Elastic scraper mechanism and poultry carcass breast meat separation device comprising same

Abstract

This invention discloses an elastic scraper mechanism and a poultry carcass breast meat separation device including the same, relating to the technical field of poultry processing equipment. The elastic scraper mechanism includes a scraper, a mounting plate, a rotating shaft, a housing, a bearing, a torsion arm, and a compression spring. When the scraper is subjected to a circumferential force, the mounting plate drives the rotating shaft to rotate, which in turn drives the torsion arm to swing and compress the compression spring, thereby achieving angular rotation of the scraper. The elastic scraper mechanism provided by this invention, through the cooperation of the rotating shaft, bearing, torsion arm, and compression spring, enables the scraper to automatically generate angular rotation when subjected to the reaction force of the sternum, thereby adaptively adjusting the scraper angle and ensuring that the scraper blade edge is always in close contact with the sternum surface, significantly reducing the amount of meat carried by the skeleton and improving the breast meat yield.

Description

Technical Field

[0001] This invention relates to the field of poultry processing equipment technology, specifically to an elastic scraper mechanism and a poultry carcass breast meat separation device including the same. Background Technology

[0002] In the poultry slaughtering and processing industry, the separation and extraction of breast meat is one of the important production processes. Various breast meat separation devices exist in the existing technology; for example, Chinese patent CN217741972U discloses a breast meat separation device that uses a scraper to separate the breast meat from the breastbone. However, in actual production, the technical problem with this device is that, because the scraper is a rigid structure, a gap exists between the scraper and the breastbone due to factors such as the size of the carcass. The scraper cannot always maintain close contact with the breastbone surface, resulting in a large amount of meat attached to the skeleton, a low breast meat yield, and waste of raw materials, thus affecting the economic benefits of the enterprise.

[0003] The reason for the above problems is that the shape of the sternum in poultry carcasses is not completely uniform, exhibiting certain individual differences. Furthermore, the scraper experiences complex forces during movement, and a rigidly fixed scraper cannot automatically adjust its angle to adapt to changes in the sternum shape, making it difficult to achieve a tight fit with the sternum throughout the entire process. Therefore, it is necessary to improve the existing breast meat separation device to increase the yield of breast meat. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an elastic scraper mechanism that can keep the scraper in close contact with the breastbone and improve the yield of breast meat, and a poultry carcass breast meat separation device including the elastic scraper mechanism.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: The flexible scraper mechanism includes: scraper; Mounting plate, the scraper is fixedly mounted on the mounting plate; The rotating shaft is fixedly connected to the mounting plate; The housing has a bearing chamber; A bearing is installed in the bearing chamber of the housing, and the rotating shaft is rotatably installed in the bearing chamber of the housing via the bearing; A torsion arm is fixedly mounted on the rotating shaft and located in the bearing chamber of the housing. When the rotating shaft rotates, it can drive the torsion arm to swing. A compression spring is disposed between the torsion arm and the housing; When the scraper is subjected to a circumferential force, the mounting plate drives the rotating shaft to rotate, and the rotating shaft drives the torsion arm to swing and compress the compression spring, thereby realizing the angular rotation of the scraper.

[0006] As a preferred technical solution, the bearing includes at least two bearings, which are respectively disposed at both ends of the rotating shaft.

[0007] As a preferred technical solution, the rotating shaft includes a first half-shaft and a second half-shaft. The first half-shaft is provided with a torsion arm mounting part, and the second half-shaft is provided with a bearing cover. The first half-shaft and the second half-shaft are detachably connected.

[0008] As a preferred technical solution, the torsion arm is provided with a torsion arm mounting hole, and the torsion arm is fitted onto the torsion arm mounting part.

[0009] As a preferred technical solution, the compression spring is a helical compression spring.

[0010] As a preferred technical solution, a compression spring locking seat is installed on the housing, a compression spring guide rod is provided on the compression spring locking seat, a compression spring limiting groove is provided on the torsion arm, the compression spring is sleeved on the compression spring guide rod, one end of the compression spring abuts against the compression spring limiting groove, and the other end abuts against the compression spring locking seat.

[0011] As a preferred technical solution, the mounting plate is provided with a positioning part, and the scraper is provided with a positioning groove that cooperates with the positioning part.

[0012] As a preferred technical solution, the housing is provided with a torsion arm limiting groove for limiting the swing angle of the torsion arm.

[0013] As a preferred technical solution, the scraper is detachably mounted on the mounting plate.

[0014] The present invention also provides a poultry carcass breast meat separation device, including a slide rod, an upper slide seat and a lower slide seat slidably mounted on the slide rod, and sliding members fixedly connected to the back sides of the upper slide seat and the lower slide seat respectively; two upper connecting rods are installed on the front side of the upper slide seat, and scraper arms are fixedly connected to the two upper connecting rods respectively; a pressure rod and two lower connecting rods are installed on the front side of the lower slide seat, and the two lower connecting rods are respectively hinged to the scraper arms on the corresponding sides; the above-described elastic scraper mechanism is fixedly connected to the two scraper arms respectively.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The elastic scraper mechanism provided by the present invention, through the cooperation of the rotating shaft, bearing, torsion arm and compression spring, enables the scraper to automatically rotate in the angular direction when subjected to the reaction force of the sternum, thereby adaptively adjusting the scraper angle and ensuring that the scraper blade is always in close contact with the surface of the sternum, significantly reducing the amount of meat carried by the skeleton and improving the yield of breast meat.

[0016] (2) The rotating shaft adopts a split and detachable connection structure, which facilitates the installation, maintenance and replacement of the internal torsion arm and compression spring. The two ends of the rotating shaft are supported by double bearings, which ensures the smoothness of the scraper rotation and the positioning accuracy, and avoids the scraper shaking.

[0017] (3) By setting the spring locking seat, the spring guide rod and the spring limiting groove on the torsion arm, the stable compression and rebound of the spring during the working process is ensured, and the reliability of the mechanism is improved.

[0018] (4) The scraper and mounting plate adopt a detachable and positioning structure, which facilitates quick replacement of worn scrapers and reduces maintenance costs.

[0019] (5) After applying the elastic scraper mechanism to the poultry carcass breast meat separation device, the overall equipment’s adaptability to individual differences in carcasses is greatly improved, and production efficiency and product yield are optimized. Attached Figure Description

[0020] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the invention. Wherein: Figure 1 This is a schematic diagram of the main structure of the elastic scraper mechanism in Embodiment 1 of the present invention; Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 This is a three-dimensional exploded view of the elastic scraper mechanism in Embodiment 1 of the present invention; Figure 4 This is a three-dimensional exploded view of the elastic scraper mechanism in another direction according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the assembly relationship of the rotating shaft, torsion arm and compression spring in Embodiment 1 of the present invention; Figure 6 This is a reference diagram showing the state of the scraper when the torsion arm swings under the influence of circumferential force. Figure 7 This is a schematic diagram of the poultry carcass breast meat separation device in Embodiment 2 of the present invention; Figure 8 This is a schematic diagram of the poultry carcass breast meat separation device from another direction in Embodiment 2 of the present invention.

[0021] In the diagram: 1-Scraper; 11-Positioning groove; 2-Mounting plate; 21-Positioning part; 3-Rotating shaft; 31-First half-shaft; 311-Torsion arm mounting part; 32-Second half-shaft; 321-Bearing cover; 4-Housing; 41-Torsion arm limiting groove; 5-Bearing; 6-Torsion arm; 61-Torsion arm mounting hole; 62-Compression spring limiting groove; 7-Compression spring; 8-Compression spring locking seat; 81-Compression spring guide rod; 100-Elastic scraper mechanism; 200-Slide rod; 300-Upper slide seat; 301-Lower slide seat; 302-Sliding component; 303-Upper connecting rod; 304-Scraper support arm; 305-Pressure rod; 306-Lower connecting rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0023] Example 1 like Figures 1 to 4 As shown, the elastic scraper mechanism includes a scraper 1, a mounting plate 2, a rotating shaft 3, a housing 4, a bearing 5, a torsion arm 6, and a compression spring 7.

[0024] The scraper 1 is detachably fixed to the mounting plate 2 by bolts. To achieve rapid and accurate positioning, the upper end of the mounting plate 2 is provided with a positioning part 21, and the scraper 1 is provided with a positioning groove 11 that cooperates with the positioning part 21. This structure not only ensures the installation accuracy of the scraper 1, but also facilitates quick replacement after the scraper 1 wears out, effectively reducing downtime for equipment maintenance.

[0025] The rotating shaft 3 is fixedly connected to the mounting plate 2 (e.g., by welding or keying). The housing 4 has a bearing chamber inside. The rotating shaft 3 is rotatably mounted in the bearing chamber of the housing 4 via the bearings 5. To improve rotational stability and reduce radial runout of the scraper 1 during operation, this embodiment uses two bearings 5, respectively located at both ends of the rotating shaft 3. This double-bearing support structure ensures smooth rotation of the scraper 1 under load, avoiding uneven scraping or jamming caused by the shaking of the rotating shaft 3.

[0026] refer to Figures 2 to 4The torsion arm 6 is fixedly mounted on the rotating shaft 3 and located in the bearing chamber of the housing 4. Specifically, the rotating shaft 3 includes a first half-shaft 31 and a second half-shaft 32. The first half-shaft 31 is provided with a torsion arm mounting part 311 (e.g., a hexagonal shaft section or a flat square shaft section), and the torsion arm 6 is provided with a torsion arm mounting hole 61. The torsion arm 6 is fitted onto the torsion arm mounting part 311. The second half-shaft 32 is provided with a bearing cap 321 for axial positioning of the outer bearing 5. The first half-shaft 31 and the second half-shaft 32 have a connecting hole at their center, and the two are detachably connected by bolts. This split-type rotating shaft design greatly facilitates the assembly and maintenance of the internal torsion arm 6 and the compression spring 7, reducing manufacturing costs and the difficulty of later maintenance.

[0027] When the rotating shaft 3 rotates, it drives the torsion arm 6 to swing. The compression spring 7 is disposed between the torsion arm 6 and the housing 4. In this embodiment, the compression spring 7 is a helical compression spring, which has linear force characteristics and is easy to adjust the preload by replacing compression springs of different wire diameters or lengths. By replacing compression springs 7 with different stiffnesses, the contact pressure of the scraper 1 can be easily adjusted, allowing one machine to adapt to various processing needs.

[0028] refer to Figure 4 and Figure 5 To ensure stable installation of the compression spring 7 and prevent lateral bending, a compression spring locking seat 8 is installed on the housing 4. A compression spring guide rod 81 is provided on the compression spring locking seat 8, and a compression spring limiting groove 62 is provided on the torsion arm 6. The compression spring 7 is sleeved on the compression spring guide rod 81, with one end abutting against the compression spring limiting groove 62 and the other end abutting against the compression spring locking seat 8. The spring guiding system, consisting of the compression spring guide rod 81, the compression spring limiting groove 62, and the compression spring locking seat 8, ensures that the compression spring 7 maintains the correct axial posture during frequent compression and rebound, preventing skewing or instability during operation and ensuring linear and consistent spring force output. The helical compression spring combined with the limiting structure has a longer fatigue life and more stable force attenuation characteristics, making it particularly suitable for high-speed, continuous slaughtering and processing production lines.

[0029] In addition, the housing 4 is provided with a torsion arm limiting groove 41 to limit the swing angle of the torsion arm 6, thereby limiting the maximum angular rotation range of the scraper 1. This design can prevent the scraper 1 from rotating excessively due to accidental force (such as encountering a hard protrusion or foreign object on the sternum) and avoid collision damage between the scraper 1 and other components.

[0030] refer to Figure 6When scraper 1 moves along the surface of the sternum, it experiences a circumferential force (torque) if the sternum contour changes. This force is transmitted to the rotating shaft 3 via the mounting plate 2, causing the shaft 3 to rotate against the spring force of the compression spring 7. This causes the torsion arm 6 to swing, and scraper 1 automatically changes its cutting edge angle. This dynamic response process allows the scraper blade to "follow the shape," always pressing against the sternum surface at the optimal contact angle. Practical application tests show that using the elastic scraper mechanism of this embodiment significantly reduces the amount of meat carried by the skeleton, increases the yield of breast meat by 5%-10%, and directly increases the product value of the enterprise.

[0031] Example 2 Please see Figure 7 and Figure 8 This embodiment provides a poultry carcass breast meat separation device, including two slide rods 200, an upper slide seat 300 and a lower slide seat 301 slidably mounted on the slide rods 200. Sliding elements 302 (such as linear bearings or sliders) are fixedly connected to the back sides of the upper slide seat 300 and the lower slide seat 301, respectively. Two upper connecting rods 303 are mounted on the front side of the upper slide seat 300, and scraper arms 304 are fixedly connected to the two upper connecting rods 303. A pressure rod 305 and two lower connecting rods 306 are mounted on the front side of the lower slide seat 301, and the two lower connecting rods 306 are hinged to the corresponding scraper arms 304. An elastic scraper mechanism 100 as described in Embodiment 1 is fixedly connected to the two scraper arms 304.

[0032] The work process is as follows: During operation, the upper slide 300 and lower slide 301 move up and down along the slide rod 200 under the drive of the external drive mechanism. The lower slide 301 pushes the scraper support arm 304 to swing around the hinge point through the lower connecting rod 306, causing the elastic scraper mechanisms 100 on the left and right sides to move towards or away from each other, thereby clamping or releasing the carcass. The upper slide 300 drives the scraper support arm 304 to move up and down through the upper connecting rod 303, causing the scraper 1 to scrape along the longitudinal direction of the sternum.

[0033] During this process, the pressure bar 305 contacts the carcass before the scraper 1, serving to fix and position the carcass and prevent it from slipping during scraping. Subsequently, under the action of the elastic scraper mechanism 100, the left and right scrapers 1 independently adhere to the corresponding side of the sternum surface. Since each side of the elastic scraper mechanism 100 has independent angular adaptive capability, even if the sternum of the carcass is asymmetrical (which is very common in naturally raised poultry), the scrapers 1 on both sides can be adjusted to the optimal angle to achieve efficient symmetrical separation.

[0034] Through comparative testing on actual production lines, at the same conveying speed (e.g., 3000 birds / hour), the device of this embodiment yields an average of 8-12 grams more breast meat per bird compared to the traditional rigid scraper device. Based on an annual processing capacity of 10 million birds, this translates to an additional 80-120 tons of breast meat production, demonstrating significant economic benefits.

[0035] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. An elastic scraper mechanism, characterized in that, include: scraper; Mounting plate, the scraper is fixedly mounted on the mounting plate; The rotating shaft is fixedly connected to the mounting plate; The housing has a bearing chamber; A bearing is installed in the bearing chamber of the housing, and the rotating shaft is rotatably installed in the bearing chamber of the housing via the bearing; A torsion arm is fixedly mounted on the rotating shaft and located in the bearing chamber of the housing. When the rotating shaft rotates, it can drive the torsion arm to swing. A compression spring is disposed between the torsion arm and the housing; When the scraper is subjected to a circumferential force, the mounting plate drives the rotating shaft to rotate, and the rotating shaft drives the torsion arm to swing and compress the compression spring, thereby realizing the angular rotation of the scraper.

2. The elastic scraper mechanism as described in claim 1, characterized in that: The bearings include at least two, which are respectively disposed at both ends of the rotating shaft.

3. The elastic scraper mechanism as described in claim 2, characterized in that: The rotating shaft includes a first half-shaft and a second half-shaft. The first half-shaft is provided with a torsion arm mounting part, and the second half-shaft is provided with a bearing cover. The first half-shaft and the second half-shaft are detachably connected.

4. The elastic scraper mechanism as described in claim 1, characterized in that: The torsion arm is provided with a torsion arm mounting hole, and the torsion arm is fitted onto the torsion arm mounting part.

5. The elastic scraper mechanism as described in claim 1, characterized in that: The compression spring is a helical compression spring.

6. The elastic scraper mechanism as described in claim 5, characterized in that: A spring locking seat is installed on the housing, a spring guide rod is provided on the spring locking seat, a spring limiting groove is provided on the torsion arm, the spring is sleeved on the spring guide rod, one end of the spring abuts against the spring limiting groove, and the other end abuts against the spring locking seat.

7. The elastic scraper mechanism as described in claim 1, characterized in that: The mounting plate is provided with a positioning part, and the scraper is provided with a positioning groove that cooperates with the positioning part.

8. The elastic scraper mechanism as described in claim 1, characterized in that: The housing is provided with a torsion arm limiting groove for limiting the swing angle of the torsion arm.

9. The elastic scraper mechanism as described in claim 1, characterized in that: The scraper is detachably mounted on the mounting plate.

10. A poultry carcass breast meat separation device, comprising a slide rod, an upper slide seat and a lower slide seat slidably mounted on the slide rod, wherein sliding members are fixedly connected to the back sides of the upper slide seat and the lower slide seat respectively; two upper connecting rods are mounted on the front side of the upper slide seat, and scraper support arms are fixedly connected to the two upper connecting rods respectively; a pressure rod and two lower connecting rods are mounted on the front side of the lower slide seat, and the two lower connecting rods are respectively hinged to the scraper support arms on the corresponding sides; characterized in that: The two scraper arms are respectively fixedly connected with the elastic scraper mechanism according to any one of claims 1 to 9.

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