Poultry meat removal device

Abstract

To provide an edible chicken Seseri meat takeout device, which is a device for taking out automatically Seseri meat, having high work efficiency of manual placement of a body debris with neck onto block, and free from contamination of thoracic vertebra debris into Seseri meat.SOLUTION: An edible chicken Seseri meat takeout device includes a locking device for locking and moving continuously a body part of a body debris with neck, a first cutlery for making a streak from the side to the vicinity of the thoracic vertebrae, into body Seseri meat disposed sequentially from the upstream side toward the downstream side of a moving path of the locking device, a second cutlery for making a streak into neck Seseri meat, and a clamping tool for clamping the streaked neck Seseri meat.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a device for removing chicken gizzard meat. [Background technology]

[0002] Poultry gizzard meat is a general term for the gizzard meat from the back of the neck and the gizzard meat from the center of the back near the neck. Gizzard meat has a good texture and is delicious, making it highly valuable commercially. Traditionally, workers have extracted gizzard meat by cutting it out of the neck-attached carcass with a knife. Summary of the Invention [Problem to be solved by the invention]

[0003] The conventional manual cutting process using a knife has the problem of low work efficiency, and there is also the problem that when cutting the gizzard shank, part of the thoracic vertebrae is cut off along with the meat and gets mixed in with the gizzard shank. The present invention has been made in view of the above problems, and aims to provide a poultry gizzard meat extracting device which is highly efficient and prevents thoracic vertebrae fragments from being mixed into the gizzard meat. [Means for solving the problem]

[0004] In order to solve the above problems, the present invention provides a poultry gizzard meat removal device that is characterized by comprising a locking device that locks the body part of the neck-attached carcass and moves continuously, a first blade that cuts into the body gizzard meat from the side to near the thoracic vertebrae and is arranged sequentially from the upstream side to the downstream side of the locking device's movement path, a second blade that cuts into the neck gizzard meat, and a clamping device that clamps the cut neck gizzard meat. The only manual work is the task of fastening the necked carcass to the fastening device, resulting in high work efficiency. Furthermore, the manual task of fastening the necked carcass to the continuously moving fastening device allows workers to visually check the approaching fastening device and prepare for the work in advance, reducing the psychological burden on workers and increasing work efficiency. The necked carcass meat is not cut, but rather scored from the side up to the vicinity of the thoracic vertebrae, after which the scored necked carcass meat is clamped and pulled off, preventing fragments of the thoracic vertebrae from getting mixed in with the carcass meat.

[0005] In a preferred embodiment of the present invention, the first blade and the second blade are knives formed from thin sheets of spring steel and are sharpened. The first and second knives are made of thin plates of spring steel and have sharpened blades, and when they come into contact with the ribs or cervical vertebrae during incision, they flexibly deform and do not bite into or scrape the bone. In a preferred embodiment of the present invention, the locking device is attached to an endless conveyor having an upper running portion and a lower running portion and moves continuously, the first blade and the second blade are arranged opposite the upper running portion of the endless conveyor, and the clamping device is arranged opposite the lower running portion of the endless conveyor, and the locking device supports the neck portion of the necked carcass from below in the upper running portion of the endless conveyor. By scoring the neck gizzard meat on the upper running part of the endless belt and gripping the scoring-marked neck gizzard meat hanging down on the lower running part, the body gizzard meat can be effectively pulled away from the carcass. In a preferred embodiment of the present invention, a pair of first blades score the gizzard meat in the body from both sides of the direction of movement of the neck-attached carcass with the body facing forward, up to the vicinity of the thoracic vertebrae, or a single first blade scores the gizzard meat in the body from one side of the direction of movement of the neck-attached carcass to the vicinity of the thoracic vertebrae. If a pair of first blades is used to score the body part of the fish tail meat from both sides up to the vicinity of the thoracic vertebrae, the body part of the fish tail meat can be easily peeled off from the body carcass. Even if a single first blade is used to score the body part of the fish tail meat from one side up to the vicinity of the thoracic vertebrae, the body part of the fish tail meat can still be peeled off from the body carcass. In a preferred embodiment of the present invention, a single second blade scores the neck gizzard meat from one side of the direction of movement of the necked carcass with the body facing forward, across the cervical vertebrae to the opposite side. By making incisions in the neck gizzard meat from one side of the moving direction of the necked carcass over the cervical vertebrae to the other side, the gizzard meat can be separated from the neck without scraping off the cervical vertebrae. In a preferred embodiment of the present invention, a gripping tool for gripping the neck portion in cooperation with the locking tool is disposed adjacent to the second blade. By gripping the neck in cooperation with the fastener, the neck can be kept straight when making incisions in the neck. In a preferred embodiment of the present invention, the gizzard shank removal device is provided with a height measuring device that is disposed upstream of the first blade with respect to the moving path of the fastening tool and that measures the height of the thoracic vertebrae and cervical vertebrae. The height of the thoracic and cervical vertebrae is measured, and the yield of the body skipper meat is increased by making incisions in the body skipper meat at a height slightly lower than the height of the thoracic vertebrae, and the yield of the neck skipper meat can be increased by making incisions in the neck at a position slightly higher than the height of the cervical vertebrae without having to remove the cervical vertebrae. In a preferred embodiment of the present invention, the gizzard shank removal device includes a fastener rotation mechanism for changing the orientation of the fastener. The preferred working style is for the worker to face in a direction perpendicular to the movement direction of the locking tool and pull the necked body shell toward himself to lock the body into the locking tool. In this case, when the body is locked, it is oriented in a direction perpendicular to the movement direction of the locking tool. On the other hand, since the scoring work is done from the body to the neck, it is necessary to rotate the body by 90 degrees from the side of the movement direction of the locking tool to the front between the locking work and the scoring work. [Brief explanation of the drawings]

[0006] [Figure 1] 1 is an overall perspective view of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 2] 1 is a perspective view of a thoracic and cervical vertebrae height measuring device and a first knife provided in a poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 3] 1 is a perspective view of a clamping tool provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 4]1 is a partial perspective view of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 5] 1 is a perspective view of a thoracic and cervical vertebrae height measuring device provided in a poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 6] 1 is a perspective view of a first knife provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 7] FIG. 3 is a perspective view of a second knife provided in the poultry gizzard meat removal device according to the embodiment of the present invention. [Figure 8] 1 is a perspective view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 9] 1 is a perspective view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 10] 1 is a perspective view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 11] 1 is a partial perspective view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 12] 1 is a side view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 13] 1 is a side view of a fastener provided in a poultry gizzard meat removal device according to an embodiment of the present invention. [Figure 14] 3 is a perspective view of a second knife and a fixed roller provided in the device for removing chicken gizzard meat according to the embodiment of the present invention. FIG. [Figure 15] 1 is a perspective view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 16] 1 is a perspective view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 17] 1 is a perspective view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 18] 1 is a perspective view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 19]1 is a side view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 20] 1 is a side view of a fastener showing the operation of the poultry gizzard meat removal device according to an embodiment of the present invention. FIG. [Figure 21] 5 is a perspective view of a second knife and a fixed roller showing the operation of the device for removing chicken giblets according to the embodiment of the present invention. FIG. [Figure 22] 5 is a perspective view of a second knife and a fixed roller showing the operation of the device for removing chicken giblets according to the embodiment of the present invention. FIG. [Figure 23] 1 is a perspective view of a clamping tool showing the operation of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 24] 1 is a perspective view of a clamping tool showing the operation of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 25] 1 is a perspective view of a clamping tool showing the operation of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 26] 1 is a perspective view of a clamping tool showing the operation of a poultry gizzard meat removal device according to an embodiment of the present invention; [Figure 27] 1 is a perspective view of a residue removal device showing the operation of a poultry gizzard meat removal device according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0007] An apparatus for extracting chicken gizzard meat according to an embodiment of the present invention will be described. In the following description, the directions of arrows I, II, III, IV, V, and VI in the drawings will be referred to as forward, backward, rightward, leftward, upward, and downward. As shown in FIG. 1, the poultry gizzard meat removal device 1 includes a plurality of fastening devices 2 for fastening the body portion 100a of the necked carcass 100, and an endless conveyor 3 to which the fastening devices 2 are attached and which extends forward and backward. Facing the upper running section of the endless conveyor 3, from upstream to downstream in the running direction of the upper running section indicated by the white arrow in Figure 1, are arranged a thoracic and cervical vertebra height measuring device 4 shown in Figure 2, a first knife 5 for scoring the gizzard shank meat shown in Figures 1 and 2, and a second knife 6 for scoring the gizzard shank meat shown in Figure 1. Opposite the lower running portion of the endless conveyor 3, a clamping tool 7 shown in FIG. As shown in Fig. 4, sensor dogs 8 are attached to the endless conveyor 3 so as to face each of the locking devices 2. A pair of sensor dogs 8 is disposed with a specific locking device 2 therebetween, and a single sensor dog 8 is disposed so as to face another locking device 2. As shown in Figures 5, 6, and 7, a pair of proximity sensors 9 are arranged facing the thoracic and cervical vertebrae height measuring device 4, the first knife 5, and the second knife 6, with the endless conveyor 3 in between, and another proximity sensor 9 (not shown) is arranged on the clamping tool 7.

[0008] The locking device 2 will be described with a focus on the locking device 2 on the upper run shown in Figures 8 to 13. The locking device 2 has a substantially rectangular parallelepiped base 2a. A pair of deep longitudinal grooves 2a1 is formed at one longitudinal end of the top surface of the base 2a. A single shallow longitudinal groove 2a2 is formed in the top surface of the base 2a, sandwiched between the pair of deep longitudinal grooves 2a1. A pair of shallow longitudinal grooves 2a3 is formed in the top surface of the base 2a from the end portions of the pair of deep longitudinal grooves 2a1 and extends to the other longitudinal end of the base 2a. The locking device 2 faces a pair of deep longitudinal grooves 2a1 and is provided with a pair of movable arms 2b driven by a cam mechanism (not shown). The ends of the movable arms 2b facing the terminal ends of the deep longitudinal grooves 2a1 are bent to form stoppers 2b1. The pair of movable arms 2b open and close between a retracted position shown in Figures 8 and 12 in which the edges facing the deep longitudinal grooves 2a1 are spaced apart from each other, and an operating position shown in Figures 9, 10 and 13 in which the edges facing the deep longitudinal grooves 2a1 are close to each other. As can be seen from FIG. 8, inclined surfaces 2b2 and 2a2' are provided on the movable arm 2b facing the entrance of the deep longitudinal groove 2a1 and the entrance of the shallow longitudinal groove 2a2.

[0009] 5, the thoracic and cervical vertebra height measuring device 4 includes an arm 4a, a rotary tooth 4b with sharp teeth attached to the lower end of the arm 4a, and an encoder 4c attached to the left end of a shaft that passes through the upper end of the arm 4 from side to side. The bearing that supports the shaft is fixed to a predetermined structure (not shown). As shown in Figure 6, the first knife 5 is driven up and down by a servo motor (not shown) and left and right by an air cylinder 10. A pair of first knives 5 is disposed on both the left and right sides of the endless conveyor 3. The first knife 5 is formed from a thin plate of spring steel, and the blade is sharpened. As shown in Figure 7, the second knife 6 is driven up and down by a servo motor 11 and left and right by an air cylinder 12. A single second knife 6 is disposed on the left side of the endless conveyor 3. The second knife 6 is formed from a thin plate of spring steel, and the cutting edge is suitably sharpened. As shown in FIG. 14, a drum-shaped neck fixing roller 13 driven up and down by a servo motor (not shown) is disposed slightly behind the second knife 6 and above the fastener 2. As shown in FIG. 3, the clamping tool 7 has a pair of claws 16 that are driven up and down by a servo motor 14 and driven left and right by a drive mechanism 15 to move closer to and away from each other. As can be seen from FIG. 4, a cam mechanism (not shown) is provided to change the direction of the locking device 2 while it is running. As shown in FIG. 27, a disk 17a having a plurality of fingers 17 fixed radially on its peripheral surface and a drive motor are disposed downstream of the clamping tool 7. A control device (not shown) is provided to control the operation of servo motors 11 and 14, the servo motor for driving the first knife 5, the servo motor for driving the neck fixation roller 13, the air cylinders 10 and 12, and the drive mechanism 15 based on the output signal of the thoracic and cervical vertebrae height measuring device 4 and the detection signal of the proximity sensor 9.

[0010] The operation of the poultry gizzard meat extracting device 1 will now be described. 1 and 4, the body 100a of the necked shell 100 is fastened to the fastening device 2 by the worker 200 near the starting end of the upper running part of the endless conveyor 3. At this time, the fastening device 2 is oriented so that the grooves 2a1, 2a2, and 2a3 extend in the left-right direction and the groove 2a1 is located to the right of the groove 2a3. The worker 200 is positioned on the left side of the endless conveyor 3. The worker 200 holds the back side of the necked body 100 upward, grabs the neck 100b, and inserts both sides (ribs) of the body 100a into a pair of deep grooves 2a1 in the base 2, whose movable arms 2b are in the retracted position shown in Figures 8 and 12 and are moving forward, and pulls the necked body 100 toward himself. 15 to 17 and 19, both sides of the torso 100a are guided into the pair of deep grooves 2a1, and the thoracic vertebrae end 100a1 of the torso 100a is guided into the shallow groove 2a2, the necked torso 100 is pulled forward, and the connection part between the torso 100a and the neck 100b abuts the end part of the deep groove 2a1. As can be seen from Fig. 16, the entry of both sides of the torso 100a into the deep groove 2a1 is smoothly guided by the slope 2b2 of the movable arm 2b and the slope 2a2' of the shallow groove 2a2. A cam mechanism (not shown) is activated, and the movable arm 2b moves to the operating position shown in Figures 9, 10, and 13. As shown in Figures 18 and 20, the edges of the movable arm 2b facing the deep grooves 2a1 approach each other and clamp the area of ​​the torso 100a near the thoracic vertebrae on the back side, and the stopper 2b1 abuts the torso 100a near the connection with the neck, stopping the movement of the torso 100a toward the front, and therefore the necked torso 100 toward the front. As a result, the torso 100a and, in turn, the necked torso 100 are locked by the locking device 2. At this time, as can be seen in Figure 18, the neck 100b is placed on the top surface of the base 2a between the pair of shallow grooves 2a3 and supported from below. When the fastening device 2 that fastens the necked body 100 moves forward, a cam mechanism (not shown) is activated, causing the fastening device 2 to rotate 90 degrees around the vertical axis, as shown in Figure 4, and directing the body 100a of the necked body 100 forward in the direction of travel.

[0011] As the upper running part of the endless conveyor 3 moves, when the specific fastening device 2 sandwiched between a pair of sensor dogs 8 approaches the thoracic and cervical vertebrae height measuring device 4 as shown in Figure 5, the pair of proximity sensors 9 detects the approach of the pair of sensor dogs 8 and transmits a detection signal to the control device (not shown). The sharp teeth of the rotating teeth 4b of the thoracic and cervical vertebrae height measuring device 4 penetrate the gizzard meat and come into contact with the thoracic vertebrae, and then come into contact with the cervical vertebrae as the fastening tool 2 moves, causing the rotation angle of the arm 4a to vary according to the height of the thoracic and cervical vertebrae. This angle variation is sent via encoder 4c to a control device (not shown), which recognizes the height of the thoracic and cervical vertebrae from a predetermined reference point, assigns an identification number 1 to the specific fastening tool 2, and stores this identification number and the height of the thoracic and cervical vertebrae as a set. The fastening devices 2 following the specific fastening device 2 sequentially approach the thoracic and cervical vertebrae height measuring device 4, and one of the pair of proximity sensors 9 sequentially detects the approach of a single sensor dog 8, and the heights of the thoracic and cervical vertebrae are sequentially measured in the same manner as described above by the thoracic and cervical vertebrae height measuring device 4. A control device (not shown) sequentially assigns consecutive identification numbers from 2 onwards to the succeeding fastening devices 2, and sequentially stores the heights of the thoracic and cervical vertebrae from the reference point of the necked torso 100 fastened to the fastening device 2 and the identification numbers of the fastening devices 2 as sets. As a result, each fastener 2 and the height of the thoracic vertebrae and cervical vertebrae of the torso shell 100 fastened to the fastener 2 from the reference point are associated one-to-one and stored in the control device.

[0012] As the upper running section of the endless conveyor 3 moves, when the locking device 2 with identification number 1 approaches the first knife 5 as shown in Figure 6, the pair of proximity sensors 9 detects the approach of the pair of sensor dogs 8 and transmits a detection signal to the control device (not shown). The control device recognizes that the locking tool 2 with the identification number 1 has approached the first knife 5 by receiving the proximity detection signals of the sensor dogs 8 simultaneously from the pair of proximity sensors 9 . The control device reads from the memory the height information of the thoracic vertebrae of the carcass 100 with neck attached that is held by the holding device 2 with identification number 1, drives a servo motor (not shown) to position the cutting edge of the first knife 5 slightly lower than the height from the reference point of the thoracic vertebrae, and then drives the air cylinder 10 to insert the cutting edge of the first knife 5 from the side into the gizzard 100c of the body 100a up to the vicinity of the thoracic vertebrae, and as the holding device 2 moves, it makes a crease in the gizzard 100c of the body up to the vicinity of the neck. After the body 100a has passed, the first knife 5 moves away from the side of the body 100a. Next, the fastening devices 2 with identification numbers 2 and above approach the first knife 5 in sequence, and one of the pair of proximity sensors 9 sequentially detects the approach of a single sensor dog 8. The control device sequentially recognizes the approach of the fastening devices 2 with identification numbers 2 and above to the first knife 5, sequentially reads out the thoracic vertebrae height information stored in combination with the identification numbers from the memory unit, and drives the servo motor and air cylinder 10 (not shown) to sequentially score the gizzard shank meat 100c of the neck-on carcass 100 fastened to the fastening devices 2 with identification numbers 2 and above, at a height slightly lower than the height of the thoracic vertebrae, up to the vicinity of the thoracic vertebrae and up to the vicinity of the neck. In the example of Figure 6, a pair of first knives 5 are inserted into the body 100a from both sides to make incisions in the body gizzard meat 100c, but it is also possible to insert either the left or right first knife 5 into the body 100a to make incisions in either the left or right body gizzard meat 100c that sandwiches the thoracic vertebrae.

[0013] As the upper running section of the endless conveyor 3 moves, when the locking device 2 with identification number 1 approaches the second knife 6 as shown in Figure 7, the pair of proximity sensors 9 detects the approach of the pair of sensor dogs 8 and transmits a detection signal to the control device (not shown). The control device recognizes that the locking tool 2 with the identification number 1 has approached the second knife 6 by receiving the proximity detection signals of the sensor dogs 8 simultaneously from the pair of proximity sensors 9 . The control device drives a servo motor (not shown) to lower the neck fixing roller 13 as can be seen from Figures 21 and 22. As shown in Figure 22, both disc-shaped ends of the drum-shaped neck fixing roller 13 engage with a pair of shallow grooves 2a3 in the base plate 2a, positioning the neck fixing roller 13 in the left-right direction. The curved center of the neck fixing roller 13 abuts against the neck portion 100b of the necked body shell 100 and grips the neck portion 100b in cooperation with the upper surface of the base plate 2a. The control device reads from the memory the height information of the cervical vertebrae of the carcass 100 with neck attached that is held by the holding device 2 with identification number 1, drives the servo motor 11 to position the cutting edge of the second knife 6 slightly higher than the height from the reference point of the cervical vertebrae, and then drives the air cylinder 12 to insert the cutting edge of the second knife 6 from the side into the gizzard 100d of the neck 100b, as shown in Figure 22, passing above the cervical vertebrae and penetrating the neck gizzard 100d, and as the holding device 2 moves, it makes a crease in the neck gizzard 100d up to the tip of the neck. The second knife 6 rises just before the tip of the neck to avoid interference with the small bones at the tip of the neck. After passing the neck portion 100b, the second knife 6 moves away from the neck portion 100b to the side. Next, the fastening devices 2 with identification numbers 2 and onwards approach the second knife 6 in sequence, and one of the pair of proximity sensors 9 sequentially detects the approach of a single sensor dog 8. The control device sequentially recognizes the approach of the fastening devices 2 with identification numbers 2 and onwards to the second knife 6, sequentially reads out the cervical vertebrae height information stored in combination with the identification numbers from the memory unit, and drives the fixed roller 13 and the second knife 6 to sequentially score the neck gizzard meat 100d of the neck-on carcass 100 fastened to the fastening devices 2 with identification numbers 2 and onwards, at a position slightly higher than the cervical vertebrae, up to the tip of the neck.

[0014] Near the end of the upper running section of the endless conveyor 3, a cam mechanism (not shown) is activated, causing the locking device 2 to rotate around a vertical axis, and the locking device 2 proceeds to the lower running section with the neck portion 100b of the necked body shell 100 facing forward in the direction of travel. When the fastener 2 advances to the lower running portion, the scored neck skip 100d separates from the remaining portion of the neck 100b and hangs down. The remaining portion of the neck 100b also hangs down above the neck skip 100d. As shown in FIG. 3, when the locking tool 2 approaches the clamping tool 7, a proximity sensor 9 (not shown) attached to the clamping tool 7 detects the approach of the sensor dog 8 and transmits a detection signal to a control device (not shown). As shown in Figures 23 to 26, immediately after the tip of the neck 100b passes the rearward-curved tips of the pair of claws 16, the control device drives the servo motor 14 and the drive mechanism 15 to raise the pair of claws 16 from their lower retracted positions toward the necked carcass 100 and move the pair of claws 16 closer to each other. The necked carcass 100 then moves rearward, causing the pair of claws 16 to move even closer and tightly contact each other, firmly gripping the base of the necked carcass 100d at the body side. The necked carcass 100 then moves further rearward, and the body carcass 100c, which runs from the side to near the thoracic vertebrae, is torn off from the remainder of the body 100a.

[0015] When the fastening tool 2 fastening the necked carcass 100 passes through the clamping tool 7, the pair of claws 16 move away from each other and move downward to a retracted position. The necked carcass meat 100d including the bodyed carcass meat 100c falls downward and is collected. 27, a circular plate 17a having a plurality of fingers 17 fixed radially to its peripheral surface rotates to the right in the figure, and the fingers 17 push the body portion 100a to remove it forward from the deep longitudinal groove 2a1. The remaining portion of the necked body shell 100 drops downward and is collected. Near the end of the lower run, a cam mechanism (not shown) is activated, causing the locking device 2 to rotate around a vertical axis, and when the locking device 2 reaches the start of the upper run, it is oriented in the direction shown in Figure 4.

[0016] The only manual work required is the work of fastening the necked ribs to the fastening devices, which results in high work efficiency. Furthermore, the manual work of fastening the necked ribs to the continuously moving fastening devices allows workers to visually check the approaching fastening devices and prepare for the work in advance, which reduces the psychological burden on the workers and results in high work efficiency. The body skipjack meat 100c is not cut but rather scored from the side up to the vicinity of the thoracic vertebrae, and then the scored neck skipjack meat 100d is pinched and pulled off, so that no fragments of the thoracic vertebrae are mixed into the skipjack meat. The first knife 5 is formed from a thin plate of spring steel, and the blade is sharpened, so that even when it comes into contact with a rib, it flexibly deforms and does not bite into the bone, nor does it scrape the bone. The second knife 6 is formed from a thin plate of spring steel, and the blade is suitably sharpened, so that even when it comes into contact with the cervical vertebrae, it flexibly deforms and does not bite into or scrape the bone. When making incisions using a knife that does not have a sharp edge or a knife with high rigidity, it is necessary to adjust the height of the knife to ensure that it does not come into contact with the ribs or cervical vertebrae. A first rotary blade and a second rotary blade may be provided instead of the first knife 5 and the second knife 6. In this case, the rigidity will be higher than that of a knife, so it is necessary to accurately adjust the height of the rotary blade to reliably avoid interference with the ribs or cervical vertebrae. By making the scoring on the upper running part of the endless belt 3 and clamping the scoring-made neck skipping meat 100d hanging down on the lower running part, the body skipping meat 100c can be effectively peeled off from the necked carcass 100. The pair of first knives 5 score the body part of the skipjack 100c from both sides to the vicinity of the thoracic vertebrae, so that the body part of the skipjack 100c can be easily peeled off from the body shell. Even if the body part of the skipjack 100c is scored from one side to the vicinity of the thoracic vertebrae with a single first knife 5, the body part of the skipjack 100c can be peeled off. By making incisions in the neck gizzard meat 100d from one side to the moving direction of the necked carcass 100 across the cervical vertebrae to the other side, the gizzard meat 100d can be separated from the neck without scraping off the cervical vertebrae. The body 100a of the necked carcass is firmly clamped by the pair of movable arms 2b of the fastener 2, and the neck 100b is gripped by the upper surface of the base 2a and the curved center of the neck fixing roller 13, so that the neck 100b is maintained in an upright state, and the cutting edge of the second knife 6 can easily penetrate the neck giblet meat 100d and make a crease all the way to the tip of the neck. By raising the second knife 6 just before the tip of the neck, interference between the second knife 6 and the small bone at the tip of the neck can be avoided. The height of the thoracic and cervical vertebrae is measured, and the yield of 100c of body skipjack meat is increased by making incisions in the body skipjack meat at a height lower than the height of the thoracic vertebrae, and the yield of 100d of neck skipjack meat is increased by making incisions in the neck at a position slightly higher than the height of the cervical vertebrae. A suitable working mode is for the worker 200 to face in a direction perpendicular to the moving direction of the fastening tool 2 and pull the necked body shell 100 toward himself to fasten the body portion 100a to the fastening tool 2. In this case, when fastening, the body portion 100a is oriented in a direction perpendicular to the moving direction of the fastening tool 2. On the other hand, since the incision work is performed from the body portion 100a toward the neck portion 100b, it is necessary to rotate the body portion 100a by 90° from the side in the moving direction of the fastening tool to the front between the fastening work and the incision work. [Industrial Applicability]

[0017] The present invention is widely applicable to the extraction of chicken gizzard meat. [Explanation of symbols]

[0018] 1. Poultry meat extraction device 2 Locking device 3 Endless conveyor 4. Thoracic and cervical height measurement device 5. First Knife 6. Second Knife 7 Clamping tool 100 Poultry Neck and Body 200 workers

Claims

1. This poultry gizzard meat extracting device is characterized by comprising a fastening tool that fastens the body of the neck-attached carcass and moves continuously, a first blade that cuts into the gizzard meat of the body from the side to the vicinity of the thoracic vertebrae, which are arranged in sequence from the upstream side to the downstream side of the moving path of the fastening tool, a second blade that cuts into the gizzard meat of the neck, and a clamping tool that clamps the scored gizzard meat of the neck.

2. 2. The poultry gizzard removal device according to claim 1, wherein the first and second blades are knives made of thin plates of spring steel and have sharpened edges.

3. The poultry gizzard meat removal device as described in claim 1, characterized in that the locking device is attached to an endless conveyor having an upper running portion and a lower running portion and moves continuously, the first blade and the second blade are arranged facing the upper running portion of the endless conveyor, the clamping device is arranged facing the lower running portion of the endless conveyor, and the locking device supports the neck portion of the neck-on carcass from below in the upper running portion of the endless conveyor.

4. A poultry gizzard meat removal device as described in claim 1, characterized in that a pair of first blades score the gizzard meat in the body from both sides to the vicinity of the thoracic vertebrae in the direction of movement of the neck-attached carcass with the body facing forward, or a single first blade score the gizzard meat in the body from one side to the vicinity of the thoracic vertebrae in the direction of movement of the neck-attached carcass.

5. 2. The poultry gizzard meat removal device according to claim 1, wherein a single second blade makes incisions in the neck gizzard meat from one side of the necked carcass with the body facing forward, across the cervical vertebrae to the opposite side.

6. 6. The poultry neck meat extracting device according to claim 5, further comprising a gripping tool arranged adjacent to the second blade for gripping the neck portion in cooperation with the locking tool.

7. 2. The poultry gizzard meat extracting device according to claim 1, further comprising a height measuring device arranged upstream of the first blade in relation to the movement path of the fastening tool, for measuring the height of the thoracic vertebrae and cervical vertebrae.

8. 2. The poultry gizzard meat extracting device according to claim 1, further comprising a fastener rotating mechanism for changing the orientation of the fastener.

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