A walnut shelling and sorting production line

Abstract

A walnut shelling and sorting production line includes a vibrating hopper, a primary elevator, a primary shelling unit, a secondary elevator, and a secondary shelling machine. Its key feature is that a first feeder is located below the primary shelling unit, with one outlet of the first feeder connected to the inlet of the secondary elevator via a chute. A first multi-layer grading screen is located transversely below the first feeder. The first feeder includes a linear vibrator, on which a feeding disc is fixed. A disc bottom is located on the disc corresponding to the rear half of the linear vibrator. Vertical edges are located on both sides and the rear end of the disc. Multiple circular tubes are arranged at intervals below the disc bottom on the disc, extending to the front end of the disc and arranged in a fan shape, such that the gap between adjacent tubes gradually increases from the rear end to the front end of the disc. This production line has high screening efficiency and good results, capable of removing more shells and kernels, reducing floor space, and features a simple structure, ease of manufacture, and low cost.

Description

Technical Field

[0001] This utility model relates to nut shelling and sorting equipment, and in particular to a walnut shelling and sorting production line. Background Technology

[0002] Walnut shelling and sorting equipment is used to shell and sort walnuts to obtain walnut kernels and shells of different sizes and grades.

[0003] The existing walnut shelling and sorting equipment includes, in sequence, a vibrating feed hopper, a primary elevator, a primary shelling machine, a primary sorting screen, a primary belt conveyor, a secondary elevator, a secondary shelling machine, a secondary belt conveyor, a secondary sorting screen, a first-path sorting screen, a second-path sorting screen, a third-path sorting screen, as well as a primary shelling and peeling system and a secondary shelling and peeling system. Its process flow is as follows: 1. The raw materials are fed into the primary elevator via a vibrating hopper, and then fed into the primary shelling machine via the primary elevator; 2. The walnut raw material is deshelled by a primary shelling machine. The deshelled material in various states enters a primary sorting screen. The primary sorting screen separates the shells and kernels from the mixture and feeds them into a secondary elevator via a primary belt conveyor. Then, the shells and kernels are fed into a secondary shelling machine. 3. After the shell and kernel are removed by the primary sorting screen, the other materials are fed into the secondary belt conveyor and then into the secondary sorting screen. 4. The shells and kernels separated by the primary sorting screen are deshelled again by the secondary deshelling machine. The deshelled materials in various states are then deshelled by the secondary deshelling and skin suction system. The deshelled materials are then fed into the secondary belt conveyor and fed into the secondary sorting screen. 5. The shells and kernels in the mixture are separated by a secondary sorting screen and fed into a belt elevator, where they are then fed into a secondary deshelling machine for deshelling. 6. The materials other than the shell and kernel are fed into the primary sorting screen through the secondary sorting screen. The primary sorting screen separates the primary kernel and the skin and shell and kernel with similar size from the primary kernel in the mixture, and removes the walnut skin through the finished product skin suction system. 7. The first sorting screen separates the kernels and other materials other than the shells and husks of the same size from the first sorting screen. The second sorting screen separates the kernels and shells of similar size from the second sorting screen. The walnut shells are then removed by the finished product shell suction system. 8. The kernels and other materials other than the skins of the same size are fed into the third sorting screen through the second sorting screen. The third sorting screen separates the kernels and skins of similar size. The skins are then removed by the finished product skin suction system. The remaining materials are collected manually.

[0004] This walnut shelling and sorting equipment has the following problems: 1. The equipment occupies a large area, making it impossible for some customers with limited space to install and use it; 2. The walnut kernels produced after shelling have an excessively long sieving path, resulting in severe surface abrasion during the sieving process. 3. Poor shell-and-kernel separation results in a large amount of shell-and-kernel residue in the finished product; the equipment is expensive, making it unaffordable for some small-scale processing customers. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a walnut shelling and sorting production line that has a small footprint, high sorting efficiency, reduces wear on the surface of walnut kernels, and improves the surface quality of kernels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A walnut shelling and sorting production line includes a vibrating feeder, a primary elevator, a primary shelling unit, a secondary elevator, and a secondary shelling machine arranged longitudinally. The special feature is that a first feeder is provided below the primary shelling unit. One end of the outlet of the first feeder is connected to the feed inlet of the secondary elevator through a chute, which is used to screen out the shell-wrapped kernel material after shelling by the primary shelling unit and send it into the secondary shelling machine. A first multi-layer grading screen is provided horizontally below the first distributor to screen the material falling through the first distributor and separate the first, second, and third channels of material and fine powder. The first feeding device includes a linear vibrator, a feeding disc is fixed on the linear vibrator, a disc bottom is provided on the feeding disc corresponding to the rear half of the linear vibrator, and vertical edges are provided on both sides and the rear end of the feeding disc. Multiple round tubes are arranged at intervals below the disc bottom on the feeding disc. The multiple round tubes extend to the front end of the feeding disc and are arranged in a fan shape, so that the gap between two adjacent round tubes gradually increases from the rear end to the front end of the feeding disc, so that walnut kernels of various sizes can fall through the gap between adjacent round tubes.

[0007] As a further preferred option, a material cleaner is provided at the front end of multiple round tubes of the first material feeder on the frame of the primary desizing unit, which is used to clean up the material stuck between the front ends of adjacent round tubes.

[0008] As a further preferred embodiment, the fabric cleaner includes two hangers, with a motor located on the outside of one of the hangers. The output end of the motor is connected to a cleaning shaft, which is located below the front ends of multiple round tubes. The other end of the cleaning shaft is mounted on another hanger via a bearing. Multiple cleaning blades are arranged at intervals on the cleaning shaft, and the outer edges of the cleaning blades are inserted between the front ends of two adjacent round tubes to facilitate cleaning the material.

[0009] As a further preferred option, the cleaning blade is windmill-shaped.

[0010] As a further preferred embodiment, the first multi-layer grading screen includes an upper screen body and a lower screen body. Within the frame of the upper screen body, there are front-to-back arranged lead-path screen plates and powder screen plates. The diameter of the screen holes on the powder screen plates is much smaller than that of the lead-path screen plates. Within the frame, below the powder screen plates, there is a receiving plate, and at the front end of the receiving plate, there is a powder chute. The powder chute extends from one side of the lower screen body and is used to screen out fine powder. Within the frame, at the front end of the lead-path screen plates, there is a lead-path chute. The lead-path chute extends from one side of the upper screen body and is used to screen out lead-path materials. The lower screen body is equipped with two screen plates and a bottom plate arranged vertically. At the front end of the two screen plates and the bottom plate, there are discharge nozzles and guide troughs, which are used to screen out the second and third materials respectively.

[0011] As a further preferred embodiment, a grid frame is provided within the frame of the upper screen body, below the first-path screen plate and the powder screen plate. A screen is provided on the bottom surface of the grid frame, and multiple rubber balls are provided in each grid of the grid frame to follow the vibration of the upper screen body and impact the first-path screen plate and the powder screen plate, thereby preventing the screen holes of the first-path screen plate and the powder screen plate from becoming clogged.

[0012] As a further preferred embodiment, a grid frame is also provided within the frame of the lower screen body, below the second-stage screen plates. A screen is provided on the bottom surface of the grid frame, and multiple rubber balls are provided in each grid of the grid frame to follow the vibration of the lower screen body and impact the second-stage screen plates, thereby preventing the screen holes of the second-stage screen plates from becoming clogged.

[0013] As a further preferred option, the production line is also equipped with a third shelling machine and a third elevator. A second feeder is provided below the second shelling machine, which has the same structure as the first feeder. One end of the outlet of the second feeder is connected to the feed inlet of the third elevator through a chute, and is used to screen out the shelled kernel material after the second shelling machine from entering the third shelling machine.

[0014] As a further preferred embodiment, a second multi-layer grading screen is provided horizontally below the second distributor. It has the same structure as the first multi-layer grading screen and is used to screen the material falling through the second distributor and after being deshelled by the three deshellers, and to separate the first, second, and third channels and fine powder.

[0015] As a further preferred embodiment, the production line is also equipped with a parallel arrangement of a first-path conveyor belt mechanism, a second-path conveyor belt mechanism, and a third-path conveyor belt mechanism. The first-path chute, discharge nozzle, and guide chute outlet of the first multi-layer grading screen and the second multi-layer grading screen are respectively located above the first-path conveyor belt mechanism, the second-path conveyor belt mechanism, and the third-path conveyor belt mechanism, so as to facilitate the output of materials from the first, second, and third paths respectively.

[0016] The beneficial effects of this utility model are as follows: 1. Because a first feeder is installed below the primary shelling unit, and one end of the first feeder is connected to the feed inlet of the secondary elevator through a chute, the first feeder can replace the traditional primary sorting screen to remove the shelled kernels after the primary shelling unit and allow them to enter the secondary shelling machine. By arranging multiple round tubes in a fan shape at intervals on the feed plate, the gap between two adjacent round tubes gradually increases from the rear end to the front end of the feed plate, allowing walnut kernels of various sizes to fall through the gap between adjacent round tubes. This results in high screening efficiency, good screening effect, removal of more shelled kernels, reduced floor space, simple structure, easy manufacturing, and low cost.

[0017] 2. Because a first multi-layer grading screen is installed horizontally below the first distributor, it can replace the first-path, second-path, and third-path sorting screens in the traditional structure, screening the material falling through the first distributor and separating the first-path, second-path, and third-path materials and fine powder. This not only reduces the wear on the surface of the walnut kernels and improves the surface quality of the kernels, but also prevents oily fine powder from clogging the screen holes of the first multi-layer grading screen, extending the equipment cleaning cycle. Furthermore, it further reduces the floor space and lowers the manufacturing cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 yes Figure 1 Top view.

[0020] Figure 3 yes Figure 1 Rear view.

[0021] Figure 4 yes Figure 1 AA sectional view.

[0022] Figure 5 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 6 This is a schematic diagram of the first fabric feeder.

[0024] Figure 7 yes Figure 6 Top view.

[0025] Figure 8 yes Figure 6 A three-dimensional structural diagram.

[0026] Figure 9 This is a schematic diagram of the structure of the first multi-layer grading sieve.

[0027] Figure 10 yes Figure 9 Top view.

[0028] Figure 11 yes Figure 10 BB cross-sectional view.

[0029] Figure 12 yes Figure 9 A three-dimensional structural diagram.

[0030] In the diagram: 1. Vibrating hopper; 2. Primary elevator; 3. First-stage suction air box; 4. First multi-layer grading screen; 5. Primary dehulling unit; 6. Secondary elevator; 7. Secondary dehulling machine; 8. Tertiary dehulling machine; 9. Tertiary elevator; 10. Second-stage suction air box; 11. Third-stage suction air box; 12. Second multi-layer grading screen; 13. Frame; 14. Frame; 15. Vibrating distribution disc; 16. Conveyor; 17. First cyclone separator; 18. Second cyclone separator; 19. Third cyclone separator; 20. Fourth cyclone separator; 21. Three-way conveyor belt mechanism; 22. Two-way conveyor belt mechanism; 23. First-stage conveyor belt mechanism; 24. Primary suction air box; 25. First distribution device. 26. Chute 27. Secondary suction box 28. Secondary material distributor 29. Material cleaner 30. Linear vibrator 30. Material distribution disc 31. Disc bottom 311. Vertical side 312. Hanger 32. Motor 33. Round tube 34. Cleaning knife 35. Cleaning shaft 36. Connecting sleeve 37. Support frame 38. Rubber spring 39. Guide chute 40. Discharge nozzle 41. Lower screen body 42. Upper screen body 43. Vibrating motor 44. First-path chute 45. First-path screen plate 46. Powder screen plate 47. Frame 48. Screen 49. Rubber ball 50. Grid frame 51. Powder chute 52. Receiving plate 53. Bottom plate 54. Second-path screen plate 55. Frame 56. Detailed Implementation

[0031] 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.

[0032] like Figure 1-5 As shown, this utility model relates to a walnut shelling and sorting production line, comprising a vibrating feeding hopper 1, a primary elevator 2, a primary shelling unit 5, a secondary elevator 6, and a secondary shelling machine 7 arranged longitudinally. The vibrating feeding hopper 1 includes a feeding hopper supported by a bracket and a vibrating feeder installed on the bracket below the hopper outlet, used to feed walnut materials into the primary elevator 2. Both the primary elevator 2 and the secondary elevator 6 are Z-type bucket elevators, used to feed materials into the primary shelling unit 5 and the secondary shelling machine 7, respectively.

[0033] The primary shelling unit 5 includes two primary shelling machines 501 arranged side by side and mounted on a frame 14. Both the primary shelling machine and the secondary shelling machine 7 adopt the shelling machine structure disclosed in publication number CN117958448A.

[0034] On the frame 14, below the outlets of the two shelling machines of the primary shelling unit 5, a first feeder 25 is installed. One end of the outlet of the two first feeders 25 is connected to the feed inlet of the secondary elevator 6 through a chute 26, which is used to screen out the shelled kernel material after shelling by the primary shelling unit 5 and send it into the secondary shelling machine 7.

[0035] like Figure 6-8 As shown, the first feeder 25 includes a linear vibrator 30 fixed on the frame 14. A feed plate 31 is fixed on the linear vibrator 30. The feed plate 31 is made of stainless steel plate. A bottom plate 311 is provided on the feed plate 31 corresponding to the rear half of the linear vibrator 30. Vertical edges 312 are provided on both sides and the rear end of the feed plate 31. Multiple round tubes 34 are arranged at intervals on the feed plate 31 below the bottom plate through three evenly distributed ribs. The multiple round tubes 34 extend to the front end of the feed plate 31 and are arranged in a fan shape, so that the gap between two adjacent round tubes 34 gradually increases from the rear end to the front end of the feed plate 31, so that walnut kernels of various sizes can fall through the gap between adjacent round tubes 34 after shelling.

[0036] On the frame 14 of the primary desizing unit 5, at the front end of the multiple round tubes 34 of the first feeder 25, a feeder cleaner 29 is provided to clean up the material stuck between the front ends of adjacent round tubes 34.

[0037] The fabric cleaner 29 includes two hangers 32 fixed on the frame 14. A motor 33 is installed on the outside of one of the hangers 32. The output end of the motor 33 is connected to a cleaning shaft 36 through a connecting sleeve 37. The cleaning shaft 36 is located below the front end of multiple round tubes 34. The other end of the cleaning shaft 36 is mounted on another hanger 32 through a bearing. Multiple cleaning blades 35 are fixedly arranged at intervals on the cleaning shaft 36. The cleaning blades 35 are windmill-shaped, and the outer edges of the cleaning blades 35 are respectively inserted between the front ends of two adjacent round tubes 34 to facilitate cleaning of materials.

[0038] A first multi-layer grading screen 4 is provided horizontally below the first distributor 25 to screen the material falling through the first distributor 25 and separate the first, second, and third path materials and fine powder.

[0039] like Figure 9-12As shown, the first multi-layer grading screen 4 includes a support frame 38. An upper screen body 43 and a lower screen body 42 are arranged vertically on the support frame 38 by two pairs of rubber springs 39. The upper screen body 43 is fixed to the frame of the lower screen body 42 by screws. A vibration motor 44 is installed at the bottom of the frame of the lower screen body 42 to drive the upper screen body 43 and the lower screen body 42 to vibrate.

[0040] The upper screen body 43 includes a frame 48, within which a front-to-back sieve plate 46 and a powder sieve plate 47 are fixed. The diameter of the sieve holes on the powder sieve plate 47 is much smaller than that on the front-to-back sieve plate 46. A receiving plate 53 is fixed to the lower part of the powder sieve plate 47 within the frame 48 by screws, and a powder chute 52 is fixed to the front end of the receiving plate 53 by bolts. The powder chute 52 extends out from one side of the lower screen body 42 and is used to screen out fine powder. A front-to-back chute 45 is fixed to the front end of the front-to-back sieve plate 46 within the frame 48 by bolts. The front-to-back chute 45 extends out from one side of the upper screen body 43 and is used to screen out the first-pass material. A grid frame 51 is fixed with screws inside the frame 48 of the upper screen body 43, below the first-path screen plate 46 and the powder screen plate 47. The grid frame 51 is made of square tubes and steel bars connected to form multiple rectangular grids. A screen 49 is welded to the bottom surface of the grid frame 51, and multiple rubber balls 50 are placed in each grid of the grid frame 51 to follow the vibration of the upper screen body 43 and impact the first-path screen plate 46 and the powder screen plate 47 to prevent the screen holes of the first-path screen plate 46 and the powder screen plate 47 from clogging.

[0041] The lower screen body 42 includes a frame 56, within which two screen plates 55 arranged vertically and a bottom plate 54 are fixed. The screen hole diameter of the second screen plate 55 is slightly smaller than that of the first screen plate 46. A discharge nozzle 41 and a guide trough 40 are respectively fixed to the front end of the second screen plate 55 and the bottom plate 54 on the frame 56 by bolts, for screening out the second and third materials respectively. A grid frame is also fixed inside the frame 56 of the lower screen body 42, below the second-stage screen plate 55. A screen is provided on the bottom surface of the grid frame, and multiple rubber balls 50 are provided in each grid of the grid frame to follow the vibration of the lower screen body 42 and impact the second-stage screen plate 55 to prevent the screen holes of the second-stage screen plate 55 from being blocked.

[0042] The production line is also equipped with a tertiary shelling machine 8 and a tertiary elevator 9. The tertiary shelling machine 8 adopts the shelling machine structure disclosed in CN206481944U and is arranged on a frame 13 with the secondary shelling machine 7. A second feeder 28 is installed on the frame 13 below the secondary shelling machine 7. The second feeder 28 has the same structure as the first feeder 25. One end of the outlet of the second feeder 28 is connected to the feed inlet of the tertiary elevator 9 through another chute 26, which is used to screen out the shelled kernel material after the secondary shelling machine 7 and enter the tertiary shelling machine 8 for the third shelling.

[0043] On the frame 13 of the secondary deshelling machine 7, at the front end of the multiple round tubes 34 of the second feeder 28, a feeder cleaner 29 is also provided to clean up the material stuck between the front ends of adjacent round tubes 34.

[0044] Below the second feeder 28 and the third dehuller 8, a second multi-layer grading screen 12 is provided horizontally. It has the same structure as the first multi-layer grading screen 4 and is used to screen the material falling through the second feeder 28 and after being dehulled by the third dehuller 8 and to separate the first, second, third and fine powder materials.

[0045] The production line is also equipped with a first-path conveyor belt mechanism 23, a second-path conveyor belt mechanism 22, and a third-path conveyor belt mechanism 21. The three conveyor belt mechanisms are arranged in parallel at the discharge end of the first multi-layer grading screen 4 and the second multi-layer grading screen 12. The outlets of the first-path chute 45, the discharge nozzle 41, and the guide chute 40 of the first multi-layer grading screen 4 and the second multi-layer grading screen 12 are located above the first-path conveyor belt mechanism 23, the second-path conveyor belt mechanism 22, and the third-path conveyor belt mechanism 21, respectively, so as to facilitate the output of materials from the first, second, and third paths.

[0046] The production line is also equipped with a skin suction device, which includes four cyclone separators arranged side by side, namely the first cyclone separator 17, the second cyclone separator 18, the third cyclone separator 19, and the fourth cyclone separator 20. On the frame 14 of the primary shelling unit 5, two primary skin suction boxes 24 are arranged side by side above the chute 26. On the frame 13 of the secondary shelling machine 7, a secondary skin suction box 27 is provided above the chute 26. The primary skin suction box 24 and the secondary skin suction box 27 are arranged vertically, with a rectangular open lower port and a round upper port. The upper ports are connected to the feed port of the first cyclone separator 17 through pipelines to suck away the walnut skins after shelling.

[0047] Vibrating material distribution discs 15 are mounted on supports at the discharge ends of the first conveyor belt mechanism 23, the second conveyor belt mechanism 22, and the third conveyor belt mechanism 21. A first-path suction box 3 is installed at the middle and outlet end of the vibrating material distribution disc 15 at the discharge end of the first conveyor belt mechanism 23. A second-path suction box 10 is installed at the middle and outlet end of the vibrating material distribution disc 15 at the discharge end of the second conveyor belt mechanism 23. A third-path suction box 11 is installed at the middle and outlet end of the vibrating material distribution disc 15 at the discharge end of the third conveyor belt mechanism 21. The first, second, and third-path suction boxes are all vertically arranged and mounted on their respective vibrating material distribution disc supports using extension bolts to facilitate height adjustment. A chute 16 is provided at the outlet end of the vibrating material distribution disc 15 and is inserted into the corresponding suction box to improve the suction effect.

[0048] The first, second, and third suction boxes have the same structure as the primary suction box 24 and the secondary suction box 27, and are respectively connected to the feed inlets of the second, third, and fourth cyclone separators through pipelines, and are used to suck away the walnut shells in the materials of the first, second, and third channels.

[0049] The production line operates on the following principle: 1. Walnut raw materials are fed into the primary elevator 2 through the vibrating hopper 1, and then enter the primary shelling unit 5 through the primary elevator 2. The two primary shelling machines in the primary shelling unit 5 shell the walnuts simultaneously. The shelled material falls onto the first distributor 25 below. The shelled walnut kernels fall onto the first multi-layer grading screen 4 through the gap between adjacent round pipes 34. The unshelled kernel material enters the feed inlet of the secondary elevator 6 through the chute 26 at one end of the outlet of the first distributor 25, and then enters the secondary shelling machine 7 through the secondary elevator 6. 2. The material falling onto the first multi-layer grading screen 4 is sieved through the powder screen plate 47 to remove fine powder and discharged into the external packaging bag through the powder chute 52 to prevent fine powder from clogging the screen holes of the first multi-layer grading screen 4; at the same time, the first-stage walnut kernels are sieved through the first-stage screen plate 46 and discharged onto the first-stage conveyor belt mechanism 23 through the first-stage chute 45; the second-stage walnut kernels are sieved through the second-stage screen plate 55 and discharged onto the second-stage conveyor belt mechanism 22 through the discharge nozzle 41; the remaining material falling onto the bottom plate 54 is discharged onto the third-stage conveyor belt mechanism 21 through the guide chute 40. 3. The material entering the secondary shelling machine 7 undergoes secondary shelling. The shelled material falls onto the second feeder 28 below. The shelled walnut kernels fall onto the second multi-layer grading screen 12 through the gap between adjacent round pipes 34. The unshelled kernel material enters the feed inlet of the tertiary elevator 9 through the chute at one end of the outlet of the second feeder 28, and then enters the tertiary shelling machine 8 through the tertiary elevator 9. 4. The material entering the three-stage deshelling machine 8 undergoes three deshelling processes. The deshelled material falls directly onto the second multi-layer grading screen 12 below. The material falling onto the second multi-layer grading screen 12 repeats step 2, and the fine powder and the first, second and third path materials are discharged onto the corresponding conveyor belts respectively. 5. Start the operation of the first conveyor belt mechanism 23, the second conveyor belt mechanism 22 and the third conveyor belt mechanism 21, and transfer the materials falling on the first, second and third conveyors to the vibrating cloth tray 15 at one end, where they are sucked up and discharged by the corresponding suction box.

[0050] 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 shelling and sorting production line, comprising a vibrating feeder, a primary elevator, a primary shelling unit, a secondary elevator, and a secondary shelling machine arranged sequentially along the longitudinal direction, characterized in that: A first material feeder is installed below the primary shelling unit. One end of the outlet of the first material feeder is connected to the feed inlet of the secondary elevator through a chute. It is used to screen out the shelled kernel material after shelling by the primary shelling unit and send it into the secondary shelling machine. A first multi-layer grading screen is provided horizontally below the first distributor to screen the material falling through the first distributor and separate the first, second, and third channels of material and fine powder. The first feeding device includes a linear vibrator, a feeding disc is fixed on the linear vibrator, a disc bottom is provided on the feeding disc corresponding to the rear half of the linear vibrator, and vertical edges are provided on both sides and the rear end of the feeding disc. Multiple round tubes are arranged at intervals below the disc bottom on the feeding disc. The multiple round tubes extend to the front end of the feeding disc and are arranged in a fan shape, so that the gap between two adjacent round tubes gradually increases from the rear end to the front end of the feeding disc, so that walnut kernels of various sizes can fall through the gap between adjacent round tubes.

2. The walnut shelling and sorting production line according to claim 1, characterized in that: On the frame of the primary desizing unit, at the front end of multiple round tubes of the first feeder, there is a feeder cleaner, which is used to clean up the material stuck between the front ends of adjacent round tubes.

3. The walnut shelling and sorting production line according to claim 2, characterized in that: The fabric cleaner includes two hangers. A motor is installed on the outside of one of the hangers. A cleaning shaft is connected to the output end of the motor. The cleaning shaft is located below the front end of multiple round tubes. The other end of the cleaning shaft is mounted on another hanger via a bearing. Multiple cleaning blades are arranged at intervals on the cleaning shaft. The outer edges of the cleaning blades are inserted between the front ends of two adjacent round tubes to facilitate cleaning the material.

4. The walnut shelling and sorting production line according to claim 3, characterized in that: The cleaning blade is windmill-shaped.

5. The walnut shelling and sorting production line according to claim 1, characterized in that: The first multi-layer grading screen includes an upper screen body and a lower screen body. Within the frame of the upper screen body, there are front-to-back arranged lead-through screen plates and powder screen plates. The diameter of the screen holes on the powder screen plates is much smaller than that of the lead-through screen plates. Within the frame, below the powder screen plates, there is a receiving plate, and at the front end of the receiving plate, there is a powder chute. The powder chute extends from one side of the lower screen body and is used to screen out fine powder. Within the frame, at the front end of the lead-through screen plates, there is a lead-through chute. The lead-through chute extends from one side of the upper screen body and is used to screen out lead-through materials. The lower screen body is equipped with two screen plates and a bottom plate arranged vertically. At the front end of the two screen plates and the bottom plate, there are discharge nozzles and guide troughs, which are used to screen out the second and third materials respectively.

6. A walnut shelling and sorting production line according to claim 5, characterized in that: in Inside the frame of the upper screen body, below the first-pass screen and the powder screen, there is a grid frame. A screen is installed on the bottom surface of the grid frame, and multiple rubber balls are installed in each grid of the grid frame to follow the vibration of the upper screen body and impact the first-pass screen and the powder screen, so as to prevent the screen holes of the first-pass screen and the powder screen from clogging.

7. The walnut shelling and sorting production line according to claim 6, characterized in that: A grid frame is also provided inside the frame of the lower screen body, below the second-stage screen plates. A screen is provided on the bottom surface of the grid frame, and multiple rubber balls are provided in each grid of the grid frame to follow the vibration of the lower screen body and impact the second-stage screen plates, preventing the screen holes of the second-stage screen plates from becoming clogged.

8. A walnut shelling and sorting production line according to any one of claims 1-7, characterized in that: The production line is also equipped with a three-stage dehulling machine and a three-stage elevator. Below the two-stage dehulling machine is a second material feeder, which has the same structure as the first material feeder. One end of the outlet of the second material feeder is connected to the inlet of the three-stage elevator through a chute, and is used to screen out the shelled kernel material after the two-stage dehulling machine from entering the three-stage dehulling machine.

9. A walnut shelling and sorting production line according to claim 8, characterized in that: A second multi-layer grading screen is provided horizontally below the second distributor. It has the same structure as the first multi-layer grading screen and is used to screen the material falling through the second distributor and after being deshelled by the three deshellers, and to separate the first, second, and third channels and fine powder.

10. A walnut shelling and sorting production line according to claim 9, characterized in that: The production line is also equipped with parallel-arranged first-path conveyor belt mechanism, second-path conveyor belt mechanism and third-path conveyor belt mechanism. The first-path chute, discharge nozzle and guide chute outlet of the first multi-layer grading screen and the second multi-layer grading screen are respectively located above the first-path conveyor belt mechanism, second-path conveyor belt mechanism and third-path conveyor belt mechanism, so as to output the first, second and third path materials respectively.

Images