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
  • A22C17/004—Devices for deboning meat
• • A—HUMAN NECESSITIES
  • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
  • A22B—SLAUGHTERING
  • A22B5/00—Accessories for use during or after slaughtering
  • A22B5/0017—Apparatus for cutting, dividing or deboning carcasses
  • A22B5/0052—Severing the head or the jaw of a carcass, slaughterhouse operations on animal heads
• • 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
  • A22C17/02—Apparatus for holding meat or bones while cutting

Definitions

• the invention relates to a method and a device for boning animal heads, in particular pig heads.
• Interventions on the heads of slaughtered animals in order to separate bones, the rind, the muscles of the jowls, the meat of the head, the tongue and the brain are carried out manually using fairly archaic means requiring a certain skill of the operator, a lot of physical energy and a fairly long time, without guaranteeing the quality of the work performed.
• 0011563 having for object an apparatus for immobilizing the head of a meat shop, separated from the body, intended to facilitate the work of separation of the bones and the edible parts, comprising a first part engaging the front part of the head and a second part engaging the occipital part of the head, said parts being able to rotate around a common axis and to approach each other, as well as means for spacing the lower jaw.
• This means does not allow boning of whole heads in a very short time, by unskilled personnel.
• the object of the present invention is to remedy these drawbacks.
• This invention as it is characterized, solves the problem of creating a device facilitating the execution, by unskilled personnel, of all the boning operations for an animal head. complete from the separation of the rind to the extraction of the brain, through the separation of the muscles of the jowls and the tongue, reducing to a strict minimum the physical effort and the attention required of it .
• the method according to the invention is mainly characterized in that it consists in ensuring the mechanical gripping of the head by the snout and the cervical bones, after having presented the latter lower jaw at the top, in ensuring the mechanical lifting or manual lower jaw, to take the tongue, to perform.r the removal of lean parts of the fat and rind during a controlled mechanical rotation of the head, to ensure the mechanical splitting of the head after ensuring the return of the latter to the initial position, to mechanically ensure the downward articulation of the two split half-parts, to take the brain and to continue the articulation until the residual bones fall onto a device ensuring their elimination.
• the grip of the head is obtained by exerting a force of approximation on one of the organs ensuring the grip, in particular on that bearing on the snout, while that resting on the cervical bones is held fixed longitudinally.
• the lean parts, the fat and the rind are removed by • uprooting in two parts after having first placed the head with the skull upwards and split the scalp longitudinally over its entire length, with the mask peeling off with a knife for a few centimeters to facilitate removal.
• the articulation of the two split i-parts is obtained by exerting a mechanical separation force between the two cervical bones of the head.
• the device permitting the application of this process consists e-ssentially of a turntable comprising, on its front face, two articulated arms used by cams, each provided with a half-shaft comprising at its end a half-shell taking the shape of one of the cervical bones of the head, of a longitudinal tightening device free in rotation, taking the shape of the snout of the head, of an articulated jack whose end of the rod is equipped with a hook intended for tearing off the lower jaw of the head, of a retractable mechanical splitting device and of a device ensuring the separation of the two articulated arms carrying the half-shells for gripping the head by the cervical bones of this one.
• the longitudinal tightening of the head is obtained by axial displacement, under the action of a jack, of the device resting on the snout the said jack actuates the snout holder device by means of a lever combined with a parallelogram Speak clearly.
• the system for tearing off lean parts, fat and rind corresponding to the preferred application method of the invention, consists of two pneumatic pincers, the recoil of which is ensured by cables, one of the ends of which is fixed to the stripping pliers and the other of which is made in the groove of a freewheel throat pulley whose rotation is ensured by a jack controlled by the operator.
• the device ensuring the separation of the two articulated arms consists of two cams, located behind the plate, each connected to an operating arm of the half-shafts carrying the shells through the intermediary of the hinge axis thereof, returned to one another by springs and a ver n with which the t ge is equipped a roller bearing slide ensuring the articulation of the arms by pressing on the operating cams of these i.
• the articulation of the maneuvering arms of the half-shafts carrying the grippers is ensured by a jack whose end of the rod actuates a frame inside which are fixed arms rollers ensuring the spacing of the actuating cams of the actuating arms of the half-shafts carries half-shell when the frame moves in one direction and the recall of these one towards the other when the frame moves in the opposite direction, under the action of the jack.
• the splitting device consists of two jaws, each provided with a blade of particular profile, maneuvered by means of a jack and of a system comprising two levers, connected by a rod, each combined with an articulated parallelogram.
• One of these levers is connected, by one of its ends, to the rod of the jack via a yoke and a hinge pin, while the other is connected to the body of the jack by means of a fork and articulation axes.
• the approximation of the upper lever, connected to the cylinder rod with respect to the articulation fork of the lower lever, is li ited by adjustable stops.
• the profile of the blades of the splitting device is determined so that the penetration of the upper blade is limited to the internal wall of the skull when the corresponding jaw of the splitting device is pressed against the pala s of the head, then that the opposite blade continues to penetrate the cranial vault until the corresponding jaw rests.
• the profile of each of the blades and of the splitting jaws is determined so that the penetration of the blades is stopped before the thread of the latter reaches the brain.
• the jack used for pulling out the lower jaw is articulated, in the plane of vertical symmetry of the device, relative to the frame of said device.
• the hook which is fitted with the rod of the lifting cylinder, consists of a square whose end of the horizontal branch is provided with a lug.
• the exit and re-entry of the tear-off cylinder rod are controlled by means of a lever located on the vertical branch of the tear-off hook.
• the rotation to the left and to the right of the plate carrying the levers for the semi-gripping shells is controlled by means of a lever actuated by one of the operator's knees.
• the axis XX * of rotation of the gripping system of the head is tilted forward relative to the work table.
• the splitting device is retracted by means of an articulated arm moved by a jack.
• the splitting device is retracted by means of slides and a slide moved by a jack.
• FIG. 1 represents an overall perspective view of the device
• FIG. 2 shows a side view, by ielle of the machine
• FIG. 3 represents a front view of the gripping and spacing device
• FIG. 4 represents a schematic view of the device showing the arrangement of the main organs
• FIG. 5 represents a side view of the device for splitting the heads.
• FIG. 6 represents an overall perspective view of an alternative embodiment
• Figure 7 shows the alternative embodiment of the system for operating the aeti onment arms of the half-shafts carrying half-shell gripping lles.
• Figures 1 to 5 of embodiment of the disposit f show a boning device for heads of pork essentially comprising a work table 1 surmounted by a frame 2 to which the jacks 3, 4 and 5 are connected, respectively serving to drive in rotation a plate 6, supporting two articulated arms 7 provided with i-shafts 8 shell holders 38, when actuated, by means of a slide 9 provided with rollers 10, cams 11 returned by a spring 12, ensuring the spacing of the articulated arms 7 and when the jaws are torn off lower by means of a hook 13 fitted with a control lever 14.
• the front end of the work table 1 supports a gripper of the snout consisting of a rotating track 15 supported by an articulated parallelogram consisting of two links 16 and 17, one of which 17 is connected by an axis 18 and a yoke 19 to the rod 20a of a jack 20.
• an articulated arm 21 supporting a device 1 splitting consisting essentially of d them jaws 22 and 23, each equipped with a blade 24 or 25, connected by means of a link 26 and two articulated parallelograms, consisting respectively of a small link 27 and of a link 28 connected to the rod 29a of a jack 29 by means of a yoke 30 and a pin 31 and a small link 32 and a fork lever 33 the ends of the fork of which are connected to the jack 29 by hinge pins 34; the bringing together of the lever 28 and the fork lever 33 being limited by a spacer of adjustable length 39.
• the gripping of the heads of pig 37 is obtained by the mobile snout holder 15 and the half-shells 38a and 38b equipped with half-fingers 36a and 36b then joined together.
• Each of the half-shells 38a and 38b reproducing the relief of one of the cervical bones of the head 37 and bearing on them; the finger 36 penetrating into the cartilage situated between these two cervical bones, with a view to the subsequent spacing after splitting, while the snout-holder 15 grips by longitudinal displacement under the action of a jack 20.
• the gripping system is returned to its initial position in order to perform the splitting operation which is carried out by bringing the splitting device into the plane of symmetry of the assembly by action on the support arm 21.
• the jaws 22 and 23 are brought together then by means of a jack 29 in order to obtain a splitting in two parts allowing the brain to be removed.
• the blades 24 and 25 and the blade-holder jaws 22 and 23 have a particular profile and their approximation system is made floating in order to obtain, after limited penetration of the upper blade 25 in the less hard part, the limited penetration of the blade 24 in the hardest part.
• the profile of the blade holder jaws 22 and 23 and of the blades 24 and 25 is determined so that the splitting is carried out without damaging penetration inside the cranial cavity.
• the spacing operation is carried out by exiting the rod of the jack 4 and descending the slider 9 provided with rollers 10a and 10b, which by bearing and rolling on the cams 11a and 11b, causes L 'spacing thereof and, therefore, half -coqui l 38a and 38b and half-fingers 36a and 36b through the arms 7a and 7b and their axes of articulation.
• the operation of spreading from top to bottom, the two half-parts of the head is stopped as soon as a sufficient spacing is obtained to allow the removal of the brain by the operator.
• the brain removal being carried out, the spacing is continued until the fall of the two head half-parts on the work table, from where it is eliminated by the operator to be evacuated.
• the rod of the jack 4 is retracted so that the cams 11a and 11b can come together under the action of their return springs 12a and 1b until the contact is brought back into contact.
• the ascent of the slide takes place at a height sufficient to allow free rotation of the plate 6 under the action of the jack 3 in order to bring the latter back in the gripping position for a new head.
• the recoil of the snout holder 15, under the action of the jack 20, takes place during the operation of removing the bone parts, so that a new grip can be undertaken as soon as the plate is returned to the gripping position.
• the axis XX 'of rotation of the gripping system is inclined towards the front of the work table.
• the device is completed by two pneumatic pincers 40 biased backwards and upwards by cables 41, passing through the pediment 42 of the switchboard by passers-by 43 , the opposite end of which is fixed in the groove of a freewheel grooved pulley whose rotation is ensured by a jack controlled by the operator (not shown).
• the operator after having split the scalp in two and peeled off
• the mask on each side with a knife, for a few centimeters can he obtain
• the immediate and simultaneous removal of the lean parts of the fat and the rind by pinching the parts mask removed beforehand with the pneumatic pincers 40 then by ordering the withdrawal of the latter towards the pediment 42 of the table from which the torn off parts can then be easily released by simple opening of the pneumatic pincers 40.
• the articulation of the arms 7 for operating the half-shafts 8 carries half-shells 38 is obtained by means of cams 43 whose spacing is ensured by two rollers 44 and 45 located at the ends of a Y-shaped arm 46 and the connection of which is ensured by two rollers 47 and 48 located at the end of the arms 49 and 50;
• the arms 46, 49 and 50 being integral with a frame 51 fixed to the end of the rod 52 of a jack 53 controlled by the operator.
• the operating steps of the device are semi-automatic at operator control to allow the operator to achieve maximum productivity.
• the device described above is intended for boning pig heads but it could offer the same advantages over other animal heads subject to a particular adaptation, in particular at the level of the profile of the blades and the jaws of the splitting.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=9350037

Family Applications (1)

Country Status (5)

Families Citing this family (4)

Family Cites Families (4)

• 1987
  • 1987-04-09 FR FR8705174A patent/FR2613586A1/fr not_active Withdrawn
• 1988
  • 1988-04-08 WO PCT/FR1988/000175 patent/WO1988007820A1/fr not_active Application Discontinuation
  • 1988-04-08 AU AU16221/88A patent/AU1622188A/en not_active Abandoned
  • 1988-04-08 EP EP19880903280 patent/EP0311659A1/de not_active Withdrawn
  • 1988-04-08 JP JP50349188A patent/JPH01503516A/ja active Pending

Non-Patent Citations (1)

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