A feeding device for a nut cleaning machine

By driving the hopper to rotate with a cylinder, combined with positioning and limiting components, the nut cleaning machine achieves automated feeding, solving the problems of large equipment space occupation and complex operation in the existing technology, and improving feeding efficiency and stability.

CN224429457UActive Publication Date: 2026-06-30ZHEJIANG FULE HARDWARE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FULE HARDWARE TECHNOLOGY CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In the current nut cleaning machine, the hoisting equipment and forklifts occupy a lot of space and are complicated to operate. Manual dumping is labor-intensive and affects the loading efficiency.

Method used

The feeding hopper is driven by a cylinder to rotate, and combined with positioning and limiting components, it realizes automated feeding of nuts, avoiding the use of hoisting equipment and manual tilting, and reducing the physical exertion of operators.

Benefits of technology

It improves feeding efficiency, reduces equipment space occupation and operational complexity, lowers labor intensity, and ensures that nuts are accurately and smoothly poured into the collection box.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of nut production, specifically disclosing a feeding device for a nut cleaning machine. The feeding device includes a fixed frame installed next to the cleaning machine and a collection box for collecting nuts. The collection box is fixedly connected to the upper end of the fixed frame. A feeding hopper is provided at one end of the fixed frame. A rotating component for connecting to the lower end of the feeding hopper's outlet is installed at the upper end of the fixed frame. A storage box for storing nuts is provided inside the feeding hopper. Cylinders for driving the feeding hopper to rotate and feed nuts are installed on both sides of the feeding hopper. Positioning components for limiting the cylinders are fixedly connected to both ends of the feeding hopper. The lower end of the cylinder's piston rod is rotatably connected to the lower end of the fixed frame. A limiting component for limiting the storage box is installed on one side of the feeding hopper. This application achieves automated nut feeding by driving the feeding hopper to rotate with cylinders, which not only reduces the space occupied by the equipment and the complexity of operation, but also reduces the physical exertion of operators, thereby improving the nut feeding efficiency.
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Description

Technical Field

[0001] This application relates to the field of nut production, and in particular to a feeding device for a nut cleaning machine. Background Technology

[0002] A nut cleaning machine is a device specifically designed for cleaning dirt, oil, and impurities from the surface of nuts.

[0003] There are various types of feeding devices, the most common being vibratory disc type, rotary disc type, roller type, and conveyor belt feeding. After processing, the nuts are usually stored in a storage box and then transported to the cleaning process. The nuts in the storage box are then poured into a collection box, and the feeding device then transports the nuts in the collection box to the nut cleaning machine for cleaning.

[0004] In the existing technology, when pouring nuts from the storage bin into the collection bin, hoisting equipment, forklifts, or manual pouring are usually used. Using hoisting equipment and forklifts requires a lot of space and the operation process is relatively complicated, while manual pouring requires a lot of physical strength from the operator and is labor-intensive, which will affect the efficiency of nut loading. Utility Model Content

[0005] In order to reduce the space occupied by the device and improve the feeding efficiency of nuts, this application provides a feeding device for a nut cleaning machine.

[0006] The feeding device for a nut cleaning machine provided in this application adopts the following technical solution:

[0007] A feeding device for a nut cleaning machine includes a fixed frame installed next to the cleaning machine and a collection box for collecting nuts. The collection box is fixedly connected to the upper end of the fixed frame. A feeding hopper is provided at one end of the fixed frame. A rotating component for connecting to the lower end of the discharge port of the feeding hopper is installed at the upper end of the fixed frame. A storage box for storing nuts is provided inside the feeding hopper. Cylinders for driving the feeding hopper to rotate and feed are installed on both sides of the feeding hopper. Positioning components for limiting the cylinders are fixedly connected to both ends of the feeding hopper. The lower end of the piston rod of the cylinder is rotatably connected to the lower end of the fixed frame. A limiting component for limiting the storage box is installed on one side of the feeding hopper.

[0008] By adopting the above technical solution, and by setting up a feeding hopper, cylinder and rotating parts, the automatic feeding of nuts can be realized. The cylinder drives the feeding hopper to rotate, pouring the nuts in the storage box into the collection box. There is no need to use hoisting equipment, forklifts or manual dumping, avoiding the occupation of a large space and complicated operation process. At the same time, it can also reduce the physical requirements and labor intensity of operators and improve the feeding efficiency of nuts.

[0009] Optionally, the positioning component includes a positioning frame and a rotating frame. The rotating frame is fixedly installed on the outer wall of the cylinder, and the two ends of the rotating frame are rotatably connected to the two ends of the positioning frame. The positioning frame is sleeved on the outside of the cylinder and fixedly connected to the outer wall of the feeding hopper.

[0010] By adopting the above technical solution, the connection between the cylinder and the feeding hopper becomes more stable and reliable. This ensures the normal operation of the cylinder and limits its range of motion, preventing it from shaking or shifting during operation. This improves the stability and reliability of the entire feeding device and further ensures that the nuts can be accurately and smoothly poured into the collection box.

[0011] Optionally, a transition block is fixedly connected to the lower end of the piston rod of each cylinder, two positioning seats are fixedly connected to the lower end of the fixed frame, and the lower end of the rotating block is rotatably connected to the upper end of the positioning seats.

[0012] By adopting the above technical solution, the installation and connection of the cylinder are made more secure, and the cylinder can flexibly drive the feeding hopper to rotate during operation. This can further improve the stability and reliability of the feeding device, reduce equipment failures caused by loose or insecure connections, and extend the service life of the equipment.

[0013] Optionally, the rotating component includes two bearing seats and a rotating rod. The lower sides of the two bearing seats are fixedly connected to the upper end of the fixed frame. The rotating rod is rotatably connected between the two bearing seats and its outer wall is connected to the lower side of the discharge port of the hopper.

[0014] By adopting the above technical solution, the discharge port of the feeding hopper can be smoothly and accurately docked with the collection box. Through the connection of the bearing seat and the rotating rod, the feeding hopper can achieve stable rotation under the drive of the cylinder, ensuring that the nuts can be poured smoothly and evenly from the feeding hopper into the collection box, avoiding the phenomenon of nuts getting stuck or piling up during the pouring process, and improving the accuracy and efficiency of feeding.

[0015] Optionally, two positioning blocks are fixedly connected to the lower side of the feeding hopper, and the rotating rod is fixedly connected between the two positioning blocks.

[0016] By adopting the above technical solution, the connection stability between the feeding hopper and the rotating rod can be enhanced, so that the feeding hopper can run more smoothly during rotation, reducing the uneven pouring or spillage of the nut due to loose connection, and ensuring that the nut can be poured into the collection box smoothly and completely.

[0017] Optionally, a baffle for limiting the storage bin is fixedly connected to the upper side of the feeding hopper.

[0018] By adopting the above technical solution, the baffle can not only effectively prevent the nuts in the storage box from overflowing during the feeding process, but also prevent the storage box from tipping over, avoid the nuts from falling off, and improve the accuracy and safety of feeding.

[0019] Optionally, the limiting component includes an electric push rod and a limiting plate. A positioning plate fixedly connected to the lower end of the electric push rod is fixedly connected to one side of the feeding hopper. One end of the piston rod of the electric push rod is fixedly connected to one side of the limiting plate. A sliding groove for the limiting plate to slide is provided on one side of the feeding hopper. One end of the limiting plate passes through the sliding groove and is connected to one side of the storage box to restrict the storage box inside the feeding hopper.

[0020] By adopting the above technical solution, the piston rod of the electric push rod can precisely control the movement of the limit plate, thereby achieving precise positioning of the storage box, preventing the storage box from sliding in the feeding hopper, ensuring the accurate position of the storage box in the feeding hopper, and thus improving the practicality and safety of the device.

[0021] Optionally, a return spring sleeved on the outside of the electric push rod is fixedly connected between the positioning plate and the limiting plate.

[0022] By adopting the above technical solution, the elastic force of the return spring can absorb part of the impact force during the operation of the electric push rod, ensuring that the device can quickly return to the initial state, protecting the electric push rod and limit plate and other components, and extending the service life of the equipment.

[0023] In summary, this application has the following beneficial effects:

[0024] 1. This application achieves automated nut feeding by driving the feeding hopper to rotate with a cylinder. This not only reduces the space occupied by the equipment and the complexity of operation, but also reduces the physical exertion of the operator, thereby improving the feeding efficiency of nuts.

[0025] 2. This application makes the movement of the cylinder and the feeding hopper more stable through the positioning and rotating parts, and further improves the flexibility and reliability of the storage box limit through the limiting parts and the return spring, reduces the equipment failure rate, extends the service life, and ensures that the nut can be poured into the collection box smoothly and accurately. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the feeding device according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the collection box and the feeding hopper according to an embodiment of this application;

[0028] Figure 3 This is a front view of the fixing frame and the feeding hopper according to an embodiment of this application;

[0029] Figure 4 yes Figure 3 A cross-sectional view along line AA.

[0030] Explanation of reference numerals in the attached drawings: 1. Fixed frame; 2. Collection box; 3. Feeding hopper; 31. Positioning block; 32. Baffle; 33. Positioning plate; 34. Slide groove; 4. Rotating component; 41. Shaft seat; 42. Rotating rod; 5. Storage box; 6. Cylinder; 61. Transfer block; 7. Positioning component; 71. Positioning frame; 72. Rotating frame; 8. Limiting component; 81. Electric push rod; 82. Limiting plate; 83. Return spring; 9. Positioning seat. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a feeding device for a nut cleaning machine.

[0033] Reference Figure 1 The feeding device includes a fixed frame 1 and a collection box 2. The collection box 2 is fixedly installed on the upper end of the fixed frame 1 and is used to collect nuts and is connected to the washing machine. The fixed frame 1 is used to ensure the stability of the device. The washing machine is existing technology and will not be described in detail here. A feeding hopper 3 is provided on one side of the fixed frame 1. The discharge port of the feeding hopper 3 is open funnel-shaped. A rotating part 4 connected to the upper end of the fixed frame 1 is fixedly connected to the lower side of the discharge port. The rotating part 4 is used to ensure that the discharge port of the feeding hopper 3 always rotates along the rotating part 4 when the feeding hopper 3 rotates. The other end of the feeding hopper 3 is open and its interior is used to place a storage box 5 for storing nuts. Positioning parts 7 are fixedly connected to both sides of the feeding hopper 3. A cylinder 6 is rotatably connected to the inner side of each positioning part 7 and connected to the lower end of the fixed frame 1. A control cabinet for driving the cylinder 6 is fixedly connected to one side of the fixed frame 1. When the cylinder 6 operates, the extension and retraction of its piston rod can push one end of the feeding hopper 3 to rotate and lift until its discharge port extends into the collection box 2, allowing the nut inside the storage box 5 to slide into the collection box 2 along the discharge port of the feeding hopper 3, waiting for the cleaning machine to clean it. A limiting member 8 is fixedly installed at the end of the feeding hopper 3 away from the discharge port to limit the storage box 5. The limiting member 8 is used to prevent the storage box 5 from being misaligned or falling during the feeding process.

[0034] Reference Figure 1 , Figure 2The rotating component 4 includes two bearing seats 41 fixedly connected to the upper end of the fixed frame 1 and a rotating rod 42 rotatably connected between the two bearing seats 41. The inner wall of each bearing seat 41 is fixedly connected to a bearing connected to the outer wall of the rotating rod 42 to ensure the stability of the rotation of the rotating rod 42, reduce friction between the rotating rod 42 and the bearing seat 41, and improve the service life of the structure. Two positioning blocks 31 are fixedly connected to the lower end of the discharge port of the feeding hopper 3. The outer walls of both positioning blocks 31 are fixedly connected to the outer wall of the rotating rod 42 to ensure the stability of the connection between the rotating rod 42 and the feeding hopper 3, preventing left and right displacement of the feeding hopper 3 during rotation.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The positioning component 7 includes a positioning frame 71 fixedly connected to the feeding hopper 3. A rotating frame 72 is rotatably connected to the inner side of the positioning frame 71. The positioning frame 71 is used to ensure the stability of the rotating frame 72. The inner wall of the rotating frame 72 is fixedly connected to the outer wall of the cylinder 6. When the cylinder 6 is running, as the feeding hopper 3 is raised, the cylinder body of the cylinder 6 can rotate inside the positioning frame 71 with the help of the rotating frame 72. This not only ensures the stability of the cylinder 6, but also prevents the cylinder 6 from jamming during operation, thereby ensuring the rotation effect and stability of the feeding hopper 3. The lower ends of the piston rods of the two cylinders 6 are fixedly connected to the transition blocks 61. The lower ends of the fixed frame 1 are fixedly connected to the positioning seats 9, the upper ends of which are hinged to the transition blocks 61. The upper ends of the positioning seats 9 are fixedly connected to the pins that are rotatably connected to the inner wall of the transition blocks 61. When the cylinder 6 is running, the connecting blocks rotate along the upper end of the positioning seats 9.

[0036] Reference Figure 2 , Figure 4 The limiting component 8 includes an electric push rod 81 and a limiting plate 82 fixedly connected to one end of the electric push rod 81. A positioning plate 33, which is U-shaped and fixedly connected to one end of the electric push rod 81, is fixedly connected to one side of the feeding hopper 3. This positioning plate 33 not only ensures the stability of the electric push rod 81 but also prevents it from being directly impacted, thus improving its service life. The two sides of the limiting plate 82 slide inside the positioning plate 33, and one end of the feeding hopper 3 has a groove 34 for the sliding insertion of one end of the limiting rod. A return spring 83 is fixedly connected between the limiting plate 82 and the positioning plate 33. The return spring 83 allows the limiting plate 82 to quickly return to its initial position, protecting the electric push rod 81 and the limiting plate 82. A baffle 32 is fixedly connected to the upper end of the feeding hopper 3 to prevent the storage box 5 from tipping over and to prevent the storage box 5 from shaking.

[0037] When the electric push rod 81 pushes the limiting plate 82 to move, one end of the limiting plate 82 passes through the slide groove 34 and inserts into the inner side of the feeding hopper 3 until one side of the limiting plate 82 is pressed against the feeding hopper 3, the electric push rod 81 stops running. At this time, the limiting plate 82 can limit the storage box 5 to prevent the storage box 5 from sliding during the feeding process.

[0038] The principle of the feeding device of the nut cleaning machine in this application embodiment is as follows: During feeding, firstly, the storage box 5 containing nuts is loaded into the feeding hopper 3. Then, the electric push rod 81 is activated, pushing the limiting plate 82 to insert into the slide groove 34 and extend into the feeding hopper 3, fitting against one side of the storage box 5, thus limiting the storage box 5. Secondly, the two cylinders 6 are activated, and the extension of their piston rods pushes one end of the feeding hopper 3 to rise, and the discharge port of the feeding hopper 3 rotates along the rotating rod 42 until one end of the discharge port is reached. The nut is inserted into the collection box 2. At this time, the nut in the storage box 5 slides into the collection box 2 from the outlet under the action of gravity. The upper end of the nut is ready to enter the cleaning machine for cleaning. Finally, when all the nuts in the storage box 5 are poured out, the cylinder 6 runs again and its piston rod retracts until the lower side of the feeding hopper 3 contacts the ground. Then, the electric push rod 81 is controlled to retract, which drives the limit plate 82 to disengage from the inner side of the feeding hopper 3. Then the storage box 5 is replaced and the above steps are repeated to complete the feeding of the nuts.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for a nut cleaning machine, comprising a fixed frame (1) installed beside the cleaning machine and a collection box (2) for collecting nuts, characterized in that: The collection box (2) is fixedly connected to the upper end of the fixed frame (1). One end of the fixed frame (1) is provided with a feeding hopper (3). The upper end of the fixed frame (1) is equipped with a rotating part (4) for connecting with the lower end of the discharge port of the feeding hopper (3). The inside of the feeding hopper (3) is provided with a storage box (5) for storing nuts. Both sides of the feeding hopper (3) are equipped with cylinders (6) for driving the feeding hopper (3) to rotate and feed materials. Both ends of the feeding hopper (3) are fixedly connected with positioning parts (7) for limiting the cylinders (6). The lower end of the piston rod of the cylinder (6) is rotatably connected to the lower end of the fixed frame (1). One side of the feeding hopper (3) is equipped with a limiting part (8) for limiting the storage box (5).

2. The feeding device of the nut cleaning machine according to claim 1, characterized in that: The positioning component (7) includes a positioning frame (71) and a rotating frame (72). The rotating frame (72) is fixedly installed on the outer wall of the cylinder (6), and the two ends of the rotating frame (72) are rotatably connected to the two ends of the positioning frame (71). The positioning frame (71) is sleeved on the outside of the cylinder (6) and fixedly connected to the outer wall of the feeding hopper (3).

3. The feeding device of the nut cleaning machine according to claim 1, characterized in that: Each cylinder (6) has a piston rod with a fixed adapter block (61) at the lower end. The lower end of the fixed frame (1) is fixedly connected to two positioning seats (9). The lower end of the adapter block (61) is rotatably connected to the upper end of the positioning seat (9).

4. The feeding device of the nut cleaning machine according to claim 1, characterized in that: The rotating component (4) includes two bearing seats (41) and a rotating rod (42). The lower sides of the two bearing seats (41) are fixedly connected to the upper end of the fixed frame (1). The rotating rod (42) is rotatably connected between the two bearing seats (41) and its outer wall is connected to the lower side of the discharge port of the feeding hopper (3).

5. The feeding device of the nut cleaning machine according to claim 4, characterized in that: Two positioning blocks (31) are fixedly connected to the lower side of the feeding hopper (3), and the rotating rod (42) is fixedly connected between the two positioning blocks (31).

6. The feeding device of the nut cleaning machine according to claim 1, characterized in that: The upper side of the feeding hopper (3) is fixedly connected to a baffle (32) for limiting the storage box (5).

7. The feeding device of the nut cleaning machine according to claim 1, characterized in that: The limiting component (8) includes an electric push rod (81) and a limiting plate (82). A positioning plate (33) is fixedly connected to one side of the feeding hopper (3) and to one end of the electric push rod (81). One end of the piston rod of the electric push rod (81) is fixedly connected to one side of the limiting plate (82). A sliding groove (34) is provided on one side of the feeding hopper (3) for the limiting plate (82) to slide. One end of the limiting plate (82) passes through the sliding groove (34) and is connected to one side of the storage box (5) to limit the storage box (5).

8. The feeding device of the nut cleaning machine according to claim 7, characterized in that: A return spring (83) sleeved on the outside of the electric push rod (81) is fixedly connected between the positioning plate (33) and the limiting plate (82).