DE10018321A1 - Economic product changeover on extruders using several granulate types uses a computer to determine when sufficient material is left to complete current production - Google Patents

Economic product changeover on extruders using several granulate types uses a computer to determine when sufficient material is left to complete current production

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Publication number
DE10018321A1
DE10018321A1 DE10018321A DE10018321A DE10018321A1 DE 10018321 A1 DE10018321 A1 DE 10018321A1 DE 10018321 A DE10018321 A DE 10018321A DE 10018321 A DE10018321 A DE 10018321A DE 10018321 A1 DE10018321 A1 DE 10018321A1
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production
components
computer
extruders
time
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DE10018321A
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German (de)
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Rolf Hessenbruch
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B29B7/603—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material in measured doses, e.g. proportioning of several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/748—Plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/9218—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92361—Extrusion unit
    • B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92676—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Robotics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Basic Packing Technique (AREA)

Abstract

Computers calculate the quantities of individual components and the time for emptying the granulate storage containers (3,3.1,3.2) from their material volumes and the time in use. Feeding of each component by the conveyers (7,7.1,7.2) is halted when the remaining amount of material in the individual storage vessels is sufficient to complete the remaining production.

Description

Die Erfindung betrifft ein Verfahren zur kostengünstigen Granulatumstellung bei Extrusionsanlegen mit mehreren Extrudern und mehreren Granulatsorten.The invention relates to a method for inexpensive granule conversion with extrusion lines with several extruders and several types of granulate.

Moderne Extrusionsanlagen - und hier besonders Coextrusionsanlagen - arbeiten mit verschiedenen Granulatsorten gleichzeitig. So werden bei Coextrusionsanlagen 3-8 Extruder in einer Anlage eingesetzt. Jeder dieser Extruder kann wiederum mit mehreren Granulatsorten eingespeist werden, so dass es nicht selten vorkommen kann, dass gleichzeitig bis zu 20 Materialien oder noch mehr gleichzeitig zum Einsatz kommen.Modern extrusion plants - and especially coextrusion plants - work with different types of granulate at the same time. In co-extrusion systems, 3-8 extruders are used in one system. Each of these extruders can in turn be fed with several types of granules, so that it can often happen that up to 20 materials or more are used at the same time.

Es ist leicht verständlich, dass bei einem Produktwechsel alle Materialien ausgestauscht werden müssen. Da diese Anlagen normalerweise im Automatikbetrieb laufen, werden auch die Granulate automatisch in Behälter gefüllt, aus denen sie wiederum automatisch in Wiegetrichter eingefüllt werden. Über diese Wiegetrichter werden die Mengen der einzelnen Granulatsorten geregelt.It is easy to understand that when changing products, all materials need to be replaced. Since these plants are usually in Automatic operation run, the granules are automatically in containers filled, from which they in turn are automatically filled into the weighing funnel become. About these weighing funnels are the quantities of each Regulated granules.

Steht nun ein Produktwechsel an, müssen alle neu zu füllenden Trichter zunächst entleert werden. Dies ist bei den vielen unterschiedlichen Granulatsorten eine aufwendige und teure Angelegenheit, da die Behälter normalerweise bis zum Produktwechsel gefüllt bleiben. Die dann notwendige Entleerung erfolgt entweder über Öffnungen an den Behältern, aus denen das Granulat in bereitgestellte Säcke lauft, die vom Bedienpersonal festgehalten werden müssen, oder durch Leerfahren. Beide Methoden sind teuer und zeitaufwendig, wobei das Entleeren in Säcke oft zu größeren Verlusten in die nähere Umgebung verbunden ist, was der Sauberkeit im Anlagenbereich abträglich ist.If a product change is now pending, all new funnels must be filled be emptied first. This is with the many different ones Granules are a complex and expensive affair because of the containers normally remain filled until the product is changed. The then necessary Emptying takes place either through openings in the containers from which the Granules run into provided bags by the operating personnel must be held, or by emptying. Both methods are expensive and time-consuming, emptying into sacks often becoming larger Losses in the immediate vicinity is linked to cleanliness in the home Plant area is detrimental.

Der Erfindung liegt danach die Aufgabe zugrunde, die hohen Kosten durch die beschriebenen Methoden des Granulatwechsels deutlich zu reduzieren und möglichst zu automatisieren.The invention is based on the object, the high cost of to significantly reduce the described methods of granule change and to automate as much as possible.

Da die Volumen der Einzelbehälter und die Granulatdurchsätze jedes Granulattypes errechnet werden können, können auch die Verweilzeiten jeder Granulatsorte in den entsprechenden Behältern berechnet werden. Bei der Produktion eines Auftrages ist das Ende der jeweiligen Produktionsdauer ebenfalls berechnet und steht fest. Somit ist es möglich, die Granulatförderung in die einzelnen Behälter so zu steuern, dass bei Produktionsende auch die jeweiligen Behälter nahezu leer sind und nach Erreichen des Produktionsendes mit dem Materialien für die neue Produktion gefüllt werden können. Dies reduziert die Umstellzeit sehr und macht den Materialwechsel schnell und kostengünstig. Das heißt, die Förderung der einzelnen Granulatmengen wird dann abgestellt, wenn die verbleibende Restmenge in den Behältern für die abschließenden Auftragsabwicklung ausreicht.Since the volume of the individual containers and the granulate throughputs each Granule types can be calculated, so can the dwell times of everyone Granulate types can be calculated in the appropriate containers. In the Production of an order is the end of the respective production period also calculated and is certain. It is therefore possible to To control granulate conveyance into the individual containers in such a way that End of production also the respective containers are almost empty and after  Reaching the end of production with the materials for the new production can be filled. This greatly reduces the changeover time and does that Material change quickly and inexpensively. That is, the promotion of individual amounts of granules are then switched off when the remaining Remaining quantity in the containers for the final order processing is sufficient.

Anhand der in der beigegebenen Zeichnung dargestellten Ausführungsbeispiele wird die Erfindung erläutert.Using the exemplary embodiments shown in the accompanying drawing the invention is explained.

Es zeigtIt shows

Fig. 1 schematisch die Beschickung eines Extruders mit insgesamt 3 Komponeneten. Fig. 1 shows schematically the loading of an extruder with a total of 3 components.

Fig. 2 eine Aufstellung über die Haupt- und Nebenkomponenten einer 7- Schichtanlage mit 7 Extrudern. Fig. 2 is a list of the main and secondary components of a 7-layer system with 7 extruders.

Fig. 1 zeigt schematisch die Anordnung einer Granulatbeschickung für einen Extruder 1, der mit insgesamt 3 Komponeneten gespeist wird. Die einzelnen Granulatsorten werden zunächst über Granulatförderer 7, 7.1 und 7.2 in die Vorratsbehälter 3, 3.1 und 3.2 gesaugt, bis diese gefüllt sind. In die darunter befindlichen Wiegetrichter 2, 2.1 und 2.2 mit den Wiegezellen 4, 4.1 und 4.2 wird das Granulat über die Verbindungsrohre 6, 6.1 und 6.2 gefüllt. Die Steuerung dieses Füllvorganges erfolgt über die Schieber 8, 8.1 und 8.2 solange, bis diese Schieber schließen. Diese schließen automatisch, wenn die Wiegetrichter ihre vorbestimmte Füllhöhe erreicht haben. Das Füllen der Vorratsbehälter und. der Wiegetrichter läuft vorzugsweise automatisch ab. Über die Motoren 5.1 und 5.2 werden die Nebenkomponenten über Dosierschnecken in das gemeinsame Zuführrohr gespeist. Fig. 1 shows schematically the arrangement of a granulate feed for an extruder 1 , which is fed with a total of 3 components. The individual types of granules are first sucked into the storage containers 3 , 3.1 and 3.2 via granulate conveyors 7 , 7.1 and 7.2 until they are filled. The granulate is filled into the weighing funnels 2 , 2.1 and 2.2 below with the weighing cells 4 , 4.1 and 4.2 via the connecting pipes 6 , 6.1 and 6.2 . This filling process is controlled via the slides 8 , 8.1 and 8.2 until these slides close. These automatically close when the weighing hoppers have reached their predetermined filling level. Filling the storage containers and. the weighing funnel preferably runs automatically. The secondary components are fed into the common feed pipe via metering screws via motors 5.1 and 5.2 .

Die dargestellte Extrusionseinheit ist nur ein Teil einer Coextrusionsanlage, bei der bis zu 8 oder mehr Extruder in einer Anlage zusammenarbeiten, d. h. die Anzahl der Einzelkomponenten in einer Anlage kann bis zu 30 Granulatsorten betragen.The extrusion unit shown is only part of one Coextrusion line, with up to 8 or more extruders in one line work together, d. H. the number of individual components in a system can be up to 30 types of granulate.

Fig. 2 zeigt die Zusammenstellung der Komponeneten einer Sieben­ schichtanlege entsprechend der Zuordnung der Einzelkomponenten zu den Extrudern. Im vorliegenden Fall werden gleichzeitig bis zu 27 Komponenten verarbeitet. Fig. 2 shows the composition of the components of a seven-layer application according to the assignment of the individual components to the extruders. In the present case, up to 27 components are processed at the same time.

Es ist leicht verständlich, dass bei einem Produktionswechsel mit Austausch der Komponeneten eine lange Zeit vergeht, bis alle oder eine Vielzahl der Komponeneten gewechselt werden können, zumal im Normalfall alle Behälter noch voll sind.It is easy to understand that when changing production with exchange a long time passes until all or a multitude of the  Components can be exchanged, especially since all containers normally are still full.

Ziel der Erfindung ist es, bei Produktionsende dafür zu sorgen, dass die Förderung der Komponenten mit geringen Durchsatzleistungen, die also lange benötigen, bis die vorhandene Granulatmenge verbraucht ist, vorzeitig abgeschaltet werden. Dazu ist es notwendig, dass vom Computer das Produktionsende errechnet wird. Anhand der Einzeldurchsätze, die ebenfalls vom Computer kontinuierlich berechnet werden, und dem Volumen der Vorrats- und Wiegetrichter mit den Verbindungselementen, die einmal ermittelt und eingegeben werden müssen, errechnet der Computer die Zeit, die notwendig ist, um das vorhandene Volumen zu leeren. Diese Zeit, minus eine geringe Sicherheitszeitspanne, werden von der Zeit des Produktionsendes abgezogen und zum berechneten Zeitpunkt die Förderung jeder Granulatsorte beendet.The aim of the invention is to ensure at the end of production that the Promotion of components with low throughputs, so long need until the existing amount of granules is used up, prematurely be switched off. For this it is necessary that the computer End of production is calculated. Using the individual throughputs, too continuously calculated by the computer, and the volume of the and weighing funnel with the fasteners that are determined once and must be entered, the computer calculates the time that is necessary is to empty the existing volume. That time, minus a slight one Safety periods are deducted from the end of production and the extraction of each type of granulate ends at the calculated time.

Da die Berechnung der Förderbeendigung für das Bedienpersonal nur sehr schwierig zu realisieren ist, erfolgt die Abschaltung der Förderung über den Computer automatisch. Nach Beendigung der Produktion können die Granulatförderer für die neuen Granulatsorten wieder eingeschalten werden. Auch dies kann automatisch erfolgen.Since the calculation of the termination of funding for the operating personnel only very much is difficult to implement, the funding is switched off via the computer automatically. After the end of production, the Granulate conveyors for the new granulate types can be switched on again. This can also be done automatically.

Das erfindungsgemäße Verfahren vereinfacht die Produktionsumstellung und erspart große Granulatmengen beim Umstellung, da die zeitaufwändige Entleerung von Hand sich erübrigt. Außerdem wird der Arbeitsplatz und das Umfeld der Extrusionsanlage sauber gehalten. Die Aufbewahrung von kleinen Restmengen entfällt ebenfalls.The method according to the invention simplifies the production changeover and saves large amounts of granules when changing over, because the time-consuming Manual emptying is unnecessary. In addition, the workplace and that Environment of the extrusion plant kept clean. The storage of small Remaining quantities are also omitted.

Claims (5)

1. Verfahren zur einfachen Produktionsumstellung bei Anlagen, bei denen eine Vielzahl von Granulatsorten eingesetzt und gewechselt wird, und die Regelung der Anlage mehr oder weniger von Computern ausgeführt wird, die auch die Berechnung der Mengen der Einzelkomponenten übernehmen, und gleichzeitig auch die Berechnung der Zeit für die Entleerung der Vorratsbehälter aus deren Volumen und dem zeitlichen Verbrauch durchführen, dadurch gekennzeichnet, dass aufgrund der Berechnung die Förderung jeder Komponente dann abgebrochen wird, wenn die Restmenge in den einzelnen Vorratsbehältern für die Durchführung der restlichen Produktionsmenge ausreicht.1. Procedure for simple production changeover in systems in which a large number of types of granules are used and changed, and the control of the system is carried out more or less by computers which also take over the calculation of the quantities of the individual components, and at the same time also the calculation of the time carry out for emptying the storage containers from their volume and the time consumed, characterized in that, based on the calculation, the conveyance of each component is stopped when the remaining quantity in the individual storage containers is sufficient to carry out the remaining production quantity. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abschaltung der Förderung automatisch erfolgt.2. The method according to claim 1, characterized, that funding is switched off automatically. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, dass von der berechneten Restzeit eine Sicherheitszeitspanne abgezogen wird.3. The method according to claim 1 and 2, characterized, that a safety period is deducted from the calculated remaining time becomes. 4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass nach Produktionsende die Förderung der abgeschalteten Komponenten wieder automatisch eingeschaltet wird.4. The method according to claim 1 to 3, characterized, that after the end of production, the promotion of the switched off components is switched on again automatically. 5. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass frühzeitig vor Produktionsende die neuen Komponenten in den Computer eingegeben werden können und daraufhin nur bei den Komponenten die Förderung beendet wird, die für die neue Produktion nicht benötigt werden.5. The method according to claim 1 to 3, characterized, that the new components are put into the computer at an early stage before production ends can be entered and then only for the components Funding is ended, which are not needed for the new production.
DE10018321A 2000-04-13 2000-04-13 Economic product changeover on extruders using several granulate types uses a computer to determine when sufficient material is left to complete current production Withdrawn DE10018321A1 (en)

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AT516295A1 (en) * 2014-09-10 2016-04-15 Next Generation Analytics Gmbh Apparatus and method for the manufacture and testing of workpieces
WO2016198221A1 (en) * 2015-06-08 2016-12-15 Windmöller & Hölscher Kg Method for preparing for a change of material in an extrusion device for a film machine
DE102016003765A1 (en) * 2016-04-01 2017-06-01 Reifenhäuser GmbH & Co Maschinenfabrik Plastic molding plant and method for operating such
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AT516295A1 (en) * 2014-09-10 2016-04-15 Next Generation Analytics Gmbh Apparatus and method for the manufacture and testing of workpieces
US10576676B2 (en) 2014-09-10 2020-03-03 Next Generation Analytics Gmbh Apparatus and method for manufacturing and testing workpieces
WO2016055043A1 (en) * 2014-10-07 2016-04-14 X-Per Extruder Performance Gmbh Method for producing plastic products by means of an extruder, and shaping system
US11648720B2 (en) 2014-10-07 2023-05-16 X-Per Extruder Performance Gmbh Method for producing plastic products by means of an extruder, and shaping system
WO2016198221A1 (en) * 2015-06-08 2016-12-15 Windmöller & Hölscher Kg Method for preparing for a change of material in an extrusion device for a film machine
US11267181B2 (en) 2015-06-08 2022-03-08 Windmöller & Hölscher Kg Method for preparing for a change of material in an extrusion device for a film machine
DE102016003765A1 (en) * 2016-04-01 2017-06-01 Reifenhäuser GmbH & Co Maschinenfabrik Plastic molding plant and method for operating such
WO2017167322A3 (en) * 2016-04-01 2017-12-21 Reifenhäuser GmbH & Co. KG Maschinenfabrik Granulate supply for a plastic material shaping system, and method for the operation thereof
IT202200001709A1 (en) * 2022-02-01 2023-08-01 Pegaso Ind S P A Apparatus and process for the production of polymer-based articles
EP4219111A1 (en) * 2022-02-01 2023-08-02 Pegaso Industries S.p.A. Production apparatus and process for polymer-based articles

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