EP1699729B1 - Device for screwing caps onto containers - Google Patents

Device for screwing caps onto containers Download PDF

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Publication number
EP1699729B1
EP1699729B1 EP04819640A EP04819640A EP1699729B1 EP 1699729 B1 EP1699729 B1 EP 1699729B1 EP 04819640 A EP04819640 A EP 04819640A EP 04819640 A EP04819640 A EP 04819640A EP 1699729 B1 EP1699729 B1 EP 1699729B1
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EP
European Patent Office
Prior art keywords
cam
gripping
accordance
control
opening position
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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.)
Not-in-force
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EP04819640A
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German (de)
French (fr)
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EP1699729A1 (en
Inventor
Horst Lang
Martina Wrede
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Krones AG
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Krones AG
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Publication of EP1699729A1 publication Critical patent/EP1699729A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • B67B3/2013—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps by carousel-type capping machines
    • B67B3/2033—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps by carousel-type capping machines comprising carousel co-rotating capping heads

Definitions

  • the invention relates to a device for screwing caps on vessels according to the preamble of claim 1.
  • the invention is based on the object to provide a device for screwing caps on vessels, in which the control of the gripping tongs requires no stationary lifting curve and allows a fast and variable reversing the gripping tongs.
  • a device according to the invention is carried out by the circulating with the Verschschköpfen control elements in conjunction with the stationary attacks a precise and fast reversing the gripping tongs - completely without stationary control curve.
  • the attacks themselves can be easily implemented and are easy to accommodate in sterile environments.
  • a particularly simple and reliable reversal occurs when, according to a development of the invention, the closing position and / or the opening position of the control members is self-locking stabilized.
  • the device of FIGS. 1, 2 and 5 is designed for screwing provided with an internal thread closure caps V made of plastic on vessels G in the form of PET bottles for drinks. It has a rotating around a vertical axis of rotation D rotor 1, on the evenly distributed over the circumference several Verschdorfkexcellent 2 are arranged, which rotate on a circular path K.
  • Each capping head 2 is rotatably mounted in a horizontal bearing bridge 10, which in turn is mounted on a vertical column 11. This is controlled by means of a lifting cam, not shown, mounted vertically movable in the rotor 1, as indicated by the double arrow 12.
  • a lifting cam not shown, mounted vertically movable in the rotor 1, as indicated by the double arrow 12.
  • an electric servomotor 13 is further attached, which sets the capping head 2 at predetermined areas of its circular path K with the rotor 1 at predetermined speed and predetermined torque via gears 14, 15, 16 in rotation.
  • Each capping head 2 has at the lower end a gripping tongs 3 constructed from a plurality of gripping arms 17, 18, in particular three double-lever-like gripping arms 17, for one cap V in each case.
  • the gripping arms 17, 18 are pivotable about horizontal axes 19, 20 and provided at the lower end with gripping jaws 21, 22 for a closure cap V.
  • the gripping arms 17, 18 curved elongated holes 23, 24, in the bolts 25, 26 engage. These are attached to a control head 27 which by means of a rod 28 in the height-adjustable Sealing head 2 is mounted.
  • a compression spring 29 is arranged, which is supported at the lower end directly on the capping head 2 and at the upper end to a fixed to the rod 28 sleeve 30.
  • the compression spring 29 thus urges the control head 27 into its upper end position shown in FIG. 2, in which the bolts 25, 26 close and / or hold the gripping tongs 3 via the oblong holes 23, 24.
  • a closure cap V firmly clamped so that it can be screwed by the driven via the servo motor 13 closing head 2 on a vessel G.
  • a vessel holder 31 is attached to the rotor 1 under each capping head 2, in which the vessel G is clamped in a rotationally fixed manner.
  • a plunger 8 is mounted vertically movable in the closing head 2. This is supported by a ball 32 on the rod 28, so that relative to this rotational movement is possible. Towards the top of the plunger 8 protrudes a piece of the capping head 2 out.
  • an acting on the plunger 8 control member 4 for the gripper tongs 3 in the form of a cam 7 on a vertical axis 33 is rotatably mounted.
  • the axis 33 is laterally offset from the likewise vertically arranged plunger 8 and mounted on a U-shaped bracket 34, which in turn is mounted on the top of the bearing bracket 10.
  • the control member 4 therefore makes both the height movement of the bearing bridge 10 and thus of the capping head 2 as well as its orbital motion on the circular path K about the axis of rotation D.
  • the cam 7 of the control member 4 is formed as a space curve and shaped so that it in the opening position shown in Fig. 1, the plunger 8 and via this the rod 28th presses in its lower end position.
  • the grasping forceps 3 are opened or held open and can thus be lowered onto a closure cap V to be grasped.
  • the closure caps V are moved in a customary manner by means of a feeder 35 under the classification heads 2.
  • the cam 7 of the control member 4 is shaped such that it releases the plunger 8 in the closed position shown in Fig. 2, so that the rod 28 can assume its upper end position under the influence of the compression spring 29.
  • the gripping tongs 3 are kept closed or closed, so that a closure cap V grasped by the gripping tongs 3 can be screwed onto a vessel G.
  • the opening position of the control member 4 is offset from the closed position by approximately 90 degrees. Both positions are self-locking by the bearing friction on the axis 33 (closed position) and by the friction between the cam 7 and plunger 8, caused by the compression spring 29, (open position).
  • Each control member 4 also has at the upper end a rotatably connected to its cam 7 angle lever 9. This cooperates with two bolt-shaped stops 5, 6, which are arranged on columns S stationary on the circular path K of Verschdorfkexcellent 2.
  • the first stopper 5 controls the grasping forceps 3 from the opening position shown in FIG. 1 to the closed position shown in FIG. 2, shortly after it has been placed on a closure cap V.
  • the second stop 6 controls the gripping tongs from the closed position shown in FIG. 2 in the in Fig. 1 shown opening position, shortly after the cap V has been completely screwed onto the vessel G.
  • the second stop 6 is indicated in phantom in Fig. 5, since it is in reality further away from the first stop 5.
  • the closing head 2 ' according to FIGS. 3 and 4, with the exception of the control member 4', largely coincides with the closing head 2 according to FIGS. 1 and 2. Corresponding parts are marked with the same reference number and the suffix '. In the following, only the deviations are described.
  • the device according to Figures 6 and 7 differs from the device according to Figures 3 and 4 only by the design of the control member 4 "and the stationary stops 5 'and 6' cooperating therewith.
  • the control member 4" here has a horizontal lever 38 at the top two concentric cam rollers 39 are rotatably arranged with a vertical axis of rotation.
  • the stationary stops 5 'and 6' for opening and closing the gripping tongs 3 have here in each case a horizontal plate 40, 41, on whose underside groove curves 42, 43 are formed.
  • the groove curves 42, 43 each have tangent to the circular path K extending starting and end regions and an obliquely to the circular path K extending center region.
  • the tangential areas allow a bumpless entry and exit of the cam rollers 39 while the inclined center area causes the rotation of the lever 38 and thus the control member 4 "by about 85 °.
  • the groove curves 42, 43 extend only over a small part of the circular path K and are arranged independently adjustable on the columns S. This results in low production costs and a simple adaptation to the operating conditions.

Abstract

A device for screwing caps onto containers with several closing heads revolving on a closed track, each closing head having a controllable gripping tong, a control unit for the opening position and the closed position of the corresponding gripping tong, with each control unit revolving along with and allocated to every gripping tong. The revolving control units can be reversed in direction between the opening position and the closed position by stationary stops. In this manner, a precise and rapid reversal of the gripping tongs, as well as a simple adjustment of the opening- and closed position, is made possible without a stationary control curve.

Description

Die Erfindung betrifft eine Vorrichtung zum Aufschrauben von Verschlusskappen auf Gefäße gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for screwing caps on vessels according to the preamble of claim 1.

Es ist bereits eine derartige Vorrichtung bekannt, bei der die Betätigung der Greifzangen für die Verschlüsse durch eine stationäre Steuerkurve erfolgt, in die mit den Greifzangen auf einer Kreisbahn umlaufende Kurvenrollen eingreifen (SU-PS 1 736 915 oder US-A-4 089 153). Die Zeit für die Schließ- und Öffnungsbewegung der Greifzangen ist hierbei auf Grund der max. zulässigen Kurvensteigung relativ groß, was hohen Leistungen im Wege steht. Eine Veränderung der Schließ- bzw. Öffnungsposition der Greifzangen erfordert einen zeitraubenden Austausch der Steuerkurve. Auch die Fertigung und Montage der Steuerkurve ist sehr kostenintensiv, da ihr Verlauf exakt auf den Verlauf einer zweiten Steuerkurve abgestimmt sein muss, welche die Hubbewegung der Verschließköpfe definiert.It is already known such a device in which the operation of the gripping tongs for the closures is effected by a stationary control cam, in which engage with the gripping tongs on a circular path rotating cam rollers (SU-PS 1 736 915 or US-A-4 089 153) , The time for the closing and opening movement of the grippers is here due to the max. permissible curve slope relatively large, which stands in the way of high performance. A change in the closing or opening position of the gripper tongs requires a time-consuming replacement of the control cam. The production and installation of the control cam is very costly, since its course must be matched exactly to the course of a second control curve, which defines the lifting movement of the closing heads.

Der Erfindung liegt die Aufgabe zu Grunde, eine Vorrichtung zum Aufschrauben von Verschlusskappen auf Gefäße zu schaffen, bei der die Steuerung für die Greifzangen ohne stationäre Hubkurve auskommt und ein schnelles und variables Umsteuern der Greifzangen ermöglicht.The invention is based on the object to provide a device for screwing caps on vessels, in which the control of the gripping tongs requires no stationary lifting curve and allows a fast and variable reversing the gripping tongs.

Diese Aufgabe wird erfindungsgemäß durch die im Anspruch 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in claim 1.

Bei einer erfindungsgemäßen vorrichtung erfolgt durch die mit den Verschließköpfen umlaufenden Steuerorgane in Verbindung mit den stationären Anschlägen ein präzises und schnelles Umsteuern der Greifzangen - ganz ohne stationäre Steuerkurve. Die Anschläge selbst können einfach umgesetzt werden und sind auch in Sterilräumen leicht unterzubringen.In a device according to the invention is carried out by the circulating with the Verschließköpfen control elements in conjunction with the stationary attacks a precise and fast reversing the gripping tongs - completely without stationary control curve. The attacks themselves can be easily implemented and are easy to accommodate in sterile environments.

Eine besonders einfache und zuverlässige Umsteuerung ergibt sich, wenn gemäß einer Weiterbildung der Erfindung die Schließposition und/oder die Öffnungsposition der Steuerorgane selbsthemmend stabilisiert ist.A particularly simple and reliable reversal occurs when, according to a development of the invention, the closing position and / or the opening position of the control members is self-locking stabilized.

Für die Ausbildung der Steuerorgane sind verschiedene Möglichkeiten denkbar. Besonders bevorzugt ist die Gestaltung nach den Unteransprüchen 3 bis 5.For the formation of the control organs various possibilities are conceivable. Particularly preferred is the design according to the subclaims 3 to 5.

Im Nachstehenden werden zwei Ausführungsbeispiele der Erfindung anhand der Zeichnungen beschrieben. Es zeigen:

Fig. 1
die Seitenansicht eines Verschließkopfs mit geöffneter Greifzange, teilweise im Schnitt
Fig. 2
die teilweise Seitenansicht eines Verschließkopfs nach Fig. 1 mit geschlossener Greifzange
Fig. 3
die teilweise Seitenansicht eines Verschließkopfs mit abgewandeltem Steuerorgan bei geschlossener Greifzange
Fig. 4
einen senkrechten Schnitt durch den Verschließkopf nach Fig. 3
Fig. 5
die Draufsicht auf den Verschließkopf nach Fig. 1
Fig. 6
die Draufsicht auf eine weitere Ausführung einer Vorrichtung zum Aufschrauben von Verschlusskappen
Fig. 7
den Schnitt A B nach Fig. 6.
In the following two embodiments of the invention will be described with reference to the drawings. Show it:
Fig. 1
the side view of a capping head with open grasping forceps, partially in section
Fig. 2
the partial side view of a capping of Fig. 1 with closed grasping forceps
Fig. 3
the partial side view of a Verschließkopfs with modified control element with closed gripping pliers
Fig. 4
a vertical section through the capping of Fig. 3rd
Fig. 5
the top view of the capping of Fig. 1st
Fig. 6
the top view of another embodiment of a device for screwing on caps
Fig. 7
the section AB of FIG. 6.

Die Vorrichtung nach den Fig. 1, 2 und 5 ist zum Aufschrauben von mit einem Innengewinde versehenen Verschlusskappen V aus Kunststoff auf Gefäße G in Form von PET-Flaschen für Getränke ausgebildet. Sie weist einen um eine senkrechte Drehachse D umlaufenden Rotor 1 auf, auf dem gleichmäßig über den Umfang verteilt mehrere Verschließköpfe 2 angeordnet sind, die auf einer Kreisbahn K umlaufen.The device of FIGS. 1, 2 and 5 is designed for screwing provided with an internal thread closure caps V made of plastic on vessels G in the form of PET bottles for drinks. It has a rotating around a vertical axis of rotation D rotor 1, on the evenly distributed over the circumference several Verschließköpfe 2 are arranged, which rotate on a circular path K.

Jeder Verschließkopf 2 ist drehbar in einer horizontalen Lagerbrücke 10 gelagert, die ihrerseits auf einer senkrechten Säule 11 befestigt ist. Diese ist mittels einer nicht gezeigten Hubkurve gesteuert höhenbeweglich im Rotor 1 aufgenommen, wie durch den Doppelpfeil 12 angedeutet ist. Auf der Lagerbrücke 10 ist ferner ein elektrischer Servomotor 13 befestigt, der über Zahnräder 14, 15, 16 den Verschließkopf 2 an vorgegebenen Bereichen seiner Kreisbahn K mit dem Rotor 1 mit vorgegebener Drehzahl und vorgegebenen Drehmoment in Rotation versetzt.Each capping head 2 is rotatably mounted in a horizontal bearing bridge 10, which in turn is mounted on a vertical column 11. This is controlled by means of a lifting cam, not shown, mounted vertically movable in the rotor 1, as indicated by the double arrow 12. On the bearing bridge 10, an electric servomotor 13 is further attached, which sets the capping head 2 at predetermined areas of its circular path K with the rotor 1 at predetermined speed and predetermined torque via gears 14, 15, 16 in rotation.

Jeder Verschließkopf 2 weist am unteren Ende eine aus mehreren, insbesondere drei doppelhebelartigen Greifarmen 17, 18 aufgebaute Greifzange 3 für jeweils eine Verschlusskappe V auf. Die Greifarme 17, 18 sind um horizontale Achsen 19, 20 schwenkbar und am unteren Ende mit Greifbacken 21, 22 für eine Verschlusskappe V versehen. Am oberen Ende weisen die Greifarme 17, 18 kurvenförmige Langlöcher 23, 24 auf, in die Bolzen 25, 26 eingreifen. Diese sind an einem Steuerkopf 27 befestigt, der mittels einer Stange 28 höhenbeweglich im Verschließkopf 2 gelagert ist. Auf der senkrechten Stange 28 ist eine Druckfeder 29 angeordnet, die sich am unteren Ende direkt am Verschließkopf 2 und am oberen Ende an einer auf der Stange 28 befestigten Hülse 30 abstützt. Die Druckfeder 29 drängt so den Steuerkopf 27 in seine in Fig. 2 gezeigte obere Endposition, in der die Bolzen 25, 26 über die Langlöcher 23, 24 die Greifzange 3 schließen bzw. geschlossen halten. Dabei wird zwischen den Greifbacken 21, 22 eine Verschlusskappe V fest eingeklemmt, so dass sie durch den über den Servomotor 13 angetriebenen Verschließkopf 2 auf ein Gefäß G aufgeschraubt werden kann. Hierzu ist unter jedem Verschließkopf 2 ein Gefäßhalter 31 am Rotor 1 befestigt, in dem das Gefäß G drehfest eingespannt ist.Each capping head 2 has at the lower end a gripping tongs 3 constructed from a plurality of gripping arms 17, 18, in particular three double-lever-like gripping arms 17, for one cap V in each case. The gripping arms 17, 18 are pivotable about horizontal axes 19, 20 and provided at the lower end with gripping jaws 21, 22 for a closure cap V. At the upper end, the gripping arms 17, 18 curved elongated holes 23, 24, in the bolts 25, 26 engage. These are attached to a control head 27 which by means of a rod 28 in the height-adjustable Sealing head 2 is mounted. On the vertical rod 28, a compression spring 29 is arranged, which is supported at the lower end directly on the capping head 2 and at the upper end to a fixed to the rod 28 sleeve 30. The compression spring 29 thus urges the control head 27 into its upper end position shown in FIG. 2, in which the bolts 25, 26 close and / or hold the gripping tongs 3 via the oblong holes 23, 24. In this case, between the gripping jaws 21, 22 a closure cap V firmly clamped so that it can be screwed by the driven via the servo motor 13 closing head 2 on a vessel G. For this purpose, a vessel holder 31 is attached to the rotor 1 under each capping head 2, in which the vessel G is clamped in a rotationally fixed manner.

Konzentrisch zur Stange 28 ist im Verschließkopf 2 ein Stößel 8 höhenbeweglich gelagert. Diese stützt sich über eine Kugel 32 auf der Stange 28 ab, so dass relativ zu dieser eine Drehbewegung möglich ist. Nach oben hin ragt der Stößel 8 ein Stück aus dem Verschließkopf 2 heraus. In diesem Bereich ist ein auf den Stößel 8 einwirkendes Steuerorgan 4 für die Greifzange 3 in Form eines Nockens 7 auf einer senkrechten Achse 33 drehbar gelagert. Die Achse 33 ist seitlich gegenüber dem gleichfalls senkrecht angeordneten Stößel 8 versetzt und auf einem U-förmigen Lagerbock 34 befestigt, der seinerseits auf der Oberseite der Lagerbrücke 10 befestigt ist. Das Steuerorgan 4 macht daher sowohl die Höhenbewegung der Lagerbrücke 10 und damit des Verschließkopfs 2 als auch dessen Umlaufbewegung auf der Kreisbahn K um die Drehachse D mit.Concentric with the rod 28, a plunger 8 is mounted vertically movable in the closing head 2. This is supported by a ball 32 on the rod 28, so that relative to this rotational movement is possible. Towards the top of the plunger 8 protrudes a piece of the capping head 2 out. In this area, an acting on the plunger 8 control member 4 for the gripper tongs 3 in the form of a cam 7 on a vertical axis 33 is rotatably mounted. The axis 33 is laterally offset from the likewise vertically arranged plunger 8 and mounted on a U-shaped bracket 34, which in turn is mounted on the top of the bearing bracket 10. The control member 4 therefore makes both the height movement of the bearing bridge 10 and thus of the capping head 2 as well as its orbital motion on the circular path K about the axis of rotation D.

Der Nocken 7 des Steuerorgans 4 ist als Raumkurve ausgebildet und derart geformt, dass er in der in Fig. 1 gezeigten Öffnungsposition den Stößel 8 und über diesen die Stange 28 in ihre untere Endposition drückt. Hierdurch wird, wie bereits beschrieben, die Greifzange 3 geöffnet bzw. offen gehalten und kann so auf eine zu ergreifende Verschlusskappe V abgesenkt werden. Die Verschlusskappen V werden in üblicher Weise mittels einer Zuführung 35 teilungsgerecht unter die Verschließköpfe 2 bewegt.The cam 7 of the control member 4 is formed as a space curve and shaped so that it in the opening position shown in Fig. 1, the plunger 8 and via this the rod 28th presses in its lower end position. As a result, as already described, the grasping forceps 3 are opened or held open and can thus be lowered onto a closure cap V to be grasped. The closure caps V are moved in a customary manner by means of a feeder 35 under the classification heads 2.

Weiter ist der Nocken 7 des Steuerorgans 4 derart geformt, dass er in der in Fig. 2 gezeigten Schließposition den Stößel 8 freigibt, so dass die Stange 28 unter dem Einfluss der Druckfeder 29 ihre obere Endposition einnehmen kann. Hierdurch wird, wie bereits beschrieben, die Greifzange 3 geschlossen bzw. geschlossen gehalten, so dass eine von der Greifzange 3 erfasste Verschlusskappe V auf ein Gefäß G aufgeschraubt werden kann.Further, the cam 7 of the control member 4 is shaped such that it releases the plunger 8 in the closed position shown in Fig. 2, so that the rod 28 can assume its upper end position under the influence of the compression spring 29. As a result, as already described, the gripping tongs 3 are kept closed or closed, so that a closure cap V grasped by the gripping tongs 3 can be screwed onto a vessel G.

Die Öffnungsposition des Steuerorgans 4 ist gegenüber der Schließposition um ca. 90 Grad versetzt. Beide Positionen werden durch die Lagerreibung an der Achse 33 (Schließposition) und durch die Reibung zwischen Nocken 7 und Stößel 8, verursacht durch die Druckfeder 29, (Öffnungsposition) selbsthemmend stabilisiert.The opening position of the control member 4 is offset from the closed position by approximately 90 degrees. Both positions are self-locking by the bearing friction on the axis 33 (closed position) and by the friction between the cam 7 and plunger 8, caused by the compression spring 29, (open position).

Jedes Steuerorgan 4 weist ferner am oberen Ende einen drehfest mit seinem Nocken 7 verbundenen Winkelhebel 9 auf. Dieser wirkt mit zwei bolzenförmigen Anschlägen 5, 6 zusammen, die auf Säulen S stationär an der Kreisbahn K der Verschließköpfe 2 angeordnet sind. Der erste Anschlag 5 steuert die Greifzange 3 aus der in Fig. 1 gezeigten Öffnungsposition in die in Fig. 2 gezeigte Schließposition um, kurz nachdem diese auf eine Verschlusskappe V aufgesetzt worden ist. Der zweite Anschlag 6 steuert die Greifzange aus der in Fig. 2 gezeigten Schließposition in die in Fig. 1 gezeigte Öffnungsposition um, kurz nachdem die Verschlusskappe V vollständig auf das Gefäß G aufgeschraubt worden ist. Der zweite Anschlag 6 ist in Fig. 5 strichpunktiert angedeutet, da er in Wirklichkeit weiter entfernt vom ersten Anschlag 5 ist.Each control member 4 also has at the upper end a rotatably connected to its cam 7 angle lever 9. This cooperates with two bolt-shaped stops 5, 6, which are arranged on columns S stationary on the circular path K of Verschließköpfe 2. The first stopper 5 controls the grasping forceps 3 from the opening position shown in FIG. 1 to the closed position shown in FIG. 2, shortly after it has been placed on a closure cap V. The second stop 6 controls the gripping tongs from the closed position shown in FIG. 2 in the in Fig. 1 shown opening position, shortly after the cap V has been completely screwed onto the vessel G. The second stop 6 is indicated in phantom in Fig. 5, since it is in reality further away from the first stop 5.

Der Verschließkopf 2' nach Fig. 3 und 4 stimmt mit Ausnahme des Steuerorgans 4' weitestgehend mit dem Verschließkopf 2 nach Fig. 1 und 2 überein. Entsprechende Teile sind mit der gleichen Bezugsziffer und dem Zusatz ' markiert. Im Nachstehenden sind nur die Abweichungen beschrieben.The closing head 2 'according to FIGS. 3 and 4, with the exception of the control member 4', largely coincides with the closing head 2 according to FIGS. 1 and 2. Corresponding parts are marked with the same reference number and the suffix '. In the following, only the deviations are described.

Beim Verschließkopf 2' ist das Steuerorgan 4', auf seiner Achse 33' konzentrisch zum Stößel 8' drehbar gelagert. Der Stößel 8' trägt an seinem oberen Ende einen horizontalen Bolzen 36, der beiderseits aus dem Stößel 8' herausragt. Auf den herausragenden Enden des Bolzens 36 ist jeweils eine Rolle 37 drehbar gelagert, die mit dem Nocken 7' des Steuerorgans 4' zusammenwirkt. Hierdurch ergeben sich bessere Reibungsverhältnisse als bei dem direkten Kontakt zwischen dem Stößel 8 und dem Nocken 7 des Verschließkopfs 2. Außerdem ist eine bessere Selbsthemmung möglich, in dem in den Nocken 7' leichte Absenkungen 38 eingearbeitet sind, in welche die Rollen 37 unter dem Einfluss der Druckfeder 29' eingedrückt werden. Der Bolzen 36 ist in Langlöchern des Lagerbocks 34' geführt, und macht daher, die Rotation des Verschließkopfs 2' nicht mit.When Verschließkopf 2 ', the control member 4', mounted on its axis 33 'concentric with the plunger 8' rotatable. The plunger 8 'carries at its upper end a horizontal bolt 36 which protrudes on both sides of the plunger 8'. On the protruding ends of the bolt 36 each have a roller 37 is rotatably mounted, which cooperates with the cam 7 'of the control member 4'. This results in better friction conditions than in the direct contact between the plunger 8 and the cam 7 of the Verschließkopfs 2. In addition, a better self-locking is possible in which in the cam 7 'slight subsidence 38 are incorporated, in which the rollers 37 under the influence the compression spring 29 'are pressed. The bolt 36 is guided in slots of the bearing block 34 ', and therefore makes, the rotation of the capping head 2' not with.

Die Vorrichtung nach Fig. 6 und 7 unterscheidet sich von der Vorrichtung nach Fig. 3 und 4 lediglich durch die Gestaltung des Steuerorgans 4" und der damit zusammenwirkenden stationären Anschläge 5' und 6'. Das Steuerorgan 4" weist hier einen horizontalen Hebel 38 auf, an dessen Oberseite zwei konzentrische Kurvenrollen 39 mit senkrechter Drehachse drehbar angeordnet sind.The device according to Figures 6 and 7 differs from the device according to Figures 3 and 4 only by the design of the control member 4 "and the stationary stops 5 'and 6' cooperating therewith. The control member 4" here has a horizontal lever 38 at the top two concentric cam rollers 39 are rotatably arranged with a vertical axis of rotation.

Die stationären Anschläge 5' und 6' zum Öffnen bzw. Schließen der Greifzange 3 weisen hier jeweils eine horizontale Platte 40, 41 auf, an deren Unterseiten Nutkurven 42, 43 ausgebildet sind. Die Nutkurven 42, 43 weisen jeweils tangential zur Kreisbahn K verlaufende Anfangs- und Endbereiche sowie einen schräg zur Kreisbahn K verlaufenden Mittelbereich auf. Die tangentialen Bereiche ermöglichen einen stoßfreien Ein- und Auslauf der Kurvenrollen 39 während der schräge Mittelbereich die verdrehung des Hebels 38 und damit des Steuerorgans 4" um ca. 85° bewirkt.The stationary stops 5 'and 6' for opening and closing the gripping tongs 3 have here in each case a horizontal plate 40, 41, on whose underside groove curves 42, 43 are formed. The groove curves 42, 43 each have tangent to the circular path K extending starting and end regions and an obliquely to the circular path K extending center region. The tangential areas allow a bumpless entry and exit of the cam rollers 39 while the inclined center area causes the rotation of the lever 38 and thus the control member 4 "by about 85 °.

Hierdurch wird auch bei hohen Leistungen ein verschleißfreier und sanfter Ablauf der Umsteuerung der Greifzangen 3 bewirkt. Die Nutkurven 42, 43 erstrecken sich nur über einen kleinen Teil der Kreisbahn K und sind unabhängig voneinander verstellbar an den Säulen S angeordnet. Hierdurch ergeben sich günstige Fertigungskosten und eine einfache Anpassung an die Betriebsbedingungen.As a result, a wear-free and smooth sequence of the reversal of the gripper tongs 3 is effected even at high powers. The groove curves 42, 43 extend only over a small part of the circular path K and are arranged independently adjustable on the columns S. This results in low production costs and a simple adaptation to the operating conditions.

Claims (7)

  1. Device for screwing caps onto containers (C) with several capping heads (2), each of which has controlled gripping tongs (3) that can move backwards and forwards, characterized in that each gripping tong (3) has a control body (4) associated with it and that circulates with the said gripping tong (3), the said control body (4) being able to move, relative to the closed track (T), between an opening position that opens the gripping tongs (3) and a closing setting that closes the gripping tongs (3) and in that the control bodies (4) can be piloted, between the opening position and the closing position, by means of stationary abutments (5, 6).
  2. Device in accordance with claim 1, characterized in that the closing position and/or the opening position of the control bodies (4) is stabilized through self-locking.
  3. Device in accordance with claims 1 or 2, characterized in that the control body (4) has a cam (7), which operates the associated gripping tong (3) by means of a push rod (8) that is supported, such that it can shift, in the capping head (2), the said cam (7) being supported, on the rotor (1), such that it can rotate.
  4. Device in accordance with claim 3, characterized in that each control body (4) has a toggle lever (9) that is rotationally fixed to the cam (7) and that functions in conjunction with the stationary abutment means (5, 6).
  5. Device in accordance with claims 3 and 4, characterized in that the rotation axis of the cam (7) and the longitudinal axis of the push rod (8) are disposed parallel to the rotation axis (R) of the rotor (1) and the cam (7) is formed as a curve in space.
  6. Device in accordance with claims 1 to 5, characterized in that the stationary abutment means (5', 6') have curve pieces (42, 43) that are inclined in relation to the closed track (T) of the capping heads (2).
  7. Device in accordance with claim 6, characterized in that the control bodies (4) are provided with the rollers (39) or suchlike that make contact with the curve pieces (42, 43).
EP04819640A 2003-12-02 2004-12-01 Device for screwing caps onto containers Not-in-force EP1699729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356222A DE10356222A1 (en) 2003-12-02 2003-12-02 Device for screwing caps onto vessels
PCT/EP2004/013599 WO2005054113A1 (en) 2003-12-02 2004-12-01 Device for screwing caps onto containers

Publications (2)

Publication Number Publication Date
EP1699729A1 EP1699729A1 (en) 2006-09-13
EP1699729B1 true EP1699729B1 (en) 2007-02-14

Family

ID=34625468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04819640A Not-in-force EP1699729B1 (en) 2003-12-02 2004-12-01 Device for screwing caps onto containers

Country Status (5)

Country Link
US (1) US20070068117A1 (en)
EP (1) EP1699729B1 (en)
AT (1) ATE353851T1 (en)
DE (2) DE10356222A1 (en)
WO (1) WO2005054113A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013931U1 (en) 2007-10-05 2008-07-10 Krones Ag circlip
DE102007057284A1 (en) 2007-11-28 2009-06-04 Krones Ag Device and method for opening or closing containers by means of screw caps
US20120272624A1 (en) * 2011-04-29 2012-11-01 Kinex Cappers Llc Semi-automated cap securing apparatus
DE102012020026B4 (en) 2012-10-12 2015-03-19 Groninger GmbH & Co. KG Closing device with a monolithic gripping part
EP2792598B1 (en) 2013-04-19 2016-05-18 Mettler-Toledo GmbH Sample preparer with rotary gripper
DE102013113723A1 (en) 2013-12-09 2015-06-11 Krones Ag Apparatus and method for applying a molding to a container
CN103663316B (en) * 2013-12-19 2016-03-02 广州达意隆包装机械股份有限公司 One grabs lid and cap rotating device
CN104058355B (en) * 2014-06-27 2017-02-15 常州汇拓科技有限公司 Cap-screwing machine chuck
US20170073206A1 (en) * 2015-09-15 2017-03-16 Blackhawk Molding Co., Inc. Capping system
JP7240095B2 (en) * 2017-01-17 2023-03-15 フェラム パッケージング アーゲー Discharge head for discharge device of sealing machine for sealing containers
DE102019132465A1 (en) * 2019-11-29 2021-06-02 Krones Aktiengesellschaft Closer for closing containers

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Publication number Priority date Publication date Assignee Title
DE692879C (en) * 1936-07-04 1940-06-28 Helmut Sickel Dr Med Dent Device for closing vessels with screw caps
DE1223268B (en) * 1963-10-19 1966-08-18 Holstein & Kappert Maschf Filling machine for bottles or the like.
DE1432327A1 (en) * 1963-12-21 1969-04-10 Enzinger Union Werke Ag Filling element for counter pressure bottle fillers
US4089153A (en) * 1977-03-28 1978-05-16 A-T-O, Inc. Capping machine
US4232499A (en) * 1978-08-01 1980-11-11 John H. Holstein Capper chuck
SU1736915A1 (en) * 1990-06-21 1992-05-30 Опытно-Конструкторское Технологическое Бюро Расфасовочного И Упаковочного Оборудования Arrangement for placing inserts in flask necks
DE19816239A1 (en) * 1998-04-11 1999-10-14 Krones Ag Device for introducing and / or discharging containers into or from a treatment room
US5996311A (en) * 1998-08-10 1999-12-07 Krones, Inc. Device for tightening caps on containers
FR2838712B1 (en) * 2002-04-22 2004-06-25 Serac Group DEVICE FOR PREVENTING RECIPIENTS WITH ECCENTRIC CONTROL

Also Published As

Publication number Publication date
WO2005054113A1 (en) 2005-06-16
US20070068117A1 (en) 2007-03-29
EP1699729A1 (en) 2006-09-13
DE502004002930D1 (en) 2007-03-29
ATE353851T1 (en) 2007-03-15
DE10356222A1 (en) 2005-06-30

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