EP0348730A1 - Use of a known device for shifting components - Google Patents

Use of a known device for shifting components Download PDF

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Publication number
EP0348730A1
EP0348730A1 EP89110732A EP89110732A EP0348730A1 EP 0348730 A1 EP0348730 A1 EP 0348730A1 EP 89110732 A EP89110732 A EP 89110732A EP 89110732 A EP89110732 A EP 89110732A EP 0348730 A1 EP0348730 A1 EP 0348730A1
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EP
European Patent Office
Prior art keywords
piston
cylinder
driver
sliding piece
stack
Prior art date
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Granted
Application number
EP89110732A
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German (de)
French (fr)
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EP0348730B1 (en
Inventor
Martin Dipl.-Ing. Blümle
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
    • B65H1/025—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge with controlled positively-acting mechanical devices for advancing the pile to present the articles to the separating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/084—Characterised by the construction of the motor unit the motor being of the rodless piston type, e.g. with cable, belt or chain

Definitions

  • the invention relates to a device for moving parts and in particular for moving a stack consisting of envelopes to be packed from a storage device to a packaging station with the aid of a rodless cylinder, the compressed air supply channels. Seals and pulleys in its head pieces and a traction device that connects the piston with a driver for a sliding piece.
  • a device of the type mentioned is known from German utility model 86 32 668. To move the stack out of the area of the depositing device, the sliding piece is moved very quickly, for which purpose a corresponding actuation of the piston in the rodless cylinder takes place via the connected pressure line. It has now been shown that the time available is too short when the individually arriving envelopes are deposited device can be turned off extremely quickly.
  • the invention is therefore based on the object of designing a device of the type mentioned so that, even with extremely short cycle times of the depositing device, it is able to push one end of the stack out of the area of the depositing device.
  • the invention provides that the piston in the rodless cylinder is at the beginning of its working stroke with the formation of a pressure chamber at a distance from the associated head piece.
  • the pressure chamber between the piston and the head piece is filled with an expandable pressure medium such as e.g. Compressed air filled with the result that the piston can move extremely quickly at the beginning of the working stroke.
  • the piston is fixed in position in the starting position by means of a braking device and, due to the pressure prevailing in the pressure chamber, can only move when the braking device is released. Its speed at the start of the working stroke therefore no longer depends on the compressed air supply, but is derived from the size of the expandable compressed air volume enclosed in the pressure chamber between the head piece and the piston.
  • a device 1 for packaging envelopes 2 in boxes 3, cardboard boxes and the like comprises a machine frame 4, a depositing device 5 for individually arriving envelopes 2, a stacking section 6, a filling or boxing station 7 for filling the envelopes 2 into the boxes 3 and drive devices for the moving parts.
  • the depositing device 5 places the individually arriving envelopes 2 at one end of the stacking section 6 on a table top 8.
  • the stacking section 6 can have brushes (not shown in FIG. 1) which are arranged parallel to one another and laterally next to a slot 11 which is located in the table top 8 is located.
  • the two brushes hold the envelopes 2 after they have been set down and prevent them from falling over.
  • the envelopes 2 automatically migrate between the brushes in accordance with the depositing process away from the depositing device 5.
  • the two brushes have only a limited length in the longitudinal direction of the stack.
  • a stack support 13 guided freely displaceably and acted upon by a constant force towards the depositing device 5 holds the envelopes emerging between the brushes.
  • This stack support 13 is arranged on a carriage 14 which is on the underside of the Table top 8 is displaceable in the longitudinal direction of the slot 11, the stack support 13 reaching through the slot 11.
  • a freely suspended weight 15 is provided as the force that keeps the stack support 13 constant and engages with a cable 17 guided around a deflection roller 16 on the slide 14. Furthermore, the device 1 has a sliding piece 18 which can be moved along the table top 8 and which approaches the stack 12 as soon as it has a preselected size. When a precisely defined number of envelopes 2 is placed on the table top 8 by the depositing device 5 the sliding piece 18 moves the stack 12 against the resistance of the stack support 13 acted upon by the weight 15 to the filling or nesting station 7 (FIG. 1).
  • the sliding piece 18 is movable with the aid of a piston-cylinder device 19.
  • This piston-cylinder device 19 is located on the underside of the table top 8.
  • the cylinder of this piston-cylinder device 19 is a rodless cylinder or a slotted packing cylinder 20.
  • Controlled throttle valves 21 are arranged in the compressed air line 22 leading to the slotted cylinder 20 and are controlled such that the sliding piece 18 with the sliding piece end of the stack 12 leaves the depositing area within the cycle time of the depositing device 5, ie very quickly, whereupon the sliding piece 18 also lower, ie usual speed, moves the stack 12 to the filling or nesting station 7.
  • a stationary stack support 23 and, for example, a holding part 24 which is pivotably mounted, retractable and adjustable in the table top 8 take over the compressed stack 12 between them such that a carton 3 or a box 3 are pushed onto the stack 12 in a manner not of interest here can.
  • the movable stack support 13 and the sliding piece 18 first lower together under the table top 8 and then move back to their starting position in the region of the stacking section 6.
  • the stack support 13 moves back under the filling or nesting station 7 and the sliding piece 18 moves under the newly forming stack 12 into a waiting position according to FIG. up to the stack 12.
  • the stack support 13 and the sliding piece 18 are in the area of the stacking section 6 or in front of the depositing device 5, they reach up again through the slot 11 of the table top 8.
  • the entire piston-cylinder device 19 is correspondingly lowered and raised. This is done with the aid of a lifting device 25 e.g. in the form of another piston-cylinder device.
  • the piston-cylinder device 19 used to move the sliding piece 18 comprises the cylinder 20 already mentioned above, which has a cylinder bore 26 and a rodless piston 27 and two end pieces 28, 29 arranged on the end face with deflection rollers 30.
  • Parallel to the cylinder bore 26 extends a guide 31, for example C-shaped in cross section, for a driver 32, which is connected to the piston 27 via a traction means or belts 33, 34 which run over the deflection rollers 30.
  • compressed air supply ducts 35 and passage openings 36 with seals 37 for the bands 33, 34 are also located in the head pieces 28, 29.
  • One traction means or belt 33 extends from the driver 32 guided in the guide 31 via the left deflection roller 30 (FIG. 2) to the piston 27.
  • the other belt 34 extends from the driver 32 via the right deflection roller 30 to the piston 27 Both belts 33 and 34 penetrate through openings 36 and 37 in front of and behind deflection rollers 30 before they enter the interior of cylinder bore 26.
  • the interior of the cylinder bore 26 is connected via the compressed air supply channels 35 to the throttle valves 21 or throttle check valves 21 and a control valve 38 or a control device 38 (FIG. 1) via suitable lines and connected to a compressed air supply, not shown in the figures.
  • the traction means or belts 33 and 34 arranged between the piston 27 and the driver 32 are of different lengths.
  • the band 33 is longer than the band 34.
  • This pressure chamber is part of the cylinder bore 26 and has a correspondingly large cross section and a large volume compared to the cross section and volume of the compressed air supply channel 35 in the associated head piece 28.
  • a very large compressed air cushion therefore acts on the piston 27 and leads to that this very quickly low from its rest position in the cylinder chamber half 40 Pressure can move.
  • the movement of the driver 32 which is connected to the piston 27 via the belts 33, 34 and which carries the sliding piece 18 as shown in FIGS. 3 and 4, is correspondingly rapid.
  • the driver 32 is only shown in principle in FIG. 2. Details of the driver 32 can be seen in FIGS. 3 and 4.
  • the driver 32 has a controlled braking device 41.
  • This braking device 41 preferably works with compressed air and is supplied with compressed air or brake air via a connecting piece 42 (FIG. 2) on the driver 32 and lines (not shown).
  • the driver 32 consists of a part 43 protruding from the U-shaped guide 31, which serves as a carrier for the sliding piece 18, and of parts which are located inside the guide 31.
  • These parts include a center piece 44 and side pieces 45 arranged symmetrically and in mirror image thereof, which have a plurality of radially extending bores 46 on the outside.
  • Part 43, middle piece 44 and the side pieces 45 are firmly connected to one another by means of connecting elements, not shown.
  • the holes 46 lead to at least one centrally arranged channel 47, which is connected in a manner not shown to the connector 43 (Fig. 2).
  • the cylinder 20 has side walls 50, 51 with longitudinal guide grooves 52, in which arms 53 of the driver 32 are guided with rollers 54.
  • sensors 55, 56 which are arranged on the driver 32 or its sliding piece 18 (FIG. 3) or on the machine frame 4.
  • a further sliding piece 18a according to FIG. 4 has four separating fingers 57 standing next to one another, the two outer separating fingers 57 in one Guide 58 on the two inner separating fingers 57 are adjustable and lockable.
  • support tubes 59 are arranged laterally next to the cylinder 20 and serve as supports for trestles 60 and one linear guide 61 each.
  • the sliding piece 18a also includes an angle piece 62 with guide bushes 63 which slide on the linear guides 61.
  • the angle piece 62 is finally expediently connected to the part 43 of the driver 32, as can be seen in detail from FIG. 4.
  • the cylinder 20 is longer than the working stroke.
  • the invention is not limited to such an embodiment, because additions and modifications are possible within the scope of the inventive concept.
  • a separate pressure chamber for the piston 27 can also be provided independently of the cylinder 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Manipulator (AREA)
  • Special Conveying (AREA)
  • Packaging Of Special Articles (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Abstract

The invention relates to a device for shifting components, and in particular for shifting a stack, comprising covers to be packaged, from a delivery device to a packaging station with the aid of a cylinder, having no piston rod, which possesses compressed air supply ducts, seals and deflection rollers in its head pieces, together with a tensioning means which connects the piston to a dog for a slide. The essence of the invention resides in the fact that the piston, at the start of its working stroke, stands at the pressure side of a pressure chamber. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Verschieben von Teilen und insbesondere zum Verschieben eines aus zu verpackenden Briefhüllenbestehenden Stapels von einer Ablegevorrichtung zu einer Verpackungsstation mit Hilfe eines kolbenstangenlosen Zylinders, der Druckluftver­sorgungskanäle. Dichtungen und Umlenkrollen in seinen Kopf­stücken sowie ein Zugmittel aufweist, das den Kolben mit einem Mitnehmer für ein Schiebestück verbindet.The invention relates to a device for moving parts and in particular for moving a stack consisting of envelopes to be packed from a storage device to a packaging station with the aid of a rodless cylinder, the compressed air supply channels. Seals and pulleys in its head pieces and a traction device that connects the piston with a driver for a sliding piece.

Eine Vorrichtung der genannten Art ist aus dem deutschen Gebrauchsmuster 86 32 668 bekannt. Zum Herausfahren des Stapels aus dem Bereich der Ablegevorrichtung wird das Schiebestück sehr rasch bewegt, wozu eine entsprechende Ansteuerung des Kolbens im kolbenstangenlosen Zylinder über die angeschlossene Druckleitung erfolgt. Es hat sich nun gezeigt, daß die zur Verfügung stehende Zeit zu gering ist, wenn die einzeln ankommenden Briefhüllen von der Ablege­ vorrichtung extrem rasch abgestellt werden. Der Er­findung liegt daher die Aufgabe zugrunde, eine Vor­richtung der genannten Art so zu gestalten, daß sie auch bei extrem kurzen Taktzeiten der Ablegevorrichtung in der Lage ist, das eine Ende des Stapels aus dem Be­reich der Ablegevorrichtung herauszuschieben.A device of the type mentioned is known from German utility model 86 32 668. To move the stack out of the area of the depositing device, the sliding piece is moved very quickly, for which purpose a corresponding actuation of the piston in the rodless cylinder takes place via the connected pressure line. It has now been shown that the time available is too short when the individually arriving envelopes are deposited device can be turned off extremely quickly. The invention is therefore based on the object of designing a device of the type mentioned so that, even with extremely short cycle times of the depositing device, it is able to push one end of the stack out of the area of the depositing device.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß der Kolben im kolbenstangenlosen Zylinder zu Beginn seines Arbeitshubes unter Bildung einer Druckkammer im Abstand von dem ihm zugehörigen Kopfstück steht.To achieve this object, the invention provides that the piston in the rodless cylinder is at the beginning of its working stroke with the formation of a pressure chamber at a distance from the associated head piece.

Die zwischen Kolben und Kopfstück befindliche Druck­kammer ist zu Beginn des Arbeitshubes mit einem expansionsfähigen Druckmedium wie z.B. Druckluft ge­füllt mit der Folge, daß sich der Kolben zu Beginn des Arbeitshubes extrem rasch bewegen kann. Der Kolben wird mittels einer Bremseinrichtung in der Startposition lage­mäßig fixiert und kann sich aufgrund des in der Druck­kammer herrschenden Druckes erst bewegen, wenn die Brems­einrichtung gelöst wird. Seine Geschwindigkeit zu Beginn des Arbeitshubes hängt somit nicht mehr von der Druck­luftversorgung ab, sondern sie leitet sich von der Größe des in der Druckkammer zwischen dem Kopfstück und dem Kolben eingeschlossenen, expansionsfähigen Druckluft­volumens her. Dieses wesentlich größere Volumen bewirkt einen Schnellstart des Kolbens zu Beginn seines Arbeits­hubes im Vergleich zu einer Kolbenbewegung vom unmittel­baren Ende des zugehörigen Kopfstückes aus und führt im Ergebnis dazu, daß der vom Kolben gezogene Mitnehmer und das an diesem befestigte Schiebestück den Stapel sehr rasch aus dem Wirkbereich der Ablegevorrichtung heraus­schieben.The pressure chamber between the piston and the head piece is filled with an expandable pressure medium such as e.g. Compressed air filled with the result that the piston can move extremely quickly at the beginning of the working stroke. The piston is fixed in position in the starting position by means of a braking device and, due to the pressure prevailing in the pressure chamber, can only move when the braking device is released. Its speed at the start of the working stroke therefore no longer depends on the compressed air supply, but is derived from the size of the expandable compressed air volume enclosed in the pressure chamber between the head piece and the piston. This much larger volume causes a quick start of the piston at the beginning of its working stroke compared to a piston movement from the immediate end of the associated head piece and, as a result, leads to the fact that the driver pulled by the piston and the sliding piece attached to it remove the stack very quickly from the effective range push out the storage device.

Weitere Merkmale der Erfindung gehen aus der Beschreibung und Unteransprüchen im Zusammenhang mit der Zeichnung hervor.Further features of the invention emerge from the description and subclaims in connection with the drawing.

Die Erfindung wird nachstehend anhand eines Ausführungs­beispieles, das in der Zeichnung dargestellt ist, näher beschrieben. Dabei zeigen:

  • Fig. 1: eine Seitenansicht einer Vorrichtung zum Verpacken von Umschlägen;
  • Fig. 2: in größerem Maßstab einen Schnitt durch einen′kolbenstangenlosen Zylinder in größerem Maßstab;
  • Fig. 3: einen Schnitt durch den kolbenstangen­losen Zylinder mit einem ersten Schiebestück in nochmals größerem Maßstab und
  • Fig. 4: einen Schnitt durch den kolbenstangen­losen Zylinder in Fig. 3 mit einem anderen Schiebestück.
The invention is described below with reference to an embodiment shown in the drawing. Show:
  • 1: a side view of a device for packaging envelopes;
  • Fig. 2: on a larger scale, a section through a rodless cylinder on a larger scale;
  • Fig. 3: a section through the rodless cylinder with a first sliding piece on an even larger scale and
  • Fig. 4: a section through the rodless cylinder in Fig. 3 with another sliding piece.

Eine Vorrichtung 1 zum Verpacken von Umschlägen 2 in Kartons 3, Pappschachteln und dgl. umfaßt ein Maschinen­gestell 4, eine Ablegevorrichtung 5 für einzeln an­kommende Umschläge 2, eine Stapelstrecke 6, eine Ein­füll- bzw. Einschachtelstation 7 zum Einfüllen der Umschläge 2 in die Kartons 3 sowie Antriebsvorrichtungen für die sich bewegenden Teile.A device 1 for packaging envelopes 2 in boxes 3, cardboard boxes and the like comprises a machine frame 4, a depositing device 5 for individually arriving envelopes 2, a stacking section 6, a filling or boxing station 7 for filling the envelopes 2 into the boxes 3 and drive devices for the moving parts.

Die Ablegevorrichtung 5 stellt die einzeln ankommenden Umschläge 2 am einen Ende der Stapelstrecke 6 auf eine Tischplatte 8. In diesem Bereich kann die Stapelstrecke 6 in Figur 1 nicht dargestellte Bürsten aufweisen, die parallel zueinander sowie seitlich neben einem Schlitz 11 angeordnet sind, der sich in der Tischplatte 8 befindet. Die beiden Bürsten halten die Umschläge 2 nach dem Ab­stellen und verhindern, daß sie umfallen. Ferner wandern die Umschläge 2 selbsttätig zwischen den Bürsten ent­sprechend dem Ablegevorgang von der Ablegevorrichtung 5 weg.The depositing device 5 places the individually arriving envelopes 2 at one end of the stacking section 6 on a table top 8. In this area, the stacking section 6 can have brushes (not shown in FIG. 1) which are arranged parallel to one another and laterally next to a slot 11 which is located in the table top 8 is located. The two brushes hold the envelopes 2 after they have been set down and prevent them from falling over. Furthermore, the envelopes 2 automatically migrate between the brushes in accordance with the depositing process away from the depositing device 5.

Die beiden Bürsten besitzen in Stapellängsrichtung nur eine begrenzte Länge. Sobald der Stapel 12 länger als die Bürsten ist, hält eine frei verschiebbar geführte und von einer konstanten Kraft zur Ablegevorrichtung 5 hin beaufschlagte Stapelstütze 13 die zwischen den Bürsten heraustretenden Umschläge 2. Diese Stapelstütze 13 ist an einem Schlitten 14 angeordnet, der auf der Unterseite der Tischplatte 8 in Längsrichtung des Schlitzes 11 ver­schiebbar ist, wobei die Stapelstütze 13 durch den Schlitz 11 greift.The two brushes have only a limited length in the longitudinal direction of the stack. As soon as the stack 12 is longer than the brushes, a stack support 13 guided freely displaceably and acted upon by a constant force towards the depositing device 5 holds the envelopes emerging between the brushes. This stack support 13 is arranged on a carriage 14 which is on the underside of the Table top 8 is displaceable in the longitudinal direction of the slot 11, the stack support 13 reaching through the slot 11.

Als die Stapelstütze 13 konstant haltende Kraft ist ein freihängendes Gewicht 15 vorgesehen und greift mit einem um eine Umlenkrolle 16 geführten Seil 17 an dem Schlitten 14 an. Ferner weist die Vorrichtung 1 ein längs der Tisch­platte 8 verschiebbares Schiebestück 18 auf, das an den Stapel 12 heranfährt, sobald er eine vorgewählte Größe besitzt. Wenn nämlich eine genau definierte Zahl Umschläge 2 von der Ablegevorrichtung 5 auf die Tischplatte 8 gestellt wurde, verschiebt das Schiebestück 18 den Stapel 12 gegen den Widerstand der von dem Gewicht 15 beauf­schlagten Stapelstütze 13 zur Einfüll- bzw. Ein­schachtelstation 7 (Fig. 1).A freely suspended weight 15 is provided as the force that keeps the stack support 13 constant and engages with a cable 17 guided around a deflection roller 16 on the slide 14. Furthermore, the device 1 has a sliding piece 18 which can be moved along the table top 8 and which approaches the stack 12 as soon as it has a preselected size. When a precisely defined number of envelopes 2 is placed on the table top 8 by the depositing device 5 the sliding piece 18 moves the stack 12 against the resistance of the stack support 13 acted upon by the weight 15 to the filling or nesting station 7 (FIG. 1).

Das Schiebestück 18 ist mit Hilfe einer Kolben-­Zylindereinrichtung 19 bewegbar. Diese Kolben-­Zylindereinrichtung 19 befindet sich auf der Unter­seite der Tischplatte 8. Der Zylinder dieser Kolben-­Zylindereinrichtung 19 ist ein kolbenstangenloser Zylinder bzw. ein geschlitzter Packzylinder 20.The sliding piece 18 is movable with the aid of a piston-cylinder device 19. This piston-cylinder device 19 is located on the underside of the table top 8. The cylinder of this piston-cylinder device 19 is a rodless cylinder or a slotted packing cylinder 20.

Gesteuerte Drosselventile 21 sind in der zum ge­schlitzten Zylinder 20 führenden Druckluftleitung 22 angeordnet und werden derart angesteuert, daß das Schiebestück 18 mit dem schiebestückseitigen Ende des Stapels 12 innerhalb der Taktzeit der Ablegevorrichtung 5, d.h. also sehr schnell den Ablegebereich verläßt, woraufhin das Schiebestück 18 mit geringerer, d.h. üblicher Geschwindigkeit den Stapel 12 zur Einfüll- bzw. Einschachtelstation 7 verschiebt. Dort übernehmen eine stationäre Stapelstütze 23 und z.B. ein in der Tischplatte 8 verschwenkbar gelagertes, versenkbares sowie verstellbares Halteteil 24 den komprimierten Stapel 12 derart zwischen sich, daß ein Karton 3 bzw. eine Schachtel 3 in hier nicht näher interessierender Weise auf den Stapel 12 aufgeschoben werden kann. Für den Rückhub senken sich die bewegliche Stapelstütze 13 und das Schiebestück 18 zunächst gemeinsam unter die Tischplatte 8 ab und bewegen sich sodann in ihre Aus­gangsposition im Bereich der Stapelstrecke 6 zurück.Controlled throttle valves 21 are arranged in the compressed air line 22 leading to the slotted cylinder 20 and are controlled such that the sliding piece 18 with the sliding piece end of the stack 12 leaves the depositing area within the cycle time of the depositing device 5, ie very quickly, whereupon the sliding piece 18 also lower, ie usual speed, moves the stack 12 to the filling or nesting station 7. There, a stationary stack support 23 and, for example, a holding part 24 which is pivotably mounted, retractable and adjustable in the table top 8, take over the compressed stack 12 between them such that a carton 3 or a box 3 are pushed onto the stack 12 in a manner not of interest here can. For the return stroke, the movable stack support 13 and the sliding piece 18 first lower together under the table top 8 and then move back to their starting position in the region of the stacking section 6.

Die Stapelstütze 13 fährt dabei unter der Einfüll- bzw. Einschachtelstation 7 zurück und das Schiebe­stück 18 bewegt sich unter dem sich neu bildenden Stapel 12 bis in eine Warteposition gemäß Fig. 1, d.h. bis vor den Stapel 12. Wenn sich die Stapelstütze 13 und das Schiebestück 18 im Bereich der Stapelstrecke 6 bzw. vor der Ablegevorrichtung 5 befinden, greifen sie wieder durch den Schlitz 11 der Tischplatte 8 nach oben.The stack support 13 moves back under the filling or nesting station 7 and the sliding piece 18 moves under the newly forming stack 12 into a waiting position according to FIG. up to the stack 12. When the stack support 13 and the sliding piece 18 are in the area of the stacking section 6 or in front of the depositing device 5, they reach up again through the slot 11 of the table top 8.

Um die vordere Stapelstütze 13 und das Schiebestück 18 aus der Bewegungsbahn des Stapels 12 zu entfernen, d.h. konkret zum Absenken und Anheben, wird die gesamte Kolben-Zylindereinrichtung 19 entsprechend abgesenkt und angehoben. Dies geschieht mit Hilfe einer Hubvor­richtung 25 z.B. in Gestalt einer weiteren Kolben-­Zylindereinrichtung.In order to remove the front stack support 13 and the sliding piece 18 from the path of movement of the stack 12, i.e. specifically for lowering and raising, the entire piston-cylinder device 19 is correspondingly lowered and raised. This is done with the aid of a lifting device 25 e.g. in the form of another piston-cylinder device.

Die zum Verschieben des Schiebestückes 18 dienende Kolben-Zylindereinrichtung 19 (Fig. 2) umfaßt den bereits oben erwähnten Zylinder 20, der eine Zylinderbohrung 26 und einen stangenlosen Kolben 27 sowie zwei stirnseitig angeordnete Kopfstücke 28, 29 mit Umlenkrollen 30 auf­weist. Parallel zu der Zylinderbohrung 26 erstreckt sich eine im Querschnitt beispielsweise C-förmige Führung 31 für einen Mitnehmer 32, der über ein Zugmittel bzw. Bänder 33, 34, die über die Umlenkrollen 30 laufen, mit dem Kolben 27 verbunden ist. In den Kopfstücken 28, 29 befinden sich schließlich noch Druckluftversorgungs­kanäle 35 und Durchtrittsöffnungen 36 mit Dichtungen 37 für die Bänder 33, 34.The piston-cylinder device 19 used to move the sliding piece 18 (FIG. 2) comprises the cylinder 20 already mentioned above, which has a cylinder bore 26 and a rodless piston 27 and two end pieces 28, 29 arranged on the end face with deflection rollers 30. Parallel to the cylinder bore 26 extends a guide 31, for example C-shaped in cross section, for a driver 32, which is connected to the piston 27 via a traction means or belts 33, 34 which run over the deflection rollers 30. Finally, compressed air supply ducts 35 and passage openings 36 with seals 37 for the bands 33, 34 are also located in the head pieces 28, 29.

Das eine Zugmittel bzw. Band 33 erstreckt sich von dem in der Führung 31 geführten Mitnehmer 32 über die linke Umlenkrolle 30 (Fig. 2) zum Kolben 27. Das andere Band 34 erstreckt sich von dem Mitnehmer 32 über die rechte Umlenkrolle 30 zum Kolben 27. Beide Bänder 33 und 34 durchgreifen dabei jeweils vor und hinter den Umlenkrollen 30 die Durchtrittsöffnungen 36 und 37, ehe sie in das Innere der Zylinderbohrung 26 eintreten. Das Innere der Zylinderbohrung 26 ist über die Druckluftversorgungskanäle 35 mit den Drossel­ventilen 21 bzw. Drosselrückschlagventilen 21 und einem Steuerventil 38 bzw. einer Steuereinrichtung 38 (Fig. 1) über geeignete Leitungen verbunden und an eine in den Figuren nicht dargestellte Druckluftversorgung angeschlossen.One traction means or belt 33 extends from the driver 32 guided in the guide 31 via the left deflection roller 30 (FIG. 2) to the piston 27. The other belt 34 extends from the driver 32 via the right deflection roller 30 to the piston 27 Both belts 33 and 34 penetrate through openings 36 and 37 in front of and behind deflection rollers 30 before they enter the interior of cylinder bore 26. The interior of the cylinder bore 26 is connected via the compressed air supply channels 35 to the throttle valves 21 or throttle check valves 21 and a control valve 38 or a control device 38 (FIG. 1) via suitable lines and connected to a compressed air supply, not shown in the figures.

Die zwischen dem Kolben 27 und dem Mitnehmer 32 ange­ordneten Zugmittel bzw. Bänder 33 und 34 sind unter­schiedlich lang. So ist bei dem in Fig. 2 dargestellten Ausführungsbeispiel das Band 33 länger als das Band 34. Hierdurch wird erreicht, daß der Kolben 27 zu Beginn seines Arbeitshubes unter Bildung einer Druckkammer 39 im Abstand von dem ihm zugehörigen Kopfstück 28 des kolbenstangenlosen Zylinders 20 steht. Diese Druck­kammer ist ein Teil der Zylinderbohrung 26 und besitzt einen entsprechend großen Querschnitt und ein großes Volumen im Vergleich zu dem Querschnitt und Volumen des Druckluftversorgungskanales 35 im zugehörigen Kopf­stück 28. Zu Beginn des Arbeitshubes beaufschlagt daher ein sehr großes Druckluftpolster den Kolben 27 und führt dazu, daß sich dieser sehr rasch aus seiner Ruhe­position in die Zylinderkammerhälfte 40 niedrigen Druckes bewegen kann. Entsprechend schnell ist zu Beginn des Arbeitshubes auch die Bewegung des über die Bänder 33, 34 mit dem Kolben 27 verbundenen Mit­nehmers 32, der gemäß den Darstellungen in den Figuren 3 und 4 das Schiebestück 18 trägt.The traction means or belts 33 and 34 arranged between the piston 27 and the driver 32 are of different lengths. Thus, in the embodiment shown in FIG. 2, the band 33 is longer than the band 34. This ensures that the piston 27 is at the beginning of its working stroke, forming a pressure chamber 39, at a distance from the associated head piece 28 of the rodless cylinder 20. This pressure chamber is part of the cylinder bore 26 and has a correspondingly large cross section and a large volume compared to the cross section and volume of the compressed air supply channel 35 in the associated head piece 28. At the beginning of the working stroke, a very large compressed air cushion therefore acts on the piston 27 and leads to that this very quickly low from its rest position in the cylinder chamber half 40 Pressure can move. At the beginning of the working stroke, the movement of the driver 32, which is connected to the piston 27 via the belts 33, 34 and which carries the sliding piece 18 as shown in FIGS. 3 and 4, is correspondingly rapid.

Der Mitnehmer 32 ist in Fig. 2 nur prinzipmäßig darge­stellt. Einzelheiten des Mitnehmers 32 gehen aus den Figuren 3 und 4 hervor.The driver 32 is only shown in principle in FIG. 2. Details of the driver 32 can be seen in FIGS. 3 and 4.

Um zu erreichen, daß der Kolben 27 zu Beginn eines Arbeitshubes in der Position gemäß Fig. 2 verharrt, wobei auf seiner einen Seite in der Druckkammer 39 bzw. Zylinderkammerhälfte 39 ein hoher Druck herrscht, während auf seiner anderen Seite in der Druckkammer­hälfte 40 ein niedriger Druck herrscht, weist der Mit­nehmer 32 eine gesteuerte Bremseinrichtung 41 auf. Diese Bremseinrichtung 41 arbeitet vorzugsweise mit Druckluft und wird über ein Anschlußstück 42 (Fig. 2) am Mitnehmer 32 sowie nicht näher dargestellte Leitungen mit Druckluft bzw. Bremsluft versorgt.In order to ensure that the piston 27 remains in the position according to FIG. 2 at the beginning of a working stroke, high pressure prevailing on one side in the pressure chamber 39 or cylinder chamber half 39, while on the other side in the pressure chamber half 40 a low pressure There is pressure, the driver 32 has a controlled braking device 41. This braking device 41 preferably works with compressed air and is supplied with compressed air or brake air via a connecting piece 42 (FIG. 2) on the driver 32 and lines (not shown).

Der Mitnehmer 32 besteht gemäß Fig. 3 aus einem aus der U-förmigen Führung 31 herausragenden Teil 43, der als Träger für das Schiebestück 18 dient, und aus Teilen, die sich im Inneren der Führung 31 befinden. Zu diesen Teilen gehören ein Mittelstück 44 und symmetrisch sowie spiegelbildlich zu diesem angeordnete Seitenstücke 45, die aussen mehrere, radial verlaufende Bohrungen 46 auf­weisen. Teil 43, Mittelstück 44 und die Seitenstücke 45 sind mittels nicht gezeigter Verbindungselemente fest mit­einander verbunden. Die Bohrungen 46 führen zu mindestens einem mittig angeordneten Kanal 47, der in nicht näher dar­gestellter Weise mit dem Anschlußstück 43 (Fig. 2) verbunden ist.According to FIG. 3, the driver 32 consists of a part 43 protruding from the U-shaped guide 31, which serves as a carrier for the sliding piece 18, and of parts which are located inside the guide 31. These parts include a center piece 44 and side pieces 45 arranged symmetrically and in mirror image thereof, which have a plurality of radially extending bores 46 on the outside. Part 43, middle piece 44 and the side pieces 45 are firmly connected to one another by means of connecting elements, not shown. The holes 46 lead to at least one centrally arranged channel 47, which is connected in a manner not shown to the connector 43 (Fig. 2).

Zwischen den Seitenstücken 45 und der Kontur 48 der Führung 31 befinden sich schließlich noch im Querschnitt U-förmige Gleit- und Bremsstücke 49. Sobald ein Druck in dem Kanal 47 und den Bohrungen 46 der Seitenstücke 45 aufgebaut wird, legen sich die Gleit- und Bremstücke 49 fest an die Kontur 48 der Führung 31 an und fixieren dadurch den Mitnehmer 32 und mit ihm gleichzeitig den Kolben 27. Wird der Bremsdruck durch entsprechende An­steuerung in den Bohrungen 46 der Seitenstücke 45 jedoch abrupt abgesenkt, so ist der Kolben 27 für einen Arbeits­hub frei und verschiebt den Mitnehmer 32.Finally, there are U-shaped sliding and braking pieces 49 between the side pieces 45 and the contour 48 of the guide 31. As soon as a pressure is built up in the channel 47 and the bores 46 of the side pieces 45, the sliding and braking pieces settle 49 firmly on the contour 48 of the guide 31 and thereby fix the driver 32 and with it simultaneously the piston 27. However, if the brake pressure is abruptly lowered by appropriate control in the bores 46 of the side pieces 45, the piston 27 is free for a working stroke and moves the driver 32.

Wie Fig. 3 ferner zeigt, weist der Zylinder 20 Seiten­wände 50, 51 mit in Längsrichtung verlaufenden Führungs­nuten 52 auf, in denen Arme 53 des Mitnehmers 32 mit Rollen 54 geführt sind.As FIG. 3 also shows, the cylinder 20 has side walls 50, 51 with longitudinal guide grooves 52, in which arms 53 of the driver 32 are guided with rollers 54.

Zur Steuerung der Bremseinrichtung 41 dienen u.a. auch Sensoren 55, 56, die am Mitnehmer 32 oder seinem Schiebestück 18 (Fig. 3) bzw. am Maschinengestell 4 angeordnet sind.To control the braking device 41 serve, inter alia, also sensors 55, 56 which are arranged on the driver 32 or its sliding piece 18 (FIG. 3) or on the machine frame 4.

Das Schiebestück 18 gemäß Fig. 3 weist zwei Trennfinger 57 auf, die durch den Schlitz 11 in der Tischplatte 8 greifen. Ein weiteres Schiebestück 18a gemäß Fig. 4 weist vier nebeneinander stehende Trennfinger 57 auf, wobei die beiden äusseren Trennfinger 57 in einer Führung 58 auf die beiden inneren Trennfinger 57 hin verstellbar und arretierbar sind.3 has two separating fingers 57 which reach through the slot 11 in the table top 8. A further sliding piece 18a according to FIG. 4 has four separating fingers 57 standing next to one another, the two outer separating fingers 57 in one Guide 58 on the two inner separating fingers 57 are adjustable and lockable.

Der größeren Breite des Schiebestückes 18a wegen sind seitlich neben dem Zylinder 20 Tragrohre 59 angeordnet und dienen als Träger für Böcke 60 und je eine Linear­führung 61. Zum Schiebestück 18a gehört ferner ein Winkelstück 62 mit Führungsbuchsen 63, die auf den Linearführungen 61 gleiten. Das Winkelstück 62 ist schließlich in zweckmäßiger Weise mit dem Teil 43 des Mitnehmers 32 verbunden, wie im einzelnen aus Fig. 4 hervorgeht.Because of the greater width of the sliding piece 18a, support tubes 59 are arranged laterally next to the cylinder 20 and serve as supports for trestles 60 and one linear guide 61 each. The sliding piece 18a also includes an angle piece 62 with guide bushes 63 which slide on the linear guides 61. The angle piece 62 is finally expediently connected to the part 43 of the driver 32, as can be seen in detail from FIG. 4.

Gemäß dem in den Figuren dargestellten Ausführungsbei­spiel ist der Zylinder 20 länger als der Arbeitshub. Die Erfindung ist jedoch nicht auf eine derartige Aus­führungsform beschränkt, denn Ergänzungen und Ab­wandlungen sind im Rahmen des Erfindungsgedankens möglich. So kann anstelle einer durch die Endstellung des Kolbens 27 im Zylinder 20 definierte Druckkammer 39 auch eine gesonderte Druckkammer für den Kolben 27 un­abhängig vom Zylinder 20 vorgesehen sein.According to the embodiment shown in the figures, the cylinder 20 is longer than the working stroke. However, the invention is not limited to such an embodiment, because additions and modifications are possible within the scope of the inventive concept. Thus, instead of a pressure chamber 39 defined by the end position of the piston 27 in the cylinder 20, a separate pressure chamber for the piston 27 can also be provided independently of the cylinder 20.

Claims (8)

1) Vorrichtung zum Verschieben von Teilen, insbesondere zum Verschieben eines aus zu verpackenden Briefhüllen bestehenden Stapels von einer Ablegevorrichtung zu einer Verpackungsstation, mit Hilfe eines kolben­stangenlosen Zylinders, der Druckluftversorgungskanäle, Dichtungen und Umlenkrollen in seinen Kopfstücken sowie Zugmittel aufweist, die den Kolben mit einem Mitnehmer für ein Schiebestück verbinden, dadurch gekennzeichnet, daß der Kolben (27) zu Beginn seines Arbeitshubes druckseitig an einer Druckkammer (39) steht.1) Device for moving parts, in particular for moving a stack of envelopes to be packed from a storage device to a packaging station, with the aid of a rodless cylinder that has compressed air supply channels, seals and deflection rollers in its head pieces, as well as traction means, which the piston with a driver Connect for a sliding piece, characterized in that the piston (27) is on the pressure side of a pressure chamber (39) at the beginning of its working stroke. 2) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (27) im kolbenstangenlosen Zylinder (20) zu Beginn seines Arbeitshubes unter Bildung einer Druckkammer (39) im Abstand von dem ihm zugehörigen Kopfstück (28) steht.2) Device according to claim 1, characterized in that the piston (27) in the rodless cylinder (20) at the beginning of its working stroke with the formation of a pressure chamber (39) at a distance from the associated head piece (28). 3) Vorrichtung nach Anspruch 1 und 2, dadurch gekenn­zeichnet, daß der Zylinder (20) länger ist als der Arbeitshub.3) Device according to claim 1 and 2, characterized in that the cylinder (20) is longer than the working stroke. 4) Vorrichtung nach Anspruch 1 - 3, dadurch gekenn­zeichnet, daß zwei Zugmittel bzw. Bänder (33, 34) den Kolben (27) und den Mitnehmer (32) verbinden und daß das eine Band (33) länger ist als das andere Band (34).4) Device according to claims 1-3, characterized in that two traction means or bands (33, 34) connect the piston (27) and the driver (32) and that one band (33) is longer than the other band ( 34). 5) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das mit dem Mitnehmer (32) verbundene Schiebe­stück (18) aussen in Führungsnuten (52) des Zylinders (20) geführt ist.5) Device according to claim 1, characterized in that the sliding piece (18) connected to the driver (32) is guided on the outside in guide grooves (52) of the cylinder (20). 6) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß Linearführungen (61) für das Schiebestück (18a) seitlich neben dem Zylinder (20) angeordnet sind.6) Device according to claim 1, characterized in that linear guides (61) for the sliding piece (18a) are arranged laterally next to the cylinder (20). 7) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (27) in seiner Startposition von einer Bremseinrichtung (41) gehalten wird.7) Device according to claim 1, characterized in that the piston (27) is held in its starting position by a braking device (41). 8) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bremseinrichtung (41) an einem vom Kolben (27) bewegten Mitnehmer (32) angeordnet ist.8) Device according to claim 1, characterized in that the braking device (41) is arranged on a driver (32) moved by the piston (27).
EP89110732A 1988-06-30 1989-06-14 Use of a known device for shifting components Expired - Lifetime EP0348730B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822103 1988-06-30
DE3822103A DE3822103A1 (en) 1988-06-30 1988-06-30 DEVICE FOR MOVING PARTS

Publications (2)

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EP0348730A1 true EP0348730A1 (en) 1990-01-03
EP0348730B1 EP0348730B1 (en) 1994-12-28

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EP (1) EP0348730B1 (en)
JP (1) JPH0257526A (en)
CA (1) CA1326690C (en)
DE (2) DE3822103A1 (en)
ES (1) ES2065942T3 (en)
FI (1) FI88011C (en)

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DE4030410A1 (en) * 1990-09-26 1992-04-02 Natec Reich Summer Gmbh Co Kg Installation for packing foodstuff - has transfer device to transfer foodstuff from slicing station to packing station
DE4117434A1 (en) * 1991-05-28 1992-12-03 Winkler Duennebier Kg Masch METHOD AND DEVICE FOR STACKING
DE4229964C2 (en) * 1992-09-08 1996-09-19 Haver & Boecker Empty sack magazine
DE4241034C1 (en) * 1992-12-05 1994-04-21 Chemieanlagenbau Stasfurt Ag Assembly separates adjacent filter plates with lever rising between load-bearing walls and moves them plates - to a defined new location where are held in place for cleaning

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Also Published As

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FI893129A0 (en) 1989-06-27
FI88011B (en) 1992-12-15
JPH0257526A (en) 1990-02-27
CA1326690C (en) 1994-02-01
EP0348730B1 (en) 1994-12-28
DE58908820D1 (en) 1995-02-09
DE3822103A1 (en) 1990-02-08
FI893129A (en) 1989-12-31
ES2065942T3 (en) 1995-03-01
FI88011C (en) 1993-03-25

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