JP4623754B2 - Method and device for rib deboning of rose - Google Patents

Description

  The present invention automates the deboning work of the ribs of the rib parts obtained by dividing the carcass half cut into the carcass for meat, greatly improving the work efficiency compared to the manual work, and compared with the manual work. The present invention relates to a deboning method and an apparatus thereof that do not reduce the yield of meat attached to the ribs.

  FIG. 14 shows a divided part of a pig carcass as an example. When processing meat carcasses of domestic animals such as pigs, cows, sheep, etc., after first carcass carcasses of meat carcass is roughly divided into Kata Ude parts 04, 05, Loin rose parts 02, 03 and peach parts 01 , Deboning work at each site. In the deboning work of the loose / rose portions 02 and 03, there are roughly two types of bones, the spine and the ribs. When these two types of bone deboning methods are performed manually, the ribs are first cut (cut) into the ribs, and the ribs and meat are separated by pulling them with a string. After that, the rib is removed from the joint by bending from the joint of the rib, and the spine is removed.

  Unlike the removal of the ribs, the spine removal has no work of peeling the bones and meat, and is all cut with a knife. The spine has irregularities such as papillary processes and spinous processes, and has a very complicated shape. Also, bone and meat are connected by strong muscles and cannot be peeled off, and in order to perform bone removal with a high yield, an operator must perform a very complicated knife movement manually to separate bone and meat. I must. In this way, the spine and meat are separated, and the deboning is completed.

  Conventionally, as a method for removing the ribs of the loin / rose portion, for example, in Patent Document 1 (Japanese Patent Laid-Open No. 10-179015), an incision groove is provided in the upper part of the rib base of the spine / rib joint of the loin / loose meat, A debonation formed by placing a single string-like member in the incision groove, allowing the gap between the ribs to be hidden from the upper side of each rib base to the lower rib by the string-like member, and suspending the string-like member on the bone part. A method is disclosed in which a group of loops is simultaneously pulled to the lower part of the ribs at the same time so that the whole bone can be removed.

However, the method disclosed in Patent Document 1 is a method that can improve the work efficiency in that the deboning process of all the ribs can be performed in a lump, but is provided transversely at the base of the rib group. It is necessary to insert a hook into the string-like member placed in the incision groove from between the ribs and hook the string upper member with a collar provided at the tip of the hook. Some degree of precise control is required for the operation.
In addition, there remains a process that requires manual work such as fixing the loin / rose part to a fixed plate, and it has not been fully automated yet there is still room for improving work efficiency.

  Further, the rib deboning method of the loin / rose part previously proposed by the present inventors is to cut a U-shaped cut around the end surface of the rib with a pipe-shaped cutter, insert a U-shaped string into the cut, and leave it as it is. This is a method of separating the meat up to the joint with the spine by pulling the string to the spine side along the rib surface (Patent Document 1; Japanese Patent Application Nos. 2005-49801 and 2; Japanese Patent Application No. 2005-49802). ).

JP-A-10-179015 Japanese Patent Application No. 2005-49801 (not disclosed) Japanese Patent Application No. 2005-49802 (Undisclosed)

  In the methods and apparatuses of Patent Documents 2 and 3, the rib deboning work is almost completely automated, and the work efficiency can be significantly improved as compared with the manual work. The meat can be separated by sticking to the surface of the ribs, and there is an advantage that the yield is not lowered. However, it requires two steps, a cutting (stretching) process and a stringing (meat separation) process. There is room for improvement in that it cannot be deboned and the device configuration becomes complicated.

  The loin / rose portion is further separated into loin 02 and rose 03 as shown in FIG. 14. Loose 02 is used as roast and ribbed meat (spare ribs), and rose 03 is used as spare ribs and other cooking methods. Is done.

  In view of the problems of the prior art, the present invention simplifies the deboning work of the ribs separated from the loin, and is fully automated so that it can be performed in a series of operations to improve work efficiency. It is an object of the present invention to provide a method and an apparatus for removing ribs of ribs without causing a decrease in the yield of meat remaining in the ribs compared to manual work.

In order to achieve such an object, the rib deboning method of the rose portion of the present invention,
In the method of deboning the ribs of the rose after the carcass half cut into carcasses for meat, after the large division,
Prepare a cutter body integrally comprising an arcuate cutting edge whose lower cross section is along the rib surface and a roller that presses the rib surface on the upstream side in the movement direction of the cutting edge,
Measuring the rib position of the rose portion placed on the work surface with the rib side facing upward;
Moving the cutter body to the rib to be deboned;
Insert the blade edge around the distal end surface of the rib, and press the upper surface of the rib with the roller while contacting a cylindrical stopper whose outer diameter is smaller than the inner diameter of the blade edge on the distal end surface of the rib downstream in the meat separation direction And moving the cutter body in the longitudinal direction of the rib in a state where the lower surface of the rib is pressed against the blade edge until the blade edge is outside the peripheral surface of the stopper, and separating the meat around the rib. It is characterized by becoming.

In the method of the present invention, first, the rose portion is placed on the work surface with the rib side facing upward. Then, after measuring the rib position, the rib is removed.
The rib position measurement method includes, for example, a thin plate-like detection plate having a detection unit protruding at a position in contact with a loose part and a sensor sensing unit protruding in a direction different from the detection unit, and a plurality of the detections A detection unit comprising a support shaft that is pivotably supported in a state where the plates are stacked and a proximity sensor group that is provided at a position facing each sensor sensing portion of the plurality of detection plates is prepared. The detection unit is moved so that the detection unit comes into contact with a portion to be inspected of a loose part placed on the surface with the rib side facing upward, and the on / off state of the proximity sensor is observed by swinging the sensor sensing unit. To detect the rib position.

As another measuring method, the detection roller is moved along the spine surface in the spine direction with respect to the rib surface, and the copying position of the detection roller that moves up and down corresponding to the unevenness of the rib group is read by the CPU of the control unit, By calculating the above, the cutting edge position of the cutter body is determined.
In both of the above methods, if two detection units or detection rollers are provided and run along the both ends of the rib, the length of the rib and the inclination with respect to the reference plane can be calculated simultaneously from the positional information of the both ends of the rib. Various kinds of position information can be obtained quickly and accurately.

After measuring the rib position by such a measurement method, the cutter body is moved to the rib position to be deboned, and the cutter body is rotated so that the moving direction of the blade edge matches the inclination of the rib measured in the measurement step. Move. Then, the cutter main body is placed so that the roller attached to the cutter main body is positioned on the longitudinal axis of the rib on the surface of the rib portion at the rib position.
At this time, the roller and the blade edge attached to the cutter body are in close contact with the surface of the rose portion, so that the blade edge can be easily inserted around the distal end surface of the rib and the contact of the roller with the rose portion surface is ensured. The cutter body may be placed in a state where a pressing force is applied to the surface of the bulk part.

  Next, the cutting edge is inserted around the distal end surface of the rib, and a cylindrical stopper with an outer diameter smaller than the inner diameter of the cutting edge is brought into contact with the distal end face of the rib downstream in the meat separation direction to seal the movement of the rib in the longitudinal direction. In addition, the cutter body is moved in the longitudinal direction of the rib in a state where the upper surface of the rib is pressed by the roller and the lower surface of the rib is pressed against the blade edge. At this time, the blade edge is moved until it comes to the outside of the peripheral surface of the cylindrical stopper to separate the meat around the rib.

  That is, when the upper surface of the rib is pressed with a roller, the cutting edge comes into close contact with the lower surface of the rib. Therefore, if the cutter body is moved in the longitudinal direction of the rib while the rib upper surface is pressed by the roller, the meat is separated with the blade edge in close contact with the rib surface, so that the meat remaining on the rib surface may be reduced. it can.

  In addition, since the outer diameter of the cylindrical stopper is smaller than the inner diameter of the cutting edge, the cutting edge that moves while separating the meat toward the rib end face downstream in the meat separation direction is in contact with the rib end face. Since it can move smoothly outside the outer periphery of the stopper without hitting the stopper, meat separation over the entire length of the rib from the distal end surface to the distal end surface can be performed without any trouble.

  Also, the loose parts are placed on the conveyor, arranged at regular intervals along the conveyor, and tact-fed so that the loose parts stop at a plurality of deboning stations with different inner diameters of the lower edge of the blade edge, If the group is grouped according to its outer diameter and the deboning process is performed at the deboning station provided with the inner diameter of the cutting edge adapted to the outer diameter of each group, the meat remaining in the ribs can be further reduced. Can do.

Next, the deboning device of the present invention for carrying out the method of the present invention comprises:
In the device for deboning the ribs of the rose after dividing the carcass half cut into carcasses for meat,
A cutter body integrally provided with an arcuate cutting edge whose lower cross section is along the rib surface and a roller that presses the rib surface on the upstream side in the moving direction of the cutting edge;
Means for applying an urging force for pressing the roller downward on the surface of the rose part;
Means for measuring the rib position of the rose portion placed on the work surface with the rib side facing upward;
Means for moving the cutter body to the rib to be deboned;
It consists of a cylindrical stopper that is provided integrally with the cutter body and faces the distal end surface of the rib on the downstream side in the meat separation direction when the rib is removed, and has an outer diameter smaller than the inner diameter of the blade edge,
The cutter body is configured to move in the longitudinal direction of the rib while pressing the upper surface of the rib with the roller in a state where the blade edge is inserted into one rib end face.

In the device of the present invention, first, the position of the rib to be deboned is measured by the rib position measuring means. Next, the cutter body is moved to the position of the measured rib, and the cutter body is rotated so that the moving direction of the blade edge matches the inclination of the rib measured in the measurement step. In this way, the cutter body is placed on the surface of the rose portion so that the roller is positioned on the longitudinal axis of the rib and the cylindrical stopper faces the end face of the rib.
By providing means for applying a pressing force to the loose portion when the cutter body is placed on the loose portion, the roller is likely to be in close contact with the surface of the loose portion, and the cutting edge is likely to be cut around the distal end surface of the rib.

In the apparatus of the present invention, the cutter body is moved in the longitudinal direction of the rib while pressing the upper surface of the rib with a roller while the blade is inserted into one rib end face. Meat separation on the rib surface can be performed in a state of being in close contact with the lower surface of the rib by pressure.
In addition, if the cutter body is configured to be swingable from the horizontal direction to the tilt direction, the cutter body can be made to follow the surface of the rose portion or the rib, and the meat can be separated smoothly, Meat remaining on the ribs can be minimized.

  Further, in the apparatus of the present invention, a conveyor for placing and transferring the bulk portion, a plurality of deboning stations arranged at equal intervals along the conveyor and having different inner diameters of the lower edge of the blade, and the conveyor Means for measuring the position of both ends of each rib of the placed rose, and detecting the length of each rib from the position at both ends of each rib, and the outer diameter of each rib from the length of each rib And a deboning process at the deboning station having a cutting edge adapted to the outer diameter of the rib determined by the determination circuit. If it comprises, it can deboner with the blade edge of the internal diameter suitable for the magnitude | size of the outer diameter of each rib of a rib group, Therefore The meat remaining on the rib surface can further be reduced.

  According to the method of the present invention, there is provided a cutter body integrally provided with an arcuate cutting edge whose lower cross section is along the rib surface and a roller for pressing the rib surface on the upstream side in the movement direction of the cutting edge, on the work surface. A step of measuring a rib position of a rose portion placed with the rib side facing upward; a step of moving the cutter body to the rib to be deboned; and inserting the cutting edge around the rib tip surface to separate the meat The cutter body is placed in the state where the upper surface of the rib is pressed with the roller and the lower surface of the rib is pressed against the blade edge while the cylindrical stopper whose outer diameter is smaller than the inner diameter of the blade edge is in contact with the distal end surface of the rib in the downstream direction. In the longitudinal direction, the blade tip is moved until it comes to the outside of the peripheral surface of the stopper, and the meat around the rib is separated, so that the deboning process of the rib can be fully automated and the processing efficiency is greatly increased. That we can improve In the deboning process the ribs can be carried out in one step, to enable the simplification of the deboning process. In addition, the amount of meat remaining on the rib surface does not increase compared to manual work, and the yield of meat is not reduced.

  Further, in the rib position measurement step, as a measurement method, a thin plate-like detection plate having a detection unit protruding at a position in contact with a loose part and a sensor sensing unit protruding in a direction different from the detection unit, and a plurality of detection plates A detection unit comprising a support shaft that is swingably supported in a state where the detection plates are stacked, and a proximity sensor group provided at a position facing each sensor sensing portion of the plurality of detection plates is prepared. The proximity sensor is turned on and off by moving the detection unit so that the detection unit comes into contact with the inspected part of the loose part placed on the work surface with the rib side facing upward. If the rib position is detected by looking at the state, the rib position can be measured with high sensitivity and accuracy.

  In addition, if both ends of the rib are measured simultaneously in the measurement step, the inclination and outer diameter of the rib can be determined from the information on the both ends, thereby facilitating the deboning process in the deboning step. Can be.

  According to the apparatus of the present invention, a cutter main body integrally including an arcuate cutting edge whose lower cross section is along the rib surface and a roller for pressing the rib surface on the upstream side in the movement direction of the cutting edge; Means for applying a biasing force for pressing downward on the surface, means for measuring the rib position of the rib portion placed on the work surface with the rib side facing upward, and moving the cutter body to the rib to be deboned And a cylindrical stopper provided integrally with the cutter body and facing the distal end surface of the rib on the downstream side in the meat separation direction when the rib is removed, and the cutting edge of one of the cutting edges The structure that the cutter body is moved in the longitudinal direction of the radius while pressing the upper surface of the radius with the roller while being inserted into the end surface of the radius enables full automation of the deboning process of the radius. Greatly improve It is possible, the deboning process the ribs can be carried out in one step, to enable the simplification of the deboning process. In addition, the amount of meat remaining on the rib surface does not increase compared to manual work, and the yield of meat is not reduced.

  Preferably, when the cutter body is provided with a means for applying a pressing force to the loose portion when the cutter body is placed on the loose portion, the roller and the blade edge of the cutter main body are in close contact with the loose portion and the deboning process is performed more reliably. be able to. Also, if the cutter body is supported so as to be able to swing from the horizontal direction to the inclined direction, the cutter body can follow the longitudinal curved surface of the ribs during the deboning process, and meat separation can be performed smoothly. Can do.

Also preferably, a conveyor for placing and transferring the bulk parts, and a plurality of deboning stations arranged at equal intervals along the conveyor and having different inner diameters of the lower edge of the cutting edge,
Means for measuring the positions of both ends of each rib of the rose placed on the conveyor, and detecting the length of each rib from the position at both ends of each rib, and each rib from the length of each rib A deboning station comprising a cutting edge that fits the outer diameter of the rib determined by the decimation circuit If it is configured to perform the deboning process, it is possible to remove the bone with a cutting edge having an inner diameter that matches the outer diameter of each rib of the rib group, and therefore, the meat remaining on the rib surface can be further reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is the whole elevation view of a rib detection apparatus which shows 1st Example which applied this invention to the deboning process of the rib of the rose part of meat pork carcass. It is a partially expanded sectional view (BB sectional drawing of FIG. 2) of the rib detection apparatus of the said 1st Example. It is a partially expanded sectional view (AA sectional drawing of FIG. 2) of the rib detection apparatus of the said 1st Example. It is the whole elevation view of the rib deboning apparatus of the rose part of the said 1st Example. It is process drawing of the deboning process of the said 1st Example. It is explanatory drawing which looked at the deboning process line of the said 1st Example from the top. It is a perspective view of the blade edge | tip 83 of the said 1st Example. It is explanatory drawing of the measurement process of the said 1st Example. It is explanatory drawing of the measurement process of the said 1st Example. It is explanatory drawing of the measurement process of the said 1st Example. It is explanatory drawing of the measurement process of the said 1st Example. It is a block diagram of the control system of 2nd Example of this invention. (A) is an elevation view of the rib position measuring device 100 of the third embodiment of the present invention, (b) is an explanatory diagram of the copying travel of the detection roller 102, (c) is a diagram showing the detected rib mountain curve It is. It is explanatory drawing which shows the division | segmentation site | part of a pig carcass.

Explanation of symbols

03 Bulk parts 07 Rib group 09 Bulk meat 21 Belt conveyor 33 Ball screw (moving means of cutter body)
30 rib position detection device 38, 38a, 38b detection unit 39, 39a, 39b detection plate 40, 41a, 41b support shaft 41, 41a, 41b detection unit 42, 42a, 42b sensor sensing unit 43, 43a, 43b proximity sensor 60 rib Deboning device 80 Cutter body 81 Roller 83 Cutting edge 84 Cylindrical stopper 62, 65 Air cylinder (Cutter body moving means)
71 Air cylinder (pressing force applying means)
S1 station (large outer diameter rib removal)
S2 Same as above (mid-outer diameter rib removal)
S3 Same as above (small outer diameter rib removal)
72 Spindle (Cutter body swinging means)
73 Long hole (same as above)
90 rib thickness determination control system 93 rib thickness determination unit

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 embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.
FIG. 1 shows a first embodiment in which the present invention is applied to a deboning process of a rib of a rib part of a pork carcass for meat, and FIG. 2 is an overall elevation view of a rib detection device. FIG. 2 shows a rib detection of the first embodiment. FIG. 3 is a partially enlarged sectional view (AA sectional view of FIG. 2), and FIG. 4 is a loose part of the first embodiment. FIG. 5 is a process diagram of the deboning process of the first embodiment, FIG. 6 is an explanatory view of the deboning process line of the first embodiment as viewed from above, and FIG. 8 and 11 are explanatory diagrams of the measurement process, FIG. 12 is a block diagram of the control system of the second embodiment of the present invention, and FIG. FIG. 4 is an elevation view of the rib position measuring apparatus 100 of the third embodiment, FIG. 5B is an explanatory diagram of the copying travel of the detection roller 102, and FIG. 5C is a diagram showing the detected rib mountain curve.

  In the first embodiment of the present invention, the rib position detecting device 30 will be described first with reference to FIGS. In FIG. 1, the conveyor device 20 is supported by the middle frame f <b> 2, and the conveyor belt 21 of the conveyor device 20 constitutes a work surface, and the loose portion 03 is placed on the conveyor belt 21 and sent to each processing step. A reference plate 22 is fixed to the conveyor belt 21 in a feeding direction (a direction perpendicular to the paper surface) of the loose portion, and is placed so that the spine side end face 03a of the loose portion is in contact with the reference plate, and a reference position in the deboning process. It becomes.

  Above the conveyor device 20, a rib position detection device 30 is provided. The rib position detecting device 30 is movable in the feed direction of the belt conveyor 21 (perpendicular to the paper surface) by rotation of a ball screw 33 rotated by a servo motor 32 and a guide by a guide rod 50. Two air cylinders 34a and 34b are provided below the support member 31, and guide plates 36a and 36b fixed to the tips of the pistons 35a and 35b are movable in the vertical direction (arrow a direction). .

Boxes 37a and 37b are attached to the guide plates 36a and 36b so as to be movable in the horizontal direction (arrow b direction) by an air cylinder (not shown), and the detection units 38a and 38b are housed in the boxes 37a and 37b. Yes.
The configuration of the detection unit 38a will be described with reference to FIGS. 2 and 3 (the detection unit 38b has the same configuration as the detection unit 38a, and the configuration of the detection unit 38a will be described as a representative of both). 2 and 3, the detection unit 38a includes a detection plate 39a and a proximity sensor 43a attached to the support shaft 40a so as to be rotatable in the forward and reverse directions.

  The detection plate 39a has a thin plate shape, and includes a detection unit 41a projecting downward and a sensor sensing unit 42a projecting upward so as to hit the portion to be inspected of the bulk region 03, and a number of the detection plates 39a are overlapped. In this state, it is attached to a support shaft 40a mounted on the box 37a so as to be rotatable in the direction of arrow c. The proximity sensor 43a is attached to a support plate 44a mounted on the box 37a so as to be fixed at a position facing the sensor sensing unit 42a. The detection plate 39a is provided with an arc-shaped long hole 45a, the rotation angle range of the detection plate 39a is restricted by a cylindrical stopper 46a that is loosely fitted in the long hole 45a, and the detection plate 39a is moved downward by the stopper 47a. The rotation is restricted.

  The sensor sensing unit 42a and the proximity sensor 43a are sequentially shifted so as not to interfere with the sensor sensing unit and the proximity sensor of the adjacent detection plates 39a, and the sensor sensing unit 42a has a sensing range of the other detection plates 39a. To avoid entering. Further, at the lower end portion of the guide plate 36a, when the guide plate 36a is lowered, it comes into contact with the inspected portion of the loose portion 03 to perform vertical positioning with respect to the loose portion of the detection unit 38a, and the air pressure of the air cylinder 34a is adjusted. A copying plate 48a to be added to the loose portion 03 is provided in the horizontal direction. The support portion 49 of the ball screw 33 is supported by the lateral frame f4, and the ball screw 33 slides the support portion 31 of the rib position detecting device 30 together with the guide rod 50 in the horizontal direction.

  Next, the rib deboning device 60 of the present embodiment will be described with reference to FIG. As shown in FIG. 6, the rib deboning device 60 is located slightly upstream of the rib position detecting device 30 in the feeding direction of the loose portion 03 by the belt conveyor 21, and is fixed to a support portion 51 that is common to the rib position detecting device 30. Has been. In FIG. 4, the support portion 61 of the rib deboning device 60 is reciprocated in the feed direction of the belt conveyor 21 by the rotation of the ball screw 33 driven by the servo motor 32 and the guide by the guide rod 50, as in the rib position detecting device 30. It is configured to be movable, and is configured to be movable in the vertical direction (arrow d direction) by an air cylinder 62 attached to the support portion 52 integral with the common support portion 51.

  Further, the rib deboning device 60 is attached to a rotation shaft 63 attached to the lower end portion of the support portion 61, and can be turned in the direction of arrow c (forward / reverse direction) by a servo motor 75 attached to the support portion 61. It has become. A support frame 64 is attached to the lower end of the rotating shaft 63, an air cylinder 65 is provided at one end of the support frame 64, a moving frame 66 is attached to a piston 65a of the air cylinder 65, and the moving frame 66 is an air cylinder. 65 is guided by a guide bar 69 integrated with the support frame 64 and is driven forward and backward in the direction of arrow f.

  The cutter main body 80 is attached to the moving frame 66 via the U-shaped links 67 and 68. A parallelogram is formed by the U-shaped links 67 and 68 and the straight links 70 mounted on these links. By this mechanism, the cutter body 80 maintains a horizontal posture with respect to the loose portion 03. Further, one end of a U-shaped link 67 is connected to the piston 71a of the air cylinder 71 fixed to the moving frame 66, and the cutter body 80 can be slightly lowered by the air cylinder 71, and the air pressure of the air cylinder 71 causes the cutter body 80 to move. It is given to the rose part 03 via.

  Since the support shaft 72 that serves as a fulcrum of the movement is fitted in the elongated hole 73 of the moving frame 66 and the pivot shaft 72 is slidably fitted in the elongated hole 73. The rear end (right end in FIG. 4) of the cutter body 80 can be raised in the direction of the arrow g, so that the cutter body 80 is allowed to tilt in accordance with the curved surface of the loose part surface.

  The cutter body 80 is provided with a roller 81 at its front end (left side in FIG. 4), and the roller 81 is configured so that the elastic force of the coil spring 82 is applied in a direction of pressing the loose portion 03. Further, a cutting edge 83 having a U-shaped cross section as shown in FIG. 7 is attached to the lower part of the cutter body 80, and the cutter body 80 is slid in the direction of the arrow h so as to make a cut around the rib 07 as it is. The rib 07 is cut from the loose portion 03 by moving to.

Further, a stopper 84 having a cylindrical outer periphery is provided at a position facing the end face of the rib 07. The cylindrical stopper 84 is fixed to the support frame 64 via an attachment portion 74, and the outer periphery thereof is made smaller than the inner diameter of the blade edge 83 so that the blade edge 83 can pass outside.
FIG. 6 shows a deboning station divided into a plurality of parts in this embodiment. In FIG. 6, the spine side end face 03a of the loose portion is placed in contact with the reference plate 22 at the input position T, and becomes the reference position in the deboning process.

  Next, the loose part 03 is tact-fed by the belt conveyor 21 in the direction of arrow i so as to stop at each of the deboning stations S1 to S3. At each station, the rib deboning device 60 and the rib position detecting device 30 slide on the ball screw 33 in the direction of the arrow j while being integrally fixed to a common support portion 51. Station S1 is equipped with a cutting edge 83 having an outer diameter suitable for a rib with a large outer diameter, station S2 is equipped with a cutting edge with a matching medium diameter outer rib, and station S3 has a cutting edge that fits a rib with a small outer diameter. Is equipped.

The rib group usually has a larger outer diameter on the head side and a smaller outer diameter toward the caudal side. Therefore, the rib group on the head side is targeted for deboning at station S1, and the rib group at the middle part is removed at station S2. It becomes a bone target, and at the station S3, the caudal rib group is a target for deboning.
The loose portion 03 starting from the loading position T is first stopped at the station S1, where the rib position detecting device 30 first detects the rib position, and then the rib deboning device 60 debones the rib group having a large outer diameter.

  Next, the loose portion 03 is tact-fed to the station S2, and the deboning process of the rib with the medium outer diameter is performed at the station S2. Thereafter, it is further fed to station S3, where the ribs in the region having a small outer diameter are deboned.

  Next, a rib position detection method using the rib position detection device 30 will be described. In FIG. 8, 11 to 13 rib groups 07 buried on the thin plate-like rose meat 09 other than the surface are present in parallel in the loose portion 03. The overlapped detection plate 39 swings around the support shaft 40, and the sensor sensing unit 42 swings relative to the fixed proximity sensor 43, so that the proximity sensor 43 fixed to the box 37 is turned on / off. Is a mechanism to switch.

The weight 52 provided integrally with the detection plate 39 is for keeping the detection plate 39 at the same position, and the sensor sensing unit 42 is located within the sensing range of the proximity sensor 43 unless an external force is applied. At this time, the proximity sensor 43 is on. As in the example shown in FIGS. 8 to 11, the weight 52 having the above action may be integrally provided on the detection plate 39.
Adjacent detection plates have different sensor sensing portions 42 in order to prevent the proximity sensor 43 from interfering with each other.

  In order to detect the rib position, the detection unit 38 is first brought close to the loose part 03 as shown in FIG. Since there is an individual difference in the thickness of the loose portion 03, the detection unit 38 is lowered by the air cylinder 34 so as to have an appropriate height. At that time, by applying the copying plate 48 fixed to the downstream side portion of the guide plate 36 to the surface of the loose portion 03 so that the height of the detection unit 38 with respect to the loose portion 03 is constant, Set the position for 03. By using the copying plate 48 in this way, a uniform force is applied to the loose portion 03 so that the loose portion 03 is not crushed, and a downward biasing force is applied to the copying plate 48 by the aerodynamic force of the air cylinder 34. Then, the copying plate 48 can be brought into close contact with the surface of the loose part.

  Next, as shown in FIG. 10, the detection plate 39 is passed over the bulk site 03 so that the detection unit 41 protruding downward contacts the bulk site 03. When the detection unit 41 comes into contact with the hard rib 07, the detection plate 39 rotates around the support shaft 40 in the direction of the arrow k (clockwise), and the sensor sensing unit 42 is out of the sensing range of the proximity sensor 43. It is turned off.

On the other hand, as shown in FIG. 11, when the detection plate 39 passes over the loose meat 09, the weight 52 is crushed by the action of the weight 52, the detection plate 39 does not rotate, and the proximity sensor 43 is kept on. .
By using this principle and storing the position information of the proximity sensor 43 that has been turned off most quickly, the exact end face position of the rib 07 and the center position of the bone can be known.

  In this embodiment, the two detection units 38a and 38b are respectively positioned at both ends of the rib and simultaneously operated to detect both ends of the rib 07. Therefore, only the end face position and the center position of the rib 07 are detected. Rather, by calculating based on the positional information on both ends of the rib, the inclination of the rib and the length in the longitudinal direction can be calculated.

  Next, the deboning process operation of the radius in the present embodiment will be described. 5A shows a state before the deboning process of the rib deboning apparatus 60. FIG. (B) shows the state after the deboning process. At this time, the moving frame 66 is pushed in the direction of the arrow h by the air cylinder 65, and the cutter body 80 is also pushed out in the direction of the arrow h at the same time as the moving frame 66. A U-shaped cutting edge 83 is located outside the outer periphery of the fixed cylindrical stopper 84.

  In FIG. 1, a long hole 73 is provided in the moving frame 66 to allow the cutter body 80 to tilt in the direction of arrow g. However, in the configuration of FIG. 5, instead of the long hole 73, as shown in FIG. 1 is replaced with a coil spring 75 to allow the inclination of the cutter body 80 in the direction of arrow g. If both the long hole 73 and the coil spring 75 are provided to allow the inclination of the cutter body 80 in the direction of arrow g, the inclination of the cutter body 80 in the direction of arrow g can be further facilitated.

FIG. 5 (d) shows the state at the start of deboning, (e) during the deboning, and (f) at the end of the deboning. At the start of deboning, the positions of both ends of the ribs are detected in the rib position detection step, and the inclination and length of the ribs 07 can be calculated accordingly. First, the rib deboning device 60 is rotated around the rotation shaft 63. Thus, the direction of movement of the cutter body 80 in the direction f is adjusted to the inclination of the rib 07.
Then, the air cylinders 62 and 65 are operated to move the cutting edge 83 to a position where it contacts the rib distal end face 07a as shown in FIG. 5 (d).
Then, the cutter body 80 is placed on the loose part 03, and the cutter body 80 applies a pressing force to the surface of the loose part below the arrow m by the aerodynamic force of the air cylinder 71.

  Then, the air cylinder 65 is operated to move the cutter main body 80 in the direction of the arrow h, and the cutting edge 83 is inserted between the rib distal end surface 07a and the surrounding meat 09 to cut both. FIG. 5 (e) shows a state in the middle of deboning. At this time, the roller 81 presses the surface of the loose part by the elastic force of the coil spring 82, so that the cutting edge 83 comes into close contact with the surface of the rib. Since the cutting edge 83 comes into close contact with the rib surface during the deboning process by the pressing force of the roller 81, meat remaining on the rib surface can be minimized, and the meat yield can be improved.

  Further, during the deboning process, the tubular stopper 84 abuts against the rib end surface 07b to fix the rib, so that the deboning is not hindered. FIG. 5 (f) shows the end of deboning. At this time, the cutting edge 83 reaches the outer periphery of the cylindrical stopper 84, and deboning of the rib can be completed in one step. Since the outer diameter of the cylindrical stopper 84 is smaller than the inner diameter of the cutting edge 83, the cutting edge 83 can be smoothly moved to the outer periphery of the cylindrical stopper 84.

  In this embodiment, as shown in FIG. 6, the three stages S1 to S3 in which the outer diameter of the cutting edge 83 is made different along the belt conveyor 21 are installed, and the station S1 equipped with a large outer diameter cutting edge is large. At the station S2 equipped with an outer diameter blade of the intermediate class, the outer diameter of the rib is removed, and at the station S3 equipped with a small outer diameter, the station S3 equipped with a small outer diameter has a small outer diameter. Since the ribs are removed, the meat remaining in the ribs can be further reduced, and the meat yield can be further improved.

As described above, according to the present embodiment, in the rib position detection step, the swing of the detection plate 39 on which the rib hits can be identified by turning on / off the proximity sensor 43, so that the rib position of the loose portion can be accurately determined. Since the detection can be performed and the detection accuracy is high, the movement of the detection unit 38 can be accelerated and the detection time can be shortened.
Furthermore, since the two detection units 38a and 38b can simultaneously detect both ends of the rib, it is possible to calculate the inclination and length of the rib, thereby efficiently performing the deboning process in the subsequent process.

Further, in the rib deboning process, the deboning of one rib can be completed by one movement of the cutter body 80, the processing process can be shortened, and from the detection of the rib position to the deboning. Since it can be fully automated, work efficiency can be greatly improved.
Further, since the pressing force is applied to the loose part 03 by the roller 81 at the time of bone removal, the meat part can be separated while the cutting edge 83 is in close contact with the rib surface, thereby improving the meat yield.

  Furthermore, the deboning process is divided into three stations S1 to S3, and each station uses a cutter body 80 having a different cutting edge outer diameter, and the ribs having an outer diameter suitable for the cutting edge outer diameter are targeted for deboning at each station. The yield of meat remaining on the ribs can be further improved.

  Next, as a second embodiment of the present invention, a modification of the first embodiment will be described with reference to FIG. In the first embodiment, as shown in FIG. 6, the deboning process is divided into three stations S1 to S3, each of which is equipped with a cutter main body 80 having a different cutting edge outer diameter, and the outer diameter of the rib is large, medium, and small. Each group is divided into three groups, and the deboning process is adapted to the outer diameter of the blade at three stations. In this embodiment, the deboning process can be completely automated by the control system 90 shown in the block diagram of FIG.

  In FIG. 12, the position information of both ends of the ribs detected by the detection units 38a and 38b is sent to the calculation unit 91, and the calculation unit 91 calculates the length of the ribs and the inclination of the ribs relative to the reference plate 22 from the position information of both ends of the ribs. Calculated. The memory 92 stores contrast information regarding the length and thickness of the ribs, and the detection unit 38a and the rib length calculation value sent from the calculation unit 91 by the rib thickness determination unit 93 and the comparison information sent from the memory 92 are stored in the memory 92. The thickness of the rib detected in 38b is determined.

From this determination result, the cutting command unit 94 determines at which station the deboning process is performed. The ribs are generally grouped from the normal head side into large, medium, and small because the ribs on the head side are generally thicker and gradually narrow toward the tail side.
According to the present embodiment, it is possible to completely automate the deboning process grouped into the station S1 (large rib thickness), the station S2 (middle) and the station S3 (small).

  Next, an example using another rib position detecting device will be described as a third embodiment of the present invention. In FIG. 13, the rib position detecting device 100 includes a linear guide 103 that travels at right angles to the base or distal end of the rib group 07, a detection base 101 that travels by screwing the linear guide 103 with a ball screw 106, and the base 101, a detection roller 102 that detects the undulation state of the uneven surface formed by the rib group, and an encoder B108 that detects the elevation of the detection roller by a combination of a rack gear and a pinion gear provided on the lifting shaft 107, The ball screw driving motor 104 is provided with an encoder A105 and the like for detecting the traveling position.

  With the above configuration, when the detection roller 102 travels following the outer surface of the rib portion of the rose portion 03, the detection roller 102 is lifted at the rib position, and the roller 102 falls at the flesh portion between the ribs. If the pulse axis of the encoder A105 indicating the running position is taken on the horizontal axis, the number of pulses of the encoder B108 showing the state of undulations on the rib surface is read on the vertical axis, and the change situation is shown in the graph, as shown in FIG. Thus, the position of the rib 07 can be detected.

The read detection data is read by a CPU of a control unit (not shown), and the position of the blade edge 83 of the cutter body 80 is determined by performing a required calculation.
If two detection rollers 102 are provided and copied along both ends of the ribs, the rib length and the inclination with respect to the reference plane are calculated simultaneously from the rib position information of the two rollers as in the first embodiment. And various position information of the ribs can be obtained quickly.

  According to the present invention, it is possible to perform the ribs of the carcass for livestock meat in a single process, simplify the processing process, and fully automate the process from the rib position detection process to the deboning process. Therefore, the processing time can be shortened and the processing efficiency can be greatly improved. In addition, the meat remaining on the ribs can be minimized, and the yield of meat is not reduced compared to manual work.

Claims (9)

In the method of deboning the ribs of the rose after the carcass half cut into carcasses for meat, after the large division,
Prepare a cutter body integrally comprising an arcuate cutting edge whose lower cross section is along the rib surface and a roller that presses the rib surface on the upstream side in the movement direction of the cutting edge,
Measuring the rib position of the rose portion placed on the work surface with the rib side facing upward;
Moving the cutter body to the rib to be deboned;
Insert the blade edge around the distal end surface of the rib, and press the upper surface of the rib with the roller while contacting a cylindrical stopper whose outer diameter is smaller than the inner diameter of the blade edge on the distal end surface of the rib downstream in the meat separation direction And moving the cutter body in the longitudinal direction of the rib in a state where the lower surface of the rib is pressed against the blade edge until the blade edge is outside the peripheral surface of the stopper, and separating the meat around the rib. A method for deboning a rib of a rose part,   The rib deboning method for a rib part according to claim 1, wherein the cutter body is placed in a state where a pressing force is applied to the surface of the rose part and the meat separation step is performed. The rib position measuring step includes
A thin plate-shaped detection plate having a detection unit protruding at a position in contact with a loose part and a sensor sensing unit protruding in a direction different from the detection unit, and swinging in a state where a plurality of the detection plates are overlapped Preparing a detection unit composed of a support shaft that can be supported and a proximity sensor group provided at a position facing each sensor sensing portion of the plurality of detection plates;
The detection unit is moved so that the detection unit hits a portion to be inspected of a loose part placed on the work surface with the rib side facing upward, and the proximity sensor is turned on and off by swinging the sensor sensing unit. The rib deboning method for the ribs according to claim 1, wherein the rib position is detected by visual inspection. The rib position measuring step includes
The rib deboning method according to claim 3, wherein the detection unit detects the positions of both ends of the rib to detect the inclination and length of the rib. Place the bulk parts on the conveyor,
The tact feed is performed so that the loose parts stop at a plurality of deboning stations that are arranged at equal intervals along the conveyor and have different inner diameters of the lower part of the cutting edge.
The ribs of the bulkhead according to claim 1, wherein the rib groups are grouped according to the outer diameter, and the deboning process is performed at the deboning station having a blade inner diameter adapted to the outer diameter for each group. Deboning method. In the device for deboning the ribs of the rose after dividing the carcass half cut into carcasses for meat,
A cutter body integrally provided with an arcuate cutting edge whose lower cross section is along the rib surface and a roller that presses the rib surface on the upstream side in the moving direction of the cutting edge;
Means for applying an urging force for pressing the roller downward on the surface of the rose part;
Means for measuring the rib position of the rose portion placed on the work surface with the rib side facing upward;
Means for moving the cutter body to the rib to be deboned;
It consists of a cylindrical stopper that is provided integrally with the cutter body and faces the distal end surface of the rib on the downstream side in the meat separation direction when the rib is removed, and has an outer diameter smaller than the inner diameter of the blade edge,
A rib deboning device for a rose part, wherein the cutter body is moved in the longitudinal direction of the rib while pressing the upper surface of the rib with the roller in a state where the blade edge is inserted into one rib end surface.   The rib deboning apparatus according to claim 6, further comprising means for applying a pressing force to the loose portion when the cutter body is placed on the loose portion.   The rib deboning apparatus for a rose according to claim 6, wherein the cutter body is supported so as to be swingable in a tilting direction from a horizontal direction. A conveyor for placing and transferring the bulk parts;
A plurality of deboning stations arranged at equal intervals along the conveyor and having different inner diameters of the lower edge of the cutting edge;
Means for measuring the position of both ends of each rib of the rose placed on the conveyor;
A detection circuit for detecting the length of each rib from the position at both ends of each rib and determining the outer diameter of each rib from the length of each rib,
The rib portion is tact-fed so as to stop at the deboning station, and deboning processing is performed at the deboning station having a cutting edge that matches the outer diameter of the rib determined by the determination circuit. The rib deboning apparatus of the rose part according to claim 6.

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