A nut shelling apparatus
By introducing screening and collection devices into the nut shelling device, the problem of uneven nut shelling in the existing technology is solved, and the shelling and collection based on particle size is realized, thereby improving the quality consistency of nut products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINCANG YINGKAI TECHNOLOGY CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-19
AI Technical Summary
Existing nut-cracking devices struggle to simultaneously ensure the integrity of larger nuts and the complete cracking of smaller nuts when processing nuts of varying sizes, resulting in inconsistent product quality and negatively impacting the consumer experience.
A nut shelling device was designed, comprising a sieving device, a shelling device, and a collecting device. The sieving device grades and sieves nuts according to their particle size, the shelling device uses a shelling roller and an extrusion wall to shell the nuts, and the collecting device separates and collects the kernels and shells.
It enables personalized shelling processing based on nut size, ensuring the integrity of the kernels, and improves product quality consistency through graded collection.
Smart Images

Figure CN224368998U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of shell-breaking devices, specifically relating to a nut shell-breaking device. Background Technology
[0002] In modern society, nuts are gaining popularity due to their rich nutritional content and delicious taste. However, nuts have a hard outer shell, making them difficult for consumers to eat directly. They generally need to be cracked open at processing plants to make them easier for consumers to consume.
[0003] In existing technology, nuts are uniformly placed into a shelling device for processing. However, when processing nuts of different sizes, larger nuts are easily damaged along with their shells during the shelling process. If the diameter of the shelling device is adjusted, smaller nuts are difficult to shell completely, which affects the final product quality and reduces the consumer experience. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a nut-cracking device.
[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:
[0006] A nut shelling device includes a frame, a sieving device, a shelling device, and a collecting device; the sieving device is installed above the frame, the shelling device is installed on the frame, the inlet of the shelling device is located below the sieving device, and the collecting device is installed at the bottom of the frame, with the inlet of the collecting device located at the bottom of the shelling device.
[0007] Furthermore, the screening device includes a feed hopper, a screening cage, and a rotating roller. The feed hopper is installed on the top of the frame. The screening cage is funnel-shaped with screening grooves on its side. The side of the screening cage with the smaller opening is connected to the outlet of the feed hopper. The rotating roller is mounted on the frame and is coaxially installed with the screening cage via a bracket.
[0008] Furthermore, the shell-breaking device includes a diversion hopper, a shell-breaking roller shaft, and an extrusion wall. The diversion hopper is connected below the screening cage, and the shell-breaking roller shaft is installed at the bottom outlet of the diversion hopper. The arc surface of the extrusion wall is coaxially installed with the shell-breaking roller shaft, and shell-breaking teeth are provided on the arc surface. A converging baffle is provided at the bottom of the extrusion wall.
[0009] Furthermore, the collection device includes a diversion screen plate, an air duct, and a collection tank. The diversion screen plate is located below the converging baffle, the air outlet of the air duct is located below the diversion screen plate, and the collection tank is placed at the bottom of the diversion screen plate.
[0010] Furthermore, a hammer is provided on the shell-breaking roller shaft, and a cleaning brush is installed in the hammer.
[0011] Furthermore, the shell-breaking roller and the extrusion wall are equipped with diversion walls according to the screening grade of the screening cage.
[0012] According to the above technical solution, the beneficial effects of this utility model are as follows: This utility model sets a diversion device before and after the nut cell wall breaking, so that the nuts are broken and collected according to different particle sizes, so that the cell wall breaking device has uniform cell wall breaking parameter settings when breaking the nuts, ensuring the integrity of the kernels, and collecting them according to different kernel sizes after cell wall breaking, which facilitates the subsequent grading of nuts. Attached Figure Description
[0013] Figure 1 A schematic diagram of the overall structure of the nut-cracking device;
[0014] Figure 2 A schematic diagram of the internal structure of a nut-cracking device;
[0015] 1-Frame; 2-Screening device; 21-Feed hopper; 22-Screening cage; 23-Rotating roller; 3-Shell breaking device; 31-Diverting hopper; 32-Shell breaking roller shaft; 321-Hammer; 322-Cleaning brush; 33-Extrusion wall; 4-Collection device; 41-Diverting screen plate; 42-Air duct; 43-Collection tank. Detailed Implementation
[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments.
[0017] See Figure 1-2 A nut shelling device includes a frame 1, a sieving device 2, a shelling device 3, and a collecting device 4. The sieving device 2 is installed above the frame 1, and the shelling device 3 is installed on the frame 1 with its inlet located below the sieving device 2. The collecting device 4 is installed at the bottom of the frame 1 with its inlet located at the bottom of the shelling device 3. The sieving device 2 separates nuts according to their different particle sizes. After sieving, the nuts fall into the shelling device 3 below. After being shelled according to their different particle sizes, the collecting device 4 collects the nuts of different sizes.
[0018] See Figure 1-2 The screening device 2 includes a feed hopper 21, a screening cage 22, and a rotating roller 23. The feed hopper 21 is installed on the top of the frame 1. The screening cage 22 is a funnel shape with screening grooves on the side. The side of the screening cage 22 with the smaller opening is connected to the outlet of the feed hopper 21. The rotating roller 23 is mounted on the frame 1 and is coaxially installed with the screening cage 22 through a bracket. The feed hopper 21 feeds nuts into the screening cage 22. The screening cage 22 screens the nuts according to their particle size. The rotating roller 23 drives the screening cage 22 to rotate and screen the nuts.
[0019] See Figure 1-2 The shell-breaking device 3 includes a diversion hopper 31, a shell-breaking roller 32, and an extrusion wall 33. The diversion hopper 31 is connected below the screening cage 22. The shell-breaking roller 32 is installed at the bottom outlet of the diversion hopper 31. The arc surface of the extrusion wall 33 is coaxially installed with the shell-breaking roller 32. The arc surface is provided with shell-breaking teeth. The bottom of the extrusion wall 33 is provided with a converging baffle 34. The diversion hopper 31 diverts the nuts screened according to their particle size into the shell-breaking roller 32 below. The shell-breaking roller 32 rotates and cooperates with the extrusion wall 33 to break the shells of the nuts. The broken nuts are collected by the converging baffle 34 and enter the collection device below.
[0020] See Figure 1-2 The collecting device 4 includes a diversion sieve plate 41, an air duct 42, and a collecting trough 43. The diversion sieve plate 41 is located below the converging baffle 34, the air outlet of the air duct 42 is located below the diversion sieve plate 41, and the collecting trough 43 is placed at the bottom of the diversion sieve plate 41. After the shelled nuts pass through the diversion sieve plate 41, they fall downwards. The air duct 42 blows the shells away, and the kernels fall downwards into the collecting trough 43.
[0021] See Figure 1-2 The shell-breaking roller 32 is equipped with a hammer 321, and a cleaning brush 322 is installed in the hammer 321. The hammer 321 squeezes the nuts onto the extrusion wall 33 to break the walls, and the cleaning brush 322 cleans the nuts stuck on the extrusion wall 33 and makes them fall below.
[0022] See Figure 1-2 The shell-breaking roller 32 and the extrusion wall 33 are equipped with a diversion wall 35 according to the screening grade of the screening cage 22. The diversion wall 35 prevents the nuts screened by the screening cage 22 from being mixed again.
[0023] According to the above embodiments, the working process of this utility model is as follows:
[0024] Nuts are fed into the screening cage 22 of the screening device 2 through the feed hopper 21. The screening cage 22 has screening grooves on its side, which are funnel-shaped, with the smaller opening connected to the outlet of the feed hopper 21. The rotating roller 23 drives the screening cage 22 to rotate, separating the nuts according to different particle sizes. The sieved nuts fall into the shelling device 3 below. In the shelling device 3, the diversion hopper 31 collects the nuts falling from the screening cage 22 and diverts them into the shelling roller 32. A diversion wall 35 is provided between the shelling roller 32 and the extrusion wall 33 according to the screening grade of the screening cage 22 to prevent the sieved nuts from mixing again. A hammer 321 is provided on the shelling roller 32, and a cleaning brush 322 is also installed in the hammer 321. As the shelling roller 32 rotates, it cooperates with the extrusion wall 33 to crush the nuts. The extrusion wall 33 has shelling teeth on its curved surface and a converging baffle 34 at its bottom. The cracked nuts are collected by the confluence baffle 34 and enter the collection device 4 below. In the collection device 4, the cracked nuts fall downwards after passing through the diversion sieve 41. The air outlet of the air duct 42 is located below the diversion sieve 41, blowing away the shells, while the kernels fall downwards into the collection trough 43.
[0025] The above-disclosed embodiments of the present invention are only for illustrating the present invention. The preferred embodiments do not describe all details exhaustively, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A nut-cracking device, characterized in that: Includes frame (1), screening device (2), shell breaking device (3), and collection device (4); The screening device (2) is installed above the frame (1), the shell breaking device (3) is installed on the frame (1), the inlet of the shell breaking device (3) is located below the screening device (2), the collecting device (4) is installed at the bottom of the frame (1), and the inlet of the collecting device (4) is located at the bottom of the shell breaking device (3).
2. The nut-cracking device according to claim 1, characterized in that: The screening device (2) includes a feed hopper (21), a screening cage (22), and a rotating roller (23). The feed hopper (21) is installed on the top of the frame (1). The screening cage (22) is a funnel-shaped structure with screening grooves on the side. The side with the smaller opening of the screening cage (22) is connected to the outlet of the feed hopper (21). The rotating roller (23) is mounted on the frame (1) and is coaxially installed with the screening cage (22) through a bracket.
3. The nut-cracking device according to claim 1, characterized in that: The shell-breaking device (3) includes a diversion hopper (31), a shell-breaking roller (32), and a squeezing wall (33). The diversion hopper (31) is connected below the screening cage (22). The shell-breaking roller (32) is set at the bottom outlet of the diversion hopper (31). The arc surface of the squeezing wall (33) is coaxially installed with the shell-breaking roller (32). Shell-breaking teeth are set on the arc surface. A converging baffle (34) is set at the bottom of the squeezing wall (33).
4. The nut-cracking device according to claim 1, characterized in that: The collection device (4) includes a diversion screen plate (41), an air duct (42), and a collection trough (43). The diversion screen plate (41) is located below the confluence baffle (34), the air outlet of the air duct (42) is located below the diversion screen plate (41), and the collection trough (43) is placed at the bottom of the diversion screen plate (41).
5. The nut-cracking device according to claim 3, characterized in that: A hammer (321) is provided on the shell-breaking roller (32), and a cleaning brush (322) is provided in the hammer (321).
6. The nut-cracking device according to claim 3, characterized in that: The shell-breaking roller (32) and the extrusion wall (33) are provided with a diversion wall (35) according to the screening grade of the screening cage (22).