EP0427964B1 - Device for the trouble-free packaging - Google Patents

Device for the trouble-free packaging Download PDF

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Publication number
EP0427964B1
EP0427964B1 EP90119674A EP90119674A EP0427964B1 EP 0427964 B1 EP0427964 B1 EP 0427964B1 EP 90119674 A EP90119674 A EP 90119674A EP 90119674 A EP90119674 A EP 90119674A EP 0427964 B1 EP0427964 B1 EP 0427964B1
Authority
EP
European Patent Office
Prior art keywords
measuring container
funnel
filling
base
central axis
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.)
Expired - Lifetime
Application number
EP90119674A
Other languages
German (de)
French (fr)
Other versions
EP0427964A2 (en
EP0427964A3 (en
Inventor
Helmut Grüne
Manfred Nordmeyer
Jens Quirling
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.)
Lieder Maschinenbau GmbH and Co KG
Original Assignee
Lieder Maschinenbau GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lieder Maschinenbau GmbH and Co KG filed Critical Lieder Maschinenbau GmbH and Co KG
Publication of EP0427964A2 publication Critical patent/EP0427964A2/en
Publication of EP0427964A3 publication Critical patent/EP0427964A3/en
Application granted granted Critical
Publication of EP0427964B1 publication Critical patent/EP0427964B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00Packaging 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
    • B65B1/30Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/36Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/30Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B37/00Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged

Definitions

  • the invention relates to a device for the gentle packaging of a product that can be influenced in its consistency by external influences with at least one measuring container that is pivotably mounted in a housing and has a constant cross-section, the inlet cross-section of which, when filled, causes the product to be symmetrical to the one that is approximately perpendicular when filled
  • This device is known from FR-A-1 152 724. It has a measuring container with a variable volume, the variability of which is brought about by a base which is displaceably mounted along the central axis of the measuring container. This is slidably mounted in a bore, which in any case forms the measuring container in its upper part. This bore is located within a cylindrical shaft which penetrates the bore transverse to the longitudinal axis approximately along a diameter line. A screw is arranged in the bore which, depending on the desired filling capacity of the bore forming the measuring container, can be screwed more or less far into the bore. With its head, the screw forms the adjustable bottom of the measuring container. When the measuring container is filled, the upper part of the bore forms an inlet cross section which, after the shaft has been pivoted, faces an unillustrated packaging container as the outlet cross section.
  • Such a device is no longer up to modern filling requirements.
  • it cannot be used for the gentle packaging of a product whose consistency can be influenced by external influences, since such a product would set itself into the threads within which the screw forming the movable base must be screwed.
  • Such a screw can therefore not be used to form a measuring container that should have a variable volume for the purpose of filling sensitive products.
  • the device known from the document does not meet modern demands on packaging technology because, for the purpose of changing the filling volume, the machine is shut down, partially disassembled, the screw that forms the base is adjusted, and then the machine is reinserted operational state must be moved. The resulting effort makes filling the sensitive product much too expensive.
  • the object of the present invention is therefore to improve the device of the type mentioned in the introduction in such a way that unhindered filling and emptying of the measuring container is made possible.
  • This displacement drive does not require any threads formed in the measuring container walls, so that the product rests on smooth container walls.
  • the threads do not become clogged with the product during filling, so that the product filled in through the inlet cross section is completely released again from the measuring container as soon as it has been pivoted and the inlet cross section has become the outlet cross section adjacent in the packaging container.
  • Complete filling and emptying of the measuring container is possible at the desired time interval.
  • a very high dosing accuracy can be guaranteed with a relatively fast operation of the device.
  • the volume of the measuring container can be varied slightly, so that a high dosing accuracy with a relatively fast operation of the device is guaranteed.
  • the setting of the desired volume is possible so precisely that a filling volume indicated on the packaging is achieved with an accuracy that is less than 1% of the quantity to be filled.
  • a device for gentle packaging of a product essentially consists of a housing (1), a rotary valve (2), a movable base (3) and a sliding drive (4).
  • the rotary valve (2) is mounted in the housing (1) so that it can pivot about its longitudinal axis (5).
  • the bearing takes place in the area of a pivot axis (6) which projects from one side (7) of the housing and is provided with a drive pinion (9) at its protruding end (8).
  • the rotary valve (2) At its end (10) projecting into the housing (1), the rotary valve (2) has a measuring container (12) enclosed by walls (11), which has a central axis (13) which is approximately perpendicular to the longitudinal axis (5) of the rotary valve ( 2) runs.
  • the measuring container (12) is constructed symmetrically to this central axis (13) and has a circular cross-section (14) which is constant with respect to the length of the central axis (13).
  • This cross-section (14) corresponds to a final cross-section (15), which is provided in the area of an outer diameter of the rotary valve (2) facing the housing (1).
  • the size of the inlet cross section (15) corresponds to a cross section of an inner bore (16) which extends through an inlet connector (17) and an outlet connector (18) and extends transversely to the longitudinal axis (5) of the rotary valve (2).
  • the base (3) is displaceably mounted in the longitudinal direction of the central axis (13) within the measuring container (12).
  • the bottom (3) is so precisely fitted into the measuring container (12) that a product (19) falling through the inlet cross section (15) into the measuring container (12) remains on the bottom (3).
  • the displacement drive (4) is provided for displacing the base (3) within the measuring container (12) and is connected to the base (3) via a pinion (20) and a toothed rack (21).
  • the rack (21) is fastened to a substructure (22) by means of retaining screws (23) which protrude from the rack (21) into the substructure (22).
  • the base (3) rises on the substructure (22) in the direction of the measuring container (12) and has a height (24) which fills the measuring container (12) up to a minimum filling volume (25).
  • the pinion (20) is fastened on a drive axis (26) which extends in an extension (27) of the longitudinal axis (5) of the rotary valve (2). In this way it is ensured that the pinion (20) has a rotating circle (28) which is concentric with the central axis (5).
  • the toothed rack (21) thus runs with its longitudinal axis (29) offset around the rotating circle (28) outside a cutting plane through the longitudinal axis (5).
  • the rack (21) is fastened on a segment (30) which is fastened to the substructure (22) of the base (3) with the aid of the retaining screws (23).
  • a spring (31) runs parallel to the rack (21) on this segment (30) and extends over the entire segment (30) in the direction of the rack (21) on its side facing away from the pinion (20).
  • This tongue (31) protrudes into a groove (32) which is formed on a guide plate (33).
  • This guide plate (33) extends as a circular disk along a rear side (34) of the pinion (20) which faces away from the measuring container (12) and which lies with the rear side (34) on the guide plate (33).
  • a bore (35) extends through the center thereof and is rotatably mounted on the guide plate (33) on the drive axis (26).
  • the guide plate (33) has a guide projection (35) with which the guide plate (33) is rotatably mounted in a cover (36), with the aid of which an opening (37) is provided, which is provided in the housing (1).
  • This opening (37) is opposite to the side (7) of the housing (1).
  • An interior (38) of the housing (1) is accessible through the opening (37) so that the rotary slide valve (2) can be inserted into the interior (38), the inner cross section of which is the outer cross section Cross section of the rotary valve (2) in the area of the measuring container (12) corresponds.
  • the drive axle (26) carries a handwheel (40) which is fixedly connected to the drive axle (26) via a spring (41).
  • the pinion (20) executes movements that lead to the rack (21) and with it the substructure (22) executing movements.
  • the base (3) is moved within the measuring container (12).
  • a compression spring (43) is provided between the guide projection (35) and a rear side (42) of the handwheel (40) facing it, with the aid of which the handwheel (40) is pressed off the guide plate (33).
  • the pinion (20) is pressed against the guide plate (33), so that a relatively high friction is generated between the pinion (20) and the guide plate (33), which serves to make the pinion (20) self-locking against movements around the To store extension (27) of the longitudinal axis (5). In this way it is avoided that the pinion rotates without the base (3) being adjusted via the handwheel (40).
  • the displacement drive (4) is decoupled from pivoting movements which the measuring container (12) executes about the longitudinal axis (5).
  • the movements of the base (3) take place in any pivot position of the rotary slide (2) along the central axis (13), since the base (3) is guided with the aid of the tongue and groove system (31, 32) becomes.
  • the guide plate (33) rotatably mounted within the cover (36) ensures that the tongue and groove system (31, 32) is always parallel to the central axis (13) of the measuring container (12).
  • the substructure (22) is guided in an interior space (44) which is formed within the rotary slide valve (2).
  • This interior space (44) is delimited by lateral walls (45, 46) which are plane-parallel to one another and run parallel to the central axis (13) of the measuring container (12).
  • the substructure (22) is guided with lateral boundaries (47, 48), each of which delimits end faces (49, 50) that run essentially plane-parallel and plane-parallel to the cover (36).
  • the segment (30) is fastened on the end face (49) facing the cover with the aid of the retaining screws (23).
  • the substructure (22) is delimited by an end surface (51) with which it rests on an inner wall (52) of the interior (44) closed by the rotary valve (2).
  • This end surface (51) is essentially circular in shape and has only a flattening at its lower end (53) facing away from the base (3), which flattens an air channel (54).
  • This air duct (54) is connected on the one hand via an air duct (55) to the measuring container (12) and on the other hand via an intermediate space (56) with an air inlet connection (57) through which compressed air enters the intermediate space (56) and thus via the air duct (54) and the air duct (55) can be introduced into the measuring container (12).
  • an opening (59) is provided in an upper part (58) delimiting the bottom (3) opposite the measuring container (12), through which the compressed air can be distributed evenly over a trough formed in the bottom (3). Due to this uniform distribution of the compressed air, the product (19) is driven out of the measuring container (12) when it is pivoted in the direction of the outlet port (18).
  • the space (56) serves to accommodate the pinion (20) and the rack (21).
  • the inlet cross section (15) lies perpendicularly below a filling station (62) through which the product (19) falls in free fall through the inlet cross section (15) into the measuring container (12).
  • the rotary slide valve (2) is pivoted about its longitudinal axis (5) so that the inlet cross section (15) in the outlet connection piece (18) faces. Now the product (19) can fall through the outlet connection (18) in free fall into the packaging unit (60).
  • the product (19) is fed to the filling station (62) by a dosing system (63).
  • a dosing system consists of a conveyor (64) and a metering funnel (65) from which a metered amount of the product (19) falls to the conveyor (64).
  • the conveyor (64) influences the product (19) only for a limited time until it is fed to the filling station (62).
  • the dosing funnel (65) is filled with the aid of a swivel funnel (66) which has an outlet nozzle (67) from which the product (19) is filled into the dosing funnel (65).
  • the swivel funnel (66) is pivotably mounted on a swivel bearing (69) at an outer end (68) adjacent to the metering funnel (65).
  • This swivel bearing (69) is fastened to a base plate (70) of the swivel funnel (66), on the end (71) of which is remote from the swivel bearing (69), a swivel drive (72) is articulated.
  • the dispensing nozzle (67) runs in a direction (74) that delivers the product (19) to the metering funnel (65). This is essentially downward, so that the product (19) slides due to its own weight out of the dispensing nozzle (67) in the direction of the metering funnel (65).
  • the product (19) is bounded on the one hand by the base plate (70) and on the other hand by walls (75) which, when the pivoting funnel (66) is pivoted, are directed downwards in the direction of the metering funnel (65). In this pivoting position, the product (19) lying in the outlet connection (67) and in an inlet (76) adjoining it in the direction of the base plate (70) leaves the outlet connection (67) in the direction of the metering funnel (65).
  • the product (19) lies in the pivoted state (73) of the swivel funnel (66), the product (19) lies on a side wall (77) into which the wall (75) of the dispensing nozzle (67) opens .
  • this side wall (77) has its highest point (78) in the region of the dispensing nozzle (67) and extends obliquely downwards from there into one of the Output port (67) opposite direction. It delimits a funnel space (79), on the side of which, facing away from the side wall (77), the base plate (70) runs with an upper part (80) which is slightly pivoted in the direction of the side wall (77).
  • This upper part (80) has an upper edge (81) facing away from the pivot bearing (69), which is connected to the side wall (77) via an upper end plate (82) and forms a storage space with the side wall in which the product (19) is stowed is that is not in the area of influence of the inlet (76).
  • the bend in the direction of the upper part (80) only takes place above the inlet (76). At this point the upper part is angled in the form of an obtuse angle relative to the lower part of the base plate (70).
  • the discharge nozzle (67) is inclined slightly upward, so that the lower part of the base plate (70) extends down to a lowest point (83) from the pivot bearing (69) and with the lowest point (83) beginning of the sump angled upper part (80) delimits a funnel space (79) into which the product (19) falls when the swivel funnel (66) is pivoted. In this way, it fills the inlet (76) and part of the discharge nozzle (67), from which the product (19) flows again in the direction of the metering funnel (65) the next time the pivoting funnel (67) is pivoted.
  • the hopper space (79) is filled in the non-pivoted state (84).
  • the swivel funnel (66) is swiveled around the swivel bearing (69) in which the swivel drive (72) is actuated.
  • the product (19) lying in the area of the inlet (76) thereby comes into a position from which it can flow out into the metering funnel (65) due to its own gravity via the outlet connection (67).
  • the The swivel funnel (66) is swiveled again about the swivel bearing (69), so that recently the inlet and essential parts of the dispensing nozzle (67) can be filled with the product (19) which, when the swivel funnel (66) is swiveled, in the region of the side wall 77).

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

Description

Die Erfindung betrifft eine Vorrichtung zum schonenden Verpacken eines durch äußere Einflüsse in seiner Konsistenz beeinflußbaren Produktes mit mindestens einem in einem Gehäuse verschwenkbar gelagerten Meßbehälter gleichbleibenden Querschnitts, dessen Einlaßquerschnitt, durch den beim Befüllen das Produkt in den symmetrisch zu einer beim Befüllen in etwa lotrechter Richtung verlaufenden Mittelachse ausgebildeten Meßbehälter gleitet, nach einem Verschwenken des Meßbehälters als Auslaßquerschnitt einer zu befüllenden Verpackungseinheit zugewandt ist, und der einen durch einen entlang der Mittelachse verschieblich gelagerten Boden variablen Rauminhalt aufweist.The invention relates to a device for the gentle packaging of a product that can be influenced in its consistency by external influences with at least one measuring container that is pivotably mounted in a housing and has a constant cross-section, the inlet cross-section of which, when filled, causes the product to be symmetrical to the one that is approximately perpendicular when filled The central axis of the measuring container slides, after pivoting the measuring container, as an outlet cross-section, faces a packaging unit to be filled, and which has a variable volume due to a floor which is displaceably mounted along the central axis.

Diese Vorrichtung ist aus der FR-A- 1 152 724 bekannt geworden. Sie besitzt einen Meßbehälter mit variablem Rauminhalt, dessen Variabilität durch einen entlang der Mittelachse des Meßbehälters verschieblich gelagerten Boden zustande kommt. Dieser ist in einer Bohrung verschieblich gelagert, die jedenfalls in ihrem oberen Teil den Meßbehälter bildet. Diese Bohrung befindet sich innerhalb einer zylindrischen Welle, die die Bohrung quer zur Längsachse etwa entlang einer Durchmesserlinie durchdringt. In der Bohrung ist eine Schraube angeordnet, die je nach dem gewünschten Füllungsvermögen der den Meßbehälter bildenden Bohrung mehr oder minder weit in die Bohrung hineingeschraubt werden kann. Die Schraube bildet mit ihrem Kopf den verstellbaren Boden des Meßbehälters. Der obere Teil der Bohrung bildet beim Befüllen des Meßbehälters einen Einlaßquerschnitt aus, der nach dem Verschwenken der Welle als Auslaßquerschnitt einem nicht dargestellten Verpackungsbehälter Zugewandt ist.This device is known from FR-A-1 152 724. It has a measuring container with a variable volume, the variability of which is brought about by a base which is displaceably mounted along the central axis of the measuring container. This is slidably mounted in a bore, which in any case forms the measuring container in its upper part. This bore is located within a cylindrical shaft which penetrates the bore transverse to the longitudinal axis approximately along a diameter line. A screw is arranged in the bore which, depending on the desired filling capacity of the bore forming the measuring container, can be screwed more or less far into the bore. With its head, the screw forms the adjustable bottom of the measuring container. When the measuring container is filled, the upper part of the bore forms an inlet cross section which, after the shaft has been pivoted, faces an unillustrated packaging container as the outlet cross section.

Eine solche Vorrichtung ist modernen Abfüllansprüchen nicht mehr gewachsen. Insbesondere kann sie zum schonenden Verpacken einer durch äußere Einflüsse in seiner Konsistenz beeinflußbaren Produktes nicht verwendet werden, da ein solches Produkt sich in die Gewindegänge setzen würde, innerhalb derer die den verschieblichen Boden bildende Schraube verschraubt werden muß. Eine solche Schraube kann daher zur Ausbildung eines Meßbehälters nicht verwendet werden, der zum Zwecke der Abfüllung empfindlicher Produkte ein variables Volumen besitzen soll. Darüber hinaus genügt aber die aus der Entgegenhaltung bekannt gewordene Vorrichtung auch deswegen modernen Ansprüchen an die Verpackungstechnik nicht, weil zum Zwecke der Veränderung des Abfüllvolumens die Maschine stillgesetzt, teilweise demontiert, die Schraube, die den Boden bildet, verstellt und anschließend die Maschine wieder in einen betriebsfertigen Zustand versetzt werden muß. Der dadurch entstehende Aufwand macht das Abfüllen des empfindlichen Produktes viel zu teuer.Such a device is no longer up to modern filling requirements. In particular, it cannot be used for the gentle packaging of a product whose consistency can be influenced by external influences, since such a product would set itself into the threads within which the screw forming the movable base must be screwed. Such a screw can therefore not be used to form a measuring container that should have a variable volume for the purpose of filling sensitive products. In addition, however, the device known from the document does not meet modern demands on packaging technology because, for the purpose of changing the filling volume, the machine is shut down, partially disassembled, the screw that forms the base is adjusted, and then the machine is reinserted operational state must be moved. The resulting effort makes filling the sensitive product much too expensive.

Aufgabe der vorliegenden Erfindung ist es daher, die Vorrichtung der einleitend genannten Art so zu verbessern, daß eine ungehinderte Befüllung und Entleerung des Meßbehälters ermöglicht wird.The object of the present invention is therefore to improve the device of the type mentioned in the introduction in such a way that unhindered filling and emptying of the measuring container is made possible.

Diese Aufgabe wird erfindungsgemäß nunmehr dadurch gelöst, daß der Boden mit einen ihn innerhalb des Meßbehälters verschiebenden Verschiebeantrieb verbunden ist.This object is now achieved according to the invention in that the bottom is connected to a displacement drive displacing it within the measuring container.

Dieser Verschiebeantrieb benötigt keine in den Meßbehälterwandungen ausgebildeten Gewindegänge, so daß das Produkt an glatten Behälterwandungen anliegt. Die Gewindegänge setzen sich mit dem Produkt während der Befüllung nicht zu, so daß das durch den Einlaßquerschnitt eingefüllte Produkt vollständig aus dem Meßbehälter wieder abgegeben wird, sobald dieser verschwenkt worden ist und der Einlaßquerschnitt zu dem im Verpackungsbehälter benachbarten Auslaßquerschnitt geworden ist. Eine im gewünschten Zeittakt vollkommene Befüllung und Entleerung des Meßbehälters ist möglich. Insofern kann eine sehr hohe Dosiergenauigkeit bei relativ schneller Arbeitsweise der Vorrichtung garantiert werden. Das Volumen des Meßbehälters kann leicht variiert werden, so daß eine hohe Dosiergenauigkeit bei relativ schneller Arbeitsweise der Vorrichtung garantiert ist. Die Einstellung des jeweils gewünschten Rauminhaltes ist so genau möglich, daß ein auf der Verpackung angegebenes Füllvolumen mit einer Genauigkeit erreicht wird, die unter 1 % der abzufüllenden Menge liegt.This displacement drive does not require any threads formed in the measuring container walls, so that the product rests on smooth container walls. The threads do not become clogged with the product during filling, so that the product filled in through the inlet cross section is completely released again from the measuring container as soon as it has been pivoted and the inlet cross section has become the outlet cross section adjacent in the packaging container. Complete filling and emptying of the measuring container is possible at the desired time interval. In this respect, a very high dosing accuracy can be guaranteed with a relatively fast operation of the device. The volume of the measuring container can be varied slightly, so that a high dosing accuracy with a relatively fast operation of the device is guaranteed. The setting of the desired volume is possible so precisely that a filling volume indicated on the packaging is achieved with an accuracy that is less than 1% of the quantity to be filled.

Weitere Einzelheiten der Erfindung ergeben sich aus der nachfolgenden ausführlichen Beschreibung und der beigefügten Zeichnungen, in denen eine bevorzugte Ausführungsform der Erfindung beispielsweise veranschaulicht ist.Further details of the invention will become apparent from the following detailed description and the accompanying drawings, in which a preferred embodiment of the invention is illustrated, for example.

In den Zeichnungen zeigen:

Fig. 1:
einen Längsschnitt durch eine Vorrichtung gemäß der Schnittlinie I-I durch einen Drehschieber in dessen Befüllungsposition,
Fig. 2:
einen Längsschnitt durch eine Vorrichtung, ähnlich wie in Figur 1 jedoch in Ausgabeposition des Meßbehälters,
Fig. 3:
einen Querschnitt durch einen Drehschieber entsprechend der Schnittlinie III-III in Figur 1,
Fig. 4:
einen Längsschnitt durch ein Gehäuse entsprechend der Schnittlinie IV-IV in Figur 5,
Fig. 5:
einen Querschnitt durch ein Gehäuse entsprechend der Schnittlinie V-V in Figur 4,
Fig. 6:
einen Längsschnitt durch einen Drehschieber entsprechend der Schnittlinie VI-VI in Figur 7,
Fig. 7:
einen Querschnitt durch einen Drehschieber entsprechend der Schnittlinie VII-VII in Figur 6,
Fig. 8:
eine teilweise geschnittene Seitenansicht eines Bodens mit Unterbau,
Fig. 9:
eine Seitenansicht des Bodens mit Unterbau,
Fig.10:
eine Draufsicht auf eine Führungsplatte,
Fig.11:
einen Längsschnitt durch eine Führungsplatte gemäß der Schnittlinie XII-XII in Figur 10,
Fig.12:
eine Draufsicht auf eine Zahnstange,
Fig.13:
einen Querschnitt durch eine Zahnstange entsprechend der Schnittlinie XIII-XIII in Figur 12,
Fig.14:
eine Seitenansicht eines mit einer Antriebsachse versehenen Ritzels,
Fig.15:
eine Systemskizze eines Befüllungstrichters in Befüllungsposition,
Fig.16:
eine Systemskizze eines Schwenktrichters in teilweise verschwenkter Position,
Fig.17:
eine Systemskizze eines Schwenktrichters in verschwenkter Position und
Fig.18:
eine Systemskizze einer Anlage zum Verpacken von Produkten.
The drawings show:
Fig. 1:
2 shows a longitudinal section through a device according to section line II through a rotary slide valve in its filling position,
Fig. 2:
a longitudinal section through a device, similar to in FIG. 1, however, in the dispensing position of the measuring container,
Fig. 3:
2 shows a cross section through a rotary slide valve according to section line III-III in FIG. 1,
Fig. 4:
3 shows a longitudinal section through a housing according to the section line IV-IV in FIG. 5,
Fig. 5:
3 shows a cross section through a housing according to the section line VV in FIG. 4,
Fig. 6:
7 shows a longitudinal section through a rotary slide valve according to the section line VI-VI in FIG. 7,
Fig. 7:
6 shows a cross section through a rotary valve corresponding to section line VII-VII in FIG. 6,
Fig. 8:
a partially sectioned side view of a floor with substructure,
Fig. 9:
a side view of the floor with substructure,
Fig. 10:
a plan view of a guide plate,
Fig. 11:
10 shows a longitudinal section through a guide plate according to section line XII-XII in FIG. 10,
Fig. 12:
a top view of a rack,
Fig. 13:
3 shows a cross section through a toothed rack according to the section line XIII-XIII in FIG. 12,
Fig. 14:
2 shows a side view of a pinion provided with a drive axle,
Fig. 15:
a system sketch of a filling funnel in the filling position,
Fig. 16:
a system sketch of a swivel funnel in a partially swiveled position,
Fig. 17:
a system sketch of a swivel funnel in the swiveled position and
Fig. 18:
a system sketch of a system for packaging products.

Eine Vorrichtung zum schonenden Verpacken eines Produktes besteht im wesentlichen aus einem Gehäuse (1), einem Drehschieber (2), einem verschieblichen Boden (3) und einem Verschiebeantrieb (4). Der Drehschieber (2) ist um seine Längsachse (5) verschwenkbar im Gehäuse (1) gelagert. Die Lagerung erfolgt im Bereich einer Verschwenkachse (6), die aus einer Seite (7) des Gehäuses herausragt und an ihrem herausragenden Ende (8) mit einem Antriebsritzel (9) versehen ist.A device for gentle packaging of a product essentially consists of a housing (1), a rotary valve (2), a movable base (3) and a sliding drive (4). The rotary valve (2) is mounted in the housing (1) so that it can pivot about its longitudinal axis (5). The bearing takes place in the area of a pivot axis (6) which projects from one side (7) of the housing and is provided with a drive pinion (9) at its protruding end (8).

Der Drehschieber (2) besitzt an seinem in das Gehäuse (1) hineinragenden Ende (10) einen von Wandungen (11) umschlossenen Meßbehälter (12), der eine Mittelachse (13) aufweist, die etwa senkrecht zur Längsachse (5) des Drehschiebers (2) verläuft. Der Meßbehälter (12) ist symmetrisch zu dieser Mittelachse (13) aufgebaut und besitzt einen bezüglich der Länge der Mittelachse (13) gleichbleibenden kreisförmigen Querschnitt (14). Diesem Querschnitt (14) entspricht ein Finlaßquerschnitt (15), der im Bereich eines dem Gehäuse (1) zugewandten äußeren Durchmessers des Drehschiebers (2) vorgesehen ist. Der Größe des Einlaßquerschnittes (15) entspricht ein Querschnitt einer Innenbohrung (16), die sich durch einen Einlaßstutzen (17) und einen Auslaßstutzen (18) erstreckt und quer zur Längsachse (5) des Drehschiebers (2) verläuft. Innerhalb des Meßbehälters (12) ist der Boden (3) in Längsrichtung der Mittelachse (13) verschieblich gelagert. Dabei ist der Boden (3) in den Meßbehälter (12) so genau eingepaßt, daß ein durch den Einlaßquerschnitt (15) in den Meßbehälter (12) hineinfallendes Produkt (19) auf dem Boden (3) liegen bleibt.At its end (10) projecting into the housing (1), the rotary valve (2) has a measuring container (12) enclosed by walls (11), which has a central axis (13) which is approximately perpendicular to the longitudinal axis (5) of the rotary valve ( 2) runs. The measuring container (12) is constructed symmetrically to this central axis (13) and has a circular cross-section (14) which is constant with respect to the length of the central axis (13). This cross-section (14) corresponds to a final cross-section (15), which is provided in the area of an outer diameter of the rotary valve (2) facing the housing (1). The size of the inlet cross section (15) corresponds to a cross section of an inner bore (16) which extends through an inlet connector (17) and an outlet connector (18) and extends transversely to the longitudinal axis (5) of the rotary valve (2). The base (3) is displaceably mounted in the longitudinal direction of the central axis (13) within the measuring container (12). The bottom (3) is so precisely fitted into the measuring container (12) that a product (19) falling through the inlet cross section (15) into the measuring container (12) remains on the bottom (3).

Zur Verschiebung des Bodens (3) innerhalb des Meßbehälters (12) ist der Verschiebeantrieb (4) vorgesehen, der über ein Ritzel (20) und eine Zahnstange (21) mit dem Boden (3) in Verbindung steht. Die Zahnstange (21) ist an einem Unterbau (22) über Halteschrauben (23) befestigt, die von der Zahnstange (21) in den Unterbau (22) hineinragen. Auf dem Unterbau (22) erhebt sich in Richtung des Meßbehälters (12) der Boden (3), der eine Höhe (24) besitzt, die den Meßbehälter (12) bis zu einem Mindestabfüllvolumen (25) ausfüllt.The displacement drive (4) is provided for displacing the base (3) within the measuring container (12) and is connected to the base (3) via a pinion (20) and a toothed rack (21). The rack (21) is fastened to a substructure (22) by means of retaining screws (23) which protrude from the rack (21) into the substructure (22). The base (3) rises on the substructure (22) in the direction of the measuring container (12) and has a height (24) which fills the measuring container (12) up to a minimum filling volume (25).

Das Ritzel (20) ist auf einer Antriebsachse (26) befestigt, die in einer Verlängerung (27) der Längsachse (5) des Drehschiebers (2) verläuft. Auf diese Weise ist gewährleistet, daß das Ritzel (20) einen Drehkreis (28) besitzt, der konzentrisch zur Mittelachse (5) verläuft. Damit verläuft die Zahnstange (21) mit ihrer Längsachse (29) um den Drehkreis (28) versetzt außerhalb einer durch die Längsachse (5) gelegten Schnittebene.The pinion (20) is fastened on a drive axis (26) which extends in an extension (27) of the longitudinal axis (5) of the rotary valve (2). In this way it is ensured that the pinion (20) has a rotating circle (28) which is concentric with the central axis (5). The toothed rack (21) thus runs with its longitudinal axis (29) offset around the rotating circle (28) outside a cutting plane through the longitudinal axis (5).

Die Zahnstange (21) ist auf einem Segment (30) befestigt, das mit Hilfe der Halteschrauben (23) am Unterbau (22) des Bodens (3) befestigt ist. Auf diesem Segment (30) verläuft parallel zur Zahnstange (21) eine Feder (31), die sich über das gesamte Segment (30) in Richtung der Zahnstange (21) auf deren dem Ritzel (20) abgewandten Seite erstreckt. Diese Feder (31) ragt in eine Nut (32) hinein, die auf einer Führungsplatte (33) ausgebildet ist. Diese Führungsplatte (33) erstreckt sich als eine kreisförmige Scheibe entlang einer dem Meßbehälter (12) abgewandten Hinterseite (34) des Ritzels (20), das mit der Hinterseite (34) an der Führungsplatte (33) anliegt. Durch deren Mittelpunkt erstreckt sich eine Bohrung (35), mit der die Führungsplatte (33) auf der Antriebsachse (26) drehbar gelagert ist. Die Führungsplatte (33) besitzt einen Führungsansatz (35), mit der die Führungsplatte (33) drehbar in einem Deckel (36) gelagert ist, mit dessen Hilfe eine Öffnung (37) verschlossen ist, die im Gehäuse (1) vorgesehen ist. Diese Öffnung (37) liegt der Seite (7) des Gehäuses (1) gegenüber. Durch die Öffnung (37) ist ein Innenraum (38) des Gehäuses (1) zugänglich, so daß durch sie der Drehschieber (2) in den Innenraum (38) eingeführt werden kann, dessen innerer Querschnitt dem äußeren Querschnitt des Drehschiebers (2) im Bereich des Meßbehälters (12) entspricht.The rack (21) is fastened on a segment (30) which is fastened to the substructure (22) of the base (3) with the aid of the retaining screws (23). A spring (31) runs parallel to the rack (21) on this segment (30) and extends over the entire segment (30) in the direction of the rack (21) on its side facing away from the pinion (20). This tongue (31) protrudes into a groove (32) which is formed on a guide plate (33). This guide plate (33) extends as a circular disk along a rear side (34) of the pinion (20) which faces away from the measuring container (12) and which lies with the rear side (34) on the guide plate (33). A bore (35) extends through the center thereof and is rotatably mounted on the guide plate (33) on the drive axis (26). The guide plate (33) has a guide projection (35) with which the guide plate (33) is rotatably mounted in a cover (36), with the aid of which an opening (37) is provided, which is provided in the housing (1). This opening (37) is opposite to the side (7) of the housing (1). An interior (38) of the housing (1) is accessible through the opening (37) so that the rotary slide valve (2) can be inserted into the interior (38), the inner cross section of which is the outer cross section Cross section of the rotary valve (2) in the area of the measuring container (12) corresponds.

Die Antriebsachse (26) trägt an ihrem aus dem Gehäuse (1) herausragenden äußeren Ende (39) ein Handrad (40), das fest über eine Feder (41) mit der Antriebsachse (26) verbunden ist. Durch Bewegungen des Handrades (40) führt das Ritzel (20) Bewegungen aus, die dazu führen, daß die Zahnstange (21) und mit ihr der Unterbau (22) Bewegungen ausführt. Gleichzeitig mit dem Unterbau (22) wird der Boden (3) innerhalb des Meßbehälters (12) verschoben.At its outer end (39) protruding from the housing (1), the drive axle (26) carries a handwheel (40) which is fixedly connected to the drive axle (26) via a spring (41). By movements of the handwheel (40), the pinion (20) executes movements that lead to the rack (21) and with it the substructure (22) executing movements. Simultaneously with the substructure (22), the base (3) is moved within the measuring container (12).

Zwischen dem Führungsansatz (35) und einer ihm zugewandten Rückseite (42) des Handrades (40) ist eine Druckfeder (43) vorgesehen, mit deren Hilfe das Handrad (40) von der Führungsplatte (33) abgedrückt wird. Gleichzeitig wird das Ritzel (20) gegen die Führungsplatte (33) gepreßt, so daß zwischen dem Ritzel (20) und der Führungsplatte (33) eine relativ hohe Reibung erzeugt wird, die dazu dient, das Ritzel (20) selbsthemmend gegen Bewegungen um die Verlängerung (27) der Längsachse (5) zu lagern. Auf diese Weise wird vermieden, daß sich das Ritzel verdreht, ohne daß eine Verstellung des Bodens (3) über das Handrad (40) erfolgt.A compression spring (43) is provided between the guide projection (35) and a rear side (42) of the handwheel (40) facing it, with the aid of which the handwheel (40) is pressed off the guide plate (33). At the same time, the pinion (20) is pressed against the guide plate (33), so that a relatively high friction is generated between the pinion (20) and the guide plate (33), which serves to make the pinion (20) self-locking against movements around the To store extension (27) of the longitudinal axis (5). In this way it is avoided that the pinion rotates without the base (3) being adjusted via the handwheel (40).

Mit Hilfe des Ritzels (20) und der Zahnstange (21) erfolgt eine Abkopplung des Verschiebeantriebs (4) von Schwenkbewegungen, die der Meßbehälter (12) um die Längsachse (5) ausführt. Andererseits ist gewährleistet, daß die Bewegungen des Bodens (3) in jeder Schwenkposition des Drehschiebers (2) entlang der Mittelachse (13) erfolgen, da die Führung des Bodens (3) mit Hilfe des Nut-Feder-Systems (31, 32) vorgenommen wird. Durch die innerhalb des Deckels (36) drehbeweglich gelagerte Führungsplatte (33) ist gewährleistet, daß das Nut-Feder-System (31, 32) ständig parallel zur Mittelachse (13) des Meßbehälters (12) verläuft.With the help of the pinion (20) and the toothed rack (21), the displacement drive (4) is decoupled from pivoting movements which the measuring container (12) executes about the longitudinal axis (5). On the other hand, it is ensured that the movements of the base (3) take place in any pivot position of the rotary slide (2) along the central axis (13), since the base (3) is guided with the aid of the tongue and groove system (31, 32) becomes. The guide plate (33) rotatably mounted within the cover (36) ensures that the tongue and groove system (31, 32) is always parallel to the central axis (13) of the measuring container (12).

Darüber hinaus ist der Unterbau (22) in einem Innenraum (44) geführt, der innerhalb des Drehschiebers (2) ausgebildet ist. Dieser Innenraum (44) wird von seitlichen Wandungen (45, 46) begrenzt, die einander planparallel sind und parallel zur Mittelachse (13) des Meßbehälters (12) verlaufen. Auf diesen Wandungen (45, 46) wird der Unterbau (22) mit seitlichen Begrenzungen (47, 48) geführt, die jeweils Stirnflächen (49, 50) begrenzen, die einander im wesentlichen planparallel und planparallel zum Deckel (36) verlaufen. Auf der dem Deckel zugewandten Stirnfläche (49) ist das Segment (30) mit Hilfe der Halteschrauben (23) befestigt. Darüber hinaus wird der Unterbau (22) durch eine Abschlußfläche (51) begrenzt, mit der er auf einer Innenwandung (52) des vom Drehschiebers (2) geschlossenen Innenraumes (44) aufliegt. Diese Abschlußfläche (51) ist im wesentlichen kreisbogenförmig ausgebildet und besitzt lediglich an ihrem dem Boden (3) abgewandten unteren Ende (53) eine Abflachung, die einen Luftkanal (54) begrenzt.In addition, the substructure (22) is guided in an interior space (44) which is formed within the rotary slide valve (2). This interior space (44) is delimited by lateral walls (45, 46) which are plane-parallel to one another and run parallel to the central axis (13) of the measuring container (12). On these walls (45, 46) the substructure (22) is guided with lateral boundaries (47, 48), each of which delimits end faces (49, 50) that run essentially plane-parallel and plane-parallel to the cover (36). The segment (30) is fastened on the end face (49) facing the cover with the aid of the retaining screws (23). In addition, the substructure (22) is delimited by an end surface (51) with which it rests on an inner wall (52) of the interior (44) closed by the rotary valve (2). This end surface (51) is essentially circular in shape and has only a flattening at its lower end (53) facing away from the base (3), which flattens an air channel (54).

Dieser Luftkanal (54) steht einerseits über eine Luftführung (55) mit dem Meßbehälter (12) und andererseits über einen Zwischenraum (56) mit einem Lufteinlaßstutzen (57) in Verbindung, durch den Druckluft in den Zwischenraum (56) und damit über den Luftkanal (54) und die Luftführung (55) in den Meßbehälter (12) eingeleitet werden kann. Zu diesem Zwecke ist in einem den Boden (3) gegenüber dem Meßbehälter (12) begrenzenden Oberteil (58) eine Mündung (59) vorgesehen, durch die die Druckluft gleichmäß über ein im Boden (3) ausgebildete Mulde verteilt werden kann. Auf Grund dieser gleichmäßigen Verteilung der Druckluft wird das Produkt (19) aus dem Meßbehälter (12) herausgetrieben, wenn dieser in Richtung auf den Auslaßstutzen (18) verschwenkt ist. Der Zwischenraum (56) dient der Aufnahme des Ritzels (20) und der Zahnstange (21). Darüber hinaus bleibt genügend Freiraum, durch den die Druckluft in Richtung auf den Luftkanal (54) abfließen kann. Diese wird einer nicht dargestellten Druckluftquelle entnommen, die an den Lufteinlaßstutzen (57) angeschlossen wird.This air duct (54) is connected on the one hand via an air duct (55) to the measuring container (12) and on the other hand via an intermediate space (56) with an air inlet connection (57) through which compressed air enters the intermediate space (56) and thus via the air duct (54) and the air duct (55) can be introduced into the measuring container (12). For this purpose, an opening (59) is provided in an upper part (58) delimiting the bottom (3) opposite the measuring container (12), through which the compressed air can be distributed evenly over a trough formed in the bottom (3). Due to this uniform distribution of the compressed air, the product (19) is driven out of the measuring container (12) when it is pivoted in the direction of the outlet port (18). The space (56) serves to accommodate the pinion (20) and the rack (21). In addition, there is sufficient space through which the compressed air can flow off in the direction of the air duct (54). This is taken from a compressed air source, not shown, which is connected to the air inlet connector (57).

Der Einlaßquerschnitt (15) liegt lotrecht unterhalb einer Befüllungsstation (62), durch die das Produkt (19) im freien Fall durch den Einlaßquerschnitt (15) in den Meßbehälter (12) fällt. Sobald dieser gefüllt ist, wird der Drehschieber (2) um seine Längsachse (5) verschwenkt, so daß der Einlaßquerschnitt (15) im Auslaßstutzen (18) zugewandt ist. Nunmehr kann das Produkt (19) durch den Auslaßstutzen (18) im freien Fall in die Verpackungseinheit (60) fallen.The inlet cross section (15) lies perpendicularly below a filling station (62) through which the product (19) falls in free fall through the inlet cross section (15) into the measuring container (12). As soon as it is filled, the rotary slide valve (2) is pivoted about its longitudinal axis (5) so that the inlet cross section (15) in the outlet connection piece (18) faces. Now the product (19) can fall through the outlet connection (18) in free fall into the packaging unit (60).

Der Befüllungsstation (62) wird das Produkt (19) durch eine Dosieranlage (63) zugeführt. Dieses besteht aus einem Förderer (64) und einem Dosiertrichter (65), aus dem eine dosierte Menge des Produktes (19) dem Förderer (64) zufällt. Auf diese Weise wird erreicht, daß der Förderer (64) nur eine begrenzte Zeit auf das Produkt (19 Einfluß nimmt, bis dieses der Befüllungsstation (62) zugeführt ist.The product (19) is fed to the filling station (62) by a dosing system (63). This consists of a conveyor (64) and a metering funnel (65) from which a metered amount of the product (19) falls to the conveyor (64). In this way it is achieved that the conveyor (64) influences the product (19) only for a limited time until it is fed to the filling station (62).

Der Dosiertrichter (65) wird mit Hilfe eines Schwenktrichters (66) befüllt, der einen Ausgabestutzen (67) besitzt, aus dem das Produkt (19) in den Dosiertrichter (65) abgefüllt wird. An einem dem Dosiertrichter (65) benachbarten äußeren Ende (68) ist der Schwenktrichter (66) auf einem Schwenklagert (69) verschwenkbar gelagert. Dieses Schwenklager (69) ist an einer Grundplatte (70) des Schwenktrichters (66) befestigt, an deren dem Schwenklagert (69) abgewandten Ende (71) ein Schwenkantrieb (72) angelenkt ist. Der Ausgabestutzen (67) verläuft in einem verschwenkten Zustand (73) des Schwenktrichters (66) in einer das Produkt (19) an den Dosiertrichter (65) abgebenden Richtung (74). Diese ist im wesentlichen abwärts verlaufend, so daß das Produkt (19) auf Grund seines eigenen Gewichtes aus dem Ausgabestutzen (67) in Richtung auf den Dosiertrichter (65) gleitet. Dabei wird das Produkt (19) einerseits von der Grundfplatte (70) und andererseits von Wandungen (75) begrenzt, die im verschwenkten Zustand des Schwenktrichters (66) in Richtung auf den Dosiertrichter (65) abwärts gerichtet sind. In dieser Schwenkstellung verläßt das im Ausgabestutzen (67) und in einem sich daran in Richtung der Grundplatte (70) anschließenden Zulauf (76) liegende Produkt (19) den Ausgabestutzen (67) in Richtung auf den Dosiertrichter (65).The dosing funnel (65) is filled with the aid of a swivel funnel (66) which has an outlet nozzle (67) from which the product (19) is filled into the dosing funnel (65). The swivel funnel (66) is pivotably mounted on a swivel bearing (69) at an outer end (68) adjacent to the metering funnel (65). This swivel bearing (69) is fastened to a base plate (70) of the swivel funnel (66), on the end (71) of which is remote from the swivel bearing (69), a swivel drive (72) is articulated. In a pivoted state (73) of the swivel funnel (66), the dispensing nozzle (67) runs in a direction (74) that delivers the product (19) to the metering funnel (65). This is essentially downward, so that the product (19) slides due to its own weight out of the dispensing nozzle (67) in the direction of the metering funnel (65). The product (19) is bounded on the one hand by the base plate (70) and on the other hand by walls (75) which, when the pivoting funnel (66) is pivoted, are directed downwards in the direction of the metering funnel (65). In this pivoting position, the product (19) lying in the outlet connection (67) and in an inlet (76) adjoining it in the direction of the base plate (70) leaves the outlet connection (67) in the direction of the metering funnel (65).

Außerhalb des Ausgabestutzens (67) liegt das Produkt (19) liegt im verschwenkten Zustande (73) des Schwenktrichters (66) das Produkt (19) auf einer Seitenwandung (77) auf, in die die Wandung (75) des Ausgabestutzens (67) einmündet. Diese Seitenwandung (77) besitzt im verschwenkten Zustand (73) des Schwenktrichters (66) ihren höchsten Punkt (78) im Bereich des Ausgabestutzens (67) und erstreckt sich von diesem schräg abwärts in eine vom Ausgabestutzen (67) abegwandte Richtung. Sie begrenzt einen Trichterraum (79), auf dessen der Seitenwandung (77) abgewandten Seite die Grundplatte (70) mit einem in Richtung auf die Seitenwandung (77) leicht verschwenkten Oberteil (80) verläuft. Dieses Oberteil (80) besitzt eine dem Schwenklagert (69) abewandte Oberkante (81), die über eine obere Abschlußplatte (82) mit der Seitenwandung (77) verbunden ist und mit der Seitenwandung einen Stauraum ausbildet, in der das Produkt (19) aufgestaut ist, das nicht im Einflußbereich des Zulaufs (76) liegt.Outside the dispensing nozzle (67), the product (19) lies in the pivoted state (73) of the swivel funnel (66), the product (19) lies on a side wall (77) into which the wall (75) of the dispensing nozzle (67) opens . In the pivoted state (73) of the swivel funnel (66), this side wall (77) has its highest point (78) in the region of the dispensing nozzle (67) and extends obliquely downwards from there into one of the Output port (67) opposite direction. It delimits a funnel space (79), on the side of which, facing away from the side wall (77), the base plate (70) runs with an upper part (80) which is slightly pivoted in the direction of the side wall (77). This upper part (80) has an upper edge (81) facing away from the pivot bearing (69), which is connected to the side wall (77) via an upper end plate (82) and forms a storage space with the side wall in which the product (19) is stowed is that is not in the area of influence of the inlet (76).

Die Grundplatte (70) begrenzt mit ihrem den Schwenklager (69) zugewandten Unterteil den Ausgabestutzen (67). Die Abwinkelung in Richtung auf den Oberteil (80) erfolgt erst oberhalb des Zulaufs (76). An dieser Stelle ist der Oberteil in Form eines stumpfen Winkels gegenüber dem unteren Teil der Grundplatte (70) abgewinkelt.The base plate (70), with its lower part facing the pivot bearing (69), delimits the discharge nozzle (67). The bend in the direction of the upper part (80) only takes place above the inlet (76). At this point the upper part is angled in the form of an obtuse angle relative to the lower part of the base plate (70).

Im unverschwenkten Zustand des Schwenktrichters (66) ist der Ausgabestutzen (67) leicht aufwärts geneigt, so daß sich der untere Teil der Grundplatte (70) bis zu einem niedrigsten Punkt (83) vom Schwenklager (69) abwärts erstreckt und mit dem am niedrigsten Punkt (83) beginnenden Sumpf abgewinkelten Oberteil (80) einen Trichterraum (79) begrenzt, in den das Produkt (19) beim Verschwenken des Schwenktrichters (66) hineinfällt. Es füllt auf diese Weise den Zulauf (76) und einen Teil des Ausgabestutzens (67) wieder aus, aus dem beim nächsten Verschwenken des Schwenktrichters (67) das Produkt (19) in Richtung auf den Dosiertrichter (65) wieder abfließt.In the non-pivoted state of the pivoting funnel (66), the discharge nozzle (67) is inclined slightly upward, so that the lower part of the base plate (70) extends down to a lowest point (83) from the pivot bearing (69) and with the lowest point (83) beginning of the sump angled upper part (80) delimits a funnel space (79) into which the product (19) falls when the swivel funnel (66) is pivoted. In this way, it fills the inlet (76) and part of the discharge nozzle (67), from which the product (19) flows again in the direction of the metering funnel (65) the next time the pivoting funnel (67) is pivoted.

Im unverschwenkten Zustand (84) wird der Trichterraum (79) befüllt. nach der Entleerung des Dosiertrichters (65) wird der Schwenktrichter (66) um das Schwenklager (69) verschwenkt, in dem der Schwenkantrieb (72) betätigt wird. Dabei gerät das im Bereich des Zulaufs (76) liegende Produkt (19) in eine Lage, aus der es auf Grund eigener Schwerkraft über den Ausgabestutzen (67) in den Dosiertrichter (65) abfließen kann. Nachdem das im Bereich des Ausgabestutzens (67) und Zulaufs (76) liegende Produkt (19) in Richtung auf den Dosiertrichter (65) abgeflossen ist, wird der Schwenktrichter (66) wieder um das Schwenklager (69) verschwenkt, so daß neuerdings der Zulauf und wesentliche Teile des Ausgabestutzens (67) mit dem Produkt (19) befüllt werden kann, das im verschwenkten Zustand des Schwenktrichters (66) im Bereich der Seitenwandung (77) lag.The hopper space (79) is filled in the non-pivoted state (84). After the metering funnel (65) has been emptied, the swivel funnel (66) is swiveled around the swivel bearing (69) in which the swivel drive (72) is actuated. The product (19) lying in the area of the inlet (76) thereby comes into a position from which it can flow out into the metering funnel (65) due to its own gravity via the outlet connection (67). After the product (19) lying in the area of the discharge nozzle (67) and inlet (76) has flowed off in the direction of the metering funnel (65), the The swivel funnel (66) is swiveled again about the swivel bearing (69), so that recently the inlet and essential parts of the dispensing nozzle (67) can be filled with the product (19) which, when the swivel funnel (66) is swiveled, in the region of the side wall 77).

Claims (53)

  1. Device for careful packing of a product, the consistency of which may be affected by external influences, with at least one measuring container (12) pivotably mounted in a housing (1) and having a constant cross-section, the measuring container inlet cross-section (15), through which the product slides during filling into the measuring container (12) which is configured symmetrically with respect to a central axis (13) running in an approximately vertical direction during filling, after pivoting of the measuring container (12) turns to face, as an outlet cross-section, a packing unit (60) to be filled, said measuring container (12) having a variable volume due to a base (3) mounted so that it can slide along the central axis (13), characterised in that the base (3) is connected to a sliding slide driver (4) within the measuring container (12).
  2. Device according to claim 1, characterised in that the slide driver (4) extends out of the housing (1) by means of a drive axle (26).
  3. Device according to claim 2, characterised in that the drive axle (26) is connected to the base (3) by means of a coupling allowing relative motion of the base (3) with respect to the moving measuring container (12).
  4. Device according to one of claims 2 or 3, characterised in that a toothed rack (21), the longitudinal axis (29) of which runs substantially parallel to the central axis (13) of the measuring container (12), is fixed onto the base (3) and is engaged with a pinion (20) fixed onto the drive axle (26).
  5. Device according to one of claims 2 to 4, characterised in that the base (3) is guided in the direction of the central axis (13) of the measuring container (12).
  6. Device according to claim 5, characterised in that the base (3) is guided on walls (11) of the measuring container (12).
  7. Device according to one of claims 5 or 6, characterised in that the base (3) is guided on a supporting structure (22) mounted in the housing, which extends as a projection of the central axis (13) of the measuring container (12) on a side of the base (3) facing away from the measuring container.
  8. Device according to claim 7, characterised in that the supporting structure (22) is guided on a guide plate (33) which is coupled to the measuring container (12) and is pivotably mounted together therewith in the housing (1).
  9. Device according to claim 8, characterised in that the guide plate (33) is coupled to the toothed rack (21) by means of a tongue and groove system (31, 32) which extends substantially parallel to the central axis (13) of the measuring container (12).
  10. Device according claim 9, characterised in that the guide plate (33) is mounted pivotably on the drive axle (26).
  11. Device according to one of claims 9 or 10, characterised in that the guide plate (33) extends substantially plane-parallel with respect to a cover which closes an opening (37) provided in the housing (1), through which opening an internal space (38) of the housing (1) is accessible, in which housing a rotary valve (2) is pivotably mounted in which the measuring container (12) is configured.
  12. Device according claim 11, characterised in that the internal space (38) is configured substantially in the shape of a cylinder, upon the inner walls (52) of which the rotary valve (2) with its cylindrical surface is pivotably mounted, in which the inlet cross-section (15) is configured.
  13. Device according one of claims 11 or 12, characterised in that the measuring container (12) extends with its central axis (13) at right-angles to the longitudinal axis (5) of the rotary valve (2).
  14. Device according to one of claims 11 to 13, characterised in that the measuring container (12) extends in an upper part of the rotary valve (2) adjacent to the inlet cross-section (15), and the supporting structure (22) is mounted in a lower part of the rotary valve (2) and extends in the direction of the central axis (13) of the measuring container (12) and following said container as far as a cylindrical inner wall (52) delimiting the rotary valve (2).
  15. Device according to claim 14, characterised in that the supporting structure (22) is provided with an outer edge surface (51) matched to the cylindrical wall (52) of the rotary valve (2), with which the supporting structure (22) is supported on the internal wall (52) of the rotary valve (2) when the base (3) is furthest from the inlet cross-section (15).
  16. Device according to one of claims 14 or 15, characterised in that the supporting structure (22) is provided with lateral limits (47, 48) which adjoin the outer edge surface (51) and run substantially parallel to the central axis (13) of the measuring container (12) and each support lateral walls (45, 46) which each run parallel to the central axis (13) of the measuring container (12) and are configured in the rotary valve (2).
  17. Device according to claim 16, characterised in that the lateral walls (45, 46) delimit an internal space (44) configured in the rotary valve (2), into which the measuring container opens from the inlet cross-section (15) in the direction of the central axis (13), the walls (11) of which delimit the upper side (85) of the internal space (44) facing the measuring container (12).
  18. Device according to one of claims 16 or 17, characterised in that the lateral walls (45, 46) run substantially plane-parallel to one another.
  19. Device according to one of claims 17 or 18, characterised in that the height of the internal space (44) up to its upper side (85) corresponds to the total height of the supporting structure (22) and the base (3) connected thereto.
  20. Device according to one of claims 7 to 19, characterised in that the toothed rack (21) is fixed to the supporting structure (22).
  21. Device according to claim 20, characterised in that the toothed rack (21) is fixed outside and parallel to the central axis (13) of the measuring container (12) running through the supporting structure (22).
  22. Device according to claim 21, characterised in that the pinion (20) engaged with the toothed rack (21) is provided with a central axis which is vertical with respect to the central axis (13) of the measuring container (12).
  23. Device according to one of claims 21 or 22, characterised in that the drive axle (26) is provided with a central axis extending through the central axis (13) of the pinion (20).
  24. Device according to one of claims 7 to 22, characterised in that the an air conduit (55) extends through the supporting structure (22) and the base (3) in the measuring container (12).
  25. Device according to claim 24, characterised in that the base (3) has a height (24) which extends in the measuring container (12) as far as the minimum filling volume (25).
  26. Device according to one of claims 20 to 25, characterised in that the toothed rack (21) is fixed to an end face (49) of the supporting structure (22), facing the cover (36) of the housing (1).
  27. Device according to claim 26, characterised in that the supporting structure (22) is delimited by two end faces (49, 50) substantially plane-parallel to one another, between which the lateral limits (47, 48) extend.
  28. Device according to one of claims 26 or 27, characterised in that the pinion (20) and the guide plate (33) guiding the toothed rack (21) are arranged in a gap (56) arranged between the cover (36) on the one hand and the end face (49) facing it on the other hand.
  29. Device according to claim 28, characterised in that in an air inlet fitting (57) is provided in the cover (36), which is in contact with the gap (56).
  30. Device according to claim 29. characterised in that the gap (56) is in contact with the air conduit (55).
  31. Device according to one of claims 11 to 30, characterised in that the guide plate (33) with a guide projection (35) in which the drive axle (26) is rotatably mounted, is rotatably mounted in the cover (36).
  32. Device according to claim 31, characterised in that the rear side of the guide plate (33) facing the cover (36) lies against the cover (36).
  33. Device according to claim 32, characterised in that the guide plate (33) is made from a material which is capable of sliding mutually with the material used for the cover (36).
  34. Device according to claim 33, characterised in that the cover (36) is constructed from steel and the guide plate (33) from brass.
  35. Device according to one of claims 2 to 24, characterised in that a hand wheel (40) for displacing the base (3) within the measuring container (12) and joined to the drive axle (26) is fixed to an end (39) of the drive axle (26) projecting out of the housing (1).
  36. Device according to claim 35, characterised in that a compression spring (43) is arranged between a rear side (42) of the hand wheel (40) facing the housing (1) and the guide projection (35) projecting out of the cover (36), which compression spring (43) presses the pinion (20) with its rear side (34) facing the guide plate (33) against the guide plate (33).
  37. Device according to one of claims 11 to 36, characterised in that the rotary valve (2) with a pivoting axle (6) projects out of the housing (1), and the pivoting axle (6) is pivotably mounted in a bearing configured in the housing (1).
  38. Device according to claim 37, characterised in that a drive pivoting the rotary valve (2) is coupled to the end (8) of the pivoting axle (6) projecting out of the housing (1).
  39. Device according to claim 38, characterised in that the drive is coupled to the pivoting axle (6) by means of a drive pinion (9) configured on the end of said pivoting axle (6).
  40. Filling installation with a device according to one of claims 1 to 39, characterised in that the inlet cross-section is arranged vertically beneath a filling point (62), which is connected to the inlet cross-section (15) by means of an open gradient section.
  41. Filling installation according to claim 40, characterised in that the filling installation (62) is connected to a metering installation (63) which fills it.
  42. Filling installation according to claim 41, characterised in that a metering funnel (65) depositing the product into the metering installation (63) is arranged above the metering installation (63), the contents of said funnel (65) corresponding to approximately one portion of product (19) to be metered.
  43. Filling installation according to claim 42, characterised in that the metering funnel (65) is arranged below a dispensing nozzle (67) of a filling funnel filling the metering funnel (65).
  44. Filling installation according to claim 43, characterised in that the filling funnel is configured as a pivoting funnel (66), the dispensing nozzle (67) of which, when the filling funnel is in the pivoted state (73), is in a dispensing direction (74) dispensing the product (19), and in a non-pivoted state (84) is in a filling direction allowing further discharge of the product (19) from a funnel chamber (79).
  45. Filling installation according to claim 44, characterised in that the pivoting funnel (66) is mounted pivotably about a pivoting axle (69) located on an end of the dispensing nozzle (67) facing away from the funnel chamber (79).
  46. Filling installation according to one of claims 44 or 45, characterised in that the funnel chamber (79) is provided with a configuration preventing further discharge of the product (19) into the dispensing nozzle (67) in the pivoted state (73).
  47. Filling installation according to claim 46, characterised in that the funnel chamber (79) is provided with a base plate (70) receiving the product (19) in the pivoted state (73), which joins the dispensing nozzle (67) which is delimited by a wall (75) on its side opposite the base plate (70), which joins a lateral wall (77) of the funnel chamber (79) opposite the base plate (70).
  48. Filling installation according to claim 47, characterised in that the lateral wall (77) is configured as a support for receiving the product (19) when the pivoting funnel (66) is in the pivoted state (73), which terminates in the area of the dispensing nozzle (67).
  49. Filling installation according to claim 48, characterised in that the base plate (70) is provided with an upper part (80) bent at an obtuse angle which delimits an external part of the funnel chamber (70) opposite the dispensing nozzle (67) and is bent in the direction of the lateral wall (77).
  50. Filling installation according to one of claims 47 to 49, characterised in that a pivot drive (72) for pivoting the pivoting funnel (66) is configured on an end of the upper part (80) opposite to the pivot bearing (69).
  51. Filling installation according to one of claims 47 to 50, characterised in that when the pivoting funnel (66) is in the pivoted state, the lateral wall (77) has a gradient with respect to the dispensing nozzle (67) inclined slightly away from the horizontal and together with an edge plate (82) delimiting the funnel chamber which extends from the lateral wall (77) in the direction of the base plate (70) forms a receiving space receiving the product (19) which is delimited by the supply (76) extending from the dispensing nozzle (67) into the funnel chamber (79).
  52. Filling installation according to claim 51, characterised in that end of the supply (76) opposite the dispensing nozzle (67) is delimited by the base plate (70).
  53. Filling installation according to one of claims 51 or 52, characterised in that the supply (76) runs along a bottom part of the base plate (70) facing towards the pivot bearing (69).
EP90119674A 1989-10-13 1990-10-15 Device for the trouble-free packaging Expired - Lifetime EP0427964B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3934323 1989-10-13
DE3934323 1989-10-13
DE3934518A DE3934518A1 (en) 1989-10-13 1989-10-17 GENTLE PACKAGING DEVICE
DE3934518 1989-10-17

Publications (3)

Publication Number Publication Date
EP0427964A2 EP0427964A2 (en) 1991-05-22
EP0427964A3 EP0427964A3 (en) 1991-11-13
EP0427964B1 true EP0427964B1 (en) 1996-01-10

Family

ID=25886109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119674A Expired - Lifetime EP0427964B1 (en) 1989-10-13 1990-10-15 Device for the trouble-free packaging

Country Status (4)

Country Link
US (1) US5209277A (en)
EP (1) EP0427964B1 (en)
CA (1) CA2027653A1 (en)
DE (1) DE3934518A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353722A (en) * 1964-07-08 1967-11-21 Mehta Maharaj Krishen Apparatus for measurement and feeding of powdered materials

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820577A (en) * 1953-12-03 1958-01-21 Fansteel Metallurgical Corp Powder feed mechanism
FR1152724A (en) * 1956-05-04 1958-02-24 Fansteel Metallurgical Corp Powder dispenser
FR1319616A (en) * 1962-04-10 1963-03-01 Melikian Inc Rudd Method and machine for packaging a material in successive pockets of a support in the form of a continuous ribbon, in particular for doses of coffee or similar infusion products and packages conforming to those thus obtained
DE1461982A1 (en) * 1964-02-19 1969-03-13 Marlen Equipment Company Tin can filling machine
US3656518A (en) * 1967-03-27 1972-04-18 Perry Ind Inc Method and apparatus for measuring and dispensing predetermined equal amounts of powdered material
DE3103686A1 (en) * 1981-01-30 1982-09-02 Schering Ag, 1000 Berlin Und 4619 Bergkamen DEVICE FOR APPLYING GRANULATED FERTILIZERS
JPS60237369A (en) * 1984-05-11 1985-11-26 Eisai Co Ltd Continuous measuring apparatus for reaction solution in very small container
US4905744A (en) * 1987-07-23 1990-03-06 Elopak A/S Liquid-flow control apparatus
DE3734361C2 (en) * 1987-10-10 2000-08-24 Lieder Maschinenbau Gmbh & Co Device for gentle packaging

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353722A (en) * 1964-07-08 1967-11-21 Mehta Maharaj Krishen Apparatus for measurement and feeding of powdered materials

Also Published As

Publication number Publication date
DE3934518A1 (en) 1991-04-18
CA2027653A1 (en) 1991-04-14
EP0427964A2 (en) 1991-05-22
US5209277A (en) 1993-05-11
EP0427964A3 (en) 1991-11-13

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