A vibration sieve for separating chestnut shell and kernel

Abstract

The utility model relates to agricultural product processing equipment technical field, concretely relates to a chestnut shell kernel separation vibrating screen, including screening box, the inner wall of screening box is fixedly installed with two symmetrical mesh screen of up and down, the discharge end of mesh screen is provided with the discharge pipe, the discharge pipe is fixedly installed on the screening box, the left and right side plate body of screening box is all fixedly installed with vibration motor, the bottom of screening box is detachably installed with the discharge hopper, the bottom of discharge hopper is fixedly installed with the vertical pipe of vertical setting, the bottom of screening box is provided with a plurality of support leg assemblies, the support leg assembly includes the guide pillar fixedly installed on the bottom surface of screening box and the support sleeve sleeved on the outside of guide pillar, and the guide pillar is slidably connected with the support sleeve, the spring is arranged in the support sleeve, and the side plate body of screening box is provided with the cleaning hole, the utility model is convenient for shell kernel separation operation, and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, specifically to a chestnut shell and kernel separation vibrating screen. Background Technology

[0002] Chestnuts are a nutritious nut that is loved by consumers. During the processing of chestnuts, the shelled chestnuts are often mixed with broken shell pieces and whole kernels, so shell-kernel separation is required to obtain pure chestnut kernels.

[0003] Currently, chestnut shell and kernel separation is mostly done manually or with simple screening equipment. Manual screening is inefficient, labor-intensive, and the separation effect is greatly affected by the operator's skill level, making it difficult to guarantee separation accuracy.

[0004] Simple screening equipment is usually a single-layer vibrating screen, which separates chestnuts using only a screen with a single aperture. Because chestnut shells vary in size, some smaller shells may slip through along with the kernels, resulting in incomplete separation and requiring secondary processing, which increases processing costs and time. Therefore, we propose a vibrating screen for separating chestnut shells and kernels. Utility Model Content

[0005] The purpose of this invention is to provide a chestnut shell and kernel separation vibrating screen to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vibrating screen for separating chestnut shells and kernels includes a screening box. Two symmetrical mesh screens are fixedly installed on the inner wall of the screening box. A discharge pipe is provided at the discharge end of each mesh screen and is fixedly installed on the screening box. Vibrating motors are fixedly installed on both the left and right side plates of the screening box. A discharge hopper is detachably installed at the bottom of the screening box, and a vertically arranged vertical pipe is fixedly installed at the bottom end of the discharge hopper. Multiple support leg assemblies are provided at the bottom of the screening box. Each support leg assembly includes a guide post fixedly installed on the bottom surface of the screening box and a support sleeve fitted over the guide post. The guide post and the support sleeve are slidably connected. A spring is installed inside the support sleeve. A cleaning hole is provided on one side plate of the screening box.

[0008] Preferably, a feed pipe is fixedly installed on the top of the screening box, and a feed hopper is fixedly installed on the top of the feed pipe;

[0009] Preferably, a feed valve is fixedly installed on the feed pipe, and the feed pipe is located near the feed end of the upper mesh screen;

[0010] The above two settings facilitate feeding and control of the feed rate.

[0011] Preferably, the mesh screen is a mesh-like plate structure, and the mesh screen is inclined downward at 5~15°, with the upper and lower mesh screens inclined in opposite directions;

[0012] This setting allows for two sieving operations on chestnut shells and kernels: the upper mesh screen blocks the chestnut shells, the lower mesh screen blocks the chestnut kernels, and smaller chestnut shell fragments continue to fall down along the lower mesh screen.

[0013] Preferably, a sealing cover plate is hinged to the wall of the cleaning hole, and the free end of the sealing cover plate is fixedly connected to the screening box by fastening screws.

[0014] Preferably, a bottom funnel cover is fixedly installed at the bottom end of the screening box, a fixing plate is fixedly installed on the side of the bottom funnel cover, and a bolt plate is fixedly installed on the top of the discharge hopper. The bolt plate and the fixing plate are fixedly connected by multiple fastening screws.

[0015] This feature facilitates the installation, disassembly, and cleaning of the discharge hopper.

[0016] Preferably, the plane containing the inner wall of the bottom funnel cover is inclined downward at 30° to 60°, and the inclination angle of the discharge hopper is the same as that of the bottom funnel cover.

[0017] Preferably, the support sleeve has an inner cavity with its top communicating with the outside. A slider is fixedly installed at the bottom end of the guide post. The slider is located in the inner cavity and is slidably connected to the inner cavity. A fixed base is fixedly installed at the bottom end of the support sleeve. The fixed base is fixedly installed on the outer base. The two ends of the spring are respectively fixedly installed on the bottom wall of the inner cavity and the slider.

[0018] This feature prevents the guide post from slipping out and ensures more effective vibration transmission.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model sets up two mesh screens with opposite inclinations inside the screening box. With the help of a vibrating motor, the screening box vibrates. The upper mesh screen blocks the chestnut shells, and the lower mesh screen blocks the chestnut kernels. This achieves two screenings of chestnut shells and kernels, preventing smaller shell pieces from falling through with the kernels, thus achieving more thorough separation and reducing secondary processing.

[0021] 2. This utility model facilitates the cleaning and maintenance of the mesh screen through the cleaning hole and sealing cover on one side of the screening box. The feed valve on the feed pipe can control the feed amount. The detachable connection between the discharge hopper and the bottom funnel cover facilitates the cleaning of debris. This realizes the convenience of equipment operation and maintenance, and achieves the effect of reducing labor intensity and improving work efficiency.

[0022] 3. This utility model uses the guide column, support sleeve and spring in the support leg assembly to effectively buffer the screening box when it vibrates, ensuring stable vibration transmission. At the same time, the fixed base enhances the overall stability of the equipment and prevents displacement during vibration, thereby improving the stability of equipment operation and extending its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0025] Figure 3 This is the second partial structural schematic diagram of this utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Screening box; 10. Mesh screen; 11. Discharge pipe; 12. Feed pipe; 121. Feed valve; 13. Feed hopper; 14. Cleaning hole; 141. Sealing cover; 15. Vibrating motor; 16. Bottom funnel cover; 161. Fixing plate; 17. Discharge hopper; 171. Bolt plate; 18. Vertical pipe;

[0028] 2. Support leg assembly; 20. Support sleeve; 201. Inner chamber; 21. Spring; 22. Fixed base; 23. Guide post; 24. Slider. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-3This utility model provides a technical solution: a chestnut shell and kernel separation vibrating screen, including a screening box 1. Two symmetrical mesh screens 10 are fixedly installed on the inner wall of the screening box 1. A discharge pipe 11 is provided at the discharge end of the mesh screen 10 and is fixedly installed on the screening box 1. Vibrating motors 15 are fixedly installed on the left and right side plates of the screening box 1. A discharge hopper 17 is detachably installed at the bottom of the screening box 1, and a vertically arranged vertical pipe 18 is fixedly installed at the bottom end of the discharge hopper 17. The mesh screen 10 has a mesh-like plate structure and is set at a downward inclination of 5~15°. The upper and lower mesh screens 10 are inclined in opposite directions, which can perform two screening operations on chestnut shells and kernels. The upper mesh screen 10 blocks chestnut shells, and the lower mesh screen 10 blocks chestnut kernels. Smaller chestnut shell fragments continue to fall down along the lower mesh screen 10. The screened shells and kernels can be discharged through the corresponding discharge pipe 11, and smaller fragments can be discharged through the vertical pipe 18.

[0031] like Figure 1 and Figure 3 As shown, the bottom of the screening box 1 is provided with multiple support leg assemblies 2. The support leg assembly 2 includes a guide post 23 fixedly installed on the bottom surface of the screening box 1 and a support sleeve 20 sleeved on the outside of the guide post 23. The guide post 23 and the support sleeve 20 are slidably connected. A spring 21 is provided inside the support sleeve 20. A cleaning hole 14 is provided on one side plate of the screening box 1. This setting has the effect of stabilizing support.

[0032] like Figure 1 As shown, a feed pipe 12 is fixedly installed on the top of the screening box 1, and a feed hopper 13 is fixedly installed on the top of the feed pipe 12. A feed valve 121 is fixedly installed on the feed pipe 12. The feed pipe 12 is located near the feed end of the upper mesh screen 10, so that the feed pipe 12 is aligned with the feed end of the upper mesh screen 10. The feed valve 121 controls the feed amount, which facilitates stable feeding and prevents material accumulation from affecting screening.

[0033] like Figure 1 As shown, a sealing cover plate 141 is hinged to the wall of the cleaning hole 14. A sealing gasket is provided on the inner side of the sealing cover plate 141 to improve the sealing effect. The free end of the sealing cover plate 141 is fixedly connected to the screening box 1 by fastening screws, so that the residual impurities on the mesh screen 10 can be cleaned by opening the sealing cover plate 141. The fastening screws ensure the seal during screening and improve the convenience of maintenance.

[0034] like Figure 1 and Figure 2As shown, a bottom funnel cover 16 is fixedly installed at the bottom of the screening box 1, and a fixing plate 161 is fixedly installed on the side of the bottom funnel cover 16. A bolt plate 171 is fixedly installed on the top of the discharge hopper 17. The bolt plate 171 and the fixing plate 161 are fixedly connected by multiple fastening screws. The plane of the inner wall of the bottom funnel cover 16 is inclined downward at 30°~60°. The inclination angle of the discharge hopper 17 is the same as that of the bottom funnel cover 16, so that fine shells fall smoothly into the discharge hopper 17 and are discharged through the vertical pipe 18. The discharge hopper 17 is also easy to disassemble and clean.

[0035] It is worth noting that the support sleeve 20 is provided with an inner chamber 201 that is connected to the outside at the top. A slider 24 is fixedly installed at the bottom end of the guide column 23. The slider 24 is located in the inner chamber 201 and is slidably connected to the inner chamber 201. A fixed base 22 is fixedly installed at the bottom end of the support sleeve 20. The fixed base 22 is fixedly installed on the external base. The two ends of the spring 21 are respectively fixedly installed on the bottom wall of the inner chamber 201 and the slider 24, so that the guide column 23 slides in the support sleeve 20. The slider 24 prevents the guide column 23 from sliding out. The fixed base 22 enhances stability and ensures that the vibration of the screening box 1 is efficient and stable.

[0036] Finally, it should be noted that the vibration motor 15, the corresponding control system, and the external power supply involved in this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0037] When using the chestnut shell and kernel separating vibrating screen of this utility model, the equipment is installed on the base through the fixed base 22 of the support leg assembly 2. Ensure that the spring 21 and guide column 23 in the support sleeve 20 are in normal condition. Open the sealing cover 141 on one side of the screening box 1 and check whether the upper and lower mesh screens 10 are installed firmly. Then close the sealing cover 141 and tighten the fastening screws.

[0038] Open the feed valve 121 on the feed pipe 12 and pour the chestnut shell and kernel mixture to be separated into the feed hopper 13. The mixture falls through the feed pipe 12 onto the feed end of the mesh screen 10 above. Start the vibration motors 15 on both sides of the screening box 1. At this time, vibration will be generated to screen.

[0039] Under the action of vibration, the chestnut shells on the upper mesh screen 10 are discharged from the corresponding discharge pipe 11 along the inclined surface, the chestnut kernels and small shell fragments fall into the lower mesh screen 10, the chestnut kernels are discharged from another discharge pipe 11 along the inclined surface of the lower mesh screen 10, and the small shell fragments enter the discharge hopper 17 through the bottom funnel cover 16 and are finally discharged from the vertical pipe 18.

[0040] After screening, turn off the vibration motor 15 and the feed valve 121, remove the discharge hopper 17 to clean the residual debris, open the sealing cover 141 to clean the mesh screen 10, and complete the entire operation process.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen for separating chestnut shells and kernels, comprising a screening box (1), characterized in that: The inner wall of the screening box (1) is fixedly installed with two symmetrical mesh screens (10). The discharge end of the mesh screen (10) is provided with a discharge pipe (11). The discharge pipe (11) is fixedly installed on the screening box (1). Vibration motors (15) are fixedly installed on the left and right side plates of the screening box (1). The bottom of the screening box (1) is detachably installed with a discharge hopper (17). The bottom end of the discharge hopper (17) is fixedly installed with a vertically arranged vertical pipe (18). The bottom of the screening box (1) is provided with a plurality of support leg assemblies (2). The support leg assembly (2) includes a guide post (23) fixedly installed on the bottom surface of the screening box (1) and a support sleeve (20) sleeved on the outside of the guide post (23). The guide post (23) and the support sleeve (20) are slidably connected. A spring (21) is provided inside the support sleeve (20). A cleaning hole (14) is provided on one side plate of the screening box (1). The upper and lower mesh screens (10) are inclined in opposite directions.

2. The chestnut shell and kernel separating vibrating screen according to claim 1, characterized in that: The top of the screening box (1) is fixedly installed with a feed pipe (12), and the top of the feed pipe (12) is fixedly installed with a feed hopper (13).

3. The chestnut shell and kernel separating vibrating screen according to claim 2, characterized in that: A feed valve (121) is fixedly installed on the feed pipe (12), and the feed pipe (12) is located at the feed end of the mesh screen (10) above.

4. The chestnut shell and kernel separating vibrating screen according to claim 1, characterized in that: The mesh screen (10) is a mesh-like plate structure, and the mesh screen (10) is set at a downward inclination of 5~15°.

5. The chestnut shell and kernel separating vibrating screen according to claim 1, characterized in that: A sealing cover plate (141) is hinged to the wall of the cleaning hole (14), and the free end of the sealing cover plate (141) is fixedly connected to the screening box (1) by fastening screws.

6. The chestnut shell and kernel separating vibrating screen according to claim 1, characterized in that: The bottom of the screening box (1) is fixedly installed with a bottom funnel cover (16), and a fixing plate (161) is fixedly installed on the side of the bottom funnel cover (16). The top of the discharge hopper (17) is fixedly installed with a bolt plate (171), and the bolt plate (171) and the fixing plate (161) are fixedly connected by multiple fastening screws.

7. The chestnut shell and kernel separating vibrating screen according to claim 6, characterized in that: The inner wall of the bottom funnel cover (16) is inclined downward at a plane of 30°~60°, and the inclination angle of the unloading hopper (17) is the same as that of the bottom funnel cover (16).

8. The chestnut shell and kernel separating vibrating screen according to claim 1, characterized in that: The support sleeve (20) has an inner cavity (201) with its top connected to the outside. A slider (24) is fixedly installed at the bottom end of the guide post (23). The slider (24) is located in the inner cavity (201) and is slidably connected to the inner cavity (201). A fixed base (22) is fixedly installed at the bottom end of the support sleeve (20). The fixed base (22) is fixedly installed on the external base. The two ends of the spring (21) are fixedly installed on the bottom wall of the inner cavity (201) and the slider (24), respectively.

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