DK148650B

DK148650B - Method and apparatus for sealing packaging bags for slaughtered poultry

Info

Publication number: DK148650B
Application number: DK565581AA
Authority: DK
Inventors: Erik Hansen; Heinrich Wilhelm Lambach
Original assignee: Schur Int As Brdr
Priority date: 1980-04-29
Filing date: 1981-12-21
Publication date: 1985-08-26
Also published as: DK148650C; DK565581A

Description

148650148650

Den foreliggende opfindelse angår en fremgangsmåde af den i indledningen til krav 1 angivne art til lukning af salgsposer med slagtekyllinger eller andet fjerkræ.The present invention relates to a method of the kind set forth in the preamble of claim 1 for closing sales bags with broiler or other poultry.

For frembringelsen af sådanne pakninger er det en betingelse, at kyllingerne skal sammentrykkes inden den endelige lukning af posen, nemlig ved at kyllingens benender tvinges fremad imod hovedenden af kyllingen for nedbringelse af kyllingens længde og fremkaldelse af en bøjning af kyllingens lår, hvorved pakningen tildannes på kompakt og alligevel passende fyldig måde.For the production of such packages, it is a condition that the chicks must be compressed before the final closure of the bag, namely by forcing the chicken legs towards the head end of the chicken to reduce the length of the chicken and causing a bend of the chicken's thighs to form the compact yet appropriately full-bodied way.

Den nævnte fremtrykningsoperation bør udføres umiddelbart inden lukningen af posen, således at den endelige form af kyllingen kan fikseres ved selve lukningen af posen, og øvede pakkere kan udføre den ønskede fremskydning på let og hurtig måde i direkte forbindelse med en manuel lukning af poserne. Det har imidlertid vist sig meget vanskeligt at udføre tilsvarende operationer ad automatisk vej uden at beskadige kyllingerne.Said pressing operation should be performed immediately before closing the bag so that the final form of the chicken can be fixed by the closing of the bag itself, and trained packers can perform the desired advance easily and quickly in direct connection with a manual closing of the bags. However, it has proved very difficult to perform similar operations automatically, without damaging the chickens.

Poserne skal passe ganske tæt omkring kyllingerne, og benenderne skal presses fremad allerede når kyllingen føres ind i posen med hovedenden forrest. Som omhandlet f.eks. i det britiske patentskrift nr. 1525559 er der allerede udviklet fremgangsmåder til automatisk indfyld-ning af kyllingerne i poserne, men det har ikke hidtil været muligt at udvikle en tilfredsstillende poselukningsmetode til praktisk brug i direkte tilslutning til kyllingens indførelse i posen. Dette opnås imidlertid ved i en fremgangsmåde af den i indledningen angivne art at gå frem som .angivet i den kendetegnende del af krav 1.The bags must fit quite tightly around the chickens and the legs should be pushed forward already when the chicken is brought into the bag with the head end in front. As contemplated e.g. British Patent No. 1525559 has already developed methods for automatically filling the chickens in the bags, but it has not hitherto been possible to develop a satisfactory bag closure method for practical use in direct connection with the introduction of the chicken into the bag. However, this is accomplished by proceeding in a method of the kind specified in the preamble as set forth in the characterizing portion of claim 1.

Opfindelsen angår endvidere et apparat til udøvelse af fremgangsmåden og af den i krav 2's indledning angivne art ved hvis hjælp de nævnte poser kan lukkes på enkel og fordelagtig måde, efter at kyllingerne er placeret i poserne, og dette apparat er ejendommeligt ved de i den kendetegnende del af kravet angivne træk.The invention further relates to an apparatus for carrying out the method and of the nature specified in the preamble of claim 2, by means of which said bags can be closed in a simple and advantageous manner after the chickens are placed in the bags, and this apparatus is characterized by the part of the claim specified features.

2 1686502 168650

Opfindelsens grundprincip er, at den åbne formstofpose med kyllingen indført deri placeres i en holder med kyllingens benende og den åbne endedel af pose anbragt eller indsamlet i en forholdsvis snæver rørdel af holderen, hvorefter et stempel indføres i denne del for presning af kyllingen på den ønskede måde; derefter erstattes stemplet med eller omdannes til et vacuumrør, som suger posemundingsdelen lige udad fra posen, og denne mundingsdel fastklemmes i eller til et omgivende, roterbart snoningsorgan, som endog kan udgøres af en klemmeindretning på selve vacuumrøret, idet denne indretning roteres, så den derved fremkalder en snoning af posemundingsdelen lige udenfor gumpenden af den sammenpressede kylling. Derefter fikseres den snoede og indsnævrede posedel f.eks. ved hjælp af klæbestrimmel.The basic principle of the invention is that the open plastic bag with the chicken inserted therein is placed in a holder with the chicken's leg end and the open end portion of the bag placed or collected in a relatively narrow pipe portion of the holder, after which a piston is inserted into this part for pressing the chicken onto the desired manner; then the plunger is replaced or converted into a vacuum tube which sucks the bag mouth portion straight out of the bag and this mouth portion is clamped in or to a surrounding rotatable twisting member which may even be a clamping device on the vacuum tube itself, rotating this device thereby induces a twist of the bag mouth portion just outside the rubber end of the compressed chicken. Then the twisted and narrowed bag part is fixed e.g. using adhesive tape.

Forskellige detailler i et apparat ifølge opfindelsen kan udføres på en sådan måde, at et givet apparat kan behandle kyllinger af forskellige størrelser på den ønskede og skånsomme måde og med høj kapacitet.Various details of an apparatus according to the invention can be carried out in such a way that a given apparatus can treat chickens of different sizes in the desired and gentle and high capacity manner.

Opfindelsen forklares i det følgende nærmere under henvisning til tegningen, på hvilken fig. 1 er et perspektivbillede, som illustrerer hovedtrinene i fremgangsmåden ifølge opfindelsen, fig. 2 et perspektivisk billede af den nedre ende af et herved benyttet stempel, fig. 3 et skematisk sidebillede, som illustrerer de forskellige fremgangsmådetrin mere detailleret, fig. 4 et perspektivbillede af en foretrukken poseholder, fig. 5 et ovenbillede af den lukkede poseholder, fig. 6 et sidesnitbillede af poseholderen vist i en åben modtagestilling, 3 U8650 fig. 7 et snitbillede af poseholderen og dennes tilhørende stempelsystem, og fig. 8 et sidebillede af stempelsystemet ifølge en foretruk-ken udførelse for opfindelsen.The invention will now be explained in more detail with reference to the drawing, in which: FIG. 1 is a perspective view illustrating the main steps of the method of the invention; FIG. 2 is a perspective view of the lower end of a piston used herein; FIG. Figure 3 is a schematic side view illustrating the various process steps in more detail; 4 is a perspective view of a preferred bag holder; FIG. 5 is a top view of the closed bag holder; FIG. 6 is a side sectional view of the bag holder shown in an open receiving position; FIG. 7 is a sectional view of the bag holder and its associated piston system; and FIG. 8 is a side view of the piston system according to a preferred embodiment of the invention.

I fig. 1 er vist en poseholder 2 i forskellige stillinger under en arbejdscyklus af et apparat ifølge opfindelsen, idet der startes fra øverste højre hjørne af figuren (stilling A). Poseholderen omfatter en lodret bagplade 4, der foroven er forsynet med et par fremadragende kæber 6, der · er giideligt fastholdt i vandrette glidespor 8 i pladen 4 og er udformet med halvcirkulære udsparinger 10, som er således beliggende overfor hinanden, at de danner et lodret cylinderrum 12, når kæberne 6 bevæges sammen, ligesom kæberne 6 også er tilbagebevægelige fra hinanden som vist i stilling A i fig. 1. Nedenunder kæberne 6 er forsiden af bagpladen 4 dækket eller dækkelig af en halvcylindrisk pladeklap 14, der er forsynet med en bundplade 16 og ved 18 er hængslet til de nedre ender af de modstående sidekanter af bagpladen 4, således at klappen 14 er svingbar imellem de forskellige stillinger vist i fig. 1.In FIG. 1, a bag holder 2 is shown in various positions during a work cycle of an apparatus according to the invention, starting from the upper right corner of the figure (position A). The bag holder comprises a vertical backplate 4, which is provided at the top with a pair of projecting jaws 6, which are firmly secured in horizontal sliding grooves 8 in the plate 4 and are formed with semi-circular recesses 10 which are so opposite to each other that they form a vertical cylinder compartment 12 when the jaws 6 are moved together, just as the jaws 6 are also reciprocally movable from each other as shown in position A of FIG. 1. Below the jaws 6, the front of the backplate 4 is covered or covered by a semi-cylindrical plate flap 14 provided with a bottom plate 16 and at 18 is hinged to the lower ends of the opposite side edges of the backplate 4 so that the flap 14 is pivotable between the various positions shown in FIG. First

Ovenover poseholderen 2 er anbragt et teleskopisk rørsystem omfattende et øvre stationært rør 20 og et nedre rør 22, som både er aksialt forskydelig og roterbart i forhold til røret 20 og ligger i forlængelse af det af de modstående kæber 6 dannede cylinderrum 12. Røret 22 er forsynet med en betjeningstap 24, der strækker sig radialt gennem en lodret slidse 26. Som vist i fig. 2 er tappen 24 monteret på en indvendig plade 28, som dækker slidsen 26 og er styreforbundet med en forholdsvis kraftig irismekanisme 30 ved den nedre ende af røret 22 på en sådan måde, at irisen er lukket, når tappen befinder sig nær den øvre ende af slidsen 26 og åbnes, når tappen tvinges nedad imod den nedre slidsende. Dette arrangement er kun vist skematisk, men det vil forstås, at der vil findes mange 148650 4 kendte mekanismer, som kan udføre en styret lukning og åbning af Kerende på en sådan måde, at rørenden optræder enten som en i det mindste delvis lukket flade, der er egnet til brug som pressestempel, eller en endeåbning med et væsentligt areal, således at rørenden kan udnyttes som et luftindtag til et indsugningsrør. I øvrigt vil et praktisk eksempel på et sådant arrangement blive beskrevet nedenfor.Above the bag holder 2 is arranged a telescopic tube system comprising an upper stationary tube 20 and a lower tube 22, which are both axially displaceable and rotatable with respect to the tube 20 and which is in extension of the cylinder space 12 formed by the opposing jaws 6. provided with an operating pin 24 extending radially through a vertical slot 26. As shown in FIG. 2, the pin 24 is mounted on an inner plate 28 which covers the slot 26 and is guided with a relatively strong iris mechanism 30 at the lower end of the tube 22 in such a way that the iris is closed when the pin is near the upper end of the tube. slot 26 and opens when the pin is forced downwardly toward the lower slot end. This arrangement is shown schematically only, but it will be appreciated that there will be many known mechanisms capable of performing a controlled closure and opening of the Rigging in such a way that the pipe end acts as either at least partially closed surface, which is suitable for use as a plunger or an end opening with a substantial area so that the pipe end can be utilized as an air intake for an intake pipe. Incidentally, a practical example of such an arrangement will be described below.

Fig. 1 kan være repræsentativ for en enkelt poseholder 2, der successivt føres gennem et antal operationer, eller for adskillige poseholdere, der på samme tid er tilstede i forskellige operationsstationer, idet holderne alle føres trinvist fra station til station under driften af ap-paratet. Ved en foretrukken udførelse er et antal poseholdere 2 anbragt på en karrusel, som roterer på kontinuerlig måde, idet hver poseholder 2 har sit eget overliggende stempelrørsystem 20,22, der ligeledes er monteret på karrusellen. Det komplette apparat indbefatter endvidere styreorganer til udvirkning af de forskellige operationer, som beskrives nedenfor, men da fig. 1 kun er en skematisk illustration, er sådanne styremidler kun vist i begrænset udstrækning i fig. 1.FIG. 1 may be representative of a single bag holder 2 which is successively passed through a number of operations, or for several bag holders present at the same time in different operating stations, the holders all being passed incrementally from station to station during operation of the apparatus. In a preferred embodiment, a plurality of bag holders 2 are disposed on a carousel which rotates continuously, each bag holder 2 having its own overhead piston system 20, 22 which is also mounted on the carousel. The complete apparatus further includes control means for effecting the various operations described below, but since FIG. 1 is only a schematic illustration, such control means are only shown to a limited extent in FIG. First

I stilling A af fig. 1 indtager plade- eller frontklappen 14 en opadskrånende stilling, hvori en pose med en allerede indført kylling kan modtages i det lommeformede rum mellem bagpladen 4 og klappen 14, idet kæberne 6 er tilbagetrukket fra hinanden, således at de tillader den øvre ende af posen at bevæges ind i rummet mellem de halvcirkulære kæbeudsparinger 10, når klappen 14 lukkes ind mod pladen 4. Derefter (fig. 1B) bevæges kæberne mod hinanden, hvorved de vil samle posemundingsdelen inde i cylinderrum-raet 12. Højden af poseholderen er valgt til at passe til størrelsen af de kyllinger, der skal behandles, således at også de ydre benender af kyllingerne vil være lokaliseret inde i cylinderrummet 12 med posemundingsdelen strækkende 148650 5 sig videre opad.In position A of FIG. 1, the plate or front flap 14 assumes an upwardly sloping position in which a bag with an already inserted chicken can be received in the pocket-shaped space between the backplate 4 and the flap 14, the jaws 6 being retracted from each other to allow the upper end of the bag to is moved into the space between the semi-circular jaw recesses 10 as the flap 14 is closed against the plate 4. Thereafter (Fig. 1B) the jaws are moved towards each other, thereby gathering the bag mouth portion within the cylinder space 12. The height of the bag holder is chosen to fit. to the size of the chickens to be treated so that the outer legs of the chicks will also be located inside the cylinder space 12 with the bag mouth portion extending further upward.

Kyllingens stilling i posen og i holderen er vist i fig.The position of the chicken in the bag and in the holder is shown in FIG.

3, der illustrerer alle de operationer, som skal udføres for at der kan foregå en lukning af posen ifølge en foretrukket fremgangsmåde, medens fig. 1 kun viser nogle af disse operationer. I stilling A kan kyllingeposen anbringes i holderen manuelt eller fortrinsvis automatisk fra afleveringsenden af et apparat til indføring af kyllingerne i poserne, f.eks. som omhandlet i nævnte GB-PS 1525559. I et sådant apparat kan kyllingens benender allerede være underkastet et fremadgående tryk, hvorved kyllingen er blevet foreløbigt sammentrykket til den i fig.3 illustrating all the operations to be performed in order to close the bag according to a preferred method, while FIG. 1 only shows some of these operations. In position A, the chicken bag can be placed in the holder manually or preferably automatically from the delivery end of an apparatus for introducing the chickens into the bags, e.g. As disclosed in the GB-PS 1525559. In such an apparatus, the legs of the chicken may already be subjected to a forward pressure, whereby the chicken has been provisionally compressed to that of FIG.

3A viste form, hvori benenderne kun strækker sig en smule bagud.3A in which the legs extend only slightly backwards.

Efter at holderen er lukket (stilling B), bevæges stempelrøret 22 med lukket bundiris 30 nedad til let komprimering af kyllingen ved nedtrykning af benenderne som vist i stilling C. Derefter (nu med henvisning til fig. 3) hæves stemplet 22 en smule, og bundirisen 30 åbnes (se stilling 3D). For åbning af irisen 30 er det tilstrækkeligt at forskyde betjeningstappen 24 nedad, og jfr. fig. 1C kan dette gøres ved hjælp af en stationær styrekam 32, som er anbragt i bevægelsesbanen for holderen og stempelsystemet.After the holder is closed (position B), the plunger tube 22 with closed bottom iris 30 is moved downward for easy compression of the chicken by depressing the leg ends as shown in position C. Thereafter (now with reference to Fig. 3) the plunger 22 is raised slightly and bottom iris 30 is opened (see position 3D). For opening of the iris 30, it is sufficient to displace the control pin 24 downwards, and cf. FIG. 1C this can be done by means of a stationary control cam 32 which is arranged in the path of movement of the holder and the piston system.

I fig. 1 er med H betegnet den stilling, som følger efter stilling C, men den pågældende stilling svarer ganske til stillingD i fig. 3. Udover at irisen 30 i denne stilling er åbnet, er stempelrøret 22 forbundet til en vacuumkilde gennem en slange 34, som er tilsluttet den øvre ende af det stationære teleskoprør 20. I stationen 3D vil derfor opsugningen gennem den åbnede ende af stempelrøret 22 medføre, at den løse top- eller mundingsdel af posen i holderen vil blive suget op i røret; i stilling C blev kyllingen trykket uanset om denne løse posedel blev sammentrykket på uordnet måde imellem stempelenden og kyllingen.In FIG. 1, H is the position that follows position C, but that position corresponds quite to position D in FIG. 3. In addition to opening the iris 30 in this position, the plunger tube 22 is connected to a vacuum source through a hose 34 which is connected to the upper end of the stationary telescope tube 20. In station 3D, therefore, the suction through the opened end of the plunger tube 22 will result. that the loose top or mouth portion of the bag in the holder will be sucked up into the tube; in position C, the chicken was pressed regardless of whether this loose bag portion was compressed in an unordered manner between the piston end and the chicken.

6 1488506 148850

Ved hjælp af en anden styrekam 36, se fig. 1H, tilbageføres derefter betjeningstappen 24 til lukning af irisen 30 som vist i fig. 3E. Denne lukning vil resultere i en mekanisk fastklemning af det nu i enden af røret 22 indsugede posemundingsmateriale.By means of another control cam 36, see FIG. 1H, then the operating pin 24 for closing the iris 30 as shown in FIG. 3E. This closure will result in a mechanical clamping of the bag bag material material now sucked into the end of the tube 22.

X henhold til opfindelsens hovedprincip kunne nu røret 22 blive roteret, hvorved posemundingsmaterialet kunne blive snoet og derefter fikseret f.eks. ved hjælp af klæbestrimmel. Dette er da også illustreret i fig. 1:1 stilling C er benenderne skubbet nedad af stemplet 22, hvorefter stempelirisen 30 er åbnet ved hjælp af styrekammen 32 og posemundingen er indsuget i stempelrøret i stilling H, hvorefter den anden styrekam 36 påvirker stempelirisen 30 til klemning omkring posemundingsdelen. I den følgende stilling, der i fig. 1 er betegnet K, er stempelrøret 22 i indgreb med en drivrem 38, der bevæges således, at den får stempelrøret til at rotere, hvorved posemundingsdelen bliver snoet (se stilling K i fig. 3). Derefter hæves stempelrøret op fra cylinderrummet 12 til blotlæggelse af den snoede posemundingsdel, som derefter fikseres ved hjælp af klæbestrimmel som beskrevet nedenfor.X according to the main principle of the invention, the tube 22 could now be rotated, whereby the bag mouth material could be twisted and then fixed e.g. using adhesive tape. This is then also illustrated in FIG. 1: 1 position C, the leg ends are pushed downward by the piston 22, after which the piston iris 30 is opened by the guide cam 32 and the bag mouth is sucked into the piston tube in position H, after which the second control cam 36 influences the piston iris 30 for clamping around the bag mouth part. In the following position shown in FIG. 1 is designated K, the plunger tube 22 is engaged by a drive belt 38 which is moved to rotate the plunger tube, thereby twisting the bag mouth portion (see position K in Fig. 3). Then, the plunger tube is raised from the cylinder compartment 12 to expose the twisted bag mouth portion, which is then fixed by adhesive strip as described below.

I den i fig. 3 illustrerede foretrukne fremgangsmåde er der imidlertid indbefattet yderligere operationer til forøgelse af pakningssikkerheden. Efter stilling C bliver således stempelrøret 22 hævet en smule inden eller under åbningen af bundirisen 30 (stilling D) til forøgelse af den sikkerhed, hvormed posemundingsdelen suges ind i røret 22.In the embodiment shown in FIG. However, in the preferred method illustrated in Fig. 3, further operations to increase packing security are included. Thus, after position C, the plunger tube 22 is raised slightly before or during the opening of the bottom iris 30 (position D) to increase the safety with which the bag mouth portion is sucked into the tube 22.

Derefter lukkes bundirisen 30 i den let hævede stilling af røret (stilling E), og derefter hæves røret yderligere (stilling F) for mekanisk optrækning af posemundingsdelen med henblik på udstrækning af denne for udglatning af eventuelle folder i foliematerialet.Then the bottom iris 30 is closed in the slightly raised position of the tube (position E), and then the tube is raised further (position F) for mechanical pull-up of the bag mouth portion to extend it to smooth any folds in the foil material.

Derefter åbnes bundirisen 30 påny (stilling G), således at der derefter kan indsuges luft i røret 22, hvorved den strak- 148650 7 te posemundingsdel vil blive stabiliseret, når stempelrøret derefter sænkes til samme højdestilling som i stilling C, se nu stilling H.Then the bottom iris 30 is reopened (position G) so that air can then be sucked into the tube 22, whereby the tight bag mouth portion will be stabilized as the piston tube is then lowered to the same height position as in position C, see now position H.

På denne måde sikres det, at det område af posemundingsdelen, som derefter fastklemmes af bundirisen 30 (stilling I; efter styrekammen 36 i fig. 1) er lokaliseret umiddelbart ovenover kyllingen, uden underliggende folder i posematerialet. Når bundlukket 30 af stempelrøret er passende udført, f.eks. som nedenfor nærmere beskrevet, kan det udøve en trykstempelvirkning også i dets åbne stilling, og i stilling H i fig. 3 vil derfor det åbne stempel fortsat kunne opvise en vis sammentrykningsvirkning på kyllingen; dette er ønskeligt, fordi de foldede kyllingeben meget vel kan have rettet sig noget ud,efter at de blev trykket i stilling C, og det er vigtigt, at benenderne er presset godt fremad (nedad) umiddelbart før den endelige lukning af posen. Allerede irislukket 30 kan opvise den ønskede stempelvirkning endog i dets åbne tilstand, fordi det ikke åbner til den fulde indvendige diameter af stempelrøret 22.In this way, it is ensured that the area of the bag mouth portion which is then clamped by the bottom iris 30 (position I; following the guide cam 36 in Fig. 1) is located immediately above the chicken, with no underlying folds in the bag material. When the bottom cap 30 of the plunger tube is suitably made, e.g. as further described below, it can exert a piston action also in its open position, and in position H of FIG. 3, therefore, the open piston may continue to exhibit some compression effect on the chicken; this is desirable because the folded chicken legs may well have straightened out after being pressed into position C, and it is important that the leg ends are pressed well forward (down) immediately before the final closure of the bag. The iris closure 30 may already exhibit the desired piston action even in its open state because it does not open to the full internal diameter of the piston tube 22.

I stilling I vil således posemundingsdelen være mekanisk grebet tæt ovenover den kompakterede kylling, og derefter hæves stempelrøret 22 en smule (stilling J) til yderligere strækning af posematerialet umiddelbart over kyllingen samt til forberedelse af posen til den følgende snoning i stilling K som nævnt ovenfor med henvisning til fig. 1.Thus, in position I, the bag mouth portion will be mechanically gripped tightly above the compacted chicken, and then the plunger tube 22 is slightly raised (position J) to further stretch the bag material immediately above the chicken and to prepare the bag for the following twist at position K as mentioned above with Referring to FIG. First

Efter snoningen af posemundingsmaterialet i stillingen K kan tre eller fire yderligere operationer foregå mere eller mindre samtidigt, jfr. stilling L i både fig. 1 og 3: 1) Frontklappen 14 på poseholderen åbnes let til reduktion af dens holdetryk på kyllingen, 2) kæberne 6 bevæges bort fra hinanden, 3) stempelrøret 22 hæves til en stilling ovenover overkanten af kæberne 6 og 4) et gaffellegeme 40, der normalt indtager en tilbagetrukket stilling bagved posehol- 148650 8 deren, skubbes fremad umiddelbart ovenover overkanten af bagpladen 4, f.eks. ved hjælp af en styrecylinder 42, hvorved den snoede og indsnævrede posemundingsdel vil optages i rummet mellem gaflerne på dette gaffellegeme 40 i det snævre rum imellem overkanten af bagpladen 4 og den nedre ende af stempelrøret 22, idet gaffellegemet fremskydes på tværs af bevægelsesretningen af poseholderen 2.Following the twisting of the bag mouth material in position K, three or four additional operations may be carried out more or less simultaneously, cf. position L in both FIG. 1 and 3: 1) The front flap 14 of the bag holder is easily opened to reduce its holding pressure on the chicken, 2) the jaws 6 are moved away from each other, 3) the plunger tube 22 is raised to a position above the upper edge of the jaws 6 and 4) a fork body 40 which usually a retracted position behind the bag holder 8 is pushed forward immediately above the upper edge of the backing plate 4, e.g. by means of a control cylinder 42, whereby the twisted and constricted bag mouth portion will be accommodated in the space between the forks of this fork body 40 in the narrow space between the upper edge of the back plate 4 and the lower end of the piston tube 22 .

Under den videre bevægelse af poseholderen 2 vil posemundingsdelen således blive fastholdt imellem enden af stemplet 22 og gaffellegemet, og den derimellem beliggende del bringes nu, i stilling M i indgreb med et omsnøringsapparat for klæbestrimmel, der kun er vist skematisk, da sådanne apparater allerede er velkendte; klæbestrimlen er betegnet med 44. Herved låses eller fikseres den snoede posedel, og derefter bevæges holderen forbi en skærestation N, hvori den snoede posedel afskæres umiddelbart over klæbestrimmelombindingen. I fig. 1 og 3 er skæreorganerne i station N vist som en stationær kniv 46, men andre skæremidler kan benyttes, og i praksis kan overskæringen være en operation, som er integreret med klæbestrimmelombindingen.Thus, during the further movement of the bag holder 2, the bag mouth portion will be retained between the end of the piston 22 and the fork body, and the portion located therebetween is now engaged in position M with an adhesive strip lubricator, which is only shown diagrammatically, since such devices are already well-known; the adhesive strip is indicated by 44. This locks or fixes the twisted bag part, and then the holder moves past a cutting station N, in which the twisted bag part is cut off immediately above the adhesive strip connection. In FIG. 1 and 3, the cutting means at station N are shown as a stationary knife 46, but other cutting means can be used, and in practice the cutting may be an operation integrated with the adhesive strip connection.

Umiddelbart efter afskæringen af den snoede posedel åbnes stemplets bundiris 30, jfr. fig. 1 ved hjælp af en styrekam 48, som indgriber med betjeningstappen 24, hvorved der påny suges luft ind i den åbne ende af stemplet. Den afskårne posedel, der i fig. 3 er betegnet med 50, stilling N, vil herved suges væk gennem røret 22, og som vist i den sidste stilling i fig. 1 er sugeslangen 34 forbundet til en vacuum-kilde 52 gennem en separator 54, hvori de afskårne posedele 50 opsamles.Immediately after the cut of the twisted bag part, the bottom iris 30 of the piston opens, cf. FIG. 1 by means of a control cam 48 which engages with the operating pin 24, thereby again sucking air into the open end of the piston. The cut bag portion shown in FIG. 3 is designated 50, position N will thereby be sucked away through the tube 22, and as shown in the last position of FIG. 1, the suction hose 34 is connected to a vacuum source 52 through a separator 54 in which the cut bag portions 50 are collected.

Derefter lukkes bundirisen 30 påny (stilling O, fig. 3), og frontklappen 14 vippes fremad og - jfr. stilling P -nedad til en afleveringsstilling, hvori den endelige posekylling 56 glider ned langs klappen 14.Then the bottom iris 30 is closed again (position O, Fig. 3) and the front flap 14 is tilted forward and - cf. position P-downwards to a delivery position in which the final bag chicken 56 slides down along the flap 14.

148650 9148650 9

Derefter svinges frontklappen 14 opad til en opadskrånende stilling, således at den er klar til modtagelse af en ny kylling, stilling A.Thereafter, the front flap 14 is swung upwards to an upwardly sloping position so that it is ready to receive a new chicken, position A.

Et eksempel på en praktisk udførelse af poseholderen 2 er vist i fig. 4 i åben stilling. Den omfatter den nævnte lodrette bagplade 4 og en frontklap 14 med en bunddel 16, som ved 18 er hængslet til den nedre ende af bagpladen 4, principielt ganske som i fig. 1. Også de halvcylindriske kæber 6 er benyttet, omend de her er anbragt på svingarme 60, der ved 62 er hængslet til et par bageste konsoller 64 nær den øvre kant af pladen 4. Den forreste øvre del af pladen 4 er forsynet med vandrette ribber 66, og kæberne 6 er modsvarende forsynet med kantfingre 68, der ved sammensvingning af kæberne 6 ved hjælp af egnede styremidler såsom en cylinder 70 bevæges langs med de mellem ribberne 66 dannede riller, idet de ydre ender af fingrene 68 herved vil være beliggende ved forsideplanet af ribberne 66. Lignende ribber 72 er udformet i eller på indersiden af den øvre del af frontklappen 14 for samarbejde med fingre 68 anbragt på den ydre kantdel af kæberne 6. Disse ribber kan være forsynet med buede forlængelser 74 udenfor sidekanterne af klappen 14. Når frontklappen 14 således svinges til dens lukkede stilling og kæberne 6 derefter svinges indad, vil det således sikres, at hele det løse mundingsmateriale af kyllingeposen vil blive samlet imellem kæberne 6 uden nogen fastklemning af materialet.An example of a practical embodiment of the bag holder 2 is shown in FIG. 4 in the open position. It comprises said vertical backplate 4 and a front flap 14 with a bottom part 16 which at 18 is hinged to the lower end of the backplate 4, in principle as in FIG. 1. The semi-cylindrical jaws 6 are also used, although they are mounted here on swing arms 60, which at 62 are hinged to a pair of rear brackets 64 near the upper edge of the plate 4. The front upper part of the plate 4 is provided with horizontal ribs. 66, and the jaws 6 are correspondingly provided with edge fingers 68 which, when pivoted by the jaws 6, are moved by suitable guide means such as a cylinder 70 along the grooves formed between the ribs 66, the outer ends of the fingers 68 being thereby disposed at the face plane. of the ribs 66. Similar ribs 72 are formed in or on the inside of the upper portion of the front flap 14 for cooperation with fingers 68 disposed on the outer edge portion of the jaws 6. These ribs may be provided with curved extensions 74 outside the lateral edges of the flap 14. thus, the front flap 14 is pivoted to its closed position and the jaws 6 are then pivoted inwardly, it will be ensured that the entire loose mouth material of the chicken bag will be assembled between jaws ne 6 without any clamping of the material.

Frontklappen 14 er et pladelegeme, som er forsynet med divergerende sidevinger 76. Ydre forlængelser 78 af disse vinger udgøres af separate pladedele, der hver er anbragt på den ene ende af en buet bærearm 80, hvis anden ende på svingbar måde er fastgjort til en aksel 82, som er drejeligt fastholdt ved hjælp af en lejebøsning 84 ved forsiden af klappen 14; de to aksler 82 er styreforbundet med et aktiveringsorgan 86, som kan påvirke akslerne til at dreje 148650 10 sig for indsvingning af pladedelene 78 ind mod de med punkterede linier viste stillinger. Aktiveringsorganer 86 kan f.eks. påvirkes ved hjælp af egnede styrekamorganer, så snart en ny kylling er blevet modtaget på klappen 14, hvorved kyllingen indjusteres til en korrekt orientering imellem vingedelene 78.The front flap 14 is a plate body provided with divergent side wings 76. Outer extensions 78 of these wings are formed by separate plate members, each disposed on one end of a curved support arm 80, the other end of which is pivotally attached to a shaft. 82, which is pivotally secured by a bearing sleeve 84 at the front of flap 14; the two shafts 82 are guided with an actuating means 86 which can actuate the shafts to rotate the plate parts 78 towards the positions shown in dashed lines. Activating means 86 may e.g. actuated by suitable control cam means as soon as a new chicken has been received on the flap 14, thereby adjusting the chicken to a proper orientation between the wing portions 78.

Bagpladen 4 er forsynet med faste vingedele 88, der bidrager til et egnet tværsnit af den lukkede kyllingeholder 2 nede under den rørformede del, som udgøres af kæberne 6.The backplate 4 is provided with fixed wing parts 88 which contribute to a suitable cross-section of the closed chicken holder 2 below the tubular portion constituted by the jaws 6.

Dette vil være klart ud fra det ovenbillede, som er vist af den lukkede holder 2 i fig. 5.This will be clear from the top view shown by the closed holder 2 in FIG. 5th

For den praktiske drift af apparatet ifølge opfindelsen vil det være særdeles fordelagtigt, om kyllingeposeholder-ne 2 er indstillelige til forskellige kyllingestørrelser.For the practical operation of the apparatus according to the invention, it will be particularly advantageous if the chicken bag holders 2 are adjustable for different chicken sizes.

I denne forbindelse er det kyllingernes længde, dvs. højden af den i holderen 2 lodret anbragte kyllingepose, som vil være af overordnet betydning, fordi kyllingens benender bør være beliggende rimeligt nøjagtigt i forhold til niveauet af de lukkede kæber 6. Af denne grund er der på klapbunden 16 anbragt en bundklods 90, hvis tykkelse svarer til størrelsen af de pågældende kyllinger eller hvis beliggenhed er indstillelig med hensyn til afstanden fra bundpladen 16. Bundklodsen kan herved endog være automatisk indstillelig, hvilket i det følgende skal forklares nærmere under henvisning til fig. 6: I fig. 6 er holderen 2 vist i et sidebillede i dens åbne modtagestilling, og den er beliggende netop ud for afleveringsenden af en transportør 92, som tjener til successivt at indføde en kyllingepose 94 til de holdere 2, som passerer transportørenden. Forrest på bundpladen 16 af klappen 14 er anbragt en fremstående kamfølgerrulle 96, der normalt bæres på og langs en stationær kamskinne 98, som tjener til at styre vippebevaagelserne af klapenheden 14,16? dette arrangement er også vist ved stillingerne A og B i fig.In this regard, it is the length of the chickens, ie. the height of the chicken bag vertically disposed in the holder 2, which will be of paramount importance because the legs of the chicken should be located reasonably accurately in relation to the level of the closed jaws 6. For this reason, a bottom block 90 is provided, the thickness of which is corresponds to the size of the chickens in question or whose location is adjustable with respect to the distance from the base plate 16. The bottom block can thereby even be automatically adjustable, which will be explained in more detail below with reference to fig. 6: In FIG. 6, the holder 2 is shown in a side view in its open receiving position, and it is located just off the delivery end of a conveyor 92 which serves to successively feed a chicken bag 94 to the holders 2 passing the conveyor end. At the front of the base plate 16 of the flap 14 is provided a prominent cam follower roller 96, which is normally carried on and along a stationary cam rail 98, which serves to control the tilting movements of the flap unit 14, 16? this arrangement is also shown at positions A and B of FIG.

148650 11 1, hvor en skrå kamskinnedel 100 er anbragt for at påvirke klappen til lukning, når den nærmer sig stilling B. Bundklodsen 90 er et separat element, som er anbragt på en stang 102, der passerer gennem en låsebøsning 104 ved midten af bundpladen 16. Stangen 102 er forsynet med modhagetænder, som samvirker med en låsepal i bøsningen 104, således at stangen 102 efter opskubning vil blive fastlåst af palen mod nedadføring indtil et paludløserorgan 106 aktiveres.148650 11 1, wherein an inclined cam rail portion 100 is disposed to actuate the flap for closure as it approaches position B. The bottom block 90 is a separate member disposed on a rod 102 passing through a locking sleeve 104 at the center of the bottom plate. 16. The rod 102 is provided with bar teeth which cooperate with a locking pawl in the sleeve 104, so that the rod 102, after pushing, will be locked by the pawl downwardly until a pawl release member 106 is actuated.

Hvis en serie af kyllinger af lille størrelse skal behandles, kan man således låse bundklodsen 90 i en passende hævet stilling. I fig. 6, der svarer til stilling A i fig. 1 og 3, er det vist, at der ved den pågældende station er anbragt en fast understøtning 108 for en justeringscylinder 110, på hvis stempelstang der er anbragt et ydre skoeller skinnestykke 112, som kan påvirkes til at skubbe stangen 102 opad til enhver ønsket stilling. Cylinderen 110 kan være fjernstyret af en operatør, som betjener en vælgerkontakt svarende til størrelsen af den pågældende kylling, eller cylinderen kan være automatisk styret i afhængighed af en størrelses- eller vægtdetektering af de enkelte kyllinger, som føres til holderne. For opnåelse af sidstnævnte styring kan der på understøtningen 108 være anbragt en trykmåler 114 med et føleorgan, som er forbundet med en fri endeskinnedel 116 udformet som en stang, der strækker sig parallelt med kamskinnen 98 langs en kort længde af denne og er således anbragt, at den understøtter kamfølger-rullen 96 netop ude af berøring med kamskinnen 98, hvorved det moment i retning med uret, som virker på klapenheden 14,16 ved længden af den nyligt indførte kyllingepose 94, vil frembringe et tryk på trykmåleren 114 bestemt ved vægten og dermed størrelsen af kyllingen; trykmåleren 114 kan derfor være operativt forbundet med cylinderen 110 gennem egnede styremidler for derved at udvirke, at sko- eller skinnestykket 112 hæver stangen 102 og dermed bundklodsen 90 til 148650 12 en stilling svarende til den aktuelle eller individuelle størrelse af kyllingen.Thus, if a series of small sized chicks is to be treated, the bottom block 90 can be locked in a suitably raised position. In FIG. 6, corresponding to position A of FIG. 1 and 3, it is shown that at that station a fixed support 108 is provided for an adjustment cylinder 110 on whose piston rod is provided an outer sheave rail 112 which can be actuated to push the rod 102 upward to any desired position. . The cylinder 110 may be remotely controlled by an operator operating a selector switch corresponding to the size of the chicken in question, or the cylinder may be automatically controlled depending on the size or weight detection of the individual chickens fed to the holders. To obtain the latter control, a pressure gauge 114 may be provided on the support 108 with a sensing means which is connected to a free end rail portion 116 formed as a rod extending parallel to the cam rail 98 along a short length thereof and thus disposed. it supports the cam follower roller 96 just out of contact with the cam rail 98, whereby the clockwise torque acting on the flap unit 14,16 at the length of the newly introduced chicken bag 94 will produce a pressure on the pressure gauge 114 determined by weight and hence the size of the chicken; The pressure gauge 114 can therefore be operatively connected to the cylinder 110 through suitable guiding means to cause the shoe or rail piece 112 to raise the rod 102 and thus the bottom block 90 to 148650 12 a position corresponding to the actual or individual size of the chicken.

Når holderne 2 har passeret stilling N i fig. 3 og før de returnerer til stilling A, kan paludløserorganet 106 aktiveres ved indgreb med et fast, ikke vist betjeningsorgan, således at bundklodsen 90 i hver af holderne vil blive omstillet til at indtage den nederste stilling inden holderen føres ind i modtagestillingen eller -stationen A.When the holders 2 have passed position N in FIG. 3, and before returning to position A, the pawl release member 106 can be actuated by engaging a fixed, non-shown actuator, such that the bottom block 90 in each of the holders will be adjusted to take the lower position before the holder is inserted into the receiving position or station A .

Når der anvendes en højdeindstillelig bundklods 90, vil denne yderligere kunne udnyttes til frembringelse af en ekstra sammentrykning af kyllingen i stillingen H eller I i fig. 3, idet der i disse stillinger eller stationer kan være anbragt ikke viste styremidler til yderligere hævning af stangen 102, f.eks. et stykke svarende til en enkelt tand på stangen uanset stangstillingen på de ankommende holdere. Eksempelvis kan denne funktion styres elektrisk, baseret på hukommelsesmidler for den oprindelige højdeindstilling af stængerne i startstiliingen A.When a height-adjustable bottom block 90 is used, it can be further utilized to produce an additional compression of the chicken in position H or I in FIG. 3, in which these means or stations may not be arranged control means for further raising the rod 102, e.g. a piece corresponding to a single tooth on the rod regardless of the rod position of the arriving holders. For example, this function can be electrically controlled based on memory means for the original height adjustment of the bars in the starting position A.

Det er nævnt ovenfor, at de sammentrykkede foldede kyllinge-ben viser en tendens til at udrette sig, så snart det anvendte tryk bringes til ophør. På denne baggrund er det et særligt træk ved opfindelsen, at der kan benyttes midler, som søger at fastholde benene i de sammentrykkede stillinger, som er frembragt i stationerne C og H-I ifig. 3. Disse midler består simpelthen af en rektangulær åbning 118 i bagpladen 4 på holderen 2, se fig. 4, hvilken åbning er dækket ved bagsiden ved hjælp af en gummimembran 120, således at åbningen 118 har en blotlagt overkant 122. Når kyllingens benender presses nedad i stationen C, vil de ydre bendele søge at bevæge sig bagud inde i holderen, og en sådan forskydning muliggøres ved, at gummimembranen 120 kan vige i en vis udstrækning; samtidigt vil en del af de ydre bendele trykkes ind bag eller under den øvre åbningskant 122, hvorved denne kant vil forhindre benene i at re 148650 13 turnere til deres mindre sammentrykkede stillinger, når stempeltrykket derefter aflastes, og det samme vil ske i stationerne H og I.It is mentioned above that the compressed folded chicken legs show a tendency to erode as soon as the pressure applied is stopped. Against this background, it is a particular feature of the invention that means can be used which seek to retain the legs in the compressed positions produced at stations C and H-1. 3. These means simply consist of a rectangular opening 118 in the back plate 4 of the holder 2, see fig. 4, which opening is covered at the rear by means of a rubber membrane 120 such that the opening 118 has an exposed top edge 122. As the chicken legs are pressed downward in the station C, the outer leg portions will seek to move backwards within the holder, and such displacement is made possible by the fact that the rubber membrane 120 can fold to a certain extent; at the same time, some of the outer leg portions will be pressed behind or below the upper opening edge 122, thereby preventing the legs from re-turning to their less compressed positions when the piston pressure is then relieved, and the same will occur at stations H and IN.

Brugen af gummimembranen 120 indebærer yderligere, at holderne 2 er endnu bedre egnet til optagelse af kyllinger af forskellige størrelser, fordi der vil forekomme en indbygget fleksibilitet med hensyn til holdernes tykkelsesdimension.The use of the rubber membrane 120 further implies that the holders 2 are even better suited for accommodating chickens of different sizes because there will be a built-in flexibility with regard to the thickness dimension of the holders.

Imidlertid vil den effektive tykkelse af holderne 2 for yderligere tilpasning til forskellige grupper af kyllinge-størrelser kunne være justerbar eller variabel ved variation af afstanden mellem bagpladen 4 og frontklappen 14.However, the effective thickness of the holders 2 for further adaptation to different groups of chicken sizes may be adjustable or variable by varying the distance between the back plate 4 and the front flap 14.

Dette vil på ikke vist måde være let opnåeligt derved, at frontklappen 14 kan være forskydelig i forhold til bundpladen 16, eller ved hjælp af en indvendig frontklappladedel, som fastholdes eller støttes af frontklappen 14 med variabel afstand derfra; midlerne til opnåelse af den variable afstand kan indbefatte midler til at gøre den indvendige pladedel fjedrende bevægelig imod og bort fra selve frontklappen 14.This will not be readily achievable in that the front flap 14 may be displaceable relative to the base plate 16, or by means of an internal front flap portion which is retained or supported by the front flap 14 with varying distance therefrom; the means for achieving the variable distance may include means for making the inner plate portion resiliently movable against and away from the front flap 14 itself.

I fig. 7 er vist en foretrukken indretning af det nævnte stempelsystem. Stempelrøret er betegnet med 121, og ved dets øvre ende er det forsynet med et tandhjul 123, der set i aksialretningen understøttes ved hjælp af en omgivende bæreblok 124, der i sin forside har en åbning 126, hvorigennem et andet tandhjul eller en tandrem svarende til remmen 38 i fig. 1, station K, kan indgribe med tandhjulet 123 for rotation af stempelrøret. Den øvre sugeslange 34 er forbundet direkte til oversiden af bæreblokken 124, og det øvre teleskoprør 20 som vist i fig. 1 og 3 er her udeladt; stempelrøret 121 er båret og styret ved hjælp af bæreblokken 124, og den nedre ende af slangen 34 bevæges op og ned, når stempelrøret forskydes aksialt.In FIG. 7 is a preferred arrangement of said piston system. The plunger tube is designated 121, and at its upper end is provided with a sprocket 123 which, in the axial direction, is supported by a surrounding support block 124 having at its front an opening 126 through which a second sprocket or a tooth belt corresponding to the belt 38 in FIG. 1, station K may engage the pinion 123 for rotation of the piston tube. The upper suction hose 34 is connected directly to the upper side of the support block 124, and the upper telescopic tube 20 as shown in FIG. 1 and 3 are omitted here; piston tube 121 is supported and guided by support block 124, and the lower end of hose 34 is moved up and down as the piston tube is axially displaced.

De vertikale bevægelser af stempelrøret 121 styres ved hjælp 148650 14 af en kamfølger 128, som er anbragt på bæreblokken 124 fremspringende fra undersiden af dennes forkant, hvilken kamfølger samvirker med et styreskinnesystem omfattende en nedre skinne 130 til generel understøtning af bæreblokken 124 og derned stempelrøret 121 ved bevægelsen gennem den pågældende bane, og en øvre nedadskrånende skinnedel 132, som er anbragt langs de dele af denne bane, hvori stemplet ønskes at blive presset nedad for udførelse af dets trykvirkning mod kyllingen.The vertical movements of the piston tube 121 are controlled by means of a cam follower 128 disposed on the support block 124 projecting from the underside of the leading edge thereof, which cooperates with a guide rail system comprising a lower rail 130 for general support of the carrier block 124 and thereafter the piston tube 121. by moving through said web, and an upper downwardly sloping rail portion 132 which is disposed along those portions of said web in which the piston is desired to be pressed downward to perform its compressive action against the chicken.

Bæreblokken 124 har en bageste konsol 134, som udgør en bøsning, der er lodret giideligt anbragt på en styresøjle 136, der indgår som et fast element i selve karruselkonstruktionen.The support block 124 has a rear bracket 134 which is a sleeve that is vertically mounted on a guide column 136 which is a fixed element of the carousel structure itself.

Lukkeorganerne ved den nedre ende af stempelrøret i fig.The closure means at the lower end of the plunger tube of FIG.

7 er vist i en foretrukken udførelse, se også fig. 8. De omfatter en halvcirkulær bundskive 138, som er stationært fastgjort til rørenden på en sådan måde, at den efterlader den anden halvdel 140 af rørenden åben. Inde i røret er anbragt en aksialt forskydelig bøsning 142, som har en ned-adragende del 144, hvis nedre ende er forsynet med en ligeledes stort set halvcirkulær skive 146, som er omvendt orienteret i forhold til den faste skive 138, men overlappende denne langs deres fælles kant. Bøsningen 142 er forsynet med modstående radiale tappe 148, som strækker sig udad gennem lodrette slidser 150 i røret 121 og er forbundet med en yderbøsning 152 anbragt lodret forskydeligt på røret 121 og forsynet med en rundtgående rille 154. Denne rille er i frit rotationsindgreb med et gaffel- eller ringlegeme 156, som er forbundet med en stempelstang 158 hørende til en lodret styrecylinder 160 anbragt på konsollen 134.7 is shown in a preferred embodiment, see also FIG. 8. They comprise a semicircular base disc 138 fixed stationarily to the pipe end in such a way that it leaves the other half 140 of the pipe end open. Inside the tube is arranged an axially displaceable sleeve 142 which has a downwardly extending portion 144, the lower end of which is also provided with a substantially semi-circular disk 146 which is inversely oriented relative to the fixed disk 138, but overlapping it along their common edge. The sleeve 142 is provided with opposite radial pins 148 extending outwardly through vertical slots 150 in the tube 121 and connected to an outer sleeve 152 disposed vertically displaceable on the tube 121 and provided with a circumferential groove 154. This groove is in free rotational engagement with a fork or ring body 156 which is connected to a piston rod 158 of a vertical control cylinder 160 mounted on the bracket 134.

Det vil umiddelbart forstås, at styrecylinderen 160 ved denne indretning vil være i stand til at hæve og sænke den bevægelige bundskive 146 endog under rotation af stempelrøret 148650 15 121, og den med punkterede linier viste hævede stilling vil svare til, at irisiudretningen 30 i fig. 1-3 er åben for mu-liggørelse af luftindtag, medens den lukkede stilling tilsvarende er en kombineret luftafspærringsstilling, aktiv komprimeringsstilling og posemundings- fastklemningsstilling.It will be understood immediately that in this device the control cylinder 160 will be able to raise and lower the movable bottom disk 146 even during rotation of the piston tube 148650 15 121, and the raised position shown in broken lines will correspond to the iris device 30 of FIG. . 1-3 is open for enabling air intake, while the closed position is correspondingly a combined air shut-off position, active compression position and bag mouth clamping position.

Ved brugen af stempelrøret med dettes nedre ende delvis lukket af den faste skive 138, fig. 7 og 8, vil luftindtaget gennem rørenden være begrænset og ikke-symmetrisk, og for at forøge det effektive luftindtagsareal kan man på fordelagtig måde påvirke stempelrøret til at rotere under de sænkningsbevægelser, som finder sted under luftindsugning, f.eks. mellem stillingerne G og H i fig. 3.In the use of the piston tube with its lower end partially closed by the fixed disc 138, FIG. 7 and 8, the air intake through the pipe end will be limited and non-symmetrical, and in order to increase the effective air intake area one can advantageously influence the piston tube to rotate during the lowering movements which take place during air intake, e.g. between positions G and H of FIG. Third

I praksis kan det endog foretrækkes at gøre brug af en tilsvarende roterende "sugesænkning" af stempelrøret fra stilling B i fig. 3 indtil stempelenden når en position lidt over kyllingens benender, f.eks. 2 cm neden under oversiden af kæberne 6, således at stempelenden ikke lukkes før den er lige ved at gå i anlæg mod benenderne, hvorved det i vid udstrækning vil undgås, at den frie mundingsdel af posen sammenkrølles nede under stemplet. Da posemundingsdelen derefter gribes af stempelenden, vil det være hensigtsmæssigt at lade stempelenden forblive lukket under den følgende opadgående bevægelse, dvs. stempelenden forbliver uåbnet i stilling D i fig. 3.In practice, it may even be preferable to use a corresponding rotary "suction lowering" of the piston tube from position B of FIG. 3 until the piston end reaches a position slightly above the chicken legs, e.g. 2 cm below the top of the jaws 6 so that the piston end is not closed until it is just about to engage the leg ends, thereby largely preventing the free mouth portion of the bag from curling down under the piston. Since the bag mouth portion is then gripped by the piston end, it will be convenient to leave the piston end closed during the following upward movement, i.e. the piston end remains unopened in position D of FIG. Third

I fig. 8 er vist en ændret udførelse af stempelsystemet ifølge fig. 7. Bæreblokken 124 er monteret på styresøjlen 136 ved hjælp af en yderligere bæredel 170, i forhold til hvilken bæreblokken 124 er nedadforskydelig imod virkningen af en trykfjeder 172, som tydeligt vist. Bæredelen 170 er forsynet med en bageste kamfølger 174, som samvirker med de to hovedkamskinner, der her er monteret bagved stempeisysternet.In FIG. 8 is a modified embodiment of the piston system of FIG. 7. The support block 124 is mounted on the guide column 136 by means of an additional support member 170, relative to which the support block 124 is downwardly displaceable against the action of a compression spring 172, as clearly shown. The support portion 170 is provided with a rear cam follower 174 which cooperates with the two main cam rails mounted here behind the piston ice system.

Stempelsystemet vil således fortsat blive trykket nedad, 148650 16 medens det bevæger sig langs en nedadskrånende del af den øvre kamskinne 132, og normalt vil stempelrøret 121 ganske let blive hævet og understøttet under passagen langs en opadskrånende, henholdsvis vandret del af den nedre styreskinne 130. Når imidlertid posen med den snoede mundingsdel trækkes opad af stempelrøret i stationerne L-M vil der være sikker for, at posen eller kyllingen ikke beskadiges, ifald løftevirkningen på skinnen 30 fortsætter efter at den Øvre ende af kyllingepakningen er bragt i anlæg mod undersiden af gaffellegemet 40, fordi en yderligere løftevirkning af bæredelen 170 vil få fjederen 172 til at give efter, således at stempelrøret kan forblive i den pågældende stilling. Med andre ord kan styreskinnen være udformet til at fremkalde en tilstrækkelig løftning i hvert enkelt tilfælde uden at fremkalde skade i sådanne tilfælde, hvor den maksimale løftehøjde ikke er påkrævet eller er direkte uønsket. Den endelige aksiale strækning af posen vil således blive i hovedsagen ensartet uanset variationer i kyllinges tør r el s en .Thus, the piston system will continue to be pressed downwardly as it moves along a downwardly sloping portion of the upper cam rail 132, and normally the piston tube 121 will be easily raised and supported during passage along an upwardly sloping or horizontal portion of the lower guide rail 130, respectively. However, when the bag with the twisted mouth portion is pulled upward by the plunger tube at stations LM, it will be ensured that the bag or chicken is not damaged if the lifting effect on the rail 30 continues after the upper end of the chicken gasket abuts against the underside of the fork body 40. because a further lifting effect of the support portion 170 will cause the spring 172 to yield so that the piston tube can remain in that position. In other words, the guide rail may be designed to induce adequate lifting in each case without causing damage in cases where the maximum lifting height is not required or is directly undesirable. Thus, the final axial stretch of the bag will be substantially uniform regardless of variations in the dry or elasticity of the chicken.

Kamfølgeren 128 ved den nedre forside af bæreblokken 124 i fig. 7 er også benyttet i fig. 8, selvom den ikke her benyttes til den generelle styring af hæve- og sænkefunktionen af stempelrøret. Kamfølgeren 128 er imidlertid fortsat brugbar for samvirke med særlige kamskinnedele, som er anbragt opadskrånende lokalt langs udvalgte funktionsstationer med henblik på at sikre, at stempelrøret 121 virkelig løftes på den påkrævede måde uanset tilstedeværelsen af fjederen 172; det er således i station L i fig. 2 vigtigt, at stempelrøret er blevet løftet tilstrækkelig fri af kæberne 6 for indførelsen af gaffellegemet 40 nedenunder stemplet, og tilsvarende er det vigtigt at undgå materiel berøring mellem de bevægede stempler og den stationære klæbestrimmelapplikator og overskæringsindretningen i stationerne M og N.The cam follower 128 at the lower front of the carrier block 124 of FIG. 7 is also used in FIG. 8, although it is not used here for the general control of the raising and lowering function of the plunger tube. However, cam follower 128 continues to be useful for cooperating with special cam rail portions located upwardly locally along selected operating stations to ensure that piston tube 121 is truly lifted in the required manner regardless of the presence of spring 172; it is thus in station L of FIG. 2, it is important that the piston tube has been lifted sufficiently free of the jaws 6 for the insertion of the fork body 40 below the piston, and correspondingly it is important to avoid material contact between the moving pistons and the stationary adhesive strip applicator and the cutting device at stations M and N.

I fig. 8 er vist den yderligere modifikation, at gaffellege- 148650 17 met 156, som styrer bundlukket i stempelrøret 121 ved indgrebet med den glidelige drejebøsning 152, aktiveres ved hjælp af den lodrette stang 158, der ikke er en stempelstang som i fig. 7, men er en foroven skrueskåret stang, der strækker sig op gennem et hul i bæreblokken og ovenover denne samvirker med en møtrikbøsning 176, som ved sin øvre ende er forsynet med et tandhjul 178. Det vil umiddelbart forstås, at gaffellegemet 156 og dermed bundlukket i stempelrøret 121 vil kunne aktiveres ved at tandhjulet 178 påvirkes til rotation i den ene eller den anden retning ved hjælp af passende tandstænger anbragt langs de relevante dele af stempelsystemets bevægelsesbane.In FIG. 8, the further modification is shown that the fork member 156, which controls the bottom cover of the piston tube 121 by engagement with the slidable pivot 152, is actuated by the vertical rod 158 which is not a piston rod as in FIG. 7, but is a top screwed rod extending up through a hole in the support block and above it cooperates with a nut bushing 176 provided at its upper end with a sprocket 178. It will be understood immediately that the fork body 156 and thus the bottom cover in the piston tube 121 can be actuated by the gear 178 being rotated in one or the other direction by means of suitable tooth rods arranged along the relevant parts of the piston system's path of movement.

Ved den foretrukne fremgangsmåde ifølge opfindelsen håndteres kyllingerne i opretstående stilling, men det vil også være muligt at håndtere pakningerne med enhver anden orientering. Ydermere skal det bemærkes, at fremgangsmåden ikke er begrænset til lukning af kyllingeposer, da poser indeholdende andre arter af genstande kan lukkes på en tilsvarende måde.In the preferred method of the invention, the chickens are handled in an upright position, but it will also be possible to handle the gaskets with any other orientation. In addition, it should be noted that the method is not limited to the closure of chicken bags, since bags containing other species of articles can be closed in a similar manner.

Claims

148650 P A T E N T K R A V:

A method of sealing bag gaskets for broiler or other poultry in which the leg ends of the chicken inserted into a flexible bag blank with the head end frontly placed in a bag holder are subjected to an inward pressure from the open end of the bag blank, after which the open bag end actuated for closure outside the legs for fixing the chicken in a compressed position within the closed bag, by engaging the bag mouth with a suction nozzle which is rotated to twist the bag mouth, after which the twisted mouth is fixed and cut, characterized in that placing the bag gasket with the open bag mouth portion housed inside or near a tubular portion (12) of the holder, then exerting pressure on the chicken legs by inserting a pressure piston (22,30,121) into the tubular portion (12), and a suction effect is then induced through the active end of the piston (22), which is then engaged with the open end of the bag, thus so that the free mouth portion · of the bag item is sucked in, after which the bag mouth portion thus sucked into the suction piston (22) is clamped to the piston (22,30,121) before being rotated to twist the bag closure *

Apparatus for closing bag seals for broilers or other poultry by the method of claim 1 with a bag holder (2) for receiving a bag with a chicken introduced therein with the head end in front and with a rotatable suction nozzle for receiving the bag mouth and closing the bag. this, by welding thereof, - characterized in that the bag holder (2) has a tubular bag holder part (6,12) which is arranged so that it can receive the mouth end and the legs of a chicken bag (1) located in the holder (2) and that the apparatus further comprises a piston (22,30,121) which is operable for insertion into the tubular portion (12) for compacting the chicken by pressing the leg ends into the bag, preferably with said piston (22,121) combined or identical suction pipe (22,21 ), which can be inserted into the tubular portion (12) for suction of the free bag mouth opening portion, in addition to the bumpy portion of the chicken, at the outer end of the suction tube (22,21), clamping means (30,146) which are preferably disposed on said suction pipe (22,121) and are operable to mechanically engage the bag mouth portion just outside the rubber end of the chicken, which clamping means (30, 146) are rotatable to cause said bag sniffing at this location.

Apparatus according to claim 2, characterized in that the bag holder (2) is open and closed between an open bag receiving position and a closed active position, wherein the chicken is held with its legs positioned near said tubular part (6,12) which is itself axially fragmented, consisting of two or more radially movable portions (6) which can be pushed against each other to form said tubular portion (12) and containment of the bag mouth portion therebetween.

Apparatus according to claims 2 and 3, wherein the bag holder (2) has a supporting bottom part for the head end of the chicken, and control means for height adjustment of this bottom part relative to the rotatable suction nozzle according to the size of the received chicken, characterized in that the bottom part (90) is adjustable for its distance from said tubular portion (6,12).

Apparatus according to claim 4, wherein the rotatable suction nozzle is provided with means for internal clamping 148650 of at least part of the bag mouth, characterized in that said piston is constituted by a pipe body (22,121) which is or can be extended by the tubular portion (12), which at its end facing the tubular portion is formed with closure means (30,146) interchangeable between a first position forming a predominantly closed end surface portion of the tubular piston such that the piston (22,121) ) can perform its bone thrust function by an axial movement, and a second position in which at least a substantial portion area (140) of the piston end is open, the opposite end of the tubular piston (22,121) being arranged for connection to a vacuum source for generation of a suction through the piston end when its closing means occupies said second position, which closing means (30,146) can then be reset to the first position thereof, so that the bag mouth portion so sucked into the piston end can be held clamped to the piston end while the piston is rotated for twist closure of the bag.

Apparatus according to claim 5, characterized in that the tubular piston (22,121) is formed as a rotatable and displaceable tubular body which is permanently extended by the tubular holder part (6,12) and is permanently connected to the source of vacuum through suitable valve means. (30,146).

Apparatus according to claim 6, characterized in that the tubular piston (121) is provided at its free end with a first transverse plate part (138) which partially covers the pipe end, while a clamping means (144) comprising a second transverse plate portion · (146) which partially closes the tube cross-section and is adapted to be switched between an open position in which suction air can pass through the tube and a closed position in which the two transverse plate portions (138,146)