Vibration screening device for cumin processing

Abstract

The utility model discloses a vibration screening device for cumin processing, which belongs to the technical field of cumin processing and comprises a vibration screening shell, a detachable top cover mounted on the top surface of the vibration screening shell and a feed hopper longitudinally penetrating through the top surface of the detachable top cover. A lifting vibration screen box is arranged in the vibration stroke groove through a plurality of longitudinal positioning vertical rods, a rotating shaft is rotationally arranged below the lifting vibration screen box and located in the vibration stroke groove, and a plurality of eccentric wheel discs which are arranged in a crossed mode are fixed to the peripheral side of the rotating shaft at equal intervals. The eccentric end of the eccentric wheel disc abuts against the bottom face of the lifting vibrating screen box, the peripheral side of the rotating shaft is connected with a rotating rod longitudinally penetrating through an inner cavity of the lifting vibrating screen box through a bevel gear assembly and a universal joint which are meshed together, an anti-blocking stirring rod is arranged at the top end of the rotating rod, and stirring blades are arranged at the bottom end of the rotating rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of cumin processing, in particular to a vibration screening device used for cumin processing. Background Art

[0002] Cumin powder is mainly made by mixing and grinding fennel with spices such as star anise and cinnamon. Cumin powder has a very unique taste and flavor, rich in oil, and has a strong and fragrant smell. It is mainly used for seasoning. It is a must-have condiment for roasted and baked foods, and it is also one of the main raw materials for preparing curry powder. The existing cumin raw materials have a lot of impurities in the processing process, so they need to be screened by a vibrating screen. However, the current vibrating screen can generally only vibrate but cannot be lifted or lowered. At the same time, it cannot stir and prevent the screened cumin raw materials, causing the cumin raw materials to block the screen and the feed pipe, reducing the screening efficiency.

[0003] After searching, the existing Chinese patent publication number: CN211755435U is a vibrating screening device for cumin processing, including a bottom plate, a support plate is fixedly installed on the top of the bottom plate, a screening box is fixedly connected to the right end of the support plate, a feed port is opened on the upper surface of the screening box, two driving motors are fixedly installed on the inner wall of the screening box, a crushing gear is fixedly sleeved on the surface of the driving motor, and the two crushing gears are meshed with each other.

[0004] The cited patent documents also have the same problem. Generally, they can only vibrate but cannot perform lifting and lowering vibration. At the same time, they cannot stir the screened cumin raw materials to prevent clogging, causing the cumin raw materials to clog the screen and the feed pipe, reducing the screening efficiency. Utility Model Content

[0005] The utility model aims to provide a vibration screening device for cumin processing to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vibration screening device for cumin processing, comprising a vibration screening shell, a detachable top cover installed on the top surface thereof, and a feed hopper longitudinally penetrating the top surface of the detachable top cover, the inner cavity of the vibration screening shell is provided with a vibration stroke groove, and a lifting vibration screen box is provided in the vibration stroke groove through a plurality of longitudinal positioning vertical rods;

[0007] A rotating shaft is arranged below the lifting vibration screen box and is located in the vibration stroke groove for rotation. A plurality of cross-arranged eccentric discs are fixed equidistantly on the circumference of the rotating shaft. The eccentric ends of the eccentric discs abut against the bottom surface of the lifting vibration screen box. A rotating rod that longitudinally penetrates into the inner cavity of the lifting vibration screen box is connected to the circumference of the rotating shaft through a bevel gear assembly and a universal joint that mesh with each other. An anti-blocking stirring rod is arranged on the top end of the rotating rod, and a stirring blade is arranged on the bottom end of the rotating rod.

[0008] Preferably, the bevel gear assembly comprises a first bevel gear interference-fitted on the circumferential side of the rotating shaft and a second bevel gear meshing with each other;

[0009] A connecting shaft connected to a universal joint is fixed on the back side of the second bevel gear.

[0010] Preferably, a sealed bearing is interference-fitted on the top circumference of the rotating rod, and the sealed bearing is embedded in the mesh member at the inner bottom of the lifting vibration screen box;

[0011] The bottom surface of the anti-blocking stirring rod abuts against the mesh piece at the inner bottom of the lifting vibration screen box.

[0012] Preferably, a stirring shaft extending into the stirring chamber of the inner cavity of the vibration screening shell is welded to the bottom end of the rotating rod;

[0013] The plurality of stirring blades are symmetrically mounted on the outer wall around the bottom end of the stirring shaft.

[0014] Preferably, both ends of the rotating shaft are connected to the inner wall of the vibration stroke groove through ball bearings, a servo motor is fixedly mounted on the outer wall of the vibration screening shell, and the output shaft of the servo motor passes through the vibration screening shell and is fixedly connected to the rotating shaft.

[0015] Preferably, a negative pressure discharge pump is fixedly installed at the bottom end of the vibration screening shell, and the negative pressure discharge pump is connected to the bottom end of the stirring chamber through a discharge pipe.

[0016] Preferably, the plurality of longitudinal positioning uprights symmetrically and longitudinally penetrate the lifting vibration screen box respectively, and the longitudinal positioning uprights are fixedly and longitudinally installed in the vibration stroke groove.

[0017] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0018] The vibration screening device for cumin processing realizes the lifting vibration screening of cumin raw materials by adding a vibration stroke slot and a lifting vibration screen box in the vibration screening shell, breaking through the limitation of the prior art that it can only perform horizontal or vertical vibration, enhancing the screening effect, reducing the problem of easy clogging of the screen, and improving the screening efficiency; the anti-blocking stirring rod at the top of the rotating rod and the stirring blade design on the stirring half shaft at the bottom can continuously stir the raw materials during the screening process, effectively preventing the easy clogging of the screen and the clogging of the feed pipe, ensuring that the screening process is smooth and unblocked, and further improving the stability and processing capacity of the screening equipment;

[0019] Through the sophisticated connection of the bevel gear assembly and the universal joint, the rotational motion of the servo motor is successfully converted into the lifting vibration of the screen and the effective rotation of the stirring half rod, making the power transmission more efficient. At the same time, it also ensures smooth switching between the two functions of vibration and stirring without the need for an additional power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the connection state of the lifting vibration screen box and the eccentric wheel disc of the utility model;

[0023] Figure 3 It is a schematic diagram of the connection structure of the universal joint of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation of the lifting vibration screen box of the utility model in the vibration stroke groove.

[0025] Description of reference numerals:

[0026] In the figure: 1. Vibration screening shell; 2. Removable top cover; 3. Feed hopper; 4. Inspection and disassembly plate; 5. Servo motor; 6. Feeding pipe; 7. Concave cavity; 8. Locking bolt; 9. Rotating shaft; 10. Eccentric wheel; 11. Ball bearing; 12. Lifting vibration screen box; 13. Longitudinal positioning pole; 14. Anti-blocking stirring rod; 15. First bevel gear; 16. Second bevel gear; 17. Universal joint; 18. Rotating rod; 19. Sealed bearing; 20. Stirring shaft; 21. Stirring blade; 22. Vibration stroke groove; 23. Stirring chamber; 24. Negative pressure discharge pump. DETAILED DESCRIPTION

[0027] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0028] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0029] This embodiment discloses Figures 1 to 4 A vibration screening device for cumin processing shown in the figure includes a vibration screening shell 1 and a removable top cover 2 installed on the top surface thereof and a feed hopper 3 longitudinally penetrating the top surface of the removable top cover 2. The outer wall of the vibration screening shell 1 is installed with an inspection and disassembly plate 4 by bolts. The inner cavity of the vibration screening shell 1 is provided with a vibration stroke groove 22. A lifting vibration screen box 12 is provided in the vibration stroke groove 22 through a plurality of longitudinal positioning vertical rods 13. The plurality of longitudinal positioning vertical rods 13 symmetrically penetrate the lifting vibration screen box 12 longitudinally respectively, and the longitudinal positioning vertical rods 13 are fixedly and longitudinally installed in the vibration stroke groove 22.

[0030] Specifically, a rotating shaft 9 is rotated below the lifting vibration screen box 12 and located in the vibration stroke groove 22. A plurality of cross-arranged eccentric wheel discs 10 are fixed equidistantly on the circumference of the rotating shaft 9. The eccentric ends of the eccentric wheel discs 10 abut against the bottom surface of the lifting vibration screen box 12. The two ends of the rotating shaft 9 are connected to the inner wall of the vibration stroke groove 22 through ball bearings 11. The outer wall of the vibration screening shell 1 is fixedly installed with a servo motor 5 through a locking bolt 8. The output shaft of the servo motor 5 passes through the vibration screening shell 1 and is fixedly connected to the rotating shaft 9.

[0031] Specifically, the rotating shaft 9 is installed in the vibration stroke groove 22 and can rotate freely. A plurality of eccentric wheel discs 10 are fixed on its circumferential side. When the servo motor 5 drives the rotating shaft 9 to rotate, the eccentric wheel disc 10 acts on the bottom surface of the lifting and vibrating screen box 12 through its eccentric end, so that the screen box generates lifting vibration in the vibration stroke groove 22. This can not only enable the material to be screened more comprehensively, but also avoid the screen from being easily blocked.

[0032] Specifically, the circumferential side of the rotating shaft 9 is connected with a rotating rod 18 which penetrates longitudinally into the inner cavity of the lifting vibration screen box 12 through a bevel gear assembly and a universal joint 17 which are meshed with each other. The top of the rotating rod 18 is provided with an anti-blocking stirring rod 14, and the bottom end of the rotating rod 18 is provided with a stirring blade 21. The bevel gear assembly includes a first bevel gear 15 which is interference fit on the circumferential side of the rotating shaft 9 and a second bevel gear 16 which is meshed with each other. A connecting shaft connected to the universal joint 17 is fixed on the back of the second bevel gear 16. A sealed bearing 19 is interference fit on the circumferential side of the top of the rotating rod 18. The sealed bearing 19 is embedded in the mesh of the inner bottom of the lifting vibration screen box 12. The bottom surface of the anti-blocking stirring rod 14 abuts against the mesh of the inner bottom of the lifting vibration screen box 12. The bottom end of the rotating rod 18 is welded with a stirring shaft 20 in a stirring chamber 23 which extends into the inner cavity of the vibration screening shell 1, and a plurality of stirring blades 21 are symmetrically installed on the outer wall of the bottom circumferential side of the stirring shaft 20.

[0033] Specifically, in the transmission system of the rotating shaft 9, power is transmitted to the rotating rod 18 through the push gear assembly and the universal joint 17. The rotating rod 18 penetrates into the inner cavity of the lifting and vibrating screen box 12. When the rotating rod 18 is driven to rotate, the anti-blocking stirring rod 14 and the stirring blade 21 can stir the cumin raw materials during the screening process, effectively preventing the screen and the feed pipe from being blocked.

[0034] Specifically, the universal joint 17 is a device for realizing variable-angle power transmission. In this application scenario, it connects the rotating shaft 9 and the rotating rod 18, allowing a certain angle change between the two. Even if the axes of the rotating shaft 9 and the rotating rod 18 are not completely parallel or vertical, the power transmitted by the servo motor 5 through the bevel gear assembly can be smoothly transmitted to ensure that the rotation of the rotating shaft can effectively drive the rotating rod 18 to rotate synchronously.

[0035] Specifically, since the vibration screening device may generate vibration and swing during operation, the universal joint 17 can adapt to such dynamic changes, ensuring that even when the internal structure of the vibration screening shell 1 moves relatively, the power transmission is still stable and reliable, and the transmission will not fail or get stuck due to vibration.

[0036] Specifically, through the connection of the universal joint 17, the rotating shaft 9 can drive the rotating rod 18 to rotate freely within a certain range through its own rotation, so that the anti-blocking stirring rod 14 and the stirring blade 21 can perform stirring actions at different angles and directions according to needs, effectively preventing the screen from being easily blocked and improving the screening efficiency.

[0037] Specifically, the bottom end of the vibration screening shell 1 has a concave cavity 7, in which a negative pressure discharge pump 24 is fixedly installed by bolts, and the negative pressure discharge pump 24 is connected to the bottom end of the stirring chamber 23 through a discharge pipe 6.

[0038] Specifically, a PLC for controlling the opening and closing of each device is provided in a distribution box (not shown) outside the vibration screening shell 1. The PLC model can be selected according to actual needs. In the utility model, the PLC model is S7-200, which has the advantages of high reliability, strong anti-interference ability and convenient maintenance.

[0039] Working principle:

[0040] In the vibration screening device for cumin processing, when the servo motor 5 is started, its output shaft drives the rotating shaft 9 to rotate. As the rotating shaft rotates, the eccentric wheel 10 on the rotating shaft 9 periodically pushes the lifting vibration screen box 12 to perform lifting and vibration in the vibration stroke groove 22 due to its eccentric design. The cumin raw material is subjected to strong vibration in the screen box, so that particles of different sizes are graded and screened according to the size of the screen hole.

[0041] The rotating shaft 9 transmits power to the rotating rod 18 through the bevel gear assembly and the universal joint 17, so that the rotating rod 18 and the anti-blocking stirring rod 14 and the stirring blade 21 connected thereto rotate together. The anti-blocking stirring rod 14 stirs at the bottom of the lifting vibration screen box 12 to prevent the accumulation of fine particles and block the screen, while the stirring blade 21 further stirs in the stirring chamber 23, which helps to loosen the material, improve the screening efficiency, and prevent the discharge pipe 6 from being blocked;

[0042] The screened cumin raw material passes through the stirring chamber 23 at the bottom of the vibration screening shell 1 and is evenly dispersed under the action of the stirring blades 21, and then is pumped out through the discharge pipe 6 by the negative pressure discharge pump 24, completing the collection of the screened material.

[0043] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibrating screening device for cumin processing, comprising a vibrating screening housing (1), a detachable top cover (2) mounted on the top surface thereof, and a feed hopper (3) longitudinally penetrating the top surface of the detachable top cover (2), characterized in that: The inner cavity of the vibration screening shell (1) is provided with a vibration travel groove (22), and a lifting vibration screen box (12) is provided in the vibration travel groove (22) via a plurality of longitudinal positioning uprights (13); A rotating shaft (9) is disposed below the lifting vibration screen box (12) and in the vibration stroke groove (22), and a plurality of cross-arranged eccentric discs (10) are fixed at equal intervals on the circumference of the rotating shaft (9), and the eccentric ends of the eccentric discs (10) abut against the bottom surface of the lifting vibration screen box (12). A rotating rod (18) that longitudinally penetrates the inner cavity of the lifting vibration screen box (12) is connected to the circumference of the rotating shaft (9) through a bevel gear assembly and a universal joint (17) that mesh with each other, and an anti-blocking stirring rod (14) is disposed at the top end of the rotating rod (18), and a stirring blade (21) is disposed at the bottom end of the rotating rod (18).

2. A vibrating screening device for cumin processing according to claim 1, characterized in that: The bevel gear assembly comprises a first bevel gear (15) which is interference-fitted on the circumference of the rotating shaft (9) and a second bevel gear (16) which meshes with each other; A connecting shaft connected to a universal joint (17) is fixed on the back side of the second bevel gear (16).

3. A vibrating screening device for cumin processing according to claim 2, characterized in that: A sealed bearing (19) is interference-fitted around the top of the rotating rod (18), and the sealed bearing (19) is embedded and connected to the mesh member at the inner bottom of the lifting vibration screen box (12); The bottom surface of the anti-blocking stirring rod (14) abuts against the mesh at the inner bottom of the lifting vibration screen box (12).

4. A vibrating screening device for cumin processing according to claim 3, characterized in that: A stirring shaft (20) extending into a stirring chamber (23) in the inner cavity of the vibration screening shell (1) is welded to the bottom end of the rotating rod (18); The plurality of stirring blades (21) are symmetrically mounted on the outer wall around the bottom end of the stirring shaft (20).

5. A vibrating screening device for cumin processing according to claim 4, characterized in that: Both ends of the rotating shaft (9) are connected to the inner wall of the vibration travel groove (22) via ball bearings (11); a servo motor (5) is fixedly mounted on the outer wall of the vibration screening housing (1); and an output shaft of the servo motor (5) passes through the vibration screening housing (1) and is fixedly connected to the rotating shaft (9).

6. A vibrating screening device for cumin processing according to claim 5, characterized in that: A negative pressure discharge pump (24) is fixedly mounted on the bottom end of the vibration screening housing (1), and the negative pressure discharge pump (24) is connected to the bottom end of the stirring chamber (23) through a discharge pipe (6).

7. A vibrating screening device for cumin processing according to claim 6, characterized in that: The plurality of longitudinal positioning uprights (13) respectively and symmetrically penetrate the lifting vibration screen box (12) longitudinally, and the longitudinal positioning uprights (13) are fixedly and longitudinally installed in the vibration stroke groove (22).

Images