Small nut sheller

By integrating a shell and kernel sorting machine with a kernel sorting machine, and combining vibration screening and cyclone separation, the nut shelling machine solves the problems of high unshelled rate and insufficient capacity in existing equipment, and achieves efficient nut shelling and separation.

CN223915968UActive Publication Date: 2026-02-17INOVA TECH (DALIAN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423245614.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-02-17
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing small-scale nut shelling equipment produces unshelled nuts, partially shelled nuts, broken nut kernels, and nut skins in the shelled material, resulting in low shelling efficiency and insufficient production capacity, requiring secondary processing that further impacts efficiency.

Method used

A small nut shelling machine was designed, integrating a shell and kernel sorting machine and a kernel sorting machine. It uses vibration screening and cyclone separator combined with negative pressure extraction to separate the nut shells, achieving fine separation of materials and reducing the unshelled rate and breakage rate.

Benefits of technology

It improved shelling efficiency and production capacity, reduced the proportion of nut shells requiring secondary processing, reduced the labor intensity of workers, and improved the overall processing effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223915968U_ABST
    Figure CN223915968U_ABST
Patent Text Reader

Abstract

The utility model discloses a small nut sheller which comprises a supporting frame, a sheller head is erected on the supporting frame, and a feeding port and a discharging port are formed in the sheller head. A husk, seed and kernel sorting machine is arranged below the huller head and is connected into the support frame through a vibration spring; a seed kernel sorting machine is arranged below the husk and seed kernel sorting machine and is connected into the supporting frame through a vibration spring; a material returning assembly is arranged at a lower discharging opening of the husk-seed kernel sorting machine and a lower discharging opening of the seed kernel sorting machine, and the material returning assembly is fixed to the supporting frame; the material returning assembly is connected with a feeding port in the inner side of the lower portion of the feeding assembly, and the feeding assembly is fixed to the supporting frame. The feeding assembly is connected with the huller head. According to the nut huller, primary hulling and secondary hulling of nuts are achieved, separation of unhulled nuts, nut skins, whole kernels and broken kernels in hulled materials is achieved, the separation effect is improved, and the nut huller has the advantages of being compact in structure and complete in function.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, specifically a small nut shelling machine. Background Technology

[0002] Nuts are mostly the seeds or fruits of plants, and are the most essential part of plants. They are generally rich in nutrients, containing abundant protein, oils, minerals, and various vitamins, which have excellent effects on human growth and development, strengthening the body, and preventing diseases.

[0003] Due to the large quantity of nuts, manual shelling is extremely inefficient. Therefore, existing nut shelling processes typically utilize nut shelling equipment. Existing small-scale nut shelling equipment usually includes a shelling machine head with a feed hopper at the top and a discharge port at the bottom. A shell-breaking device is rotatably connected to the machine head and driven by a motor. In operation, workers directly feed small nuts into the feed hopper. The motor drives the shell-breaking device at high speed, breaking the nuts and discharging the kernels and shells together from the discharge port of the machine head.

[0004] When using the above-mentioned prior art, the inventors discovered the following problems:

[0005] Existing small-scale nut shelling equipment typically produces a mixture of unshelled and partially shelled nuts, broken kernels, and nut skins in the processed material. Unshelled and partially shelled nuts need to be fed into the shelling machine head for secondary shelling. However, during the secondary shelling process, the existing equipment also processes the nut skins that have not been separated, which affects the shelling efficiency and production capacity. Utility Model Content

[0006] The purpose of this invention is to provide a small nut shelling machine that reduces the proportion of nut shells not separated during secondary shelling, improves shelling efficiency and production capacity, and solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A small nut shelling machine includes a support frame, on which a shelling machine head is mounted. The shelling machine head has an inlet and an outlet. Below the shelling machine head is a shell-seed-kernel separator connected to the support frame via a vibration spring. Below the shell-seed-kernel separator is a kernel separator connected to the support frame via a vibration spring. A return assembly is provided at the outlets of both the shell-seed-kernel separator and the kernel separator, and is fixed to the support frame. The return assembly is connected to the inner inlet below a feeding assembly, which is also fixed to the support frame. The feeding assembly is connected to the shelling machine head.

[0009] Preferably, a kernel sorting machine is provided below the peel and kernel sorting machine, and the kernel sorting machine is connected to the support frame by a vibration spring.

[0010] Preferably, the end of the kernel sorting machine away from the head of the shelling machine is equipped with a cyclone separator, which is connected to a fan. The cyclone separator is positioned above the kernel sorting machine, and the other end is connected to the fan, which is mounted on a support frame.

[0011] Preferably, the shell and kernel sorting machine and the kernel sorting machine's lower discharge port are equipped with a return material component, which is fixed on the support frame. The return material component is connected to the inner feed port below the feeding component, which is fixed on the support frame and connected to the shelling machine head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model shelling machine adopts a brand-new design, integrating primary shelling, secondary shelling, separation of unshelled kernels and separation of crushed kernels into one unit, and features a compact structure and complete functions.

[0014] 2. After dehulling, all materials enter the peel and kernel sorting machine and the kernel sorting machine for screening. The screens of the peel and kernel sorting machine and the kernel sorting machine are used to separate the materials into finer particles, which further improves the production capacity.

[0015] 3. During the material transportation process, the combined action of the fan and cyclone separator creates a negative pressure state at the discharge end of the kernel and nut sorting machine, thereby removing the nut skins and eliminating the need for workers to sort the nut skins, thus further improving production capacity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the structure of this utility model;

[0018] In the diagram: 1. Feeding assembly; 2. Shelling machine head; 3. Peel and kernel sorting machine; 4. Kernel sorting machine; 5. Return assembly; 6. Support frame; 7. Fan; 71. Cyclone separator. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a small nut shelling machine, including a long strip support frame 6, a feeding component 1 is mounted on one side of the support frame 6, and the feeding component 1 has a corresponding inlet and outlet.

[0021] Please see Figure 1 and Figure 2 The shelling machine head 2 is mounted on one end of the support frame 6. The shelling machine head 2 has corresponding feed inlet and discharge outlet.

[0022] Please see Figure 1 and Figure 2 Below the shelling machine head 2, a long strip-shaped kernel and husk separator 3 is installed. The kernel and husk separator 3 is connected to the support frame 6 via a vibration spring. The kernel and husk separator 3 has an upper screen and a lower screen. One end of the kernel and husk separator 3 is located below the shelling machine head 2. At the end of the kernel and husk separator 3 away from the shelling machine head 2, a cyclone separator 71 is installed. The cyclone separator 71 is connected to a blower 7. One end of the cyclone separator 71 covers the kernel and husk separator 3, and the other end is connected to the blower 7, which is mounted on the support frame 6.

[0023] Please see Figure 1 and Figure 2 Below the kernel and husk sorting machine 3, there is a long strip kernel sorting machine 4. The kernel sorting machine 4 is set parallel to the kernel and husk sorting machine 3. The kernel sorting machine 4 is connected to the support frame by a vibration spring.

[0024] Please see Figure 1 and Figure 2 A return material assembly 5 is provided on one side of the lower discharge port of the shell and kernel sorting machine 3 and the kernel sorting machine 4. The lower part of the return material assembly 5 is connected to the lower feed port of the feeding assembly 1. The upper discharge port of the feeding assembly 1 is connected to the feed port of the shelling machine head 2.

[0025] Working principle: The material enters from the feed inlet below the outer side of the feeding assembly 1, is lifted by the feeding assembly 1, and is discharged from the discharge outlet, falling into the feed inlet of the shelling machine head 2. After being centrifugally deshelled inside the shelling machine head 2, the material is discharged from the discharge outlet below the shelling machine head 2 and falls into the shell, seed, and kernel sorting machine 3. The deshelled material includes unshelled nuts, nut shells, nut kernels, and a small amount of broken kernels.

[0026] The kernel and husk separator 3 has two screens, upper and lower. Material is conveyed via vibration to the rear air chamber of the upper screen. A blower 7 draws air from the air chamber of the kernel and husk separator 3, creating negative pressure that carries away the nuts from the material, discharging them through a cyclone separator 71. The remaining material falls from the end of the upper screen of the kernel and husk separator 3 into the lower screen, which is inclined. At this point, the material contains whole nuts, a small amount of broken nuts, and a small amount of unshelled nuts. Due to density differences, some unshelled nuts are discharged through the lower outlet during vibration and enter the return material assembly 5, while the remaining material is discharged through the upper outlet and falls into the kernel and husk separator 4. The kernel and husk separator 4 has an inclined screen. During vibration, the remaining unshelled nuts in the material are discharged through the lower outlet of the kernel and husk separator 4 and enter the return material assembly 5, while the nut kernels and a small amount of broken nuts are discharged through the upper outlet and proceed to the next process. Unshelled nuts falling into the return material assembly 5 are discharged from the lower outlet of the return material assembly 5 and enter the inner inlet below the feeding assembly 1. After being lifted by the feeding assembly 1, they are discharged from the outlet and fall into the inlet of the shelling machine head 2 for secondary shelling. This technical solution improves the efficiency of material separation after shelling and reduces the breakage rate of nut kernels during secondary shelling. Simultaneously, it reduces the labor intensity of workers and increases production capacity.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small nut sheller comprising a support frame (6) on which a sheller head (2) is mounted, characterized in that: The sheller head (2) is provided with corresponding feed inlet and discharge outlet; the sheller head (2) is provided below with a skin seed kernel sorting machine (3), the skin seed kernel sorting machine (3) is connected in the support frame (6) through a vibrating spring; the skin seed kernel sorting machine (3) is provided below with a seed kernel sorting machine (4), the seed kernel sorting machine (4) is connected in the support frame (6) through a vibrating spring; the skin seed kernel sorting machine (3) and the seed kernel sorting machine (4) are provided below the discharge outlet with a material returning assembly (5), the material returning assembly (5) is fixed on the support frame (6); the material returning assembly (5) is connected with the lower inside feed inlet of the feeding assembly (1), the feeding assembly (1) is fixed on the support frame; the feeding assembly (1) is connected with the shellers head (2).

2. The nut sheller of claim 1, wherein: The skin seed kernel sorting machine (3) is provided below with a seed kernel sorting machine (4), the seed kernel sorting machine (4) is connected in the support frame (6) through a vibrating spring.

3. The nut sheller of claim 2, wherein: The skin seed kernel sorting machine (3) is provided at one end away from the shellers head with a cyclone separator (71), the cyclone separator (71) is connected with a fan (7), the cyclone separator (71) end cover is arranged above the skin seed kernel sorting machine (3), the other end is communicated with the fan (7), the fan (7) is erected on the support frame (6).

4. The nut sheller of claim 2, wherein: The skin seed kernel sorting machine (3), the seed kernel sorting machine (4) are provided below the discharge outlet with a material returning assembly (5), the material returning assembly (5) is fixedly connected in the support frame (6), the material returning assembly (5) is connected with the lower inside feed inlet of the feeding assembly (1), the feeding assembly (1) is fixed on the support frame (6), the feeding assembly (1) is connected with the shellers head (2).