A hanging rotary machine for slaughtering meat ducks

Abstract

This invention discloses a hanging transfer machine for slaughtering ducks, relating to the field of duck slaughtering equipment. The technical solution includes a duck leg hanging production line and a duck wing hanging production line. A duck leg cutter is installed on one side of the duck leg hanging production line. A hanging transfer machine is located between the duck leg and duck wing hanging production lines. The hanging transfer machine includes a frame with two opposing, waist-shaped guide rails fixedly mounted on it. Each guide rail has two straight sections and two curved sections connecting the straight sections. Each guide rail contains a circulating transmission chain with multiple connecting rods evenly spaced along its running direction. The two opposing connecting rods jointly support a duck head clamping assembly for clamping the duck head. The advantages of this invention are: it eliminates the need for the duck to touch the ground, achieving a fully automatic transfer from duck leg hanging to duck wing hanging; it has a simple structure and requires no external power; it significantly reduces manual intervention, saving more than 50% of labor costs.

Description

Technical Field

[0001] This invention relates to the field of duck slaughtering equipment, and in particular to a rotating machine for duck slaughtering. Background Technology

[0002] In existing duck slaughtering and processing technology, ducks are usually suspended by their legs on a duck leg hanging assembly line, and go through processes such as bleeding, scalding, plucking, and eviscerating before entering the leg cutting stage. In this stage, the duck leg cutting machine removes the duck's feet, and the duck body, having lost its leg support, falls off the hanging rack and directly onto the conveyor belt or collection platform below.

[0003] Subsequently, the fallen ducks must be manually picked up and their wings manually hung on the duck wing hanging assembly line for subsequent processes such as evisceration, rinsing, and pre-cooling. This transfer process has the following prominent problems: 1. High labor intensity and high labor costs: It usually requires two skilled workers to work together, one to hold the duck and the other to hang the wings. The operation is fast-paced and highly repetitive, which can easily cause fatigue. 2. High technical requirements: Workers need to accurately judge the position of the duck wings and quickly hang them on hooks with fixed spacing. This requires a high degree of operational proficiency and a long training period for new employees. 3. High risk: After the ducks land, they come into contact with the conveyor belt or platform, making them highly susceptible to cross-contamination, which does not meet the strict food safety and hygiene requirements of modern poultry slaughter. 4. Significant efficiency bottleneck: The speed of manual loading and unloading is limited and it is difficult to match the speed of high-speed automated production lines, which becomes a constraint on the overall production capacity. Therefore, the only way to match the speed of the production line is to increase the number of workers, resulting in high labor costs. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a hanging rotating machine for slaughtering meat ducks.

[0005] The technical solution includes a duck leg hanging production line and a duck wing hanging production line. A duck leg cutting machine is installed on one side of the duck leg hanging production line, and a hanging rotating machine is installed between the duck leg hanging production line and the duck wing hanging production line. The hanging rotating machine includes a stand, and two opposing waist-shaped guide rails are fixedly installed on the stand. Each guide rail has two straight parts and two curved parts connecting the straight parts. Each of the guide rails is provided with a circulating transmission chain, and multiple connecting rods are equally spaced along the direction of operation on the transmission chain; The two connecting rods, which are positioned opposite each other, jointly support a set of duck head clamping components for clamping the duck head.

[0006] Preferably, the duck head clamping assembly includes a hanger, and the upper and lower ends of the hanger are respectively connected to corresponding connecting rods; The hanger is circular, with a rotating bracket rotatably mounted on its inner wall. The middle of the rotating bracket is fixedly connected to the base via an adapter. Two meshing intermediate gears are rotatably mounted on the base. A swing arm is fixedly mounted on each intermediate gear. The two swing arms are arranged opposite to each other. A clamping arm is rotatably connected to the movable end of each swing arm. The free end of the clamping arm is provided with a clamp for holding the duck's head. A central rod is rotatably mounted on the base, with one end of the central rod rotatably connected to the base and the other end rotatably connected to the middle of the clamping arm.

[0007] Preferably, a driven gear is rotatably mounted on the base, the driven gear is coaxially fixed with one of the intermediate gears, a driving gear meshes with one side of the driven gear, and the driving gear is rotatably connected to the base; A worm gear is coaxially fixed on the drive gear, and the worm gear meshes with a worm rotatably mounted on the base. An output bevel gear is fixedly mounted on one end of the worm, and an input bevel gear meshes with the output bevel gear. The input bevel gear is rotatably connected to the base, and an input gear is fixedly mounted on the input bevel gear.

[0008] Preferably, a clamping drive rack is fixedly installed on each of the two straight sections of the guide rail, and the teeth of the two clamping drive racks are arranged opposite to each other; When the duck head clamping assembly moves with the transmission chain to any position of the clamping drive rack, the input gear meshes with the clamping drive rack, thereby driving the clamping arm to perform clamping or releasing actions; When the duck head clamping assembly moves to the clamping drive rack near the duck leg suspension line, the input gear meshes with the clamping drive rack, causing the clamping arm to close and clamp the duck head; when the duck head clamping assembly moves to the clamping drive rack near the duck wing suspension line, the input gear meshes with the clamping drive rack, causing the clamping arm to open and release the duck head.

[0009] Preferably, a rotating driven gear is fixedly provided on one side of the rotating bracket, and a rotating driving gear meshes with the rotating driven gear, and the rotating driving gear is rotatably connected to the hanger; A limit rod is slidably provided on the hanger. The end of the limit rod facing the flip driven gear has a limit tooth that meshes with the flip driven gear. A tension spring is provided between the upper end of the limit rod and the hanger so that the limit tooth is constantly engaged with the flip driven gear to limit the rotation of the rotating bracket.

[0010] Preferably, a roller is rotatably provided at the upper end of the limiting rod; A flipping drive rack is fixedly installed on the inner side of the curved part of each guide rail, and the front end of the flipping drive rack along the running direction of the transmission chain is provided with a guide angle. When the duck head clamping assembly holding the duck head enters the curved section and contacts the flip drive rack, the guide angle of the flip drive rack pushes the roller, causing the limit rod to slide upward against the tension spring force, thus disengaging the limit tooth from the flip driven gear. At this time, the flipping drive gear meshes with the flipping drive rack, and under the drive of the transmission chain, it drives the flipping driven gear and the rotating bracket to rotate, so that the duck head flips from the initial facing direction to the upward state; After the duck head is released, the duck head clamping assembly is triggered by the flipping drive rack of another guide rail bend, which again triggers the limit release and drives the rotating bracket to rotate in the opposite direction, so that the rotating bracket returns to its initial orientation, realizing reciprocating cycle operation.

[0011] Preferably, a duck wing guide is provided between the hanging machine and the duck wing hanging production line. The duck wing guide includes a frame and a guide rail installed on the frame. The two ends of the guide rail are the duck inlet end and the duck outlet end, respectively. Two horizontally arranged guide rods are fixedly provided on the guide rail. Each guide rod has an arc-shaped bend at the end near the duck inlet end.

[0012] Preferably, the distance between two adjacent duck head clamping components on the transmission chain is equal to the distance between adjacent duck hanging stations on the duck leg hanging production line, and equal to the distance between adjacent duck hanging stations on the duck wing hanging production line.

[0013] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: 1. Achieve suspended transport of ducks throughout the entire process, eliminating ground contamination: Before the duck legs are cut, the duck head is held by the duck head clamping component, and after the feet are cut, the duck body is supported by the clamping mechanism. The duck does not come into contact with the ground or conveyor belt throughout the process, effectively avoiding cross-contamination, significantly improving food safety and hygiene levels, and meeting modern poultry slaughter standards. 2. Significantly reduces reliance on manual labor and saves labor costs: Traditional processes require two or more people to complete operations such as picking up ducks, breaking wings, and hanging them. This invention, through automated receiving, flipping, and releasing, only requires one person to assist in aligning the duck wings to complete the transfer and hanging, reducing the number of workers by more than 50% and significantly reducing labor costs and management difficulty. 3. Improve the efficiency and cycle time matching of the duck head clamping component: The spacing between the duck head clamping component and the upstream and downstream production line stations is strictly consistent. With the help of the rack and pinion triggering mechanism, continuous operation is achieved, seamless connection with the high-speed production line is made, and the cycle time interruption caused by manual operation is eliminated. 4. Reliable structure, easy maintenance, and adaptable to harsh environments: The clamping and flipping actions are all purely mechanical transmissions, resistant to blood and water, easy to clean, and have a low failure rate, making them particularly suitable for the high humidity and high dirt conditions in slaughterhouses. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the usage state of an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the frame and guide rail according to an embodiment of the present invention.

[0017] Figure 4 for Figure 3 Enlarged schematic diagram of part A.

[0018] Figure 5 This is a schematic diagram of the duck head clamping assembly according to an embodiment of the present invention. Figure 1 .

[0019] Figure 6 This is a schematic diagram of the duck head clamping assembly according to an embodiment of the present invention. Figure 2 .

[0020] Figure 7 This is a schematic diagram of the internal structure of the base according to an embodiment of the present invention.

[0021] Figure 8 This is a schematic diagram of a duck wing guide according to an embodiment of the present invention.

[0022] The attached diagrams are labeled as follows: 1. Duck leg hanging production line; 2. Duck wing hanging production line; 3. Duck leg cutting machine; 4. Hanging and rotating machine; 5. Stand; 6. Guide rail; 7. Connecting rod; 8. Duck head clamping assembly; 9. Hanger; 10. Rotating bracket; 11. Base; 12. Intermediate gear; 13. Swing arm; 14. Clamping arm; 15. Clamping head; 16. Intermediate rod; 17. Driven gear; 18. Driving gear; 19. Worm gear; 20. Worm; 21. Output bevel gear; 22. Input bevel gear; 23. Clamping drive rack; 24. Tilting driven gear; 25. Tilting drive gear; 26. Limiting rod; 27. Tension spring; 28. Roller; 29. ​​Tilting drive rack; 30. Duck wing guide; 31. Frame; 32. Guide rail; 33. Guide rod; 34. Input gear. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example 1 See Figures 1 to 8 The present invention provides a hanging and rotating machine for slaughtering ducks, including a duck leg hanging production line 1 and a duck wing hanging production line 2. A duck leg cutting machine 3 is provided on one side of the duck leg hanging production line 1. A hanging and rotating machine 4 is provided between the duck leg hanging production line 1 and the duck wing hanging production line 2. The hanging and rotating machine 4 includes a frame 5. Two opposing waist-shaped guide rails 6 are fixedly provided on the frame 5. Each guide rail 6 has two straight parts and two curved parts connecting the straight parts. Each guide rail 6 is equipped with a circulating transmission chain, and multiple connecting rods 7 are evenly spaced along its running direction on the transmission chain; Two connecting rods 7 positioned opposite each other jointly support a set of duck head clamping components 8 for clamping the duck head.

[0028] In the slaughtering of meat ducks, the ducks are first suspended on the duck leg hanging assembly line 1 with their legs, and then move along the line to the duck leg cutting machine 3 to complete the foot cutting operation. When the duck moves along the leg hanging line to the corresponding station of the hanging machine 4, a set of duck head clamping components 8 moves to the straight part near the duck leg line and clamps the duck's head in advance. Then, the duck leg cutting machine 3 completes the cutting of the foot. The duck body falls because it loses the support of the legs, but at this time the duck head has been clamped by the clamping components 8, thus preventing the duck body from falling directly onto the conveyor belt or the ground. The clamping component 8 holding the duck body continues to run along the waist-shaped guide rail 6 with the transmission chain, transitioning from a straight part on one side through a curved part to a straight part on the other side, and finally reaching the release position close to the duck wing suspension assembly line 2; The operator only needs to assist in aligning the duck wings with the hanging station on the duck wing hanging assembly line 2. Then, the clamping component 8 releases the duck's head, and the duck body is received by the wing hanging station, realizing automatic transfer and hanging. The traditional process requires two people to pick up the fallen ducks and hang them on the wing hanging line, which is labor-intensive and inefficient. This solution uses the hanging and transferring machine 4 to automatically receive and transfer the ducks, requiring only one person to assist in aligning the duck wings to complete the transfer and hanging, reducing the number of workers by 50%. Throughout the process, the duck remains suspended in the air, without touching the ground or needing to be transferred via the conveyor belt, significantly reducing the risk of cross-contamination and complying with food hygiene standards.

[0029] The duck head clamping assembly 8 includes a hanger 9, and the upper and lower ends of the hanger 9 are respectively connected to the corresponding connecting rods 7; The hanger 9 is circular, and a rotating bracket 10 is rotatably mounted on its inner wall. The middle part of the rotating bracket 10 is fixedly connected to the base 11 through a transition frame. Two meshing intermediate gears 12 are rotatably mounted on the base 11. A swing arm 13 is fixedly mounted on each intermediate gear 12. The two swing arms 13 are arranged opposite to each other. A clamping arm 14 is rotatably connected to the movable end of each swing arm 13. A clamp 15 for clamping the duck's head is provided at the free end of the clamping arm 14. A middle rod 16 is rotatably mounted on the base 11. One end of the middle rod 16 is rotatably connected to the base 11, and the other end is rotatably connected to the middle of the clamping arm 14.

[0030] During the operation of the hanging machine 4, the duck head clamping assembly 8 moves cyclically along the waist-shaped guide rail 6 with the transmission chain. When the assembly moves to the station close to the duck leg hanging production line 1, its internal clamping mechanism begins to act on the duck head. Specifically, the hanger 9 is fixed to the connecting rod 7 at both ends to maintain overall motion stability; the rotating bracket 10 on the inner wall of the hanger 9 can rotate around the axis of the hanger 9, and it drives the base 11 in the middle to move synchronously through the adapter frame. On the base 11, two meshing intermediate gears 12 form a symmetrical transmission pair. When one gear is driven to rotate, the other gear rotates in the opposite direction, thereby driving the fixed swing arms 13 to move synchronously towards or away from each other. Since each swing arm 13 has a hinged clamping arm 14 at its movable end, and the middle of the clamping arm 14 is connected to the base 11 through the intermediate rod 16 to form a linkage constraint, the two clamping arms 14 can achieve parallel opening and closing movements under the drive of the swing arms 13, that is, the clamps 15 can reliably clamp or release the duck head neck. In actual operation, when the duck has not yet detached from the leg hanger, the clamping component 8 has already moved into position and automatically closes the clamp 15 to firmly clamp the duck's head; after the foot is cut off, the duck body is supported by the clamp 15 and is transferred to the wing hanger side along the guide rail 6 with the component; after reaching the release position, the mechanism reverses its movement, the clamp arm 14 opens, the duck's head is detached, and the transfer preparation is completed.

[0031] A driven gear 17 is rotatably mounted on the base 11. The driven gear 17 is coaxially fixed with one of the intermediate gears 12. A driving gear 18 meshes with one side of the driven gear 17. The driving gear 18 is rotatably connected to the base 11. A worm gear 19 is coaxially fixed on the drive gear 18. The worm gear 19 meshes with a worm 20 rotatably mounted on the base 11. An output bevel gear 21 is fixedly mounted on one end of the worm 20. An input bevel gear 22 meshes with the output bevel gear 21. The input bevel gear 22 is rotatably connected to the base 11, and an input gear 34 is fixedly mounted on the input bevel gear 22.

[0032] During the operation of the rotating machine 4, the duck head clamping assembly 8 moves along the guide rail 6 with the transmission chain. When the assembly moves to a specific station, its internal transmission mechanism is triggered by the external fixed component. When the clamping assembly 8 moves to the preset position, the input gear 34 meshes with the clamping drive rack 23 fixed on the guide rail 6. As the rotating machine 4 runs, the input gear 34 drives the input bevel gear 22, which is fixed on the same axis as it, to rotate together. The input bevel gear 22 then drives the output bevel gear 21, which meshes with it, to rotate. The output bevel gear 21 drives the worm gear 20, which is fixedly connected to it, to rotate synchronously; the worm gear 20 then drives the worm wheel 19, which meshes with it, to rotate, and the worm wheel 19 drives the drive gear 18, which is fixed coaxially with it, to rotate together; The driving gear 18 drives the intermediate gear 12 to rotate through the driven gear 17, and through meshing with another intermediate gear 12, the two intermediate gears 12 rotate synchronously in opposite directions; the two intermediate gears 12 drive their respective fixed swing arms 13 to move, and finally through the linkage of the swing arms 13, the clamping arms 14 and the intermediate rod 16, the clamp 15 is closed or opened. Because of the use of a worm gear 19 and worm 20 pair, the transmission chain has a self-locking characteristic. Once clamping is completed, even if the input gear 34 disengages from the clamping drive rack 23, the worm 20 cannot be driven in reverse, thus keeping the clamping arm 14 in the clamping state and ensuring that the duck carcass will not accidentally fall off during the transfer process.

[0033] A clamping drive rack 23 is fixedly installed on each of the two straight sections of the guide rail 6, and the teeth of the two clamping drive racks 23 are arranged opposite to each other. When the duck head clamping assembly 8 moves with the transmission chain to any position of the clamping drive rack 23, the input gear 34 meshes with the clamping drive rack 23, thereby driving the clamping arm 14 to perform clamping or releasing actions. When the duck head clamping assembly 8 moves to the clamping drive rack 23 near the duck leg hanging assembly line 1, the input gear 34 meshes with the clamping drive rack 23, causing the clamping arm 14 to close to clamp the duck head; when the duck head clamping assembly 8 moves to the clamping drive rack 23 near the duck wing hanging assembly line 2, the input gear 34 meshes with the clamping drive rack 23, causing the clamping arm 14 to open to release the duck head.

[0034] During the operation of the rotating machine 4, the duck head clamping assembly 8 moves cyclically along the waist-shaped guide rail 6 with the transmission chain. A clamping drive rack 23 is fixedly installed on each of the two straight parts of the guide rail 6, and the teeth of the two clamping drive racks 23 are set to face each other. When the duck head clamping assembly 8 moves with the transmission chain to the straight section near the duck leg suspension assembly line 1, the input gear 34 on its base 11 enters and meshes with the clamping drive rack 23 on that side. Since the clamping drive rack 23 is fixed, while the clamping assembly 8 moves forward with the transmission chain, the clamping drive rack 23 applies a reverse driving force to the input gear 34, causing the input gear 34 to rotate. This ultimately drives the two clamping arms 14 to move towards each other and close, so that the clamping head 15 clamps the duck head. At this time, the duck is still supported by the leg hanger. The clamping action is completed before the foot is cut off, ensuring that the duck will not fall afterward.

[0035] Subsequently, the duck leg cutting machine 3 completes the foot cutting operation. The duck loses its leg support, but because the duck head has been firmly clamped, the whole body is supported by the clamping component 8 and continues to run with the transmission chain, and is transferred to the other side through the curved part of the guide rail 6. When the clamping assembly 8 moves to the straight section near the duck wing hanging production line 2, the input gear 34 meshes with the clamping drive rack 23 on that side. Since the tooth direction of the clamping drive rack 23 is opposite to that of the front side, the input gear 34 is driven to rotate in the opposite direction, which in turn causes the clamping arm 14 to move in the opposite direction and open through the same transmission chain, thereby releasing the duck head. At this time, the operator only needs to align the duck wings with the wing hanging station, and the duck body can be smoothly hung on the duck wing hanging production line 2 to complete the transfer.

[0036] The entire clamping and releasing action is automatically triggered by the meshing relationship between the fixed clamping drive rack 23 and the follower input gear 34, without the need for additional sensors, cylinders or electronic control systems.

[0037] A rotating driven gear 24 is fixedly installed on one side of the rotating bracket 10. A rotating driving gear 25 meshes with the rotating driven gear 24. The rotating driving gear 25 is rotatably connected to the hanger 9. A limit rod 26 is slidably provided on the hanger 9. The end of the limit rod 26 facing the flip driven gear 24 is provided with a limit tooth that meshes with the flip driven gear 24. A tension spring 27 is provided between the upper end of the limit rod 26 and the hanger 9 so that the limit tooth is constantly meshed with the flip driven gear 24, thereby restricting the rotation of the rotating bracket 10.

[0038] During the operation of the hanging machine 4, the duck head clamping assembly 8 moves along the guide rail 6 with the transmission chain. The rotating bracket 10 in the clamping assembly 8 is connected to the base 11 and the clamping mechanism through the adapter frame, and can rotate as a whole relative to the hanger 9, thereby changing the orientation of the duck head. To prevent the rotating bracket 10 from rotating unexpectedly at non-designated workstations, a limit rod 26 is slidably installed on the hanger 9. One end of the limit rod 26 is provided with a limit tooth, and the other end is connected to the hanger 9 through a tension spring 27. Under the tension of the tension spring 27, the limit tooth is always pressed and engaged with the flip driven gear 24 fixed on one side of the rotating bracket 10, thereby locking the rotating bracket 10 in the initial angle position, such as duck head down, to ensure the stability of the posture during clamping and transportation. When the clamping assembly 8 moves to a specific point where the duck head needs to be flipped, the external mechanism acts on the limit rod 26, overcoming the tension of the tension spring 27, causing it to slide upward, resulting in the limit tooth disengaging from the flip driven gear 24 and releasing the lock on the rotating bracket 10. At this time, if the flipping drive gear 25 is driven by an external force, since the flipping drive gear 25 is rotatably connected to the hanger 9 and meshes with the flipping driven gear 24, it can drive the flipping driven gear 24 and the rotating bracket 10 fixed thereto to rotate synchronously, thereby adjusting the duck head orientation and causing the duck head to flip 180° upward.

[0039] After the flip is completed, during the return stroke, the limit rod 26 is reset under the action of the tension spring 27, and the limit teeth re-engage the driven gear 24 to lock the rotating bracket 10 back to the initial state, preparing for the next clamping cycle.

[0040] A roller 28 is rotatably mounted at the upper end of the limiting rod 26; A flip drive rack 29 is fixedly installed on the inner side of the curved part of each guide rail 6. The front end of the flip drive rack 29 along the running direction of the transmission chain is provided with a guide angle. When the duck head clamping assembly 8 holding the duck head enters the curved part and contacts the flip drive rack 29, the guide angle of the flip drive rack 29 pushes the roller 28, causing the limit rod 26 to slide upward against the force of the tension spring 27, thus disengaging the limit gear from the flip driven gear 24. At this time, the flipping drive gear 25 meshes with the flipping drive rack 29, and drives the flipping driven gear 24 and the rotating bracket 10 to rotate 180 degrees under the drive of the transmission chain, so that the duck head flips from the initial facing direction to the upward state. After the duck head is released, the duck head clamping assembly 8 is triggered by the flipping drive rack 29 of the curved part of another guide rail 6, which triggers the limit release again and drives the rotating bracket 10 to rotate 180 degrees in the opposite direction, so that the rotating bracket 10 returns to its initial orientation, realizing reciprocating cycle operation.

[0041] During the operation of the hanging machine 4, the clamping assembly 8, which has completed the duck head clamping, moves along the waist-shaped guide rail 6 towards the duck wing suspension production line 2 with the transmission chain. When the assembly enters the curved part of the guide rail 6, the roller 28 at its upper end first contacts the guide angle at the front end of the flipping drive rack 29 fixed to the inside of the curved part; As the transmission chain continues to move forward, the guide angle applies an upward thrust to the roller 28, pushing the limit rod 26 to slide upward against the tension of the tension spring 27, causing the limit tooth at the end of the limit rod 26 to disengage from the rotating driven gear 24, thereby releasing the lock on the rotating bracket 10. As the limiting rod 26 separates from the flip driven gear 24, the flip driving gear 25 immediately meshes with the teeth of the flip drive rack 29. Since the flip drive rack 29 is fixed, while the clamping assembly 8 moves with the transmission chain, the flip driving gear 25 rotates under the action of the clamping drive rack 29, and drives the rotating bracket 10 to rotate synchronously through the flip driven gear 24 meshing with it, so that the rotating bracket 10 rotates 180 degrees, so that the duck head, which was originally facing down, is flipped to face up, which is convenient for the subsequent alignment and hanging of the duck wings. After the duck head is released, the unloaded clamping assembly 8 continues to cycle and enters the curved part on the other side of the return path. Here, there is also a flip drive rack 29, whose guide angle pushes the roller 28 again to release the limit. The flip drive gear 25 meshes with the clamping drive rack 29, driving the rotating bracket 10 to rotate 180 degrees. The duck head clamping assembly 8 returns to its initial orientation, ready for the next clamping operation. The entire flipping and resetting process is automatically completed by the mechanical interaction between the fixed flipping drive rack 29 on the guide rail 6 and the follower component, without the need for external power or manual intervention.

[0042] A duck wing guide 30 is provided between the hanging machine 4 and the duck wing hanging production line 2. The duck wing guide 30 includes a frame 31 and a guide rail 32 installed on the frame 31. The two ends of the guide rail 32 are the duck inlet end and the duck outlet end, respectively. Two horizontally arranged guide rods 33 are fixedly installed on the guide rail 32. Each guide rod 33 has an arc-shaped bend at the end near the duck inlet end.

[0043] After the duck head is released by the rotating machine 4, the duck body enters the duck wing guide 30 between the rotating machine 4 and the duck wing suspension line 2 from the state of the duck wings hanging naturally.

[0044] When the duck enters the guide with inertia or slight push, its left and right wings respectively contact the arc-shaped bends of the two guide rods 33. Due to the guiding effect of the arc structure, the duck wings slide into the channel between the two guide rods 33 along the bends and are gradually spread outward and flattened, thus achieving physical separation from the natural folded state that is close to the body. As the duck continues to move forward to the exit end, the two duck wings are stably positioned within the distance defined by the guide rod 33, which matches the distance of the hooks on the downstream duck wing hanging assembly line 2. Operators or automatic wing hanging mechanisms can directly hang the unfolded duck wings into the corresponding hanging points without manually prying them open or adjusting their posture. Throughout the process, the duck wing guide 30 completes the automatic unfolding, alignment, and pre-positioning of the duck wings through passive, purely mechanical guidance without power.

[0045] The distance between two adjacent duck head clamping components 8 on the transmission chain is equal to the distance between adjacent duck hanging stations on the duck leg hanging assembly line 1, and equal to the distance between adjacent duck hanging stations on the duck wing hanging assembly line 2.

[0046] When the hanging machine 4 starts running, the transmission chain drives the duck head clamping assembly 8 to move synchronously in a circular motion. Because the pitch is exactly the same, whenever a duck moves to the hanging station along with its legs, a set of idle duck head clamping assemblies 8 arrives at the corresponding position at the same time, achieving one-to-one docking; The clamping component 8 clamps the duck's head before the foot is cut off, receives the duck body and transfers it along the guide rail 6, and when it reaches the release station on the wing hanging side, the position of the duck body is exactly aligned with an empty duck hanging station on the duck wing hanging assembly line 2. Operators only need to hang the unfolded duck wings into the hook at this workstation to complete the transfer; there is no need to adjust the position or wait for the rhythm to align. Throughout the process, the rotating machine 4 maintains strict mechanical synchronization with the upstream and downstream production lines, without the need for buffering, waiting, or manual correction of the workstations.

[0047] When this invention is used, in the slaughtering of meat ducks, the ducks are first suspended on the duck leg hanging assembly line 1 with both legs, and then move with the line to the duck leg cutting machine 3 to complete the foot cutting operation. When the duck moves along the leg hanging line to the corresponding station of the hanging machine 4, a set of duck head clamping components 8 moves to the straight part near the duck leg line and clamps the duck's head in advance. Then, the duck leg cutting machine 3 completes the cutting of the foot. The duck body falls because it loses the support of the legs, but at this time the duck head has been clamped by the clamping components 8, thus preventing the duck body from falling directly onto the conveyor belt or the ground. The clamping component 8 holding the duck body continues to run along the waist-shaped guide rail 6 with the transmission chain, transitioning from a straight part on one side through a curved part to a straight part on the other side, and finally reaching the release position close to the duck wing suspension assembly line 2; The operator only needs to assist in aligning the duck wings with the hanging station on the duck wing hanging assembly line 2. Then, the clamping component 8 releases the duck's head, and the duck body is received by the wing hanging station, realizing automatic transfer and hanging. The traditional process requires two people to pick up the fallen ducks and hang them on the wing hanging line, which is labor-intensive and inefficient. This solution uses the hanging and transferring machine 4 to automatically receive and transfer the ducks, requiring only one person to assist in aligning the duck wings to complete the transfer and hanging, reducing the number of workers by 50%. Throughout the process, the duck remains suspended in the air, without touching the ground or needing to be transferred via the conveyor belt, significantly reducing the risk of cross-contamination and complying with food hygiene standards.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hanging conveyor for slaughtering meat ducks, comprising a duck leg hanging conveyor (1) and a duck wing hanging conveyor (2), wherein a duck leg cutter (3) is provided on one side of the duck leg hanging conveyor (1), characterized in that, A hanging machine (4) is provided between the duck leg hanging production line (1) and the duck wing hanging production line (2). The hanging machine (4) includes a stand (5). Two opposing waist-shaped guide rails (6) are fixedly provided on the stand (5). Each guide rail (6) has two straight parts and two curved parts connecting the straight parts. Each of the guide rails (6) is provided with a circulating transmission chain, and multiple connecting rods (7) are provided at equal intervals along its running direction on the transmission chain. The two connecting rods (7) arranged opposite to each other jointly support a set of duck head clamping components (8) for clamping the duck head; The duck head clamping assembly (8) includes a hanger (9), and the upper and lower ends of the hanger (9) are respectively connected to the corresponding connecting rods (7); The hanger (9) is circular, and a rotating bracket (10) is rotatably provided on its inner wall. The middle part of the rotating bracket (10) is fixedly connected to the base (11) through a transition frame. Two meshing intermediate gears (12) are rotatably provided on the base (11). A swing arm (13) is fixedly provided on each intermediate gear (12). The two swing arms (13) are arranged opposite to each other. A clamping arm (14) is rotatably connected to the movable end of each swing arm (13). A clamp (15) for clamping the duck's head is provided at the free end of the clamping arm (14). A middle rod (16) is rotatably mounted on the base (11). One end of the middle rod (16) is rotatably connected to the base (11), and the other end is rotatably connected to the middle part of the clamping arm (14). A driven gear (17) is rotatably mounted on the base (11). The driven gear (17) is coaxially fixed with one of the intermediate gears (12). A driving gear (18) meshes with one side of the driven gear (17). The driving gear (18) is rotatably connected to the base (11). A worm gear (19) is coaxially fixed on the drive gear (18). The worm gear (19) meshes with a worm (20) rotatably mounted on the base (11). An output bevel gear (21) is fixedly mounted at one end of the worm (20). An input bevel gear (22) meshes with the output bevel gear (21). The input bevel gear (22) is rotatably connected to the base (11), and an input gear (34) is fixedly mounted on the input bevel gear (22). A clamping drive rack (23) is fixedly installed on each of the two straight sections of the guide rail (6), and the teeth of the two clamping drive racks (23) are arranged opposite to each other; When the duck head clamping assembly (8) moves with the transmission chain to any position of the clamping drive rack (23), the input gear (34) meshes with the clamping drive rack (23), thereby driving the clamping arm (14) to perform clamping or releasing actions; When the duck head clamping assembly (8) moves to the clamping drive rack (23) near the duck leg hanging assembly line (1), the input gear (34) meshes with the clamping drive rack (23) to close the clamping arm (14) and clamp the duck head; when the duck head clamping assembly (8) moves to the clamping drive rack (23) near the duck wing hanging assembly line (2), the input gear (34) meshes with the clamping drive rack (23) to open the clamping arm (14) and release the duck head; A rotating driven gear (24) is fixedly installed on one side of the rotating bracket (10), and a rotating driving gear (25) meshes with the rotating driven gear (24). The rotating driving gear (25) is rotatably connected to the hanger (9). A limiting rod (26) is slidably provided on the hanger (9). The end of the limiting rod (26) facing the flip driven gear (24) is provided with a limiting tooth that meshes with the flip driven gear (24). A tension spring (27) is provided between the upper end of the limiting rod (26) and the hanger (9) so that the limiting tooth meshes with the flip driven gear (24) and restricts the rotation of the rotating bracket (10). A roller (28) is rotatably provided at the upper end of the limiting rod (26); A flip drive rack (29) is fixedly provided on the inner side of the curved part of each guide rail (6), and the front end of the flip drive rack (29) along the running direction of the transmission chain is provided with a guide angle; When the duck head clamping assembly (8) holding the duck head enters the curved part and contacts the flip drive rack (29), the guide angle of the flip drive rack (29) pushes the roller (28), causing the limit rod (26) to slide upward against the force of the tension spring (27), thus releasing the engagement between the limit tooth and the flip driven gear (24); At this time, the flipping drive gear (25) meshes with the flipping drive rack (29), and drives the flipping driven gear (24) and the rotating bracket (10) to rotate 180 degrees under the drive of the transmission chain, so that the duck head flips from the initial facing direction to the upward state; After the duck head is released, the duck head clamping assembly (8) is triggered again by the flipping drive rack (29) of the curved part of another guide rail (6) to release the limit and drive the rotating bracket (10) to rotate 180 degrees in the opposite direction, so that the rotating bracket (10) is reset to the initial orientation, and the reciprocating cycle operation is realized.

2. The hanging rotating machine for slaughtering meat ducks according to claim 1, characterized in that, A duck wing guide (30) is provided between the hanging machine (4) and the duck wing hanging production line (2). The duck wing guide (30) includes a frame (31) and a guide rail (32) installed on the frame (31). The two ends of the guide rail (32) are the duck inlet end and the duck outlet end, respectively. Two horizontally arranged guide rods (33) are fixedly provided on the guide rail (32). Each guide rod (33) has an arc-shaped bend at the end near the duck inlet end.

3. The hanging rotating machine for slaughtering meat ducks according to claim 1, characterized in that, The distance between two adjacent duck head clamping components (8) on the transmission chain is equal to the distance between adjacent duck hanging stations on the duck leg hanging assembly line (1) and equal to the distance between adjacent duck hanging stations on the duck wing hanging assembly line (2).

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