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EP2379411B1 - Device for filling and compacting pourable products - Google Patents

Device for filling and compacting pourable products Download PDF

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Publication number
EP2379411B1
EP2379411B1 EP09748106.3A EP09748106A EP2379411B1 EP 2379411 B1 EP2379411 B1 EP 2379411B1 EP 09748106 A EP09748106 A EP 09748106A EP 2379411 B1 EP2379411 B1 EP 2379411B1
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EP
European Patent Office
Prior art keywords
plunger
applying
force
predetermined force
product
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
EP09748106.3A
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German (de)
French (fr)
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EP2379411A1 (en
Inventor
Martin Beck
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP2379411A1 publication Critical patent/EP2379411A1/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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/24—Reducing volume of filled material by mechanical compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/007—Guides or funnels for introducing articles into containers or wrappers

Definitions

  • the invention relates to a device for filling and compressing free-flowing products according to the preamble of the independent claim.
  • a device for filling a fine-grained good is known.
  • a metering device, a guide device for feeding the goods from the metering device into a package, a suction device for sucking whirled, feinkörnigem Good with a suction provided, wherein the guide means is passed through the suction and arranged the guide means and the suction over the packaging are.
  • the invention has for its object to further improve the filling process. This object is solved by the features of the independent claim.
  • the inventive device for filling and compacting free-flowing products has the advantage that the filling process is further improved by a force-controlled filling and pressing free-flowing products is provided.
  • a force-controlled pressing is particularly advantageous to obtain a certain flavor.
  • the device is characterized by a particularly space-saving arrangement, since filling and pressing can be done in only one workstation.
  • a linear drive and / or a pneumatic cylinder are provided as means for applying a force to the punch.
  • the former is characterized by easy controllability.
  • the pneumatic cylinder can be superimposed on a force application by the linear drive.
  • small linear drives can be used, which then take over the force-controlled or force-controlled admission of the stamp.
  • a minimal contact pressure is preferably applied to the stamp.
  • the linear drive acts with a lever mechanism on the punch.
  • This arrangement is characterized on the one hand by a particularly small space requirement.
  • a corresponding lever transmission allows the use of relatively small linear motors for force control or force control of the contact pressure of the punch.
  • detection means are provided for detecting the force acting on the punch.
  • load cells are suitable for this purpose due to their robust design.
  • the measurement data of the detection means can be used for setpoint control of the linear motor. As a result, the achievement of the preselected pressing force is ensured in a particularly simple manner.
  • the detection means is arranged directly above the stamp.
  • loss of friction in the guides arranged above the detection means as well as lever mechanisms play no role.
  • the quality of the force control / force control is further improved.
  • stripping means are provided which prevent adhesion of the product to be compacted on the underside of the punch.
  • Mechanisms that force a rotary movement of the stamp about the longitudinal axis, or also ultrasound devices that can set the stamp in vibration are suitable for this purpose. Thereby the adhesion of the product to be filled is avoided, whereby a consistently high quality of the force-controlled compression or compression of the product sets.
  • At least two punches are arranged displaceably together with the means for applying a force, relative to a filling block, via which the product to be filled is fed to the container to be filled.
  • several punches are also moved with only one movement mechanism for compressing the filled product, while on the other hand it can be ensured that each ram can be moved individually in a force-controlled or force-controlled manner. This further contributes to minimizing the space of the overall arrangement at a consistently high filling quality due to the separately force-controllable or force adjustable punch.
  • two containers 12 are filled with a free-flowing product via a filling block 10.
  • the free-flowing product passes through a product feed 16, which is arranged inclined with respect to a longitudinal axis of a punch 14, in the container 12.
  • an opening of an ejector 44 is arranged which is preferably designed as a ring suction to minimize any product losses.
  • a stamp unit 28 is arranged movable relative to the filling block 10, which is to symbolize the lateral double arrow.
  • the movable punch unit 28 on a plurality of guide bushes 52, which ensure a displacement of the punch unit 28 against fixed guide rods 50.
  • the stamp unit 28 has at its lower end shown by way of example two punches 14, which are connected via corresponding sleeves 43, each with a pressure detecting means 42.
  • Stamp 14, sleeve 43 and load cell 42 are rotatably mounted on a bearing 41 and can be rotated by a arranged in the storage area rotating device 40 to the punch center axis.
  • An output signal of the pressure detection 42 is supplied to a drive device 26, which in turn generates a drive signal for a linear motor 30.
  • the linear motor 30 is a component of the stamp unit 28 which is integral to the construction. A movement of the linear motor 30 acts on a lever arm 31 which is rotatably supported via a bearing point 34 of a bearing block 33.
  • the movement of the push rod 36 and thus of the punch 14 is limited by a stop 35.
  • a guide 38 transmits the movement of the push rod 36 on the punch 14th
  • the mobility of the punch unit 28 relative to the filling block 10 is achieved by connecting guide rods 50 to a machine frame 54 parallel to the direction of travel of the punches 14. On the machine frame 54 and the filling block 10 is located.
  • the guide rods 50 may be connected together above a frame on which a motor 56 rests. This actuates a spindle 58, via which the stamp unit 28 with associated punches 14 along the guide rods 50, mounted in the guide bushes 52, can be moved.
  • containers 12 is the thermoforming of plastic films. In order to generate as little waste as possible, one tries on these systems, the containers 12 as close as possible to arrange next to each other.
  • the device for filling and compressing free-flowing products can be used, for example, on a thermoforming machine to achieve a force-controlled or force-controlled pressing of the product in a confined space after filling the container 12 in a station or a single operation.
  • the container 12 is raised to the mouth of the filling block 10.
  • the product supply 16 which is designed as a bore, the product is metered into the container 12.
  • the dosage can exceed the container volume, since the container 12 rests close to the mouth of the filling block 10.
  • the punch 14 is moved down to compress the product contained in the container 12.
  • the punch 14 is rotated by means of the rotating means 40 in order to avoid adhesion of the product to the punch 14.
  • the rotator 40 is designed as a rack-pinion drive. Other techniques could be used for this, such as vibrating the punch 14. This could be done by means of ultrasound.
  • the entire punch unit 28 is moved relative to the fixed filling block 10.
  • the stamp unit 28 is moved by the motor 56 via the spindle 58 along the guide rods 50 down or up.
  • the stamp unit 28 is supported by guide bushes 52 opposite the guide rods 50.
  • the guide rods 52 may be part of the machine frame 54.
  • the punch 14 is guided axially secured torque. This task is performed by the guide 38, which is preferably designed as a torque sleeve. This ensures that the rotation of the punch 14 is not continued beyond the guide 38 upwards.
  • the actual pressing force is introduced via the lever 31, which has its pivot point 34 in the bearing block 33.
  • a linear motor 30 and a pneumatic cylinder 32 press on the lever 31, which exerts a force on a push rod 36 and the guide 38 via a roller.
  • the stop 35 prevents further movement.
  • the linear motor 30 controls the set force and thus ensures the selected pressing force.
  • the lever arm 31 is used.
  • the pneumatic cylinder 32 also supports the application of a force. By a corresponding pressure preselection and corresponding leverage and relatively small linear motors 30 can be used. Other types of drives than linear motors 30 are suitable for this purpose. You only need to move the lever arm 31 so that the desired pressing force is adjusted to the punch 14.
  • Measured data of the pressure detection 42 can be used to control the setpoint value of the linear motor 30. This ensures the achievement of the preselected pressing force.
  • pressure detection is preferably a pressure force sensor 42, which is designed for example as a pressure cell. Due to the direct arrangement over the punch 14, loss of friction in the guides 38 and in corresponding power transmission mechanisms 31, 33, 34, 36 are irrelevant. The measurement results are thus not distorted.
  • the stamp unit 28 comprises at least two punches 14.
  • the at least two punches 14 can be moved by only one movement device 56, 58.
  • each of the stamp 14 is assigned a separate drive means 30 for pressing force control or pressing force control.
  • the respective lever arms 31 for the respective stamps 14 are arranged one behind the other and interlocking.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung geht aus von einer Vorrichtung zum Abfüllen und Verdichten rieselfähiger Produkte nach der Gattung des unabhängigen Anspruchs. Aus der DE 10 2006 010 092 A1 ist bereits eine Vorrichtung zum Abfüllen eines feinkörnigen Gutes bekannt. Hierbei sind eine Dosiereinrichtung, eine Führungseinrichtung zum Zuführen des Gutes von der Dosiereinrichtung in eine Verpackung, eine Absaugvorrichtung zum Absaugen von aufgewirbeltem, feinkörnigem Gut mit einem Absauggehäuse vorgesehen, wobei die Führungseinrichtung durch das Absauggehäuse hindurchgeführt ist und die Führungseinrichtung sowie das Absauggehäuse über der Verpackung angeordnet sind.The invention relates to a device for filling and compressing free-flowing products according to the preamble of the independent claim. From the DE 10 2006 010 092 A1 already a device for filling a fine-grained good is known. In this case, a metering device, a guide device for feeding the goods from the metering device into a package, a suction device for sucking whirled, feinkörnigem Good with a suction provided, wherein the guide means is passed through the suction and arranged the guide means and the suction over the packaging are.

Aus der US 2008/145466 A1 ist eine Steuerung für eine hydraulische Pulverpresse bekannt. Hierbei sind Steuermittel vorgesehen, welche die Größe der Presskraft der Stempel einstellen. Aus diesem Stand der Technik sind somit die Merkmale des Oberbegriffs des Anspruchs 1 des Anmeldungsgegenstands bekannt.From the US 2008/145466 A1 is a controller for a hydraulic powder press known. In this case, control means are provided which adjust the size of the pressing force of the punches. From this prior art, the features of the preamble of claim 1 of the subject of the application are thus known.

Der Erfindung liegt die Aufgabe zugrunde, den Abfüllvorgang weiter zu verbessern. Diese Aufgabe wird gelöst durch die Merkmale des unabhängigen Anspruchs.The invention has for its object to further improve the filling process. This object is solved by the features of the independent claim.

Offenbarung der ErfindungDisclosure of the invention

Die erfindungsgemäße Vorrichtung zum Abfüllen und Verdichten rieselfähiger Produkte hat demgegenüber den Vorteil, dass der Abfüllvorgang weiter verbessert wird, indem ein kraftgeregeltes Füllen und Verpressen rieselfähiger Produkte vorgesehen ist. Insbesondere bei bestimmten Produkten, wie beispielsweise Kaffeepulver, ist eine kraftgesteuerte Verpressung besonders vorteilhaft, um eine bestimmte Geschmacksnote zu erhalten. Weiterhin zeichnet sich die Vorrichtung durch eine besonders platzsparende Anordnung aus, da Abfüllung und Verpressung in nur einer Arbeitsstation erfolgen können.The inventive device for filling and compacting free-flowing products has the advantage that the filling process is further improved by a force-controlled filling and pressing free-flowing products is provided. In particular, in certain products, such as coffee powder, a force-controlled pressing is particularly advantageous to obtain a certain flavor. Furthermore, the device is characterized by a particularly space-saving arrangement, since filling and pressing can be done in only one workstation.

In einer zweckmäßigen Weiterbildung ist vorgesehen, dass als Mittel zum Aufbringen einer Kraft auf den Stempel ein Linearantrieb und/oder ein Pneumatikzylinder vorgesehen sind. Ersterer zeichnet sich durch einfache Regelbarkeit aus. Weiterhin kann zur Aufbringung einer Presskraft der Pneumatikzylinder einer Kraftaufbringung durch den Linearantrieb überlagert sein. Dadurch können insbesondere kleine Linearantriebe verwendet werden, die dann die kraftgesteuerte bzw. kraftgeregelte Beaufschlagung der Stempel übernehmen. Über den Pneumatikzylinder wird vorzugsweise eine minimale Anpresskraft auf den Stempel aufgebracht.In an expedient development it is provided that a linear drive and / or a pneumatic cylinder are provided as means for applying a force to the punch. The former is characterized by easy controllability. Furthermore, for application of a pressing force, the pneumatic cylinder can be superimposed on a force application by the linear drive. As a result, in particular small linear drives can be used, which then take over the force-controlled or force-controlled admission of the stamp. About the pneumatic cylinder, a minimal contact pressure is preferably applied to the stamp.

In einer zweckmäßigen Weiterbildung ist vorgesehen, dass der Linearantrieb mit einem Hebelmechanismus auf den Stempel einwirkt. Diese Anordnung zeichnet sich zum einen durch einen besonders geringen Bauraumbedarf aus. Weiterhin erlaubt eine entsprechende Hebelübersetzung die Verwendung relativ kleiner Linearmotoren zur Kraftsteuerung bzw. Kraftregelung der Anpresskraft des Stempels.In an expedient development it is provided that the linear drive acts with a lever mechanism on the punch. This arrangement is characterized on the one hand by a particularly small space requirement. Furthermore, a corresponding lever transmission allows the use of relatively small linear motors for force control or force control of the contact pressure of the punch.

In einer zweckmäßigen Weiterbildung sind Erfassungsmittel zum Erfassen der auf den Stempel wirkenden Kraft vorgesehen. Hierzu eignen sich insbesondere Kraftmessdosen aufgrund ihrer robusten Bauweise. Die Messdaten der Erfassungsmittel können zur Sollwertsteuerung des Linearmotors verwendet werden. Dadurch wird das Erreichen der vorgewählten Presskraft in besonders einfacher Art und Weise sichergestellt.In an expedient development, detection means are provided for detecting the force acting on the punch. In particular, load cells are suitable for this purpose due to their robust design. The measurement data of the detection means can be used for setpoint control of the linear motor. As a result, the achievement of the preselected pressing force is ensured in a particularly simple manner.

In einer zweckmäßigen Weiterbildung ist das Erfassungsmittel direkt über dem Stempel angeordnet. Dadurch spielen Verlustreibungen in den oberhalb der Erfassungsmittel angeordneten Führungen sowie Hebelmechanismen keine Rolle. Dadurch wird die Güte der Kraftsteuerung/Kraftregelung weiter verbessert.In an expedient development, the detection means is arranged directly above the stamp. As a result, loss of friction in the guides arranged above the detection means as well as lever mechanisms play no role. As a result, the quality of the force control / force control is further improved.

In einer zweckmäßigen Weiterbildung ist vorgesehen, dass Abstreifmittel vorgesehen sind, die ein Anhaften des zu verdichtenden Produkts an der Unterseite des Stempels verhindern. Hierzu eignen sich insbesondere Mechanismen, die eine Drehbewegung des Stempels um die Längsachse erzwingen, oder auch Ultraschalleinrichtungen, die den Stempel in Schwingungen versetzen können. Dadurch wird das Anhaften des abzufüllenden Produkts vermieden, wodurch sich eine gleichbleibend hohe Qualität der kraftgesteuerten Verpressung bzw. Verdichtung des Produkts einstellt.In an expedient development, it is provided that stripping means are provided which prevent adhesion of the product to be compacted on the underside of the punch. Mechanisms that force a rotary movement of the stamp about the longitudinal axis, or also ultrasound devices that can set the stamp in vibration are suitable for this purpose. Thereby the adhesion of the product to be filled is avoided, whereby a consistently high quality of the force-controlled compression or compression of the product sets.

Erfindungsgemäß ist vorgesehen, dass zumindest zwei Stempel zusammen mit den Mitteln zur Aufbringung einer Kraft verschiebbar angeordnet sind, relativ zu einem Abfüllblock, über den dem abzufüllenden Behältnis das abzufüllende Produkt zugeführt wird. Dadurch kann besonders bevorzugt erreicht werden, dass auch mehrere Stempel mit nur einem Bewegungsmechanismus zum Verdichten des abgefüllten Produkts bewegt werden, während auf der anderen Seite sichergestellt werden kann, dass jeder Stempel einzeln kraftgeregelt bzw. kraftgesteuert verfahren werden kann. Dies trägt weiterhin zur Bauraumminimierung der Gesamtanordnung bei bei gleichbleibend hoher Abfüllqualität aufgrund der separat kraftsteuerbaren bzw. kraftregelbaren Stempel.According to the invention it is provided that at least two punches are arranged displaceably together with the means for applying a force, relative to a filling block, via which the product to be filled is fed to the container to be filled. As a result, it can be achieved with particular preference that several punches are also moved with only one movement mechanism for compressing the filled product, while on the other hand it can be ensured that each ram can be moved individually in a force-controlled or force-controlled manner. This further contributes to minimizing the space of the overall arrangement at a consistently high filling quality due to the separately force-controllable or force adjustable punch.

Weitere zweckmäßige Weiterbildungen ergeben sich aus weiteren abhängigen Ansprüchen und aus der Beschreibung.Further expedient developments emerge from further dependent claims and from the description.

Zeichnungdrawing

Ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zum Abfüllen und Verdichten rieselfähiger Produkte ist in der Zeichnung dargestellt und wird nachfolgend näher beschrieben.An embodiment of the device according to the invention for filling and compressing free-flowing products is shown in the drawing and will be described in more detail below.

Es zeigen:

  • die Figur 1 eine teilweise längs geschnittene Ansicht der Vorrichtung sowie
  • die Figur 2 eine schematische Ansicht einer verfahrbaren Stempeleinheit.
Show it:
  • the FIG. 1 a partially longitudinal sectional view of the device as well
  • the FIG. 2 a schematic view of a movable punch unit.

Über einen Abfüllblock 10 werden hier exemplarisch zwei Behältnisse 12 mit einem rieselfähigem Produkt befüllt. Das rieselfähige Produkt gelangt über eine Produktzuführung 16, die gegenüber einer Längsachse eines Stempels 14 geneigt angeordnet ist, in das Behältnis 12. Zwischen der Mündung der Produktzuführung 16 und des Behältnisses 12 ist eine Öffnung eines Ejektors 44 angeordnet, welcher vorzugsweise als Ringabsaugung ausgebildet ist, um eventuelle Produktverluste zu minimieren. Eine Stempeleinheit 28 ist relativ zu dem Abfüllblock 10 beweglich angeordnet, was der seitliche Doppelpfeil symbolisieren soll. Hierzu weist die verfahrbare Stempeleinheit 28 mehrere Führungsbuchsen 52 auf, die eine Verschiebbarkeit der Stempeleinheit 28 gegenüber feststehenden Führungsstangen 50 gewährleisten. Die Stempeleinheit 28 weist an ihrem unteren Ende exemplarisch dargestellt zwei Stempel 14 auf, welche über entsprechende Hülsen 43 mit jeweils einem Druckerfassungsmittel 42 verbunden sind. Stempel 14, Hülse 43 und Kraftmessdose 42 sind über eine Lagerung 41 drehbar gelagert und können durch eine im Lagerbereich angeordnete Dreheinrichtung 40 um die Stempelmittelachse gedreht werden. Ein Ausgangssignal der Druckerfassung 42 ist einer Ansteuereinrichtung 26 zugeführt, welche wiederum ein Ansteuersignal generiert für einen Linearmotor 30. Der Linearmotor 30 ist baueinheitlicher Bestandteil der Stempeleinheit 28 ist. Eine Bewegung des Linearmotors 30 wirkt auf einen Hebelarm 31, der über einen Lagerpunkt 34 eines Lagerblocks 33 drehbar gelagert ist. Eine entsprechende Bewegung des Linearantriebs 30, gegebenenfalls verstärkt durch einen ebenfalls auf den Hebelarm 31 einwirkenden Pneumatikzylinder 32, verschiebt eine Druckstange 36 ein, die koaxial zum Stempel 14 angeordnet ist. Die Bewegung der Druckstange 36 und damit des Stempels 14 wird durch einen Anschlag 35 begrenzt. Eine Führung 38 überträgt die Bewegung der Druckstange 36 auf den Stempel 14.By way of example, two containers 12 are filled with a free-flowing product via a filling block 10. The free-flowing product passes through a product feed 16, which is arranged inclined with respect to a longitudinal axis of a punch 14, in the container 12. Between the mouth of the product feeder 16 and the container 12, an opening of an ejector 44 is arranged which is preferably designed as a ring suction to minimize any product losses. A stamp unit 28 is arranged movable relative to the filling block 10, which is to symbolize the lateral double arrow. For this purpose, the movable punch unit 28 on a plurality of guide bushes 52, which ensure a displacement of the punch unit 28 against fixed guide rods 50. The stamp unit 28 has at its lower end shown by way of example two punches 14, which are connected via corresponding sleeves 43, each with a pressure detecting means 42. Stamp 14, sleeve 43 and load cell 42 are rotatably mounted on a bearing 41 and can be rotated by a arranged in the storage area rotating device 40 to the punch center axis. An output signal of the pressure detection 42 is supplied to a drive device 26, which in turn generates a drive signal for a linear motor 30. The linear motor 30 is a component of the stamp unit 28 which is integral to the construction. A movement of the linear motor 30 acts on a lever arm 31 which is rotatably supported via a bearing point 34 of a bearing block 33. A corresponding movement of the linear drive 30, optionally reinforced by a likewise acting on the lever arm 31 pneumatic cylinder 32, displaces a push rod 36, which is arranged coaxially to the punch 14. The movement of the push rod 36 and thus of the punch 14 is limited by a stop 35. A guide 38 transmits the movement of the push rod 36 on the punch 14th

Die Verfahrbarkeit der Stempeleinheit 28 gegenüber dem Abfüllblock 10 wird erreicht, indem parallel zur Verfahrrichtung der Stempel 14 Führungsstangen 50 mit einem Maschinengestell 54 verbunden sind. Auf dem Maschinengestell 54 liegt auch der Abfüllblock 10 auf. Die Führungsstangen 50 können oben über ein Gestell miteinander verbunden sein, auf dem ein Motor 56 aufliegt. Dieser betätigt eine Spindel 58, über die die Stempeleinheit 28 mit zugehörigen Stempeln 14 entlang der Führungsstangen 50, gelagert in den Führungsbuchsen 52, verschoben werden kann.The mobility of the punch unit 28 relative to the filling block 10 is achieved by connecting guide rods 50 to a machine frame 54 parallel to the direction of travel of the punches 14. On the machine frame 54 and the filling block 10 is located. The guide rods 50 may be connected together above a frame on which a motor 56 rests. This actuates a spindle 58, via which the stamp unit 28 with associated punches 14 along the guide rods 50, mounted in the guide bushes 52, can be moved.

Hochwertige Produkte verlangen eine kraftgesteuerte Verpressung, um beispielsweise bei Kaffeepulver eine bestimmte Geschmacksnote zu erhalten. Um bei entsprechenden Abfüllanlagen eine möglichst hohe Ausbringung zu erreichen, ist es nötig, auf engem Raum zu bauen. Eine kostengünstige Art, Behältnisse 12 herzustellen, ist das Thermoformen von Kunststofffolien. Auch um möglichst wenig Abfall zu erzeugen, versucht man auf diesen Anlagen, die Behältnisse 12 möglichst dicht nebeneinander anzuordnen. Die Vorrichtung zum Abfüllen und Verdichten rieselfähiger Produkte kann beispielsweise auf einer Thermoformmaschine eingesetzt werden, um auf engstem Raum eine kraftgesteuerte bzw. kraftgeregelte Verpressung des Produkts nach dem Füllen des Behältnisses 12 in einer Station bzw. einem Arbeitsgang zu erreichen.High-quality products require a force-controlled pressing, for example, to obtain a certain flavor in coffee powder. In order to achieve the highest possible output for corresponding filling systems, it is necessary to build in a small space. A low cost type, containers 12 is the thermoforming of plastic films. In order to generate as little waste as possible, one tries on these systems, the containers 12 as close as possible to arrange next to each other. The device for filling and compressing free-flowing products can be used, for example, on a thermoforming machine to achieve a force-controlled or force-controlled pressing of the product in a confined space after filling the container 12 in a station or a single operation.

Hierzu wird das Behältnis 12 an die Mündung des Abfüllblockes 10 angehoben. Durch die Produktzuführung 16, die als Bohrung ausgeführt ist, wird das Produkt in das Behältnis 12 dosiert. Die Dosiermenge kann dabei das Behältervolumen übersteigen, da das Behältnis 12 dicht an der Mündung des Abfüllblockes 10 anliegt. Nach erfolgter Dosierung wird der Stempel 14 nach unten bewegt, um das im Behältnis 12 befindliche Produkt zu komprimieren.For this purpose, the container 12 is raised to the mouth of the filling block 10. By the product supply 16, which is designed as a bore, the product is metered into the container 12. The dosage can exceed the container volume, since the container 12 rests close to the mouth of the filling block 10. After dosing the punch 14 is moved down to compress the product contained in the container 12.

Während oder nach dem Pressvorgang wird der Stempel 14 mittels der Dreheinrichtung 40 gedreht, um ein Anhaften des Produkts am Stempel 14 zu vermeiden. Vorzugsweise ist die Dreheinrichtung 40 als Zahnstange-Ritzelantrieb ausgeführt. Es könnten hiefür auch andere Techniken verwendet werden, beispielsweise das Versetzen des Stempels 14 in Schwingungen. Dies könnte mittels Ultraschall erfolgen.During or after the pressing operation, the punch 14 is rotated by means of the rotating means 40 in order to avoid adhesion of the product to the punch 14. Preferably, the rotator 40 is designed as a rack-pinion drive. Other techniques could be used for this, such as vibrating the punch 14. This could be done by means of ultrasound.

Um den Stempel 14 relativ zu dem Behältnis 12 zur Verpressung zu bewegen, wird die ganze Stempeleinheit 28 gegenüber dem feststehenden Abfüllblock 10 verfahren. Hierzu wird die Stempeleinheit 28 durch den Motor 56 über die Spindel 58 entlang der Führungsstangen 50 nach unten bzw. oben verfahren. Die Stempeleinheit 28 ist durch Führungsbuchsen 52 gegenüber den Führungsstangen 50 gelagert. Die Führungsstangen 52 können Bestandteil des Maschinengestells 54 sein.In order to move the punch 14 relative to the container 12 for pressing, the entire punch unit 28 is moved relative to the fixed filling block 10. For this purpose, the stamp unit 28 is moved by the motor 56 via the spindle 58 along the guide rods 50 down or up. The stamp unit 28 is supported by guide bushes 52 opposite the guide rods 50. The guide rods 52 may be part of the machine frame 54.

In der Stempeleinheit 28 selbst ist der Stempel 14 axial drehmomentgesichert geführt. Diese Aufgabe übernimmt die Führung 38, welche vorzugsweise als Drehmomentbüchse ausgeführt ist. Dadurch wird sichergestellt, dass die Drehung des Stempels 14 nicht weiter über die Führung 38 hinaus nach oben weitergeführt wird.In the stamp unit 28 itself, the punch 14 is guided axially secured torque. This task is performed by the guide 38, which is preferably designed as a torque sleeve. This ensures that the rotation of the punch 14 is not continued beyond the guide 38 upwards.

Die eigentliche Presskraft wird über den Hebel 31 eingeleitet, der im Lagerblock 33 seinen Drehpunkt 34 besitzt. Hierzu drücken ein Linearmotor 30 und ein Pneumatikzylinder 32 auf den Hebel 31, der über eine Rolle auf eine Druckstange 36 und die Führung 38 eine Kraft ausübt. Der Anschlag 35 verhindert eine weitergehende Bewegung. Wenn nun der Stempel 14 auf das Produkt trifft, dies verpresst und die im Linearmotor 30 vorgewählte Kraft übersteigt, federt quasi der Stempel 14 in seiner Führung ein. Dabei regelt der Linearmotor 30 auf die eingestellte Kraft und stellt somit die gewählte Presskraft sicher. Um eine verhältnismäßig hohe Presskraft zu erzeugen, wird zum einen der Hebelarm 31 verwendet. Weiterhin unterstützt auch der Pneumatikzylinder 32 die Aufbringung einer Kraft. Durch eine entsprechende Druckvorwahl und entsprechende Hebelübersetzung können auch relativ kleine Linearmotoren 30 zur Verwendung kommen. Auch andere Antriebsarten als Linearmotoren 30 eignen sich hierfür. Sie müssen lediglich den Hebelarm 31 so verschieben, dass sich die gewünschte Presskraft auf den Stempel 14 einstellt.The actual pressing force is introduced via the lever 31, which has its pivot point 34 in the bearing block 33. For this purpose, a linear motor 30 and a pneumatic cylinder 32 press on the lever 31, which exerts a force on a push rod 36 and the guide 38 via a roller. The stop 35 prevents further movement. Now, if the punch 14 hits the product, this compresses and exceeds the preselected in the linear motor 30 force springs quasi the punch 14 in his leadership. In this case, the linear motor 30 controls the set force and thus ensures the selected pressing force. In order to produce a relatively high pressing force, on the one hand the lever arm 31 is used. Furthermore, the pneumatic cylinder 32 also supports the application of a force. By a corresponding pressure preselection and corresponding leverage and relatively small linear motors 30 can be used. Other types of drives than linear motors 30 are suitable for this purpose. You only need to move the lever arm 31 so that the desired pressing force is adjusted to the punch 14.

Zur Überwachung der Presskraft dient die Druckerfassung 42. Diese erfasst die auf den Stempel 14 aufgebrachte Presskraft und gibt ein entsprechendes Ausgangssignal an die Ansteuereinrichtung 26. Messdaten der Druckerfassung 42 können zur Sollwertsteuerung des Linearmotors 30 dienen. Dadurch wird das Erreichen der vorgewählten Presskraft sichergestellt. Als Druckerfassung dient vorzugsweise ein Druckkraftsensor 42, der beispielsweise als Druckmessdose ausgeführt ist. Durch die direkte Anordnung über dem Stempel 14 spielen Verlustreibungen in den Führungen 38 und in entsprechenden Kraftübertragungsmechanismen 31, 33, 34, 36 keine Rolle. Die Messergebnisse werden somit nicht verfälscht.This records the pressing force applied to the punch 14 and outputs a corresponding output signal to the control device 26. Measured data of the pressure detection 42 can be used to control the setpoint value of the linear motor 30. This ensures the achievement of the preselected pressing force. As pressure detection is preferably a pressure force sensor 42, which is designed for example as a pressure cell. Due to the direct arrangement over the punch 14, loss of friction in the guides 38 and in corresponding power transmission mechanisms 31, 33, 34, 36 are irrelevant. The measurement results are thus not distorted.

Eventuelle Produktverluste durch Spalten zwischen Behältnis 12 und Mündung der Produktzuführung 16 werden durch eine Ringabsaugung des Ejektors 44 abgesaugt.Any product losses due to gaps between the container 12 and the mouth of the product feed 16 are sucked off by an annular suction of the ejector 44.

Besonders bevorzugt umfasst die Stempeleinheit 28 zumindest zwei Stempel 14. Zum Verpressen können die zumindest zwei Stempel 14 durch lediglich eine Bewegungseinrichtung 56, 58 verfahren werden. Auf der anderen Seite ist sichergestellt, dass jedem der Stempel 14 eine separate Antriebseinrichtung 30 zur Presskraftsteuerung bzw. Presskraftregelung zugeordnet ist. Damit ist eine individuelle Presskraftanpassung für jeden Stempel 14 möglich. Um darüber hinaus eine besonders platzsparende Ausführung der Stempeleinheit 28 zu erhalten, sind die jeweiligen Hebelarme 31 für die jeweiligen Stempel 14 hintereinander und ineinander greifend angeordnet.Particularly preferably, the stamp unit 28 comprises at least two punches 14. For pressing, the at least two punches 14 can be moved by only one movement device 56, 58. On the other hand, it is ensured that each of the stamp 14 is assigned a separate drive means 30 for pressing force control or pressing force control. For an individual Presskraftanpassung for each stamp 14 is possible. Moreover, in order to obtain a particularly space-saving embodiment of the stamp unit 28, the respective lever arms 31 for the respective stamps 14 are arranged one behind the other and interlocking.

Claims (11)

  1. Device for filling and compacting pourable products, said device comprising:
    - at least one product feed (16) for supplying a pourable product to receptacle is (12) to be filled,
    - at least two plunger is (14), which compact the product supplied to a respective receptacle (12),
    - means (30, 32) for applying a predetermined force to the plunger is (14), characterized in that a displacement mechanism (56, 58) is provided that displaces the at least two plungers (14) and the means (30, 32) for applying a predetermined force to the plungers (14) together for compacting, the at least two plungers (14) being respectively controlled or regulated separately from each other.
  2. Device according to Claim 1, characterized in that detecting means (42) are provided for detecting the force acting on the plunger (14).
  3. Device according to one of the preceding claims, characterized in that at least one drive device (26) is provided for driving the means (30, 32) for applying a predetermined force.
  4. Device according to Claim 3, characterized in that the drive device (26) generates a drive signal for at least one means (30) for applying a predetermined force, in dependence on an output signal of the detecting means (42).
  5. Device according to one of Claims 3 and 4, characterized in that the drive device (26), in dependence on the output signal of the detecting means (42), adapts a required value for the driving of the means (30) for applying a predetermined force.
  6. Device according to one of the preceding claims, characterized in that at least one linear drive (30) and/or a pneumatic cylinder (32) are/is provided as means for applying a predetermined force.
  7. Device according to one of the preceding claims, characterized in that the means (30, 32) for applying a predetermined force act on the plunger (14) via at least one lever arm (31).
  8. Device according to one of the preceding claims, characterized in that at least one stop member (35) is provided for defining the displacement path of a stroke of the plunger (14).
  9. Device according to one of the preceding claims, characterized in that means (40) are provided that prevent the product to be filled from sticking to the plunger (14).
  10. Device according to Claim 2, characterized in that the detecting means (42) is located directly above the plunger (14).
  11. Device according to Claim 7, characterized in that the lever arm (31) is connected to the plunger (14) by means of at least one pressing rod (36) and/or the guide (38), preferably a straight guide with a locking element.
EP09748106.3A 2008-12-18 2009-11-03 Device for filling and compacting pourable products Active EP2379411B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008054922A DE102008054922A1 (en) 2008-12-18 2008-12-18 Device for filling and compacting free-flowing products
PCT/EP2009/064493 WO2010069665A1 (en) 2008-12-18 2009-11-03 Device for filling and compacting pourable products

Publications (2)

Publication Number Publication Date
EP2379411A1 EP2379411A1 (en) 2011-10-26
EP2379411B1 true EP2379411B1 (en) 2014-05-07

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EP09748106.3A Active EP2379411B1 (en) 2008-12-18 2009-11-03 Device for filling and compacting pourable products

Country Status (6)

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US (1) US8783004B2 (en)
EP (1) EP2379411B1 (en)
CN (1) CN102256873B (en)
BR (1) BRPI0923458A2 (en)
DE (1) DE102008054922A1 (en)
WO (1) WO2010069665A1 (en)

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CN109848602A (en) * 2019-02-20 2019-06-07 深圳市聚峰锡制品有限公司 A kind of production method that solder horn brings back to life cream

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Also Published As

Publication number Publication date
US20110247307A1 (en) 2011-10-13
US8783004B2 (en) 2014-07-22
WO2010069665A1 (en) 2010-06-24
BRPI0923458A2 (en) 2016-01-12
EP2379411A1 (en) 2011-10-26
DE102008054922A1 (en) 2010-06-24
CN102256873B (en) 2013-11-06
CN102256873A (en) 2011-11-23

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