn GB2154556A (en) 1984-02-20 1984-02-20 Sheet feeding apparatus

Country Status (1)

Country Link
GB (1) GB2154556A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818986A (en) * 1955-10-11 1959-08-26 Int Computers & Tabulators Ltd Improvements in or relating to sheet feed detecting devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB818986A (en) * 1955-10-11 1959-08-26 Int Computers & Tabulators Ltd Improvements in or relating to sheet feed detecting devices

Also Published As

Publication number Publication date
GB8404362D0 (en) 1984-03-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)