Walnut sorting machine
By using a stepped shaft-shaped moving roller and a fixed roller in reverse rotation and a conveyor belt mechanism in the walnut sorting machine, the problems of large footprint, low sorting efficiency, and easy material jamming in existing equipment have been solved, achieving efficient and accurate walnut grading.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINZHOU QIAOPAI MACHINERIES
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
Existing walnut sorting equipment has a large footprint, low sorting output, is prone to jamming, and has low screening efficiency, making it difficult to efficiently sort walnuts of varying sizes.
Multiple sets of moving and fixed rollers are arranged inclined along the longitudinal direction of the frame. Each roller is stepped and the shaft diameter decreases. The rollers are driven to rotate in the opposite direction by a power source. The material is sorted by the conveyor belt mechanism and partitions, and the material separation gap is adjusted by the screw adjustment assembly.
It achieves walnut sorting results with small footprint, high grading accuracy, less likelihood of material jamming, and high screening efficiency, while reducing labor intensity.
Smart Images
Figure CN224486790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sorting device, and more particularly to a walnut sorting machine. Background Technology
[0002] To improve shelling efficiency, walnuts need to be sorted before shelling, that is, they are divided into different grades according to their size.
[0003] Currently, walnut sorting is mostly done using grading screens. These screens consist of multiple sets of vibrating screens arranged in a stepped pattern, with different screen aperture sizes in each set to separate the material. While this type of grading screen can sort walnuts, it occupies a large area, has low sorting capacity, and a high failure rate. It is prone to clogging and jamming with walnuts of varying sizes, requiring the walnuts to be positioned precisely to fall into the screen apertures, resulting in low screening efficiency and inconvenience for users. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a walnut sorting machine with small footprint, high grading accuracy, low material jamming, and high screening efficiency.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A walnut sorting machine includes a frame, on which multiple sets of rotating moving rollers and fixed rollers are mounted side by side, arranged at an incline along the longitudinal direction of the frame. The moving rollers and fixed rollers are arranged in parallel to each other. Each moving roller and fixed roller is a stepped shaft with multiple shaft diameters evenly distributed, and the shaft diameters decrease from top to bottom. A material separation gap is formed between each corresponding shaft diameter segment on the moving roller and fixed roller.
[0007] A power source is installed on the frame, and the power source is connected to one end of multiple sets of moving rollers and fixed rollers to drive each set of moving rollers and fixed rollers to rotate in the opposite direction.
[0008] A conveyor belt mechanism is located horizontally below multiple sets of moving and fixed rollers within the frame. Multiple partitions are located above the conveyor belt mechanism within the frame. The partitions correspond to the upper ends of the multiple sets of moving and fixed rollers and each shaft shoulder, respectively, and are used to separate the materials falling through each material distribution gap and discharge them through the conveyor belt mechanism.
[0009] As a further preferred embodiment, bearing seats are slidably mounted on both ends of the frame via multiple sliding components. Each moving roller is mounted on the bearing seat via bearings at both ends. A screw adjustment component is provided between one of the sliding components and the frame to adjust the material distribution gap between each set of moving rollers and stationary rollers.
[0010] As a further preferred embodiment, the power source is connected to one end of multiple sets of moving rollers and fixed rollers via a chain drive mechanism, and the chain drive mechanism is arranged in a wave-like pattern between the multiple sets of moving rollers and fixed rollers.
[0011] As a further preferred option, a chute is provided inside the frame below the front of multiple sets of moving rollers and stationary rollers to discharge walnuts of the largest size.
[0012] As a further preferred option, a baffle is fixed on the frame, the baffle having several baffle strips respectively located above the axial direction of each moving roller and fixed roller, used to block the material falling between each set of moving rollers and fixed rollers, and to prevent the material from rolling between two adjacent sets of moving rollers and fixed rollers.
[0013] As a further preferred option, a hopper is fixed on one side of the rear end of multiple sets of moving rollers and fixed rollers on the frame. The lower end of the hopper is provided with multiple discharge ports, which correspond to the material distribution gaps between each set of moving rollers and fixed rollers. Multiple material distributors are evenly distributed below the hopper, and each material distributor corresponds to a discharge port at the lower end of the hopper, so as to guide the walnut material discharged from the discharge port into the space between each set of moving rollers and fixed rollers in sequence.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. Due to the parallel installation of multiple sets of moving and fixed rollers on the frame, each moving and fixed roller is a stepped shaft with multiple segments of diameter that decrease from top to bottom. A material separation gap is formed between each corresponding segment of diameter on the moving and fixed rollers. The power source drives each set of moving and fixed rollers to rotate in opposite directions, thus achieving the separation of materials such as walnuts. The conveyor belt mechanism and multiple partitions inside the frame can separate the material falling through each material separation gap and discharge it through the conveyor belt mechanism, thus achieving the collection of the separated material. It has a small footprint, high grading accuracy, is not prone to material jamming, and has high screening efficiency.
[0016] 2. Bearing seats are slidably installed at both ends of the frame via multiple sliding components. Each moving roller is mounted on the bearing seat via bearings at both ends. A screw adjustment component is provided between one of the sliding components and the frame, which can adjust the material distribution gap between each set of moving rollers and fixed rollers, thereby adjusting the size of the screened material. The adjustment is convenient and can reduce labor intensity. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a front view of the present invention.
[0019] Figure 3 This is a side view of the present invention.
[0020] Figure 4 This is a rear view of the present invention without the hopper and the material distributor.
[0021] In the diagram: 1. Frame; 2. Sliding assembly; 3. Bearing seat plate; 4. Chute; 5. Bearing with seat; 6. Fixed roller; 7. Moving roller; 8. Material stop frame; 801. Material stop bar; 9. Guide chute; 10. Hopper; 11. Linear vibrator; 12. Hopper support; 13. Material distribution support; 14. Gear motor; 15. Conveyor belt mechanism; 16. Partition plate; 17. Crossbeam; 18. Screw adjustment assembly; 19. Bearing seat; 20. Material distribution gap; 21. Power source; 22. Chain drive mechanism. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figure 1-4 As shown, the present invention relates to a walnut sorting machine, which includes a frame 1 welded from square tubes. The top surface of the frame 1 is inclined. Multiple sets of rotating movable rollers 7 and fixed rollers 6 are installed side by side on the upper part of the frame 1, arranged at an angle with a lower front and a higher rear along the longitudinal direction of the frame 1. In this embodiment, six sets of movable rollers and fixed rollers are used as an example, and the movable rollers and fixed rollers are arranged in parallel and alternately. Each movable roller 7 and fixed roller 6 is a stepped shaft with multiple shaft diameters evenly distributed, and the shaft diameter decreases from top to bottom. A material separation gap 20 is formed between each corresponding shaft diameter segment on the movable roller 7 and fixed roller 6, and the material separation gap 20 increases from top to bottom. In this embodiment, four shaft diameter segments are evenly distributed on the movable roller 7 and fixed roller 6, and the material separation gap 20 is 26mm, 28mm, 30mm and 32mm from top to bottom.
[0024] The fixed roller 6 is mounted on both ends of the frame 1 via bearing seats 19. Bearing seat plates 3 are slidably mounted on the crossbeams at the upper part of both ends of the frame 1 via multiple sliding components 2. Each moving roller 7 is mounted on the bearing seat plate 3 via bearings 5. The sliding component 2 consists of a sliding track and a slider that slide together, with the track fixed to the frame 1 and the slider fixed to the bottom surface of the bearing seat plate 3. A screw adjusting component 18 is provided between the slider of one of the sliding components 2 and the frame 1 to adjust the position of the bearing seat plate 3 and the moving roller 7, thereby adjusting the material distribution gap 20 between each set of moving rollers 7 and fixed rollers 6.
[0025] A power source 21 is fixed on the frame 1 below the rear end of one set of moving rollers 7 and fixed rollers 6. The power source 21 is connected to one end of the multiple sets of moving rollers 7 and fixed rollers 6 for driving each set of moving rollers 7 and fixed rollers 6 to rotate in the opposite direction. Preferably, the power source 21 is a geared motor, and its output end is connected to one end of the multiple sets of moving rollers 7 and fixed rollers 6 through a chain drive mechanism 22. The chain of the chain drive mechanism 22 is arranged in a wave-like pattern between the multiple sets of moving rollers 7 and fixed rollers 6.
[0026] Inside the frame 1, below multiple sets of moving rollers 7 and fixed rollers 6, a conveyor belt mechanism 15 driven by a geared motor 14 is installed horizontally. Inside the frame 1, above the conveyor belt mechanism 15, multiple partitions 16 are provided. In this embodiment, four partitions are used as an example. The four partitions 16 are fixed on three crossbeams 17 and supported on the frames on both sides of the conveyor belt mechanism 15 by the three crossbeams 17. The four partitions 16 correspond to the upper ends of the multiple sets of moving rollers 7 and fixed rollers 6 and each shaft shoulder, respectively, and are used to separate the materials falling through each material distribution gap 20 and discharge them through the conveyor belt mechanism 15.
[0027] An inclined chute 4 is fixed below the front of multiple sets of moving rollers 7 and fixed rollers 6 inside the frame 1, for discharging materials such as walnuts of the largest size.
[0028] A baffle frame 8 is fixed on the frame 1. The baffle frame 8 consists of two crossbeams and several baffle strips 801 fixed below the two crossbeams. The number of baffle strips 801 is approximately equal to the number of moving rollers 7 and fixed rollers 6. The baffle strips 801 are respectively located above the axial direction of each moving roller 7 and fixed roller 6 to block the material falling between each set of moving rollers 7 and fixed rollers 6, preventing the material from rolling between two adjacent sets of moving rollers 7 and fixed rollers 6.
[0029] A hopper 10 is fixed to the rear end of multiple sets of moving rollers 7 and fixed rollers 6 on the frame 1 via a hopper bracket 12. The lower end of the hopper 10 has multiple discharge ports, each corresponding to a material distribution gap 20 between each set of moving rollers 7 and fixed rollers 6. Below the hopper 10, multiple material distributors are evenly distributed via a material distribution bracket 13. Each material distributor corresponds to a discharge port at the lower end of the hopper 10, facilitating the sequential introduction of the walnut material discharged from the discharge ports between each set of moving rollers 7 and fixed rollers 6. Each material distributor consists of a linear vibrator 11 and a guide trough 9 fixed to the linear vibrator 11. The guide trough 9 is horizontally arranged, with its outlet end corresponding to the upper rear end between each set of moving rollers 7 and fixed rollers 6.
[0030] During operation, the power source 21 and the geared motor driving the conveyor belt mechanism 15 are started. Driven by the power source 21, the moving roller 7 and the fixed roller 6 rotate in opposite directions, which can prevent the input materials such as walnuts from being crushed. Walnuts are fed into the hopper 10 through the lifting device, and fall sequentially between the rear ends of each set of moving rollers 7 and fixed rollers 6 through multiple discharge ports and a distributor. The walnuts roll on the counter-rotating moving rollers 7 and fixed rollers 6 and keep changing direction. Through the material distribution gap 20 that increases from top to bottom between the moving rollers 7 and fixed rollers 6, walnuts of different sizes fall onto the conveyor belt mechanism 15 below through different material distribution gaps 20 and are separated from each other by the partition 16. Then, under the limit of the partition 16, the conveyor belt mechanism 15 falls into the placed collection box. The largest walnuts fall onto the chute 4 in the last material distribution gap 20 and are collected by the collection box placed at the outlet of the chute 4.
[0031] During sorting, the screw of the rotating screw adjustment assembly drives the bearing seat plate 3 to slide laterally, which allows the position of the moving roller 7 to be adjusted at any time, thereby adjusting the material separation gap 20 between the moving roller 7 and the fixed roller 6.
[0032] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A walnut sorting machine, comprising a frame, characterized in that: in Multiple sets of rotating moving rollers and fixed rollers are installed side by side on the frame, arranged at an incline along the longitudinal direction of the frame. The moving rollers and fixed rollers are arranged in parallel to each other. Each moving roller and fixed roller is a stepped shaft with multiple shaft diameters evenly distributed, and the shaft diameter decreases from top to bottom. A material distribution gap is formed between each corresponding shaft diameter on the moving roller and fixed roller. A power source is installed on the frame, and the power source is connected to one end of multiple sets of moving rollers and fixed rollers to drive each set of moving rollers and fixed rollers to rotate in the opposite direction. A conveyor belt mechanism is located horizontally below multiple sets of moving and fixed rollers within the frame. Multiple partitions are located above the conveyor belt mechanism within the frame. The partitions correspond to the upper ends of the multiple sets of moving and fixed rollers and each shaft shoulder, respectively, and are used to separate the materials falling through each material distribution gap and discharge them through the conveyor belt mechanism.
2. The walnut sorting machine according to claim 1, characterized in that: in Bearing seats are slidably mounted on both ends of the frame via multiple sliding components. Each moving roller is mounted on the bearing seat via bearings at both ends. A screw adjustment component is provided between one of the sliding components and the frame to adjust the material distribution gap between each set of moving rollers and stationary rollers.
3. The walnut sorting machine according to claim 1, characterized in that: The power source is connected to one end of multiple sets of moving rollers and fixed rollers via a chain drive mechanism, and the chain drive mechanism is arranged in a wave-like pattern between the multiple sets of moving rollers and fixed rollers.
4. The walnut sorting machine according to claim 1, characterized in that: A chute is located below the front of multiple sets of moving and stationary rollers inside the frame to discharge walnuts of the largest size.
5. The walnut sorting machine according to any one of claims 1-4, characterized in that: in A baffle is fixed on the frame. The baffle has several baffle bars, which are respectively located above the axial direction of each moving roller and fixed roller. They are used to block the material falling between each set of moving rollers and fixed rollers and prevent the material from rolling between two adjacent sets of moving rollers and fixed rollers.
6. The walnut sorting machine according to claim 5, characterized in that: in A hopper is fixed on one side of the rear end of multiple sets of moving and fixed rollers on the frame. The lower end of the hopper has multiple discharge ports, which correspond to the material distribution gaps between each set of moving and fixed rollers. Multiple material distributors are evenly distributed below the hopper, and each material distributor corresponds to a discharge port at the lower end of the hopper, so as to guide the walnut material discharged from the discharge port into the space between each set of moving and fixed rollers in sequence.