Multistage screening device for dried walnuts
By designing a multi-stage screening device and using a combination of mesh plates and stirring plates, multi-stage screening of dried walnuts is achieved, which solves the problems of time-consuming, labor-intensive and insufficient precision of traditional screening and realizes efficient automated screening.
Patent Information
- Application Number
- CN202422552246.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The traditional walnut dried fruit screening method relies on manual operation, which is time-consuming and labor-intensive, with poor screening accuracy and consistency. In addition, most existing equipment can only perform one screening, making it difficult to achieve multi-stage screening.
A multi-stage screening device is designed, which includes a vertical screening cylinder with multiple mesh plates installed on the inner wall. The aperture of the mesh plates gradually decreases. The sealing plate and the stirring plate are controlled by a cylinder to achieve multi-stage screening and unloading.
It achieves efficient and automated multi-stage screening, improves screening accuracy and consistency, reduces manual intervention, and improves screening efficiency.
Smart Images
Figure CN223367426U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of walnut dried fruit screening devices, in particular to a multi-stage screening device for walnut dried fruit. Background Art
[0002] Walnuts, as a nut food that is rich in nutrients and deeply loved by people, the screening process of their processing is particularly critical. The screening of walnut dried fruits is not only related to the quality of the product, but also directly affects the efficiency and cost of subsequent processing. However, the traditional walnut dried fruit screening method often relies on manual operation, judging the size and quality of the walnuts by visual and tactile feel, and then grading them. This method is not only time-consuming and labor-intensive, but the screening results are greatly affected by human factors, making it difficult to ensure screening accuracy and consistency.
[0003] Currently, in order to achieve efficient screening, equipment such as vibrating screens and drum screens are usually used for screening operations. However, most vibrating screens and drum screens can only perform a single screening operation when in use, resulting in defects such as a limited number of screening stages and low screening accuracy. This is not conducive to achieving the effect of multi-stage screening, and will affect the consistency of the screened dried walnuts, causing inconvenience to users. In view of this, we propose a multi-stage screening device for dried walnuts. Utility Model Content
[0004] The purpose of the utility model is to provide a multi-stage screening device for walnut dried fruits to solve the defects proposed in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] The sieve of claim 1, wherein the sieve has an inner wall that is fixed with a plurality of mesh plates arranged at equal intervals in a vertical direction, the apertures of the through holes in the plurality of mesh plates decreasing from top to bottom. The mesh plates are provided with blanking holes radially arranged along the mesh plates, the bottom of the mesh plates are fixedly provided with a discharge pipe connected to the blanking holes, the discharge pipe passes through the sieve drum, a cylinder is fixedly provided on the top surface of the end tube body of the discharge pipe, a sealing plate is provided on the telescopic shaft of the cylinder, the sealing plate passes through the sieve drum and is slidably connected between the blanking holes, a support frame is fixedly installed on the top plate body of the support frame, a driving motor is fixedly installed on the top plate body of the support frame, and a vertically arranged long shaft is fixedly installed on the end of the output shaft of the driving motor, and a plurality of stirring plates arranged at equal intervals are fixedly installed on the long shaft, and the stirring plates are located above the corresponding mesh plates.
[0007] Preferably, the top of the screening drum is in communication with the outside, and a plurality of supporting legs arranged in a ring shape with equal intervals are fixedly mounted on the bottom of the screening drum.
[0008] Preferably, a discharge hopper is fixedly installed at the bottom of the screening drum, and a vertical pipe is fixedly installed at the bottom end of the discharge hopper.
[0009] Preferably, the distance between the vertical pipe and the ground is greater than 20 cm, and the plane where the inner wall of the discharge hopper is located is set to be inclined downward by 45 degrees to 60 degrees.
[0010] Preferably, a feed hole is provided on the top wall of the end tube body of the discharge pipe, and the feed hole is located directly below the drop hole and is connected to the drop hole.
[0011] Preferably, a first axial hole is provided at the rear end portion of the feed hole, and the long axis passes through the first axial hole.
[0012] Preferably, an arc-shaped limit plate is fixedly mounted on the end of the telescopic shaft of the cylinder, and the blocking plate is fixedly mounted on the side surface of the arc-shaped limit plate.
[0013] Preferably, a second axial hole is provided on the plate body at the rear end portion of the blocking plate, the long axis passes through the second axial hole, and the blocking plate is sleeved on the long axis.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. The utility model is capable of performing multi-stage screening operations on walnut dried fruits in sequence by using multiple mesh plates. In addition, after the screening is completed, as the blocking plate is pulled out and the stirring plate is rotated, the walnut dried fruits on each mesh plate can be driven to be discharged outward along the drop hole and the discharge pipe, thereby achieving the effect of multi-stage screening.
[0016] 2. The utility model can unload the walnuts and dried fruits at the bottom through the unloading hopper and vertical pipe. In addition, the cylinder can be used to drive the blocking plate to move, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the explosion structure of the utility model;
[0019] Figure 3 This is one of the partial structural diagrams of the utility model;
[0020] Figure 4 This is the second schematic diagram of the partial structure of the utility model;
[0021] Figure 5 This is the third schematic diagram of the partial structure of the utility model;
[0022] Figure 6 This is the fourth schematic diagram of the partial structure of the utility model;
[0023] The meaning of each number in the figure is:
[0024] 1. Screening drum; 10. Mesh plate; 101. Dropping hole; 11. Discharge pipe; 111. Feed hole; 112. First shaft hole; 12. Support frame; 13. Drive motor; 14. Long shaft; 15. Stirring plate;
[0025] 2. Cylinder; 20. Arc-shaped limit plate; 21. Blocking plate; 211. Second shaft hole;
[0026] 3. Discharge hopper; 30. Vertical pipe; 31. Support leg. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] See also Figures 1-6 The utility model provides a technical solution: a multi-stage screening device for dried walnuts, comprising a screening cylinder 1 arranged vertically, the top of which is connected to the outside world and is used for the addition operation of dried walnuts;
[0029] Specifically, a plurality of mesh plates 10 are fixedly mounted on the inner wall of the screening drum 1 and are arranged linearly and equidistantly in the vertical direction. The apertures of the through holes in the plurality of mesh plates 10 decrease from top to bottom, thereby realizing a multi-stage screening operation. The mesh plates 10 are provided with blanking holes 101 arranged radially along the mesh plates 10. A discharge pipe 11 connected to the blanking holes 101 is fixedly mounted at the bottom of the mesh plates 10. The discharge pipe 11 passes through the screening drum 1 to realize the discharge operation after the screening is completed.
[0030] Specifically, a cylinder 2 is fixedly mounted on the top surface of the end tube body of the discharge pipe 11, and a blocking plate 21 is provided on the telescopic shaft of the cylinder 2. The blocking plate 21 passes through the screening cylinder 1 and is slidably connected to the drop hole 101. The screening cylinder 1 is provided with a through hole for the blocking plate 21 to pass through and be slidably connected, so that the blocking plate 21 can be used to block the drop hole 101 during the screening process.
[0031] Specifically, a support frame 12 is fixedly installed on the top of the screening drum 1, and a driving motor 13 is fixedly installed on the top plate of the support frame 12. A vertically arranged long shaft 14 is fixedly installed at the end of the output shaft of the driving motor 13, and a plurality of stirring plates 15 arranged at equal intervals are fixedly installed on the long shaft 14. The stirring plates 15 are located above the corresponding mesh plates 10, so that the walnut dried fruits are stirred by the stirring plates 15 to promote screening and unloading operations.
[0032] In this embodiment, the stirring plate 15 moves along the upper surface of the mesh plate 10 to achieve the stirring operation of the walnut dried fruit; a plurality of support legs 31 arranged in a ring with equal intervals are fixedly installed at the bottom of the screening drum 1 to achieve stable support operation using the support legs 31.
[0033] Specifically, a discharge hopper 3 is fixedly installed at the bottom of the screening drum 1, and a vertical pipe 30 is fixedly installed at the bottom end of the discharge hopper 3, so that the discharge operation of the walnut dried fruits with the smallest particle size can be carried out from the vertical pipe 30.
[0034] Furthermore, the distance between the vertical pipe 30 and the ground is greater than 20 cm, and the plane where the inner wall of the discharge hopper 3 is located is set to be inclined downward by 45 degrees to 60 degrees, so that the unloading operation is smoother.
[0035] In addition, a feed hole 111 is provided on the top wall of the end tube body of the discharge pipe 11. The feed hole 111 is located directly below the drop hole 101 and is connected to the drop hole 101, realizing the unloading operation from the drop hole 101 and the discharge pipe 11.
[0036] It is worth noting that a first axial hole 112 is provided at the rear end of the feed hole 111, and the long shaft 14 passes through the first axial hole 112. A second axial hole 211 is provided on the plate body at the rear end of the sealing plate 21, and the long shaft 14 passes through the second axial hole 211. The sealing plate 21 is sleeved on the long shaft 14, so that the long shaft 14 can pass through normally and perform rotation operations.
[0037] It is worth noting that an arc-shaped limit plate 20 is fixedly installed at the end of the telescopic shaft of the cylinder 2, and the blocking plate 21 is fixedly installed on the side of the arc-shaped limit plate 20 by multiple fastening screws, which facilitates the fixed installation operation of the blocking plate 21.
[0038] When the multi-stage screening device for dried walnuts of the present invention is used, the cylinder 2 is first started and made to work. When the cylinder 2 works, the telescopic shaft thereon extends to drive the blocking plate 21 to move. The blocking plate 21 moves to be inserted into the blanking hole 101, thereby blocking the blanking hole 101. Then, the dried walnuts are put into the top of the screening cylinder 1, and the driving motor 13 is connected to the external power supply and made to work. When the driving motor 13 works, the output shaft thereon rotates to drive the long shaft 14 and the stirring plate 15 to rotate, thereby stirring the dried walnuts on the mesh plate 10. During the movement, the dried walnuts that meet the size of the through holes in the corresponding mesh plate 10 can fall down, and the dried walnuts that are larger than the size of the through holes in the mesh plate 10 are blocked on the mesh plate 10. After the screening is completed, the cylinder 2 is started and made to work. When the cylinder 2 works, the telescopic shaft on it shortens and drives the blocking plate 21 to move outward. At this time, the blocking plate 21 no longer blocks the drop hole 101. As the stirring plate 15 rotates, the dried walnuts on the mesh plate 10 can be pushed to fall out from the drop hole 101 along the discharge pipe 11, completing the multi-stage screening operation.
[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. Multi-stage screening device for dried walnuts, characterized by: The invention comprises a screening drum (1) arranged in a vertical shape, wherein a plurality of mesh plates (10) arranged linearly and equidistantly along the vertical direction are fixedly mounted on the inner wall of the screening drum (1), wherein the apertures of the through holes in the plurality of mesh plates (10) decrease from top to bottom, wherein the mesh plates (10) are provided with drop holes (101) arranged radially along the mesh plates (10), wherein a discharge pipe (11) connected to the drop holes (101) is fixedly mounted on the bottom of the mesh plates (10), wherein the discharge pipe (11) passes through the screening drum (1), and a cylinder ( 2), a blocking plate (21) is provided on the telescopic shaft of the cylinder (2), the blocking plate (21) passes through the screening drum (1) and is slidably connected to the blanking hole (101), a support frame (12) is fixedly installed on the top of the screening drum (1), a driving motor (13) is fixedly installed on the top plate of the support frame (12), a long shaft (14) arranged vertically is fixedly installed at the end of the output shaft of the driving motor (13), a plurality of stirring plates (15) arranged at equal intervals are fixedly installed on the long shaft (14), and the stirring plates (15) are located above the corresponding mesh plates (10).
2. The multi-stage screening device for dried walnuts according to claim 1, characterized in that: The top of the screening drum (1) is in communication with the outside world, and a plurality of support legs (31) arranged in a ring shape and at equal intervals are fixedly mounted on the bottom of the screening drum (1).
3. The multi-stage screening device for dried walnuts according to claim 2, characterized in that: A discharge hopper (3) is fixedly mounted on the bottom of the screening drum (1), and a vertical pipe (30) is fixedly mounted on the bottom end of the discharge hopper (3).
4. The multi-stage screening device for dried walnuts according to claim 3, characterized in that: The distance between the vertical pipe (30) and the ground is greater than 20 cm, and the plane where the inner wall of the discharge hopper (3) is located is arranged to be inclined downward by 45 to 60 degrees.
5. The multi-stage screening device for dried walnuts according to claim 1, characterized in that: A feeding hole (111) is provided on the top wall of the end tube body of the discharge pipe (11), and the feeding hole (111) is located directly below the drop hole (101) and is connected to the drop hole (101).
6. The multi-stage screening device for dried walnuts according to claim 5, characterized in that: A first axial hole (112) is provided at the rear end portion of the feed hole (111), and the long shaft (14) passes through the first axial hole (112).
7. The multi-stage screening device for dried walnuts according to claim 1, characterized in that: An arc-shaped limiting plate (20) is fixedly mounted on the end of the telescopic shaft of the cylinder (2), and the blocking plate (21) is fixedly mounted on the side surface of the arc-shaped limiting plate (20).
8. The multi-stage screening device for dried walnuts according to claim 7, characterized in that: A second axial hole (211) is provided on the rear end plate body of the blocking plate (21), the long shaft (14) passes through the second axial hole (211), and the blocking plate (21) is sleeved on the long shaft (14).