EP0170613A2 - Device for separating groups of a given length from a stack of continuously fed objects - Google Patents

Device for separating groups of a given length from a stack of continuously fed objects Download PDF

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Publication number
EP0170613A2
EP0170613A2 EP85810250A EP85810250A EP0170613A2 EP 0170613 A2 EP0170613 A2 EP 0170613A2 EP 85810250 A EP85810250 A EP 85810250A EP 85810250 A EP85810250 A EP 85810250A EP 0170613 A2 EP0170613 A2 EP 0170613A2
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EP
European Patent Office
Prior art keywords
separating
stack
pick
slide
separating elements
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.)
Granted
Application number
EP85810250A
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German (de)
French (fr)
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EP0170613B1 (en
EP0170613A3 (en
Inventor
René Fluck
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Schweizerische Industrie Gesellschaft
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Schweizerische Industrie Gesellschaft
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Publication of EP0170613A2 publication Critical patent/EP0170613A2/en
Publication of EP0170613A3 publication Critical patent/EP0170613A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B23/00—Packaging fragile or shock-sensitive articles other than bottles; Unpacking eggs
    • B65B23/10—Packaging biscuits
    • B65B23/12—Arranging, feeding or orientating the biscuits to be packaged
    • B65B23/14—Forming groups of biscuits

Definitions

  • the present invention relates to a device for separating groups of a certain length from a stack of continuously fed objects according to the preamble of independent patent claim 1.
  • the apperative effort for a relatively simple distance formation is comparatively large. Adjustments to change the number of items per group can only be made with great effort, which can occur daily with changing batches in order to keep the number constant.
  • the upright objects 1 forming a stack 2 are transported on the transport device 4 in the direction of the arrow 3.
  • a vibrator trough can be used as the transport device 4.
  • the moving stack 2 encounters a pick-up slide 26 which is moved uniformly in the current direction by means of the lever 18 and a rod 19 articulated thereon from a first cam plate with a scanning roller, for example on this lever 18.
  • these separating elements 48, 49 are moved, on the one hand, synchronously with the pick-up slide 26 and, in addition, pushed into and pulled out of the stack 2.
  • a retainer 5 with parallelogram rods 63, 64 is pushed in front of the stack 2 in the direction of arrow 7 via the lever 65 rigidly attached to the one parallelogram rod 64 and moved in the direction of arrow 66, so that the separating elements 48, 49 are removed from the objects can be moved out and moved upstream together with the pick-up slide 26, so that the objects cannot move unintentionally.
  • the two drives 61, 62 bring about the movement of the separating elements 48, 49, so that their lower ends describe the lines 58, 59 drawn in broken lines in FIG. 1.
  • the lever 18 swings in the direction of the arrow 20.
  • the rod 19 which is articulated at the end 18 'causes a reciprocating movement of the displacement bar 16 according to the arrow 20 between the two pairs of rollers 17, 17'.
  • the guide head 15 which is integrally connected to the displacement beam 16 is provided with a through hole 15 'parallel to the direction of movement according to arrow 20.
  • a spindle 21 with one end of a left-hand thread and the other end of a right-hand thread is rotatably supported in the center of this bore 15 ′.
  • a flange 22 is attached to the spindle 21 on both sides of the guide head 15.
  • a spindle nut 24, 25 is screwed onto each threaded part.
  • Rotation of the spindle 21 with the rotary knob 23 causes the spindle nuts to be moved towards or away from one another equally.
  • a support plate 27 of triangular shape is also rigidly fastened at one corner 271.
  • One end of the longer lever arm 311 of an angle lever 31 is articulated on the second base corner 272.
  • an elongated plate-shaped separating element carrier 40 is articulated close to one end.
  • the end of the elongated, longer, straight lever arms 301, 303 of a three-armed lever 30 is articulated, from which the third lever arm 302 protrudes vertically.
  • the other end part of the separating element carrier 40 is articulated at a distance from the free end of the lever arm 301.
  • the third lever arm 302 is articulated at its free end to a sliding block 33 guided in a rail 34.
  • the rail 34 mentioned is part of the second drive 61 and is rotatably mounted on the frame with two parallel rods 351, 352.
  • One of these rods 351 is a lever of an angle lever 351, 353, from which the second lever 353 is moved either directly or via a linkage, not shown, by means of a cam disk with a scanning roller.
  • the rail 34 thus executes a circular movement according to arrow 37.
  • This movement is transmitted to the three-armed lever 30 via the sliding block 33, so that the separating element carrier 40 executes an up and down movement by the drive 61 in addition to the back and forth movement by the drive 62.
  • a support beam 60 is fastened to the separating element carrier 40 as a self-supporting element.
  • holding plates 41, 42 are slidably held by means of locking elements 411, 421, for example clamping screws.
  • a support lever 43, 44 is resiliently mounted by means of spring brackets 45.
  • Such spring mounts are known and consist of four rubber pins, in each of the four corner edges of a square recess and the element to be held, here the support levers 43, 44 engage with square spikes between the four rubber pins.
  • the separating elements 48, 49 are connected to the two carrying levers 43, 44 with a pair of tabs 50 arranged parallel to one another.
  • the two pairs of lugs 50 are pretensioned with a tension spring 51 between diagonally arranged pivot pins in such a way that the separating elements 48, 49 are pulled against the corresponding support levers 43, 44.
  • This roller 54 lies on the downstream side of the separating element 48.
  • the two elongated levers 301, 303 of the three-armed lever 30 likewise have such an arrangement in which a rod 55 is held axially displaceably by means of two bolts 305 with a longitudinal slot 304.
  • This rod 55 also has a rotatably mounted roller 56 at its free end. This roller 56 rests on top of a lever 57 which is attached to the separating element 49 and projects in the direction of flow.
  • the tips of the separating elements 48, 49 are equipped in a known manner with rotatably mounted rollers 52.
  • the movement of the stack 2 in the direction of arrow 3 is stopped by the raised retainer 5.
  • the two separating elements 48 and 49 are in their most upstream position above the stack 2.
  • the pick-up slide 26 is also in its upper position immediately behind the retainer 5.
  • the depositing scoop 8 is located just before its upper end position at the time shown and is still moving Direction of arrow 14 'further.
  • the two separated groups 9 'and 10' are now on the further transport device 11 and are held in the separated position by the two rails 12, 13.
  • FIG. 3 shows pick-up slide 26 and the two separating elements 48, 49 in a position located downstream of the starting position according to FIG. 2.
  • the two Separating elements 48, 49 have penetrated stack 2 to a certain amount and the two new groups 9, 10 have been separated at this time. Because the downstream separating element 48 is longer than the other separating element 49, the initial penetration thereof into the stack 2 occurs at different times.
  • FIG. 4 also shows the lowest position downstream of the pick-up slide 26 and separating elements 48, 49.
  • the movement which now begins to lift the separating elements 48, 49 brings the rollers 54, 56 into effect and presses on the separating element 48 and on the lever 57 according to arrows A and B.
  • the lower ends of the separating elements 48, 49 are pressed with their rollers 52 against the current direction 3 and spaces are formed so that the retainer 5 can penetrate and the two groups 9, 10 on both sides of the separating rail 13 can be stored downward to finally reach the position shown in FIG. 2 again.
  • the drives 61, 62, and also the drives for the depositing bucket 8 and the retainer 5 run synchronously and can be driven in a known manner by four cam disks of known type which are held in a rotationally fixed manner on a jointly driven shaft.
  • the support beam 60 could be extended in order to attach further separating elements to it and likewise, with extensions of the rod 55, further separating elements could be pressed against the direction of flow by a small amount.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Special Conveying (AREA)

Abstract

Zur gleichzeitigen Bildung von zwei Gruppen (9, 10) aus demselben Stapel (2) gleichartiger scheibenförmiger Gegenstände in Hochkantlage, sind zwei Trennelemente (48, 49) im Abstand voneinander und im Abstand vom Abholschieber (26) angeordnet. Die Trennelemente (48, 49) stehen gleicherweise mit zwei Antrieben (61, 62) in Wirkverbindung. Der Abstand zwischen dem Abholschieber (26) und dem nächsten stromautwärts befindlichen Trennelement (48) ist einstellbar und der Abstand zwischen den beiden Trennelementen (48, 49) lässt sich auch verändern, so dass die Gruppenlänge auf veränderte Dicken der Gegenstände eingestellt werden kann. Damit lassen sich zwei Gruppen gleichzeitig aus dem Stapel abtrennen und getrennt auf eine Weitertransportvorrichtung (11) ablegen.For the simultaneous formation of two groups (9, 10) from the same stack (2) of identical disk-shaped objects in an upright position, two separating elements (48, 49) are arranged at a distance from one another and at a distance from the pick-up slide (26). The separating elements (48, 49) are also operatively connected to two drives (61, 62). The distance between the pick-up slide (26) and the next separating element (48) located upstream is adjustable and the distance between the two separating elements (48, 49) can also be changed so that the group length can be adjusted to changed thicknesses of the objects. Two groups can thus be separated from the stack at the same time and deposited separately on a further transport device (11).

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Abtrennen von Gruppen bestimmter Länge von einem Stapel kontinuierlich zugeführter Gegenstände gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1.The present invention relates to a device for separating groups of a certain length from a stack of continuously fed objects according to the preamble of independent patent claim 1.

Das Problem des gruppenweisen Verpackens von scheibenförmigen Gegenständen wurde schon mehrfach angegangen. Dabei wird zwischen die hochkant stehenden Gegenstände ein messerartiges oder lanzenförmiges Trennelement eingeführt und am stromabwärtigen Ende befindet sich dann vielfach ein in Stromrichtung beweglicher Schieber, wobei mit dem Abstand zwischen dem Trennelement und dem Schieber die Länge der Gruppe bestimmt wird. Beispiele dafür finden sich in der CH-A 380 635, in der DE-U 72 23 053 und ferner in der US-A 2 954 881.The problem of group-wise packaging of disc-shaped objects has been addressed several times. In this case, a knife-like or lance-shaped separating element is inserted between the upright objects and at the downstream end there is often a slide movable in the current direction, the length of the group determining the distance between the separating element and the slide becomes. Examples of this can be found in CH-A 380 635, in DE-U 72 23 053 and also in US-A 2 954 881.

In der US-A 4 098 392 werden die von einem ersten Förderer kontinuierlich angelieferten Gegenstände durch ein Trennmesser zurückgehalten, während die damit stromabwärts abgeteilten Gegenstände mittels eines Mitnehmers eines zweiten Förderers weitertransportiert werden. Ein paarig zum genannten Mitnehmer angeordneter zweiter Mitnehmer hält dann den vordersten Gegenstand des Stapels im Abstand von der abgezählten Gruppe und bildet den Abholschieber der oben angegebenen anderen Veröffentlichungen. Damit wird eine kontinuierliche Gruppeneinteilung im geradlinigen Transportweg erhalten.In US Pat. No. 4,098,392, the articles continuously delivered by a first conveyor are retained by a separating knife, while the articles separated therewith are transported further by means of a driver of a second conveyor. A second driver arranged in pairs to the driver mentioned then keeps the foremost object of the stack at a distance from the group counted and forms the pick-up slide of the other publications specified above. This ensures a continuous grouping in the straight transport route.

Der apperative Aufwand für eine relativ einfache Abstandsbildung ist vergleichsweise gross. Es lassen sich Verstellungen zur Aenderung der Anzahl Gegenstände pro Gruppe nur mit grossem Aufwand vornehmen, was bei sich ändernden Chargen täglich vorkommen kann, um die Anzahl konstant zu halten.The apperative effort for a relatively simple distance formation is comparatively large. Adjustments to change the number of items per group can only be made with great effort, which can occur daily with changing batches in order to keep the number constant.

Mit neueren Verpackungen ist es oftmals erwünscht, gleichzeitig mehrere Gruppen zu verpacken, wenn beispielsweise Einlegeschachteln mit schlagabsorbierenden Zwischenwänden ausgebildet sind.With newer packaging, it is often desirable to pack several groups at the same time if, for example, insert boxes are formed with impact-absorbing partitions.

Mit keiner in den vorerwähnten Veröffentlichungen dargestellten Gruppierungsanordnungen lassen sich aus nur einem Stapel gleichzeitig mehrere Gruppen abtrennen und ebenfalls gleichzeitig weitergeben.With none of the grouping arrangements shown in the aforementioned publications, several groups can be separated from a single stack at the same time and also passed on simultaneously.

Erfindungsgemäss kann dieses Problem durch die Merkmale im kennzeichnenden Teil des unabhängigen Patentanspruches 1 erreicht werden. In den abhängigen Ansprüchen sind besonders vorteilhafte Ausführungsformen der Erfindung definiert.According to the invention, this problem can be achieved by the features in the characterizing part of independent claim 1. Particularly advantageous embodiments of the invention are defined in the dependent claims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert. Es zeigen:

  • Fig. 1 eine schematische Darstellung einer Vorrichtung nach der Erfindung, ohne die aus der Antriebstechnik bekannten Steuerkurven für die Bewegungssteuerung, und
  • Fig. 2 bis 4 drei verschiedene Phasen beim Betrieb der Vorrichtung nach Fig. 1 beim Abtrennen und bei der Weitergabe von zwei abgetrennten Gruppen.
An embodiment of the invention is explained below with reference to the drawing. Show it:
  • Fig. 1 is a schematic representation of a device according to the invention, without the control curves known from drive technology for motion control, and
  • Fig. 2 to 4 three different phases in the operation of the device of FIG. 1 in the separation and in the transfer of two separated groups.

Die hochkant stehenden, einen Stapel 2 bildenden Gegenstände 1 werden auf der Transporteinrichtung 4 in Richtung des Pfeiles 3 transportiert. Als Transportvorrichtung 4 kann eine Vibratorrinne verwendet sein. Stromabwärts stösst der wandernde Stapel 2 auf einen Abholschieber 26, der mittels des Hebels 18 und einer an diesem angelenkten Stange 19 von einer ersten Kurvenscheibe aus mit einer Abtasterrolle beispielsweise an diesem Hebel 18 gleichmässig in Stromrichtung bewegt wird.The upright objects 1 forming a stack 2 are transported on the transport device 4 in the direction of the arrow 3. A vibrator trough can be used as the transport device 4. Downstream, the moving stack 2 encounters a pick-up slide 26 which is moved uniformly in the current direction by means of the lever 18 and a rod 19 articulated thereon from a first cam plate with a scanning roller, for example on this lever 18.

In bestimmten Abständen stromaufwärts dieses Abholschiebers 26 befinden sich zwei Trennelemente 48, 49, die beispielsweise gabelförmig oder lanzenförmig ausgebildet sein können. Mittels einer zweiten unten zu beschreibenden Einrichtung werden diese Trennelemente 48, 49 einerseits synchron mit dem Abholschieber 26 bewegt und dazu noch in den Stapel 2 hineingestossen und herausgezogen.At certain intervals upstream of this pick-up slide 26 there are two separating elements 48, 49 which can be, for example, fork-shaped or lance-shaped. By means of a second device to be described below, these separating elements 48, 49 are moved, on the one hand, synchronously with the pick-up slide 26 and, in addition, pushed into and pulled out of the stack 2.

Eine Ablegeschaufel 8 mit einer Länge, die derart ist, dass die beiden Gruppen 9 und 10, die zwischen dem Abholschieber 26 und den beiden Trennelementen 48, 49 gebildet sind, bequem darauf Platz finden, gleitet bei ihrer Bewegung gemäss dem Pfeil 14 entlang zweier Trennschienen 12, 13, die sich unterhalb der stromabwärtigen Endlagen des Abholschiebers 26 und des stromabwärtigen Trennelementes 48 befinden, so dass die beiden Gruppen 9 und 10 getrennt voneinander auf die Weitertransportvorrichtung gelangen, wo beispielsweise eine Schachtel gemäss vorgenannter Verpackungsanordnung sein könnte.A depositing scoop 8 with a length such that the two groups 9 and 10, which are formed between the pick-up slide 26 and the two separating elements 48, 49, can comfortably fit thereon, slide along two separating rails during their movement according to the arrow 14 12, 13, which is under are half of the downstream end positions of the pick-up slide 26 and the downstream separating element 48, so that the two groups 9 and 10 arrive separately from each other on the further transport device, where for example a box according to the aforementioned packaging arrangement could be.

Ein Rückhalter 5 mit Parallelogrammstangen 63, 64 wird über den starr an der einen Parallelogrammstange 64 befestigten Hebel 65, der in Richtung des Pfeiles 66 bewegt wird, in Richtung des Pfeiles 7 vor den Stapel 2 gestossen, damit die Trennelemente 48, 49 aus den Gegenständen herausgefahren und zusammen mit dem Abholschieber 26 stromaufwärts bewegt werden können, so dass sich die Gegenstände nicht unbeabsichtigt bewegen können.A retainer 5 with parallelogram rods 63, 64 is pushed in front of the stack 2 in the direction of arrow 7 via the lever 65 rigidly attached to the one parallelogram rod 64 and moved in the direction of arrow 66, so that the separating elements 48, 49 are removed from the objects can be moved out and moved upstream together with the pick-up slide 26, so that the objects cannot move unintentionally.

Die beiden Antriebe 61, 62 bewirken die Bewegung der Trennelemente 48, 49, damit deren untere Enden die in Fig. 1 strichpunktiert gezeichneten Linien 58, 59 beschreiben. Wie schon erwähnt, schwingt der Hebel 18 in Richtung des Pfeiles 20. Die am Ende 18' angelenkte Stange 19 bewirkt eine hin-und hergehende Bewegung des Verschiebebalkens 16 gemäss dem Pfeil 20 zwischen den zwei Rollenpaaren 17, 17'. Der einstückig mit dem Verschiebebalken 16 verbundene Führungskopf 15 ist mit einer Durchgangsbohrung 15' parallel zur Bewegungsrichtung gemäss Pfeil 20 versehen. In dieser Bohrung 15'ist eine Spindel 21 mit einenends einem linksgängigen Gewinde und andernends einem rechtsgängigen Gewinde mittig drehbar gelagert. Zur Verhinderung einer axialen Bewegung der Spindel 21 sind beidseits des Führungskopfes 15 je ein Flansch 22 an der Spindel 21 befestigt. Auf jedem Gewindeteil ist eine Spindelmutter 24, 25 aufgeschraubt.The two drives 61, 62 bring about the movement of the separating elements 48, 49, so that their lower ends describe the lines 58, 59 drawn in broken lines in FIG. 1. As already mentioned, the lever 18 swings in the direction of the arrow 20. The rod 19 which is articulated at the end 18 'causes a reciprocating movement of the displacement bar 16 according to the arrow 20 between the two pairs of rollers 17, 17'. The guide head 15 which is integrally connected to the displacement beam 16 is provided with a through hole 15 'parallel to the direction of movement according to arrow 20. A spindle 21 with one end of a left-hand thread and the other end of a right-hand thread is rotatably supported in the center of this bore 15 ′. To prevent axial movement of the spindle 21, a flange 22 is attached to the spindle 21 on both sides of the guide head 15. A spindle nut 24, 25 is screwed onto each threaded part.

Eine Drehung der Spindel 21 mit dem Drehknopf 23 bewirkt, dass die Spindelmuttern gleicherweise zueinander hin oder voneinander weg bewegt werden.Rotation of the spindle 21 with the rotary knob 23 causes the spindle nuts to be moved towards or away from one another equally.

An der einen Spindelmutter 24, die sich in der Zeichnung Fig. 1 am Ende der Spindel 21 findet, ist der Abholschieber 26 starr befestigt. Dieser Abholschieber 26 wird daher durch den Antrieb 62 hin und her bewegt.On the one spindle nut 24, which can be found in the drawing in FIG. 1 at the end of the spindle 21, the pick-up slide 26 is rigidly attached. This pick-up slide 26 is therefore moved back and forth by the drive 62.

An der zweiten Spindelmutter 25, links an der Spindel 21 in Fig. 1 ist eine Tragplatte 27 von dreieckiger Gestalt bei der einen Ecke 271 ebenfalls starr befestigt. An der zweiten Basisecke 272 ist das eine Ende des längeren Hebelarmes 311 eines Winkelhebels 31 angelenkt. Am Ende des kürzeren Hebelarmes 312 ist ein länglicher plattenförmiger Trennelementräger 40 nahe bei einem Ende angelenkt.On the second spindle nut 25, on the left on the spindle 21 in FIG. 1, a support plate 27 of triangular shape is also rigidly fastened at one corner 271. One end of the longer lever arm 311 of an angle lever 31 is articulated on the second base corner 272. At the end of the shorter lever arm 312, an elongated plate-shaped separating element carrier 40 is articulated close to one end.

An der dritten Ecke 273 der Tragplatte 27 ist das Ende der gestreckt ausgebildeten, längeren, geraden Hebelarme 301, 303 eines dreiarmigen Hebels 30 angelenkt, von dem der dritte Hebelarm 302 senkrecht absteht. Im Abstand vom freien Ende des Hebelarmes 301 ist die andere Endpartie des Trennelementträgers 40 angelenkt. Der dritte Hebelarm 302 ist an seinem freien Ende mit einem in einer Schiene 34 geführten Gleitstein 33 gelenkig verbunden.At the third corner 273 of the support plate 27, the end of the elongated, longer, straight lever arms 301, 303 of a three-armed lever 30 is articulated, from which the third lever arm 302 protrudes vertically. The other end part of the separating element carrier 40 is articulated at a distance from the free end of the lever arm 301. The third lever arm 302 is articulated at its free end to a sliding block 33 guided in a rail 34.

Die genannte Schiene 34 ist Teil des zweiten Antriebes 61 und ist mit zwei parallelen Stangen 351, 352 gestellfest drehbar gelagert. Eine dieser Stangen 351 ist ein Hebel eines Winkelhebels 351, 353, von dem der zweite Hebel 353 durch eine Kurvenscheibe mit Abtasterrolle entweder direkt oder über ein nicht dargestelltes Gestänge bewegt wird. Bei Bewegung des Winkelhebels 35 gemäss Pfeil 354 führt somit die Schiene 34 eine Kreisbewegung gemäss Pfeil 37 aus.The rail 34 mentioned is part of the second drive 61 and is rotatably mounted on the frame with two parallel rods 351, 352. One of these rods 351 is a lever of an angle lever 351, 353, from which the second lever 353 is moved either directly or via a linkage, not shown, by means of a cam disk with a scanning roller. When the angle lever 35 moves according to arrow 354, the rail 34 thus executes a circular movement according to arrow 37.

Ueber den genannten Gleitstein 33 wird diese Bewegung auf den dreiarmigen Hebel 30 übertragen, so dass der Trennelemententräger 40 ausser der Hin- und Herbewegung durch den Antrieb 62 noch eine Auf- und Abbewegung durch den Antrieb 61 ausführt.This movement is transmitted to the three-armed lever 30 via the sliding block 33, so that the separating element carrier 40 executes an up and down movement by the drive 61 in addition to the back and forth movement by the drive 62.

Am Trennelementträger 40 ist ein Trägerbalken 60 als freitragendes Element befestigt. In Längsschlitzen 601, 602 in diesem Trägerbalken 60 sind Halteplatten 41, 42 mittels Feststellelementen 411, 421-z.B. Klemmschrauben verschiebbar gehaltert. An diesen Halteplatten 41, 42 ist je ein Traghebel 43, 44 mittels Federhalterungen 45 federnd gelagert. Solche Federhalterungen sind bekannt und bestehen aus vier Gummizapfen, in jeder der vier Eckkanten einer quadratischen Ausnehmen und das zu halternde Element, hier die Traghebel 43, 44 greifen mit quadratischen Dornen zwischen die vier Gummizapfen hinein. Mit je einem Paar parallel zueinander angeordneten Laschen 50 sind die Trennelemente 48, 49 mit den beiden Traghebeln 43, 44 verbunden. Ueber diese Traghebel 43, 44 lassen sich die Federhalterungen 45 vorspannen, indem an den Halteplatten 41, 42 senkrecht nach unten ragende Anschlagstangen 46 befestigt sind und die Traghebel 43, 44 je eine feststehende Stelleinrichtung 47 mit Gewindestange und Stellmutter tragen.A support beam 60 is fastened to the separating element carrier 40 as a self-supporting element. In longitudinal slots 601, 602 in this support beam 60, holding plates 41, 42 are slidably held by means of locking elements 411, 421, for example clamping screws. On these holding plates 41, 42 a support lever 43, 44 is resiliently mounted by means of spring brackets 45. Such spring mounts are known and consist of four rubber pins, in each of the four corner edges of a square recess and the element to be held, here the support levers 43, 44 engage with square spikes between the four rubber pins. The separating elements 48, 49 are connected to the two carrying levers 43, 44 with a pair of tabs 50 arranged parallel to one another. About this support levers 43, 44, the spring brackets to be tempered 45 by attached 46 to the support plates 41, 42 g bars perpendicularly downwardly projecting Anschla and the support levers 43, 44 each have a fixed adjusting device 47 wear with the threaded rod and nut.

Die beiden Laschenpaare 50 sind mit einer Spannfeder 51 zwischen diagonal angeordneten Drehzapfen derart vorgespannt dass die Trennelemente 48, 49 gegen die entsprechenden Traghebel 43, 44 hin gezogen werden.The two pairs of lugs 50 are pretensioned with a tension spring 51 between diagonally arranged pivot pins in such a way that the separating elements 48, 49 are pulled against the corresponding support levers 43, 44.

Der längere, an der Tragplatte 27 am Lagerbolzen 29 angelenkte Hebelarm 311 des Winkelhebels 31 trägt einen in dessen Längsausdehnung mittels eines Längsschlitzes 313 und zwei Bolzen 314 verschieblich gehalterten Stab 53, der seinerseits an dem über den Hebel 31 hinausragenden Ende eine drehbar gelagerte Rolle 54 trägt. Diese Rolle 54 liegt auf der strcmabwärtigen Seite des Trennelementes 48 an diesem an.The longer lever arm 311 of the angle lever 31, which is articulated on the support plate 27 on the bearing pin 29, carries a rod 53 which is displaceable in its longitudinal extent by means of a longitudinal slot 313 and two bolts 314 and which in turn carries a rotatably mounted roller 54 on the end projecting beyond the lever 31 . This roller 54 lies on the downstream side of the separating element 48.

Die beiden gestreckten Hebel 301, 303 des dreiarmigen Hebels 30 weist ebenfalls eine solche Anordnung auf, bei welchem mit einem Längsschlitz 304 ein Stab 55 mittels zwei Bolzen 305 axialverschieblich gehalten ist. Auch dieser Stab 55 trägt an seinem freien Ende eine drehbar gelagerte Rolle 56. Diese Rolle 56 liegt oben auf einem am Trennelement 49 befestigten in Flussrichtung abstehenden Hebel 57 auf.The two elongated levers 301, 303 of the three-armed lever 30 likewise have such an arrangement in which a rod 55 is held axially displaceably by means of two bolts 305 with a longitudinal slot 304. This rod 55 also has a rotatably mounted roller 56 at its free end. This roller 56 rests on top of a lever 57 which is attached to the separating element 49 and projects in the direction of flow.

Mit diesen Rollen 54, 56 wird auf die beiden Trennelemente 48, 49 eine Kraft entgegen der Flussrichtung ausgeübt, so dass ein Zwischenraum einerseits zwischen der Gruppe 10 und dem Stapel 2 gebildet wird, indem die jeweiligen stromaufwärtigen Gegenstände der Stromrichtung entgegen verschoben werden.With these rollers 54, 56, a force is exerted on the two separating elements 48, 49 against the direction of flow, so that an intermediate space is formed on the one hand between the group 10 and the stack 2 by the respective upstream objects being shifted in the opposite direction to the current.

Damit beim Anheben und Absenken der Trennelemente 48, 49 keine Beschädigung an den anliegenden Gegenständen entstehen können, sind die Spitzen der Trennelemente 48, 49 in bekannter Weise mit drehbar gelagerten Rollen 52 ausgerüstet.So that no damage can occur to the adjacent objects when lifting and lowering the separating elements 48, 49, the tips of the separating elements 48, 49 are equipped in a known manner with rotatably mounted rollers 52.

Die Betriebsweise dieser Vorrichtung wird nachfolgend mit Bezug auf Fig. 2 bis 4 beschrieben.The operation of this device is described below with reference to FIGS. 2 to 4.

In Fig. 2 wird die Bewegung des Stapels 2 in Richtung des Pfeils 3 durch den angehobenen Rückhalter 5 aufgehalten. Die beiden Trennelemente 48 und 49 befinden sich in ihrer stromaufwärtigsten Stellung über dem Stapel 2. Auch der Abholschieber 26 ist in seiner oberen Lage unmittelbar hinter dem Rückhalter 5. Die Ablegeschaufel 8 befindet sich im dargestellten Zeitpunkt kurz vor ihrer oberen Endlage und bewegt sich noch in Richtung des Pfeiles 14' weiter. Die beiden abgetrennten Gruppen 9' und 10' liegen nun auf der Weitertransportvorrichtung 11 und werden durch die beiden Schienen 12, 13 in der getrennten Lage gehalten.2, the movement of the stack 2 in the direction of arrow 3 is stopped by the raised retainer 5. The two separating elements 48 and 49 are in their most upstream position above the stack 2. The pick-up slide 26 is also in its upper position immediately behind the retainer 5. The depositing scoop 8 is located just before its upper end position at the time shown and is still moving Direction of arrow 14 'further. The two separated groups 9 'and 10' are now on the further transport device 11 and are held in the separated position by the two rails 12, 13.

Die spätere Phase gemäss Fig. 3 zeigt Abholschieber 26 und die beiden Trennelemente 48, 49 in einer stromabwärts der Ausgangslage gemäss Fig. 2 befindlichen Stellung. Die beiden Trennelemente 48, 49 sind zu einem bestimmten Betrag in den Stapel 2 eingedrungen und es sind zu dieser Zeit die beiden neuen Gruppen 9, 10 abgetrennt. Dadurch, dass das stromabwärtige Trennelement 48 länger ist als das andere Trennelement 49, geschieht das anfängliche Eindringen derselben in den Stapel 2 zu unterschiedlichen Zeiten.3 shows pick-up slide 26 and the two separating elements 48, 49 in a position located downstream of the starting position according to FIG. 2. The two Separating elements 48, 49 have penetrated stack 2 to a certain amount and the two new groups 9, 10 have been separated at this time. Because the downstream separating element 48 is longer than the other separating element 49, the initial penetration thereof into the stack 2 occurs at different times.

chlieslich zeigt noch Fig. 4 die stromabwärts unterste Lage von Abholschieber 26 und Trennelementen 48, 49. Durch die nun einsetzende Bewegung zum Herausheben der Trennelemente 48, 49 kommen die Rollen 54, 56 zur Wirkung und drücken auf das Trennelement 48 und auf den Hebel 57 gemäss den Pfeilen A und B. Damit werden die unteren Enden der Trennelemente 48, 49 mit ihren Rollen 52 gegen die Stromrichtung 3 gedrückt und es bilden sich Zwischenräume, so dass der Rückhalter 5 eindringen kann und die beiden Gruppen 9, 10 beidseits der Trennschiene 13 nach unten abgelegt werden können, um schliesslich wieder die Stellung gemäss Fig. 2 zu erreichen.Finally, FIG. 4 also shows the lowest position downstream of the pick-up slide 26 and separating elements 48, 49. The movement which now begins to lift the separating elements 48, 49 brings the rollers 54, 56 into effect and presses on the separating element 48 and on the lever 57 according to arrows A and B. Thus, the lower ends of the separating elements 48, 49 are pressed with their rollers 52 against the current direction 3 and spaces are formed so that the retainer 5 can penetrate and the two groups 9, 10 on both sides of the separating rail 13 can be stored downward to finally reach the position shown in FIG. 2 again.

Die Antriebe 61, 62, ferner die Antriebe für Ablegeschaufel 8 und Rückhalter 5 laufen synchron und können in bekannter Weise durch vier auf einer gemeinsam angetriebenen Welle drehfest gehalteten Kurvenscheiben bekannter Bauart angetrieben sein.The drives 61, 62, and also the drives for the depositing bucket 8 and the retainer 5 run synchronously and can be driven in a known manner by four cam disks of known type which are held in a rotationally fixed manner on a jointly driven shaft.

Selbstverständlich könnte der Trägerbalken 60 verlängert werden, um an ihm noch weitere Trennelemente zu befestigen und ebenso könnten mit Verlangerungen des Stabes 55 weitere Trennelemente um einen geringen Betrag entgegen der Flussrichtung gedrückt werden.Of course, the support beam 60 could be extended in order to attach further separating elements to it and likewise, with extensions of the rod 55, further separating elements could be pressed against the direction of flow by a small amount.

Claims (7)

1. Vorrichtung zum Abtrennen von Gruppen bestimmter Länge von einem Stapel scheibenförmiger, hochkant stehender und kontinuierlich zugeführter Gegenstände , insbesondere Biskuits, wobei die Länge der Gruppe durch den Abstand zwischen einem, zwischen zwei sich folgenden Gegenständen einbringbaren Trennelement (48) und einem in Stromrichtung bewegbaren, am stromabwärtigen Ende der jeweiligen Gruppe befindlichen Abholschieber (26) bestimmt ist und mit einer Ab- legeschaufel (8) für die Uebergabe der Gruppe an eine weitere Transporteinrichtung (11), gekennzeichnet durch eine Anordnung mit wenigstens zwei Trennelementen (48, 49) zur gleichzeitigen Bildung von wenigstens zwei Gruppen (9, 10) aus Gegenständen desselben Stapels (2) mit wenigstens angenähert gleichen Abständen, einerseits zwischen den Trennelementen (48, 49) selbst und anderseits zwischen dem stromabwärtigsten Trennelement (48) und dem Abholschieber (26) und durch Mittel (12, 13) bei der Ablegeschaufel (8) um wenigstens die abgetrennte Gruppe (9, 10) getrennt von der anderen weiterzugeben.1. An apparatus for separating a stack of disk-shaped groups of specific length, vertically standing and continuously fed articles, in particular B iskuits, wherein the length of the group by the distance between a between two successive objects insertable separating element (48) and one in the flow direction movable, located at the downstream end of the respective group pick-up slider (26) is determined, and with a waste le g eschaufel (8) for the transfer of the group to a further transport means (11), characterized by an arrangement with at least two separating elements (48, 49) for the simultaneous formation of at least two groups (9, 10) from objects of the same stack (2) with at least approximately the same distances, on the one hand between the separating elements (48, 49) itself and on the other hand between the most downstream separating element (48) and the pick-up slide (26) and by means (12, 13) in the depositing scoop (8) in order to pass on at least the separated group (9, 10) separately from the other . 2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass ein Rückhalteelement (5) zur Stauung des Stapels (2) im Bereich des stromaufwärtigsten Trennelementes (49) angeordnet ist.2. Device according to claim 1, characterized in that a retaining element (5) for stowing the stack (2) is arranged in the region of the upstream separating element (49). 3. Vorrichtung nach Patentanspruch 2, dadurch gekennzeichnet, dass das stromabwtrtigste Trennelement (48) länger als wenigstens das letzte stromaufwärtige Trennelement (49) ausgebildet ist.3. Device according to claim 2, characterized in that the most downstream separating element (48) is longer than at least the last upstream separating element (49). 4. Vorrichtung nach Patentanspruch 3, dadurch gekennzeichnet, dass die Trennelemente (48, 49) je für sich an einem gemeinsamen Trägerbalken (60) mittels Federhalterungen (45) begrenzt drehbar befestigt sind, und ferner gekennzeichnet durch zwei auf den Trägerbalken (60) einwirkende Antriebe (61, 62) zum gleichzeitigen Auf- oder Ab und Hin- oder Herbewegen der Trennelemente (48, 49).4. Device according to claim 3, characterized in that the separating elements (48, 49) are each rotatably fastened to a common support beam (60) by means of spring holders (45), and further characterized by two acting on the support beam (60) drives (61, 62) for simultaneously up or down and H domestic or reciprocating the cutting elements (48, 49). 5. Vorrichtung nach Patentanspruch 4, gekennzeichnet durch Mittel-(21, 23, 24, 25) zur Veränderung des genannten Abstandes wenigstens zwischen dem Abholschieber (26) und dem stromabwärtigsten Trennelement (48).5. The device according to claim 4, characterized by means (21, 23, 24, 25) for changing said distance at least between the pick-up slide (26) and the most downstream separating element (48). 6. Vorrichtung nach Patentanspruch 5, dadurch gekennzeichnet, dass die genannten Mittel zur Veränderung der Abstände eine in einem Führungskopf (15) eines in Rollen (17) geführten Verschiebebalkens (16) drehbar gehalterte, endseits sich gegengerichtete Steigungen aufweisende Spindel (21) umfassen, und dass der Abholschieber (26) starr mit einer ersten Spindelmutter (24) und der Trägerbalken.(60) gelenkig über einen Hebel (30) mit einem starr an der zweiten Spindelmutter (25) befestigten Tragelement (27) verbunden sind.6. The device according to claim 5, characterized in that the said means for changing the distances comprise a spindle (21) which is rotatably held in a guide head (15) of a displacement bar (16) guided in rollers (17) and has inclinations which are opposite at the ends, and that the pick-up slide (26) is rigidly connected to a first spindle nut (24) and the support beam (60) is connected in an articulated manner via a lever (30) to a support element (27) rigidly fastened to the second spindle nut (25). 7. Vorrichtung nach Patentanspruch 6, dadurch gekennzeichnet, dass einzeln auf die Trennelemente (48, 49) wenigstens angenähert in ihrem tiefsten Eindringpunkt zwischen den Gegenständen einwirkende Stosseinrichtungen (31, 53, 54, 55, 56, 57) vorhanden sind, um den Trennelementen (48, 49) eine begrenzte stromaufwärtige Bewegung zu erteilen.7. Device according to claim 6, characterized in that individually on the separating elements (48, 49) at least approximately in their deepest point of penetration between the objects acting impact devices (31, 53, 54, 55, 56, 57) are present around the separating elements (48, 49) to give limited upstream movement.
EP85810250A 1984-07-31 1985-05-30 Device for separating groups of a given length from a stack of continuously fed objects Expired EP0170613B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3704/84A CH664127A5 (en) 1984-07-31 1984-07-31 DEVICE FOR SEPARATING GROUPS OF A SPECIFIC LENGTH FROM A STACK OF CONTINUOUSLY SUPPLIED ITEMS.
CH3704/84 1984-07-31

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EP0170613A2 true EP0170613A2 (en) 1986-02-05
EP0170613A3 EP0170613A3 (en) 1987-04-15
EP0170613B1 EP0170613B1 (en) 1988-11-23

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EP (1) EP0170613B1 (en)
CH (1) CH664127A5 (en)
DE (1) DE3566379D1 (en)

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Also Published As

Publication number Publication date
EP0170613B1 (en) 1988-11-23
DE3566379D1 (en) 1988-12-29
EP0170613A3 (en) 1987-04-15
CH664127A5 (en) 1988-02-15
US4611705A (en) 1986-09-16

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