Walnut screening device for walnut oil production

CN224641589UActive Publication Date: 2026-08-18HEBEI SHIWEITIAN AGRICULTURAL PRODUCTS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521966380.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-08-18
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

[0003]上述装置通过筛分槽口将较小的核桃筛分出去,筛分槽口的大小固定,不能进行调节,影响核桃筛分质量,在大核桃出料时,需要人工对集料斗进行移动,在移动过程容易造成核桃碎裂,影响筛分质量,人工操作出料影响工作效率

Benefits of technology

1、通过调节调节板的高度调节筛分口开口的大小,适用于不同大小的核桃,提高了适用性,较小的核桃从筛分口滑出,较大的核桃留在筛分箱内,通过出料板对核桃进行导向,调节板采用软硅胶材质,避免核桃与调节板磕碰造成碎裂,提高了筛分质量;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a walnut screening device for walnut oil production, which comprises a fixed frame, a screening box, a feeding hopper communicated with the fixed frame, the feeding hopper located directly above the screening box, guide strips, each guide strip provided with a plurality of universal ball bearings mounted on the surface, the bottom surface of the screening box in contact with the steel balls on the universal ball bearings, a screening assembly for screening walnuts by size, and the screening assembly arranged on the screening box. The utility model has the advantages that the screening assembly is used for screening walnuts, suitable for walnuts of different sizes, improving the applicability and screening quality, facilitating the removal of walnuts in the screening box, eliminating the need for manual operation, and improving the work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of walnut screening technology, specifically a walnut screening device for walnut oil production. Background Technology

[0002] Utility model application CN202222742606.5 discloses a walnut sieving device for walnut oil production. The device uses a cam on the motor output shaft to rotate, which in turn drives a sieving box in contact with the cam. With the cooperation of a slider in the trough and a spring on the slider rod, the sieving box performs a reciprocating motion, moving left and right, thus separating smaller walnuts from the sieving trough and achieving the purpose of sieving walnuts by size.

[0003] The above-mentioned device separates smaller walnuts through a screening trough. The size of the screening trough is fixed and cannot be adjusted, which affects the screening quality of the walnuts. When discharging larger walnuts, the hopper needs to be moved manually. During the movement, the walnuts are easily broken, which affects the screening quality. Manual operation of the discharge also affects work efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a walnut screening device for walnut oil production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A walnut screening device for walnut oil production includes: Fixed frame; A screening box, with a feed hopper connected to the fixed frame, the feed hopper being located directly above the screening box; The guide bar has two parts, and a number of universal balls are installed on the surface of the guide bar. The bottom surface of the screening box is in contact with the steel balls on the universal balls. A screening assembly for screening walnuts by size, the screening assembly being mounted on a screening box.

[0006] Furthermore, the screening assembly includes an adjusting plate, a screening port is provided on one side of the screening box, the adjusting plate is located inside the screening box and above the screening port, two guide grooves are provided on the side wall of the screening box, the two guide grooves are respectively located on both sides above the screening port, a Torx handle screw is provided in the guide groove, the screw of the Torx handle screw is threadedly connected to the adjusting plate, an anti-slip pad is fixedly connected to the screw of the Torx handle screw, the anti-slip pad is in contact with the side wall of the screening box, and a discharge plate is connected to the outer wall of the screening box on the side of the screening port.

[0007] Furthermore, the screening assembly also includes a discharge baffle. The bottom of the screening box is provided with a fixed opening. The discharge baffle is hinged in the fixed opening via a rotating shaft. A guide rail is installed on one side of the bottom of the screening box. The guide rail is located on one side of the fixed opening. A sliding block is slidably connected to the guide rail. A rotating rod is rotatably connected to one end of the sliding block. The rotating rod contacts the discharge baffle. A power push rod is connected to the bottom of the screening box via a bracket. A fixed block is installed on the telescopic end of the power push rod. The fixed block is fixedly connected to the sliding block.

[0008] Furthermore, the adjustment plate is made of soft silicone.

[0009] Furthermore, the fixed frame is provided with a feeding port, which is located between the two guide bars and below the fixed opening. The fixed frame is also equipped with a discharge guide plate, which is located below the discharge plate.

[0010] The walnuts are discharged through the feeding port and the discharge guide plate, which facilitates the collection of the walnuts without the need for manual handling.

[0011] Furthermore, an arc-shaped wear-resistant plate is fixedly connected to the other side of the screening box. A drive motor is mounted on the fixed frame via a bracket. An eccentric wheel is mounted on the output end of the drive motor. The eccentric wheel contacts the arc-shaped wear-resistant plate. Two fixed side plates are mounted on the fixed frame. The two fixed side plates are located on opposite sides of the screening box. A guide slide rod is installed between the two fixed side plates. The top of the screening box is slidably connected to the guide slide rod. A vibration spring is fitted on the guide slide rod. The vibration spring is located between the fixed side plate and the outer wall of the screening box.

[0012] The sieve box is moved back and forth by an eccentric wheel and a vibrating spring to sieve the walnuts.

[0013] Compared with existing technologies, this technical solution has the following beneficial effects: 1. The size of the sieve opening can be adjusted by adjusting the height of the adjusting plate, which is suitable for walnuts of different sizes, thus improving applicability. Smaller walnuts slide out of the sieve opening, while larger walnuts remain in the sieve box. The discharge plate guides the walnuts. The adjusting plate is made of soft silicone to prevent the walnuts from hitting the adjusting plate and breaking, thus improving the sieve quality. 2. The sliding block is driven by the power push rod to move the rotating roller. After the rotating roller moves away from under the discharge baffle, the discharge baffle opens the fixed opening through the rotating shaft. Larger walnuts in the screening box are discharged through the fixed opening, making it easy to remove the walnuts from the screening box without manual operation, which improves work efficiency. The rotating roller rotates when pushing the discharge baffle, which reduces the friction with the discharge baffle, avoids wear and damage, and improves service life. Attached Figure Description

[0014] Figure 1 This is an enlarged cross-sectional view of the screening component.

[0015] Figure 2 This is a diagram showing the open state of the feeding baffle.

[0016] Figure 3 This is a side view of the fixed frame and screening box.

[0017] Figure 4 This is an enlarged top view of the screening box.

[0018] Figure 5 This is a sectional view of the fixed frame.

[0019] In the diagram: 1. Fixed frame; 2. Screening box; 3. Feed hopper; 4. Guide bar; 5. Universal ball bearing; 6. Screening assembly; 7. Adjusting plate; 8. Screening port; 9. Guide groove; 10. Torx handle screw; 11. Anti-slip pad; 12. Discharge plate; 13. Discharge baffle; 14. Fixed opening; 15. Guide rail; 16. Sliding block; 17. Rotating roller; 18. Power push rod; 19. Fixed block; 20. Discharge port; 21. Discharge guide plate; 22. Arc-shaped wear-resistant plate; 23. Drive motor; 24. Eccentric wheel; 25. Fixed side plate; 26. Guide slide rod; 27. Vibration spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] This utility model provides, for example Figure 1-5The walnut screening device for walnut oil production shown includes: Fixed frame 1; The screening box 2 is connected to the fixed frame 1 and the feed hopper 3 is located directly above the screening box 2. Guide bar 4, there are two guide bars 4, and several universal balls 5 are installed on the surface of the guide bar 4. The bottom surface of the screening box 2 is in contact with the steel balls on the universal balls 5. Screening component 6 is used to screen walnuts by size. Screening component 6 is located on screening box 2.

[0023] The walnuts to be processed are poured into the feed hopper 3 and enter the screening box 2 through the feed hopper 3. The screening box 2 is raised by the guide bar 4 and the universal ball bearings 5. The screening box 2 moves left and right along the universal ball bearings 5. The universal ball bearings 5 ​​improve the smoothness of the movement of the screening box 2. The walnuts are screened by size through the screening component 6. The screening effect is good, no manual screening is required, reducing the labor intensity and improving the screening efficiency.

[0024] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 3 The screening assembly 6 includes an adjusting plate 7. A screening port 8 is provided on one side of the screening box 2. The adjusting plate 7 is located inside the screening box 2 and on the screening port 8. Two guide grooves 9 are provided on the side wall of the screening box 2. The two guide grooves 9 are located on both sides above the screening port 8. A Torx handle screw 10 is provided in the guide groove 9. The screw of the Torx handle screw 10 is threadedly connected to the adjusting plate 7. An anti-slip pad 11 is fixedly connected to the screw of the Torx handle screw 10. The anti-slip pad 11 fits against the side wall of the screening box 2. A discharge plate 12 is connected to the outer wall of the screening box 2 on one side of the screening port 8. The adjusting plate 7 is made of soft silicone.

[0025] Before screening, the operator loosens the plum blossom handle screw 10, ensuring the anti-slip pad 11 is not in contact with the side wall of the screening box 2. The operator slides the plum blossom handle screw 10 up and down along the guide groove 9, causing the adjusting plate 7 to rise and fall. The size of the screening opening 8 is adjusted by changing the height of the adjusting plate 7, making it suitable for different sizes of walnuts and improving its applicability. After adjusting the height of the adjusting plate 7, the operator tightens the plum blossom handle screw 10, ensuring the anti-slip pad 11 on the plum blossom handle screw 10 is in contact with the side wall of the screening box 2 to fix the adjusting plate 7. As the screening box 2 moves back and forth, smaller walnuts slide out of the screening opening 8, while larger walnuts remain inside the screening box 2 and are guided by the discharge plate 12. The adjusting plate 7 is made of soft silicone to prevent the walnuts from colliding with the adjusting plate 7 and breaking, thus improving the screening quality.

[0026] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Included with instruction manual Figure 4 The screening assembly 6 also includes a discharge baffle 13. The bottom of the screening box 2 is provided with a fixed opening 14. The discharge baffle 13 is hinged in the fixed opening 14 by a rotating shaft. A guide rail 15 is installed on one side of the bottom of the screening box 2. The guide rail 15 is located on one side of the fixed opening 14. A sliding block 16 is slidably connected on the guide rail 15. A rotating rod 17 is rotatably connected to one end of the sliding block 16. The rotating rod 17 contacts the discharge baffle 13. A power push rod 18 is connected to the bottom of the screening box 2 through a bracket. A fixed block 19 is installed on the telescopic end of the power push rod 18. The fixed block 19 is fixedly connected to the sliding block 16.

[0027] After the smaller walnuts are sieved out of the screening box 2, the power push rod 18 starts to work. The telescopic end of the power push rod 18 retracts and drives the sliding block 16 to slide along the guide rail 15 through the fixed block 19. The sliding block 16 drives the rotating roller 17 to move to the right. The rotating roller 17 moves away from the bottom of the discharge baffle 13 and opens the fixed opening 14 through the rotation of the discharge baffle 13. The larger walnuts in the screening box 2 are discharged through the fixed opening 14, which makes it easy to take out the walnuts in the screening box 2 without manual handling, thus improving work efficiency. When closing the fixed opening 14, the telescopic end of the power push rod 18 extends and drives the sliding block 16 to drive the rotating roller 17 to move to the left. The rotating roller 17 contacts the discharge baffle 13 and pushes the discharge baffle 13 to reset and close the fixed opening 14. The rotation of the rotating roller 17 when pushing the discharge baffle 13 reduces the friction with the discharge baffle 13, avoids wear and damage, and improves service life.

[0028] Refer to the instruction manual appendix Figure 4 Included with instruction manual Figure 5 The fixed frame 1 is provided with a feeding port 20, which is located between two guide bars 4 and below the fixed opening 14. The fixed frame 1 is equipped with a discharge guide plate 21, which is located below the discharge plate 12.

[0029] Two collection boxes are placed below the feeding port 20 and the discharge guide plate 21, respectively. Larger walnuts come out of the fixed opening 14 and fall into the collection box through the feeding port 20. Smaller walnuts come out of the discharge plate 12 and fall onto the discharge guide plate 21. The discharge guide plate 21 guides the smaller walnuts into the collection box, making it easier to collect the walnuts.

[0030] Refer to the instruction manual appendix Figure 5An arc-shaped wear-resistant plate 22 is fixedly connected to the other side of the screening box 2. A drive motor 23 is mounted on the fixed frame 1 via a bracket. An eccentric wheel 24 is mounted on the output end of the drive motor 23. The eccentric wheel 24 contacts the arc-shaped wear-resistant plate 22. Two fixed side plates 25 are mounted on the fixed frame 1. The two fixed side plates 25 are located on both sides of the screening box 2. A guide slide rod 26 is installed between the two fixed side plates 25. The top of the screening box 2 is slidably connected to the guide slide rod 26. A vibration spring 27 is fitted on the guide slide rod 26. The vibration spring 27 is located between the fixed side plate 25 and the outer wall of the screening box 2.

[0031] The drive motor 23 starts working, and the output end of the drive motor 23 drives the eccentric wheel 24 to rotate. The eccentric wheel 24 rotates and contacts the arc-shaped wear-resistant plate 22. The arc-shaped wear-resistant plate 22 pushes the screening box 2 to move. The screening box 2 moves along the guide slide rod 26. The screening box 2 applies pressure to the vibration spring 27, and the vibration spring 27 deforms. Under the force of the vibration spring 27, the screening box 2 moves in the opposite direction. The eccentric wheel 24 and the vibration spring 27 make the screening box 2 move back and forth to screen the walnuts.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A walnut screening device for walnut oil production, characterized in that, include: Fixed frame (1); The screening box (2) is connected to the fixed frame (1) and the feeding hopper (3) is located directly above the screening box (2); Guide bar (4), two guide bars (4) are provided, and a number of universal balls (5) are installed on the surface of the guide bar (4). The bottom surface of the screening box (2) is in contact with the steel balls on the universal balls (5). Screening component (6), which is used to screen walnuts by size, is located on the screening box (2).

2. The walnut screening device for walnut oil production according to claim 1, characterized in that, The screening assembly (6) includes an adjusting plate (7). The screening box (2) has a screening port (8) on one side. The adjusting plate (7) is located inside the screening box (2) and on the screening port (8). The screening box (2) has two guide grooves (9) on its side wall. The two guide grooves (9) are located on both sides above the screening port (8). The guide grooves (9) are provided with a Phillips screw (10). The screw of the Phillips screw (10) is threaded to the adjusting plate (7). An anti-slip pad (11) is fixedly connected to the screw of the Phillips screw (10). The anti-slip pad (11) is in contact with the side wall of the screening box (2). The screening box (2) has a discharge plate (12) connected to the outer wall on one side of the screening port (8).

3. The walnut screening device for walnut oil production according to claim 2, characterized in that, The screening assembly (6) also includes a discharge baffle (13). The bottom of the screening box (2) is provided with a fixed opening (14). The discharge baffle (13) is hinged in the fixed opening (14) by a rotating shaft. A guide slide rail (15) is installed on one side of the bottom of the screening box (2). The guide slide rail (15) is located on one side of the fixed opening (14). A sliding block (16) is slidably connected on the guide slide rail (15). A rotating rod (17) is rotatably connected to one end of the sliding block (16). The rotating rod (17) contacts the discharge baffle (13). A power push rod (18) is connected to the bottom of the screening box (2) by a bracket. A fixed block (19) is installed on the telescopic end of the power push rod (18). The fixed block (19) is fixedly connected to the sliding block (16).

4. The walnut screening device for walnut oil production according to claim 2, characterized in that, The adjustment plate (7) is made of soft silicone.

5. The walnut screening device for walnut oil production according to claim 3, characterized in that, The fixed frame (1) is provided with a feeding port (20), which is located between the two guide bars (4) and below the fixed opening (14). The fixed frame (1) is equipped with a discharge guide plate (21), which is located below the discharge plate (12).

6. The walnut screening device for walnut oil production according to claim 1, characterized in that, An arc-shaped wear-resistant plate (22) is fixedly connected to the other side of the screening box (2). A drive motor (23) is installed on the fixed frame (1) via a bracket. An eccentric wheel (24) is installed at the output end of the drive motor (23). The eccentric wheel (24) contacts the arc-shaped wear-resistant plate (22). Two fixed side plates (25) are installed on the fixed frame (1). The two fixed side plates (25) are located on both sides of the screening box (2). A guide slide rod (26) is installed between the two fixed side plates (25). The top of the screening box (2) is slidably connected to the guide slide rod (26). A vibration spring (27) is fitted on the guide slide rod (26). The vibration spring (27) is located between the fixed side plate (25) and the outer wall of the screening box (2).

Citation Information

Patent Citations

  • Walnut screening device for walnut oil production

    CN218554724U