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EP4011788B1 - Tube holder - Google Patents

Tube holder Download PDF

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Publication number
EP4011788B1
EP4011788B1 EP21207081.7A EP21207081A EP4011788B1 EP 4011788 B1 EP4011788 B1 EP 4011788B1 EP 21207081 A EP21207081 A EP 21207081A EP 4011788 B1 EP4011788 B1 EP 4011788B1
Authority
EP
European Patent Office
Prior art keywords
tube
clamping
tube holder
clamping body
holder according
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.)
Active
Application number
EP21207081.7A
Other languages
German (de)
French (fr)
Other versions
EP4011788A1 (en
Inventor
Matthias JÜNGLING
Supachoke Euathanaboon
Tunyatorn Phongphaew
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IWK Verpackungstechnik GmbH
Original Assignee
IWK Verpackungstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by IWK Verpackungstechnik GmbH filed Critical IWK Verpackungstechnik GmbH
Publication of EP4011788A1 publication Critical patent/EP4011788A1/en
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Publication of EP4011788B1 publication Critical patent/EP4011788B1/en
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Classifications

    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B3/16—Methods of, or means for, filling the material into the containers or receptacles for filling collapsible tubes
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/54—Means for supporting containers or receptacles during the filling operation

Definitions

  • the invention relates to a tube holder for a tube filling machine according to the preamble of claim 1.
  • a tube filling machine usually has a continuously rotating conveyor device that carries a large number of receptacles, into each of which a tube holder is inserted.
  • a tube with its head or cap section can be inserted from above into each tube holder, with the tube passing through the individual work stations of the tube filling machine together with the tube holder.
  • the tube with its tube holder is lowered back into the receptacle.
  • the filled and closed tube is removed from the tube holder and transported away.
  • Tube holders are known in various designs.
  • a tube holder has a housing-like base body with an upwardly opening, shaft-like Tube holder into which the tube, which is preferably made of plastic or metal, is inserted with its head or cap section.
  • top and bottom refer to the usual orientation of a tube holder with a tube receptacle that opens upwards, into which the tube can be inserted from above with its head or cap section, so that the tube protrudes from the top of the tube holder with its end to be closed.
  • longitudinal axis of the tube receptacle extends vertically.
  • axial used here refers to the vertical longitudinal axis of the tube receptacle. A radial displacement of the clamping body takes place perpendicular to this and thus essentially horizontally.
  • the invention is not limited to a corresponding orientation of the tube holder and/or the tube receptacle.
  • a clamping body in the form of a clamping sleeve as used in the EN 10 2013 227 149 A1 shown, has the disadvantage that for fastening the clamping sleeve in The tube holder requires a special holding body that must be attached to the base body. The upper end of the clamping sleeve is not held and only rests against a stop surface. This makes the assembly of the clamping sleeve complex.
  • the DE 19755743 C1 concerns a connection device for pressure medium hoses and thus another technical object.
  • the invention is based on the object of creating a tube holder of the type mentioned, which is easy to assemble and with which tubes of different diameters can be held safely and reliably.
  • the clamping body has several clamping segments which are distributed around the circumference of the clamping body in such a way that a gap is formed between two immediately adjacent clamping segments. At least one web is arranged in each gap, which bridges the gap and connects the clamping segments adjacent to the gap. Those webs which are arranged in immediately adjacent gaps in the circumferential direction of the clamping body are arranged offset from one another in the axial direction.
  • the clamping segments and the webs form an inherently stable, but relatively deformable body that can adapt well to the outer wall of the tube.
  • the axial offset of those webs which are arranged in immediately adjacent spaces in the circumferential direction of the clamping body, ensures that the clamping body does not have an annular region which runs completely or over a large part of the circumference of the clamping body and which would locally excessively stiffen the clamping body.
  • a completely circumferential annular chamber is formed in the inner wall of the tube holder, into which the clamping body is completely inserted.
  • the clamping body should be aligned in such a way that the inner wall of the tube holder merges smoothly and seamlessly into the inner wall of the clamping body.
  • the clamping segments are designed in the form of strips and in particular have a constant width in the circumferential direction over their length.
  • the clamping segments can extend with an axial component and preferably run exactly in the axial direction.
  • clamping segments extend from the upper end of the clamping body to its lower end, whereby they can in particular run parallel to one another.
  • the clamping body has eight to fourteen preferably identical strip-shaped clamping segments, which are uniformly distributed, i.e. at equal distances, over the circumference of the clamping body and are held in position by the webs.
  • the web is arranged at the upper or lower axial end of the intermediate space.
  • two adjacent clamping segments together with the web connecting them form a U-shaped configuration, with upwardly opening U-shaped configurations and downwardly opening U-shaped configurations alternating over the circumference of the clamping body.
  • the web preferably runs in the circumferential direction of the clamping body, whereby in a connection or transition area between the clamping segments and the connecting A rounding can be provided on the web to avoid stress peaks.
  • the clamping segments which are preferably all designed the same, should have a width b 1 measured in the circumferential direction on their radial outside.
  • the webs which are preferably all designed the same, should have a width b 2 measured in the axial direction on the radial outside of the clamping body.
  • the widths b 1 and b 2 can be the same, preferably it is provided that 0.9 xb 1 ⁇ b 2 ⁇ 1.1 xb 1 .
  • the gaps formed between two adjacent clamping segments are preferably all of the same design and can have a width b 3 measured in the circumferential direction on the radial outer side that is approximately as large as the width b 1 of the clamping segments measured in the circumferential direction.
  • the clamping segments and the webs are designed as a one-piece component.
  • the clamping elements and the webs are designed as a one-piece plastic part that can be injection-molded or produced by 3D printing.
  • a further development of the invention can provide that at least one spring element is arranged on the radial outside of the clamping body, by means of which a spring force directed radially inwards can be applied to the clamping body.
  • the spring element can be a An annular spring should preferably be provided which completely surrounds the clamping body.
  • the clamping force of the clamping body depends on where the spring element engages the clamping body.
  • at least one groove can be formed on the outside of the clamping body, into which the spring element is inserted.
  • the groove is preferably formed by several partial grooves formed in the clamping segments, whereby direct contact of the spring element with one of the webs should be avoided.
  • the clamping body may have a conical or funnel-shaped cross-sectional extension of its inner cross-section at its upper end to facilitate the insertion of the tube into the clamping body.
  • the tube holder 10 shown has a cup-shaped base body 11, which has an annular flange 14 in its upper region.
  • annular flange 14 In the base body 11, an upwardly open, shaft-like tube receptacle 12 is formed, the inner diameter of which widens conically in the upper region to form an insertion bevel 13.
  • a tube T can be inserted vertically from above into the tube holder 12.
  • a longitudinal axis L of the tube holder 10 coincides with the longitudinal axis of the tube T.
  • a circumferential annular chamber 15 is formed in the inner wall of the tube holder 12, so that the tube holder 12 has an enlarged inner diameter in the area of the annular chamber 15.
  • a sleeve-shaped clamping body 16 is inserted into the annular chamber 15.
  • a screw 20 can be screwed into each through hole 21 from the outside of the base body 11 in such a way that its front radially inner end protrudes into the annular chamber 15 and engages with the clamping body 16 inserted into the annular chamber 15.
  • the screw 20 thus forms a locking element 19 which fixes the clamping body 16 in the annular chamber 15.
  • the clamping body 16 is in Fig.4 shown in detail. It can be seen that the clamping body 16 has several strip-shaped clamping segments 22, which all extend in the axial direction and over the circumference of the clamping body 16 are arranged so evenly distributed that an axially extending intermediate space 24 is formed between two immediately adjacent clamping segments 22. In each intermediate space 24 there is exactly one web 23 which bridges the intermediate space 24 and connects the clamping segments 22 adjacent to the intermediate space 24.
  • Some webs 23 are arranged at the axially upper end of the respective intermediate space 24, while other webs 23 are arranged at the axially lower end of the respective intermediate space 24, wherein the webs 23 arranged at the lower end of the intermediate space 24 and the webs 23 arranged at the upper end of the intermediate space 24 are arranged alternately in the circumferential direction of the clamping body 16, so that two adjacent clamping segments 22 and the web 23 connecting them form a U-shaped configuration which opens alternately upwards and downwards in the circumferential direction.
  • the clamping segments 22 are all of the same design and have a width b 1 on their radial outer side in the circumferential direction, as indicated by the double arrow b 1 in Fig.4 is shown.
  • the gaps 24 are all of the same design and have a width b 3 on their radial outer side in the circumferential direction, as indicated by the double arrow b 3 in Fig.4 is shown, wherein the width b 1 of the clamping segments is approximately equal to the width b 3 of the intermediate spaces 24.
  • the width b 1 of the clamping segments is approximately equal to the width b 3 of the intermediate spaces 24.
  • 0.9 x b1 ⁇ b 3 ⁇ 1.1 xb 1 Preferably:
  • the webs 23 have a width b 2 on their radial outer side in the axial direction, as indicated by the double arrow d 2 in Fig.4 is shown.
  • the width b 2 of the web is approximately equal to the width b 1 of the clamping segment 22, whereby preferably 0.9 xb 1 ⁇ b 2 ⁇ 1.1 xb 1 applies.
  • the inner cross-section of the clamping body 16 is widened conically or funnel-shaped at its axial upper end to form an insertion bevel 25.
  • annular groove 18 is formed around the clamping body 16, into which a spring element 17, for example in the form of a circumferential ring spring, can be inserted, as shown in the Fig.2 and 3 is shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Description

Die Erfindung betrifft einen Tubenhalter für eine Tubenfüllmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a tube holder for a tube filling machine according to the preamble of claim 1.

Eine Tubenfüllmaschine weist üblicherweise eine endlos umlaufende Fördervorrichtung auf, die eine Vielzahl von Aufnahmen trägt, in die jeweils ein Tubenhalter eingesetzt ist. In jedem Tubenhalter kann von oben eine Tube mit ihrem Kopf- oder Kappenabschnitt eingesetzt werden, wobei die Tube zusammen mit dem Tubenhalter die einzelnen Arbeitsstationen der Tubenfüllmaschine durchläuft. In einigen Arbeitsstationen, beispielsweise in der Füllstation und in der Verschließstation, kann vorgesehen sein, dass die Tube mit ihrem Tubenhalter aus der Aufnahme angehoben und in die jeweilige Arbeitsstation eingeführt wird. Nach Beendigung des Arbeitsschrittes wird die Tube mit ihrem Tubenhalter wieder in die Aufnahme abgesenkt. In einer Entnahmestation wird die gefüllte und geschlossene Tube aus dem Tubenhalter entnommen und abtransportiert.A tube filling machine usually has a continuously rotating conveyor device that carries a large number of receptacles, into each of which a tube holder is inserted. A tube with its head or cap section can be inserted from above into each tube holder, with the tube passing through the individual work stations of the tube filling machine together with the tube holder. In some work stations, for example in the filling station and in the closing station, it can be provided that the tube with its tube holder is lifted out of the receptacle and inserted into the respective work station. After the work step has been completed, the tube with its tube holder is lowered back into the receptacle. In a removal station, the filled and closed tube is removed from the tube holder and transported away.

Tubenhalter sind in verschiedenen Ausgestaltungen bekannt. Insbesondere weist ein Tubenhalter einen gehäuseartigen Grundkörper mit einer nach oben öffnenden, schachtartigen Tubenaufnahme auf, in die die Tube, die vorzugsweise aus Kunststoff oder Metall besteht, mit ihrem Kopf- oder Kappenabschnitt eingesetzt wird.Tube holders are known in various designs. In particular, a tube holder has a housing-like base body with an upwardly opening, shaft-like Tube holder into which the tube, which is preferably made of plastic or metal, is inserted with its head or cap section.

Aus der DE 10 2013 227 149 A1 , von der im Oberbegriff des Anspruchs 1 ausgegangen wird, ist es bekannt, in der Tubenaufnahme einen hülsenförmigen oder manschettenförmigen Spannkörper anzuordnen. Wenn die Tube in die Tubenaufnahme und in den Spannkörper axial eingeführt wird, wird der Spannkörper senkrecht zur Längsachse der Tubenaufnahme verformt und als Reaktion von dem Spannkörper eine radial nach innen in Richtung der Längsachse der Tubenaufnahme gerichtete Spannkraft auf die Tubenwandung aufgebracht wird, wodurch die Tube in dem Spannkörper festgeklemmt wird.From the EN 10 2013 227 149 A1 , which is assumed in the preamble of claim 1, it is known to arrange a sleeve-shaped or cuff-shaped clamping body in the tube holder. When the tube is axially introduced into the tube holder and into the clamping body, the clamping body is deformed perpendicular to the longitudinal axis of the tube holder and, as a reaction, the clamping body applies a clamping force directed radially inwards in the direction of the longitudinal axis of the tube holder to the tube wall, whereby the tube is clamped in the clamping body.

Die hier verwendeten Bezeichnungen "oben" und "unten" beziehen sich auf die übliche Ausrichtung eines Tubenhalters mit einer nach oben öffnenden Tubenaufnahme, in die die Tube mit ihrem Kopf- oder Kappenabschnitt von oben eingesetzt werden kann, so dass die Tube mit ihrem zu verschließenden Ende oberseitig aus dem Tubenhalter hervorsteht. Bei einer derartigen Ausrichtung des Tubenhalters erstreckt sich die Längsachse der Tubenaufnahme vertikal. Die hier verwendete Bezeichnung "axial" bezieht sich auf die vertikale Längsachse der Tubenaufnahme. Eine radiale Verlagerung des Spannkörpers erfolgt senkrecht dazu und somit im wesentlichen horizontal. Die Erfindung ist jedoch auf eine entsprechende Ausrichtung des Tubenhalters und/oder der Tubenaufnahme nicht beschränkt.The terms "top" and "bottom" used here refer to the usual orientation of a tube holder with a tube receptacle that opens upwards, into which the tube can be inserted from above with its head or cap section, so that the tube protrudes from the top of the tube holder with its end to be closed. With such an orientation of the tube holder, the longitudinal axis of the tube receptacle extends vertically. The term "axial" used here refers to the vertical longitudinal axis of the tube receptacle. A radial displacement of the clamping body takes place perpendicular to this and thus essentially horizontally. However, the invention is not limited to a corresponding orientation of the tube holder and/or the tube receptacle.

Mit einem Spannkörper in Form einer Spannmanschette, wie sie in der DE 10 2013 227 149 A1 gezeigt ist, ist der Nachteil verbunden, dass zur Befestigung der Spannmanschette in dem Tubenhalter ein spezieller Haltekörper notwendig ist, der an dem Grundkörper befestigt werden muss. Das obere Ende der Spannmanschette ist nicht gehalten und liegt lediglich an einer Anschlagfläche an. Auf diese Weise ist die Montage der Spannmanschette aufwendig.With a clamping body in the form of a clamping sleeve, as used in the EN 10 2013 227 149 A1 shown, has the disadvantage that for fastening the clamping sleeve in The tube holder requires a special holding body that must be attached to the base body. The upper end of the clamping sleeve is not held and only rests against a stop surface. This makes the assembly of the clamping sleeve complex.

Die DE 19755743 C1 betrifft eine Anschlussvorrichtung für Druckmittelschläuche und somit einen anderen technischen Gegenstand. Das Gleiche gilt auch für die GB 2112483 A , die einen rohrförmigen Verbinder zeigt, um Kunststoff-Rohre an Metall-Rohre anzuschließen.The DE 19755743 C1 concerns a connection device for pressure medium hoses and thus another technical object. The same applies to the GB2112483A , which shows a tubular connector for connecting plastic pipes to metal pipes.

Der Erfindung liegt die Aufgabe zu Grunde, einen Tubenhalter der genannten Art zu schaffen, der einfach zu montieren ist und mit dem Tuben unterschiedlicher Durchmesser sicher und zuverlässig gehalten werden können.The invention is based on the object of creating a tube holder of the type mentioned, which is easy to assemble and with which tubes of different diameters can be held safely and reliably.

Diese Aufgabe wird erfindungsgemäß durch einen Tubenhalter mit den Merkmalen des Anspruchs 1 gelöst. Dabei ist vorgesehen, dass der Spannkörper mehrere Spannsegmente aufweist, die über den Umgang des Spannkörpers so verteilt angeordnet sind, dass zwischen zwei unmittelbar benachbarten Spannsegmenten jeweils ein Zwischenraum gebildet ist. In jedem Zwischenraum ist zumindest ein Steg angeordnet, der den Zwischenraum überbrückt und die an den Zwischenraum angrenzenden Spannsegmente verbindet. Diejenigen Stege, die in Umfangsrichtung des Spannkörpers in unmittelbar benachbarten Zwischenräumen eingeordnet sind, sind in axialer Richtung zueinander versetzt angeordnet.This object is achieved according to the invention by a tube holder with the features of claim 1. It is provided that the clamping body has several clamping segments which are distributed around the circumference of the clamping body in such a way that a gap is formed between two immediately adjacent clamping segments. At least one web is arranged in each gap, which bridges the gap and connects the clamping segments adjacent to the gap. Those webs which are arranged in immediately adjacent gaps in the circumferential direction of the clamping body are arranged offset from one another in the axial direction.

Die Spannsegmente und die Stege bilden einen eigenstabilen, jedoch relativ verformungsweichen Körper, der sich gut der Außenwandung der Tube anpassen kann. Der axiale Versatz derjenigen Stege, die in Umfangrichtung des Spannkörpers in unmittelbar benachbarten Zwischenräumen angeordnet sind, stellt sicher, dass der Spannkörper keinen vollständig oder über einen großen Teil des Umfangs des Spannkörpers verlaufenden Ringbereich aufweist, der den Spannkörper lokal übermäßig versteifen würde.The clamping segments and the webs form an inherently stable, but relatively deformable body that can adapt well to the outer wall of the tube. The axial offset of those webs which are arranged in immediately adjacent spaces in the circumferential direction of the clamping body, ensures that the clamping body does not have an annular region which runs completely or over a large part of the circumference of the clamping body and which would locally excessively stiffen the clamping body.

Gemäß der Erfindung ist vorgesehen, dass in der Innenwandung der Tubenaufnahme eine vollständig umlaufende Ringkammer ausgebildet ist, in die der Spannkörper vollständig eingesetzt ist. Dabei sollte der Spannkörper so ausgerichtet sein, dass die Innenwandung der Tubenaufnahme glatt und stufenlos in die Innenwandung des Spannkörpers übergeht.According to the invention, a completely circumferential annular chamber is formed in the inner wall of the tube holder, into which the clamping body is completely inserted. The clamping body should be aligned in such a way that the inner wall of the tube holder merges smoothly and seamlessly into the inner wall of the clamping body.

Wenn die Tube in die Tubenaufnahme und den Spannkörper eingesetzt bzw. aus diesem wieder entnommen wird, wirken auf den Spannkörper Reibungskräfte in axialer Richtung ein. Es ist deshalb vorgesehen, den Spannkörper in der Tubenaufnahme mittels zumindest eines Sperrelementes in axialer Richtung zu sichern. Dies kann beispielsweise dadurch erreicht werden, dass als Sperrelement eine Schraube verwendet wird, die in einer im Grundkörper ausgebildeten, vorzugsweisen radialen Durchgangsbohrung sitzt und von der Außenseite des Grundkörpers eingeschraubt werden kann. Eine sichere Halterung des Spannkörpers ist gegeben, wenn zumindest zwei entsprechende Sperrelemente vorgesehen sind. Wenn zwei Sperrelemente verwendet werden, können diese diametral gegenüberliegend angeordnet sein. Es ist jedoch auch möglich, mehr als zwei Spannelemente vorzusehen, die dann vorzugsweise gleichverteilt über den Umfang des Spannkörpers verteilt angeordnet sein sollten.When the tube is inserted into the tube holder and the clamping body or removed from it again, frictional forces act on the clamping body in the axial direction. It is therefore intended to secure the clamping body in the tube holder in the axial direction by means of at least one locking element. This can be achieved, for example, by using a screw as the locking element, which sits in a preferably radial through-hole formed in the base body and can be screwed in from the outside of the base body. The clamping body is securely held if at least two corresponding locking elements are provided. If two locking elements are used, they can be arranged diametrically opposite one another. However, it is also possible to provide more than two clamping elements, which should then preferably be arranged evenly distributed over the circumference of the clamping body.

In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass die Spannsegmente leistenförmig ausgebildet sind und insbesondere über ihre länge eine konstante Breite in Umfangsrichtung aufweisen. Die Spannsegmente können sich mit axialer Komponente erstrecken und verlaufen vorzugsweise genau in axialer Richtung.In a preferred embodiment of the invention, the clamping segments are designed in the form of strips and in particular have a constant width in the circumferential direction over their length. The clamping segments can extend with an axial component and preferably run exactly in the axial direction.

In Weiterbildung der Erfindung ist vorgesehen, dass die Spannsegmente sich vom oberen Ende des Spannkörpers bis zu dessen unteren Ende erstrecken, wobei sie insbesondere parallel zueinander verlaufen können.In a further development of the invention, it is provided that the clamping segments extend from the upper end of the clamping body to its lower end, whereby they can in particular run parallel to one another.

In bevorzugter Ausgestaltung der Erfindung besitzt der Spannkörper acht bis vierzehn vorzugsweise gleichartige leistenförmige Spannsegmente, die gleichförmig, d.h. mit gleichem Abstand über den Umfang des Spannkörpers verteilt angeordnet sind und durch die Stege in Position gehalten sind.In a preferred embodiment of the invention, the clamping body has eight to fourteen preferably identical strip-shaped clamping segments, which are uniformly distributed, i.e. at equal distances, over the circumference of the clamping body and are held in position by the webs.

In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass in jedem Zwischenraum genau ein Steg angeordnet ist.In a preferred embodiment of the invention, it is provided that exactly one web is arranged in each intermediate space.

Dabei kann vorgesehen sein, dass der Steg am oberen oder am unteren axialen Ende des Zwischenraums angeordnet ist. Auf diese Weise bilden zwei benachbarte Spannsegmente zusammen mit dem sie verbindenden Steg eine U-förmige Konfiguration, wobei sich über den Umfang des Spannkörpers nach oben öffnende U-förmige Konfigurationen und nach unten öffnende U-förmige Konfigurationen abwechseln.It can be provided that the web is arranged at the upper or lower axial end of the intermediate space. In this way, two adjacent clamping segments together with the web connecting them form a U-shaped configuration, with upwardly opening U-shaped configurations and downwardly opening U-shaped configurations alternating over the circumference of the clamping body.

Der Steg verläuft vorzugsweise in Umfangsrichtung des Spannkörpers, wobei in einem Anschluss- oder Übergangsbereich zwischen den Spannsegmenten und dem sie verbindenden Steg eine Ausrundung vorgesehen sein kann, um Spannungsspitzen zu vermeiden.The web preferably runs in the circumferential direction of the clamping body, whereby in a connection or transition area between the clamping segments and the connecting A rounding can be provided on the web to avoid stress peaks.

Die Spannsegmente, die vorzugsweise alle gleich ausgebildet sind, sollen auf ihrer radialen Außenseite eine in Umfangsrichtung gemessene Breite b1 aufweisen. Die Stege, die vorzugsweise alle gleich ausgestaltet sind, sollen auf der radialen Außenseite des Spannkörpers eine in Axialrichtung gemessene Breite b2 aufweisen. Die Breiten b1 und b2 können gleich sein, vorzugsweise ist vorgesehen, dass 0,9 x b1 ≤ b2 ≤ 1,1 x b1.The clamping segments, which are preferably all designed the same, should have a width b 1 measured in the circumferential direction on their radial outside. The webs, which are preferably all designed the same, should have a width b 2 measured in the axial direction on the radial outside of the clamping body. The widths b 1 and b 2 can be the same, preferably it is provided that 0.9 xb 1 ≤ b 2 ≤ 1.1 xb 1 .

Die zwischen zwei benachbarten Spannsegmenten gebildeten Zwischenräume sind vorzugsweise alle gleich ausgebildet und können auf der radialen Außenseite eine in Umfangsrichtung gemessene Breite b3 aufweisen, die etwa so groß wie die Umfangsrichtung gemessene Breite b1 der Spannsegmente ist. Vorzugsweise ist vorgesehen, dass gilt: 0,9 x b1 ≤ b2 ≤ 1,1 x b1.The gaps formed between two adjacent clamping segments are preferably all of the same design and can have a width b 3 measured in the circumferential direction on the radial outer side that is approximately as large as the width b 1 of the clamping segments measured in the circumferential direction. Preferably, the following applies: 0.9 xb 1 ≤ b 2 ≤ 1.1 xb 1 .

In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, dass die Spannsegmente und die Stege als einstückiges Bauteil ausgebildet sind. Insbesondere sind die Spannelemente und die Stege als einstückiges Kunststoff-Teil ausgestaltet, das gespritzt oder durch einen 3D-Druck hergestellt sein kann.In a preferred embodiment of the invention, it is provided that the clamping segments and the webs are designed as a one-piece component. In particular, the clamping elements and the webs are designed as a one-piece plastic part that can be injection-molded or produced by 3D printing.

Um die Spannkraft des Spannkörpers verändern oder anpassen zu können, kann in Weiterbildung der Erfindung vorgesehen sein, dass auf der radialen Außenseite des Spannkörpers zumindest ein Federelement angeordnet ist, mittels dessen auf den Spannkörper einer radial nach innen gerichtete Federkraft aufbringbar ist. Als Federelement kann eine den Spannkörper vorzugsweise vollständig umgreifende Ringfeder vorgesehen sein.In order to be able to change or adapt the clamping force of the clamping body, a further development of the invention can provide that at least one spring element is arranged on the radial outside of the clamping body, by means of which a spring force directed radially inwards can be applied to the clamping body. The spring element can be a An annular spring should preferably be provided which completely surrounds the clamping body.

Die Spannkraft des Spannkörpers ist davon abhängig, wo das Federelement an dem Spannkörper angreift. Um das Federelement sicher zu positionieren, kann auf der Außenseite des Spannkörpers zumindest eine Nut ausgebildet sein, in die das Federelement eingesetzt ist. Vorzugsweise ist die Nut von mehreren in den Spannsegmenten ausgebildeten Teil-Nuten gebildet, wobei eine direkte Anlage des Federelementes an einem der Stege vermieden sein sollte.The clamping force of the clamping body depends on where the spring element engages the clamping body. In order to position the spring element securely, at least one groove can be formed on the outside of the clamping body, into which the spring element is inserted. The groove is preferably formed by several partial grooves formed in the clamping segments, whereby direct contact of the spring element with one of the webs should be avoided.

Der Spannkörper kann an seinem oberen Ende eine konische oder trichterförmige Querschnittserweiterung seines inneren Querschnitts aufweisen, um das Einführen der Tube in den Spannkörper zu erleichtern.The clamping body may have a conical or funnel-shaped cross-sectional extension of its inner cross-section at its upper end to facilitate the insertion of the tube into the clamping body.

Weitere Einzelheiten und Merkmale der Erfindung sind aus der nachfolgenden Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung ersichtlich. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines erfindungsgemäßen Tubenhalters mit eingesetzter Tube,
Fig. 2
einen vertikalen Längsschnitt durch den Tubenhalter gemäß Fig. 1,
Fig. 3
den Tubenhalter gemäß Fig. 2 ohne Tube und
Fig. 4
eine perspektivische, vergrößerte Darstellung eines Spannkörpers.
Further details and features of the invention will become apparent from the following description of an embodiment with reference to the drawing.
Fig.1
a perspective view of a tube holder according to the invention with inserted tube,
Fig.2
a vertical longitudinal section through the tube holder according to Fig.1 ,
Fig.3
the tube holder according to Fig.2 without tube and
Fig.4
a perspective, enlarged view of a clamping body.

Ein in Fig. 1 dargestellter Tubenhalter 10 besitzt einen becherförmigen Grundkörper 11, der in seinem oberen Bereich einen ringförmigen Flansch 14 trägt. In dem Grundkörper 11 ist eine nach oben offene, schachtartige Tubenaufnahme 12 ausgebildet, deren Innendurchmesser sich im oberen Bereich unter Bildung einer Einführschräge 13 konisch erweitert.A in Fig.1 The tube holder 10 shown has a cup-shaped base body 11, which has an annular flange 14 in its upper region. In the base body 11, an upwardly open, shaft-like tube receptacle 12 is formed, the inner diameter of which widens conically in the upper region to form an insertion bevel 13.

Wie Fig. 1 zeigt, kann in die Tubenaufnahme 12 eine Tube T vertikal von oben eingesteckt werden. Eine Längsachse L des Tubenhalters 10 fällt dabei mit der Längsachse der Tube T zusammen.How Fig.1 shows, a tube T can be inserted vertically from above into the tube holder 12. A longitudinal axis L of the tube holder 10 coincides with the longitudinal axis of the tube T.

Im mittleren Bereich des Grundkörpers 11 ist in der Innenwandung der Tubenaufnahme 12 eine umlaufende Ringkammer 15 ausgebildet, so dass die Tubenaufnahme 12 im Bereich der Ringkammer 15 einen vergrößerten Innendurchmesser aufweist. In die Ringkammer 15 ist ein hülsenförmiger Spannkörper 16 eingesetzt.In the middle area of the base body 11, a circumferential annular chamber 15 is formed in the inner wall of the tube holder 12, so that the tube holder 12 has an enlarged inner diameter in the area of the annular chamber 15. A sleeve-shaped clamping body 16 is inserted into the annular chamber 15.

In die Wandung des Grundkörpers 11 sind zwei diametral gegenüberliegende Durchgangsbohrungen 21 eingebracht. In jede Durchgangsbohrung 21 kann von der Außenseite des Grundkörpers 11 eine Schraube 20 so eingeschraubt werden, dass sie mit ihrem vorderen radial inneren Ende in die Ringkammer 15 hervorsteht und mit dem in die Ringkammer 15 eingesetzten Spannkörper 16 in Eingriff kommt. Die Schraube 20 bildet somit ein Sperrelement 19, das den Spannkörper 16 in der Ringkammer 15 fixiert.Two diametrically opposed through holes 21 are made in the wall of the base body 11. A screw 20 can be screwed into each through hole 21 from the outside of the base body 11 in such a way that its front radially inner end protrudes into the annular chamber 15 and engages with the clamping body 16 inserted into the annular chamber 15. The screw 20 thus forms a locking element 19 which fixes the clamping body 16 in the annular chamber 15.

Der Spannkörper 16 ist in Fig. 4 im Detail dargestellt. Daraus ist ersichtlich, dass der Spannkörper 16 mehrere leistenförmige Spannsegmente 22 aufweist, die sich alle in axialer Richtung erstrecken und über den Umfang des Spannkörpers 16 so gleichverteilt angeordnet sind, dass zwischen zwei unmittelbar benachbarten Spannsegmenten 22 jeweils ein sich axial erstreckender Zwischenraum 24 gebildet ist. In jedem Zwischenraum 24 ist genau ein Steg 23 angeordnet, der den Zwischenraum 24 überbrückt und die an den Zwischenraum 24 angrenzenden Spannsegmente 22 verbindet. Einige Stege 23 sind dabei am axial oberen Ende des jeweiligen Zwischenraums 24 angeordnet, während andere Stege 23 am axial unteren Ende des jeweiligen Zwischenraums 24 angeordnet sind, wobei die am unteren Ende des Zwischenraums 24 angeordneten Stege 23 und die am oberen Ende des Zwischenraums 24 angeordneten Stege 23 in Umfangsrichtung des Spannkörpers 16 abwechselnd angeordnet sind, so dass zwei benachbarte Spannsegmente 22 und der sie verbindende Steg 23 eine U-förmige Konfigurationen bilden, die in Umfangsrichtung alternierend nach oben beziehungsweise nach unten öffnen.The clamping body 16 is in Fig.4 shown in detail. It can be seen that the clamping body 16 has several strip-shaped clamping segments 22, which all extend in the axial direction and over the circumference of the clamping body 16 are arranged so evenly distributed that an axially extending intermediate space 24 is formed between two immediately adjacent clamping segments 22. In each intermediate space 24 there is exactly one web 23 which bridges the intermediate space 24 and connects the clamping segments 22 adjacent to the intermediate space 24. Some webs 23 are arranged at the axially upper end of the respective intermediate space 24, while other webs 23 are arranged at the axially lower end of the respective intermediate space 24, wherein the webs 23 arranged at the lower end of the intermediate space 24 and the webs 23 arranged at the upper end of the intermediate space 24 are arranged alternately in the circumferential direction of the clamping body 16, so that two adjacent clamping segments 22 and the web 23 connecting them form a U-shaped configuration which opens alternately upwards and downwards in the circumferential direction.

Die Spannsegmente 22 sind alle gleich ausgebildet und weisen auf ihrer radialen Außenseite in Umfangsrichtung eine Breite b1 auf, wie es durch den Doppelpfeil b1 in Fig. 4 dargestellt ist.The clamping segments 22 are all of the same design and have a width b 1 on their radial outer side in the circumferential direction, as indicated by the double arrow b 1 in Fig.4 is shown.

Die Zwischenräume 24 sind alle gleich ausgebildet und weisen auf ihrer radialen Außenseite in Umfangsrichtung eine Breite b3, wie es durch den Doppelpfeil b3 in Fig. 4 dargestellt ist, wobei die Breite b1 der Spannsegmente etwa gleich der Breite b3 der Zwischenräume 24 ist. Vorzugsweise gilt: 0,9 x b1 ≤ b3 ≤ 1,1 x b1.The gaps 24 are all of the same design and have a width b 3 on their radial outer side in the circumferential direction, as indicated by the double arrow b 3 in Fig.4 is shown, wherein the width b 1 of the clamping segments is approximately equal to the width b 3 of the intermediate spaces 24. Preferably: 0.9 x b1 ≤ b 3 ≤ 1.1 xb 1 .

Die Stege 23 weisen auf ihrer radialen Außenseite in Axialrichtung eine Breite b2 auf, wie es durch den Doppelpfeil d2 in Fig. 4 dargestellt ist.The webs 23 have a width b 2 on their radial outer side in the axial direction, as indicated by the double arrow d 2 in Fig.4 is shown.

Die Breite b2 des Steges ist etwa gleich der Breite b1 der Spannsegments 22, wobei vorzugsweise gilt 0,9 x b1 ≤ b2 ≤ 1,1 x b1.The width b 2 of the web is approximately equal to the width b 1 of the clamping segment 22, whereby preferably 0.9 xb 1 ≤ b 2 ≤ 1.1 xb 1 applies.

Der innere Querschnitt des Spannkörpers 16 ist an seinem axialen oberen Ende unter Bildung einer Einführschräge 25 konisch oder trichterförmig aufgeweitet.The inner cross-section of the clamping body 16 is widened conically or funnel-shaped at its axial upper end to form an insertion bevel 25.

Auf der radialen Außenseite des Spannkörpers 1 ist eine um den Spannkörper 16 umlaufende Ringnut 18 ausgebildet, in die ein Federelement 17, beispielsweise in Form einer umlaufenden Ringfeder eingesetzt werden kann, wie es in den Fig. 2 und 3 dargestellt ist.On the radial outside of the clamping body 1, an annular groove 18 is formed around the clamping body 16, into which a spring element 17, for example in the form of a circumferential ring spring, can be inserted, as shown in the Fig.2 and 3 is shown.

Wenn die Tube T von oben in die Tubenaufnahme 12 eingeführt wird, tritt sie an der Einführschräge 25 in den hülsenförmigen Spannkörper 16 ein, wodurch dieser radial nach außen elastisch aufgeweitet wird. Durch die Aufweitung des Spannkörpers 16 wird auch das Federelement 17 radial aufgeweitet. In Folge der elastischen Verformung des Spannkörpers 16 und der Verformung des Federelementes 17 wird als Reaktion eine radial nach innen gerichtete Spannkraft auf die Tube T aufgebracht, die dadurch sicher in dem Tubenhalter 11 festgeklemmt und gehalten ist.When the tube T is inserted into the tube holder 12 from above, it enters the sleeve-shaped clamping body 16 at the insertion bevel 25, causing the latter to expand elastically radially outwards. The expansion of the clamping body 16 also causes the spring element 17 to expand radially. As a result of the elastic deformation of the clamping body 16 and the deformation of the spring element 17, a radially inward clamping force is applied to the tube T as a reaction, which is thereby securely clamped and held in the tube holder 11.

Claims (12)

  1. Tube holder (10) for a tube filling machine, having a main body (11) which comprises an upwardly open, shaft-like tube receptacle (12), into which a tube (T) can be inserted with its one axial end region, and having a sleeve-shaped clamping body (16) which is arranged in the tube receptacle (12) and can be brought into contact with the outer wall of the tube (T) and by means of which a radially directed clamping force can be applied to the outer wall of the tube (T), characterized in that the clamping body (16) comprises a plurality of clamping portions (22) which are arranged distributed over the circumference of the clamping body (16), an intermediate space (24) being formed between each two immediately adjacent clamping portions (22), in that in each intermediate space (24) at least one web (23) is arranged which bridges the intermediate space (24) and connects the clamping portions (22) adjacent to the intermediate space (24), and in that those webs (23) which are arranged in immediately adjacent intermediate spaces (24) in the circumferential direction of the clamping body 16 are arranged offset from one another in the axial direction, an annular chamber (15) being formed in the inner wall of the tube receptacle (12), into which chamber the clamping body (16) is completely inserted, and the clamping body (16) being secured in the axial direction in the tube receptacle (12) by means of at least one locking element (19).
  2. Tube holder according to claim 1, characterized in that the clamping portions (22) are strip-shaped.
  3. Tube holder according to either claim 1 or claim 2, characterized in that the clamping portions extend in the axial direction.
  4. Tube holder according to any of claims 1 to 3, characterized in that the clamping portions (22) extend from the upper end of the clamping body (16) to its lower end.
  5. Tube holder according to any of claims 1 to 4, characterized in that the clamping portions (22) extend in parallel to one another.
  6. Tube holder according to any of claims 1 to 5, characterized in that exactly one web (23) is arranged in each intermediate space (24).
  7. Tube holder according to claim 6, characterized in that the web (23) is arranged at the upper or lower axial end of the intermediate space (24).
  8. Tube holder according to any of claims 1 to 7, characterized in that the clamping portions (22) and the webs (23) are designed as a one-piece component.
  9. Tube holder according to any of claims 1 to 8, characterized in that at least one spring element (17) is arranged on the radial outer side of the clamping body (16), by means of which a radially inwardly directed spring force can be applied to the clamping body (16).
  10. Tube holder according to claim 9, characterized in that the spring element (17) is an annular spring engaging around the clamping body (16).
  11. Tube holder according to either claim 9 or claim 10, characterized in that on the outside of the clamping body (16) at least one groove (18) is formed, into which the spring element (17) is inserted.
  12. Tube holder according to any of claims 1 to 11, characterized in that the locking element (19) is a screw (20) which sits in a through-hole (21) formed in the main body (11).
EP21207081.7A 2020-12-10 2021-11-09 Tube holder Active EP4011788B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020132995.4A DE102020132995A1 (en) 2020-12-10 2020-12-10 tube holder

Publications (2)

Publication Number Publication Date
EP4011788A1 EP4011788A1 (en) 2022-06-15
EP4011788B1 true EP4011788B1 (en) 2024-08-14

Family

ID=78592585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21207081.7A Active EP4011788B1 (en) 2020-12-10 2021-11-09 Tube holder

Country Status (2)

Country Link
EP (1) EP4011788B1 (en)
DE (1) DE102020132995A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1275438B (en) 1966-02-25 1968-08-14 Karlsruhe Augsburg Iweka Self-centering holder for tubes on a tube filling and closing machine
GB2112483A (en) * 1981-12-30 1983-07-20 Talbot And Co Ltd F W Pipe joint
DE19755743C1 (en) * 1997-12-16 1999-03-25 Festo Ag & Co Connector for pressure hoses
CN201800931U (en) 2010-05-13 2011-04-20 京伦精机(上海)有限公司 Dismountable self-adapting fixture
DE102013227149A1 (en) 2013-12-23 2015-06-25 Gustav Obermeyer GmbH & Co. KG Tube holder for a tube filling machine
DE102015106437A1 (en) * 2015-04-27 2016-10-27 Röhm Gmbh Segment collet
DE102018131974A1 (en) 2018-12-12 2020-06-18 Iwk Verpackungstechnik Gmbh Tube holder for a tube filling machine

Also Published As

Publication number Publication date
EP4011788A1 (en) 2022-06-15
DE102020132995A1 (en) 2022-06-15

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