Classifications

• • A—HUMAN NECESSITIES
  • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
  • A22C—PROCESSING MEAT, POULTRY, OR FISH
  • A22C17/00—Other devices for processing meat or bones
  • A22C17/12—Apparatus for cutting-off rind

Definitions

• the invention relates to a device for removing a surface layer of animal muscle tissue, in particular a layer enclosing the skin of the fillets of fish, with a revolving skinning roller which is designed to be easy to grip on its outer surface and with a pressure shoe provided with a pressing surface opposite the outer surface of the skinning roller.
• a revolving skinning roller which is designed to be easy to grip on its outer surface and with a pressure shoe provided with a pressing surface opposite the outer surface of the skinning roller.
• which z. B. against the force of a spring against the outer surface of the skinning roller displaceably mounted and in particular is provided with a receiving pocket for receiving a blade-like skinning knife.
• Such devices are known in practical use and also in printed form. Such a device is described for example in DE-PS 2 049 353.
• a fixed knife blade inserted into the pressure shoe is used, the pressure surface being at a short distance and equidistant from the skinning roller or its outer surface and the cutting edge of the
• the lateral surfaces of the skinning rollers are therefore provided with longitudinal grooves in which the fillet can be embedded with its tail end and thus get under the pressing surface.
• a slice cutting machine which is used for skinning fish fillets.
• the fillet is fed to a band knife lying on a feed belt, which lies opposite the support surface.
• a pressure roller which consists of soft rubber and is wrapped by an endless press belt, is arranged just in front of its cutting edge.
• the desired cutting result cannot be achieved with this machine either, since neither the arrangement of the band knife over the feed belt designed as a wire mesh belt, nor the undefined system by the press belt and the pressure roller enable the fillets to be fed to the band knife with a flat surface.
• a skinning machine for fish fillets is known from US Pat. No. 2,738,545, in which a mesh belt is used as a support surface for the fish fillets, which is opposite a band knife.
• a pressure device is effective just in front of the cutting edge and above it, which has in its effective area a series of spring-loaded pulleys lying next to one another, over which hold-down belts are guided in the form of V-belts, which transmit the pressure to the fish fillet.
• this device is also not suitable for achieving the desired cutting precision, which ultimately also applies to the skinning machine according to DE-AS 2 254 284, which as Pressure medium uses a variety of spring-loaded slats, which acts on the fillet via a flexible apron just before a band knife.
• a device comprising a feed element, at least one driver element, at least one blade and at least one pressure element.
• driver element is designed as a cylindrical roller.
• the lateral surface of the driver element is provided with longitudinal grooves which are spaced apart essentially in parallel.
• a development according to the invention provides that the longitudinal grooves have an incline of 2 ° to 15 °, but in particular 4 °.
• the advantage here is that at any time, especially when using multi-course arrangements, conveying or taking the fillet is guaranteed, which contributes to the gentle skinning of the fillet.
• the pressure element is rotatably mounted.
• a further development according to the invention provides that the pressure element has at least one pressure roller at one end. Another development according to the invention provides that the pressure element has at least one magnet at its other end.
• the pressure element has at its other end at least one iron core communicating with the at least one magnet or an opposite pole magnet.
• the feed element has an endlessly circulating belt.
• the fillets are advantageously fed through the feed element obliquely from above onto the driver element.
• the inclination of the feed element is in a range of 0 to 45 degrees to the horizontal. It has been found that particularly advantageous results in the range of 25 to 35 degrees.
• the feed element has file retention elements, so that the inclination of the feed element z. B. can assume an inclination of 60 degrees.
• the filter retention elements are designed as openings in the band-like feed element that communicate with a vacuum space.
• the object is achieved in that a method is created that uses one of the devices described above.
• Pressure surface from the outer surface of the skinning roller or for the limitation of the working gap between these elements are provided.
• this allows the basic position of the pressure surface to be opposite the lateral surface of the skinning roller is chosen entirely from the point of view of a safe gate, on the other hand the lift path of the pressure shoe is limited.
• the guide slot receiving the knife blade is formed on the one hand by the back surface of the pressure shoe and on the other hand by a cover, this at least one guide element has, which penetrates the guide slot and protrudes into a long hole-like opening in the knife blade. To allow easy replacement of the knife blade.
• a trouble-free start and sequence of the skinning process is ensured by the fact that the lateral surface of the skinning roller is provided with longitudinal grooves which extend essentially along the jacket lines.
• a magnet in the pressure element it is ensured for the critical phase of capturing the fillet, in particular in the tail area, which has many tendons, that the full counterforce acts on the tail area during the capture, so that the fillet is securely captured. Since the fillet is very thin in the tail area, the full counterforce acts due to the small deflection of the rotatably mounted pressure element.
• Fig. 1 shows a section through the skinning device
• FIG. 2 shows a front view of the skinning device according to FIG. 1
• the outlet-side deflecting roller 9 of an endless feed belt 5 and a skinning roller 3 are mounted and driven in a suitable manner in the same direction, rotating.
• the skinning roller 3 is provided on its outer surface 10 in a known manner with longitudinal grooves 11.
• the lateral surface 10 of the skinning roller 3 is juxtaposed in the region of its running side with a pressure shoe with a pressing surface whose radius of curvature essentially corresponds to that of the lateral surface 10 of the skinning roller 3.
• the pressing shoe which extends over the entire length of the latter, can be displaced from the skinning roller 3 about an axis against the force of a spring and is supported in its basic position by means of an adjustable stop with respect to the gap width between its pressing surface and the lateral surface 10.
• the opposite swivel path is limited with a further stop.
• the blade 1 clings to the contour of the entraining roller 3, as can be seen in FIG. 1, leaving a defined gap through which the skin 2 of the fish fillet 8 is removed during the skinning.
• the pressure element 4 is around
• Pinch roller drive shaft 13 rotatably mounted so that the force acting on the magnet 6 by means of the iron core 7 is transmitted in a lever-like manner by means of the pinch roller 12 to the outer surface 10 of the skinning roller 3. If the fish fillet 8 now reaches the area of the entrainment roller 3 via the feed belt 5, the entire fish fillet 8 is pressed against the entrainment roller 3 by the rotatably mounted pressure element 4. The fish fillet 8 now deflects the pressure element 4 about its pivot point against the magnetic force generated by the interaction of magnet 6 and iron core 7 due to its spatial expansion.
• the longitudinal grooves 11 are shown in FIG. 2, whereby they both run parallel to one another on the lateral surface and, in an alternative exemplary embodiment, can be arranged with a pitch in the form of a multi-start thread.
• a fillet to be skinned is placed on the outer surface 10 of the revolving skinning roller 3 with the skin side lying on and the tail end ahead by means of the feed belt 1 and is conveyed further by the latter.
• the tail end is embedded in the longitudinal grooves 11 of the lateral surface 10 and thus passes under the cutting edge of the knife blade 1 and shortly thereafter with the parts of the skin already loosened into the gap between the pressing surface 7 and the lateral surface 10, which leads to a safely promoting attack leads to the cut skin.
• the pressure shoe experiences a buoyancy force which, after overcoming the force of the spring, causes the pressure surface to slide on the inner surface of the tough skin and to carry the knife blade 1 with its cutting edge at a distance from the surface Shell surface 10 brings, which corresponds to the thickness of the skin to be separated.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Zoology (AREA)
• Food Science & Technology (AREA)
• Processing Of Meat And Fish (AREA)
• Meat, Egg Or Seafood Products (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7876206

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Citations (12)

Family Cites Families (1)

• 1998
  • 1998-08-01 DE DE1998134866 patent/DE19834866A1/de not_active Withdrawn
• 1999
  • 1999-07-10 DE DE1999181450 patent/DE19981450B4/de not_active Expired - Lifetime
  • 1999-07-10 WO PCT/EP1999/004857 patent/WO2000007450A1/de active Application Filing
• 2001
  • 2001-01-10 DK DK200100034A patent/DK176470B1/da not_active IP Right Cessation
  • 2001-01-24 NO NO20010431A patent/NO331730B1/no not_active IP Right Cessation
  • 2001-01-31 IS IS5834A patent/IS2569B/is unknown
  • 2001-02-01 SE SE0100293A patent/SE518638C2/sv unknown

Patent Citations (12)

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