EP1724002B1 - Integrated shot counter for a mixing head. - Google Patents

Integrated shot counter for a mixing head. Download PDF

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Publication number
EP1724002B1
EP1724002B1 EP06113066A EP06113066A EP1724002B1 EP 1724002 B1 EP1724002 B1 EP 1724002B1 EP 06113066 A EP06113066 A EP 06113066A EP 06113066 A EP06113066 A EP 06113066A EP 1724002 B1 EP1724002 B1 EP 1724002B1
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EP
European Patent Office
Prior art keywords
mixing head
head according
counter
control
cleaning piston
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Not-in-force
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EP06113066A
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German (de)
French (fr)
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EP1724002A2 (en
EP1724002A3 (en
Inventor
Ernst Berchtenbreiter
Wolfgang Soechtig
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KraussMaffei Technologies GmbH
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KraussMaffei Technologies GmbH
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Priority to PL06113066T priority Critical patent/PL1724002T3/en
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Publication of EP1724002A3 publication Critical patent/EP1724002A3/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/105—Mixing heads, i.e. compact mixing units or modules, using mixing valves for feeding and mixing at least two components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor

Definitions

  • the present invention relates to a mixing head with an integrated shot counter.
  • a metering and mixing device for liquids with supply circuits for each liquid each supply circuit comprising a container and a metering device connected to the container.
  • a valve means is provided between each container and the associated metering device, which liquid can lead back into or out of a container.
  • a mixing head receives the various fluids through the valves.
  • the metering devices are operated synchronously and the valve means are synchronous with each other and adjustable to the operation of the metering devices.
  • EP 0 753 034 discloses an apparatus for mixing and dispensing reactive fluids wherein feedstock from various sources is supplied via valve means and injectors to a mixing head which can provide a continuous stream of reaction material. Similar to the previous one GB 1 305 630 Means are provided to synchronize the operation of the valve means with the movement of the mixing head, so that the reaction mixture can be continuously introduced into a mold.
  • mixing heads for example, for the polyurethane processing, it is known to determine the number of material discharges, which usually corresponds to the number of parts produced.
  • a material discharge for a part is commonly referred to as a "shot”.
  • the warranty periods for the mixing heads usually refer to the number of such shots.
  • the opening and closing operation of the mixing head (for example, the operation of a control or cleaning piston) is detected and transmitted to an external controller. Via a counter in the external control, the total number of shots for a mixing head is then detected and stored in a memory of the external control.
  • the disadvantage here is that there is no direct assignment of the meter reading information to a mixing head. This is particularly problematic when a customer exchanges a mixing head. In this case, he would also have to determine the current meter reading from the external controller and assign it to the removed mixing head. Only then is the actual load of the mixing head known by the number of shots. When it comes to warranty cases, the manufacturers of such mixing heads rely on the honesty and reliability of the customers. But even with reliable customers, it is always a problem that a used mixing head the scope of use, ie the number of shots, can not always be properly assigned.
  • Object of the present invention is therefore to provide a mixing head according to claim 1, wherein the o. Problems can be avoided.
  • a shot counter with a non-volatile memory in the mixing head in particular in the mechanics of the mixing head, is integrated.
  • means are provided to determine the operation of the mixing head, for example, the movement of a control or cleaning piston and pass it on to an electrical detection and storage device.
  • the electrical detection and storage device has a counter that counts the number of shots and this information in a non-volatile storage medium or storage medium stores.
  • a sensor is provided as means for determining the operation of a mixing head, for example for determining the movement of the control or cleaning piston.
  • an electrical or hydraulic signal for the mixing head can be evaluated.
  • the means may also be current, voltage or pressure sensors. But other investigative possibilities are conceivable.
  • a particularly preferred embodiment of a sensor is a switch, for example a reed switch. Such a switch can be arranged in the region of the cylinder cover of a mixing head or a housing for the control or cleaning piston.
  • an interface for producing a communication connection is preferably provided. So that no manipulation can be made, the electrical detection and storage device is designed such that the storage means can only be read externally (read-only counter). Thus, no writing or overwriting of the memory contents is possible.
  • a separate power supply is provided with a battery in the mixing head, which serves for the operation of the electrical detection and storage device and / or for buffering the storage means.
  • a lithium battery can buffer up to 30 years.
  • the electrical detection and storage device firmly integrated into the housing of the mixing head, in particular poured (eg in a cylinder cover of the control or cleaning piston), so the unit can not be removed without damage and thus not easily manipulated.
  • Another measure to prevent manipulation is the assignment of a unique, the mixing head identifying Information, in the aforementioned or another storage means. For example, a manufacturer-unique identification number can be burned into the counter.
  • the storage of further information in the storage means or an additional storage means is readily possible. For example, in such a memory it is possible to store, for example, short textual information containing a cv reference for the mixing head. Thus, individual data for repairs and associated counter readings can be stored. With this procedure, it is possible to document the history of a mixing head without any gaps.
  • the cylinder cover 10 shown in the figures has a recess in the upper region, in which a circuit board 12 is arranged.
  • the circuit board 12 is provided with an integrated circuit 14 (IC) having a counter and a memory.
  • IC integrated circuit
  • the board 12 is embedded inextricably in the recess. Via wire contacts, the circuit board 12 is connected to a separate Ansteckbuchse 16, which acts as an interface to an external controller. Through this interface, the external controller can be connected to the present electronic detection and storage device.
  • the board is also connected to a reed switch 22, which is arranged in a dip tube 20 and cooperates with an underlying magnet 24.
  • the dip tube 20 is directed in the direction of the control and cleaning piston, not shown.
  • the cylinder cover 10 is placed on the housing of a control and cleaning piston, wherein the housing of the control and cleaning piston in Fig. 2 would connect below.
  • control and cleaning piston If the control and cleaning piston, not shown, actuated by a hydraulic system, it moves between an upper and a lower position. In the lower position, the mixing head is closed and there is no discharge. In the upper position of the mixing head is open and there is a discharge. Thus every movement from bottom to top indicates a shot (material discharge). The movement of the control and cleaning piston and thus the initiation of a shot is detected by the reed switch 22. A corresponding signal is forwarded to the integrated circuit 14. The integrated circuit in the 14th integrated counter increases the number of shots by one with each shot and stores this value in the integrated memory.
  • a 64-bit long identification number is included in the memory of the integrated circuit 14, which allows a unique assignment of the counter to the serial number of the mixing head.
  • a shot counter with a non-volatile memory is integrated in the mechanics of the mixing head, which only allows read access.
  • each counting pulse is also processed in the integrated circuit 14 and assigned directly to the mixing head. If a mixing head is to be repaired, the meter reading can be read out via an interface, for example a serial interface, thus determining the scope of use.
  • the memory in this case has its own memory area in which short text files can be stored.
  • Information about the curriculum vitae of the mixing head is incorporated in these text files, namely the data of individual repairs and the corresponding meter readings.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Storage Device Security (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Stored Programmes (AREA)

Abstract

A mixing head with an integral counter for units produced, comprises an arrangement (22,24) for determining the operation of the head, an electrical detection and storage unit (12,14), and motion detectors connected to a control or cleansing piston. The counter is an incremental counter. The storage agent is non-volatile. The motion detectors consist of a sensor, eg a Reed switch. The detection and storage unit is read only. A battery is used to operate the detection and storage unit, and the unit is moulded into the mixing head housing or in a lid. Additional information can be stored in a second storage unit.

Description

Die vorliegende Erfindung betrifft einen Mischkopf mit einem integrierten Schusszähler.The present invention relates to a mixing head with an integrated shot counter.

Aus der GB 1 305 630 ist eine Zumess- und Mischeinrichtung für Flüssigkeiten mit Versorgungskreisen für jede Flüssigkeit bekannt, von denen jeder Versorgungskreis einen Behälter und eine Zumessvorrichtung aufweist, die mit dem Behälter verbunden ist. Überdies ist zwischen jedem Behälter und der dazugehörigen Zumessvorrichtung ein Ventilmittel vorgesehen, welche Flüssigkeit in einen Behälter zurückführen oder aus ihm ausleiten kann. Ein Mischkopf erhält die verschiedenen Flüssigkeiten über die Ventile. Die Zumessvorrichtungen werden synchron betrieben und die Ventilmittel sind synchron zueinander und zu dem Betrieb der Zumessvorrichtungen einstellbar.From the GB 1 305 630 For example, there is known a metering and mixing device for liquids with supply circuits for each liquid, each supply circuit comprising a container and a metering device connected to the container. Moreover, a valve means is provided between each container and the associated metering device, which liquid can lead back into or out of a container. A mixing head receives the various fluids through the valves. The metering devices are operated synchronously and the valve means are synchronous with each other and adjustable to the operation of the metering devices.

Auch in der US 4,165,187 ist eine Vorrichtung zum Mischen und Ausbringen von reaktiven Fluiden beschrieben, wobei einem Mischkopf, der einen kontinuierlichen Strom von Reaktionsmaterial zu Verfügung stellen kann, Ausgangsmaterial von verschiedenen Quellen über Ventilmittel und Einspritzdüsen zugeführt wird. Ähnlich wie auch bei der vorhergehenden GB 1 305 630 sind Mittel vorgesehen, um den Betrieb der Ventilmittel mit der Bewegung des Mischkopfes zu synchronisieren, so dass das Reaktionsgemisch kontinuierlich in ein Formwerkzeug eingebracht werden kann.Also in the US 4,165,187 EP 0 753 034 discloses an apparatus for mixing and dispensing reactive fluids wherein feedstock from various sources is supplied via valve means and injectors to a mixing head which can provide a continuous stream of reaction material. Similar to the previous one GB 1 305 630 Means are provided to synchronize the operation of the valve means with the movement of the mixing head, so that the reaction mixture can be continuously introduced into a mold.

Bei Mischköpfen, beispielsweise für die Polyurethanverarbeitung, ist es bekannt die Zahl der Materialausträge, die zumeist der Anzahl der produzierten Teile entspricht, zu ermitteln. Ein Materialaustrag für ein Teil wird üblicherweise als "Schuss" bezeichnet. Die Gewährleistungsfristen für die Mischköpfe beziehen sich in der Regel auf die Anzahl solcher Schüsse.For mixing heads, for example, for the polyurethane processing, it is known to determine the number of material discharges, which usually corresponds to the number of parts produced. A material discharge for a part is commonly referred to as a "shot". The warranty periods for the mixing heads usually refer to the number of such shots.

Bei den bisherigen Lösungen zum Zählen der von einem Mischkopf geleisteten Schüsse wird der Öffnungs- und Schließvorgang des Mischkopfs (beispielsweise die Betätigung eines Steuer- oder Reinigungskolbens) erfasst und an eine externe Steuerung weitergegeben. Über einen Zähler in der externen Steuerung wird dann die Gesamtanzahl der Schüsse für einen Mischkopf erfasst und in einem Speicher der externen Steuerung abgespeichert.In previous solutions for counting the shots made by a mixing head, the opening and closing operation of the mixing head (for example, the operation of a control or cleaning piston) is detected and transmitted to an external controller. Via a counter in the external control, the total number of shots for a mixing head is then detected and stored in a memory of the external control.

Nachteilig hierbei ist, dass es keine direkte Zuordnung der Zählerstandsinformation zu einem Mischkopf gibt. Besonders problematisch ist dies dann, wenn ein Kunde einen Mischkopf austauscht. Er müsste in diesem Fall auch den aktuellen Zählerstand aus der externen Steuerung ermitteln und dem ausgebauten Mischkopf fest zuordnen. Nur dann ist auch die tatsächliche Belastung des Mischkopfes durch die Anzahl der Schüsse bekannt. Wenn es daher um Garantiefälle geht, sind die Hersteller solcher Mischköpfe auf die Ehrlichkeit und Zuverlässigkeit der Kunden angewiesen. Aber auch bei an sich zuverlässigen Kunden stellt es immer wieder ein Problem dar, dass einem gebrauchten Mischkopf der Gebrauchsumfang, also die Schusszahl, nicht immer einwandfrei zugeordnet werden kann.The disadvantage here is that there is no direct assignment of the meter reading information to a mixing head. This is particularly problematic when a customer exchanges a mixing head. In this case, he would also have to determine the current meter reading from the external controller and assign it to the removed mixing head. Only then is the actual load of the mixing head known by the number of shots. When it comes to warranty cases, the manufacturers of such mixing heads rely on the honesty and reliability of the customers. But even with reliable customers, it is always a problem that a used mixing head the scope of use, ie the number of shots, can not always be properly assigned.

Aufgabe der vorliegenden Erfindung ist es daher, einen Mischkopf nach Anspruch 1 anzugeben, bei dem die o. g. Probleme vermieden werden können.Object of the present invention is therefore to provide a mixing head according to claim 1, wherein the o. Problems can be avoided.

Die Lösung dieser Aufgabe wird dadurch erreicht, dass ein Schusszähler mit einem nichtflüchtigen Speicher in den Mischkopf, insbesondere in die Mechanik des Mischkopfes, integriert ist. Insbesondere sind Mittel vorgesehen, um den Betrieb des Mischkopfes, beispielsweise die Bewegung eines Steuer- oder Reinigungskolbens zu ermitteln und an eine elektrische Erfassungs- und Speichereinrichtung weiterzugeben. Die elektrische Erfassungs- und Speichereinrichtung weist einen Zähler auf, der die Anzahl der Schüsse mitzählt und diese Informationen in einem nichtflüchtigen Speichermittel oder Speichermedium abspeichert. Vorzugsweise ist als Mittel zur Bestimmung des Betriebs eines Mischkopfes, beispielsweise zur Ermittlung der Bewegung des Steueroder Reinigungskolbens, ein Sensor vorgesehen. Alternativ kann auch ein elektrisches oder hydraulisches Signal für den Mischkopf ausgewertet werden. In diesem Fall können die Mittel auch Strom-, Spannungs-oder Drucksensoren sein. Aber auch andere Ermittlungsmöglichkeiten sind vorstellbar. Eine besonders bevorzugte Ausführungsform eines Sensors ist ein Schalter, beispielsweise ein Reed-Schalter. Ein solche Schalter kann im Bereich des Zylinderdeckels eines Mischkopfs oder eines Gehäuses für den Steuer- oder Reinigungskolben angeordnet sein.The solution to this problem is achieved in that a shot counter with a non-volatile memory in the mixing head, in particular in the mechanics of the mixing head, is integrated. In particular, means are provided to determine the operation of the mixing head, for example, the movement of a control or cleaning piston and pass it on to an electrical detection and storage device. The electrical detection and storage device has a counter that counts the number of shots and this information in a non-volatile storage medium or storage medium stores. Preferably, a sensor is provided as means for determining the operation of a mixing head, for example for determining the movement of the control or cleaning piston. Alternatively, an electrical or hydraulic signal for the mixing head can be evaluated. In this case, the means may also be current, voltage or pressure sensors. But other investigative possibilities are conceivable. A particularly preferred embodiment of a sensor is a switch, for example a reed switch. Such a switch can be arranged in the region of the cylinder cover of a mixing head or a housing for the control or cleaning piston.

Um die Information aus der elektrischen Erfassungs- und Speichereinrichtung auslesen zu können, ist vorzugsweise eine Schnittstelle zur Herstellung einer Kommunikationsverbindung vorgesehen. Damit keine Manipulation vorgenommen werden kann, ist die elektrische Erfassungs- und Speichereinrichtung derart ausgebildet, dass das Speichermittel von extern lediglich ausgelesen werden kann (Read-Only-Counter). Somit ist kein Beschreiben oder Überschreiben des Speicherinhalts möglich.In order to be able to read out the information from the electrical detection and storage device, an interface for producing a communication connection is preferably provided. So that no manipulation can be made, the electrical detection and storage device is designed such that the storage means can only be read externally (read-only counter). Thus, no writing or overwriting of the memory contents is possible.

Um den dauerhaften Betrieb der elektrischen Erfassungs- und Speichereinrichtung sicherzustellen, ist im Mischkopf eine separate Stromversorgung mit einer Batterie vorgesehen, die zum Betrieb der elektrischen Erfassungs- und Speichereinrichtung und/oder zur Pufferung des Speichermittels dient. Beispielsweise ist mit einer Lithium-Batterie eine Pufferung über einen Zeitraum von bis zu 30 Jahren möglich.In order to ensure the permanent operation of the electrical detection and storage device, a separate power supply is provided with a battery in the mixing head, which serves for the operation of the electrical detection and storage device and / or for buffering the storage means. For example, a lithium battery can buffer up to 30 years.

Wird die elektrische Erfassungs- und Speichereinrichtung fest in das Gehäuse des Mischkopfs integriert, insbesondere eingegossen, (z.B. in einem Zylinderdeckel des Steuer- oder Reinigungskolbens), so lässt sich die Einheit nicht ohne Beschädigung entfernen und damit auch nicht ohne weiteres manipulieren. Eine weitere Maßnahme, um einer Manipulation vorzubeugen, ist die Zuordnung einer eindeutigen, den Mischkopf identifizierenden Information, in dem vorgenannten oder einem anderen Speichermittel. Beispielsweise kann eine vom Hersteller eindeutige Identifikationsnummer in den Zähler eingebrannt werden. Auch die Abspeicherung weiterer Informationen im Speichermittel oder einem zusätzlichen Speichermittel ist ohne weiteres möglich. So kann man in einem solchen Speicher zusätzlich beispielsweise kurze Textinformationen ablegen, die einen Lebenslaufhinweis für den Mischkopf enthalten. So können einzelne Daten zu Reparaturen und dazugehörige Zählerstände abgelegt sein. Mit dieser Vorgehensweise ist es möglich, die Historie eines Mischkopfs lückenlos zu dokumentieren.If the electrical detection and storage device firmly integrated into the housing of the mixing head, in particular poured (eg in a cylinder cover of the control or cleaning piston), so the unit can not be removed without damage and thus not easily manipulated. Another measure to prevent manipulation is the assignment of a unique, the mixing head identifying Information, in the aforementioned or another storage means. For example, a manufacturer-unique identification number can be burned into the counter. The storage of further information in the storage means or an additional storage means is readily possible. For example, in such a memory it is possible to store, for example, short textual information containing a cv reference for the mixing head. Thus, individual data for repairs and associated counter readings can be stored. With this procedure, it is possible to document the history of a mixing head without any gaps.

Insgesamt ist mit der beschriebenen Erfindung der Gebrauchsumfang eines Mischkopfes ohne weiteres festzustellen. Überdies können Manipulationen im Wesentlichen ausgeschlossen werden, da der Betriebsumfang eindeutig einem bestimmten Mischkopf zuordenbar ist. Auch ein unbefugter Austausch der jeweiligen Einrichtung ist nicht möglich, da dann die Identifikationsnummer nicht mehr zu der Seriennummer eines Mischkopfes passen würde.Overall, the scope of use of a mixing head is readily ascertainable with the described invention. Moreover, manipulations can be essentially ruled out since the scope of operation is clearly attributable to a particular mixing head. An unauthorized replacement of the respective device is not possible because then the identification number would no longer fit the serial number of a mixing head.

Nachfolgend wir die vorliegende Erfindung anhand eines Ausführungsbeispiels näher erläutert. Dabei zeigen die Zeichnungen in:

Fig. 1:
eine Draufsicht in schematischer Weise auf den Zylinderdeckel eines Mischkopfs und
Fig. 2:
eine schematische Schnittdarstellung entlang Linie A-A des Zylinderdeckels in Fig. 1.
In the following we will explain the present invention with reference to an embodiment. The drawings show in:
Fig. 1:
a plan view in a schematic manner on the cylinder cover of a mixing head and
Fig. 2:
a schematic sectional view taken along line AA of the cylinder cover in Fig. 1 ,

In den beiden gezeigten Figuren ist lediglich ein Zylinderdeckel für den in einen Mischkopf integrierten Steuer- und Reinigungskolben dargestellt. Generell sind solche Mischköpfe mit entsprechenden Steuerkolben bekannt, so dass auf diese Konstruktionsteile nicht näher eingegangen werden muss. Für die vorliegende Erfindung ist lediglich die Ausgestaltung des Zylinderdeckels von besonderem Interesse.In the two figures shown, only a cylinder cover for the integrated into a mixing head control and cleaning piston is shown. In general, such mixing heads are known with corresponding control piston, so that these construction parts need not be discussed in detail. For the present invention is merely the embodiment the cylinder cover of particular interest.

Der in den Figuren dargestellte Zylinderdeckel 10 besitzt im oberen Bereich eine Ausnehmung, in der eine Platine 12 angeordnet ist. Die Platine 12 ist mit einem integrierten Schaltkreis 14 (IC), der einen Zähler und einen Speicher besitzt. Überdies befindet sich auf der Platine eine die Stromversorgung über ca. 30 Jahre sicherstellende Lithium-Batterie.The cylinder cover 10 shown in the figures has a recess in the upper region, in which a circuit board 12 is arranged. The circuit board 12 is provided with an integrated circuit 14 (IC) having a counter and a memory. In addition, there is a lithium battery that ensures the power supply for approximately 30 years on the board.

Die Platine 12 ist in der Ausnehmung unlösbar eingegossen. Über Drahtkontakte ist die Platine 12 mit einer separaten Ansteckbuchse 16 verbunden, die als Schnittstelle zu einer externen Steuerung agiert. Über diese Schnittstelle kann die externe Steuerung mit der vorliegenden elektronischen Erfassungs- und Speichereinrichtung verbunden werden.The board 12 is embedded inextricably in the recess. Via wire contacts, the circuit board 12 is connected to a separate Ansteckbuchse 16, which acts as an interface to an external controller. Through this interface, the external controller can be connected to the present electronic detection and storage device.

Die Platine ist überdies mit einem Reedschalter 22 verbunden, der in einem Tauchrohr 20 angeordnet ist und mit einem darunter liegenden Magneten 24 zusammenwirkt. Das Tauchrohr 20 ist in Richtung des nicht dargestellten Steuer- und Reinigungskolbens gerichtet.The board is also connected to a reed switch 22, which is arranged in a dip tube 20 and cooperates with an underlying magnet 24. The dip tube 20 is directed in the direction of the control and cleaning piston, not shown.

Im zusammengebauten Zustand ist der Zylinderdeckel 10 auf das Gehäuse eines Steuer- und Reinigungskolbens aufgesetzt sein, wobei sich das Gehäuse des Steuer- und Reinigungskolbens in Fig. 2 unten anschließen würde.In the assembled state, the cylinder cover 10 is placed on the housing of a control and cleaning piston, wherein the housing of the control and cleaning piston in Fig. 2 would connect below.

Wird der nicht dargestellte Steuer- und Reinigungskolben über eine Hydraulik betätigt, so bewegt er sich zwischen einer oberen und einer unteren Position. In der unteren Position ist der Mischkopf geschlossen und es erfolgt kein Austrag. In der oberen Position ist der Mischkopf geöffnet und es erfolgt ein Austrag. Damit zeigt jede Bewegung von unten nach oben einen Schuss (Materialaustrag) an. Die Bewegung des Steuer- und Reinigungskolbens und damit die Einleitung eines Schusses wird von dem Reedschalter 22 detektiert. Ein entsprechendes Signal wird an den integrierten Schaltkreis 14 weitergegeben. Der im integrierten Schaltkreis 14 integrierte Zähler erhöht bei jedem Schuss die Schusszahl um eins und speichert diesen Wert im integrierten Speicher.If the control and cleaning piston, not shown, actuated by a hydraulic system, it moves between an upper and a lower position. In the lower position, the mixing head is closed and there is no discharge. In the upper position of the mixing head is open and there is a discharge. Thus every movement from bottom to top indicates a shot (material discharge). The movement of the control and cleaning piston and thus the initiation of a shot is detected by the reed switch 22. A corresponding signal is forwarded to the integrated circuit 14. The integrated circuit in the 14th integrated counter increases the number of shots by one with each shot and stores this value in the integrated memory.

Überdies ist im Speicher des integrierten Schaltkreises 14 eine 64 Bit lange Identifikationsnummer aufgenommen, die eine unverwechselbare Zuordnung des Zählers zur Seriennummer des Mischkopfs ermöglicht.Moreover, a 64-bit long identification number is included in the memory of the integrated circuit 14, which allows a unique assignment of the counter to the serial number of the mixing head.

Aufgrund der autarken Versorgung des integrierten Schaltkreises 14 über die Lithium-Batterie 30 ist ein Schusszähler mit einem nichtflüchtigen Speicher in die Mechanik des Mischkopfs integriert, der lediglich einen Lesezugriff ermöglicht.Due to the self-sufficient supply of the integrated circuit 14 via the lithium battery 30, a shot counter with a non-volatile memory is integrated in the mechanics of the mixing head, which only allows read access.

Natürlich kann über die Ansteckbuchse 16 auch ein Schusssignal an eine externe Steuerung weitergegeben und dort verarbeitet werden. Ausschlaggebend ist jedoch, dass jeder Zählimpuls auch im integrierten Schaltkreis 14 verarbeitet und dem Mischkopf unmittelbar zugeordnet wird. Kommt ein Mischkopf zur Reparatur, kann über eine Schnittstelle, beispielsweise eine serielle Schnittstelle, der Zählerstand ausgelesen und so der Gebrauchsumfang festgestellt werden.Of course, via the Ansteckbuchse 16 and a shot signal can be passed to an external control and processed there. The decisive factor, however, is that each counting pulse is also processed in the integrated circuit 14 and assigned directly to the mixing head. If a mixing head is to be repaired, the meter reading can be read out via an interface, for example a serial interface, thus determining the scope of use.

Überdies verfügt der Speicher vorliegend über einen eigenen Speicherbereich, in dem kurze Textfiles abgelegt werden können. In diesen Textfiles werden Informationen zum Lebenslauf des Mischkopfs eingebaut, nämlich die Daten einzelner Reparaturen und die dazugehörigen Zählerstände. Somit ist es möglich, die Historie eines Mischkopfs lückenlos zu dokumentieren.Moreover, the memory in this case has its own memory area in which short text files can be stored. Information about the curriculum vitae of the mixing head is incorporated in these text files, namely the data of individual repairs and the corresponding meter readings. Thus, it is possible to document the history of a mixing head completely.

Insgesamt ist es mit der vorliegenden Erfindung möglich, den Gebrauchsumfang eines Mischkopfes exakt festzustellen und Manipulationen auszuschließen, da dazu die Vergussmasse geöffnet müsste, wodurch eine eventuelle Garantie erlischt. Auch ist der unbefugte Austausch eines Zylinderdeckels nicht ohne weiteres möglich, da dann die Identifikationsnummer eines Zählers nicht mehr zur Seriennummer eines Mischkopfs passt.Overall, it is possible with the present invention to accurately determine the scope of use of a mixing head and to exclude tampering, as to the potting compound would have to open, whereby a possible warranty expires. Also, the unauthorized replacement of a cylinder cover is not readily possible, since then the identification number a counter no longer matches the serial number of a mixing head.

Claims (11)

  1. Mixing head with an integrated counter comprising
    - means (22, 24) for determining the operation of the mixing head,
    characterized by
    - an electric detecting- and storage arrangement (12, 14) which
    -- is connected with the means (22, 24) for determining the movement of the control- or cleaning piston or has such means (22, 24) and in that
    the electric detecting- and storage arrangement (12, 14) comprises a shot counter, in particular an incremental counter, and a non-volatile storage means (14).
  2. Mixing head according to Claim 1,
    characterized in that
    a control- or cleaning piston is provided in the mixing head and the means (22, 24) are constructed for determining the movement or actuation of the controlor cleaning piston.
  3. Mixing head according to Claim 1 or 2,
    characterized in that
    a sensor (22, 24) is provided as means in particular for determining the movement of the control- or cleaning piston.
  4. Mixing head according to Claim 3,
    characterized in that
    a switch, in particular a reed switch (22), is provided as sensor.
  5. Mixing head according to one of the preceding claims,
    characterized in that
    an interface (16) is provided for the production of a communication connection with the electric detecting-and storage arrangement (12, 14).
  6. Mixing head according to Claim 4,
    characterized in that
    the electric detecting- and storage arrangement (12, 14) is constructed such that only a read-out can be carried out externally from the storage means (14), but writing can not be carried out externally (read only counter).
  7. Mixing head according to one of the preceding claims,
    characterized in that
    a battery (18) is provided, which serves for the operation of the electric detecting- and storage arrangement (12, 14) and/or for buffering the storage means (14).
  8. Mixing head according to one of the preceding claims,
    characterized in that
    the electric detecting- and storage arrangement (12, 14) is integrated, preferably cast integrally, securely into the housing of the mixing head or securely into the housing of the control- or cleaning piston, in particular into a cylinder cover (10) of the control- or cleaning piston.
  9. Mixing head according to one of the preceding claims,
    characterized in that
    information clearly identifying the mixing head is stored in the storage means.
  10. Mixing head according to Claim 9,
    characterized in that
    the information identifying the mixing head is preferably stored in a non-deletable manner.
  11. Mixing head according to one of the preceding claims,
    characterized in that
    a second memory is provided or a second storage area in the storage means, in which additional information is able to be stored.
EP06113066A 2005-05-20 2006-04-25 Integrated shot counter for a mixing head. Not-in-force EP1724002B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06113066T PL1724002T3 (en) 2005-05-20 2006-04-25 Integrated shot counter for a mixing head.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005023232A DE102005023232A1 (en) 2005-05-20 2005-05-20 Integrated shot counter for mixing head

Publications (3)

Publication Number Publication Date
EP1724002A2 EP1724002A2 (en) 2006-11-22
EP1724002A3 EP1724002A3 (en) 2008-07-16
EP1724002B1 true EP1724002B1 (en) 2011-01-05

Family

ID=36889035

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EP06113066A Not-in-force EP1724002B1 (en) 2005-05-20 2006-04-25 Integrated shot counter for a mixing head.

Country Status (7)

Country Link
US (1) US20060262640A1 (en)
EP (1) EP1724002B1 (en)
CN (1) CN1864970A (en)
AT (1) ATE494059T1 (en)
DE (2) DE102005023232A1 (en)
ES (1) ES2358272T3 (en)
PL (1) PL1724002T3 (en)

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EP4249206A1 (en) 2022-03-17 2023-09-27 KraussMaffei Technologies GmbH Method for monitoring a machine part

Also Published As

Publication number Publication date
CN1864970A (en) 2006-11-22
EP1724002A2 (en) 2006-11-22
ES2358272T3 (en) 2011-05-09
DE102005023232A1 (en) 2006-11-23
DE502006008641D1 (en) 2011-02-17
PL1724002T3 (en) 2011-05-31
EP1724002A3 (en) 2008-07-16
US20060262640A1 (en) 2006-11-23
ATE494059T1 (en) 2011-01-15

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