DK156669B3

DK156669B3 - Procedure and apparatus for removal or fat and meat from the flesh side of the skin or pelt of a fur-bearing animal and rollers for use in such an apparatus

Info

Publication number: DK156669B3
Application number: DK483786A
Authority: DK
Inventors: Bent Juul Larsen
Original assignee: Bs Teknik Af 1990 Aps
Priority date: 1986-02-20
Filing date: 1986-10-09
Publication date: 1990-02-12
Also published as: DK156669C; DK483786A; DK483786D0

Abstract

An apparatus for removal of the remains of fat and flesh from the flesh-side of the skin or pelt (25) of a fur-bearing animal has a piercing plug (15) with a free tapered end. The skin (25) that shall be treated is brought with the tail side outwards and in an essentially stretched-out condition onto the free end of the plug. The plug (15) generally has a polygonal, for example rectangular, cross section. The plug and the skin brought onto it is transferred lengthwise through a scraper by a pair of rollers (26, 31) positioned over one another that have scraping edges (49) which together form a contour which generally flows the cross section contour of the plug (15). The remains of the fat and flesh can thus be removed from the skin (25) through a single forwards movement of the plug in relation to the scrapers, and the treated skin can be pulled from the plug upon its return path.<IMAGE>

Description

DK 156669 B3 iDK 156669 B3 i

Et skind, der er blevet trukket af et pelsdyr, har normalt lag eller rester af fedt og/eller kød, der sidder fast på skindets kødside. Sådanne lag eller rester skal fjernes, før skindet kan viderebehandles. Den foreliggende opfmdelse angår en fremgangsmåde og et apparat af den i krav 1 og 2 angivne art til fjernelse af sådanne uønskede rester af 5 fedt og/eller kød fra kødsiden af skindet fra et pelsdyr.A fur that has been pulled by a fur animal usually has layers or remnants of fat and / or meat stuck to the flesh side of the fur. Such layers or residues must be removed before the skin can be further processed. The present invention relates to a method and apparatus of the kind set forth in claims 1 and 2 for removing such undesirable residues of 5 fat and / or meat from the meat side of the skin of a fur animal.

Et kendt apparat af den omhandlede art har en konisk dom, der er lejret ved begge ender således, at den kan drejes om sin længdeakse. Et skind, der skal behandles, anbringes på domen med kødsiden vendende udefter. En skrabeindretning, der er en 10 enkelt mile, som er fremstillet af et elastisk eftergiveligt gummimateriale, og hvis akse strækker sig på tværs af domens akse, bringes til at rotere om sin akse samtidig med, at milen presses i anlæg mod skindet og bevæges langs domen. Rullen har på sin perifere flade udformet tre med indbyrdes perifere afstande anbragte, retlinjede skrabende kanter, der strækker sig parallelt med milens akse. Rester af fedt og kød kan skrabes af 15 en snæver, langsgående zone på skindet eller pelsen derved, at den roterende mile manuelt bevæges frem og tilbage langs domen, og fra tid til anden drejes domen en vis vinkel, så at en anden langsgående zone på skindet udsættes for skrabebehandlingen. Et sådant apparat er vist og beskrevet i dansk patentskrift nr. 113.795.A known apparatus of the kind in question has a tapered dome which is mounted at both ends so that it can be rotated about its longitudinal axis. A skin to be treated is placed on the meat side facing outwards. A 10-single-mile scraper device made of a resilient resilient rubber material whose axis extends across the axis of the dome is rotated about its axis while pressing the mile into contact with the skin and moving along dome. The roller has on its peripheral surface formed three spaced apart, rectangular scraping edges extending parallel to the axis of the mile. Residues of fat and meat can be scraped by a narrow, longitudinal zone of the skin or coat, by manually moving the rotating mile back and forth along the dome, and from time to time the dome is turned a certain angle so that another longitudinal zone of the skin is subjected to the scratching treatment. Such an apparatus is shown and described in Danish Patent Specification No. 113,795.

20 Ved den foreliggende opfmdelse er der blevet tilvejebragt en fremgangsmåde til fjernelse af fedt og kød fra kødsiden af skindet eller pelsen fra et pelsdyr, idet skindet med kødsiden vendende udefter anbringes på en langstrakt dom i i hovedsagen udstrakt tilstand, hvorefter en skrabeindretning med skrabende kanter og domen bevæges i forhold til hinanden i domens længderetning, medens i det mindste nogle af de skraben-25 de kanter på skrabe indretningen holdes liggende an mod skindets kødside, og fremgangsmåden ifølge opfindelsen er ejendommelig ved, at der anvendes en skrabeindretning med skrabende kanter, der tilsammen bestemmer en kontur, der er i hovedsagen komplementær til konturen for domens tværsnit. Som følge af, at skrabeindretningens skrabende kanter afgrænser en kontur, der er i hovedsagen komplementær til konturen 30 af domens tværsnit, dvs. af det på domen anbragte skind i udstrakt tilstand, kan skindets kødside befries fra uønskede rester af fedt og kød under et enkelt slag af den 2 DK 156669 B3 relative bevægelse mellem domen og skrabeindretningen i domens længderetning, og uden at det er nødvendigt at dreje domen.In the present invention, there has been provided a method for removing fat and meat from the meat side of the skin or the fur of a fur animal, the skin with the meat side facing outwards being placed on an elongated dome in a substantially extended state, after which a scraping device having scraping edges and the dome is moved relative to one another in the longitudinal direction of the judgment, while at least some of the scraped edges of the scraping device are held abut against the meat side of the skin, and the method according to the invention is characterized by the use of a scraping device with scraping edges which together, determine a contour that is essentially complementary to the contour of the cross section of the court. Because the scraping edges of the scraping device define a contour which is substantially complementary to the contour 30 of the cross-section of the dome, i.e. of the skin placed on the dome in the extended state, the flesh side of the skin can be freed from unwanted residues of fat and meat during a single stroke of the relative movement between the dome and the scraper in the longitudinal direction of the judgment, and without the need to rotate the dome .

Skindet kan fastgøres til domen i strakt tilstand på en hvilken som helst passende måde, 5 og domen kan om ønsket understøttes ved begge sine ender. For at lette anbringelsen af skindet på og fjernelsen af skindet fra domen kan skindet anbringes omkring en fri, tilspidset endedel af domen, og skrabeindretningen kan bevæges i forhold til domen fra domens frie ende og langs dennes yderside. Da et skind, der er trukket af et pelsdyr, normalt har en muffe- eller poselignende form, kan anbringelsen af skindet på domen 10 blot bestå i, at det pose- eller muffelignende skind skydes ind over den tilspidsede frie endedel af domen, indtil skindet antager en tilstrækkeligt strakt tilstand.The skin may be attached to the dome in an extended manner in any suitable manner, and the dome may be supported at both ends thereof if desired. To facilitate the application of the skin to and the removal of the skin from the dome, the skin may be placed around a free, tapered end portion of the dome, and the scraper device may be moved relative to the dome from the free end of the dome and along the outside thereof. Since a fur pulled by a fur animal usually has a sleeve or bag-like shape, the application of the skin to the dome 10 may simply consist of the bag or sleeve-like skin being pushed over the tapered free end portion of the dome until the skin assumes a sufficiently stretched state.

Ved den foretrukne udførelsesform for fremgangsmåden ifølge opfindelsen er den relative bevægelse mellem domens skrabeindretning og domen en frem- og tilbagegåen-15 de bevægelse med et fremføringsslag, under hvilket skrabeindretningens skrabende kanter presses i eftergiveligt indgreb med skindets kødside, og et returslag, under hvilket skrabeindretningens skrabende kanter holdes fri af skindet. Skrabeindretningens indgreb med skindet under ffemføringsslaget udøver på dette en forskydningspåvirkning i retning af voksende tværsnitsarealer for domen, hvilket sikrer udspiling af skindet.In the preferred embodiment of the method according to the invention, the relative movement between the scraper device of the dome and the dome is a reciprocating movement with a feed stroke, under which the scraping edges of the scraper device are resiliently engaged with the flesh side of the skin, and a return stroke, during which the scraping device scraping edges are kept free of skin. The engagement of the scraper device with the skin during the five-stroke stroke exerts a displacement effect on it in the direction of growing cross-sectional areas of the dome, which ensures that the skin is flushed out.

2020

Skrabeindretningen kan være af en hvilken som helst type, og den kan fx omfatte knivlignende skrabere, der kan vibreres under brug. Ved en foretrukken udførelsesform omfatter skrabeindretningen imidlertid ruller med skrabende kanter på rullernes perifere flader, og konturen (set i rullernes aksialplan) af den perifere flade kan så være komple-25 mentær til konturen for domens tværsnit. Eksempelvis kan rullemes konturer være cirkelbuer, når dornen har et cirkulært tværsnit. Domen kan i stedet have et polygonalt tværsnit, og i dette tilfælde kan skrabeindretningen omfatte et antal miler, der svarer til antallet af polygonens sider, så at milerne i skrabeindretningen er indrettet til at ♦ samarbejde med hver sin af domens sideflader. De skrabende kanter på hver af milerne 30 kan så bestemme en i hovedsagen cirkulær cylindrisk eller en konisk flade.The scraper device may be of any type, and may comprise, for example, knife-like scrapers which can be vibrated during use. However, in a preferred embodiment, the scraper includes rollers with scraping edges on the peripheral surfaces of the rollers, and the contour (seen in the axial plane of the rollers) of the peripheral surface may then be complementary to the contour of the cross section of the dome. For example, the contours of the rollers may be circular arcs when the mandrel has a circular cross section. The domain may instead have a polygonal cross-section, and in this case the scraper may comprise a number of miles corresponding to the number of sides of the polygon so that the miles in the scraper are arranged to cooperate with each of the side surfaces of the dome. The scraping edges of each of the miles 30 may then determine a generally circular cylindrical or conical surface.

3 DK 156669 B33 DK 156669 B3

Rullerne kan bringes til at rotere således, at de skrabende kanter, der er i indgreb med domen eller det derpå anbragte skind, ved indgrebspunkteme bevæges i samme retning som retningen for den relative bevægelse mellem domen og skrabeindretningen, men eventuelt med en periferihastighed, der er forskellig fra den relative bevægelse. Ved den S foretrukne udførelsesform for fremgangsmåden ifølge opfmdelsen bringes milerne imidlertid til at rotere i retning modsat den relative langsgående bevægelse mellem domen og skrabeindretningen under fremføringsslaget, hvorved der opnås en forstærket skrabe-virkning.The rollers may be rotated such that the scraping edges which engage the dome or the skin placed thereon are moved at the points of engagement in the same direction as the direction of relative movement between the dome and the scraper, but optionally at a peripheral velocity that is different from the relative motion. However, in the preferred embodiment of the method according to the invention, the miles are rotated in the direction opposite to the relative longitudinal movement between the dome and the scraper device during the feed stroke, thereby obtaining an enhanced scraping effect.

10 Ved den foretrukne udførelsesform for fremgangsmåden ifølge opfindelsen har domens tilspidsede endedel endvidere et i hovedsagen rektangulært tværsnit, og endedelens tilspidsede form er tilpasset formen for det skind eller den pels, der skal behandles, fx minkskind.Furthermore, in the preferred embodiment of the method of the invention, the tapered end portion of the dome has a substantially rectangular cross-section, and the tapered shape of the end portion is adapted to the shape of the skin or coat to be treated, e.g., mink fur.

15 Den relative bevægelse mellem skrabeindretningen og domen kan frembringes enten ved, at skrabeindretningen bevæges, medens domen holdes stationær, eller ved bevægelse såvel af domen som af skrabeindretningen. Ved den foretrukne udførelsesform holdes skrabeindretningen imidlertid stationær, medens domen bevæges i forhold til denne.The relative movement between the scraper device and the dome can be produced either by moving the scraper while holding the dome stationary, or by moving both the dome and the scraper. However, in the preferred embodiment, the scraper device is held stationary while the dome is moved relative thereto.

20 Når det på domen anbragte skind har passeret skrabeindretningen, så at uønskede rester af fedt og kød er blevet fjernet fra skindet, kan dette gribes og under domens returslag holdes i hovedsagen ubevægeligt i forhold til skrabeindretningen, så at det behandlede skind fjernes fra domens frie endedel. Skindet kan fx fastholdes af børstehårslignende 25 organer, hvis frie ender indgriber med skindet og har en sådan skrå retning, at de virker som modhager, der hindrer skindet i at følge med domen under returslaget.20 When the skins placed on the judgment have passed the scraper so that unwanted grease and meat residues have been removed from the skin, this can be seized and held during the return of the judgment substantially untouched relative to the scraper so that the treated skin is removed from the free judgment. end portion. For example, the skin may be retained by bristle-like means whose free ends engage with the skin and have an oblique direction to act as barbs that prevent the skin from following the judgment during the return stroke.

Ved opfindelsen er der også blevet tilvejebragt et apparat til fjernelse af fedt og kød fra kødsiden af skindet eller pelsen fra et pelsdyr og af den art, som har en langstrakt dom 30 til understøtning af et derpå anbragt skind med kødsiden vendende udad, en skrabe-indretning med skrabende kanter, organer til at presse skrabende kanter på skrabeindretningen til anlæg mod kødsiden af det på domen anbragte skind, og organer til at bevæge 4 DK 156669 B3 domen og skrabeindretningen i forhold til hinanden i domens længderetning, og apparatet ifølge opfindelsen er ejendommeligt ved, at de skrabende kanter på skrabe-indretningen tilsammen danner en kontur, der er i hovedsagen komplementær til konturen for domens tværsnit.In the invention, there has also been provided an apparatus for removing fat and meat from the meat side of the skin or the fur of a fur animal and of the kind having an elongated mandrel 30 for supporting a skin placed thereon with the meat side facing outwards. means having scraping edges, means for pressing scraping edges on the scraping device for abutting the meat side of the skin placed on the dome, and means for moving the doming and the scraping device relative to each other in the longitudinal direction of the judgment, and the apparatus according to the invention is peculiar in that the scraping edges of the scraper together form a contour which is substantially complementary to the contour of the cross section of the judgment.

55

Ved opfindelsen er der yderligere blevet tilvejebragt en mile i form af et omdrejningslegeme til brug ved fremgangsmåden ifølge opfindelsen og/eller til brug i et apparat ifølge opfindelsen til fjernelse af fedt og kød fra kødsiden af et skind eller en pels fra et pelsdyr, mellem hvilken miles endeflader der med langs periferien indbyrdes ens 10 afstande forløber et antal fremspringende, skrabende kanter, som i hovedsagen ligger på en omdrejningsflade for milen, hvor hver af de skrabende kanter består af to dele, som hver udgår fra et sted i nærheden af hver sin af milens to endeflader i samme mlleakse-afstand og milen ifølge opfindelsen er særegen ved, at i det mindste de skrabende kanter er af et elastisk efrergiveligt materiale, fortrinsvis gummi eller plast, og mødes på 15 midten af milen med et fælles tværsnit, idet milens perifere flade og de derpå udformede skrabende kanter er i hovedsagen symmetriske om et centralt plan vinkelret på milens akse, og hver af de skrabende kanter er i hovedsagen V-formet dannende en stump vinkel divergerende i milens bearbejdningsretning. Rullen bringes så til at rotere i en sådan retning, at de frie ender af hver skrabende kant først kommer i indgreb med 20 skindet eller pelsen, hvorefter kontaktpunkterne mellem den skrabende kant og skindet forskydes langs den skrabende kant i retning mod dennes centrale kantdel. Dette bevirker, at skindet ikke blot strækkes i langsgående retning, men også trækkes i domens tværgående retning mod milens centrale symmetriplan.The invention further provides a mile in the form of a rotary body for use in the method of the invention and / or for use in an apparatus according to the invention for removing fat and meat from the meat side of a fur or fur from a fur animal, between which miles of end faces extending along the periphery 10 equal distances along a plurality of protruding, scraping edges, which are generally located on a circumferential surface of the mile, each of the scraping edges consisting of two portions, each starting from a location near each one of the two end faces of the mill at the same milling axis distance and the mill according to the invention is peculiar in that at least the scraping edges are of a resilient material, preferably rubber or plastic, and meet at the middle of the mill with a common cross-section, the peripheral surface and the scraping edges then formed are generally symmetrical about a central plane perpendicular to the axis of the mile, and each of the scraping edges are generally V-shaped forming a blunt angle divergent in the machining direction. The roller is then rotated in such a way that the free ends of each scraping edge first engage the skin or the fur, after which the contact points between the scraping edge and the skin are displaced along the scraping edge toward its central edge portion. This causes the skin not only to stretch in the longitudinal direction, but also in the transverse direction of the judgment towards the central plane of symmetry of the mile.

25 Opfindelsen vil i det følgende blive nærmere beskrevet under henvisning til tegningen, på hvilken fig· 1 set i perspektiv viser en udførelsesform for apparatet ifølge opfindelsen til behandling af minkskind, fig· 2 set i perspektiv viser dele af apparatet under et fremføringsslag for en dom, på hvilken der er anbragt et minkskind, 30 5 DK 156669 B3 fig. 3 illustrerer, hvordan minkskindet fjernes fra domen under dennes returslag, og fig. 4 set i perspektiv viser en af de i apparatet anvendte skraberuller.BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail below with reference to the drawing, in which: Fig. 1 is a perspective view of an embodiment of the appliance for treating mink skins; , on which is fitted a mink fur, FIG. 3 illustrates how the mink skin is removed from the dome during its return stroke, and FIG. 4 is a perspective view of one of the scraper rolls used in the apparatus.

5 Det i fig. 1-3 viste apparat har et stel eller stativ 10 med to parallelle, vandret forløbende førestænger 11. Bøsningsorganer 12, der omslutter førestængeme 11, er monteret på en slæde 13. Slæden 13 er også forbundet med stemplet i en pneumatisk cylinder 14, der er monteret på stativet 10 og strækker sig parallelt med førestængeme 11, og som er af den stempelstangsløse type. Den ene ende af en dom 15, der fortrinsvis er fremstillet 10 af træ, er fastboltet til en gaffelformet del 16, der er anbragt på den ene ende af en aksel 17, som er drejeligt monteret i en på slæden 13 monteret lejekasse 18. En på akselen 17 inde i kassen 18 monteret krave 19 har et fremspring 20, der er anbragt mellem et par med indbyrdes afstand anbragte stopknaster 21, der er udformet på indersiden af lejekassen 18’s bundvæg, og som tjener til at begrænse drejningsbevægelsen for akselen 15 17 og dermed også for domen 15 til en temmelig lille vinkel. Domen 15 har en øverste og en nederste, i hovedsagen trekantet flade 22 og to modstående, i hovedsagen rektangulære smalle sideflader 23. Ikke blot den øverste og nederste flade 22, men også sidefladerne 23 er tilspidset i retning mod domen 15’s frie ende 24. Størrelsen af og formen for domen 15’ s frie endedel må tilpasses 20 størrelsen af og formen for de skind eller 20 pelse 25, der skal behandles.5 The embodiment of FIG. 1-3 shows a frame or stand 10 with two parallel horizontally extending guide rods 11. Bushing means 12 surrounding the guide rods 11 are mounted on a carriage 13. The carriage 13 is also connected to the piston of a pneumatic cylinder 14 which is mounted on the rack 10 and extending parallel to the guide rods 11 which are of the piston rodless type. One end of a mandrel 15, which is preferably made of wood, is bolted to a fork-shaped part 16 mounted on one end of a shaft 17 pivotally mounted in a bearing box 18 mounted on the carriage 13. mounted on the shaft 17 inside the box 18, a collar 19 has a projection 20 disposed between a pair of spaced stop lugs 21, formed on the inside of the bottom wall of the bearing box 18, which serves to limit the rotational movement of the shaft 15 17 and hence also for the judgment 15 to a rather small angle. The dome 15 has an upper and a lower, generally triangular face 22 and two opposed, generally rectangular narrow side faces 23. Not only the upper and lower face 22, but also the side faces 23 are tapered towards the free end of the dome 15. of and the shape of the free end portion of the dome 15 must be adapted to 20 the size and shape of the skins or fur 25 to be treated.

En skrabeindretning omfatter to par ruller. Der findes således et par over for hinanden anbragte, lodrette ruller 26, der drives af elektromotorer 27, der hver især er monteret på en monteringsplade 28, som er svingbart anbragt omkring en svingningsakse 29.A scraper device comprises two pairs of rollers. Thus, there are a pair of opposite vertical rollers 26 driven by electric motors 27, each mounted on a mounting plate 28 pivotally disposed about a pivot axis 29.

25 Monteringspladerae 28 kan presses mod hinanden ved hjælp af pneumatiske cylindre 30.The mounting plates 28 can be pressed against each other by means of pneumatic cylinders 30.

På tilsvarende måde omfatter skrabeindretningen også et par over for hinanden anbragte . vandrette miler 31, der drives af elektromotorer 32, og disse elektromotorer 32 er monteret på monteringsplader 33, der kan svinges i forhold til stellet 10 omkring vandret anbragte svingningsakser 34. Pneumatiske cylindre 35, der påvirker monte-30 ringsplademe 33, kan presse de vandrette miler 31 i retning mod hinanden. Bortset fra de svingningsbevægelser, pladerne 28 og 33 kan foretage, er skrabeindretningen, som omfatter de to par miler 26 og 31, monteret stationært i forhold til stellet 10. Det 6 DK 156669 B3 lodrette og vandrette rullepar 26 og 31 er, som det bedst fremgår af Hg. 2 anbragt med en indbyrdes afstand i domen 15’s længderetning, idet de lodrette ruller 26 er anbragt nærmere ved slæden 13 end de vandrette ruller 31.Similarly, the scraper device also comprises a pair of opposite ones. horizontal miles 31 driven by electric motors 32, and these electric motors 32 are mounted on mounting plates 33 which can be pivoted relative to the frame 10 about horizontally arranged pivot axes 34. Pneumatic cylinders 35 affecting mounting plates 33 can press the horizontal miles 31 towards each other. Apart from the oscillatory movements the plates 28 and 33 can make, the scraping device, which comprises the two pairs of miles 26 and 31, is mounted stationary with respect to frame 10. The vertical and horizontal roller pairs 26 and 31 are at their best. appears in Hg. 2 spaced apart in the longitudinal direction of the dome 15, the vertical rollers 26 being located closer to the carriage 13 than the horizontal rollers 31.

5 Skrabeindretningen er omsluttet af et hus eller en afskærmning 36, hvoraf kun en del er vist i fig. 1. Dette hus 36 har en indgangsåbning 37 og en udgangsåbning 38, og disse åbninger, der ligger ud for domen 15, er i det mindste delvis dækket af bøjelige afskærmningsorganer 39, som omgiver åbningerne 37 og 38. Sugemundstykker 40, der er forbundet med en vakuumkilde (ikke vist) gennem vakuumledninger 41, er monteret 10 neden under og i nærheden af de to par 10 raller 26 og 31. Udgangsåbningen 38 fører gennem et savsmuldskammer 42, til hvilket der gennem en tilførselsledning 43 kan tilføres savsmuld eller et lignende stof.5 The scraper device is enclosed by a housing or shield 36, only a portion of which is shown in FIG. 1. This housing 36 has an inlet opening 37 and an outlet opening 38, and these openings adjacent to the dome 15 are at least partially covered by flexible shielding means 39 surrounding the openings 37 and 38. Suction nozzles 40 associated with a vacuum source (not shown) through vacuum lines 41, is mounted 10 below and in the vicinity of the two pairs of rails 26 and 31. The outlet opening 38 passes through a sawdust chamber 42, to which, through a supply line 43, sawdust or similar material may be fed .

Apparatet virker på følgende måde: 15 Når domen 15 befinder sig i sin i fig. 1 viste tilbagetrukne stilling, anbringes et skind 25 på domens frie endedel med sin inderside eller kødside vendt udefter. Apparatets funktion igangsættes ved, at man trykker på en knap på et kontrolpanel 44, hvilket bringer den pneumatiske cylinder 14 til at bevæge slæden 13 og domen 15 med det 20 derpå anbragte skind 25 gennem et fremføringsslag. Under domen 15’s fremføringsslag vil domens frie ende sammen med skindet 25 blive ført gennem indgangsåbningen 37, og når domen 15’s frie ende 24 når frem til det lodrette rallepar 26, vil disse ruller af motorerne 27 blive bragt til at rotere i en sådan retning, at de virker i retning af at modvirke domens fremføringsbevægelse, og rullerne 26 presses samtidigt mod domen 15’s 25 sideflader ved hjælp af de pneumatiske cylindre 30. Man kan vælge et ønsket anlægstryk ved at trykke på en passende knap på kontrolpanelet 44. Når domen 15’s frie ende 24 når frem til de vandrette ruller 31, bringes disse ruller også til at rotere ved hjælp af motorerne 32, ligesom de ved hjælp af de pneumatiske cylindre 35 presses mod den øverste og nederste flade 22 på domen med et udvalgt tryk. Dette anlæg mellem de 30 roterende ruller og kødsiden af det på domen 15 anbragte skind bevirker, at rester af kød og fedt fjernes fra skindets kødside, og det fjernede fedt og kød suges ind i suge-mundstykkerne 40, hvorved det løbende fjernes fra apparatet gennem vakuumledninger 7 DK 156669 B3 41. Da domen 15 i nogen grad kan drejes om sin længdeakse, kan domens drejningsstilling selv tilpasse sig stillingen for rullerne 26 og 31.The apparatus operates as follows: 15 When the dome 15 is in its in FIG. 1, a skin 25 is placed on the free end portion of the dome with its inside or meat side facing outward. The operation of the apparatus is initiated by pressing a button on a control panel 44, which causes the pneumatic cylinder 14 to move the carriage 13 and the dome 15 with the skin 25 placed thereon through a feeding stroke. During the delivery stroke of the dome 15, the free end of the dome together with the skin 25 will be passed through the entrance opening 37, and when the free end 24 of the dome 15 reaches the vertical roller pair 26, these rollers of the motors 27 will be rotated in such a way that they act towards counteracting the forward movement of the dome, and the rollers 26 are simultaneously pressed against the lateral surfaces of the dome 15 by the pneumatic cylinders 30. One can select a desired abutment pressure by pressing an appropriate button on the control panel 44. When the free end of the dome 15 24 reaches the horizontal rollers 31, these rollers are also caused to rotate by the motors 32, as well as by the pneumatic cylinders 35 being pressed against the upper and lower surfaces 22 of the dome at a selected pressure. This abutment between the 30 rotating rollers and the meat side of the skin placed on the dome 15 causes the remains of meat and fat to be removed from the meat side of the skin and the removed fat and meat are sucked into the suction nozzles 40, thereby continuously removing it from the apparatus through vacuum lines 7 DK 156669 B3 41. Since the judgment 15 can to some extent be rotated about its longitudinal axis, the rotational position of the dome can itself adapt to the position of the rollers 26 and 31.

Når det behandlede skind passerer gennem savsmuldskammeret 42, vil skindets fugtige 5 kødside blive forsynet med et lag savsmuld. De bøjelige skærmorganer 39 ved udgangsåbningen 38 kan omfatte stive børstehårslignende organer 45, der i nogen grad er rettet i retning af domen 15’s fremføringsslag. Disse børstehårslignende organer vil således ikke hindre skindet 25’s bevægelse gennem udgangsåbningen 38 under domen 15’s fremføringsslag. Men når domen har nået sin fremførte stilling, i hvilken domens frie 10 endedel med det derpå anbragte skind 25 er passeret gennem udgangsåbningen 38, standses domen 15’s fremføringsbevægelse. Domen 15 føres nu tilbage til sin i fig. 1 viste udgangsstilling ved hjælp af cylinderen 14’s stempel, der nu drives i modsat retning. Under dette returslag for domen vil de børstehårslignende organer 45 indgribe med det skrabede og med savsmuld forsynede skind 25 på lignende måde som modha- 15 ger, hvorved det behandlede skind trækkes af domen 15, som det er illustreret i fig. 3. Når domen 15 er blevet ført tilbage til sin i fig. 1 viste udgangsstilling, er den klar til at modtage endnu et skind, der skal behandles, og den ovenfor beskrevne operation kan gentages.As the treated skin passes through the sawdust chamber 42, the damp meat side of the skin will be provided with a layer of sawdust. The flexible screen means 39 at the exit aperture 38 may include rigid bristles-like means 45, which are directed in some direction toward the delivery stroke of the dome 15. Thus, these bristle-like organs will not impede the movement of the skin 25 through the exit aperture 38 during the judgment stroke 15. However, once the judgment has reached its advanced position, in which the free 10 end portion of the judgment with the skin 25 placed thereafter is passed through the exit opening 38, the judgment movement of the judgment 15 is stopped. The domain 15 is now returned to its in FIG. 1 from the cylinder 14's piston, which is now driven in the opposite direction. During this return to the judgment, the bristles-like members 45 will engage the scraped and sawdust 25 in a similar manner to the counterweight, whereby the treated skin is pulled by the judgment 15, as illustrated in FIG. 3. When the dome 15 has been returned to its in FIG. 1, it is ready to receive another skin to be treated and the operation described above can be repeated.

20 Hver af rullerne 26 og 31 har, som det bedst fremgår af fig. 4, i hovedsagen plane -endeflader 46 og en mellem disse endeflader forløbende perifer flade 47. Den perifere flade 47 har et antal med perifere indbyrdes afstande anbragte tænder 48 med skrabende kanter 49, der bestemmer eller ligger på en i hovedsagen cirkulær cylindrisk flade. Hver af de skrabende kanter 49 er i hovedsagen V-formede og danner en stump vinkel.Each of the rollers 26 and 31 has, as best seen in FIG. 4, generally plane end surfaces 46 and a peripheral surface 47 extending between these end faces. The peripheral surface 47 has a plurality of peripherally spaced teeth 48 having scraping edges 49 defining or lying on a generally circular cylindrical surface. Each of the scraping edges 49 is substantially V-shaped and forms a blunt angle.

25 De V-formede skrabende kanter 49’s toppunkter er beliggende i et symmetriplan, der står vinkelret på rullens akse. Set i tværsnit har milen et omrids, der minder om omridset af en rundsavklinge, og milen har en aksial boring 50 til optagelse af en drivende elektromotors drivaksel.25 The vertices of the V-shaped scraping edges 49 are located in a plane of symmetry perpendicular to the axis of the roller. In cross-section, the mile has an outline resembling the outline of a circular blade, and the mile has an axial bore 50 for receiving a driving electric motor drive shaft.

30 Rullen, der fortrinsvis er fremstillet af gummi, plastmateriale eller et lignende elastisk eftergiveligt materiale, bringes fortrinsvis til at rotere i den ved hjælp af en pil 51 i fig.The roller, which is preferably made of rubber, plastic material or a similar resilient resilient material, is preferably rotated in it by means of an arrow 51 in FIG.

4 angivne retning. Dette betyder, at det skind eller den pels, der behandles, først vil4. This means that the fur or coat being treated will first

Claims

A method of removing fat and meat from the skin or fur (25) from a fur animal, the skin with the meat side facing outwards being placed on an elongated dome (15) in the substantially extended state, after which a scraper (26, 31) with scraping edges (49) and the dome (15) are moved relative to each other in the longitudinal direction of the dome, while at least some of the scraping edges (49) of the scraper device (26, 31) are resting against the meat side of the skin, characterized in that there is used a scraper (26, 31) with scraping edges (49) which together determine a contour which is substantially complementary to the contour of the cross section of the court.

Apparatus for removing fat and meat from the meat side of the skin or fur (25) of a fur animal, which has an elongated mandrel (15) for supporting a skin (25) with the meat side facing outwards, a scraper device (26 , 31) with scraping edges (49), means (30, 35) for pressing scraping edges (49) on the scraper 15 for abutment against the meat side of the skin applied to the dome, and means (14) for moving the dome (15). and the scraper (26, 31) relative to one another in the longitudinal direction of the judgment, characterized in that the scraping edges (49) of the scraper (26, 31) together form a contour substantially complementary to the contour of the cross-section (15). . 20

Apparatus according to claim 2, characterized in that the dome (15) has a tapered free end portion on which the skin (25) can be placed.

Apparatus according to claim 2 or 3, characterized in that the moving means (14) are arranged to move the dome (15) and the scraping device (26, 31) back and forth relative to each other through a feed stroke and a return stroke, the pressing means (30, 35) is arranged to only press the scraper (26, 31) into engagement with the flesh side of the skin during the relative movement of the feed. 30 DK 156669 B3 ίο

Apparatus according to any of claims 2-4, characterized in that the scraping device comprises rollers (26, 31) having peripheral surfaces (47) on which the scraping edges (49) are formed and (15) tapered end portion has a polygonal cross-section with a plurality of sides corresponding to the number of rollers (26, 31) of the scraper device adapted to cooperate with each of the domes (22, 23) of the domes.

Apparatus according to claim 5, characterized in that the tapered end portion of the dome (15) has a rectangular cross-section and the scraper device has four rollers (26, 31). 10

Apparatus according to claim 5 or 6, characterized in that the rollers are arranged in pairs and each pair serves to engage with opposite side surfaces of the dome (15) and the roller pairs (26, 31) are spaced apart in the domes. longitudinal direction.

Apparatus according to any one of claims 2-7, characterized in that it has a stand (10) on which the scraper (26, 31) is mounted and that the moving means (14) are arranged to move the dome ( 15) longitudinally relative to the scraper device.

B3 is engaged with the free outer ends 52 of each of the scraping edges 49, and during the continued rotation of the roll, the two engagement points for each of the scraping edges will move towards the central plane of symmetry. As a result, the roller will tend to pull the skin toward this central plane. This relationship, in connection with the staggered placement of the two pairs of rollers 26 and 31, will cause the residues of fat and meat to also be removed from the portions of the skin 25 located along the edges of the dome 15. The miles used in the FIG. 1-3 of the two roller pairs can have different diameters of 10. Thus, in the embodiment shown in the drawing, the vertical miles 26 cooperating with the side faces 23 of the dome 15 have a diameter substantially smaller than the diameter of the horizontal miles 31 cooperating with the upper and lower faces of the dome 15. The rollers are preferably mounted on the shafts of electric motors 27 and 32 so that they can be easily released and replaced. In the presently preferred embodiment, the horizontal miles 31 have an axial length of 155 mm and the diameter of the circular cylindrical surface formed by the scraping edges 49 of the mile is 130 mm, the diameter of the axial bore 50 is 32 mm, the mile has seven teeth 48 with scraping edges 49, and each of the V-shaped scraping 20 edges forms an angle of 145 °. Each of the vertical miles 26 has a length of 85 mm, the diameter of the circular cylindrical surface determined by the scraping edges 49 is 65 mm, the diameter of the axial bore 50 is 17 mm, there are five teeth 48 with scraping edges. 49, and each of the V-shaped edges 49 forms an angle of 175 °. It will be appreciated that various modifications and modifications may be made to the embodiment shown in the drawing without departing from the scope of the invention. For example, the dome 15 need not have a rectangular cross-section, but it may have any other cross-sectional shape corresponding to the shape of the skin being treated. For example, the judgment may have a hexagonal cross-section, and the scraper may then comprise three pairs of miles spaced apart in the longitudinal direction of the judgment. DK 156669 B3 9

A roll for use in the method of claim 1 and / or for use in an apparatus according to any one of claims 2-8, especially claim 7, in the form of a rotary body for removing fat and meat from the meat side of a skin or fur. (25) from a furry animal, between which the end faces (46) of the roller extend along the circumferentially equal distances a plurality of protruding, scraping edges (49) which are substantially on a rotating surface of the mile, each of the scraping edges consisting of two parts, each projecting from a location in the vicinity of each of the two end faces (46) of the same milling distance, characterized in that at least the scraping edges (49) are of an elastic resilient material, preferably rubber or plastic and meet at the center of the roll with a common cross-section, the circumferential surface (47) of the mile and the scraping edges (49) formed thereon being substantially symmetrical about a central plane of symmetry perpendicular to the axis of the mile, and each of the scraping can ter (49) is generally V-shaped forming a blunt angle diverging in the machining direction.