EP0933432A2 - Dispositif pour l'écharnage des peaux - Google Patents

Dispositif pour l'écharnage des peaux Download PDF

Info

Publication number
EP0933432A2
EP0933432A2 EP99100864A EP99100864A EP0933432A2 EP 0933432 A2 EP0933432 A2 EP 0933432A2 EP 99100864 A EP99100864 A EP 99100864A EP 99100864 A EP99100864 A EP 99100864A EP 0933432 A2 EP0933432 A2 EP 0933432A2
Authority
EP
European Patent Office
Prior art keywords
air cushion
skin
knife roller
compensation chamber
receptacle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99100864A
Other languages
German (de)
English (en)
Other versions
EP0933432A3 (fr
EP0933432B1 (fr
Inventor
Horst Zäpfel
Erich Gabelmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0933432A2 publication Critical patent/EP0933432A2/fr
Publication of EP0933432A3 publication Critical patent/EP0933432A3/fr
Application granted granted Critical
Publication of EP0933432B1 publication Critical patent/EP0933432B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B1/00—Manufacture of leather; Machines or devices therefor
    • C14B1/02—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather
    • C14B1/04—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather using slicking, scraping, or smoothing-out cylinders or blades fixed on supports, e.g. cylinders, in a plane substantially at right angles to the working surface
    • C14B1/08—Fleshing, unhairing, samming, stretching-out, setting-out, shaving, splitting, or skiving skins, hides, or leather using slicking, scraping, or smoothing-out cylinders or blades fixed on supports, e.g. cylinders, in a plane substantially at right angles to the working surface in machines with flexible bands as bed supporting or counter-pressure elements

Definitions

  • the invention relates to a device for flesh removal of skins with an elastic, under pneumatic Overpressure and one of these Gap assigned, rotating knife roller, between which the skin is pulled through by means of a transport device becomes.
  • Dehairing and fleshing of the rawhide is common the first processing that the rawhide in the Tannery undergoes.
  • Depilation is essentially done through chemical treatment in strong alkaline medium, the so-called liming, in which the Skin with larger amounts of water and the necessary Chemicals is treated.
  • the skin swells spongy and the hair is chemically dissolved (gummed up), while the meat side, which consists of fat and Connective tissue exists, remains largely unaffected.
  • the skin becomes this spongy, swollen state placed on the meat removal machine with a revolving knife roller is equipped, the cutting run helically from the center on both sides.
  • a fixed one serves as a counter bearing for the skin Edition.
  • the helical cutting edges at the same time provide for the spreading and stretching of the skin.
  • the skin goes through the meat removal machine twice, namely from the center to both End up.
  • the so-called glue leather falls during the fleshing process which, in addition to the fat and connective tissue, the chemicals from the liming and water. This glue leather leaves process themselves exclusively into animal glues, for which is hardly needed today.
  • the skin has a three-dimensional topography and therefore has different thicknesses in its plane of extension, need to avoid skin injury Precautions are taken to ensure that these thickness differences be balanced in the working gap, whereby also an adaptation to the type of skin (veal, Cow or bull skin), the very different topographies have, on the other hand an adaptation to the Skin weight (size and thickness are in a certain Ratio) is required.
  • the edition is one thick-walled, reinforced rubber tube with compressed air filling formed, that on the opposite of the knife roller Side lies in several shell-like abutments that again via adjusting spindles for setting the working gap can be relocated.
  • the abutment is adjusted via the adjusting spindle the topography of the skin across the working direction.
  • the skins are pre-sorted Genus and weight necessary.
  • the machine must be reset. The construction effort is also here considerable and need to set up accordingly be taken.
  • the invention is based on the object of a device form for fleshing in such a way that either pre-treated or untreated raw hides without any risk of damage and inexpensively without waste and environmentally friendly to a tannable skin can be fleshed.
  • This object is achieved in that the skin overlay made of a thin-walled, highly flexible Air cushions and a comprehensive, highly flexible Tension band exists, and that the air cushion with a Pressure compensation chamber communicates.
  • the skin overlay a certain inner elasticity, but nevertheless one must have a sufficiently high resistance to deformation, sufficient for the cutting forces of the knife roller Opposing resistance while having greater thickness differences the skin, especially its topography across Direction of passage through the compliant or adjustable Abutments of the skin overlay were balanced.
  • the Invention goes another way in which the air cushion with the straps across them a total forms a highly flexible pad whose resistance to deformation determined solely by the internal pressure of the air cushion is what makes the skin overlay both locally available Differences in thickness, as well as the topography of the skin in and follow transversely to the direction of flow without delay can.
  • the invention Device is particularly possible, too freshly slaughtered skin to tannable, that is on the scar side is not hairy and also no significant internal elasticity across the skin level having.
  • the air cushion reacts sufficiently sensitive to local changes in thickness, on the other it offers sufficient proof to avoid missing inner compressibility of the skin a damage-free To allow fleshing. Due to the even and low normal forces and thus low frictional forces becomes the significantly higher coefficient of friction on the hair side the skin balanced without the addition of Water is needed.
  • the device according to the invention thus offers for the first time the possibility of the resulting fat and Obtaining connective tissue free of water and chemicals, so that it can be used in the same way, like other usable slaughterhouse waste.
  • the problematic Glue leather no longer accumulates, so everyone with this related problems such as storage, transportation and further processing come to an end. Handling and Transport are due to the reduction in weight the weight of the skin is simplified or less expensive.
  • the fleshed skin can be in perfect condition Condition immediately processed in the tannery be without the conventional processing sequence change is. However, fleshing is not required in the tannery and it can already in the first process, e.g. the Ashes, with a high skin weight and less Chemical consumption are worked.
  • the gap between this and the knife roller minimized become. It only needs to be so big that Do not touch the skin pad and knife roller anymore.
  • the skin overlay also fits in the edge area of the Skin very precisely on the edge contour and is in the edge area only a minimal gap between knife roller and Skin present, so that unlike all known Machines do not form fringes. It can therefore to the previously necessary personnel for the edge trimming be dispensed with and there will also be any waste avoided.
  • Tension band made from a slack sheet material. This ensures that the sheet material given by the internal pressure of the air cushion adapts without resistance, especially no folds, constrictions or the like arise. Because only the strap is subject to wear and tear from inexpensive Material can exist and also easily replaceable resource costs are also low.
  • the strap is under one by the Internal pressure of the air cushion determined traction. So that is ensures that the strap in connection with the Air cushion has a defined contour in the working gap.
  • the internal pressure of the air cushion can also be adjustable to the in conjunction with the strap Shape of the air cushion and thus the shape and width of the feed and working gap between the knife roller and skin support to vary, especially the inlet angle optimize a small value.
  • the air cushion can be at least on the working width the device a substantially circular cylindrical Have cross-section so that the machining on the Meat side is essentially linear.
  • the air cushion can also do one essentially have an oval cross-section so that the feed angle smaller and the work surface becomes a little wider.
  • the tension band on the skin facing Side have a smooth surface, in particular the coefficient of friction for freshly slaughtered skin to reduce to the hair side and on the addition of To be able to do without water.
  • An advantageous embodiment of the device draws is characterized in that the air cushion in a to Cutter roller open receptacle is arranged by the Tension strap is overlapped. This recording is designed that the air cushion limits the side of the Picked up in the direction of the knife roller and by the Tension strap is held. Furthermore, the receptacle is designed that they can deform the Air cushions allowed while deflating.
  • the receptacle has one Floor on which the air cushion is fixed, whereby in Area of air cushion setting a pneumatic Connection with low flow resistance between the Interior of the air cushion and the pressure compensation chamber is provided. If necessary, over the length of the Air cushion a variety of pneumatic connections in uniform arrangement can be provided to the flow resistance between air cushion and compensation chamber further reduce. Due to the low flow resistance in the pneumatic connection there is a delay-free one Pressure equalization and therefore also a delay-free one Deformation of the air cushion possible. The skin patch so immediately adjusts to the differences in thickness on. Also irregularities on the hair side, such as by swirling hair or also due to sticky manure appear from the skin patch balanced.
  • the air cushion is that the bottom of the intake is guided so that the depth of the Recording and thus between the floor and the strap existing space and thus also the shape of the air cushion can vary.
  • the bottom can be deformed and in its shape be adjustable, for example, transversely to the working direction is arched.
  • the pressure compensation chamber a multiple of the volume of the air cushion on.
  • the compensation chamber can be about ten times as large Own volume.
  • the one in the air cushion and in the pressure compensation chamber the prevailing overpressure can be between 0.5 and 5 bar. Practical experiments with freshly slaughtered skins have surprisingly shown that overpressure between 0.8 and 1.2 bar is completely sufficient.
  • the knife roller therefore has up to three times more knives than usual to even with strong local thickness differences the skin or if the skin is covered with manure, the advantages of Optimal use of air cushion. This results in at the same time an increase in performance.
  • a support roller 2 for stored the skin transport On a machine frame 1 is a support roller 2 for stored the skin transport, the circumference two Transport rollers 3 are assigned. Below the platen roller 2 is located on the machine frame 1 the total designated 5 skin pad, which is a powered Knife roller 4 is assigned. The platen roller 2 and the Skin pad 5 are pivoted so that they are the knife roller 4 and the transport rollers 3 moved away can be.
  • the skin overlay 5 is made up of an air cushion 6 and one this overlapping strap 7 is formed, the Air cushion 6 in the embodiment of FIG. 1 in has a substantially circular cylindrical cross section.
  • the Air cushion 6 consists of a thin-walled, highly flexible Material, as well as the tension band 7 made of a sheet material Made without any significant stiffness is.
  • the air cushion 6 is arranged in a receptacle 8, bounded by a bottom 9 and side walls and for Knife roller 4 is open. Towering in this direction the air cushion 6 the lateral limitation of the receptacle 8, which is also large enough to be disabled-free To allow deformation of the air cushion 6.
  • the air cushion 6 is otherwise only on the bottom 9 of the receptacle 8 fixed.
  • the air cushion 6 is overlapped by the tension band 7.
  • the tension band 7 Around the strap across the entire working width It is up to his two to give tension Longitudinal edges folded into a loop 10 into one ledge 11 extending across the entire width is.
  • Loops 10 is the strap 7 on the machine frame attached, the strips ensure that the through the air cushion 6 generated tensile stress over the entire Width is the same size.
  • the air cushion 6 is connected via pneumatic connections 12 in the area of the attachment points of the air cushion 6 am Bottom 9 with a pressure compensation chamber 13 in connection.
  • a pressure compensation chamber 13 in connection.
  • serve in the machine frame 1 installed hoses 14 large cross-section.
  • the air cushion 6 and the pressure compensation chamber 13 are standing under overpressure, which in connection with the strap 7 ensures that the air cushion 6 a controlled Has deformation resistance, the tension band 7 further ensures that the air cushion 6 is not in Cutting direction of the knife roller 4 can dodge.
  • the skin 15 is either by hand or by means of a Manipulator from above with the machine open the knife roller 4 and the removed skin support 5 are inserted, to about half of the raw skin below the later working gap depends. Then the Skin pad 5 and the platen roller 2 delivered, wherein between knife roller 4 and tensioning belt 7 an only extremely narrow gap is maintained.
  • By driving the Transport roller 3 is the skin 15 through the top Working gap pulled through and by means of the knife roller 4 adipose and connective tissue from the meat side of the Skin scraped.
  • the knives 16 of the knife roller 4 are in the drawing only indicated schematically.
  • FIG. 2 differs of that of Fig. 1 only in that the strap 7 by fillers 12 inserted into the loops 10 in the form cylindrical rods is shortened. This gives it Air cushions under the internal pressure essentially one oval cross section. At the same time the feed angle in Working gap is reduced and the width of the working gap enlarged.
  • the bottom 9 of the Arrange receptacle 8 displaceably in the machine frame, so that the depth of the receptacle 8 can be varied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
EP99100864A 1998-01-29 1999-01-19 Dispositif pour l'écharnage des peaux Expired - Lifetime EP0933432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803393 1998-01-29
DE19803393A DE19803393A1 (de) 1998-01-29 1998-01-29 Vorrichtung zum Entfleischen von Häuten

Publications (3)

Publication Number Publication Date
EP0933432A2 true EP0933432A2 (fr) 1999-08-04
EP0933432A3 EP0933432A3 (fr) 2000-05-17
EP0933432B1 EP0933432B1 (fr) 2003-06-11

Family

ID=7856002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99100864A Expired - Lifetime EP0933432B1 (fr) 1998-01-29 1999-01-19 Dispositif pour l'écharnage des peaux

Country Status (2)

Country Link
EP (1) EP0933432B1 (fr)
DE (2) DE19803393A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181585A (zh) * 2011-04-07 2011-09-14 扬州扬宝机械有限公司 一种通过式挤水机的辅助伸展装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203594C (fr) *
GB240472A (en) * 1924-09-24 1926-03-04 Alexander Kehrhahn Machine for treating hides, skins, leather and the like
DD115603A1 (fr) * 1974-11-25 1975-10-12
FR2376212A1 (fr) * 1976-12-28 1978-07-28 Mercier Georges Procede et machine de mise en oeuvre du procede pour echarner les cuirs et peaux
US4428210A (en) * 1982-06-04 1984-01-31 Mills Fur Farm Supply, Inc. Fleshing machine
ES8700326A1 (es) * 1985-12-17 1986-10-16 Cots Tana Esteban Procedimiento para la extraccion de la capa de elementos fi-liformes de una piel animal completa
DE9206363U1 (de) * 1992-05-12 1992-07-30 Alco-Food-Machines GmbH, 4505 Bad Iburg Schneidemaschine zum Aufschneiden von flachen Fleischstücken

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102181585A (zh) * 2011-04-07 2011-09-14 扬州扬宝机械有限公司 一种通过式挤水机的辅助伸展装置
CN102181585B (zh) * 2011-04-07 2013-03-27 扬州扬宝机械有限公司 一种通过式挤水机的辅助伸展装置

Also Published As

Publication number Publication date
DE59905897D1 (de) 2003-07-17
DE19803393A1 (de) 1999-08-05
EP0933432A3 (fr) 2000-05-17
EP0933432B1 (fr) 2003-06-11

Similar Documents

Publication Publication Date Title
DE1660091A1 (de) Maschine fuer die Gerberei und Weissgerberei zum Spalten von Leder und Haeuten
DE60220033T2 (de) Vorrichtung und verfahren zur auftrennung der gummierung eines förderbands
EP1578201B1 (fr) Ensemble laminage pour la viande et procede de traitement de la viande
DE69522000T2 (de) Verfahren und vorrichtung zum schneiden von fisch
EP0933432B1 (fr) Dispositif pour l'écharnage des peaux
DE2936166A1 (de) Schabe-(schneide-)-maschine mit schneidezylindern fuer felle und spaltleder und vorrichtung fuer den automatischen ausgleich des verschleisses der messer der schneidewalze
DE3344284A1 (de) Vorrichtung zur behandlung von fleisch oder schinken, insbesondere von kochpoekelwaren
EP0870581B1 (fr) Machines à refendre avec une lame à ruban
DE823063C (de) Strohzerkleinerungs- und Reibevorrichtung
DE19903308A1 (de) Vorrichtung zum Spalten von Häuten
DE69521343T2 (de) Maschine zum wegschneiden von unerwünschtem gewebe von fischfilets
DE2921067A1 (de) Verfahren und vorrichtung zum ausscheiden von materialstuecken aus einem materialband
DE555341C (de) Schneidvorrichtung fuer Zuckerrohr-Erntemaschinen
DE2227169A1 (de) Maschine zur bearbeitung von haeuten
DE619527C (de) Verfahren zum Strecken oder Weichmachen von Haeuten, Fellen, Leder oder aehnlichen Stoffen und Maschine zur Ausfuehrung des Verfahrens
DE10120534B4 (de) Fleischwalze mit Folie, Vorrichtung zum Bearbeiten von Fleischstücken und Verfahren zum Behandeln von Fleisch
DE2536772A1 (de) Maschine zum abschaben von ledern oder haeuten
AT21705B (de) Maschine zur Bearbeitung von Häuten und Fellen.
DE2756758A1 (de) Verfahren zum abschaben von fellen und haeuten sowie vorrichtung zur durchfuehrung des verfahrens
DE1660095C3 (de) Falz- und Egalisiermaschine für Leder, Häute und dergleichen
DE102004005436B3 (de) Maschine zum Entbeinen von Geflügelschenkeln
DE237369C (fr)
DE62181C (de) Vorrichtung zum Ablösen der Ramiefaser
DE2336951A1 (de) Verfahren und vorrichtung zur kontinuierlichen bearbeitung von leder
DE34302C (de) Maschine zum Ausrupfen der starken i vorstehenden Haare aus Biber und anderen Fellen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17P Request for examination filed

Effective date: 20001109

RBV Designated contracting states (corrected)

Designated state(s): DE IT

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE IT

REF Corresponds to:

Ref document number: 59905897

Country of ref document: DE

Date of ref document: 20030717

Kind code of ref document: P

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040121

Year of fee payment: 6

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050802