JP4209363B2 - Meat carcass cutting method - Google Patents

Description

The present invention includes a pretreatment process for primary dismantling such as cutting of a head and legs of a meat carcass and visceral extraction in a warm atmosphere, and a cooling storage process for cooling and storing the meat carcass after the primary dismantling process When, regarding the disconnection process how the more becomes meat carcasses large dividing step of performing a large division processing after primary dismantling cooling the stored the meat carcasses in cold atmosphere.

In deboning and releasing a meat carcass such as a pork carcass, as shown in Patent Document 1 (Japanese Patent Laid-Open No. 2001-120265), the head and legs are cut and visceral in a warm atmosphere. After primary dismantling, etc., the meat carcass after the primary dismantling treatment is cooled and stored, and then the meat carcass that has been cooled and stored is subjected to large-division processing such as spine removal and tibial bone removal in a cold atmosphere. It is carried out.
FIG. 7 shows a procedure for deboning and spreading the conventional pork carcass.

In FIG. 7, in the semi-clean zone 100 maintained in a warm atmosphere at a predetermined temperature, a primary disassembly process such as residual hair treatment, tail cutting, head cutting, foot cutting, and visceral extraction is performed, and then maintained in a warm atmosphere at a predetermined temperature. In the clean zone 101 having a higher cleanliness than the semi-clean zone 100, the pork carcass is stored in a cooled state after being subjected to the remaining steps of the primary dismantling process such as splitting, trimming, and branch washing.
Next, in a cold atmosphere maintained at a low temperature of the same temperature level as the above-mentioned cold storage, shoulder and shoulder deboning and shaping after deboning, such as shoulder loin removal, tibial bone removal, scapular bone removal, humeral bone removal, etc. , Thigh deboning and removal after debonation, such as hipbone removal and thighbone removal, as well as a large division process consisting of loin loosening treatment such as fin removal, rib removal, and loose rose separation and subsequent shaping .

Further, Patent Document 2 (Japanese Patent Application Laid-Open No. Hei 11) discloses a cutting apparatus for cutting and separating a meat part and a bone part from a meat carcass in the deboning and separation processing of a meat carcass such as a pork carcass as described above. -155474) is provided.
FIGS. 8A and 8B show the configuration of such a cutting device. FIG. 8A is a perspective view of the main part of the ring cutter, and FIG. 8B is an enlarged perspective view of the blade part of the ring cutter. In such a technique, as shown in FIGS. 8A and 8B, the blade tip portion 02 of a ring-shaped cutter 01 that is rotationally driven around a rotation axis and formed in a cylindrical shape concentric with the rotation axis. A plurality of thin blades 03 formed at equal intervals along the circumferential direction, each blade 03 is provided with a guide surface 04 curved on the inside thereof, and when the bone portion is cut, the bone portion is It is configured so as to avoid contamination of the meat part by feeding it into the blade 03 along the guide surface 04.

JP 2001-120165 A JP-A-11-155474

In the conventional deboning and loosening method of meat carcass as shown in FIG. 7 and Patent Document 1, residual hair treatment, tail cutting, head cutting, foot cutting, visceral extraction, dorsal split, After the primary disassembly process such as trimming, branch washing, etc., the meat carcass is cooled and stored, and then in a cold atmosphere, shoulder loin removal, tibial bone removal, scapular bone removal, humerus bone removal, hipbone removal It is configured to perform large division processes such as femur removal, fin removal, rib removal, spine removal, and loose rose separation.
That is, in this conventional technique, among the deboning process included in the large division process, cutting of the bone and meat parts by a cutter, tibial removal, spine removal, hipbone removal, etc., which are difficult operations are difficult to separate. the process since it is adapted to apply in cold atmosphere of a low temperature, since the cut portion between the bone and the meat portion of the meat carcasses is hardened due to low temperatures, the bone part and the meat This makes it difficult to cut and separate the parts, increasing the number of steps for the deboning process, and requiring a large number of deboning workers.

Moreover, in the cutting apparatus for meat carcass shown in Patent Document 2 , blades provided at equal intervals along the circumferential direction at the blade tip portion of the ring-shaped cutter are thin-walled with a guide surface curved inwardly. Therefore, when the blade hits a hard bone part, the blade is easily damaged.
Further, when machining the blade at the blade edge portion, it is necessary to process a curved guide surface at the time of the outer shape machining of the blade, so that the number of processing steps of the ring cutter increases.
And so on.

Therefore, in view of the problems of the conventional art, the present invention provides a method for cutting a meat carcass that can facilitate the deboning process in the meat carcass and reduce the number of deboning work steps and the number of workers in the deboning work. Is the first purpose.
The second object of the present invention is prolongation to Rukoto the life of the ring-shaped cutter to increase the strength of the formed blade on the end of the cutting edge portion of the ring-shaped cutter provided the cutting processing method It is in.

The present invention achieves such an object, and includes a pre-processing step of performing primary disassembly such as cutting of the head and legs of a meat carcass and excision of viscera in a warm atmosphere, and the meat carcass after the primary dismantling process. and storing the cooling storage process cooling, cooling the stored processed more becomes meat carcasses large dividing step of performing at least a portion of a large division processing after the primary slaughter the meat carcass in cold atmosphere In the method
Divided into a division process in which a large division process after the primary dismantling process is performed in a hot atmosphere and a division process in a cold atmosphere after the cold storage,
The division process performed in the hot atmosphere includes a first process for performing a pre-deboning process including a split carcass, a tibial side meat process, and an abdominal fat stripping process on the meat carcass, and the first process. A second process to later deboning of the hipbone, tibia and spine removal;
The dividing process performed in a cold atmosphere for the meat carcass stored in the cold storage is distributed to the body, shoulders, thighs and loin and rose parts, and the corresponding process is performed for each of the loose parts. Preferably, the division process performed in the warm atmosphere is performed in a clean zone having a higher cleanliness than a zone in which the meat carcass is subjected to a primary dismantling process .

  In this invention, preferably, in the thermal atmosphere, as a pre-process of the deboning process, after performing a fin process, a neck process as a tibial side meat process, and an abdominal fat stripping process in this order, the deboning process As processing, a acetabular sawing process, a tailbone raising process, a hipbone removing process, a spine sawing process, a tibia removing process, and a spine removing process are performed.

Further, in such invention, preferably, in said heat atmosphere, as a pre-step of the deboning process, white extraction process of viscera, the first-order slaughter of the red product extraction process belly fat stripping treatment and viscera subjected, hipbone further Sewari, after performing the first processing consisting of the previous step deboning process consists of the neck process as fin processing Ri及 beauty tibia aside meat processing, after the deboning process (first process As a second process for removing the bone and spine , the acetabular sawing process, the tailbone raising process, the hipbone removing process, the spine sawing process, the tibia removing process, and the spine removing process are performed. .
Furthermore, in this invention, it is preferable to perform an acetabular sawing process, a tibial bone removing process, a tailbone raising process, and a spine removing process as the deboning process in the thermal atmosphere.

  According to this invention, after performing the pre-processing process which performs primary dismantling, such as head and leg cutting | disconnection of a meat carcass, internal organ extraction, etc. in a warm atmosphere, among the deboning processes included in a large division process, a cutter Cutting large bones such as spine removal, tibial bone removal, hip bone removal, etc., which require a lot of processing man-hours. The part can be softened by heat. As a result, the meat carcass after the large-size deboning process in a warm atmosphere is stored in a cold state. In the cool atmosphere, the small-size removal such as shoulder loin removal process, arm process, etc. in the large division process is performed. Only bone processing needs to be performed.

  Therefore, according to this invention, the cutting site between the bone part and the meat part in the meat carcass is softened, and the bone part and the meat part can be easily separated. It is not necessary to perform such a large deboning process in the atmosphere, and only a small deboning process that can relatively easily cut and separate the bone part and the meat part is performed in a cold atmosphere. Work in later processes in the atmosphere will be easier. Thereby, the man-hour for the deboning process can be reduced, and the number of workers for the deboning work can be reduced.

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According to a third aspect of the present invention, in the cutter used for the large-division processing performed in the thermal atmosphere, the end portion of the blade tip portion formed in a cylindrical shape concentric with the rotation axis is placed in the circular shape of the blade tip portion. A blade having a constant thickness (t) from the peripheral surface and having a triangular planar shape along the circumferential direction is equidistantly spaced along a circumferential direction of the blade edge portion via a clearance portion of a predetermined volume. A plurality of ring-shaped cutters are used.

According to the present invention, a triangular blade having a constant thickness (t) from the circular inner peripheral surface is attached to the end of the blade tip portion formed in a cylindrical shape concentric with the rotation axis. Since a plurality of blades are formed at equal intervals along the circumferential direction of the blade edge portion, each blade formed at the end of the blade edge portion has the same thickness (t) as the cylindrical blade edge portion from the circular inner peripheral surface. ), And the strength of the blade is increased in each step compared to that formed on a thin blade having a curved guide surface as in Patent Document 1, thus extending the life of the ring cutter. it can.

Furthermore , because the plurality of blades are formed with relief portions having a predetermined volume in the circumferential direction, the meat pieces after cutting are discharged after passing through the relief portions during the deboning process for separating the meat portion and the bone portion. Therefore, the cutting resistance during the deboning process is reduced, and the deboning processability is improved.

According to the present invention, cutting of bone parts and meat parts with a cutter, separation of large parts such as spine removal and tibial bone removal, which require a large number of processing steps, is difficult in a high temperature thermal atmosphere. The cutting site can be softened with heat and applied, and only a small deboning process in the large division step is performed in a cold atmosphere.
This makes it possible to soften the cut portion between the bone part and the meat part in the meat carcass during the large-size deboning process, and to easily separate the bone part and the meat part, and in a cold atmosphere. Then, it is only necessary to perform the accessory deboning process that can relatively easily cut and separate the bone part and the meat part. Therefore, the work in the subsequent process in the cold atmosphere becomes easier, the man-hours for the deboning process can be reduced, and the number of workers for the deboning work can be reduced.

According to the invention of claim 3 , each blade formed at the end of the cutting edge portion of the ring cutter is formed from the circular inner peripheral surface to the same thickness (t) as the cylindrical cutting edge portion. it becomes possible, the strength of the blade as compared to those formed on thin blades having a curved guide surface as in the prior art increases at each stage, Ru can extend the life of the ring-shaped cutter.
Furthermore, during the deboning process that separates the meat part and the bone part, the cut pieces of meat can be discharged after passing through the relief parts provided on the plurality of blades. Bone workability is improved.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this example are not intended to limit the scope of the present invention only to specific examples unless otherwise specified. Only.

FIG. 1 is a work flow diagram showing a first example of a deboning and disassembling procedure of pork carcass of a pork carcass (meat carcass) according to an embodiment of the present invention, and FIG. 2 is a flowchart of the deboning and disassembling procedure. FIG. 3 is a work flow diagram illustrating a third example of the deboning and disassembly process procedure, and FIG. 3 is a work flow diagram of a spine removal work portion.
4A and 4B show the structure of the ring cutter of the cutting apparatus according to the embodiment of the present invention, in which FIG. 4A is a cross-sectional view along the cutter axis, FIG. 4B is a view taken along the arrow A in FIG. It is an enlarged view (B arrow view in (B)) of a blade. FIG. 5 is a side view of the cutting device, and FIG. 6 is an operation explanatory view of the cutting device provided with the ring cutter.

In FIG. 1 which shows the 1st example of the deboning of the pork carcass which concerns on the Example of this invention, and a separation processing procedure,
The pork carcass carried into the semi-clean zone 100 held in a warm atmosphere of a predetermined temperature is subjected to primary disassembly processes such as residual hair processing, tail cutting, foot cutting, visceral extraction, head drop, etc. in the semi-clean zone 100. After being applied, it is carried into a clean zone 101 that is maintained in a warm atmosphere at a predetermined temperature and has a higher cleanliness than the semi-clean zone 100.
In the clean zone 101, the steps before the deboning process such as trimming, splitting the back, fin processing, neck processing as tibial side meat processing, abdominal fat stripping processing, branch washing, finishing processing, etc. are performed in this order on the pork carcass. Apply.

Next, the pork carcass is subjected to osteoclast sawing, tailbone raising, hipbone removal, spine sawing, tibial bone removal in a deboning treatment zone 102 included in the clean zone 101 in a thermal atmosphere at a predetermined temperature. After performing a deboning process such as spine removal, a cleaning process is performed.
The pork carcass subjected to the cleaning process is cooled to a predetermined low temperature and stored in a cold storage. The pork carcass that has been refrigerated is subjected to the following processing in the large division zone 103 that is maintained at a low temperature that is the same temperature level as that of the refrigerated storage.
For the shoulder (arm) shoulder line, shoulder and shoulder removal, and post-bone shaping are performed, such as shoulder loin removal, spare removal, scapula removal, and humerus removal. In the thigh (thigh) line, bone removal of the thigh such as removal of the lower leg bone and removal of the femur and shaping processing after the bone removal are performed. In the loin / rose line, processing of the loin bulk part such as fin removal, loin bulk separation, and rib removal, and shaping processing after the treatment are performed.

In the second example of the pork carcass deboning and disassembling process shown in FIG. 2, in the semi-clean zone 100, tail amputation, foot amputation followed by extraction of white organs, stripping of abdominal fat, and red organs In this order, in the clean zone 101, trimming, splitting the back, fin processing, neck processing as the tibial side meat processing, and subsequent trimming processing are performed, and branch cleaning and subsequent finishing processing in the first example are performed. Omitted.
In this way, the excision time for removing the bone (oval saw) can be shortened as compared with the first example, and further, the excision position at the time of deboning is stable.
Other steps are the same as those in the first example.

Further, in the third example of the deboning and disassembling process of the pork carcass shown in FIG. 3, the osteoclast is inserted in the warm atmosphere in the first and second examples, the tail bone is raised, and the hip is removed. Instead of deboning such as spine insertion, cervical bone removal, spine removal, etc., the pork carcass is subjected to acetabular sawing, tibia removal, tailbone raising, spine removal, etc. Apply. Reference numeral 104 denotes a spine round processing unit.
In this way, there are advantages that the deboning process time can be shortened compared to the first and second examples, the excision position at the time of deboning is stabilized, and further, the pretreatment is less.
Other steps are the same as those in the first example.

  Therefore, according to the deboning of pork carcass in this embodiment, the disposing method, after performing the pre-processing step of performing primary dismantling such as head and leg cutting of the pork carcass, visceral extraction in a warm atmosphere Of the deboning process included in the large segmentation process, cutting of bone and meat with a cutter, separation process is difficult and requires many processing steps such as acetabular removal, spine removal, tibia removal, etc. A large-size deboning process can be performed by softening the cut portion with heat in a high-temperature heat atmosphere.

As a result, the pork carcass after being subjected to the large-size deboning process in a warm atmosphere is cooled and stored, and in the cool atmosphere, shoulder loin removal, spare removal, scapula removal, humerus in the large division process Deboning of arms and shoulders such as removal, and thigh deboning such as removal of the lower thigh and femur, and small deboning such as fin removal, loin separation, and rib removal. If you do.
Therefore, the cut part between the bone part and the meat part in the pork carcass is softened, and the bone part and the meat part can be easily separated. It is not necessary to perform a deboning process, and it is only necessary to perform a small deboning process that can relatively easily cut and separate a bone part and a meat part in a cold atmosphere. Work in the process becomes easier. Thereby, the man-hour for the deboning process can be reduced, and the number of workers for the deboning work can be reduced.

Next, in FIG. 6 which shows the use condition of the cutting apparatus provided with the ring cutter used for the deboning of the pork carcass shown in FIGS. 1-3, and the dissemination process, 6 is a pork carcass, 200 is the ring cutter 1 Is a cutting device. As will be described in detail later, the cutting device 200 is configured by mounting a ring cutter 1 and a motor 2 for driving the ring cutter 1 on a cutter body 3. Reference numeral 4 denotes a gripping part for an operator to grip at the time of cutting work.
At the time of deboning and disassembling of the pork carcass 6, deboning and disintegrating are performed while moving the ring cutter 1 in the direction of the work line 1 z.

In FIG. 5 showing the details of the cutting device 200, 3 is a cutter main body, 1 is a ring cutter 1 attached to an end of the cutter main body 3, and 1 is a ring cutter 1 driving attached to the upper portion of the cutter main body 3. Motor.
The ring cutter 1 is mounted such that its rotational axis 1y is perpendicular to the center 3y of the cutter body 3. Reference numerals 4 and 5 denote gripping portions for the operator to grip at the time of cutting work. One of the gripping portions 4 is mounted on the end of the cutter body 3 opposite to the ring cutter 1 in the direction of the center 3y of the cutter body 3, and the other 5 is attached to the center portion of the cutter body 3 in a direction perpendicular to the center 3y of the cutter body 3 to facilitate the cutting operation by the ring cutter 1.

  4 (A) and 4 (B) showing the details of the ring cutter 1, the ring cutter 1 is formed in a cylindrical shape concentric with the rotation axis 1y and is pitched along the circumferential direction at the tip 12 of the tip. A plurality of blades 11 are formed at equal intervals at an angle β. The ring cutter 1 is fitted into the cutter body 3 by fitting the support portion 14 into a support hole (not shown) of the cutter body 3 and screwing the screw portion 13 into the screw hole (not shown) of the cutter body 3. Fixedly supported.

Further, the blade 11 of the ring-shaped cutter 1 has a constant thickness t from the circular inner peripheral surface 12a of the blade edge portion 12 with the height h of the blade from the end of the cylindrical blade edge portion 12. The plane shape along the circumferential direction is formed in a triangular shape.
That is, in FIG. 4 (C) showing the details of the blade 11, the triangular blade 11 has an obtuse angle than the inclined surface 11a on the rotation direction side of the cutter 1 having an inclination angle α and the inclined surface 11a on the rotation direction side. A tip cutting portion 11c that is an intersection with the inclined surface 11b on the opposite side is formed, and a relief portion 11f having a predetermined volume is formed between the blades 11. In addition, the base portion 11d of each blade 11 is rounded to avoid stress concentration during cutting. 11e is the root circle of the blade.

When performing the deboning and disassembling process of the pork carcass 6 using the cutting device 200, the operator grasps the two grip portions 4 and 5 of the cutting device 200 and activates the motor 2. While the ring cutter 1 is bitten into the pork carcass 6 and moved in the direction of the work line 1z, a deboning and dissemination process for separating the meat part and the bone part of the pork carcass 6 is performed.
At this time, since the plurality of blades 11 are formed with relief portions 11f having a predetermined volume in the circumferential direction, the cut pieces are discharged after passing through the relief portions 11f during the deboning and breaking processing. The cutting resistance during the deboning process is reduced and the deboning processability is improved.

According to this embodiment of the cutting apparatus, the ring cutter 1 is moved from the circular inner peripheral surface 12a of the blade edge portion 12 to the end portion of the blade edge portion 12 formed in a cylindrical shape concentric with the rotational axis 1y thereof. Since a plurality of triangular blades 11 having a constant thickness t and a height h are formed at equal intervals along the circumferential direction of the blade edge portion 12, each of the blades 12 formed at the end of the blade edge portion 12 is formed. The blade 11 can be formed from the circular inner peripheral surface 12 a to the same thickness t as the cylindrical blade edge portion 12.
Thereby, compared with what was formed in the thin blade which has a curved guide surface like patent document 1, the intensity | strength of the blade 11 becomes large at each step | paragraph and the lifetime of the ring cutter 1 can be extended.

  In addition, since the plurality of blades 11 can be formed in a form using a part of the blade edge portion 12 by cutting the blade edge portion 12 by a height h from the end portion of the cylindrical blade edge portion 12, as in Patent Document 1 described above. The blade 11 can be easily processed as compared with the case where each blade is formed by performing a bending process, and the number of processing steps of the ring cutter 1 can be reduced.

ADVANTAGE OF THE INVENTION According to this invention, the cutting process method of the meat carcass which can facilitate the deboning process in a meat carcass and can reduce the number of deboning work man-hours and the number of workers of a deboning work is provided. Can do. According to the invention of claim 3 , it is possible to increase the strength of the blade formed at the end of the cutting edge portion of the ring cutter than the conventional one, and to extend the life of the ring cutter, The processing of the blade of the ring cutter is simplified, and a cutting device that can reduce the number of processing steps of the meat carcass can be provided.

It is a work flowchart which shows the 1st example of the deboning of the pork carcass of the pork carcass (meat carcass) which concerns on the Example of this invention, and a loosening process procedure. It is a work flow figure showing the 2nd example of the above-mentioned deboning and separation processing procedures. It is a principal part work-flow chart which shows the 3rd example of the said deboning and disassembly process procedure. The structure of the ring cutter of the cutting device which concerns on the Example of this invention is shown, (A) is sectional drawing which follows a cutter axial center line, (B) is an A arrow directional view in (A), (C) is an expansion of a blade. It is a figure (B arrow directional view in (B)). It is a side view of the said cutting device. It is operation | movement explanatory drawing of the cutting device provided with the said ring cutter. It is an operation | work flowchart which shows the deboning of the conventional pork carcass, and a loosening process procedure. The structure of the conventional cutting device is shown, (A) is a principal part perspective view of a ring-shaped cutter, (B) is an enlarged perspective view of the blade part of a ring-shaped cutter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Semi-clean zone 101 Clean zone 102 Deboning process zone 103 Large division | segmentation zone 104 Spine round extraction processing part 200 Cutting device 1 Ring cutter 1y Rotation axis 2 Motor 3 Cutter body 4, 5 Grasping part 6 Pork carcass 11 Blade 11a, 11b Inclined surface 11c Tip cutting part 11f Escape part 12 Cutting edge part 12a Circular inner peripheral surface 13 Screw part 14 Support part

Claims (3)

A pre-treatment step for primary disassembly such as cutting of the head and legs of the meat carcass in a warm atmosphere, excision of the internal organs, a cooling storage step for cooling and storing the meat carcass after the primary disassembly treatment, and cooling In the processing method of the meat carcass comprising the division step of performing at least part of the large division processing after the primary dismantling processing in the cold atmosphere in the stored meat carcass,
Separated into a split process in which a large split process after the primary dismantling process is performed in a warm atmosphere and a split process performed in a cool atmosphere after the cold storage,
The first process in which the division process performed in the warm atmosphere includes a pre-process of deboning process including a split carcass, a tibial side meat process, and an abdominal fat stripping process on the meat carcass, and the first process. A second process to later deboning of the hipbone, tibia and spine removal;
The dividing process performed in a cold atmosphere for the meat carcass stored in the cold storage is distributed to the body, shoulders, thighs and loin and rose parts, and the corresponding process is performed for each of the loose parts. A method for cutting a carcass of meat. 2. The method for cutting a meat carcass according to claim 1, wherein the division process performed in the hot atmosphere is performed in a clean zone having a higher cleanliness than a zone in which the meat carcass is subjected to a primary dismantling process . A constant thickness (t) from the circular inner peripheral surface of the cutting edge to the end of the cutting edge formed in a cylindrical shape concentric with the rotational axis of the cutter used for the deboning process and the breaking process A ring-shaped cutter in which a plurality of blades having a triangular shape in the circumferential direction are formed at equal intervals along a circumferential direction of the blade tip portion via a clearance portion of a predetermined volume The method for cutting meat carcass according to claim 1, wherein:

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