Macadamia nut opening machine

By introducing quantitative feeding and screening components into the macadamia nut opening machine, the problems of unstable feeding and insufficient precision of manual adjustment in traditional opening machines have been solved, achieving stability and consistency in macadamia nut opening and improving production efficiency and product quality.

CN224179082UActive Publication Date: 2026-05-01GUANGDONG GUOYUAN AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG GUOYUAN AGRICULTURAL TECHNOLOGY CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional macadamia nut opening machines suffer from unstable feeding, leading to equipment blockage or idling. Manual adjustment of the feeding amount is difficult to control precisely, affecting processing efficiency and product quality consistency.

Method used

It employs a quantitative feeding component and a screening component, including a feeding box controlled by an electric push rod and a replaceable screening plate, to ensure accurate feeding and consistent fruit size each time. Combined with a motor-driven cutting system, it achieves efficient opening.

Benefits of technology

This has achieved stability and consistency in the macadamia nut opening process, improved production efficiency and product quality, reduced equipment failures, and enhanced the equipment's versatility and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of food processing machinery, and discloses a macadamia nut opening machine which comprises a shell, an opening assembly is arranged in the shell, a supporting box is fixedly connected to the upper surface of the shell, a quantitative discharging assembly is arranged on the inner wall of the supporting box, a screening assembly is arranged above the supporting box, and a feeding assembly is arranged above the screening assembly. The quantitative discharging assembly comprises a feeding hopper, the outer wall of the feeding hopper is fixedly connected to the inner wall of a supporting box, the outer wall of the supporting box is fixedly connected with a second protection box, the inner wall of the second protection box is fixedly connected with an electric push rod, the output end of the electric push rod is fixedly connected with a discharging box, and the inner wall of the discharging box is slidably connected with a first sliding column. The outer wall of the first sliding column is slidably connected with a sealing block. According to the quantitative feeding device, precise quantitative feeding is achieved, and the feeding amount of each time is strictly controlled. The tapping machine is stable in working rhythm and smooth in procedure connection, it is guaranteed that all fruits are subjected to tapping treatment consistently, and the product quality consistency and the production benefits are improved.
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Description

Technical Field

[0001] This utility model relates to the field of food processing machinery technology, and in particular to a macadamia nut opening machine. Background Technology

[0002] In the macadamia nut processing industry, the macadamia nut opening machine is a key piece of equipment for achieving efficient and precise opening, and its performance directly affects processing efficiency and product quality. With the increasing market demand for macadamia nut processing, the call for technological innovation in opening machines is growing stronger.

[0003] Traditional macadamia nut opening machines typically employ a simple gravity-feeding and coarse-grained cutting structure. Gravity-feeding relies on the tilt of the hopper to allow the nuts to roll naturally into the cutting area. The cutting process is usually driven by a single blade driven by a motor, with the cutting depth and force adjusted manually based on experience. While this mechanical structure and technical principle can accomplish basic opening operations, it has many limitations.

[0004] However, these traditional fruit-opening machines have revealed inconsistencies in feeding during practical applications. Relying solely on gravity for feeding makes it difficult to precisely control the amount of fruit fed each time. Feeding too much fruit causes a large influx into the cutting area, easily leading to blockages inside the equipment. This not only affects the normal opening process for subsequent fruits but may also cause equipment failure due to mechanical overload. Feeding too little fruit causes the cutting device to frequently idle, wasting energy and significantly reducing production efficiency. Furthermore, manually adjusting the feeding amount based on experience makes it difficult to ensure consistent feeding accuracy for each batch, resulting in inconsistent product quality and hindering the large-scale and standardized development of the macadamia nut processing industry. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a macadamia nut opening machine, which aims to improve the problems of unstable feeding in traditional opening machines, excessive feeding causing accumulation that affects opening, insufficient feeding causing the equipment to idle, and difficulty in controlling the accuracy of manual feeding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a macadamia nut opening machine, comprising a housing, an opening assembly disposed inside the housing, a support box fixedly connected to the upper surface of the housing, a quantitative feeding assembly disposed on the inner wall of the support box, and a screening assembly disposed above the support box;

[0007] The quantitative feeding assembly includes a feeding hopper, the outer wall of which is fixedly connected to the inner wall of a support box. A second protective box is fixedly connected to the outer wall of the support box. An electric push rod is fixedly connected to the inner wall of the second protective box. A feeding box is fixedly connected to the output end of the electric push rod. A first sliding column is slidably connected to the inner wall of the feeding box. A closing block is slidably connected to the outer wall of the first sliding column. A spring is sleeved on one end of the first sliding column.

[0008] Furthermore, the screening component includes a screening plate, which is disposed above the support box. A release groove is provided on one side of the outer wall of the screening plate. A fixing box is fixedly connected to the upper surface of the support box. A sliding column II is fixedly connected to the inner wall of the fixing box. A spring II is sleeved on one end of the sliding column II. A slider is slidably connected to the outer wall of the spring II. A pressing block is fixedly connected to the upper surface of the slider. A fixing post is fixedly connected to one side of the outer wall of the slider.

[0009] Furthermore, the opening assembly includes a cutting blade disposed inside the housing. A hopper is fixedly connected to the upper side of the housing, and a guide plate is fixedly connected to the lower side of the outer wall of the hopper. A protective cover is fixedly connected to one side of the outer wall of the housing, and a motor is fixedly connected to the inner wall of the protective cover. A transmission shaft is fixedly connected to the output end of the motor. A transmission shaft is also disposed on one side of the outer wall of the housing, and a transmission belt is connected between the transmission shaft and the transmission shaft. A cleaning roller is fixedly connected to the inner wall of the transmission shaft, and a distributing roller is fixedly connected to the inner wall of the transmission shaft. An electric slide rail is disposed in the middle of the housing, and a moving plate is slidably connected to the outer wall of the electric slide rail. A cylinder is fixedly connected to the upper surface of the moving plate, and an opening box is fixedly connected to the output end of the cylinder. An electric slide rail is disposed on the lower side of the housing, and a lifting plate is slidably connected to the outer wall of the electric slide rail. The cutting blade is disposed on the upper surface of the lifting plate.

[0010] Furthermore, the outer wall of the fixing column is slidably connected inside the release groove, and the fixing column is used to limit the position of the screening plate.

[0011] Furthermore, one end of the second spring is fixedly connected to one side of the outer wall of the slider, and the second spring is used to push the slider to move.

[0012] Furthermore, one end of the spring is fixedly connected to one side of the outer wall of the closed block, and the spring is used to push the closed block to move.

[0013] Furthermore, the upper surface of the sealing block is slidably connected to the lower surface of the feed hopper, and the sealing block is used to close the feed hopper.

[0014] Furthermore, the upper surface of the feeding box is slidably connected to the lower surface of the feeding hopper, and the feeding box is used to open the feeding hopper.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this invention, in the initial state, the closing block closes the feeding hopper under the action of a spring. When feeding is required, the electric push rod pushes the feeding box to slide, opening the feeding hopper, and a measured amount of macadamia nuts falls into the feeding box, completing the feeding action. This solves the problems of unstable feeding in traditional fruit opening machines, excessive feeding causing accumulation and affecting opening, and insufficient feeding causing the equipment to idle, as well as the difficulty in controlling the accuracy of manual feeding. It achieves precise quantitative feeding and strict control of the feeding amount each time. This ensures a stable working rhythm and smooth process connection of the fruit opening machine, guarantees consistent opening treatment for each fruit, and improves product quality consistency and production efficiency.

[0017] 2. In this utility model, macadamia nuts are placed on a screening plate for screening. When replacing the screening plate, the squeezing block is pulled to drive the fixed column out of the release groove to remove the old plate. The reverse operation can be used to install a new plate. This allows for the replacement of screening plates of different specifications according to the actual size of the macadamia nuts, ensuring that the size of the fruits entering the opening machine is relatively consistent. This helps to improve the opening effect and product quality, and enhances the versatility of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a macadamia nut opening machine proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of a portion of the protective cover of a macadamia nut opening machine proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the material distribution roller section of a macadamia nut opening machine proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the cutting blade part of a macadamia nut opening machine proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of a portion of the sliding column structure of a macadamia nut opening machine proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the two-part spring structure of a macadamia nut opening machine proposed in this utility model.

[0024] Legend:

[0025] 1. Outer shell; 2. Protective cover one; 3. Support box; 4. Screening plate; 5. Release groove; 6. Fixing box; 7. Motor; 8. Drive shaft one; 9. Drive shaft two; 10. Drive belt; 11. Feed hopper; 12. Guide plate; 13. Cleaning roller; 14. Distributing roller; 15. Opening box; 16. Cylinder; 17. Electric slide rail one; 18. Moving plate; 19. Lifting plate; 20. Electric slide rail two; 21. Cutting blade; 22. Protective box two; 23. Electric push rod; 24. Sliding column one; 25. Spring one; 26. Feed box; 27. Sealing block; 28. Feed hopper; 29. ​​Fixing column; 30. Extrusion block; 31. Sliding column two; 32. Spring two; 33. Sliding block. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1 and Figure 5 The present invention provides an embodiment of a macadamia nut opening machine, comprising a housing 1, an opening component inside the housing 1 for opening macadamia nuts, a support box 3 fixedly connected to the upper surface of the housing 1, a quantitative feeding component on the inner wall of the support box 3 for quantitative feeding to prevent clogging, and a screening component above the support box 3 to ensure that the macadamia nuts are of uniform size.

[0028] The quantitative feeding assembly includes a feeding hopper 28, the outer wall of which is fixedly connected to the inner wall of the support box 3. A second protective box 22 is fixedly connected to the outer wall of the support box 3. An electric push rod 23 is fixedly connected to the inner wall of the second protective box 22. A feeding box 26 is fixedly connected to the output end of the electric push rod 23. A sliding column 24 is slidably connected to the inner wall of the feeding box 26. A closing block 27 is slidably connected to the outer wall of the sliding column 24. A spring 25 is sleeved on one end of the sliding column 24.

[0029] Specifically, in the initial state, the closing block 27 is located below the feed hopper 28 and closed by the action of spring 25. When feeding is required, the electric push rod 23 pushes the feeding box 26, which moves below the feed hopper 28 and opens it. At the same time, it pushes the closing block 27 to slide along the slide column 24 against the force of spring 25, and a fixed amount of macadamia nuts fall into the feeding box 26.

[0030] Reference Figure 1 - Figure 6The screening assembly includes a screening plate 4, which is positioned above the support box 3. A release groove 5 is provided on one side of the outer wall of the screening plate 4. A fixing box 6 is fixedly connected to the upper surface of the support box 3. A sliding column 31 is fixedly connected to the inner wall of the fixing box 6. A spring 32 is fitted onto one end of the sliding column 31. A slider 33 is slidably connected to the outer wall of the spring 32. A pressing block 30 is fixedly connected to the upper surface of the slider 33. A fixing post 29 is fixedly connected to one side of the outer wall of the slider 33. The opening assembly includes a cutting blade 21. The casing 1 is located inside the outer shell 1. A hopper 11 is fixedly connected to the upper side of the inner side of the casing 1. A guide plate 12 is fixedly connected to the lower side of the outer wall of the hopper 11. A protective cover 2 is fixedly connected to one side of the outer wall of the casing 1. A motor 7 is fixedly connected to the inner wall of the protective cover 2. A drive shaft 9 is fixedly connected to the output end of the motor 7. A drive shaft 8 is located on one side of the outer wall of the casing 1. A drive belt 10 connects the drive shaft 8 and the drive shaft 9. A cleaning roller 13 is fixedly connected to the inner wall of the drive shaft 8. A material distribution roller 14 is fixedly connected. An electric slide rail 17 is installed inside the middle of the outer casing 1. A moving plate 18 is slidably connected to the outer wall of the electric slide rail 17. A cylinder 16 is fixedly connected to the upper surface of the moving plate 18. An open box 15 is fixedly connected to the output end of the cylinder 16. An electric slide rail 20 is installed inside the lower side of the outer casing 1. A lifting plate 19 is slidably connected to the outer wall of the electric slide rail 20. A cutting blade 21 is installed on the upper surface of the lifting plate 19. A fixed column 29 is slidably connected to the outer wall of the release groove 5. 9 is used to limit the screening plate 4. One end of spring 2 32 is fixedly connected to one side of the outer wall of slider 33. Spring 2 32 is used to push slider 33 to move. One end of spring 1 25 is fixedly connected to one side of the outer wall of sealing block 27. Spring 1 25 is used to push sealing block 27 to move. The upper surface of sealing block 27 is slidably connected to the lower surface of feed hopper 28. Sealing block 27 is used to close feed hopper 28. The upper surface of discharge box 26 is slidably connected to the lower surface of feed hopper 28. Discharge box 26 is used to open feed hopper 28.

[0031] Specifically, macadamia nuts are placed on the screening plate 4 above the support box 3 for screening. When replacing the screening plate 4, pulling the squeezing block 30 causes the slider 33 to slide along the sliding post 31 and stretches the spring 32, causing the fixing post 29 to slide inside the screening plate 4. Once the fixing post 29 connects with the release groove 5, the screening plate 4 can be removed. During installation, align the release groove 5 of the screening plate 4 with the fixing post 29 and press it down. The spring 32 retracts, causing the slider 33 to slide, allowing the fixing post 29 to slide laterally on the inner wall of the screening plate 4 to complete the installation. At this time, the motor 7 drives the transmission shaft 9 to rotate, which in turn drives the transmission shaft 8 to rotate through the transmission belt 10, thereby driving the distribution roller 14 and the cleaning roller 13 to operate. The macadamia nuts pass through the feed hopper 28 and the discharge hopper 11, and are evenly distributed by the distribution roller 14 under the guidance of the guide plate 12 and fall into the opening box 15. The cylinder 16 pushes the opening box 15 to move under the cooperation of the electric slide rail 17 and the moving plate 18. The lifting plate 19 where the cutting blade 21 is located rises under the action of the electric slide rail 20 to complete the opening, and then the lifting plate 19 descends.

[0032] Working principle: When a macadamia nut opening machine is needed, the output end of motor 7 drives the second transmission shaft 9 to rotate, which in turn drives the first transmission shaft 8 to rotate via the transmission belt 10. This causes the distributing roller 14 and the cleaning roller 13 to rotate. The macadamia nuts pass through the feeding hopper 28 and the discharge hopper 11, and are evenly distributed by the distributing roller 14 under the action of the guide plate 12. They then fall into the opening box 15. The cylinder 16 drives the opening box 15 to move to the appropriate position with the cooperation of the electric slide rail 17 and the moving plate 18. At the same time, the lifting plate 19 where the cutting blade 21 is located is driven by the electric slide rail 20. The lifting plate 19 rises to open the macadamia nuts. After opening, the lifting plate 19 descends and the macadamia nuts enter the feeding hopper 28. Initially, the closing block 27 is below the feeding hopper 28 under the action of spring 25, closing the feeding hopper 28. When feeding is needed, the electric push rod 23 pushes the feeding box 26 to move. The feeding box 26 slides below the feeding hopper 28, opening the feeding hopper 28. At the same time, the force of the closing block 27 squeezing the spring 25 slides along the sliding column 24, and a fixed amount of macadamia nuts fall into the feeding box 26. The cycle is repeated to complete the fixed feeding action.

[0033] Furthermore, the screening plate 4 is located above the support box 3. When macadamia nuts are placed on the screening plate 4, screening is completed to ensure that the macadamia nuts are of uniform size. When the screening plate 4 needs to be replaced, first pull the squeezing block 30 to slide. The squeezing block 30 drives the slider 33 to slide along the second sliding column 31. While the slider 33 is sliding, the second spring 32 is stretched, which drives the fixed column 29 to slide inside the screening plate 4. When the fixed column 29 is connected to the release groove 5, the screening plate 4 can be removed directly to complete the disassembly. When the screening plate 4 needs to be installed, align the release groove 5 inside the screening plate 4 with the fixed column 29 and press it down. Finally, the contraction of the second spring 32 drives the slider 33 to slide along the second sliding column 31. The slider 33 drives the fixed column 29 to slide laterally on the inner wall of the screening plate 4 to achieve installation. This allows the screening plate 4 to be replaced according to the size of the macadamia nuts.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 macadamia nut opening machine, comprising a housing (1), characterized in that: An opening assembly is provided inside the outer shell (1), a support box (3) is fixedly connected to the upper surface of the outer shell (1), a quantitative feeding assembly is provided on the inner wall of the support box (3), and a screening assembly is provided above the support box (3); The quantitative feeding assembly includes a feeding hopper (28), the outer wall of which is fixedly connected to the inner wall of the support box (3), the outer wall of the support box (3) is fixedly connected to a second protective box (22), the inner wall of the second protective box (22) is fixedly connected to an electric push rod (23), the output end of the electric push rod (23) is fixedly connected to a feeding box (26), the inner wall of the feeding box (26) is slidably connected to a first sliding column (24), the outer wall of the first sliding column (24) is slidably connected to a closing block (27), and one end of the first sliding column (24) is fitted with a first spring (25).

2. The macadamia nut opening machine according to claim 1, characterized in that: The screening assembly includes a screening plate (4), which is positioned above the support box (3). A release groove (5) is provided on one side of the outer wall of the screening plate (4). A fixing box (6) is fixedly connected to the upper surface of the support box (3). A sliding column (31) is fixedly connected to the inner wall of the fixing box (6). A spring (32) is sleeved on one end of the sliding column (31). A slider (33) is slidably connected to the outer wall of the spring (32). A pressing block (30) is fixedly connected to the upper surface of the slider (33). A fixing column (29) is fixedly connected to one side of the outer wall of the slider (33).

3. The macadamia nut opening machine according to claim 1, characterized in that: The opening assembly includes a cutting blade (21), which is disposed inside the outer shell (1). A hopper (11) is fixedly connected to the upper side of the inner shell (1). A guide plate (12) is fixedly connected to the lower side of the outer wall of the hopper (11). A protective cover (2) is fixedly connected to one side of the outer wall of the outer shell (1). A motor (7) is fixedly connected to the inner wall of the protective cover (2). A transmission shaft (9) is fixedly connected to the output end of the motor (7). A transmission shaft (8) is disposed on one side of the outer wall of the outer shell (1). A transmission belt (10) is connected between the transmission shaft (9) and the transmission shaft (8). A cleaning roller (13) is fixedly connected to the inner wall of the first (8) drive shaft (9), a distributing roller (14) is fixedly connected to the inner wall of the second (9) housing, an electric slide rail (17) is provided in the middle of the inner side of the housing (1), a moving plate (18) is slidably connected to the outer wall of the electric slide rail (17), a cylinder (16) is fixedly connected to the upper surface of the moving plate (18), an open box (15) is fixedly connected to the output end of the cylinder (16), an electric slide rail (20) is provided in the lower side of the inner side of the housing (1), a lifting plate (19) is slidably connected to the outer wall of the electric slide rail (20), and a cutting blade (21) is provided on the upper surface of the lifting plate (19).

4. The macadamia nut opening machine according to claim 2, characterized in that: The outer wall of the fixing column (29) is slidably connected to the inside of the release groove (5), and the fixing column (29) is used to limit the position of the screening plate (4).

5. A macadamia nut opening machine according to claim 2, characterized in that: One end of the second spring (32) is fixedly connected to one side of the outer wall of the slider (33), and the second spring (32) is used to push the slider (33) to move.

6. The macadamia nut opening machine according to claim 1, characterized in that: One end of the spring (25) is fixedly connected to one side of the outer wall of the closed block (27), and the spring (25) is used to push the closed block (27) to move.

7. The macadamia nut opening machine according to claim 1, characterized in that: The upper surface of the closing block (27) is slidably connected to the lower surface of the feed hopper (28), and the closing block (27) is used to close the feed hopper (28).

8. The macadamia nut opening machine according to claim 1, characterized in that: The upper surface of the feeding box (26) is slidably connected to the lower surface of the feeding hopper (28), and the feeding box (26) is used to open the feeding hopper (28).