EP0003597A1 - Method and device for inspecting unopened packages in respect of the completeness of contents - Google Patents

Method and device for inspecting unopened packages in respect of the completeness of contents Download PDF

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Publication number
EP0003597A1
EP0003597A1 EP79100360A EP79100360A EP0003597A1 EP 0003597 A1 EP0003597 A1 EP 0003597A1 EP 79100360 A EP79100360 A EP 79100360A EP 79100360 A EP79100360 A EP 79100360A EP 0003597 A1 EP0003597 A1 EP 0003597A1
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EP
European Patent Office
Prior art keywords
packs
measured
contents
completeness
weight distributions
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.)
Granted
Application number
EP79100360A
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German (de)
French (fr)
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EP0003597B1 (en
Inventor
Hermann Dr. Grimminger
Hans-Joachim Reimer
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Hoechst AG
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Hoechst AG
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Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0003597A1 publication Critical patent/EP0003597A1/en
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Publication of EP0003597B1 publication Critical patent/EP0003597B1/en
Expired legal-status Critical Current

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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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level

Definitions

  • the invention relates to a method and a device for checking the contents of closed packs for completeness, which consists of a plurality of filling elements distributed over the packing volume, and these filling elements are not fixed in the pack.
  • the invention specified in claim 1 has for its object to provide a method by means of which it is possible to reliably detect missing package contents.
  • the invention is explained below with reference to a schematic drawing.
  • the figure shows the measuring device in an exemplary embodiment.
  • a conveyor device (6) inclined in the running direction for example a conveyor belt running endlessly over drive and guide rollers (5), is supported by a support (7).
  • the support (7) is also inclined in the running direction of the conveying device (6) and is arranged on force measuring devices (10) via force transmission elements (9). Inclination in the running direction is understood to mean both an upward and a downward inclination of the conveying device (6) or the support (7).
  • the force transmission elements (9) can expediently be held in their position via friction-free guide elements (8) by means of a holder (11).
  • a special variant of the device exists; in that the conveyor is inclined both upwards and downwards and is supported in both sections by a support (7).
  • a pre direction (3) for example a blow-out nozzle, for selective ejection of the packs.
  • Supporting elements (4) for the conveying device (6) can be arranged on both sides of the support (7) in order to avoid sagging of the conveying device in the region of the measuring section.
  • the pack is to be indicated with (1). Suitable light barriers (2) or similar must be used to ensure that the weighing is always carried out when the pack has reached a certain position in relation to the support (7).
  • Electronic load cells with a high natural frequency have proven themselves as force measuring devices (10).
  • a pack (1) the contents of which e.g. consists of a bottle (12) and a measuring spoon (13) is located on a conveyor belt (6) which is inclined upwards in the direction of rotation by the angle ⁇ .
  • the contents (12), (13) of the pack (1) are not fixed by additional aids. Missing e.g. the spoon (13), the bottle (12) is freely movable in the pack.
  • the angle of inclination ⁇ of the conveyor belt is chosen so that the bottle (12) in the pack can change its position by sliding or rolling.
  • the package may be advisable to bring the package into the opposite inclined position after passing the measuring streoke, to determine the weight distribution on a second measuring section, and then to compare the two weight distributions with one another. If the measuring spoon can lie on different sides of the bottle due to the process, a similar comparison is necessary.
  • the electrical signal obtained by the load cells (10) is processed in the usual way and, when a limit value specific to the packs to be checked is reached, a device (3) for selectively ejecting packs which are not completely filled is actuated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Container Filling Or Packaging Operations (AREA)

Abstract

Zum Kontrollieren des nicht fixierten Inhaltes von verschlossenen Packungen auf Vollständigkeit werden die Packungen (1) in eine Schräglage gebracht. Ist der Inhalt unvollständig wird er durch die Schräglage verrutschen, wodurch sich die Gewichtsverteilung innerhalb der Packung ändert, was gemessen wird. Zur Sicherheit kann die Packung (1) anschließend in die entgegengesetzte Schräglage gebracht und die dabei auftretende Gewichtsverteilung ebenfalls gemessen werden. Die so ermittelten Gewichtsverteilungen werden dann verglichen.To check the unfixed contents of sealed packages for completeness, the packages (1) are tilted. If the content is incomplete, it will slip due to the inclined position, which changes the weight distribution within the pack, which is measured. For safety, the pack (1) can then be placed in the opposite inclined position and the weight distribution that occurs can also be measured. The weight distributions determined in this way are then compared.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Kontrollieren des Inhaltes von verschlossenen Packungen auf Vollständigkeit, der aus mehreren über das Pakkungsvolumen verteilten Füllelementen besteht, und diese Füllelemente in der Packung nicht fixiert sind.The invention relates to a method and a device for checking the contents of closed packs for completeness, which consists of a plurality of filling elements distributed over the packing volume, and these filling elements are not fixed in the pack.

Beim Verpacken, insbesondere beim maschinellen Verpacken wird der Inhalt der Packung mit optimaler Geschwindigkeit eingelegt bzw. eingeschoben. Unmittelbar nach diesen Vorgang wird die Packung verschlossen. Bedingt durch die hohe Abpackgeschwindigkeit, insbesondere bei modernen Verpackungsstraßen, sind fehlerhafte Abläufe nicht zu vermeiden, wodurch es oft zu unvoliständigem Packungsinhalt kommt.When packing, especially when packing by machine, the contents of the pack are inserted or pushed in at the optimum speed. The package is closed immediately after this process. Due to the high packaging speed, especially with modern packaging lines, faulty processes cannot be avoided, which often leads to incomplete packaging contents.

Es ist bekannt, die Vollständigkeit der Packung durch Wiegen zu ermitteln. Diese Methode hat da ihre Grenzen, wo das Gewicht dts fehlenden Packungsinhaltes innerhalb der Gewichtsstreuung des Verpackungsmaterials und des übrigen Packungsinhaltes liegt, wie das z.B. bei kartonverpackten Glasflaschen mit Dosierlöffeln als fehlender Packungsinhalt der Fall sein kann.It is known to determine the completeness of the package by weighing. This method has its limits where the weight of the missing package content lies within the weight distribution of the packaging material and the rest of the package content, as is the case, for example, with carton-packed products Glass bottles with dosing spoons as missing package content may be the case.

Der im Anspruch 1 angegebenen Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu schaffen, mit dessen Hilfe es möglich ist, fehlende Packungsinhalte sicher zu erkennen.The invention specified in claim 1 has for its object to provide a method by means of which it is possible to reliably detect missing package contents.

Mit dem Verfahren nach der Erfindung ist es möglich, den Inhalt von verschlossenen Packungen, der aus mehreren über das Packungsvolumen verteilten Füllelementen besteht, auf Vollständigkeit zu kontrollieren. Dabei ist es grundsätzlich unerheblich, ob die einzelnen Füllelemente bezüglich Masse, Gestalt und Größe gleich oder unterschiedlich sind. Besonders vorteilhaft ist das erfindungsgemäße Verfahren zum Kontrollieren von Packungsinhalten auf Vollständigkeit, die aus mehreren über das Packungsvolumen assymetrisch verteilten Füllelementen unterschiedlicher Masse bestehen.With the method according to the invention, it is possible to check the contents of closed packs, which consist of several filling elements distributed over the pack volume, for completeness. It is basically irrelevant whether the individual filling elements are the same or different in terms of mass, shape and size. The method according to the invention for checking the contents of packs for completeness, which consist of several filling elements of different masses asymmetrically distributed over the pack volume, is particularly advantageous.

Die Erfindung wird im folgenden anhand einer schematischen Zeichnung näher erläutert. Die Figur zeigt die Meßvorrichtung in beispielsweiserAusführung.The invention is explained below with reference to a schematic drawing. The figure shows the measuring device in an exemplary embodiment.

Eine in Laufrichtung geneigte Fördereinrichtung (6), z.B. ein endlos über Antriebs- und Führungsrollen (5) umlaufendes Transportband, wird durch eine Auflage (7) unterstützt. Die Auflage (7) ist ebenfalls in Laufrichtung der Fördereinrichtung (6) geneigt und über Kraftübertragungselemente (9) auf Kraftmeßeinrichtungen (10) angeordnet. Unter Neigung in Laufrichtung soll sowohl eine aufwärts als auch eine abwärts gerichtete Neigung der Fördereinrichtung (6) bzw. der Auflage (7) verstanden werden. Die Kraftübertragungselemente (9) können zweckmäßig über reibungsfreie Führungselemente (8) mittels Halterung (11) in ihrer Position gehalten werden. Eine besondere Variante der Vorrichtung (nicht dargestellt) besteh; darin, daß die Fördereinrichtung sowohl aufwärts als auch abwärts geneigt ist und in beiden Teilabschnitten durch eine Auflage (7) unterstützt wird. Am Ende der Meßstrecke kann eine Vorrichtung (3), z.B. eine Ausblasdüse, zum selektiven Auswerfen der Packungen angeordnet sein. Auf beiden Seiten der Auflage (7) können Unterstützungselemente (4) für die Fördereinrichtung (6) angeordnet sein, um ein Durchhängen der Fördereinrichtung im Bereich der Meßstrecke zu vermeiden. Mit (1) soll die Packung angedeutet werden. Durch geeignet angebrachte Lichtschranken (2) oder ähnliches ist dafür zu sorgen, daß die Wägung immer dann vorgenommen wird, wenn die Packung jeweils eine bestimmte Lage in Bezug auf die Auflage (7) erreicht hat. Als Kraftmesseinrichtungen (10) haben sich elektronische Kraftmessdosen mit hoher Eigenfrequenz bewährt.A conveyor device (6) inclined in the running direction, for example a conveyor belt running endlessly over drive and guide rollers (5), is supported by a support (7). The support (7) is also inclined in the running direction of the conveying device (6) and is arranged on force measuring devices (10) via force transmission elements (9). Inclination in the running direction is understood to mean both an upward and a downward inclination of the conveying device (6) or the support (7). The force transmission elements (9) can expediently be held in their position via friction-free guide elements (8) by means of a holder (11). A special variant of the device (not shown) exists; in that the conveyor is inclined both upwards and downwards and is supported in both sections by a support (7). At the end of the measuring section, a pre direction (3), for example a blow-out nozzle, for selective ejection of the packs. Supporting elements (4) for the conveying device (6) can be arranged on both sides of the support (7) in order to avoid sagging of the conveying device in the region of the measuring section. The pack is to be indicated with (1). Suitable light barriers (2) or similar must be used to ensure that the weighing is always carried out when the pack has reached a certain position in relation to the support (7). Electronic load cells with a high natural frequency have proven themselves as force measuring devices (10).

Eine Packung (1), deren Inhalt z.B. aus einer Flasche (12) und einem Dosierlöffel (13) besteht, befindet sich auf einem Transportband (6), das in Laufrichtung um den Winkel α aufwärts geneigt ist. Der Inhalt (12), (13) der Packung (1) ist durch zusätzliche Hilfsmittel nicht fixiert. Fehlt z.B. der Löffel (13), ist die Flasche (12) in der Packung frei beweglich. Der Neigungswinkel α des Transportbandes wird so gewählt, daß die Flasche (12) in der Packung ihre Lage durch Rutschen oder Rollen ändern kann.A pack (1), the contents of which e.g. consists of a bottle (12) and a measuring spoon (13) is located on a conveyor belt (6) which is inclined upwards in the direction of rotation by the angle α. The contents (12), (13) of the pack (1) are not fixed by additional aids. Missing e.g. the spoon (13), the bottle (12) is freely movable in the pack. The angle of inclination α of the conveyor belt is chosen so that the bottle (12) in the pack can change its position by sliding or rolling.

In manchen Fällen kann es zweckmäßig sein, die Packung nach Passieren der Meßstreoke in die entgegengesetzte Schräglage zu bringen, auf einer zweiten Meßstrecke wiederum die Gewichtsverteilung festzustellen und anschliessend beide Gewichtsverteilungen miteinander zu vergleichen. Falls der Dosierlöffel verfahrensbedingt auf verschiedenen Seiten der Flasche liegen kann, ist ein solcner Vergleich notwendig. Das durch die Kraftmeßdosen (10) gewonnene elektrische Signal wird in üblicher Weise verarbeitet und bei Erreichen eines für die zu kontrollierenden Packungen spezifischen Grenzwertes eine Vorrichtung (3) zum selektiven Auswerfen von unvollständig gefüllten Packungen angesteuert.In some cases, it may be advisable to bring the package into the opposite inclined position after passing the measuring streoke, to determine the weight distribution on a second measuring section, and then to compare the two weight distributions with one another. If the measuring spoon can lie on different sides of the bottle due to the process, a similar comparison is necessary. The electrical signal obtained by the load cells (10) is processed in the usual way and, when a limit value specific to the packs to be checked is reached, a device (3) for selectively ejecting packs which are not completely filled is actuated.

Claims (8)

1. Verfahren zum Kontrollieren des Inhaltes von verschlossenen Packungen auf Vollständigkeit, der aus mehreren über das Packungsvolumenverteilten Füllelementen besteht, wobei die Füllelemente nicht fixiert sind, dadurch gekennzeichnet, daß die Packungen in eine Schräglage gebracht und die dabei auftretenden Gewichtsverteilungen innerhalb der Packungen gemessen werden.1. A method for checking the contents of closed packs for completeness, which consists of several filling elements distributed over the packing volume, the filling elements not being fixed, characterized in that the packs are brought into an inclined position and the resulting weight distributions are measured within the packs. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Packungen in eine Schräglage gebracht und die dabei auftretende Gewichtsverteilungen innerhalb der Packungen gemessen werden, danach die Packungen in die entgegengesetzte Schräglage gebracht, die dabei auftretenden Gewichtsverteilungen ebenfalls gemessen und die gemessenen Gewichtsverteilungen verglichen werden.2. The method according to claim 1, characterized in that the packs are brought into an inclined position and the resulting weight distributions are measured within the packs, then the packs are brought into the opposite inclined position, the resulting weight distributions are also measured and the measured weight distributions are compared. 3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Neigung der Packungen in Abhängigkeit vom Reibungsgrad zwischen Füllelemente und Packung erfolgt.3. Process according to claims 1 and 2, characterized in that the inclination of the packs takes place depending on the degree of friction between the filling elements and the pack. 4. Verfahren nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Gewichtsverteilung in den Packungen mit Kraftmessdosen, vorzugsweise elektronischen Kraftmeßdosen ermittelt wird.4. The method according to claims 1 to 3, characterized in that the weight distribution in the packs with load cells, preferably electronic load cells is determined. 5. Vorrichtung zum Durchführen des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß eine in Laufrichtung geneigte Fördereinrichtung durch eine Auflage, die auf Kraftmesseinrichtungen angeordnet ist, unterstützt wird.5. A device for performing the method according to claim 1, characterized in that a conveyor device inclined in the running direction is supported by a support which is arranged on force measuring devices. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Fördereinrichtung erst aufwärts und dann abwärts geneigt ist und auf beiden Abschnitten durch eine Auflage, die auf Kraftmesseinrichtungen angeordnet ist, unterstützt wird.6. The device according to claim 5, characterized in that the conveyor is only inclined upwards and then downwards and is supported on both sections by a support which is arranged on force measuring devices. 7. Vorrichtung nach den Ansprüchen 5 und 6, dadurch gekennzeichnet, daß die Fördereinrichtung aus einem endlos umlaufenden Transportband besteht.7. Device according to claims 5 and 6, characterized in that the conveyor consists of an endlessly rotating conveyor belt. 8. Vorrichtung nach den Ansprüchen 5 bis 7, dadurch gekennzeichnet, daß am Ende der Meßstrecke eine Vorrichtung zum selektiven Auswerfen der Packungen angeordnet ist.8. Device according to claims 5 to 7, characterized in that a device for selective ejection of the packs is arranged at the end of the measuring section.
EP79100360A 1978-02-15 1979-02-08 Method and device for inspecting unopened packages in respect of the completeness of contents Expired EP0003597B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782806281 DE2806281A1 (en) 1978-02-15 1978-02-15 PROCEDURE AND DEVICE FOR CHECKING THE CONTENTS OF SEALED PACKAGES FOR COMPLETENESS
DE2806281 1978-02-15

Publications (2)

Publication Number Publication Date
EP0003597A1 true EP0003597A1 (en) 1979-08-22
EP0003597B1 EP0003597B1 (en) 1981-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100360A Expired EP0003597B1 (en) 1978-02-15 1979-02-08 Method and device for inspecting unopened packages in respect of the completeness of contents

Country Status (5)

Country Link
US (1) US4274499A (en)
EP (1) EP0003597B1 (en)
JP (1) JPS54133995A (en)
AU (1) AU528817B2 (en)
DE (2) DE2806281A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042902A1 (en) * 1980-11-14 1982-06-16 Ferd. Schulze & Co, 6800 Mannheim ELECTROMECHANICAL SCALE
US4593515A (en) * 1985-03-18 1986-06-10 Hobart Corporation Dropped-article sensor and wrapping machine interrupt
DE4243296A1 (en) * 1992-12-21 1994-06-23 Sandoz Ag Medicine pack accompanying leaflet checking device
ATE344921T1 (en) * 2000-09-12 2006-11-15 Marel Hf METHOD AND APPARATUS FOR WEIGHING
WO2003009237A1 (en) * 2001-07-18 2003-01-30 Skaginn Hf. A method and apparatus for relating information of a processed object to an operator
DE102009060291B4 (en) † 2009-12-23 2021-02-11 Bizerba SE & Co. KG Weighing device
DE102013102815C5 (en) * 2013-03-18 2019-10-17 Jörn Strauß Weighing device for sorting machines for food and measuring method for a weighing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729810A (en) * 1953-10-26 1956-01-03 Lilly Co Eli Literature detection device for cartoning machine
US2987178A (en) * 1956-10-25 1961-06-06 Miller Brewing Art of checking filled containers
US3182737A (en) * 1963-11-13 1965-05-11 Sperry Rand Corp Gravity slide checkweigher
US3415369A (en) * 1966-11-25 1968-12-10 Merrell Inc Richard Short fill detector and rejector
US3613808A (en) * 1968-12-18 1971-10-19 Fmc Corp Article-sorting apparatus with transfer-error-reducing arrangement
DE2319895A1 (en) * 1973-04-19 1974-10-31 Berkel Gmbh CHECKWEIGHER FOR PIECES OF GOODS WITH A DRIVEN CONVEYOR TRACK

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576468A (en) * 1950-07-18 1951-11-27 Gen Motors Corp Weighing scale for determining mass distributions
US2868535A (en) * 1955-12-21 1959-01-13 Baldwin Lima Hamilton Corp Motion load weighing system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729810A (en) * 1953-10-26 1956-01-03 Lilly Co Eli Literature detection device for cartoning machine
US2987178A (en) * 1956-10-25 1961-06-06 Miller Brewing Art of checking filled containers
US3182737A (en) * 1963-11-13 1965-05-11 Sperry Rand Corp Gravity slide checkweigher
US3415369A (en) * 1966-11-25 1968-12-10 Merrell Inc Richard Short fill detector and rejector
US3613808A (en) * 1968-12-18 1971-10-19 Fmc Corp Article-sorting apparatus with transfer-error-reducing arrangement
DE2319895A1 (en) * 1973-04-19 1974-10-31 Berkel Gmbh CHECKWEIGHER FOR PIECES OF GOODS WITH A DRIVEN CONVEYOR TRACK

Also Published As

Publication number Publication date
AU528817B2 (en) 1983-05-12
AU4424479A (en) 1979-08-23
US4274499A (en) 1981-06-23
EP0003597B1 (en) 1981-07-22
JPS54133995A (en) 1979-10-18
DE2960502D1 (en) 1981-10-29
DE2806281A1 (en) 1979-08-23

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