Classifications

• • A—HUMAN NECESSITIES
  • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
  • A22C—PROCESSING MEAT, POULTRY, OR FISH
  • A22C21/00—Processing poultry
  • A22C21/0069—Deboning poultry or parts of poultry

Definitions

• the invention relates to a device for removing a breast cartilage from a poultry breast carcass.
• the breast cartilage (“keel bone”), which in poultry forms the extension of the sternum, is needed by the pharmaceutical industry as a raw material for the production of chondroitin sulfate and sodium hyaluronic acid and other medically valuable amino acids.
• Poultry cutting is largely automated in Europe and is largely done by machines in which, in a first step to separate the breast fillet from the poultry body, the complete chestpiece with bone (sternum, breast cartilage and ribs) is separated and the chestpiece is clamped in another cutting machine , In it, the chestpiece is pulled through a conveyor through the decomposition device. An extraction of the breast cartilage by hand is impossible at the commonly used conveying speeds, for example about 15 km / h.
• the object of the invention is to propose a device with which the breast cartilage can be separated from a chestpiece without having to slow down the conveying speed of the chestpiece or having to recapture the chestpiece in another device.
• This object is achieved by a device for removing a breast cartilage of a poultry breast carcass, with a transport device for moving the breast carcass along a rectilinear, especially horizontal trajectory in a fixed orientation, wherein a median plane of the breast carcass is aligned perpendicular to the trajectory, a stationary arranged cutting device with a transversal cutting edge for performing a transversal cut passing through the thoracic cartilage extending in a transverse section plane perpendicular to the median plane, the transverse section plane including an transverse plane of the carcass perpendicular to the median plane forming an angle of up to 30 ° and a frontal cutting edge for execution a frontal section passing through the thoracic cartilage extending in a frontal section plane perpendicular to the median plane, the frontal
• the two cutting edges, transversal and frontal cutting can cut off the breast cartilage in a defined manner from the sternum without undesirable contact between the transverse and / or frontal cutting edge and the transport device or other parts such as meat or bone of the breast carcass takes place.
• transverse and frontal planes are perpendicular to the median plane of the breast carcass and perpendicular to each other, although the transversal and frontal sectional planes do not necessarily have to be perpendicular to each other.
• the transverse cutting edge and / or the frontal cutting edge is flat (are). Furthermore, it is preferably provided that the transverse cutting edge and / or the frontal cutting edge is rectilinear (are).
• the transverse cutting edge preferably runs in the transverse section plane.
• the further transversal cutting edge preferably runs in the transverse section plane.
• the frontal cutting edge preferably runs in the frontal sectional plane.
• transverse cutting edge and / or the frontal cutting edge is (are) arranged at an acute angle to the movement path, in particular at an angle of up to 10 °, 15 ° or 20 ° thereto.
• the transverse cutting edge and the frontal cutting edge can emanate from a tip pointing counter to the direction of movement. It may be provided that an initial region adjacent to the tip (up to 10%, 20% or 30% of a total length, beginning with the tip, of the respective cutting edge of the transversal cutting edge and / or the frontal cutting edge is obtuse. and frontal cutting included tip angle may be between 5 ° and 30 °, preferably between 10 ° and 20 °.
• the invention preferably provides that the transversal cutting edge is assigned a further transverse cutting edge facing this, for carrying out a further transverse cut, in particular in the transversal cutting plane.
• the further transversal cutting edge can be designed as a rotating cutting blade or as a rigidly held cutting blade, for example as a cutting edge arranged at an acute angle with the transverse cutting edge in the direction of movement of the breast carcass.
• a mechanical driver and / or scraper for moving a breast cartilage completely or partially severed from the breast carcass in the direction of movement of the breast carcass and / or for stripping the transversal cutting edge is arranged above and / or below the transverse cutting edge.
• the driver or scraper may be coupled to a drive element arranged above the transversal cutting edge which is movable by the transport device or the breast carcass moved by the transport device.
• the drive element and the driver each have radially extending arms and are rotatably mounted.
• a scraper can be provided which scrapers the transverse cutting edge or further transverse cutting edge after each cutting operation, expediently counter to the direction of movement of the breast carcass.
• the invention further relates to a method for removing a breast cartilage from a poultry breast carcass, in particular using a device according to the invention, wherein the breast carcass is moved along a rectilinear, in particular horizontal trajectory and a median plane of the breast carcass is aligned perpendicular to the trajectory, with a stationary arranged cutting device a pair of cutting edges is provided, and by cooperation of the moving breast carcass with the stationary cutting device, a transverse cut is made through the chest cartilage extending in a transverse section plane perpendicular to the median plane, the transverse section plane subtending an angle with a transverse plane of the breast carcass perpendicular to the median plane at 30 °, and a frontal incision through the breast cartilage is made, arranged in a plane perpendicular to the median plane
• the frontal section plane extends at an angle of up to 30 ° with a frontal plane of the breast carcass arranged perpendicular to the median plane and perpendicular to the transverse plane,
• the transversal section can preferably be executed in a sagittal direction running horizontally forward.
• the frontal cut can preferably be made to run vertically downwards.
• transverse section and the frontal section extend from a common starting point or a common starting line.
• transversely extending transverse cross-section further transverse section is performed, which may extend in the same plane as the transverse section.
• Transverse section, frontal section and further transverse section can be performed simultaneously.
• transverse section, frontal section and further transverse section is carried out progressively in proportion to a progress of movement of the breast carcass, in particular in the ratio or at a speed of 5%, 10%, 15%, 20%, 30%, 40% or 50% of a transport speed of the breast carcass.
• FIG. 2 shows a front view of the fixing element according to FIG. 1, FIG.
• FIGS. 1 and 2 show a top view of the fixing element according to FIGS. 1 and 2,
• Fig. 4 is a perspective view obliquely from the front of the fixing element of FIG. 1 to
• Fig. 5 is a perspective view obliquely from the front of the fixing element of FIG. 1 to
• FIG. 6 shows a side view of the fixation element with the poultry breast carcass held thereon
• FIG. 8 shows a perspective schematic representation of a cutting device before penetration into a breast cartilage of a breast carcass
• FIG. 9 shows the cutting device of FIG. 8 immediately after penetration into the chest cartilage, FIG.
• 11 shows a perspective view of the cutting device
• 12 shows a perspective view of a further embodiment of the invention
• Fig. 13 is a plan view of the embodiment of Fig. 12 shows.
• FIGS. 12 and 13 show a front view in the direction of movement of the embodiment according to FIGS. 12 and 13,
• FIG. 15 is a bottom view of the embodiment of FIGS. 12-14; FIG.
• FIG. 16 is an exploded view of essential elements of the embodiment of FIGS. 12-15 and FIG. 16
• Fig. 17 is a plan view of the slitter of the embodiment of Figs. 12-16.
• FIGS. 1 to 7 a transport device for holding and moving poultry breast carcasses as well as the orientation and fixation of a poultry breast carcass on the transport device will first be explained.
• Fig. 1 shows a side view of a fixing element 2 for a dashed line indicated poultry breast carcass 4 with a guide portion 6 and a fixing section 8.
• the guide portion 6 has a cross-sectionally T-shaped undercut guide groove 10, with which the fixing element 2 formed on a corresponding cross-section Guide rail of a transport device can be pulled to transport the held on the fixing portion 8 poultry breast carcass 4 successively to different processing stations.
• the poultry breast carcass 4 can be inserted between a hook-shaped projection 12 and an angled, suitably contoured contact surface 14 of the fixing section 8 and by means of a projection 12 in the direction of the projection extendable fixing pin 16 (Fig. 4) to fix a form-fitting and low-play, as Fig. 7 in comparison to Fig. 2 shows.
• a median plane 20 of the poultry breast carcass 4 extends vertically and in the longitudinal direction of the fixing element 2, that is centrally through the contact surface 14, the fixing pin 16 and the projection 12.
• Da the median plane of the poultry breast carcass is the plane which runs as a plane of symmetry centrally through the spine and sternum, this orientation at the same time a vertical alignment of breastbone 22 and breast cartilage 24 is ensured.
• the median plane 20 is evidently perpendicular to a movement path 26 along which the fixing element 2 advances in the transport device in a direction of movement 28.
• FIG. 6 again clearly shows, in a side view, the arrangement of breastbone 22 and breast cartilage 24, which is located immediately adjacent to a lower portion of contact surface 14.
• a cutting device 30 fixedly arranged with respect to the transporting device and the moving fixing elements 2 is positioned such that the poultry breast carcasses which are fixed to the fixing elements 2 moved along a predetermined movement path inevitably engage the cutting device, in which the breast cartilage is selectively separated without otherwise affecting the breast carcass in any way.
• the cutting device 30 has at least two cutting edges, namely first a transverse cutting edge 32, which in the illustrated embodiment runs parallel to one Transverse plane 34 (see also Fig. 7) of the breast carcass 4 is arranged, and further a frontal cutting edge 36 which is arranged parallel to a frontal plane 38 of the breast carcass 4.
• the transverse plane 34 extends perpendicular to the median plane 20 and, in the exemplary embodiment illustrated, extends substantially horizontally.
• the frontal plane 38 also extends perpendicular to the median plane 20 and also perpendicular to the transverse plane 34 and extends vertically in the illustrated embodiment. Since the median plane 20 extends perpendicular to the movement path 26 and the direction of movement 28 of the carcass, the transversal and frontal planes 34, 38 each extend parallel to the movement path 26 and the direction of movement 28.
• the transverse cutting edge 32 does not extend exactly in the transverse plane 34 but in a transverse section plane running at an angle to it For example, a non-horizontal but oblique transition 40 (FIG. 6) between sternum 22 and chest cartilage 24 can be followed more accurately.
• the transverse cutting edge 32 extends in a plane parallel to the movement path 26, so that during the passage of the breast carcass on the stationary cutting edge no height offset occurs in a direction transverse to the transport movement.
• the transverse cutting edge 32 is disposed at an acute angle t with respect to the movement path 26 and movement direction 28.
• the frontal cutting edge 36 likewise does not have to run exactly in the frontal plane 38, but rather can be arranged in a frontal sectional plane running at an angle thereto, likewise with the aim of compensating for certain deviations from growth or fixation of individual breast carcasses.
• the frontal cutting edge 36 as well as the transverse cutting edge 32 is arranged at an acute angle f to the movement path 26 or direction of movement 28 of the breast carcass 4.
• Transversal cutting edge 32 and frontal cutting edge 36 are arranged so that they converge substantially at one point, starting from a tip 44, in the area of which they are comparatively blunt.
• the tip 44 is positioned to penetrate into the thoracic cartilage or between the thoracic cartilage and fixation element at the level of the transition 40 between the sternum and the thoracic cartilage, such that from this point the transverse cutting edge 32 forms a substantially horizontal section along the transition 40 in the direction 42 and the frontal cutting edge 36 can perform a substantially vertical section between breastbone and chest cartilage in the direction 43.
• the blunt formation of the cutting in the region of the tip causes the penetration of the tip initially no cutting action occurs, but the chest cartilage is partially lifted by the wedge action of the tip or from the fixing element and the subsequent cutting process is facilitated and improved.
• Fig. 9 shows this first phase of penetration of the tip between the thoracic cartilage and sternum or rib bone.
• Fig. 10 shows the further cutting course, now the sharp areas of transversal and frontal cutting come into effect.
• a further transversal cutting edge 50 is advantageously provided, which is arranged in the plane of the transverse cutting edge 32 and is also aligned at an acute angle to the movement path 26, but in the opposite orientation, so that between the two transverse cutting edges 32, 50 on is formed tapering, narrowing gap, in which the chest cartilage moved in due to the movement of the breast carcass 4 and at the end he is cut off defined.
• FIG. 11 shows a plan view of a cutting device 30 according to the invention, wherein the transversal and frontal cutting edges 32, 36 arranged at an acute angle to the movement path 26, the tip 44 and the further transverse cutting edge 50 can be seen. Dashed lines also indicate a mechanical driver 52 with arms 54 below the transversal cutting edges 32, 50, the purpose of which is to move the essentially or completely severed breast cartilage in the direction of movement 28 when passing a breast carcass, so that no congestion arises in the region of the cutting device.
• the driver 52 may be rotatably connected to a above the transversal cutting edge 32 arranged rotatable drive element, which also has one or more radially extending arm (s), which or is to be taken (each) by a passing breast carcass (are).
• FIGS. 12 to 17 which in many respects corresponds to the embodiment explained above, so that the same reference numerals are used for the same elements.
• a transversal cutting edge 32 and a further transversal cutting edge 50 arranged in the same plane are provided which are arranged at an acute angle of less than approximately 20 ° to each other and at equal angles to the direction of movement of the arriving breast carcasses or to the longitudinal direction of the guide rail 11 are.
• the position of the median plane 20 is illustrated, which extends perpendicular to the plane of representation centrally through the fixing element 2 and perpendicular to the (horizontal) movement direction 28.
• the median plane 20 is also indicated as a surface lying in the plane of representation, the transverse cutting edge 32 and the further transverse cutting edge 50, not separately designated, run in a transverse section plane 35 which is arranged perpendicular to the median plane 20.
• the transverse section plane 35 may include an angle ts of up to 30 ° with the transverse plane 34, which is defined by the geometry of the breast carcass 4 and generally runs horizontally, in the present case about 5 to 10 °.
• the frontal cutting edge 36 extends in a frontal sectional plane 39, which is arranged perpendicular to the median plane 20 and with the frontal plane 38, which is defined by the geometry of the breast carcass 4 and perpendicular to the transverse plane 34, in the illustrated example, vertical, an angle fs of up to 30 °, in this case about 5 to 10 °.
• the transverse cutting edge 32 and the frontal cutting edge 36 depart from the tip 44.
• all the cutting edges 32, 36 and 50 are mounted on a rectangular cutting body 60 having an approximately horizontal leg 62 on which the transverse cutting edge 32 and the further transverse cutting edge 50 are mounted, and an approximately vertical outgoing therefrom Leg 64 to which the frontal cutting edge 36 is attached.
• the tip 44 protrudes counter to the direction of movement 28.
• All cutting edges are designed as exchangeable cutting plates or blades, which are easily exchangeable fixed by means of screws to the blade body 60 fixed clamping plates.
• FIG. 16 shows this for the frontal cutting edge 36, which is formed as a cutting plate 66, which is held interchangeable by means of a clamping plate 68 and screws 70 on the vertical leg 64, and the transverse cutting edges 32, 50.
• the position The respective cutting plate is precisely defined by a recess in an outer edge of the respective leg, for example by a recess 72 in the vertical leg 64th
• an upper scraper 74 and a lower scraper 76 are rotatably held on a scraper shaft 78 rotatably mounted perpendicular to the transverse section plane 35.
• an actuating lever 80 is further rotatably mounted, which is pivoted upon arrival of a fixing element 2 and a breast carcass 4 through this and thereby the scrapers 74, 76 entrains, so that these above and below the transverse cutting edge 32 and the other transverse cutting edge 50th be moved along and initially in the direction of movement 28 past them.
• the scraper 74 and / or the scraper 76 perform a mimicking function as in the first embodiment in order to move the breast cartilage along the cutting edges and prevent them from getting caught.
• a spring-loaded pressure cylinder 82 is articulated, which moves the operating lever 80 after passing a fixing element 2 or a breast carcass 4 in the starting position (in clockwise direction in Fig. 13) until the actuating lever 80 abuts against a cutting body fixed stop 84.
• the scrapers are moved after passing through the breast carcass counter to the direction of movement 28 and strip the transversal and further transversal cutting again.
• Fixation element (transport device) t angle between 32 and 28

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• 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)

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Citations (4)

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• 2009
  • 2009-12-17 DE DE200920017070 patent/DE202009017070U1/de not_active Expired - Lifetime
• 2010
  • 2010-12-17 US US13/516,286 patent/US8845402B2/en active Active
  • 2010-12-17 ES ES10805679.7T patent/ES2544630T3/es active Active
  • 2010-12-17 EP EP10805679.7A patent/EP2512256B1/de active Active
  • 2010-12-17 JP JP2012543472A patent/JP5806228B2/ja active Active
  • 2010-12-17 DK DK10805679.7T patent/DK2512256T3/en active
  • 2010-12-17 BR BR112012014698-0A patent/BR112012014698B1/pt active IP Right Grant
  • 2010-12-17 CN CN201080057025.5A patent/CN102781243B/zh active Active
  • 2010-12-17 WO PCT/DE2010/001487 patent/WO2011072660A1/de not_active Ceased

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