DK169901B1

DK169901B1 - Apparatus for continuous weighing of items on a conveyor belt, e.g. poultry

Info

Publication number: DK169901B1
Application number: DK2693A
Authority: DK
Inventors: Frank Laursen
Original assignee: Timec A S
Priority date: 1993-01-15
Filing date: 1993-01-15
Publication date: 1995-03-27
Also published as: AU5857494A; WO1994015726A1; DK2693A

Description

i DK 169901 B1in DK 169901 B1

Den foreliggende opfindelse angår et apparat til kontinuerlig vejning og af den i indled-: ningen til krav 1 angivne art.The present invention relates to an apparatus for continuous weighing and of the kind specified in the preamble of claim 1.

Eksempelvis i forbindelse med slagtning og partering af fjerkræ, f.eks. kyllinger, trans-5 porteres kyllingerne mellem respektive behandlingsstationer ved hjælp af hænge-conveyors med ophængningsbøjler, hvori kyllingerne normalt er ophængt i benene.For example, in connection with the slaughter and mating of poultry, e.g. chickens, the chickens are transported between respective treatment stations by hanging conveyors with hanging hangers, in which the chickens are usually suspended in the legs.

Med henblik på at vægtsortere kyllingerne enten for at danne større grupper af kyllinger med ensartet vægt eller for at danne ensartede portioner af kyllinger eller af dele af kyl-10 linger er det i forbindelse med hænge-conveyor kendt at særlige ophængningsbørjler for kyllingerne eller nævnte kyllingedele på en delstrækning af en særlig hængeconveyor -oftest i forbindelse med et vendehjul - løftes fri af hænge-conveyoren og midlertidig understøttes på bæreindretninger, der derefter efter tur kortvarigt påvirker en fælles vejeindretning, f.eks. en elektronisk vejecelle. Kendte vejeapparater af denne type har en 15 kompliceret opbygning og en begrænset kapacitet; ligesom de har vist sig at være mindre præcise.In order to weight the chickens either to form larger batches of chickens of uniform weight or to form uniform portions of chickens or of portions of chickens, it is known in connection with the hang conveyor that special hanging bars for the chickens or said chicken parts on a section of a special suspension conveyor - test in connection with a turning wheel - is lifted free of the suspension conveyor and temporarily supported on carriers, which in turn briefly affect a common weighing device, e.g. an electronic weighing cell. Known weighers of this type have a complicated structure and a limited capacity; just as they have proven to be less accurate.

Det er formålet med opfindelsen at angive et apparat af den angivne art til mere generel kontinuerlig vejning, og som ved enkle foranstaltninger gør det muligt at opnå en for-20 Øget kapacitet samt en forbedret præcision.SUMMARY OF THE INVENTION It is an object of the invention to provide an apparatus of the kind specified for more general continuous weighing, which, by simple measures, allows for increased capacity and improved precision.

Apparatet ifølge opfindelsen er kendetegnet ved, at hver af nævnte løfteindretninger omfatter en elektronisk vejecelle, der på egnet måde er forbundet med tilhørende veje- og registreringsudstyr. Ved hjælp af enkle foranstaltninger opnås herved et vejeapparat, der 25 kan arbejde med betydelig større gennemløbshastighed, dvs har forøget kapacitet, og som samtidig udviser forbedret præcision. Den forøgede kapacitet opnås ganske enkelt ved, at flere løfteindretninger med hver sin vejecelle kan være aktiveret samtidigt. Det forhold, at vejeindgreb opretholdes i temmelig lang tid, medfører samtidigt en forbedret gennemsnitlig vejenøjagtighed.The apparatus according to the invention is characterized in that each of said lifting devices comprises an electronic weighing cell which is suitably connected to associated weighing and recording equipment. By means of simple measures, a weighing apparatus is thus obtained which can operate at a significantly greater throughput speed, ie has increased capacity, and which at the same time exhibits improved precision. The increased capacity is simply achieved by the fact that several lifting devices with each different weighing cell can be activated simultaneously. At the same time, the fact that road interventions are maintained for a fairly long time results in improved average road accuracy.

30 DK 169901 B1 230 DK 169901 B1 2

Fortrinsvis er apparatet ifølge opfindelsen udformet således, at nævnte delstrækning har en sådan længde, at mellem 6-12 løfteindretninger samtidigt kan være aktiveret, og at * en styreskinne for løfteindretninger strækker sig fra 180° til 225° langs vendehjulets omkreds.Preferably, the apparatus according to the invention is designed such that said section stretches such that between 6-12 lifting devices can be simultaneously activated and that a lifting guide rail extends from 180 ° to 225 ° along the circumference of the turning wheel.

55

Opfindelsen forklares i det følgende nærmere i forbindelse med tegningen, på hvilken:-The invention will now be explained in more detail in connection with the drawing, in which: -

Fig. 1 viser en skitse af endeløs hænge-conveyor med et vendehjul med et vejeapparat ifølge opfindelsen, medens 10 fig. 2 viser en udførelsesform for et vejeapparat ifølge opfindelsen, eksempelvis jfr. linien Π-Π i fig. 1.FIG. 1 shows a sketch of endless hanging conveyor with a turning wheel with a weighing apparatus according to the invention, while FIG. 2 shows an embodiment of a weighing apparatus according to the invention, cf. the line Π-Π in fig. First

Det viste vejeapparat 2 er opbygget i forbindelse med et vendehjul 4 af en endeløs 15 hænge-conveyor 6, der er forsynet med specielle, to-delte ophængningsbøjler eller -gafler 8, der har en øvre øjedel 10 og en nedre gaffeldel 12 med en vandret bæredel 14.The weighing apparatus 2 shown is constructed in conjunction with a turning wheel 4 of an endless 15 suspension conveyor 6 provided with special two-part suspension brackets or forks 8 having an upper eye portion 10 and a lower fork portion 12 with a horizontal carrier part 14.

Under vendehjulet 4 er på samme aksel 16 monteret et antal løfteindretninger 18 med ydre krogdele 20, der i forhold til en basisdel 22 af løfteindretningeme 18 er understøttet 20 af hver sin elektroniske vejecelle 24. Basisdelene 22 er forskydelige på lodrette glide-stænger 26, der strækker sig mellem periferien af vandrette bæreskiver 28. Modsat veje-celleme 24 er basisdelene 22 forsynet med et styrehjul 30, der samvirker med en buet, stationær styreskinne 32 på en sådan måde, at løfteindretningeme 18, idet bæreskiveme 28 roteres synkront med vendehjulet 4, forskydes opad på glidestængeme 26, når 25 styrehjulet 30 føres opad ved anlæg med oversiden af styreskinnen 32, og forskydes nedad, når styrehjulet 30 igen tillades at føres nedad - ved ophør af styreskinnen 32.Under the turning wheel 4 are mounted on the same shaft 16 a plurality of lifting devices 18 with outer hook portions 20 supported relative to a base part 22 of the lifting devices 18 by each of their electronic weighing cell 24. The base parts 22 are slidable on vertical sliding rods 26 which extending between the periphery of horizontal supporting discs 28. Opposite the weighing cells 24, the base parts 22 are provided with a guide wheel 30 which cooperates with a curved stationary guide rail 32 in such a way that the lifting devices 18, the supporting discs 28 being rotated synchronously with the turning wheel 4, is displaced upwardly on the sliding rods 26 when the guide wheel 30 is moved upwards by abutment with the upper side of the guide rail 32, and is shifted downwards when the guide wheel 30 is again allowed to move downwards - at the end of the guide rail 32.

Løfteindretningeme 18 er fordelt langs vendehjulet 4 med samme indbyrdes vinkel-afstand som hænge-conveyorens ophængningsgafler 8 således, at de ydre krogdele 20 af 30 løfteindretningeme indgriber mellem de nedre gaffeldele 12 af de respektive ophængningsgafler 8 - og under de vandrette bæredele 14.The lifting devices 18 are distributed along the turning wheel 4 at the same angular distance as the suspension forks of the suspension conveyor 8, such that the outer hook portions 20 of the lifting devices engage between the lower fork parts 12 of the respective suspension forks 8 - and under the horizontal support parts 14.

DK 169901 B1 3 I venstre side af fig. 2 er vist, hvordan vejeindgreb etableres ved, at de nedre gaffeldele 12 er løftet fri af øjedelen 10, når krogdelen 20 sammen med løfteindretningen 18 forskydes opad ved påvirkning via styrehjul 30 og styreskinne 32. Dvs. at aktivt vejeindgreb er etableret mellem gaffeldelen 12 og den elektroniske vejecelle 24, så længe 5 det tilhørende styrehjul 30 ruller langs oversiden af styreskinnen 32.DK 169901 B1 3 On the left side of fig. 2 is shown how road engagement is established in that the lower fork parts 12 are lifted free of the eye part 10 when the hook part 20 together with the lifting device 18 is displaced upwards by actuation via guide wheel 30 and guide rail 32. that active weighing engagement is established between the fork part 12 and the electronic weighing cell 24, as long as the associated steering wheel 30 rolls along the upper side of the guide rail 32.

I højre side af fig. 2 er vist, hvordan vejeindgrebet mellem krogdelen 20 og gaffeldelen 12 ophører, når det tilhørende styrehjul 30 tillades at føres nedad, når styreskinnen 32 ophører.In the right-hand side of FIG. 2, it is shown how the road engagement between the hook portion 20 and the fork portion 12 ceases when the associated steering wheel 30 is allowed to be driven downward when the guide rail 32 ceases.

1010

Claims

4 DK 169901 B1 #

A continuous weighing apparatus and preferably constructed in connection with a turning wheel for an endless conveyor path provided with suspension brackets or forks for chickens or chicken parts, or comprising weighing containers, the apparatus comprising a plurality of lifting devices arranged longitudinally. preferably a portion extending about the turning wheel to lift free and support suspension brackets, forks or weighing containers and chickens, chicken parts or weighing objects suspended therein, and adapted to cooperate with an electronic weighing cell, characterized in that each of said lifting devices comprises an electronic weighing cell which are suitably connected to associated weighing and recording equipment. 10

Apparatus according to claim 1, characterized in that said sub-stretch is of such length that between 6-12 lifting devices can be simultaneously activated and that a guide rail for lifting devices extends from 180 ° to 225 ° along the circumference of the turning wheel. 15 t