A companion wing knife, system and production line for cutting companion wings

Abstract

A companion wing knife (200), system and production line for cutting companion wings (100), wherein the companion wing knife (200) comprises: a fixed part (210), a saddle part (220), and a blade (230); the companion wing cutting system (300) comprises: a companion wing knife holder (310), a companion wing knife (300), and a companion wing separation knife (320); the production line (400) comprises: a positioning system (410), a compaction system (420), a frame system (430), a cutting system (440), and a conveying system (450), wherein the cutting system (440) comprises a circular knife cutting system (441) and a companion wing cutting system (300).

Description

Technical Field

[0001] The present application relates to the field of poultry slaughtering, and in particular to a blade for separating meat and bones from poultry wings, a system using the blade, and a safe and cut-proof poultry wing cutting production line having the system. Background Art

[0002] In the field of poultry slaughtering, various automatic production lines have been widely used. Most of these production lines can realize the function of cutting different parts of poultry to provide to different consumers. The side wings generally refer to the shoulder blade part of the chicken, and its main part is arranged on both sides of the chicken spine. In actual production and sales, the side wings are generally required to be cut off and arranged into a shape similar to chicken wings. In the early stage of side wing processing, it was necessary to use manual cutting to cut the side wings from the chicken skeleton, and further use hand-tearing to separate the side wings from the spine. This manual cutting method is inefficient and labor-intensive.

[0003] In order to overcome the problem of low efficiency of manual cutting, there have been public documents proposing a new type of companion wing cutting machine, the core idea of ​​which is to set up multiple pairs of different types of blades with different placement positions, and use a separation rod device to assist in separating the companion wings after cutting. Generally, these public documents require that each blade and separation rod need to be arranged in sequence on the assembly line according to its type and function, and they must also satisfy a specific spatial position relationship with each other, and the complexity of the mechanism is extremely complex; at the same time, the blades used in these public documents can only be cut horizontally in a single direction, and each blade is set to a different arrangement position so that the final cut part is approximately the shape of the companion wing, and it does not completely fit the structure of the companion wing for cutting, which will cause inaccurate cutting and waste of the companion wing part to a certain extent. If there is a blade or an integrated system that can process the companion wing at one time, it will greatly save the company's equipment procurement, installation, and maintenance costs.

[0004] At the same time, in the automated cutting line of companion wings, in order to fix the companion wings, a plurality of sharp serrated tooth plates are generally arranged along the transportation direction of the production line. After the upstream companion wings are processed, workers need to manually turn the head of the companion wings toward the transportation direction of the production line and insert the bottom of the companion wings downward on the tooth plates, so that the companion wings can be fixed on the production line and transmitted to each cutting knife group for cutting. However, the transmission speed of the production line is extremely high, and these high-speed moving tooth plates will be transformed into high-speed electric saws, which greatly endangers the life safety of workers. Even if workers wear protective gloves to work, the tooth plates will still cut the workers' gloves and further injure the workers' hands. Therefore, if there is a system that can automatically fix the companion wings from upstream (wherein the head direction of the companion wings can be controlled by the upstream production line) to the tooth plates, the production line with such a system will be able to greatly reduce the accident rate. Summary of the invention

[0005] Embodiments of the present application provide a companion wing knife, a system and a production line for cutting companion wings.

[0006] In one embodiment of the present application, a companion wing knife for cutting companion wings is provided, and the companion wing knife includes: a fixing portion, which is used to fix the companion wing knife to a knife holder of a production line. In one embodiment, the vertical cross-section of the fixing portion is rectangular, and in one embodiment, the top of the fixing portion has a screw mounting hole for fixing the companion wing knife to the knife holder of the production line; a saddle-shaped portion, which is vertically connected to the bottom of the fixing portion and has a first arc portion and a second arc portion; the first arc portion and the second arc portion are bent in different directions, and the first arc portion is adapted to the outer contour of the companion wing, and is used to fit the companion wing for cutting. Cutting, the second arc part connects the first arc part with the fixed part; the blade includes an adjacent first cutting edge and a second cutting edge, the outer sides of the first cutting edge and the second cutting edge face the conveying direction of the companion wing on the production line, so as to penetrate into the companion wing after the blade abuts against the companion wing, wherein: the first cutting edge is connected and aligned with the fixed part, and the first cutting edge has a first slope relative to the horizontal plane, so as to reduce and weaken the collision impact of the companion wing on the companion wing knife; the second cutting edge is located at one side edge of the second arc part close to the blade, is arranged perpendicular to the plane where the blade is located, and has a second slope relative to the horizontal plane, so as to facilitate the companion wing knife to cut the companion wing.

[0007] In one embodiment of the present application, a companion wing separation knife is provided. In one embodiment of the present application, the companion wing separation knife is located downstream of the companion wing knife in the production line. The companion wing separation knife includes: a mounting portion for fixing the companion wing separation knife to a knife holder. In one embodiment, the mounting portion is perpendicular to a horizontal plane, and in another embodiment, the mounting portion has a screw mounting hole for fixing the companion wing separation knife to the knife holder; a blade body, which is at an angle to the horizontal plane, and the horizontal cross-section of the blade body is a triangle with a truncated vertex angle, wherein the blade body includes a blade of the companion wing separation knife The blade of the wing separation knife corresponds to the long side of the truncated triangle, and the blade of the wing separation knife is not sharpened; and wherein, the transition portion between the blade body and the mounting portion constitutes a third arc portion; the blade body is used to separate the cut wing into two groups of meat portions and a spine portion; the oblique fold portion corresponds to the short side of the truncated triangle, and the oblique fold portion is a baffle that forms an angle with the horizontal plane, so that the wing is pushed to the side by the oblique fold portion during transportation on the production line, so as to prevent the wing from being transported out of the production line together with the spine due to incomplete separation.

[0008] In one embodiment of the present application, a companion wing cutting system for companion wing separation is provided, comprising: in one embodiment of the present application, the first stage of the companion wing cutting system includes the companion wing knife provided in the embodiment of the present application; in another embodiment, the second stage of the companion wing cutting system includes the companion wing separation knife provided in the embodiment of the present application; in yet another embodiment, the companion wing cutting system is composed of a companion wing knife provided in the embodiment of the present application and a cascade of companion wing separation knives, wherein the companion wing knife is located upstream of the companion wing separation knife.

[0009] In one embodiment of the present application, a positioning system is provided, which is inclined with respect to the horizontal plane to receive the companion wing dropped from the upstream automatic production line, wherein the head of the companion wing has been set by the upstream production line to be transported toward the upstream downstream production line; the positioning system comprises: a track, which runs through the entire length of the positioning system and is located at the bottom of the positioning system, and is used for conveying the companion wing in the positioning system; a belt conveyor system, which is wrapped by a closed shell and is located as a whole above the track, and a groove is provided at the bottom of the shell. The belt conveyor system uses a belt with a plate-like protrusion on the outer edge, the height of the plate-like protrusion is higher than the depth of the groove, and the width of the plate-like protrusion is smaller than the width of the groove, so that the plate-like protrusion can pass through the groove and push the companion wing located below the groove and on the track.

[0010] In one embodiment of the present application, a production line for cutting companion wings is provided, comprising: a positioning system according to an embodiment of the present application, positioned upstream of the production line and tilted with respect to the horizontal plane to receive the companion wings dropped from the upstream automatic production line, wherein the heads of the companion wings have been set by the upstream production line to be transported toward the production line; a compaction system, fixed on the positioning system and positioned upstream of the positioning system, so that the companion wings are directly compacted by the compaction system at the initial end of the positioning system after falling into the positioning system; a rack system, the rack system is located below the positioning system to provide support for various systems of the production line; a cutting system, positioned above the rack system and downstream of the positioning system to cut the companion wings. In one embodiment, the cutting system includes: a circular knife cutting system, which is positioned above the frame system and downstream of the positioning system to cut the spine of the companion wing; the companion wing cutting system provided in the embodiment of the present application is located above the frame system and downstream of the circular knife cutting system. In one embodiment, the companion wing cutting system includes a companion wing knife for cutting the companion wing and separating the flesh and bones; a conveying system, which is located above the frame system, positioned at the connection between the positioning system and the frame system, and passes through the circular knife cutting system and the companion wing cutting system. The conveying system transports the companion wing from the upstream to the downstream of the frame to complete the separation of the flesh and bones of the companion wing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] To facilitate the explanation of the embodiments of the present application, the following definitions are used: "upstream" refers to the starting end of the production line when the companion wing enters the production line, "downstream" refers to the end of the production line when the companion wing is about to leave the production line, and "front", "in front" and "in front of" are the directions in which the observer observes from the downstream of the production line to the upstream - that is, the reverse direction of the movement of the production line; "left", "left side" and "left side" are the left side direction of the "front" - that is, the right side direction of the movement direction of the production line; similarly, "right", "right side" and "right side" are the right side direction of the "front" - that is, the left side direction of the movement direction of the production line.

[0012] Figure 1a is a front view of the companion wing when bone and flesh separation is not performed in the embodiment of the present application;

[0013] Figure 1b This is a left view of the companion wing when bone and flesh separation is not performed in the embodiment of the present application;

[0014] Figure 1c is a top view of the companion wing when bone and flesh separation is not performed in the embodiment of the present application;

[0015] Figure 2a is a front view of a companion wing knife in an embodiment of the present application;

[0016] Figure 2b It is a left view of the companion wing knife in the embodiment of the present application;

[0017] Figure 2c is a top view of the companion wing knife in the embodiment of the present application;

[0018] Figure 2d This is a view of the companion wing knife in the embodiment of the present application observed from the left front;

[0019] Figure 3a is a front view of a companion wing separation knife in an embodiment of the present application;

[0020] Figure 3b It is a left view of the companion wing separation knife in the embodiment of the present application;

[0021] Figure 3c is a top view of a companion wing separation knife in an embodiment of the present application;

[0022] Figure 3d 3 is a three-view diagram of a companion wing separation knife in an embodiment of the present application, showing the dimensions of various components of the companion wing separation knife in the embodiment;

[0023] Figure 4a is a front view of a companion wing cutting system in an embodiment of the present application;

[0024] Figure 4b is a left view of the companion wing cutting system in an embodiment of the present application;

[0025] Figure 4c is a top view of the companion wing cutting system in an embodiment of the present application;

[0026] Figure 5a is a front view of a production line according to an embodiment of the present application;

[0027] Figure 5b It is a left view of the production line of the embodiment of the present application;

[0028] Figure 5c is a top view of a production line according to an embodiment of the present application;

[0029] Figure 6 is a close-up view of a tooth plate mounted to a transmission chain according to an embodiment of the present application;

[0030] Figure 7a is a view of the positioning system of an embodiment of the present application observed from the left front;

[0031] Figure 7b yes Figure 7a A partial enlarged view of .

[0032] List of reference numerals:

[0033] 100 companion wing; 110 spine; 200 companion wing knife; 210 fixing part; 211 screw mounting hole; 220 saddle part; 221 first arc part; 222 second arc part; 230 blade; 231 first cutting edge; 232 second cutting edge; 300 companion wing cutting system; 310 companion wing knife holder; 320 companion wing separation knife; 3210 mounting part; 3220 blade; 3221 separation knife blade; 3222 third arc part; 3230 oblique folding part; 400 production line; 410 Positioning system; 411 track; 412 belt conveyor system; 4121 housing; 4122 groove; 4123 belt; 41231 plate-like protrusion; 420 compaction system; 421 box; 422 sensor; 423 compaction plate; 424 crankshaft connecting rod; 430 rack system; 431 wing discharge port; 432 spine discharge port; 440 cutting system; 441 circular knife cutting system; 4411 circular blade; 4412 circular knife holder; 450 conveying system; 451 transmission chain; 452 tooth plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] For the convenience of description, in the companion wing cutting system 300 provided in the embodiment of the present application, the companion wing knife 200 is described as being followed by the companion wing separation knife 320 to further separate the flesh and bones of the cut companion wing. However, those skilled in the art can understand that the downstream of the companion wing knife 200 does not necessarily need to be subsequently processed by the companion wing separation knife 320, and it can also be cascaded with various separation devices in the prior art. For example, it can be cascaded with a separation device having multiple sets of separation rods.

[0036] Similarly, for the purpose of explanation, the companion wing knife 200 and the companion wing separation knife 320 in the embodiment of the present application are fixed to an appropriate tool holder by the cooperation of screws and screw mounting holes 211, but those skilled in the art can understand that the method for fixing the blade to the tool holder is not limited to screw fixing or thread fixing, as long as there is an appropriate method to fix the blade to the tool holder on the production line.

[0037] Similarly, for the purpose of explanation, in the companion wing cutting system 300 provided in the embodiment of the present application, the companion wing separation knife 320 is described as separating the flesh and bones of the companion wing 100 cut by the companion wing knife 200. However, those skilled in the art will understand that the companion wing separation knife 320 does not necessarily need to follow the companion wing knife 200, and it may also follow various cutting systems in the prior art, for example, in a multi-cutting blade system having multiple different types and deployed in different forms.

[0038] Similarly, for the purpose of explanation, the positioning system 410 provided in the embodiment of the present application is described as being cascaded with the cutting system 440 provided in the embodiment of the present application thereafter, but those skilled in the art will appreciate that the next level of the positioning system 410 may be cascaded with other systems. For example, in the field of wing cutting, a wing cutting system having multiple sets of blades and multiple sets of separation rods may be cascaded, or it may be cascaded with production lines in other fields - as long as the positioning system 410 can position and compact the poultry before they enter these production lines.

[0039] Similarly, for the purpose of illustration, the companion wings 100 of the embodiment of the present application are shown as chicken companion wings, but those skilled in the art can understand that the companion wing knife 200, companion wing cutting system 300, and production line 400 provided in the embodiment of the present application can be used to cut the companion wings of other poultry, and are not limited to cutting the chicken companion wings described in the embodiment of the present application.

[0040] Similarly, for the purpose of explanation, in the drawings of the embodiments of the present application, the cutting system 440 is shown as being visible to the user, but those skilled in the art will appreciate that each subsystem in the cutting system 440 may be provided with a closed housing to enclose it.

[0041] Figure 1a to Figure 1c A schematic diagram of a chicken wing is shown, consisting of Figure 1a It can be seen that the belly of the chicken wing has been cut open on the upstream production line, the internal organs have been removed, the chicken feet, tail and head have also been cut and removed, leaving the chicken spine 110 and the surrounding shoulder blade part, which is the chicken wing. In the actual meat consumption market, it is generally required to cut the wing into the shape of chicken legs to facilitate sales by manufacturers. Therefore, the cutting of the chicken wing is not simply cutting along the direction of the spine 110. The cutting line is roughly to cut from the spine 110 first, and then gradually deviate to the outside of the spine 110. Figure 1b and Figure 1c In the example, the cutting line of the companion wing is shown using the center line and in Figure 1c In the figure, it can be clearly seen that the shape formed by the center line and the edges on both sides of the chicken wing is similar to the shape of a chicken leg. For simplicity, the cutting line of the wing is shown as a straight line starting from the spine 110 and gradually offset to both sides, but the actual cutting line is extremely complex, so in the prior art, multiple sets of blades with different arrangements and types are required to cut the wing.

[0042] When the companion wing 100 needs to be separated from the flesh and bones by the companion wing knife 200, the companion wing 100 needs to be pre-processed, that is, the head of the companion wing 100 faces the transmission direction of the production line. In some cases, it is also necessary to pre-cut along the spine 110 of the companion wing 100; assuming that the spine 110 of the companion wing 100 has been pre-cut, when the companion wing 100 contacts the tip of the companion wing knife 200, that is, the first cutting edge 231, the fixed part 210 just corresponds to the cutting line of the spine 110 of the companion wing 100 in the previous cutting step; when the companion wing 100 continues to move forward, it will contact the second cutting edge 232, and the second cutting edge 232 will cut the companion wing obliquely; Figure 2b and Figure 2c Since the second cutting edge 232 continues to extend outward, the corresponding cutting line also continues to extend outward; when the companion wing 100 contacts the junction of the second cutting edge 232 and the first arc portion 221, the cutting depth is large enough, and no further cutting is required by any blade, and only the first arc portion 221 needs to cut along the existing cutting line.

[0043] Figure 2a to Figure 2d 2 is a view of the companion blade 200 installed on the left side of the blade holder according to an embodiment of the present application, and is shown as having two screw mounting holes 211. The center of the first arc portion 221 is located at the lower right, and the center of the second arc portion 222 is located at the upper left. The centers of the two arc portions are located on both sides of the main body of the companion blade 200. The first arc portion 221 extends counterclockwise, while the second arc portion 222 extends clockwise. Figure 2b , Figure 2d It can be seen that the first cutting edge 231 and the second cutting edge 232 have a common starting end point, the first cutting edge 231 extends in a vertical direction, and the second cutting edge 232 extends toward the side of the companion wing knife 200 until it reaches the first arc portion 221, and the second cutting edge has a certain inclination to cut the companion wing in accordance with the contour of the companion wing.

[0044] In one embodiment of the present application, the horizontal distance from the farthest end of the saddle portion 220 to the fixing portion 210 ranges from 15 mm to 60 mm;

[0045] In one embodiment of the present application, the distance between the bottom end of the saddle portion 220 and the top end of the fixing portion 210 ranges from 30 mm to 90 mm;

[0046] In one embodiment of the present application, the thickness of the companion blade 200 ranges from 1 mm to 5 mm;

[0047] In one embodiment of the present application, the radius of the first arc portion 221 is 10 mm, and the radius of the second arc portion 222 is 50 mm;

[0048] In one embodiment of the present application, the first slope is 15°, and the second slope is 10°;

[0049] In one embodiment of the present application, the horizontal distance from the farthest end of the saddle portion 220 to the fixed portion 210 is 32 mm;

[0050] In one embodiment of the present application, the distance between the bottom end of the saddle portion 220 and the top end of the fixing portion 210 is in the range of 56.9 mm;

[0051] In one embodiment of the present application, the thickness of the companion blade 200 is in the range of 2.5 mm.

[0052] Figure 3a to Figure 3c 3 is a view of the companion wing separation knife 320 in the embodiment of the present application, Figure 3d This is an engineering view of a wing-separating knife in one embodiment of the present application, on which the dimensions of the wing-separating knife are marked. Figure 3a In the figure, it can be seen that the blade 3220 is an inclined plane, which is to fit the inclined cutting line of the companion wing 100 and also facilitate the sideways tilting of the companion wing 100 after the separation of the flesh and bones. In contrast to the companion wing knife 200, the companion wing separation knife 320 does not need to strictly fit the dividing line between the companion wing 100 and the spine 110, but only needs to fit roughly, and the incomplete fit is conducive to hindering the advancement of the companion wing 100 and separating it from the spine 110. Figure 3d As shown, the blade 3221 of the companion wing separation knife has an inclination of 10°, but is not sharpened. This is because the companion wing 100 itself has been cut, and sharpening the blade will not hinder the advancement of the companion wing 100; when the companion wing 100 has advanced to the oblique fold portion 3230, the companion wing 100 with a larger cross-sectional area will be blocked by the oblique fold portion 3230, while the spine 110 will pass through Figure 3d The gap between the oblique fold portion 3230 and the mounting portion 3210 shown in the top view continues to advance.

[0053] exist Figure 3dIn the embodiment shown, it can be seen that the various parameters of the companion wing separation knife 320 of this embodiment are (the numerical results are accurate to integers): the angle between the blade body 3220 and the mounting part 3210 is 110°; the length of the companion wing separation knife blade 3221 is 136mm, the length of the horizontal projection is 130mm, and the slope is 10°; the angle between the oblique folded part 3230 and the horizontal plane is 80°, the length is 60mm, and the height is 15mm; the length of the companion wing knife holder 310 is 131mm and the height is 20mm; the vertical height from the mounting part 3210 to the bottom end of the companion wing separation knife blade 3221 is 46mm; the vertical distance from the bottom end of the third arc part 3222 to the top end of the mounting part 3210 is 24mm; the length from the bottom of the oblique folded part 3230 to the horizontal projection of the companion wing separation knife blade 3221 is 156mm; the length of the companion wing separation knife 320 is 168mm.

[0054] Figures 4a to 4c The companion wing cutting system 300 provided in the embodiment of the present application includes the companion wing knife 200 and the companion wing separation knife 320 provided in the embodiment of the present application. Figure 4a as well as Figure 4c It can be seen that the companion wing knife 200 and the companion wing separation knife 320 both include a left knife and a right knife, and Figure 4b In the embodiment, the companion wing knife 200 and the companion wing separation knife 320 are connected to the companion wing knife holder 310 by screws.

[0055] Figure 5a to Figure 5c It is a production line 400 provided in an embodiment of the present application, on which a positioning system 410 and a companion wing cutting system 300 provided in an embodiment of the present application are integrated.

[0056] In some cases, the positioning system 410 is not necessary, and its installation depends on the user's requirements for cost and equipment complexity. In the absence of the positioning system 410, workers are required to manually place the companion wing 100 on the conveying system 450, specifically, the head of the companion wing 100 faces the conveying direction of the production line 400, and the belly of the companion wing 100 is inserted into the tooth plate 452. Figure 6 A close-up of the tooth plate 452 installed on the transmission chain 451 is shown. Since the sawtooth shape of the tooth plate 452 itself is easy to threaten the safety of the workers' hands, and the transmission chain 451 moves at a very high speed, the workers may easily put their hands near the moving tooth plate 452 without paying attention, and thus be injured or even have their fingers cut off by the high-speed moving tooth plate 452. The significance of the positioning system 410 is that it allows the entire process of the production line to be carried out safely, and further improves the automation level of the slaughtering production line and reduces the need for manual operation.

[0057] The upstream production line can roughly control the direction of the companion wing 100. For example, the upstream production line can simultaneously clamp the companion wing 100 of a chicken piece so that its head faces forward, and then directly release the companion wing 100, so that the companion wing 100 falls with its head facing forward.

[0058] When the companion wing 100 of the upstream production line falls, it is necessary to compact it in time to avoid changes in the direction of its abdomen and head. The function realized by the compaction system 420 is to compact the companion wing 100 on the track 411. The compaction system 420 has a sensor 422. The sensor 422 can be, for example, a light sensor, which determines whether a companion wing 100 has fallen by detecting changes in the reflected light intensity; when it is determined that a companion wing 100 has fallen, the sensor 422 controls the compaction plate 423 to approach the track 411 by controlling the crankshaft connecting rod 424, thereby compacting the companion wing 100. In order to prevent the companion wing 100 from getting stuck on the track 411 when sliding onto the conveying system 450, an active drive mechanism is also required to push the companion wing 100 to move toward the conveying system 450. Therefore, the embodiment of the present application also provides a belt conveyor system 412 wrapped by a shell 4121 in the positioning system 410. See. Figure 7a , which shows a belt conveyor system 412 with a housing 4121 hidden. It can be seen from the figure that the belt conveyor system 412 is located above the track 411 as a whole, and a groove 4122 is also opened at the bottom of the belt conveyor system 412. Figure 7b As shown, the plate-like protrusion 41231 on the outer edge of the belt 412 can pass through the groove 4122. Through the contact between the plate-like protrusion 41231 and the companion wing 100 and the rotation of the belt 412, the companion wing 100 can pass through the track 411 unimpeded without being stuck on the track 411 due to, for example, friction with the track 411.

[0059] When the companion wing 100 slides to the end of the positioning system 410, it has been compacted on the conveying system 450 in the direction of transportation with its belly facing downward and its head facing the production line 400. Under the conveying of the conveying system 450, the companion wing 100, as described above, first passes through the circular knife cutting system 441 to achieve the preliminary cutting of the spine 110; then passes through the companion wing cutting system 300 to achieve the complete separation of the companion wing 100 and the spine 110. The companion wing 100, as described above, will naturally fall from the blade 3220 and then reach the companion wing discharge port 431; the spine 110 will continue to move to the end of the rack system 430 along with the transmission chain 451, and then fall to the spine discharge port 432 at the end of the rack system 430.

[0060] The above is an explanation of the embodiments of the present application, but the present application is not limited to the above-mentioned implementation modes. Technical personnel familiar with the art may also make various equivalent modifications or substitutions under the shared conditions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A companion wing knife (200) for cutting companion wings (100), characterized in that: include: A fixing part (210) is used to fix the companion blade (200) to a blade holder of a production line; A saddle-shaped portion (220), the saddle-shaped portion (220) being vertically connected to the bottom of the fixing portion (210), and having a first circular arc portion (221) and a second circular arc portion (222); The first arc portion (221) and the second arc portion (222) are bent in different directions, the first arc portion (221) is adapted to the outer contour of the companion wing (100) and is used to fit the companion wing (100) for cutting, and the second arc portion (222) connects the first arc portion (221) and the fixing portion (210); A blade (230), the blade (230) comprising a first cutting edge (231) and a second cutting edge (232) adjacent to each other, the outer sides of the first cutting edge (231) and the second cutting edge (232) facing the conveying direction of the companion wing (100) on the production line, so as to penetrate into the companion wing (100) after the blade (230) abuts against the companion wing (100), wherein: The first cutting edge (231) is connected to and aligned with the fixing portion (210) and has a first slope relative to a horizontal plane, so as to reduce and weaken the collision impact of the companion wing (100) on the companion wing blade (200); The second cutting edge (232) is located at a side edge of the second arc portion (220) close to the blade (230) and has a second slope relative to the horizontal plane to facilitate the companion wing knife (200) to cut the companion wing (100).

2. The companion blade (200) according to claim 1, characterized in that: The radius of the first arc portion (221) ranges from 10 mm to 80 mm, and the radius of the second arc portion (222) ranges from 2 mm to 30 mm; The first slope has a value range of 10° to 40°, and the second slope has a value range of 5° to 45°; The horizontal distance between the farthest end of the saddle-shaped portion (220) and the fixing portion (210) ranges from 15 mm to 60 mm; The distance between the bottom end of the saddle-shaped portion (220) and the top end of the fixing portion (210) ranges from 30 mm to 90 mm; The thickness of the companion wing blade (200) ranges from 1 mm to 5 mm.

3. The companion blade (200) according to claim 2, characterized in that: The radius of the first arc portion (221) is 10 mm, and the radius of the second arc portion (222) is 50 mm; The first slope is 15°, and the second slope is 10°. The horizontal distance from the farthest end of the saddle-shaped portion (220) to the fixing portion (210) is 32 mm; The distance between the bottom end of the saddle-shaped portion (220) and the top end of the fixing portion (210) is 56.9 mm; The thickness of the companion wing blade (200) is in the range of 2.5 mm.

4. A companion wing cutting system (300) for separating a companion wing (100), characterized in that: include: A knife holder for a wing knife (310); The companion wing knife (200) according to any one of claims 1 to 3; A companion wing separation knife (320) is located downstream of the companion wing knife (200) in the production line, wherein the companion wing separation knife (320) comprises: A mounting portion (3210) for fixing the companion wing separation knife (320) to the companion wing knife holder (310); A blade body (3220), wherein the blade body (3220) forms an angle with a horizontal plane, and a horizontal cross section of the blade body (3220) is a triangle with a truncated vertex, wherein the blade body (3220) comprises a companion wing separation knife blade (3221), wherein the companion wing separation knife blade (3221) corresponds to the long side of the truncated triangle, and the companion wing separation knife blade (3221) is not sharpened; and wherein a transition portion between the blade body (3220) and the mounting portion (3210) constitutes a third arc portion (3222); the blade body (3220) is used to completely separate different portions of the companion wing (100) cut by the companion wing knife (200); An oblique folded portion (3230), the oblique folded portion (3230) corresponds to the short side of the truncated triangle, and the oblique folded portion (3230) is a baffle that forms an angle with the horizontal plane, so that the companion wing (100) is pushed to the side by the oblique folded portion (3230) during transportation on the production line, so as to prevent the companion wing (100) from being transported out of the production line together with the spine due to not being completely separated.

5. The companion wing cutting system (300) according to claim 4, characterized in that: The angle formed by the blade body (3220) and the mounting portion (3210) is 110°; The blade (3221) of the companion wing separation knife has a length of 136 mm along its extension direction, a length of 130 mm in horizontal projection, and a slope of 10°; The angle formed between the oblique folded portion (3230) and the horizontal plane is 80°, the length of the horizontal projection is 60 mm, and the height is 15 mm; The wing blade holder (310) has a length of 131 mm and a height of 20 mm; The vertical height from the mounting portion (3210) to the bottom of the blade (3221) of the companion wing separation knife is 46 mm; The vertical distance from the bottom end of the third arc portion (3222) to the top end of the mounting portion (3210) is 24 mm; The length of the horizontal projection from the bottom of the oblique folded portion (3230) to the blade (3221) of the companion wing separation knife is 156 mm; The length of the companion wing separation knife (320) is 168 mm.

6. A production line (400) for cutting companion wings (100), characterized in that: include: A positioning system (410), the positioning system (410) is positioned upstream of the production line (400) and is kept inclined with respect to the horizontal plane to receive the companion wing (100) dropped from the upstream automatic production line, wherein the head of the companion wing (100) has been set by the upstream production line to be transported toward the production line (400); a compaction system (420), the compaction system (420) being fixed on the positioning system (410) and positioned upstream of the positioning system (410), so that the companion wing (100) is directly compacted by the compaction system (420) at the initial end of the positioning system (410) after falling into the positioning system (410); a rack system (430), the rack system being located below the positioning system (410) and providing support for various systems of the production line (400); A cutting system (440), the cutting system (440) is positioned above the frame system (430) and downstream of the positioning system (410) to cut the companion wing (100), the cutting system (440) comprising: A circular knife cutting system (441), the circular knife cutting system (441) is positioned above the frame system (430) and downstream of the positioning system (410) to cut the spine of the companion wing (100); A companion wing cutting system (300), the companion wing cutting system (300) is located above the frame system (430) and downstream of the circular knife cutting system (441), the companion wing cutting system (300) comprises a companion wing knife (200) according to any one of claims 1 to 3; The conveying system (450) is located above the frame system (430), positioned at the connection between the positioning system (410) and the frame system (430), and passes through the circular knife cutting system (441) and the companion wing cutting system (300). The conveying system (450) conveys the companion wing (100) from the upstream to the downstream of the frame, thereby completing the bone and meat separation of the companion wing (100).

7. The production line (400) according to claim 6, characterized in that: The positioning system (410) comprises: A track (411), the track (411) runs through the entire length of the positioning system (410) and is located at the bottom of the positioning system (410), and is used for transporting the companion wing (100) in the positioning system (410); A belt conveyor system (412), wherein the belt conveyor system (412) is wrapped by a closed shell (4121) and is entirely located above the track (411), wherein a groove (4122) is provided at the bottom of the shell (4121), and wherein the belt conveyor system (412) uses a belt (4123) having a plate-like protrusion (41231) on the outer edge, wherein the height of the plate-like protrusion (41231) is higher than the depth of the groove (4122), and the width of the plate-like protrusion (41231) is smaller than the width of the groove (4122), so that the plate-like protrusion (41231) can pass through the groove (4122) and push the companion wing (100) located below the groove (4122) and located on the track (411).

8. The production line (400) according to claim 7, characterized in that: The compaction system (420) comprises: a casing (421), the casing (421) enclosing a portion of the compaction system (420); A sensor (422), the sensor (422) is located in the box (421), detects the falling of the companion wing (100), and feeds back to the compaction system (420); A compacting plate (423), the compacting plate (423) being located outside the box (421) and close to the track (411), and the plane where the compacting plate (423) is located is parallel to the plane of the track (411); A crankshaft connecting rod (424), wherein the crankshaft connecting rod (424) is electrically connected to the sensor (422), and the crankshaft connecting rod (424) is connected to the compaction plate (423) and the sensor (422). The sensor (422) provides a feedback signal to the compaction system (420), and the compaction system (420) compacts the companion wing (100) onto the track (411) by controlling the crankshaft connecting rod (424) and then through the compaction plate (423).

9. The production line (400) according to claim 6, characterized in that: The conveying system (450) is a transmission chain (451), and the conveying system (450) includes two parallel transmission chains (451), and tooth plates (452) are evenly arranged along the extending direction of the transmission chains (451). The companion wings (100) are compacted onto the tooth plates (452) and transported by the transmission chains (451) through the cutting system (440) and finally reach the downstream of the production line (400).

10. The production line (400) according to claim 9, characterized in that: The circular knife cutting system (441) comprises: A circular blade (4411), wherein the number of the circular blades (4411) is two, and the circular blades (4411) are respectively vertically positioned above each of the transmission chains (451) to preliminarily cut the spine of the companion wing (100); A circular knife holder (4412), wherein the circular knife holder (4412) provides support for the circular blade (4411) so that the circular blade (4411) is suspended above the transmission chain (451).

11. The production line (400) according to claim 6, characterized in that: The companion wing cutting system (300) further comprises a companion wing knife holder (310) and a companion wing separating knife (320) according to any one of claims 4 or 5.

12. The production line (400) according to claim 6, characterized in that: The rack system (430) includes two meat discharge ports (431) arranged at vertical positions in the conveying direction of the production line (400) and a spine discharge port (432) arranged at the terminal end of the moving direction of the production line (400). The meat discharge port (431) and the spine discharge port (432) are used to receive different parts of the cut companion wings (100).

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