EP0299297B1 - Dispositif pour la formation de piles séparées d'un nombre égal d'articles sous forme de disque à partir d'une pile en mouvement - Google Patents

Dispositif pour la formation de piles séparées d'un nombre égal d'articles sous forme de disque à partir d'une pile en mouvement Download PDF

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Publication number
EP0299297B1
EP0299297B1 EP88110535A EP88110535A EP0299297B1 EP 0299297 B1 EP0299297 B1 EP 0299297B1 EP 88110535 A EP88110535 A EP 88110535A EP 88110535 A EP88110535 A EP 88110535A EP 0299297 B1 EP0299297 B1 EP 0299297B1
Authority
EP
European Patent Office
Prior art keywords
separating
stack
carriage
wedge
sensor
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.)
Expired - Lifetime
Application number
EP88110535A
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German (de)
English (en)
Other versions
EP0299297A2 (fr
EP0299297A3 (en
Inventor
Jürgen Müller
Eberhard Ingenieur Halle
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.)
Ardagh Metal Packaging Germany GmbH
Original Assignee
Schmalback Lubeca 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 Schmalback Lubeca AG filed Critical Schmalback Lubeca AG
Publication of EP0299297A2 publication Critical patent/EP0299297A2/fr
Publication of EP0299297A3 publication Critical patent/EP0299297A3/de
Application granted granted Critical
Publication of EP0299297B1 publication Critical patent/EP0299297B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M9/00—Counting of objects in a stack thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/02—Counters with additional facilities for performing an operation at a predetermined value of the count, e.g. arresting a machine

Definitions

  • the invention relates to a device for forming separate impacts of equal, flat side by side or superimposed disc-shaped workpieces, in particular can lids, from a longitudinally moved in a conveyor trough with an electronic counting and control device, a separating device with a parallel to the conveyor trough and in the stack controllable driver that accelerates the respective impact.
  • the known devices are structurally relatively complex and work with a relatively low counting speed of up to about 500 workpieces or can lids per second. Flawless operation can only be achieved if the workpieces or can lids to be counted have very small tolerances in their edge area, which works together with the counting device.
  • the usability of the cover is not impaired even with larger tolerances in the shape of the edge, it is desirable for manufacturing and economic reasons to allow the greatest possible tolerance range in the edge formation.
  • the invention has for its object to design a device of the type described in the introduction so that greater tolerances of the to be counted Workpieces in their edge area a very high counting speed can be achieved without having to accept an increase in the error rate.
  • the device has the features mentioned in the characterizing part of claim 1.
  • the feed device which is also provided upstream of the sensor and can be converted into a clamping and release position
  • the feed of the stack which can be done manually or mechanically, is determined shortly before the desired number of workpieces of each impact is reached by the feed device mentioned, which is just before Reaching the target number of workpieces of a joint in creep speed works and thus enables the precise separation of the joint from the subsequent stack by said separating device.
  • the separating wedge used here first creates a separating gap at a point on the peripheral edge behind the last workpiece of the respective joint, into which the separating cutters can then engage in order to form the joint from the subsequent stack Advancing gap accelerated.
  • the depth of penetration of the cutting edges can be kept low if the cutting edges are adapted to the outline shape of the workpieces. As a result, only slight control movements of the cutting edges and also of the separating wedge in the stack are required in order to achieve a safe separation of the joint from the stack.
  • the device can be kept very narrow relative to the respective workpiece size and can also be arranged only above the respective conveyor trough.
  • the senor, the feed device and also the separating device are arranged in a common support frame which extends above and along the conveyor trough with supports which are adjustable in height and laterally in the direction transverse to the conveyor trough and are releasably connectable to the conveyor trough.
  • the device can be mounted at any point on the conveyor trough without the conveyor trough having to be interrupted.
  • the sensor In order to compensate for the diameter tolerances of the workpieces or to be able to use the arrangement for workpiece stacks with different diameters, it is advisable to arrange the sensor on a slide shoe that is resiliently height-adjustable on the support frame.
  • the sliding shoe can thus slide over the edges of the workpieces and thus ensures a constant distance between the sensors and the edge of the workpieces. It is expedient if the sensor is equipped as a reflection sensor with two sensor cells.
  • the feed device is expediently designed in accordance with the features of claims 5 to 8.
  • the conveyor trough 1 which runs horizontally in the example, is adapted in its trough shape to the diameter of the can lid, which is conveyed along the trough in the direction of arrow 2 by hand or by machine and should be divided into individual joints 3a with the same number of covers.
  • a support frame 4 can be seen in which the devices provided for the counting and separating process of the stack in respective joints 3a (see FIG. 2) are arranged.
  • the electronics cooperating with these devices are housed in a separate housing, not shown in the drawing.
  • the support frame 4 has height-adjustable support supports (4b) which can be adjusted laterally in the direction transverse to the conveyor trough (1). With these support supports 4b, the support frame 4 can be fastened to the conveyor trough 1 at any point along this trough. Due to the mentioned adjustability of the support supports 4b of the support frame 4, it can be adapted to differently wide conveyor troughs 1 and also to different stacking heights, i.e. possible on stacks of lids of different diameters.
  • a contactless sensor with the sensor cells 6 and 7 is provided in the support frame 4, which is connected to an electronic counting device not shown in the drawing.
  • the sensor is arranged in a sliding shoe 5 which is height-adjustable and spring-mounted on the support frame 4.
  • Fig. 2 shows a section through the slide shoe 5 in an enlarged view.
  • the slide shoe 5 is held on a carrier 4a of the support frame 4 via a lifting rod 6 guided with play in the carrier 4a and a spring 7a arranged thereon.
  • the sliding block 5 is attached to the lifting rod 8 in such a way that it can execute pivoting movements relative to the connecting point 8a within the scope of the play between the lifting rod 8 and the associated recess in the sliding block 5.
  • the slide shoe 5 slides on the curves of the lid D located below it, whereby it can adapt to the diameter tolerances of the lid D by the described adjustability and in each case ensures that the two sensor cells 6 and 7 provided in the example, which together have a reflection sensor form, always keep the same distance from the curves of the lid D to be counted.
  • the sliding shoe 5 is made of two parts 5a and 5b which can be moved relative to one another in order to be able to adapt the spacing of the sensor cells 6 and 7 to the respective thicknesses of the covers to be counted.
  • a feed device 9 engaging on the stack 4, which can be converted into a clamping and release position, is provided, which moves back and forth along the support frame 4 by means of a motor-driven slide 10 on guide rods 11 is movable.
  • the motor drive device 10a for the carriage 10 is designed and controlled via the electronics so that the carriage 10 can be driven in the clamping position of the feed device 9 with two feed speeds, one of which corresponds to a creep speed.
  • the feed device 9 is shown in FIG. 1 in a far advanced position.
  • the feed device 9 has two double levers 12 articulated on the carriage 10 opposite each other, each of which has a clamping jaw 12a that can be pressed against the stack 3 in its lower region wear.
  • the upper ends of the double lever 12 are connected to a spreading device, designated overall by 13.
  • This consists of two abutment brackets 14, which are connected to each other via a spring 15, which tries to pull the brackets 14 against each other.
  • the trestles 14 have inclined surfaces 16 which are directed towards one another and inclined in opposite directions and which cooperate with a wedge 17 which can be displaced along these surfaces.
  • the wedge 17 is connected to a piston-cylinder drive 18 held on the slide 10 for the feed device 9.
  • the advance of the stack 3 which can be accomplished by hand or by machine when the clamping jaws are open, is only determined solely by the feed device 9.
  • the feed device is brought into effect in the retracted position when the number required for a joint to be separated is almost reached.
  • the feed device 9 is first actuated at its higher speed and moved in the feed direction. If only a few covers are missing from the joint to be separated, the electronics switch to the lower speed of the feed, which corresponds to a creep speed, and the feed is completely interrupted when the number of specified covers of a joint is reached.
  • FIG. 1 This position of the feed device 9 is shown in FIG. 1, wherein the separation of the joint 3a with the aid of the separating device is also shown in this figure.
  • the separating device has a separating wedge 19 which can be moved from top to bottom and back in the example and which is shown in a very enlarged manner in FIG. 1. Furthermore, the separating device is equipped with two separating cutters 20 which can be controlled into the separating gap on both sides of the separating wedge and which are connected to a drive 21 which is effective along the stack 3 and which is designed as a piston-cylinder arrangement in the example shown.
  • the design of the separating device is shown in the sectional view of FIG. 4.
  • the separating wedge 19 has two wedge sections 19a and 19b running parallel to one another. These include the slide shoe 5 between them with play.
  • the separating cutters 20 On both sides of the separating wedge 19, the separating cutters 20 can be seen, which have engaging edges 20a running in opposite directions and which are held on a lifting slide 27 guided in the supporting frame.
  • the lifting slide 27 is guided on slide rods 22 which are held in a stationary manner in the support frame 4.
  • the yoke of the lifting slide 27 in turn forms a slide guide for the separating wedge 19. It consists of slide rods 23 which are guided through corresponding recesses in the yoke of the slide 27 and carry an abutment plate 24 at their upper end. This is connected to a piston-cylinder drive 25, which encloses a return spring 25a.
  • both the separating wedge 19 and the separating cutters 20 are actuated to control or form gaps between the counted lids of a joint 3a and the subsequent stack 3.
  • the cutting edges 20 can participate in this movement because the piston-cylinder drive 21 (FIGS. 1 and 2) connected to them is connected to the supporting frame 4 at its end remote from the cutting edges 20 via a joint 28.
  • the push rods 29 with the cutting edges 20 held thereon are advanced in the conveying direction of the stack 1 to form the gap between the joint 3a and the stack 3 of the covers and by reversing the piston-cylinder drive 21 again returned to their starting position.
  • Both the separating wedge 19 and the separating cutters 20 are returned to their starting position by the return spring 25a shown in FIG. 4.
  • the feed device 9 is then returned to its starting position by means of the motor drive device 10a before a new counting process begins.
  • separating wedge 19 and the cutting edges 20 can be used both for lids with smaller diameters in accordance with the solid representation and for lids with larger diameters, as indicated by the broken line.
  • the double levers 12 are pivotably mounted and, according to FIG. 3, are held in the abutment brackets 14 in the direction towards one another and away from one another.
  • This adjustment and locking possibility is given by the elongated holes 14a provided in the abutment brackets 14, through which the holding screws 30 attached to the double levers 12 extend.
  • the pivoted-out position of a double lever for abutment on a lid of larger diameter also shown in dashed lines, is shown in broken lines.
  • the support frame 4 is also adjustable in height.
  • the distance between the support supports 4b of the support frame 4 can be changed transversely to the longitudinal extent of the conveyor trough 1.
  • Fig. 5 shows the height and side adjustability of the support brackets 4b in order to be able to use the support frame 4 in connection with conveyor troughs 1 of different dimensions.
  • a conveyor trough 1 for lids of larger diameter is shown in dashed lines and in the right part the support 4b set to the necessary height and the required lateral distance. The device can thus be adjusted with extremely little effort to adjust the lid or other disk-shaped workpieces of different diameters.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Special Conveying (AREA)
  • De-Stacking Of Articles (AREA)

Claims (12)

  1. Dispositif pour la formation de bottes séparées d'un nombre égal d'articles sous forme de disques disposés à plat les uns à côté ou au-dessus des autres, notamment de couvercles de boîtes, à partir d'une pile en mouvement dans une gouttière transporteuse, avec un dispositif électronique de comptage et de commande, et un dispositif de séparation doté d'un entraîneur, guidé par coulisseau parallèlement à la gouttière transporteuse et pouvant être introduit dans la pile, qui fait avancer de manière acclélérée la botte respective,
    caractérisé en ce qu'un capteur (6;7) travaillant sans contact et réagissant au bord des articles (D) est relié comme générateur d'impulsions au dispositif de comptage, en ce qu'est prévu un dispositif d'avance (9), agissant sur la pile (3) avant le capteur (6;7) dans le sens de transport, qui peut être transféré dans une position de serrage et dans une position de dégagement et qui, dans la position de serrage, peut être entraîné par l'intermédiaire de dispositif de commande avec au moins deux vitesses d'avance, dont l'une correspond à une avance lente, et en ce que le dispositif de séparation est équipé d'un coin de séparation (19) mobile en va-et-vient et destiné à former une lacune de séparation dans la région de bord entre les articles voisins respectifs de la botte (3a) et de la pile (3), ainsi que d'au moins deux lames de séparation (20) qui peuvent être introduites dans la lacune de séparation et sont reliées à un entraînement (21) actif dans sens longitudinal de la pile.
  2. Dispositif selon la revendication 1, caractérisé en ce que le capteur (6;7), le dispositif d'avance (9) et le dispositif de séparation sont disposés dans un bâti porteur commun (4), s'étendant au-dessus et le long de la gouttière transporteuse (1) et doté de montants (4b), qui peuvent être réglés en hauteur et latéralement en direction transversale à la gouttière transporteuse et lui être assemblés de manière détachable.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le capteur (6;7) est disposé dans un patin de guidage (5) maintenu élastiquement, avec possibilité de réglage en hauteur, sur le bâti porteur (4).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le capteur est un capteur par réflexion équipé de deux cellules (6,7).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'avance (9) présente un coulisseau (10), qui peut être déplacé de manière motorisée le long du bâti porteur (4) et au-dessus de la pile (3) et auquel sont articulés des doubles leviers (12), qui portent à une extrémité des mors de serrage (12a) pouvant être pressés en vis-à-vis contre la pile et dont les extrémités éloignées de la pile sont reliées à un dispositif écarteur (13) actionnable à l'encontre de l'action de ressorts.
  6. Dispositif selon la revendication 6, caractérisé en ce que le dispositif écarteur (13) est constitué de deux blocs de contre-appui (14), chacun relié à un des doubles leviers (12) et mutuellement reliés par un ressort (15) et présentant des faces obliques (16) en vis-à-vis et d'obliquités inverses, et d'un coin (17) pouvant coulisser entre ces blocs le long des faces obliques.
  7. Dispositif selon la revendication 6, caractérisé en ce que le coin coulissant (17) est relié à un dispositif d'entraînement (18) fixé sur le coulisseau (10) du dispositif d'avance (9).
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'afin de modifier l'écartement des mors de serrage (12a), les extrémités des doubles leviers (12) du dispositif d'avance (9) qui sont maintenues contre les blocs de contre-appui (14) peuvent être rapprochées ou éloignées et bloquées en position.
  9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les lames de séparation (20) peuvent être introduites dans la lacune de séparation de part et d'autre du coin de séparation (19a,19b) et sont maintenues sur un coulisseau de levage (27) guidé dans le bâti porteur (4), et en ce que le coin de séparation est guidé par l'intermédiaire d'un autre coulisseau (23) sur le coulisseau de levage des lames de séparation.
  10. Dispositif selon la revendication 9, caractérisé en ce que les coulisseaux (23,27) du coin de séparation (19a,19b) et des lames de séparation (20) possèdent un entraînement de levage commun (25) qui agit sur le coulisseau du coin de séparation, et en ce que le coulisseau du coin de séparation, lors de l'introduction du coin dans la pile, entraîne avec lui le coulisseau des lames de séparation après une course à vide réglable (26).
  11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les lames de séparation (20) sont fixées à des bielles (29) guidées dans le coulisseau (27) des lames et reliées à un entraînement à cylindre-piston (21) s'étendant le long de la gouttière transporteuse (1), et en ce que l'entraînement à cylindre-piston est, par son extrémité opposée aux lames de séparation, articulé en pivotement vertical au bâti porteur (4).
  12. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les lames de séparation (20) présentent des bords d'engagement (20a) d'obliquités inverses.
EP88110535A 1987-07-11 1988-07-01 Dispositif pour la formation de piles séparées d'un nombre égal d'articles sous forme de disque à partir d'une pile en mouvement Expired - Lifetime EP0299297B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3722976A DE3722976C1 (de) 1987-07-11 1987-07-11 Vorrichtung zur Bildung getrennter Stoesse von gleichzahligen scheibenfoermigen Werkstuecken aus einem laengsbewegten Stapel
DE3722976 1987-07-11

Publications (3)

Publication Number Publication Date
EP0299297A2 EP0299297A2 (fr) 1989-01-18
EP0299297A3 EP0299297A3 (en) 1989-08-30
EP0299297B1 true EP0299297B1 (fr) 1992-03-25

Family

ID=6331390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110535A Expired - Lifetime EP0299297B1 (fr) 1987-07-11 1988-07-01 Dispositif pour la formation de piles séparées d'un nombre égal d'articles sous forme de disque à partir d'une pile en mouvement

Country Status (4)

Country Link
US (1) US4869359A (fr)
EP (1) EP0299297B1 (fr)
CA (1) CA1316189C (fr)
DE (2) DE3722976C1 (fr)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
US4978845A (en) * 1989-09-28 1990-12-18 Dynetics Engineering Corporation Card counter with self-adjusting card loading assembly and method
US5163073A (en) * 1991-03-18 1992-11-10 Ball Corporation Can end counting system
IT1252779B (it) * 1991-07-23 1995-06-28 Perini Fabio Spa Dispositivo per trasferire pacchi di tovagliolini da una pila alimentata da una macchina piegatrice ad un trasportatore.
US5336043A (en) * 1992-02-07 1994-08-09 Bader Bernard R Method and apparatus for handling stacked products
GB2266768B (en) * 1992-05-08 1996-11-13 Sencon Improvements in and relating to handling apparatus and sensors for them
GB9209992D0 (en) * 1992-05-08 1992-06-24 Sencon Uk Ltd Improvements in and relating to handling apparatus and sensors for them
US5441382A (en) * 1993-01-29 1995-08-15 Fleetwood Systems, Inc. Infeed apparatus for article handling system
US5421700A (en) * 1993-04-29 1995-06-06 Tension Envelope Corporation Envelope flap up pick and place apparatus and method
US20040086370A1 (en) * 2002-10-31 2004-05-06 Randy Golden System and method for stacking a predeterminded number of nestable objects
US6918737B2 (en) * 2002-10-31 2005-07-19 Solo Cup Company System and method for stacking a predetermined number of nestable objects
US7726932B2 (en) * 2004-05-28 2010-06-01 Axium, Inc. Method and tool for the separation of a pile of recipients
ITBO20050582A1 (it) * 2005-09-28 2007-03-29 Marchesini Group Spa Metodo per il prelievo di articoli appiattiti impilati dal fondo aperto di un magazzino e apparecchiatura in grado di attuare tale metodo
JP7189195B2 (ja) * 2017-07-17 2022-12-13 ノルデン・マシーナリー・アーベー カートンスタック分割装置およびスタックを分割するための方法
CN113086929B (zh) * 2021-03-31 2022-08-26 重庆品正食品有限公司 苏打水全自动生产工艺

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US3442186A (en) * 1966-06-18 1969-05-06 Hamada Printing Press Method for automatic sorting
US3878945A (en) * 1973-04-16 1975-04-22 Fleetwood Syst Inc Method and apparatus for counting and packaging can ends
US3962845A (en) * 1973-04-16 1976-06-15 Fleetwood Systems, Inc. Apparatus for counting and packaging can ends
CH588994A5 (fr) * 1975-02-21 1977-06-30 Bobst Fils Sa J
DE3333521C2 (de) * 1983-09-16 1986-06-26 Eberhard 3300 Braunschweig Halle Vorrichtung zum Bilden abgezählter Stöße aus einem vorgeförderten Stapel scheibenförmiger Werkstücke
DE3334769A1 (de) * 1983-09-26 1985-04-11 Karges-Hammer-Maschinen Gmbh & Co Kg, 3300 Braunschweig Transportbehaelter sowie verfahren und vorrichtung zum transportieren von dosendeckelstapeln in dem transportbehaelter
US4537550A (en) * 1983-09-29 1985-08-27 Fleetwood Systems, Inc. Automatic stack developing and loading system
US4742669A (en) * 1986-09-29 1988-05-10 Fleetwood Systems, Inc. Can end counting system

Also Published As

Publication number Publication date
EP0299297A2 (fr) 1989-01-18
US4869359A (en) 1989-09-26
EP0299297A3 (en) 1989-08-30
DE3869499D1 (de) 1992-04-30
DE3722976C1 (de) 1988-08-25
CA1316189C (fr) 1993-04-13

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