A kernel extractor for pecans

By introducing a sloping trough and a power-driven screening frame structure into the walnut kernel extraction device, the problem of difficult screening of walnut shells and kernels mixed in the separation chamber is solved, enabling rapid screening and convenient disassembly, and improving classification efficiency.

CN224420024UActive Publication Date: 2026-06-30NINGXIA JINYU BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521468443.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-06-30
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

In existing pecan kernel extraction devices, broken pecan shells and small pieces of pecan kernels are mixed together inside the separation chamber, making it difficult to effectively sieve them and affecting the classification efficiency.

Method used

A kernel-removing device was designed, comprising components such as a ramp, a screening frame, a baffle, and an elastic hemisphere. The broken walnut shells slide out through the ramp, and the screening frame is driven back and forth by a cylinder and a motor to achieve rapid screening and convenient disassembly.

Benefits of technology

It enables efficient screening of broken walnut shells and small pieces of walnut kernels, improves screening speed, and facilitates cleaning and maintenance of the screening frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a kernel-extracting device for hickory nuts, including a kernel extractor. A feed inlet is located on one side of the upper outer surface of the kernel extractor, and a discharge outlet is located on one side of the lower outer surface of the front end of the kernel extractor. A separation chamber is located on one side of the discharge outlet. A screening mechanism is located on the front outer surface of the kernel extractor. The screening mechanism includes a ramp, a screening frame, a groove, a sieve plate, a baffle, a sliding plate, a limiting plate, a first elastic hemisphere, a second elastic hemisphere, a chute, a fixing plate, a fixing frame, a connecting plate, a cylinder, a limiting groove, a limiting block, a rotating shaft, an eccentric wheel, and a motor. This kernel-extracting device for hickory nuts allows for convenient screening of broken walnut shells and small pieces of walnut kernels fed into the separation chamber. The broken walnut shells slide out through the ramp, facilitating the back-and-forth movement of the screening frame, accelerating the screening speed, and making it easy to disassemble and clean the screening frame, thus offering better application prospects.
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Description

Technical Field

[0001] This utility model relates to the field of pecan kernel extracting machines, specifically a kernel extracting device for pecans. Background Technology

[0002] A pecan kernel extractor is a specialized mechanical device for processing pecans. It is primarily used for cracking, shelling, and kernel extraction to improve the efficiency and quality of pecan processing. In the existing technology, a Chinese patent application with application number CN202420296586.X describes a pecan kernel extractor. This patent uses a shell-cracking mechanism to crack the pecans, after which the shells and kernels fall into a feeding chamber. Larger kernels fall directly onto a second placement platform, while broken shells and lighter kernels are blown into a separation tube by a blower. The kernels are then extracted by the rotation of a separation rod. Centrifugal force separates the walnut shells and kernels, and the separated shells and kernels fall onto the first placement platform. This device can extract larger, intact walnut kernels in one go, completing the shelling and kernel extraction in one operation, thus improving the efficiency of shelling and kernel extraction and facilitating large-scale kernel extraction in factories. In an existing kernel extraction device for pecans, the broken walnut shells and small pieces of walnut kernels are mixed together inside the separation chamber, making it inconvenient to sieve and affecting classification, which has certain adverse effects on the user process. Therefore, we propose a kernel extraction device for pecans. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a kernel extraction device for walnuts, which has the advantages of easily screening broken walnut shells and small pieces of walnut kernels fed into the separation chamber, allowing the broken walnut shells to slide out through the inclined groove, facilitating the back-and-forth movement of the screening frame, accelerating the screening speed, and making it easy to disassemble and clean the screening frame. This effectively solves the problems in the prior art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a kernel-extracting device for hickory nuts, comprising a kernel extractor, an inlet provided on one side of the upper outer surface of the kernel extractor, a discharge port provided on one side of the lower outer surface of the front end of the kernel extractor, a separation chamber provided on one side of the discharge port, and a screening mechanism provided on the front outer surface of the kernel extractor. The screening mechanism includes an inclined trough, a screening frame, a groove, a sieve plate, a baffle, a sliding plate, a limiting plate, a first elastic hemisphere, a second elastic hemisphere, a chute, a fixing plate, a fixing frame, a connecting plate, a cylinder, a limiting groove, a limiting block, a rotating shaft, an eccentric wheel, and a motor, comprising two sets of... The sliding grooves are respectively opened on the upper ends of the outer surfaces of both sides of the separation chamber. The screening frame is located in the middle of the separation chamber. The baffle is located on the front outer surface of the screening frame. The two sets of sliding plates are respectively located on the upper ends of the outer surfaces of both sides of the screening frame. The groove is located in the middle of the upper outer surface of the screening frame. The sieve plate is located in the middle of the lower outer surface of the screening frame. The limiting plate is located at the rear end of the lower outer surface of the screening frame. Multiple sets of first elastic hemispheres are located on the rear outer surface of the limiting plate. Multiple sets of second elastic hemispheres are respectively located at the upper and lower ends of the rear outer surface of the baffle. The number of first elastic hemispheres and second elastic hemispheres is not less than eight sets.

[0007] Preferably, the inclined groove is located on the lower inner surface of the separation chamber, the fixing plate is located on the upper end of one side of the outer surface of the front end of the kernel extractor, the fixing frame is located at the rear end of the lower outer surface of the fixing plate, and the limiting groove is opened at the lower end of the middle of the outer surface of the front end of the fixing frame.

[0008] Preferably, the cylinder is located on the upper outer surface of the fixed plate, the connecting plate is located at the lower end of the cylinder, the limiting block is located on the rear outer surface of the connecting plate, the motor is located on the upper end of the front outer surface of the connecting plate, the rotating shaft is located at the lower end of the motor, and the eccentric wheel is located on the lower outer surface of the rotating shaft.

[0009] Preferably, the screening frame and the separation cavity are plugged in, the slide plate and the chute are slidably connected, the first elastic hemisphere and the limiting plate are fixedly connected, and the second elastic hemisphere and the baffle are fixedly connected.

[0010] Preferably, the limiting block and the limiting groove are slidably connected.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a device for extracting kernels from pecans, which has the following beneficial effects:

[0013] 1. This is a device for extracting kernels from walnuts, which can conveniently screen the broken walnut shells and small pieces of walnut kernels fed into the separation chamber, and the broken walnut shells slide out through the inclined trough.

[0014] 2. This device for extracting kernels from pecans can easily move the screening frame back and forth, speeding up the screening process and facilitating the disassembly and cleaning of the screening frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a walnut kernel extraction device according to the present invention.

[0016] Figure 2 This is a side sectional view of a pecan kernel extraction device according to the present invention.

[0017] Figure 3 This is a structural diagram of the screening frame in a walnut kernel extraction device according to the present invention.

[0018] Figure 4 This utility model relates to a device for extracting kernels from pecans. Figure 1 Enlarged view of point A in the middle.

[0019] Figure 5 This is a structural diagram of the eccentric wheel in a walnut kernel extraction device according to the present invention.

[0020] In the diagram: 1. Kernel extractor; 2. Feed inlet; 3. Discharge outlet; 4. Separation chamber; 5. Screening mechanism; 6. Inclined trough; 7. Screening frame; 8. Groove; 9. Screen plate; 10. Baffle; 11. Slide plate; 12. Limiting plate; 13. First elastic hemisphere; 14. Second elastic hemisphere; 15. Slide groove; 16. Fixing plate; 17. Fixing frame; 18. Connecting plate; 19. Cylinder; 20. Limiting groove; 21. Limiting block; 22. Rotating shaft; 23. Eccentric wheel; 24. Motor. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] This embodiment is a device for extracting kernels from pecans.

[0023] like Figure 1-5As shown, the device includes a kernel extractor 1. A feed inlet 2 is located on one side of the upper outer surface of the kernel extractor 1. A discharge outlet 3 is located on one side of the lower end of the front outer surface of the kernel extractor 1. A separation chamber 4 is located on one side of the discharge outlet 3. A screening mechanism 5 is located on the front outer surface of the kernel extractor 1. The screening mechanism 5 includes a ramp trough 6, a screening frame 7, a groove 8, a sieve plate 9, a baffle 10, a sliding plate 11, a limiting plate 12, a first elastic hemisphere 13, a second elastic hemisphere 14, a sliding groove 15, a fixing plate 16, a fixing frame 17, a connecting plate 18, a cylinder 19, a limiting groove 20, a limiting block 21, a rotating shaft 22, an eccentric wheel 23, and a motor 24. Two sets of sliding grooves 15 are... The separation chamber 4 is located on the upper part of the outer surface on both sides. The screening frame 7 is located in the middle of the separation chamber 4. The baffle 10 is located on the front outer surface of the screening frame 7. Two sets of sliding plates 11 are located on the upper part of the outer surface on both sides of the screening frame 7. The groove 8 is located in the middle of the upper outer surface of the screening frame 7. The sieve plate 9 is located in the middle of the lower outer surface of the screening frame 7. The limiting plate 12 is located at the rear end of the lower outer surface of the screening frame 7. Multiple sets of first elastic hemispheres 13 are located on the rear outer surface of the limiting plate 12. Multiple sets of second elastic hemispheres 14 are located at the upper and lower ends of the rear outer surface of the baffle 10. The number of first elastic hemispheres 13 and second elastic hemispheres 14 is not less than eight sets.

[0024] The inclined groove 6 is located on the lower inner surface of the separation chamber 4, the fixed plate 16 is located on the upper end of one side of the front outer surface of the kernel extractor 1, the fixed frame 17 is located at the rear end of the lower outer surface of the fixed plate 16, and the limiting groove 20 is opened at the lower end of the middle of the front outer surface of the fixed frame 17; the cylinder 19 is located on the upper outer surface of the fixed plate 16, the connecting plate 18 is located at the lower end of the cylinder 19, the limiting block 21 is located on the rear outer surface of the connecting plate 18, the motor 24 is located on the upper end of the front outer surface of the connecting plate 18, the rotating shaft 22 is located at the lower end of the motor 24, and the eccentric wheel 23 is located on the lower outer surface of the rotating shaft 22; the screening frame 7 is inserted into the separation chamber 4, the slide plate 11 is slidably connected to the slide groove 15, the first elastic hemisphere 13 is fixedly connected to the limiting plate 12, the second elastic hemisphere 14 is fixedly connected to the baffle 10, and the limiting block 21 is slidably connected to the limiting groove 20.

[0025] It should be noted that this utility model is a device for extracting kernels from walnuts. After aligning the baffle 10 with the separation chamber 4, the slide plate 11 slides along the slide groove 15, extending the screening frame 7 into the separation chamber 4. The broken walnut shells and small pieces of walnut kernels fall into the groove 8 and are screened by the sieve plate 9. The starting cylinder 19 drives the connecting plate 18 to descend, while simultaneously driving the limiting block 21 to slide along the limiting groove 20, moving the eccentric wheel 23 to the front end of the baffle 10. The starting motor 24 drives the rotating shaft 22 to rotate, while simultaneously driving the eccentric wheel 23. The rotation causes the baffle 10 to be struck. The first elastic hemisphere 13 at the rear end of the limiting plate 12 impacts the kernel extractor 1 and rebounds. The second elastic hemisphere 14 impacts the kernel extractor 1 and rebounds, causing the baffle 10 to rebound. This causes the screening frame 7 to move back and forth along the separation chamber 4 for screening. This facilitates the screening of broken walnut shells and small pieces of walnut kernels fed into the separation chamber 4. The broken walnut shells slide out through the inclined groove 6, which facilitates the movement of the screening frame 7 back and forth, speeds up the screening process, and makes it easier to disassemble and clean the screening frame 7.

[0026] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shelling device for hickory nuts, comprising a shelling machine (1), characterized in that: The kernel extractor (1) has a feed inlet (2) on one side of its upper outer surface, a discharge outlet (3) on one side of its lower front outer surface, a separation chamber (4) on one side of the discharge outlet (3), and a screening mechanism (5) on the front outer surface of the kernel extractor (1). The screening mechanism (5) includes a ramp (6), a screening frame (7), a groove (8), a sieve plate (9), a baffle (10), a sliding plate (11), a limiting plate (12), a first elastic hemisphere (13), a second elastic hemisphere (14), a chute (15), a fixing plate (16), a fixing frame (17), a connecting plate (18), a cylinder (19), a limiting groove (20), a limiting block (21), a rotating shaft (22), an eccentric wheel (23), and a motor (24). The two sets of chute (15) The screening frame (7) is located in the middle of the separation cavity (4), the baffle (10) is located on the front outer surface of the screening frame (7), the two sets of sliding plates (11) are located on the upper ends of the outer surfaces of the two sides of the screening frame (7), the groove (8) is located in the middle of the upper outer surface of the screening frame (7), the sieve plate (9) is located in the middle of the lower outer surface of the screening frame (7), the limiting plate (12) is located at the rear end of the lower outer surface of the screening frame (7), multiple sets of first elastic hemispheres (13) are located on the rear outer surface of the limiting plate (12), and multiple sets of second elastic hemispheres (14) are located at the upper and lower ends of the rear outer surface of the baffle (10), and the number of first elastic hemispheres (13) and second elastic hemispheres (14) is not less than eight sets.

2. The kernel extraction device for pecans according to claim 1, characterized in that: The inclined groove (6) is located on the lower inner surface of the separation chamber (4), the fixing plate (16) is located on the upper end of the outer surface of the front end of the kernel extractor (1), the fixing frame (17) is located at the rear end of the lower outer surface of the fixing plate (16), and the limiting groove (20) is opened at the lower end of the middle of the outer surface of the front end of the fixing frame (17).

3. The kernel extraction device for pecans according to claim 2, characterized in that: The cylinder (19) is located on the upper outer surface of the fixed plate (16), the connecting plate (18) is located at the lower end of the cylinder (19), the limiting block (21) is located on the rear outer surface of the connecting plate (18), the motor (24) is located on the upper end of the front outer surface of the connecting plate (18), the rotating shaft (22) is located at the lower end of the motor (24), and the eccentric wheel (23) is located on the lower outer surface of the rotating shaft (22).

4. The kernel extraction device for pecans according to claim 3, characterized in that: The screening box (7) and the separation cavity (4) are connected by insertion, the slide plate (11) and the slide groove (15) are connected by sliding connection, the first elastic hemisphere (13) and the limiting plate (12) are connected by fixed connection, and the second elastic hemisphere (14) and the baffle (10) are connected by fixed connection.

5. A kernel-extracting device for pecans according to claim 4, characterized in that: The limiting block (21) and the limiting groove (20) are slidably connected.

Citation Information

Patent Citations

  • Kernel taking device for hickory nuts

    CN222074379U