EP0578866A1 - Anlage zum Zählen einer Reihe von Gegenständen - Google Patents

Anlage zum Zählen einer Reihe von Gegenständen Download PDF

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Publication number
EP0578866A1
EP0578866A1 EP92201984A EP92201984A EP0578866A1 EP 0578866 A1 EP0578866 A1 EP 0578866A1 EP 92201984 A EP92201984 A EP 92201984A EP 92201984 A EP92201984 A EP 92201984A EP 0578866 A1 EP0578866 A1 EP 0578866A1
Authority
EP
European Patent Office
Prior art keywords
articles
counting
conveying direction
dogs
conveyor
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Withdrawn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
EP92201984A
Other languages
English (en)
French (fr)
Inventor
Hugo Victor De Vries
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.)
Elten Systems BV
Original Assignee
Elten Systems BV
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 Elten Systems BV filed Critical Elten Systems BV
Priority to EP92201984A priority Critical patent/EP0578866A1/de
Publication of EP0578866A1 publication Critical patent/EP0578866A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor

Definitions

  • the present invention relates to an apparatus for counting a series of articles supplied on a conveyor, which apparatus comprises a counting mechanism operated by the articles.
  • the mutual distance of the articles has a negative effect on the capacity of the counting apparatus, and in addition requires the division of the conveyor on the site of the counting apparatus, the arrangement of the parts of the conveyor spaced from one another and the positioning of a third conveyor in the formed space, which third conveyor runs faster than both parts of the first mentioned conveyor so as to space the articles.
  • the additional, third conveyor and the stopping device render the counting apparatus more expensive and more sensitive to defects.
  • the invention aims at removing the disadvantages of the known counting apparatus.
  • the counting mechanism comprises an endless, moving around counting member, in that the counting member is provided with dogs extending into the conveyor path of the articles and the mutual distance thereof, measured along a straight line, being smaller than the length of the articles in the conveying direction and greater than the half of said length, and in that two guides for the articles are mounted in the conveyor path of the articles on the site of the counting member, said guides restricting the width of the conveyor path to a size which is somewhat larger than the width of the articles perpendicular to the conveying direction, which guides are spaced from one another in the conveying direction.
  • the dogs on the endless counting member are intermittently moved over about the mutual distance of the dogs, and thereby the articles may be counted easily, e.g. by fixing a metal plate to the dogs, which plate passes a fixed inductive switch.
  • the guides are two guide rails consisting of a portion, which is obliquely positioned with respect to the conveying direction, and of a portion parallel to the conveying direction, said portions merging into one another in a point, and at the front guide rail in conveying direction, the distance in conveying direction between the mentioned point and the point, where the dogs enter the conveyor path, is smaller than the length of the articles.
  • each article is brought into an oblique position on the conveyor path at the right moment, in such a way, that the front face of the next article may displace a dog and therewith the counting member.
  • the counting member is an endless chain provided with three dogs.
  • the counting apparatus is mounted on a support frame 1 fixed to a frame 2 on which a conveyor 3 for the articles K is supported.
  • the support frame 1 consists of supports 4 fixed to the frame 2 of the conveyor 3 and of a supporting beam 5 which is mounted substantially horizontally to the supports 4.
  • the conveyor 3 is preferably a roller conveyor, the rollers 6 of which are preferably partially freely rotatable and are for instance partially driven, in such a way, that the articles K to be conveyed are driven with a certain force in conveying direction T.
  • the conveyor 3 is at both sides provided with an angle iron 7 limiting a conveyor path 8, the width of which being about 15% larger than that of the articles K.
  • the counting apparatus according to the invention will be described by way of example on the basis of the counting of crates K, but it stands to reason that also other articles than crates can be counted, for instance, boxes, cases and the like.
  • Two square supports 9 are mounted on the supporting beam 5 which are clamped by means of a clamping plate 10 in the U-shaped supporting beam 5 and through bolts 11, in such a way, that the supports 9 may be adjusted in a longitudinal direction of the supporting beam 5.
  • a supporting plate 13 is mounted on the horizontal flange 12 of both supports 9 by means of bolts 9a, on which supporting plate the actual counting mechanism 14 is mounted.
  • the counting mechanism 14 comprises, according to the invention, an endless counting member 15, which is an endless chain in the example shown, said chain being provided with three dogs or cams 16, each of which being fastened on a link, said dogs or cams being trapezoidal and their long parallel side Z faces the arriving articles K, and may for instance be made of nylon.
  • the chain 15 runs over two chain wheels 17, each being rotatably mounted on a shaft 18 which is mounted perpendicularly to the supporting plate 13. Between each chain wheel 17 and the supporting plate 13 a spacer tube 19 may be mounted on the shaft 18, and the shafts 18 are fixed on the supporting plate 13 by means of screw thread ends and a nut.
  • the mutual distance of the dogs 16 on the chain 15, measured along a straight line is smaller than the length L of the crates K in the conveying direction T and larger than the half of said length L.
  • the function thereof will be elucidated hereinafter.
  • a metal plate 20 is fixed, with which a counting instrument 21, in this case an inductive switch, can be operated and consequently the articles K may be counted in a way to be described hereinafter.
  • a counting instrument 21 in this case an inductive switch
  • the counting mechanism 14 yet further comprises a tensioning device 22 for the chain 15, which tensioning device consists of a square support 23 fixed to the supporting plate 13 with bolts 24, of a stud 25 which protrudes through a bore in the support 23 and which is fixed to the support 23 with two bolts 26, and of a connecting strip 27 which is fixed with its one end to the stud 25 and with its other end e.g. to the spacer tube 19 on the left shaft 18 in fig. 1.
  • This shaft 18 protrudes through an elongated hole (not shown) in the supporting plate 13.
  • two supports 28 are fixed on the frame 2 of the conveyor 3, to which at the upper ends of the supports facing the conveyor 3 a U-shaped supporting beam 29 is fixed, to which according to the invention spaced guide rails 30 are mounted.
  • the guide rails 30 are clamped to the U-shaped supporting beam 29 by means of a clamping plate 31 and through bolts 32, in such a way, that the rails 30 are adjustably in longitudinal direction of the beam 29.
  • the guide rails 30 are in upstream and downstream direction of the conveyor 3 spaced from a part of the conveyor path 8 wherein the dogs 16 on the endless chain 15 move transversely into the conveyor path 8.
  • the guide rails 30 consist of a portion 30A which is positioned obliquely to a conveying direction T and of a portion 30B which is positioned parallelly to the conveying direction T, said portions merging into one another in point 30C.
  • the portion 30B restricts the width of the conveyor path to a size which is preferably somewhat larger than the width B of the crates K perpendicular to the conveying direction T.
  • the counting mechanism 14 yet further comprises a housing 33 which is open at its side facing the roller conveyor 3 and which is fixed on the supporting plate 13 by bolts 34 and spacer tubes 35.
  • the crates to be counted are indicated in fig. 1 with K1, K2 and K3, respectively, while the dogs 16 carried by said crates are indicated with M1, M2 and M3, respectively, and the guide rails 30 are indicated with G1 and G2, respectively.
  • the crate K1 has carried the dog M1 and the crate K2 the dog M2 into the positions which are drawn in fig. 1.
  • the crate K2 Upon conveying the crates K in the direction T, when they arrive at the counting appartus, they are first pushed towards the counting apparatus by the guide rail G2, consquently in figure 1 to the right with respect to the conveying direction T, so as to enable their front face V to engage with the long parallel side Z of the dogs 16. Therewith, the crate K2 has carried the dog M2 into the position according to fig. 1, whereas the dog M3 during this movement of the crate K2 is moved into the conveyor path 8 of the crates K and therewith has pushed the rear end of the crate K2 to the left in relation to the conveying direction T. As a result, the crate K2 takes the oblique position as drawn in fig. 1, because the front end of the crate K2 meanwhile has arrived at the position of the guide rail G1, so that this front end cannot be pushed along to the left.
  • This oblique position of the crate K2 is reached, in that the mutual distance of the dogs 16, measured along a straight line, is smaller than the length L of the crates K and larger than the half of said length L, so that the dog M3 engages the rear half of the side face of the crate K2.
  • the rear end of the crate K2 may move to the left with respect to the conveying direction T, because the guide rail G1 is spaced downstream from the portion of the conveyor path 8, in which the dogs 16 on the endless chain 15 move transversely into the conveyor path 8.
  • the distance between the point 30C of the guide rail G1 and the point, where the dogs 16 enter the conveyor path 8 is smaller than the length L of the crates. Consequently, as soon as the dog M3 enages the rear half of the crate K2, the front face V of the crate K2 has already passed the point 30C of the guide rail G1.
  • the crate K3 may engage with its front face V the dog M3 and move it into the position of the dog M2 in fig. 1, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Framework For Endless Conveyors (AREA)
EP92201984A 1992-07-15 1992-07-15 Anlage zum Zählen einer Reihe von Gegenständen Withdrawn EP0578866A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92201984A EP0578866A1 (de) 1992-07-15 1992-07-15 Anlage zum Zählen einer Reihe von Gegenständen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92201984A EP0578866A1 (de) 1992-07-15 1992-07-15 Anlage zum Zählen einer Reihe von Gegenständen

Publications (1)

Publication Number Publication Date
EP0578866A1 true EP0578866A1 (de) 1994-01-19

Family

ID=8210743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201984A Withdrawn EP0578866A1 (de) 1992-07-15 1992-07-15 Anlage zum Zählen einer Reihe von Gegenständen

Country Status (1)

Country Link
EP (1) EP0578866A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB569210A (en) * 1943-09-08 1945-05-11 Roland Tom Storey Improvements in or relating to means for counting crates or other moving articles
US2844318A (en) * 1955-02-28 1958-07-22 V W Boswell Counting device for conveyor mechanisms
DE2247564A1 (de) * 1971-11-11 1973-05-17 Sig Schweiz Industrieges Vorrichtung zum ueberwachen von gegenstaenden

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB569210A (en) * 1943-09-08 1945-05-11 Roland Tom Storey Improvements in or relating to means for counting crates or other moving articles
US2844318A (en) * 1955-02-28 1958-07-22 V W Boswell Counting device for conveyor mechanisms
DE2247564A1 (de) * 1971-11-11 1973-05-17 Sig Schweiz Industrieges Vorrichtung zum ueberwachen von gegenstaenden

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