Multi-station cascade type poultry leg bone and meat separation device

Abstract

The invention relates to a multi-station cascade type poultry leg bone and meat separating device which comprises an operation table, a conveying mechanism arranged in an inner cavity of the operation table and used for conveying poultry legs, an overturning mechanism arranged above the operation table and used for overturning the poultry legs and a separating mechanism used for separating bones and meat of the poultry legs. The invention relates to the technical field of poultry leg bone-meat separation. According to the multi-station cascade type poultry leg bone and meat separation device, the multi-station cascade structure and the flexible cutting system, efficient separation of poultry leg bones and meat is achieved through collaborative operation of feeding conveying, pneumatic clamping, mechanical overturning and intelligent cutting. The four groups of closed-loop cutting ropes form a dynamic cutting net under the driving of the rotating ring, and the dynamic cutting net is matched with tension sensing and PLC control, so that the device not only can adapt to shapes of poultry legs with different specifications, but also avoids the problem of broken bone residues of a traditional cutter. A double-gear driving structure and a guide wheel set guarantee the cutting stability, and the meat integrity is improved to 98.5% through the cutting rope blunt stripping technology.

Description

Technical Field

[0001] The present invention relates to the technical field of poultry leg bone and meat separation, and specifically to a multi-station cascade type poultry leg bone and meat separation device. Background Art

[0002] Traditional poultry leg bone and meat separation mostly relies on manual or mechanical pressing methods, which have problems such as low efficiency, a large amount of bone residue remaining, and damage to the meat quality. Existing automated equipment often uses rigid cutting tools, which are prone to damaging the bone structure, resulting in bone fragments mixing into the meat; and it is difficult to adapt to the processing of poultry legs of different specifications, and parameters need to be frequently adjusted. Some equipment uses a single-station design, which has defects such as poor process connection and low equipment utilization rate. There is an urgent need for an efficient separation device that can achieve precise blunt cutting, adaptive adjustment, and multi-station coordination. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a multi-station cascade type poultry leg bone and meat separation device, which solves the problems mentioned above.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A multi-station cascade type poultry leg bone and meat separation device includes an operating table, a conveying mechanism arranged in the inner cavity of the operating table for conveying poultry legs, a flipping mechanism arranged above the operating table for flipping poultry legs, and a separation mechanism for separating the bone and meat of poultry legs. The flipping mechanism includes a rotating frame rotatably arranged on the surface of the operating table driven by a motor, and two clamping rings driven by a double-rod cylinder are slidably connected to one side of the rotating frame; The separation mechanism includes a lifting cylinder arranged directly above the rotating frame. The bottom end of the piston rod of the lifting cylinder is fixedly connected with a fixed frame. A fixed ring is fixedly connected to the inner cavity of the fixed frame. A rotating ring sleeved on the outer ring of the fixed ring is rotatably connected to the inner cavity of the fixed frame through a driving mechanism. Cutting assemblies for cutting poultry legs are arranged in the inner cavities of the rotating ring and the fixed ring. A through groove for the poultry leg to penetrate is opened in the inner cavity of the fixed frame.

[0005] As a further solution of the present invention: The two clamping rings are closely attached to form a clamping ring for clamping poultry legs.

[0006] As a further solution of the present invention: The driving mechanism includes a driving gear rotatably arranged in the inner cavity of the fixed frame. Tooth grooves meshing with the driving gear are opened on the surface of the rotating ring. By rotating two driving gears to drive the rotation of the rotating ring, the angle of the rotating ring can be adjusted quickly, and the two-point support is more stable and will not produce deviation.

[0007] As a further solution of the present invention: the cutting assembly includes a first take-up wheel that is rotated by a motor in the inner cavity of a fixed ring and a fixed plate fixed on the side of the rotating ring, the surface of the fixed plate is rotatably connected to a second take-up wheel driven by a motor, the surfaces of the first take-up wheel and the second take-up wheel are both transmission-connected with a cutting rope, the inner cavity of the rotating ring is provided with a first through groove for the cutting rope to pass through, and the inner cavity of the fixed ring is provided with a second through groove for the cutting rope to pass through.

[0008] As a further solution of the present invention: guide wheels are rotatably connected to both sides of the inner cavity of the first through groove and the second through groove, and when the cutting rope contacts the side of the first through groove and the second through groove, it is guided to prevent friction.

[0009] As a further solution of the present invention: a dynamometer is provided in the middle section of the cutting rope, and the dynamometer is connected to the driving motors of the first take-up wheel and the second take-up wheel through a PLC control end.

[0010] As a further solution of the present invention: four cutting components are provided, four cutting ropes are provided, and they are arranged in a circular array in the inner cavity of the rotating ring and the fixed ring. The setting of the four cutting ropes can quickly adjust the size of the intersection of the four cutting ropes to separate poultry legs of different sizes.

[0011] As a further solution of the present invention: The conveying mechanism includes a feeding conveyor belt arranged in the inner cavity of the operating table and a discharging conveyor belt arranged in front of the operating table. Clamping plates driven by cylinders are arranged on both sides of the feeding conveyor belt. A cutting knife is fixedly connected to one side of each clamping plate. When the poultry legs are conveyed onto the feeding conveyor belt and enter between the two clamping plates, the cylinders drive the two clamping plates to extend to clamp the poultry legs. Then, the two cutting knives are used to cut the poultry legs, cutting open the part with only skin at the end and the leg bones. Then, the poultry legs are continuously conveyed. At this time, the rotating frame is horizontal with the feeding conveyor belt. The poultry legs are conveyed between the two clamping rings. Then, the double-rod cylinder drives the clamping rings to clamp the poultry legs. Then, the rotating frame flips to form a vertical angle with the feeding conveyor belt. At this time, the poultry legs are directly below the fixed frame. At this time, the cutting ropes of the four cutting assemblies are all in the maximum open state. Then, the fixed frame descends until the cutting ropes are flush with the cut part of the poultry legs by the cutting knives. Then, the rotating ring rotates counterclockwise, driving the four fixing plates to rotate. The four second wire take-up wheels all rotate, driving the four cutting ropes to move simultaneously towards the center of the fixed ring, forming a cross shape to cross the poultry legs in the center. At this time, under pressure, the cutting ropes are embedded into the inner cavity of the cut part by the cutting knives. Then, the lifting cylinder drives the fixed frame to rise, driving the four cutting ropes to rise, stripping the meat attached to the poultry legs. When moving upward, the cutting ropes rub against the poultry leg bones. The larger the size of the poultry leg bones, the higher the position. The pulling force is detected by a tensiometer. After reaching the set threshold, the first wire take-up wheel is controlled to pay out the wire, adjusting the size of the intersection between the four cutting ropes to prevent the poultry legs from being taken out of the clamping rings due to excessive force. Then, until it moves to the uppermost position, the leg meat is stripped above the poultry leg bones. At this time, the first wire take-up wheel and the second wire take-up wheel drive the cutting ropes to make a reciprocating motion to completely cut them. Then, the cutting ropes completely open and reset. The fixed frame rises, and the leg meat falls above the poultry leg bones. Then, the rotating frame flips to drive the poultry leg bones to fall onto the discharging conveyor belt for output. Then, it resets and repeats the above steps. The four cutting ropes can effectively separate the leg meat, and the blunt cutting method of the cutting ropes can effectively prevent damage to the leg bones during separation, resulting in bone fragments remaining in the leg meat. Moreover, by adjusting the position of the cutting ropes, various leg bones can be separated, and the applicable range is larger.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Multi-station cascade coordination. Through the cascade layout of the feeding conveyor belt - rotating frame - discharging conveyor belt, continuous processing of poultry legs is achieved. The comprehensive utilization rate of the equipment is increased to 92%, and the single-hour processing capacity reaches 300 - 400 pieces, with the efficiency being 3 times higher than that of traditional single-station equipment.

[0013] Zero bone fragment flexible cutting. A blunt cutting system composed of four groups of closed-loop cutting ropes, combined with the coordinated rotation of the fixed ring and the rotating ring, enables the cutting ropes to only be embedded in the epidermal incisions, avoiding bone fractures. The residual amount of bone fragments is <0.03%, and the meat integrity reaches 98.5%.

[0014] Dynamic adaptive adjustment. The PLC provides real-time feedback on the tension of the cutting rope through a tensiometer, and jointly controls the wire pay-off compensation of the first wire take-up wheel and the winding speed of the second wire take-up wheel to achieve full specification adaptation for poultry legs with a diameter of Φ15 - 45mm.

[0015] High-precision stable drive. The two driving gears symmetrically mesh with the tooth path of the rotating ring to eliminate the risk of single-point drive off-load, ensuring that the angle adjustment accuracy of the rotating ring reaches ±0.1°; the guide wheel cooperates with the through groove to reduce the friction loss of the cutting rope to less than 3% per 10,000 cycles.

[0016] Quick maintenance design. The clamping ring adopts a quick-release slide rail structure, and the cutting rope is replaced through the snap-in interface of the wire take-up wheel, reducing the maintenance cost by 75% compared with traditional tool grinding.

[0017] Adopting a multi-station cascade structure and a flexible cutting system, through the coordinated operations of feeding and conveying, pneumatic clamping, mechanical flipping, and intelligent cutting, efficient separation of poultry leg meat and bones is achieved. The four groups of closed-loop cutting ropes form a dynamic cutting net driven by the rotating ring. With the cooperation of tension sensing and PLC control, it can adapt to the shapes of different specifications of poultry legs and avoid the problem of bone fragments remaining in traditional tools. The double-gear drive structure and the guide wheel group ensure cutting stability, and the blunt peeling technology of the cutting rope improves the meat integrity to 98.5%. The equipment realizes quick maintenance through modular design, with an efficiency three times higher than that of traditional equipment, a separation qualification rate of over 99%, significantly reducing labor costs, and is suitable for large-scale poultry processing scenarios. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a top view of the operating table structure of the present invention; Figure 3 It is a top view of the fixed frame structure of the present invention; Figure 4 It is a top view of the fixed frame with the cutting rope tightened in the present invention; Figure 5 For the present invention Figure 3 A partial enlarged view at position A in; Figure 6 For the present invention Figure 1 A partial enlarged view at position B in; Figure 7 For the present invention Figure 2 A partial enlarged view at position C in.

[0019] In the figure: 1, operating platform; 2, lifting cylinder; 3, fixing frame; 4, discharge conveyor belt; 5, feed conveyor belt; 6, rotating frame; 7, clamping ring; 8, clamping plate; 9, cutting knife; 10, rotating ring; 11, fixing ring; 12, through groove; 13, fixing plate; 14, second wire take-up wheel; 15, cutting rope; 16, driving gear; 17, tensiometer; 18, first through groove; 19, second through groove; 20, guide wheel; 21, first wire take-up wheel. Detailed implementation manners

[0020] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0021] Please refer to Figure 1-7 , the present invention provides a technical solution: a multi-station cascade type poultry leg bone and meat separation device, including an operating platform 1, a conveying mechanism arranged in the inner cavity of the operating platform 1 for conveying poultry legs, a turning mechanism arranged above the operating platform 1 for turning poultry legs, and a separation mechanism for separating the bone and meat of poultry legs. The turning mechanism includes a rotating frame 6 rotatably arranged on the surface of the operating platform 1 driven by a motor, and two clamping rings 7 driven by a double-rod cylinder are slidably connected to one side of the rotating frame 6; The separation mechanism includes a lifting cylinder 2 arranged directly above the rotating frame 6. The bottom end of the piston rod of the lifting cylinder 2 is fixedly connected with a fixing frame 3. A fixing ring 11 is fixedly connected to the inner cavity of the fixing frame 3. A rotating ring 10 sleeved on the outer ring of the fixing ring 11 is rotatably connected to the inner cavity of the fixing frame 3 through a driving mechanism. Cutting assemblies for cutting poultry legs are arranged in the inner cavities of the rotating ring 10 and the fixing ring 11. A through groove 12 for the poultry leg to pass through is opened in the inner cavity of the fixing frame 3.

[0022] The two clamping rings 7 are closely attached to form a clamping ring for clamping the poultry leg.

[0023] The driving mechanism includes a driving gear 16 rotatably arranged in the inner cavity of the fixing frame 3. Tooth grooves meshing with the driving gear 16 are opened on the surface of the rotating ring 10. By rotating the two driving gears 16 to drive the rotation of the rotating ring 10, the angle of the rotating ring 10 can be adjusted quickly, and the two-point support is more stable and will not generate deviation.

[0024] The cutting assembly includes a first take-up wheel 21 which is rotated by a motor in the inner cavity of the fixed ring 11 and a fixed plate 13 fixed on the side of the rotating ring 10. The surface of the fixed plate 13 is rotatably connected to a second take-up wheel 14 which is driven by a motor. The surfaces of the first take-up wheel 21 and the second take-up wheel 14 are both transmission-connected with a cutting rope 15. The inner cavity of the rotating ring 10 is provided with a first through groove 18 for the cutting rope 15 to pass through, and the inner cavity of the fixed ring 11 is provided with a second through groove 19 for the cutting rope 15 to pass through.

[0025] Guide wheels 20 are rotatably connected to both sides of the inner cavity of the first through groove 18 and the second through groove 19. When the cutting rope 15 contacts the side of the first through groove 18 and the second through groove 19, the guide wheels 20 are used to prevent friction.

[0026] A dynamometer 17 is provided at the middle section of the cutting rope 15 , and the dynamometer 17 is connected to the driving motors of the first take-up wheel 21 and the second take-up wheel 14 through a PLC control terminal.

[0027] There are four cutting components and four cutting ropes 15, which are arranged in a circular array in the inner cavity of the rotating ring 10 and the fixed ring 11. The setting of the four cutting ropes 15 can quickly adjust the size of the intersection of the four cutting ropes 15 to separate poultry legs of different sizes.

[0028] The conveying mechanism includes a feeding conveyor belt 5 arranged inside the operation table 1 and a discharging conveyor belt 4 arranged in front of the operation table 1. Clamping plates 8 driven by air cylinders are arranged on both sides of the feeding conveyor belt 5. A cutting knife 9 is fixedly connected to one side of the clamping plate 8. The poultry legs are conveyed onto the feeding conveyor belt 5 and enter between the two clamping plates 8. At this time, the air cylinders drive the two clamping plates 8 to extend to clamp the poultry legs, and then the two cutting knives are used to cut the poultry legs, cutting open the part with only skin at the end and the leg bones. Then, the conveying continues. At this time, the rotating frame 6 is horizontal with the feeding conveyor belt 5. The poultry legs are conveyed between the two clamping rings 7. Then, the double-rod air cylinder drives the clamping rings 7 to clamp the poultry legs. Then, the rotating frame 6 flips to form a vertical angle with the feeding conveyor belt 5. At this time, the poultry legs are directly below the fixed frame 3. At this time, the cutting ropes 15 of the four cutting assemblies are all in the maximum open state. Then, the fixed frame 3 descends until the cutting ropes 15 are flush with the cut part of the poultry legs by the cutting knife 9. Then, at this time, the rotating ring 10 rotates counterclockwise, driving the four fixing plates 13 to rotate. The four second wire winding wheels 14 all rotate, driving the four cutting ropes 15 to move simultaneously towards the center of the fixed ring 11, forming a cross shape to cross the poultry legs in the center. At this time, under pressure, the cutting ropes 15 are embedded into the inner cavity of the cut part by the cutting knife 9. Then, the lifting air cylinder 2 drives the fixed frame 3 to rise, driving the four cutting ropes 15 to rise, stripping the meat attached to the poultry legs. When moving upward, the cutting ropes 15 rub against the poultry leg bones. The larger the size of the poultry leg bones, the higher it goes. The tension is detected by the tensiometer 17. After reaching the set threshold value, the first wire winding wheel 21 is controlled to pay out the wire, adjusting the size of the intersection of the four cutting ropes 15 to prevent the poultry legs from being taken out of the clamping rings 7 due to excessive force. Then, until it moves to the topmost position, the leg meat is stripped above the poultry leg bones. At this time, the first wire winding wheel 21 and the second wire winding wheel 14 drive the cutting ropes 15 to make a reciprocating motion to completely cut them off. Then, the cutting ropes 15 completely open and reset. The fixed frame 3 rises, and the leg meat falls above the poultry leg bones. Then, the rotating frame 6 flips to drive the poultry leg bones to fall on the discharging conveyor belt 4 for output. Then, it resets and repeats the above steps. The four cutting ropes 15 can effectively separate the leg meat, and the blunt cutting method of the cutting ropes 15 can effectively prevent damage to the leg bones during separation, resulting in bone fragments remaining in the leg meat. Moreover, by adjusting the position of the cutting ropes 15, various leg bones can be separated, and the applicable range is larger.

[0029] When the present invention is in use; Conveying and preprocessing: feeding conveyor belt 5, clamping plate 8, cutting knife 9 The poultry legs are conveyed by the feeding conveyor belt 5 to the clamping station. The clamping plates 8 on both sides are driven by air cylinders to close and clamp the poultry legs, and the cutting knife 9 is synchronously triggered to horizontally cut the epidermal connection at the end of the poultry legs, forming an inlet incision for bone-meat separation with a depth of 3 - 5 mm.

[0030] Flipping and positioning: rotating frame 6, clamping ring 7, double-rod air cylinder The double-rod cylinder drives the clamping ring 7 to close and clamp the pre-treated poultry leg, and the motor drives the rotating frame 6 to rotate clockwise by 90°, so that the central axis of the poultry leg is vertically aligned with the fixed ring 11 of the separation mechanism.

[0031] Intelligent cutting lifting cylinder 2, fixed frame 3, rotating ring 10, cutting rope 15 The lifting cylinder 2 drives the fixed frame 3 to press down, so that the cutting rope 15 in the fixed ring 11 is flush with the cut of the poultry leg.

[0032] The driving gear 16 of the driving mechanism drives the rotating ring 10 to rotate counterclockwise, and the four groups of cutting ropes 15 are wound centripetally by the second wire take-up wheel 14 to form a cross-cutting net, and the diameter of the intersection point of the incision is adaptively adjusted.

[0033] The tensiometer 17 monitors the tension of the cutting rope in real time, and the PLC dynamically adjusts the wire feeding amount of the first wire take-up wheel 21 according to the threshold value of 10 - 50N, ensuring that when the cutting rope 15 expands with the shape of the poultry leg bone, such as when the leg bone with a diameter of Φ20mm expands to Φ25mm, the wire feeding amount increases by 2mm.

[0034] Blunt peeling guide wheel 20, through groove 12 The lifting cylinder 2 retracts and pulls the cutting rope 15 to rise along the bone surface, and the guide wheel 20 reduces the friction loss; the reciprocating motion frequency of the cutting rope 15 in the through groove 12 is 5Hz, cutting off the remaining connective tissue and completing the separation of meat and bone.

[0035] Discharge sorting conveyor belt 4 The rotating frame 6 resets to the horizontal position, and the separated leg bone and the attached meat block fall onto the discharge conveyor belt 4 to achieve continuous sorting.

[0036] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Multi-station cascade type poultry leg bone and meat separation device, comprising an operating table (1), a conveying mechanism arranged in the inner cavity of the operating table (1) for conveying poultry legs, a turning mechanism arranged above the operating table (1) for turning the poultry legs, and a separation mechanism for separating the bone and meat of the poultry legs, characterized in that: The turning mechanism comprises a rotating frame (6) driven by a motor and arranged to rotate on the surface of the operating table (1), and one side of the rotating frame (6) is slidably connected to two clamping rings (7) driven by a double-rod cylinder; The separation mechanism comprises a lifting cylinder (2) arranged directly above a rotating frame (6), the bottom end of the piston rod of the lifting cylinder (2) is fixedly connected to a fixed frame (3), the inner cavity of the fixed frame (3) is fixedly connected to a fixed ring (11), the inner cavity of the fixed frame (3) is rotatably connected to a rotating ring (10) sleeved on the outer ring of the fixed ring (11) through a driving mechanism, the inner cavities of the rotating ring (10) and the fixed ring (11) are both provided with cutting components for cutting poultry legs, and the inner cavity of the fixed frame (3) is provided with a through groove (12) for the poultry legs to pass through.

2. The multi-station cascade type poultry leg meat and bone separation device according to claim 1, wherein: The two clamping rings (7) are tightly attached to form a clamping ring for clamping the poultry legs.

3. The multi-station cascade type poultry leg meat and bone separation device according to claim 1, characterized in that: The driving mechanism comprises a driving gear (16) rotatably arranged in the inner cavity of the fixed frame (3), and a tooth path meshing with the driving gear (16) is provided on the surface of the rotating ring (10).

4. The multi-station cascade type poultry leg bone and meat separation device according to claim 1, characterized in that: The cutting assembly includes a first take-up wheel (21) which is arranged to rotate in the inner cavity of a fixed ring (11) and driven by a motor, and a fixed plate (13) fixed to the side of a rotating ring (10), the surface of the fixed plate (13) is rotatably connected to a second take-up wheel (14) driven by a motor, the surfaces of the first take-up wheel (21) and the second take-up wheel (14) are both transmission-connected to a cutting rope (15), the inner cavity of the rotating ring (10) is provided with a first through-groove (18) for the cutting rope (15) to pass through, and the inner cavity of the fixed ring (11) is provided with a second through-groove (19) for the cutting rope (15) to pass through.

5. The multi-station cascade type poultry leg bone and meat separation device according to claim 4, characterized in that: Guide wheels (20) are rotatably connected to both sides of the inner cavities of the first through-groove (18) and the second through-groove (19).

6. The multi-station cascade type poultry leg bone and meat separation device according to claim 4, characterized in that: A dynamometer (17) is provided in the middle section of the cutting rope (15), and the dynamometer (17) is connected to the driving motors of the first take-up wheel (21) and the second take-up wheel (14) via a PLC control terminal.

7. The multi-station cascade type poultry leg bone and meat separation device according to claim 1, wherein: Four cutting assemblies are provided, and four cutting ropes (15) are provided, and are arranged in an annular arrangement in the inner cavities of the rotating ring (10) and the fixed ring (11).

8. The multi-station cascade type poultry leg bone and meat separation device according to claim 1, wherein: The conveying mechanism comprises a feed conveyor belt (5) arranged in the inner cavity of the operating table (1) and a discharge conveyor belt (4) arranged in front of the operating table (1), wherein both sides of the feed conveyor belt (5) are provided with clamping plates (8) driven by a cylinder, and a cutter (9) is fixedly connected to one side of the clamping plate (8).

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