Bird claw deboning cutter and back breaking device
By designing a curved blade holder and an adaptive cylinder for deboning poultry claws, combined with a lifting seat and positioning structure, the problem of difficulty in controlling the cutting depth was solved, achieving safe and effective deboning of poultry claws.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DANMING INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-23
Smart Images

Figure CN224386636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a deboning cutter for poultry claws and a device for cutting back tendons, belonging to the field of food processing technology. Background Technology
[0002] Boneless chicken feet, boneless duck feet, and other poultry feet products are very popular. Making boneless poultry feet requires removing both the phalanges and metatarsals. Removing the metatarsals and large bones involves fixing the foot in place and then using a knife to cut open the skin and flesh along the back fascia to facilitate subsequent bone removal. However, because the instep of a poultry foot is uneven, current methods of deboning poultry feet using a knife are difficult to control the depth of the cut, easily damaging the bone and making subsequent bone removal impossible. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a deboning cutter for poultry claws that can control the cutting depth.
[0004] Another objective of this invention is to provide a back-cutting and tendon-severing device for deboning poultry claws using the aforementioned cutter.
[0005] This utility model is achieved through the following technical solution:
[0006] A deboning cutter for bird claws includes a cutter holder and a blade disposed on the cutter holder, characterized in that the cutter holder has an end face that presses against the surface of the bird claw, and the cutting edge of the blade protrudes from the end face.
[0007] The poultry claw deboning cutter described above is characterized in that the blade is a circular blade connected to the blade holder, and the radius of the blade is greater than the distance from its center to the end face of the blade holder.
[0008] The deboning cutter for bird claws described above is characterized in that the free end of the cutter holder is arc-shaped and the end face is an arc surface or a bevel.
[0009] The poultry claw deboning cutter described above is characterized in that the cutter holder is connected to an adaptive cylinder, and the cutter holder is connected to the adaptive cylinder through a strip hole.
[0010] The poultry claw deboning cutter described above is characterized in that the cutter holder is provided with a blade groove, the blade is disposed in the blade groove, and the end faces are respectively located on both sides of the blade.
[0011] A device for deboning and cutting tendons in poultry claws using the aforementioned cutting blade is characterized by comprising a height-adjustable base, wherein the base is provided with a blade holder that can slide along the length of the large bone of the poultry claw, the cutting blade is disposed on the blade holder, and the cutting direction of the blade is consistent with the sliding direction of the blade holder.
[0012] The poultry claw deboning and tendon-severing device described above is characterized in that the base is connected to the output end of the lifting drive, and the base is provided with a back-cutting drive to drive the blade holder to slide.
[0013] The poultry claw deboning and tendon-severing device described above is characterized in that the blade holder is provided with a scraper located at the front end of the cutter, and the blade of the scraper is laterally in contact with the large bone of the poultry claw.
[0014] The poultry claw deboning and tendon-severing device described above is characterized by further including a poultry claw bone positioning structure disposed on the frame and a positioning drive for driving its lifting and lowering. The positioning structure includes a radial positioning member located below the poultry claw bone, the radial positioning member having a notch for accommodating the poultry claw bone, and the positioning structure further includes an axial positioning member abutting against the end of the poultry claw bone.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] This invention effectively controls the thickness of the extended blade, ensuring that the skin and meat on the surface of the large bone of the poultry claw are completely cut through, while avoiding cutting too deeply when cutting the skin of the poultry claw, which could damage the bone and affect subsequent deboning, and also avoid leaving bone fragments during deboning. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the blade holder and blade of the cutting tool of this utility model;
[0018] Figure 2 This is a three-dimensional structural diagram of the cutter of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the back-cutting and tendon-severing device of this utility model;
[0020] Figure 4 This is a partial exploded view of the back-cutting and tendon-severing device of this utility model;
[0021] Figure 5 This is a schematic diagram of the application structure of this utility model. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to specific embodiments.
[0023] like Figure 1-5As shown, a deboning cutter for poultry claws includes a blade holder 1 and a blade 2 disposed on the blade holder 1. The blade holder 1 has an end face 11 that presses against the skin of the poultry claw, and the blade 2's cutting edge protrudes from the end face 11. The distance between the blade 2's cutting edge and the end face 11 of the blade holder 1 is controlled to not exceed the thickness of the skin and flesh on the surface of the large bone of the poultry claw. When the end face 11 of the blade holder 1 is pressed against the skin of the large bone of the poultry claw for cutting, the limitation of the protruding blade's thickness prevents the bone from being cut, thus avoiding affecting the subsequent removal of the large bone.
[0024] In a preferred embodiment of this invention, the blade 2 is a circular blade connected to the blade holder 1, and the radius of the blade 2 is greater than the distance from its center to the end face 11 of the blade holder 1. The circular blade cuts as the blade holder 1 moves, better adapting to the uneven surface of the bird's claw bone and preventing jamming of the straight blade. Furthermore, it is preferable that the free end of the blade holder 1 is arc-shaped, and the end face 11 is an arc surface, facilitating smoother movement and cutting.
[0025] To better enable the blade to cut only the skin and meat by following the undulations of the large bone surface of the poultry claw, the blade holder 1 is equipped with an adaptive cylinder 3. During the cutting process, the air pressure of the cylinder keeps the end face of the blade holder 1 in close contact with the surface of the poultry claw. Preferably, the blade holder 1 is connected to the adaptive cylinder 3 through a slotted hole 12. When the size of the poultry claws varies considerably, the installation position of the blade holder 1 can be further adjusted through the slotted hole 12, thereby adjusting the distance between the blade holder 1, the blade 2, and the poultry claw.
[0026] In a preferred embodiment of this utility model, the blade holder 1 is provided with a blade groove 13, and the blade 2 is disposed in the blade groove 13, with the end faces 11 located on both sides of the blade 2. During cutting, the skin and flesh on both sides of the blade 2 are pressed against each other, which is more conducive to the blade 2 cutting smoothly and evenly.
[0027] A deboning and tendon-severing device for poultry claws using the aforementioned cutting blade includes a liftable base 4. The base 4 has a blade holder 5 that slides along the length of the large bone of the poultry claw. A cutting blade is mounted on the blade holder 5, and the cutting direction of the blade 2 is consistent with the sliding direction of the blade holder 5. The movement of the blade holder 5 drives the movement of the cutting blade, resulting in more stable cutting by the blade 2. Furthermore, the base 4 is connected to the output end of a lifting drive 6, which is mounted on a frame 100. The base 4 has a back-cutting drive 7 that drives the blade holder 5 to slide. Both the base 4 and the blade holder 5 move via sliding pairs on both sides. Simultaneously, the base 4 presses against the upper pressure mold of the poultry claw fixing mold 200 during back-cutting, further ensuring cutting stability.
[0028] Preferably, the base 4 and the knife holder 5 are respectively provided with a knife holder 1 that accommodates the cutting knife and a first knife groove 41 and a second knife groove 51 that extend into and slide against the bird's claw, guide the movement of the knife holder 1, prevent cutting deviation, and facilitate subsequent deboning of the large bone of the bird's claw.
[0029] In one specific embodiment of this utility model, the knife holder 5 is equipped with a scraper 8 located at the front end of the cutter. The blade of the scraper 8 is laterally in contact with the large bone of the bird's claw, which facilitates scraping through the fascia.
[0030] This utility model of a poultry claw deboning and back-cutting tendon-severing device also includes a poultry claw large bone positioning structure 9 mounted on the frame and a positioning drive 91 for driving its lifting and lowering. The positioning structure 9 includes a radial positioning member 92 located below the poultry claw large bone, the radial positioning member 92 having a notch 921 for accommodating the poultry claw large bone, and the positioning structure 9 also includes an axial positioning member 93 abutting against the end of the poultry claw large bone. The radial positioning member 91 abuts against the lower end of the poultry claw large bone to prevent the poultry claw large bone from being bent or broken during cutting, and the axial positioning member 93 abuts against the brittle bone end face of the large bone to prevent the poultry claw from being moved out of the poultry claw fixing mold 200 during cutting movement, thereby affecting the subsequent automated deboning process.
[0031] The working process of this utility model is as follows: when the poultry claw fixing mold 200 is controlled by the control system to rotate to the back cutting station of this utility model, the lifting drive 6 works to press the seat 4 against the upper mold of the poultry claw fixing mold 200, the cutter holder 1 abuts against the surface of the poultry claw bone, and then the cutting drive 7 works to move the blade holder 5 and drive the blade 2 of the cutter to move and cut the skin and meat on the back of the poultry claw bone. At the same time, the blade 2 does not cut the bone. During the cutting process of the blade 2, the scraper 8 scrapes and cuts the skin and meat fascia connecting the back fascia of the poultry claw to the cartilage, which facilitates the subsequent deboning process of the bone.
Claims
1. A deboning cutter for poultry claws, comprising a cutter holder (1) and a blade (2) disposed on the cutter holder (1), characterized in that: The knife holder (1) has an end face (11) that presses against the skin of the bird's claws, and the blade (2) protrudes from the end face (11).
2. The deboning cutter for poultry claws according to claim 1, characterized in that: The blade (2) is a circular blade connected to the tool holder (1), and the radius of the blade (2) is greater than the distance from its center to the end face (11) of the tool holder (1).
3. The deboning cutter for poultry claws according to claim 2, characterized in that: The free end of the tool holder (1) is arc-shaped, and the end face (11) is an arc surface or a slope.
4. The deboning cutter for poultry claws according to claim 1, characterized in that: The tool holder (1) is connected to an adaptive cylinder (3), and the tool holder (1) is connected to the adaptive cylinder (3) through a strip hole (12).
5. The deboning cutter for poultry claws according to claim 1, characterized in that: The tool holder (1) is provided with a blade groove (13), the blade (2) is disposed in the blade groove (13), and the end face (11) is located on both sides of the blade (2).
6. A device for deboning and severing tendons in poultry claws using the cutter described in any one of claims 1-5, characterized in that: It includes a height-adjustable seat (4), the seat (4) is provided with a knife holder (5) that can slide along the length of the large bone of the bird's claw, the cutter is provided on the knife holder (5), and the cutting direction of the blade (2) of the cutter is consistent with the sliding direction of the knife holder (5).
7. The device for deboning bird claws and severing tendons according to claim 6, characterized in that: The base (4) is connected to the output end of the lifting drive (6), and the base (4) is provided with a back-cutting drive (7) to drive the tool holder (5) to slide.
8. The device for deboning bird claws and severing tendons according to claim 6, characterized in that: The blade holder (5) is provided with a scraper (8) located at the front end of the cutter, and the blade of the scraper (8) is in lateral contact with the large bone of the bird's claw.
9. The device for deboning bird claws and severing tendons according to claim 6, characterized in that: It also includes a positioning structure (9) for the large bird claw bone on the frame and a positioning drive (91) for driving its lifting and lowering. The positioning structure (9) includes a radial positioning member (92) located below the large bird claw bone. The radial positioning member (92) has a notch (921) for accommodating the large bird claw bone. The positioning structure (9) also includes an axial positioning member (93) abutting the end of the large bird claw bone.