Drum-type chestnut shell and kernel separator

By designing a drum-type chestnut shell and kernel separator, the machine utilizes wind power and mechanical friction to achieve complete separation of kernels and peels, solving the problems of low labor efficiency and high cost of existing chestnut shell and kernel separators. This improves the peeling rate and finished product rate, reduces the broken kernel rate, and is suitable for large-scale factory production.

CN224140090UActive Publication Date: 2026-04-21QINHUANGDAO FUCI FOOD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINHUANGDAO FUCI FOOD
Filing Date
2025-05-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing chestnut shell and kernel separators mostly rely on manual or mechanical slitting before roasting or baking. Even after high-temperature treatment, manual peeling is still required, resulting in low labor efficiency, high labor costs, high kernel breakage rate during manual peeling, low finished product yield, high overall processing costs, and poor product market competitiveness.

Method used

A drum-type chestnut shell and kernel separator is designed. By setting up a drum structure, drive shaft, movable plate, flexible rubber plate, baffle and fan, the kernel and peel are completely separated by wind power and mechanical friction. Combined with inclined baffle and double-layer peel collection component, the peeling rate is improved and the kernel breakage rate is reduced.

Benefits of technology

It significantly increases the peeling rate of chestnuts to over 70%, reduces the broken kernel rate, increases the yield of whole kernels in finished products by over 5%, reduces the amount of manual labor, lowers labor and overall processing costs, improves production efficiency and product market competitiveness, and is suitable for large-scale factory production.

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Abstract

The utility model discloses a drum-type chestnut shell and kernel separator, which belongs to the technical field of chestnut shell and kernel separators, and adopts the technical scheme that the drum-type chestnut shell and kernel separator comprises a drum structure, a transmission shaft is arranged on the inner wall of the drum structure, a movable plate is bolted to the surface of the transmission shaft, and a flexible rubber plate is fixedly connected to the surface of the movable plate; a baffle is arranged on the inner wall of the roller structure, a draught fan is arranged on the left side of the roller structure, and the problems that when an existing chestnut shell and kernel separator is used, frying or baking is conducted after manual or mechanical cutting is mostly adopted, manual peeling is still needed after high-temperature treatment, the labor efficiency is low, and the labor cost is high are solved; and the problems of low finished product yield, high comprehensive processing cost and poor product market competitiveness caused by high kernel breakage rate in the manual peeling process are solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of chestnut shell and kernel separators, and in particular to a drum-type chestnut shell and kernel separator. Background Technology

[0002] A chestnut shell and kernel separator is a specialized processing equipment designed for the characteristics of chestnuts. It separates the chestnut shell from the kernel through mechanical force and is suitable for industrial or large-scale production of chestnut shelling. Currently, the common method for peeling nuts (mainly chestnuts) is to make slits manually or mechanically and then roast or bake them. After roasting or traditional roasting at high temperatures, the shell expands due to the heat and cracks at a certain width at the slits. The shell still covers the kernel, which is then peeled manually to remove the kernel.

[0003] It has the disadvantages of making it difficult to grade walnuts by size when feeding them, making it difficult to break them properly when the gaps between the walnut shells and kernels are different, and making it difficult to separate the shell and kernel mixture after breaking the shell.

[0004] Existing patent (publication number: CN220425478U) discloses a variable gap drum screen for walnut shells and kernels. This variable gap drum screen includes a feeding plate, connecting baffle, diversion trough, grading beam, leg tubes, shelling beam, diversion trough, shelling shaft seat plate, screening shaft seat plate, discharge plate, and mixture screening plate. The screen also includes a grading mechanism, a shell-breaking mechanism, and a screening mechanism. This invention, by setting up a grading mechanism, a variable gap shell-breaking mechanism, and a screening mechanism, can sort and break walnuts of different sizes. For varieties with different shell-kernel distances, the best crushing effect can be achieved by adjusting the extrusion plate. The crushed shell-kernel mixture can be separated from the kernel by segmented drums. The sorting speed and shell-breaking speed are adjustable. Test crushing and sorting are controllable. This effectively improves the speed of sorting, shell-breaking, and screening, reduces labor intensity, and increases work efficiency.

[0005] To address the aforementioned issues, existing patents offer solutions. However, most existing chestnut shell and kernel separators require manual or mechanical slitting followed by roasting or baking. Even after high-temperature treatment, manual peeling is still necessary, resulting in low labor efficiency and high labor costs. Furthermore, the high rate of kernel breakage during manual peeling leads to a low yield of finished products, high overall processing costs, and poor market competitiveness.

[0006] To address this, a drum-type chestnut shell and kernel separator is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a drum-type chestnut shell and kernel separator, which can solve the problems of existing chestnut shell and kernel separators, which mostly rely on manual or mechanical slicing and then roasting or baking. After high-temperature treatment, manual peeling is still required, resulting in low labor efficiency, high labor costs, and a high rate of kernel breakage during manual peeling, leading to low finished product yield, high overall processing costs, and poor product market competitiveness.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a drum-type chestnut shell and kernel separator, comprising a drum structure, a drive shaft provided on the inner wall of the drum structure, a movable plate bolted to the surface of the drive shaft, a flexible rubber plate fixedly connected to the surface of the movable plate, a baffle provided on the inner wall of the drum structure, and a fan provided on the left side of the drum structure.

[0009] Preferably, a double-layer peel collecting assembly is provided at the bottom of the roller structure, and a nut collecting assembly is bolted to the left side of the double-layer peel collecting assembly.

[0010] Preferably, a roller positioning plate is bolted to the surface of the roller structure, and a transmission sprocket is provided on the surface of the roller structure.

[0011] Preferably, the inner wall of the roller structure is provided with a spiral guide plate, and the right side of the roller structure is provided with an inlet hopper.

[0012] Preferably, a rolling frame is bolted to the surface of the roller structure, and a mounting plate is provided at the bottom of the rolling frame.

[0013] Preferably, a mounting bracket is bolted to the top of the mounting plate, and a rolling assembly is rotatably connected to the inner wall of the mounting bracket, with the top of the rolling assembly contacting the bottom of the rolling bracket.

[0014] Preferably, the nut collecting component is arc-shaped, and the inner wall of the nut collecting component is provided with a collecting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application utilizes a drum structure, drive shaft, movable plate, flexible rubber plate, baffle, and fan. The drive shaft on the inner wall of the drum structure drives the flexible rubber plate to rotate via the bolted movable plate. This, in conjunction with the baffle, allows for repeated friction and kneading of the chestnuts. Combined with the inclined angle of the baffle inside the drum structure, it achieves thorough separation of the kernel and peel. The fan on the left side of the drum structure utilizes the weight difference between the kernel and peel to blow the peel towards the corresponding structure using airflow. This separator can significantly increase the chestnut peeling rate to over 70%, reduce the broken kernel rate, and increase the yield of whole kernels by over 5%. It reduces the amount of manual labor required, lowers labor and overall processing costs, improves production efficiency and product market competitiveness, and is suitable for large-scale factory production. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the drum-type chestnut shell and kernel separator of this utility model;

[0018] Figure 2 This is a structural diagram of the nut collecting component of this utility model;

[0019] Figure 3 This is a structural diagram of the rolling frame of this utility model;

[0020] Figure 4 This is a structural diagram of the double-layer leather collection assembly of this utility model;

[0021] Figure 5 This is a structural diagram of the flexible adhesive sheet of this utility model.

[0022] In the diagram, 1. Roller structure; 2. Drive shaft; 3. Movable plate; 4. Flexible rubber sheet; 5. Baffle; 6. Fan; 7. Double-layer skin collection assembly; 8. Nut collection assembly; 9. Roller positioning plate; 10. Drive sprocket; 11. Spiral guide plate; 12. Inlet hopper; 13. Rolling frame; 14. Mounting plate; 15. Mounting frame; 16. Rolling assembly; 17. Collection trough. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A drum-type chestnut shell and kernel separator includes a drum structure 1, a drive shaft 2 is provided on the inner wall of the drum structure 1, a movable plate 3 is bolted to the surface of the drive shaft 2, a flexible rubber plate 4 is fixedly connected to the surface of the movable plate 3, a baffle 5 is provided on the inner wall of the drum structure 1, and a fan 6 is provided on the left side of the drum structure 1.

[0026] In this embodiment: by setting up a drum structure 1, a drive shaft 2, a movable plate 3, a flexible rubber plate 4, a baffle 5, and a fan 6, the drive shaft 2 on the inner wall of the drum structure 1 drives the flexible rubber plate 4 to rotate through the movable plate 3, which can cooperate with the baffle 5 to rub and knead the chestnuts multiple times. Combined with the tilt angle of the baffle 5 inside the drum structure 1, the kernel and peel can be fully and thoroughly separated. The fan 6 set on the left side of the drum structure 1 can take advantage of the mass difference between the kernel and peel to blow the peel towards the corresponding structure by wind power. This separator can significantly increase the chestnut peeling rate to over 70%, reduce the broken kernel rate, increase the yield of whole kernels in the finished product by over 5%, reduce the amount of manual labor, reduce labor and overall processing costs, improve production efficiency and product market competitiveness, and is suitable for large-scale factory production.

[0027] Specifically, such as Figure 2 As shown, a double-layer skin collection component 7 is provided at the bottom of the roller structure 1, and a nut collection component 8 is bolted to the left side of the double-layer skin collection component 7.

[0028] Specifically, such as Figure 2 , Figure 3 As shown, a roller positioning plate 9 is bolted to the surface of the roller structure 1, and a transmission sprocket 10 is provided on the surface of the roller structure 1.

[0029] Specifically, such as Figure 2 As shown, the inner wall of the roller structure 1 is provided with a spiral guide plate 11, and the right side of the roller structure 1 is provided with an inlet hopper 12.

[0030] In this embodiment: by setting up a double-layer peel collection component 7, and by setting two layers that are tilted outward at about 30 degrees and have different screen diameters (the inner 1cm screen can block the peel and let it fall freely, and the outer 1mm screen can block the peel fuzz and allow wind to pass through), the peel and fuzz can be completely separated and collected. The kernel collection component 8, which is bolted to the left side, works in conjunction with the double-layer peel collection component 7. By utilizing the mass difference between the kernel and the peel, the peel is blown towards the double-layer peel collection component 7 by wind, and the kernel falls straight down to the left kernel collection component 8, so as to achieve separate collection of the shell and kernel, improve separation efficiency and purity. The roller positioning plate 9 on the surface of the roller structure 1 can ensure the stable installation and rotation positioning of the roller structure 1. In conjunction with the transmission sprocket 10, it can ensure the smooth and continuous rotation of the roller. The spiral guide plate 11 on the inner wall can rub and slightly impact the open chestnut to achieve partial shell and kernel separation, and push the material towards the outlet end through the spiral guide. The right inlet hopper 12 facilitates the orderly entry of chestnuts into the roller structure 1.

[0031] Specifically, such as Figure 3 As shown, a rolling frame 13 is bolted to the surface of the roller structure 1, and a mounting plate 14 is provided at the bottom of the rolling frame 13.

[0032] Specifically, such as Figure 3 As shown, a mounting bracket 15 is bolted to the top of the mounting plate 14, and a rolling assembly 16 is rotatably connected to the inner wall of the mounting bracket 15. The top of the rolling assembly 16 contacts the bottom of the rolling frame 13.

[0033] In this embodiment, the rolling frame 13 bolted to the surface of the roller structure 1 cooperates with the bottom mounting plate 14, mounting frame 15 and rolling assembly 16 to form a stable support and rolling guide structure, which can reduce the shaking and wear of the roller structure 1 when it rotates, ensure the stability and reliability of the roller structure 1, extend the service life of the roller structure 1, and at the same time ensure the continuous and stable progress of the shell-core separation process.

[0034] Specifically, such as Figure 4 As shown, the nut collecting component 8 is arc-shaped, and the inner wall of the nut collecting component 8 is provided with a collecting groove 17.

[0035] In this embodiment, the nut collecting component 8 is arranged in an arc shape and a collecting groove 17 is provided on the inner wall. The arc structure can buffer the impact force when the nuts fall and reduce damage to the nuts. The collecting groove 17 facilitates the centralized collection of nuts, further reducing the broken nut rate and improving the convenience and integrity of nut collection.

[0036] Working principle: During the use of the drum structure 1, by setting up the drum structure 1, drive shaft 2, movable plate 3, flexible rubber plate 4, baffle 5, and fan 6, the drive shaft 2 on the inner wall of the drum structure 1 drives the flexible rubber plate 4 to rotate through the movable plate 3, which can cooperate with the baffle 5 to rub and knead the chestnuts multiple times. Combined with the inclination angle of the baffle 5 inside the drum structure 1, the kernel and peel can be fully and thoroughly separated. The fan 6 set on the left side of the drum structure 1 can take advantage of the mass difference between the kernel and peel, and use wind power to separate them. The peel is blown towards the double-layer peel collection component 7, and the kernel falls straight down for collection. The arc-shaped kernel collection component 8 can buffer the impact and reduce kernel damage. The double-layer peel collection component 7 with angled inclination and different screen diameters can ensure effective separation and collection of peel and fuzz. This separator can significantly increase the peeling rate of chestnuts to over 70%, reduce the broken kernel rate, increase the yield of whole kernels in the finished product by over 5%, reduce the amount of manual labor, reduce labor and overall processing costs, improve production efficiency and product market competitiveness, and is suitable for large-scale factory production.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drum-type Chinese chestnut shell and kernel separator comprising a drum structure (1), characterized in that: The inner wall of the roller structure (1) is provided with a drive shaft (2), the surface of the drive shaft (2) is bolted with a movable plate (3), the surface of the movable plate (3) is fixedly connected with a flexible rubber plate (4), the inner wall of the roller structure (1) is provided with a baffle (5), and a fan (6) is provided on the left side of the roller structure (1).

2. A drum-type chestnut shell and kernel separator according to claim 1, characterized in that: The bottom of the roller structure (1) is provided with a double-layer skin collection assembly (7), and a nut collection assembly (8) is attached to the left side of the double-layer skin collection assembly (7).

3. A drum-type chestnut shell and kernel separator according to claim 1, characterized in that: A roller positioning plate (9) is bolted to the surface of the roller structure (1), and a transmission sprocket (10) is provided on the surface of the roller structure (1).

4. A drum-type chestnut shell and kernel separator according to claim 1, characterized in that: The inner wall of the roller structure (1) is provided with a spiral guide plate (11), and the right side of the roller structure (1) is provided with an inlet hopper (12).

5. A drum-type chestnut shell and kernel separator according to claim 1, characterized in that: The surface of the roller structure (1) is bolted with a rolling frame (13), and the bottom of the rolling frame (13) is provided with a mounting plate (14).

6. A drum-type chestnut shell and kernel separator according to claim 5, characterized in that: The top of the mounting plate (14) is bolted with a mounting bracket (15), and the inner wall of the mounting bracket (15) is rotatably connected with a rolling assembly (16), the top of the rolling assembly (16) being in contact with the bottom of the rolling frame (13).

7. A drum-type chestnut shell and kernel separator according to claim 2, characterized in that: The nut collecting component (8) is arc-shaped, and the inner wall of the nut collecting component (8) is provided with a collecting groove (17).

Citation Information

Patent Citations

  • Clearance-variable drum-type screening machine

    CN220425478U