EP0282728B1 - Verfahren und Vorrichtung zum Prüfen von Packungen - Google Patents

Verfahren und Vorrichtung zum Prüfen von Packungen Download PDF

Info

Publication number
EP0282728B1
EP0282728B1 EP88101922A EP88101922A EP0282728B1 EP 0282728 B1 EP0282728 B1 EP 0282728B1 EP 88101922 A EP88101922 A EP 88101922A EP 88101922 A EP88101922 A EP 88101922A EP 0282728 B1 EP0282728 B1 EP 0282728B1
Authority
EP
European Patent Office
Prior art keywords
feelers
packs
articles
feeler
pack
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
EP88101922A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0282728A3 (en
EP0282728A2 (de
Inventor
Heinz Focke
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co 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 Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0282728A2 publication Critical patent/EP0282728A2/de
Publication of EP0282728A3 publication Critical patent/EP0282728A3/de
Application granted granted Critical
Publication of EP0282728B1 publication Critical patent/EP0282728B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a method for checking packs with a plurality of objects, in particular cookies, the objects being arranged in ordered groups or stacks and surrounded by a deformable covering. Furthermore, the invention relates to a device for checking the objects or groups thereof according to the preamble of claim 4.
  • One problem with the packaging of objects is that the manufacturer must ensure that the contents of the package are correct. If the contents of the package consist, for example, of a certain number of individual items of the same type as biscuits, neither one should be missing nor one too many. Furthermore, none of the cookies may be broken be and have jammed when packing.
  • the object on which the invention is based is now to carry out the checking of the contents of packs quickly, precisely and with little effort.
  • the inspection of the objects or groups of them therefore takes place within the package, which consists of a sheath that can be deformed at least in the partial areas that are important for the inspection.
  • a test organ namely a button assigned to each group, penetrates deeper into the package if there are missing objects within a group, with a correspondingly greater deformation of the wrapping.
  • the test organ that is to say the pushbutton, can also experience a shift in another direction.
  • buttons The relative position of the buttons is monitored during the inspection of a package, especially by opto-electrical organs. Deviations of the button from a middle or normal position trigger an error signal, which leads to the package being discarded.
  • the packs are checked according to a further feature of the invention during the transport thereof.
  • the test devices namely mechanical buttons, are conveyed synchronously with the pack to be tested.
  • pushbuttons are expediently assigned to one stack on each side of the pack.
  • the test takes place in the area of a limited test section of a conveyor for the packs.
  • the device according to the invention is characterized in that the mechanical buttons are arranged on a conveyor for the packs or stacks themselves, in such a way that the mechanical buttons can be conveyed synchronously with the respective pack to be checked. In this way, a check is possible in particular during the continuous conveying of packs.
  • buttons can be arranged on side toothed belts.
  • the buttons or a housing (guide) are expediently firmly connected to the associated toothed belt, in particular molded onto this as a one-piece workpiece.
  • the toothed belts are therefore manufactured with groups of buttons or housings (guides) arranged at a distance for these buttons.
  • any incorrect packs found are removed in the area of the conveyor line, in particular by a downward-pointing discharge chute arranged in the area of the conveyor for the packs. This is at least partially covered during the transport of intact packages. When an incorrect pack is identified, the discharge chute is released so that the conveyed incorrect pack automatically gets into the discharge chute.
  • the device described below is used to check the contents of packs 10, which each contain three stacks 11, 12, 13 of (round) cookies (14) in the example shown here.
  • These soft packs have a cover 15 made of cellophane film, which is provided on one (end) side by welding with a grip tab 16.
  • the packs 10 are pushed over a slideway 18 by band-shaped driver cross members 17.
  • the driver cross members 17 are fastened to toothed belts 19, 20 which run on both sides of the slideway 18.
  • Pushbuttons 21 are fastened to the toothed belt 19, 20, specifically a pushbutton 21 for each end face of a stack 11, 12 or 13.
  • the pushbuttons 21 have a feeler piston 22 which is connected to a driver 24 via a plunger 23.
  • the feeler piston 22 is seated in a guide 25 which is integrally formed on the toothed belt 19, 20.
  • the guide 25 is provided at its end facing away from the feeler piston 22 with a bore through which the plunger 23 passes.
  • a compression spring 26 is inserted, which acts on the feeler piston 22 in the direction of the pack 10.
  • buttons 21 are designed in a special way or connected to the toothed belts 19, 20.
  • the cylindrical housing referred to as the guide 25 Buttons for receiving the feeler piston 22 and the plunger 23 are integrally formed on the toothed belts 19, 20 or formed with them as a common, one-piece workpiece.
  • the buttons or their guides 25 are manufactured with the toothed belt 19, 20.
  • the driver 24 of the button 21 is disc-shaped and has conical end faces 27, 28 which are connected to one another via a cylindrical section 29.
  • rails 30, 31 are provided on both sides, the lower edge 31 of which is shaped on the outside corresponding to the inner end face 27 of the driver 24.
  • the arrangement of the rails 30, 31 is such that the driver 24 rests with its inner end face 27 on the chamfered lower edge 32 of the rails 30, 31 and can slide along it when the toothed belts 19, 20 move in the direction of the arrow.
  • the rails 30, 31 are fastened parallel to the toothed belts 19, 20 over the entire conveying path except for a short section. Before this short section, the rails 30, 31 converge in the direction of the toothed belts 19, 20 and end shortly before this section. After the section, the rails 30, 31 diverge again.
  • a reflection light barrier 33, 34 is attached on each side.
  • the light barriers 33, 34 are directed perpendicularly to the conveying plane onto the path of movement of the drivers 24 in such a way that, in the case of an intact stack, the cylindrical section 29 of the drivers 24 is directly below the associated light barrier 33 and 34 drives along.
  • the drivers 24 initially lie with their inner end faces 27 on the lower edges 32 of the rails 30, so that the pistons 22 of the Pack 10 withdrawn and the springs 26 are compressed.
  • the pistons 22 move to the end faces of the packs 10 by the force of the springs 26. If the pack contents, the stacks, have the prescribed height, As shown in FIG.
  • the cylindrical section 29 of the drivers 24 runs exactly under the reflection light barriers 33 and 34, so that they emit a maximum reflection signal.
  • the light emitted by the reflection light barriers 33, 34 does not reach the cylindrical section 29 but the conical section 29, and thus does not reflected back to the light barrier 33, 34.
  • the light does not reach the cylindrical section 29, but rather the outer end face 28, and is likewise not reflected. In this way, an exact differentiation of the positions and thus an exact determination of faulty package contents is possible.
  • the conical shape of the end faces 27, 28 with the cylindrical section lying between them is also very important. Because of these differences in shape, a particularly large difference between the correct and an error-indicating position of the driver 24 or the feeler piston 22 is possible. Only when the probe piston 22 is pressed so far out that the light of the reflection light barrier 33 or 34 falls on the cylindrical connecting piece between driver 24 and plunger 23, larger interference signals can occur. The working range of the arrangement can thus be determined by the inclination of the end faces 27, 28.
  • the light barriers 23, 24 are connected to an evaluation logic (not shown here), via which it is determined whether a package is to be classified as defective or not. If a package 10 is classified as defective, it must be discarded.
  • a cut-out 35 in the slideway 18 is provided to sort out defective packs shortly after the area in which the buttons 21 scan the packs 10.
  • the cutout 35 extends over the entire width of the slideway 18 and over a length which is somewhat greater than the width of a pack 10.
  • the cutout 35 can be partially covered by two cover swords 36, 37, the surfaces of the cover swords 36, 37 in close substantially flush with the surface of the slideway 18.
  • the cover swords 36, 37 are fastened to guide rods 38, 39, which form piston rods of pneumatic cylinders or the like, not shown.
  • the cover swords 36, 37 can be pulled out via these pneumatic cylinders to such an extent that the cutout 35 is fully open, or can be inserted into the cutout 35 to such an extent that a pack 10 conveyed on the cover swords 36, 37 can slide across the cutout 35.
  • the discharge chute 40 is arranged below the cutout 35.
  • the discharge chute 40 has a front wall 41 and a rear wall 42, which run parallel to one another and are inclined in the conveying direction.
  • An ejection stamp 43 is arranged above the cutout 35, the stamp plate 44 has a surface parallel to the slideway 18 and is connected to a plunger 45, which is mounted inclined to the stamp plate 44. This inclination corresponds to the inclination of the chute 40.
  • the plunger 45 is connected to a pneumatic cylinder (or the like), not shown, for actuation.
  • the cover swords 36, 37 are withdrawn via the control (not shown), and when the defective package 10 arrives, the ejection stamp 43 is lowered so that the defective package 10 follows below, is fed into the chute 40.
  • the special arrangement of the ejection punch 43 or the ejection chute 40 with respect to the ejection direction ensures that the packs 10 to be ejected do no or only an insignificant relative movement to the die plate 44 and can thus be ejected particularly well and without errors.
  • the control device which receives the signals from the light barriers 33, 34 and then controls the actuating means for the cover swords 36, 37 and the ejection ram 43, is synchronized with the drive for the toothed belts 19, 20, so that a time-accurate ejection is possible.
  • the rails 30, 31 are brought together again, so that the springs 26 can push the feeler pistons 22 inwards again and, during the advance of the pushbuttons 21, their drivers 24 can run unloaded. Accordingly, the drivers 24 on the second deflection roller, not shown here correspondingly diverging sections of the rails 30, 31 are brought up and then pull the pistons 22 back into the guides 25 so that the packs 10 can be placed freely.
  • the slideway 18 is simultaneously provided with belt guides 48 for the toothed belt 49 on its outer portion. Furthermore, the slideway 18 has at its edges guide strips 49 for guiding the packs 10, so that they cannot tilt or reach the retracted stylus 22. In addition, the guide strips 49 ensure that the packs 10 assume a defined position relative to these buttons during the test process by the buttons 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Sorting Of Articles (AREA)
EP88101922A 1987-03-20 1988-02-10 Verfahren und Vorrichtung zum Prüfen von Packungen Expired - Lifetime EP0282728B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3709289 1987-03-20
DE19873709289 DE3709289A1 (de) 1987-03-20 1987-03-20 Verfahren und vorrichtung zum pruefen von packungen

Publications (3)

Publication Number Publication Date
EP0282728A2 EP0282728A2 (de) 1988-09-21
EP0282728A3 EP0282728A3 (en) 1989-05-10
EP0282728B1 true EP0282728B1 (de) 1993-05-26

Family

ID=6323654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101922A Expired - Lifetime EP0282728B1 (de) 1987-03-20 1988-02-10 Verfahren und Vorrichtung zum Prüfen von Packungen

Country Status (6)

Country Link
US (1) US4916883A (ja)
EP (1) EP0282728B1 (ja)
JP (1) JP2583560B2 (ja)
BR (1) BR8801257A (ja)
CA (1) CA1290420C (ja)
DE (2) DE3709289A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040353A (en) * 1990-07-26 1991-08-20 Glaxo Inc. System for inspecting and recycling goods from defective packages on a blister packaging machine
US5442892A (en) * 1994-01-14 1995-08-22 Glaxo Inc. System for facilitate recycling goods from defective packages on a blister packaging machine
JP2966272B2 (ja) * 1994-02-01 1999-10-25 ジューキ株式会社 被封入物の過剰欠落検査方法及びそれに用いられる検査装置
US5533315A (en) * 1995-09-01 1996-07-09 Blueprint Automation, Inc. Closure checking apparatus for bagged goods
DE10050297A1 (de) * 2000-10-10 2002-04-11 Focke & Co Verfahren und Vorrichtung zum Prüfen von insbesondere Zigarettenpackungen
US20060249436A1 (en) * 2005-05-04 2006-11-09 Hardman James L Jr Pallet defect inspection systems and methods
GB0708337D0 (en) * 2007-05-01 2007-06-06 Ethiprint Ltd Packaging testing apparatus
JP5448122B2 (ja) * 2010-09-14 2014-03-19 日本たばこ産業株式会社 シガレット検査装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457657C (de) * 1928-03-21 Eichhorn Friedrich Prof Dr Sicherung gegen Steuerlosigkeit von Kraftwagen bei Vorderfederbruch
DE229367C (ja) *
US2367684A (en) * 1941-08-07 1945-01-23 Redington Co F B Packaging machine and method of packaging
DE1104421B (de) * 1958-07-01 1961-04-06 Alfred Schmermund Pruefungsvorrichtung fuer Verpackungs-maschinen
US3237764A (en) * 1961-07-12 1966-03-01 Hauni Werke Koerber & Co Kg Method and apparatus for testing rod shaped articles
DE1208679B (de) * 1963-05-09 1966-01-05 Otto Haensel Ges Mit Beschraen Verpackungsanlage zum Bilden von Sammelpackungen aus einzelnen einzuwickelnden Schokoladetafeln oder -riegeln
DE1275947B (de) * 1963-07-08 1968-08-22 Baker Perkins Ltd Vorrichtung zum Nachstellen paralleler Fuehrungen fuer das Einordnen von Keksreihen od. dgl.
US3346112A (en) * 1966-04-19 1967-10-10 Hormel & Co Geo A Process and apparatus for inspecting containers
IT997301B (it) * 1973-09-26 1975-12-30 Amf Sasib Dispositivo per il controllo del graco di riempiemento delle teste delle sigarette
US4053056A (en) * 1976-07-19 1977-10-11 Amf Incorporated Cigarette package inspection apparatus
JPS6015536B2 (ja) * 1977-11-25 1985-04-19 ロ−レルバンクマシン株式会社 硬貨包装機の硬貨不揃検知装置
FR2451860A1 (fr) * 1979-03-21 1980-10-17 Molins Ltd Dispositif pour detecter des groupes d'objets, tels que des cigarettes, notamment sur des machines d'empaquetage
FR2494217A1 (fr) * 1980-11-19 1982-05-21 Cousin Pierre Dispositif de controle de conformite de piles d'objets empiles dans une machine de conditionnement
US4434529A (en) * 1981-10-13 1984-03-06 Oscar Mayer Foods Corporation Sausage diameter monitoring apparatus and method
US4510730A (en) * 1981-12-18 1985-04-16 Hulbritt Developments Limited Apparatus for seal-testing sachets, packets and the like
CH657587A5 (de) * 1982-09-16 1986-09-15 Sig Schweiz Industrieges Verfahren und anlage zur herstellung von packungen.
DE3240254C2 (de) * 1982-10-30 1986-02-06 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg Einrichtung zur Überprüfung der vollständigen Füllung eines Behälters mit Zigarettenpackungen
IT1171139B (it) * 1983-04-22 1987-06-10 Sasib Spa Dispositivo a spine tastatrici per il controllo qualitativo e o quantitativo e o per la pareggiatura di sigarette o simili
DD229367A1 (de) * 1984-12-03 1985-11-06 Verpackungsmaschinenbau Veb Vorrichtung zum absondern unvollstaendiger stapel von dauerbackwaren
DE3528248A1 (de) * 1985-08-07 1987-02-19 Jagenberg Ag Verfahren und vorrichtung zum kontrollieren der dichtheit von gefuellten, durch einen angesiegelten bzw. aufgeschweissten deckel od. dgl. verschlossenen behaelter
CH663939A5 (fr) * 1985-09-24 1988-01-29 F J Burrus S A Dispositif de controle de cigarettes groupees en vue de leur empaquetage et appareil a empaqueter les cigarettes equipe de ce dispositif de controle.

Also Published As

Publication number Publication date
JPS63248627A (ja) 1988-10-14
DE3881240D1 (de) 1993-07-01
DE3709289A1 (de) 1988-09-29
CA1290420C (en) 1991-10-08
EP0282728A3 (en) 1989-05-10
JP2583560B2 (ja) 1997-02-19
US4916883A (en) 1990-04-17
EP0282728A2 (de) 1988-09-21
BR8801257A (pt) 1988-10-25

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