Split type lotus seed screening machine

Abstract

The utility model relates to the field of lotus seed processing machines, in particular to a split type lotus seed screening machine which comprises a screen plate assembly and a base, the screen plate assembly comprises at least three layers of screen frames which are sequentially built from top to bottom, each layer of screen frame and the adjacent screen frame are transversely limited through a longitudinal positioning pin, a mesh screen is clamped between every two layers of screen frames, and the mesh screen is arranged on the base. The mesh screen is limited by the positioning pin; a locking structure is arranged on the side edge of the screen plate assembly and used for longitudinally locking all the screen frames and the mesh screen. A vibration motor is fixed to the middle of the bottom side of the sieve plate assembly, the outer ring of the bottom side is connected to the base through a plurality of springs, and an eccentric block with an adjustable balance weight is fixed to the output end of the vibration motor. According to the screen plate assembly, the longitudinal positioning pins and the locking structure are adopted, the split type structure of the screen plate assembly is achieved, the number of screening layers in the screen plate assembly is adjustable, mesh screens with different hole diameters can be conveniently replaced, damaged parts can be independently detached for maintenance, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of lotus seed processing machines, in particular to a split-type lotus seed screening machine. Background Art

[0002] In the process of lotus seed processing, lotus seeds with different apertures are usually mixed together, which is not convenient for targeted processing and often requires manual selection. This workload is large and time-consuming and laborious. With the development of technology, more and more screening machines are applicable to the field of lotus seed processing, and there are already many lotus seed screening machines on the market. However, most of the common lotus seed screening machines are welded and fixed grading screening machines, and their structures at all levels are not convenient for maintenance due to welding fixation, increasing the equipment maintenance cost. Content of the Utility Model

[0003] The purpose of the utility model is to provide a split-type lotus seed screening machine to solve the problems put forward in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A split-type lotus seed screening machine includes a sieve plate assembly and a base. The sieve plate assembly includes at least three layers of sieve frames built from top to bottom. Each layer of the sieve frame is horizontally limited by longitudinal positioning pins with adjacent sieve frames, and a mesh screen is sandwiched between every two layers of the sieve frames, and the mesh screen is limited by the positioning pins; a locking structure is arranged on the side of the sieve plate assembly to longitudinally lock all the sieve frames and the mesh screen; a vibration motor is fixed in the middle of the bottom side of the sieve plate assembly, and the outer circle of the bottom side is connected to the base through a plurality of springs. An eccentric block with adjustable weight is fixed to the output end of the vibration motor.

[0005] Preferably, the sieve plate assembly includes a top sieve frame, a bottom sieve frame and at least one middle sieve frame. Positioning pins are arranged on both the upper and lower sides of the middle sieve frame, and corresponding positioning holes are provided on the top sieve frame, the bottom sieve frame and the mesh screen.

[0006] Preferably, the locking structure includes a locking pin and a lifting eye nut. A positioning shaft that can move axially is arranged on the side of the bottom sieve frame, a positioning hole is fixed on the side of the top sieve frame, one end of the locking pin is fixed to the positioning shaft, and the other end passes through the positioning hole and is threadedly connected to the lifting eye nut.

[0007] Preferably, it further includes a hopper and a discharge port. The hopper and the discharge port are respectively arranged at opposite ends of the sieve plate assembly. The hopper is fixed to the top sieve frame, and each mesh screen is correspondingly provided with a discharge port.

[0008] Preferably, the bottom sieve frame includes a bottom plate without holes, and the bottom plate is correspondingly provided with a discharge port, and different discharge ports are arranged staggeredly.

[0009] Preferably, the screen is inclined to form a higher end and a lower end; the hopper is arranged at the higher end, and the discharge port is arranged at the lower end.

[0010] Preferably, one side of the hopper facing the discharge port is a wall plate with a notch, the notch communicates with the outlet of the hopper, and a valve plate is slidably arranged on the outer side of the wall plate. Adjusting the valve plate can control the size of the notch and the discharge amount.

[0011] Preferably, the screens are parallel to each other, and the aperture sizes of each sieve plate gradually decrease from top to bottom.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model adopts a longitudinal positioning pin and a locking structure to realize the split structure of the sieve plate assembly, which not only enables the number of screening levels in the sieve plate assembly to be adjustable, but also can conveniently replace the screens with different aperture sizes, and the damaged parts can be separately removed for repair, reducing the repair cost.

[0014] 2. The present utility model is provided with a slidable valve plate at the hopper to adjust the discharge amount of lotus seeds, thereby realizing the control of the screening speed.

[0015] 3. The discharge ports of each layer of sieve frames are staggeredly arranged at the same end of the sieve plate assembly, reducing the floor area and improving the collection efficiency of lotus seeds at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 the front view of

[0018] Figure 3 is Figure 1 the side view of

[0019] Figure 4 is Figure 1 the exploded schematic diagram of the hopper and the sieve plate assembly in

[0020] Figure 5 is Figure 1 the enlarged schematic diagram of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Please refer to Figures 1 to 5, in the embodiment of the present utility model, a split lotus seed screening machine is disclosed, which includes a hopper 1, a sieve plate assembly 2, a discharge port 4 and a base 8. The sieve plate assembly 2 is integrally inclined. The hopper 1 is arranged at the higher end of the sieve plate assembly 2 and is located above the sieve plate assembly 2. The outlet of the hopper 1 faces the sieve plate assembly 2, and lotus seeds can enter the sieve plate assembly 2 from the outlet of the hopper 1 for screening lotus seeds with different apertures.

[0022] To facilitate controlling the discharge amount of the hopper 1 and adjusting the screening speed, the side of the hopper 1 facing the discharge port 4 is a wall plate 11 with a notch, and the notch is communicated with the outlet of the hopper 1. Two clamping plates 12 are arranged on the outer side of the wall plate 11, clamping both sides of the valve plate 13 respectively. Two installation grooves 14 are opened on the valve plate 13, and nuts and bolt holes are correspondingly welded on the inner side of the wall plate 11. After adjusting the valve plate 13 up and down along the clamping plates 12 to a suitable height, bolts can be used to sequentially pass through the installation grooves 14 and bolt holes and be fixed with the nuts to lock the valve plate 13 to the wall plate 11, thereby adjusting the size of the notch controlled by the valve plate 13 and further controlling the discharge amount of lotus seeds.

[0023] The present utility model adopts a split sieve plate assembly 2. For specific embodiments, refer to Figure 4 , the sieve plate assembly 2 includes three layers of sieve frames built from top to bottom. A mesh sieve is sandwiched between every two layers of sieve frames. Along with the inclination of the sieve plate assembly 2, the two mesh sieves can make the lotus seeds in the hopper 1 slide down under the action of gravity and gradually cover the mesh sieves, facilitating large-scale screening operations. The three layers of sieve frames are the top sieve frame 21, the middle sieve frame 22 and the bottom sieve frame 23 from top to bottom. Both the top sieve frame 21 and the middle sieve frame are frames with a U-shaped cross-section. To strengthen the strength of the sieve plate assembly 2 during vibration, connecting rods 26 are arranged between the side plates on both sides of the frames of the top sieve frame 21 and the middle sieve frame 22, and both ends of the connecting rod 26 are welded to the corresponding frame side plates. The bottom sieve frame 23 not only includes a U-shaped frame but also a bottom plate 27 without holes welded at the bottommost side. The two mesh sieves are the first-layer mesh sieve 24 and the second-layer mesh sieve 25 from top to bottom. The first-layer mesh sieve 24 and the second-layer mesh sieve 25 are parallel to each other, and the aperture of the first-layer mesh sieve 24 is larger than that of the second-layer mesh sieve 25.

[0024] The cross-section of the side plates on both sides of the frame of the middle sieve frame 22 is also U-shaped, which enables multiple positioning pins 28 to be welded on the upper and lower sides of the middle sieve frame 22. The positioning pins 28 are perpendicular to the inclined plane. Corresponding positioning holes 29 are opened on the top sieve frame 21, the bottom sieve frame 23, the first-layer mesh sieve 24 and the second-layer mesh sieve 25. The positioning pins 28 pass through the positioning holes 29 to horizontally limit the top sieve frame 21, the middle sieve frame 22, the bottom sieve frame 23, the first-layer mesh sieve 24 and the second-layer mesh sieve 25. In this embodiment, the horizontal direction refers to the direction along the inclined plane, and the vertical direction is perpendicular to the inclined plane.

[0025] The above-mentioned vertically arranged positioning pins 28 can only relatively fix each level of sieve frames and screen meshes horizontally. Therefore, a locking structure 3 is also provided on the side of the sieve plate assembly 2. Two groups of the locking structure 3 are respectively arranged on both sides of the sieve plate assembly 2 to longitudinally lock all the sieve frames and screen meshes. Refer to Figure 5 , each group of the locking structure 3 includes two positioning blocks 33, a positioning shaft 34, a locking pin 31, a ring nut 32 and a limiting block 35. The positioning blocks 33 are welded to the side of the bottom sieve frame 23, and each positioning block 33 is provided with a shaft hole to arrange an axially movable positioning shaft 34 inside the positioning block 33. The limiting block 35 is welded to the side of the top sieve frame 21, and a limiting hole is arranged inside the limiting block 35. One end of the locking pin 31 is welded to the middle of the positioning shaft 34, and the other end passes through the limiting hole and is threadedly connected to the ring nut 32. If there is a slight horizontal misalignment between the limiting block 35 and the positioning block 33 due to manufacturing process or measurement errors, only need to horizontally move the positioning shaft 34 to align the end of the locking pin 31 with the limiting hole. The locking structure 3 can lock the top sieve frame 21 to the bottom sieve frame 23 by tightening the ring nut 32. The ring nut 32 is convenient for the staff to manually tighten, and other nuts and matching tools can also be used to replace the ring nut 32.

[0026] In the middle of the bottom side of the sieve plate assembly 2, that is, on the side of the bottom plate 27 facing the ground, a vibration motor 6 is fixed. Six springs 5 are also connected to the side of the bottom plate 27 facing the ground, which are respectively located outside the vibration motor 6. Both ends of the six springs 5 are welded with bolts, and the springs 5 are respectively threadedly connected to the bottom sieve frame 23 and the base 8 through the bolts, so as to connect the bottom sieve frame 23 and the base 8. Output ends are symmetrically arranged on both sides of the vibration motor 6, and an eccentric block 7 with adjustable counterweight is fixed to each output end. If there are sieve plate assemblies 2 with different numbers of layers, the counterweight can be adjusted according to the weight, so that after the vibration motor 6 is started, the vibration motor 6 and the entire sieve plate assembly 2 can be driven by the centrifugal force of the eccentric block 7 to realize the screening of lotus seeds. To ensure the safety of the surrounding environment when the eccentric block 7 moves, a protective cover can be added to the bottom of the bottom sieve frame 23 to enclose the vibration motor 6 and the eccentric blocks 7 on both sides inside.

[0027] The hopper 1 is welded to the higher end of the top sieve frame 21. The openings of the three-layer sieve frames are all at the lower end of the inclined direction, and a discharge port 4 is correspondingly arranged at each opening to collect the lotus seeds on the current layer. According to the above structure, the screening of the present utility model has three layers:

[0028] The first level is the top sieve frame 21 and the first-layer sieve 24. The lotus seeds come out from the hopper 1 and first enter the space of the first level, where they are screened by the first-layer sieve 24. The side plates of the top sieve frame 21 need to have a certain height to prevent the lotus seeds on the first-layer sieve 24 from flying out of the first level due to vibration. The lotus seeds with smaller apertures are transferred to the second level, and the lotus seeds with larger apertures fall along the first-layer sieve 24 into the discharge port 4 of the top sieve frame 21. To simplify the structure and facilitate the replacement of the sieve, the discharge port 4 of the top sieve frame 21 is welded to the end of this side of the middle sieve frame 22.

[0029] The second level is the middle sieve frame 22 and the second-layer sieve 25. The lotus seeds fall from the first level into the second level and are screened by the second-layer sieve 25. The lotus seeds with smaller apertures are transferred to the third level, and the lotus seeds with larger apertures fall along the second-layer sieve 25 into the discharge port 4 of the middle sieve frame 22. To simplify the structure and facilitate the replacement of the sieve, the discharge port 4 of the middle sieve frame 22 is welded to the end of this side of the bottom sieve frame 23.

[0030] The third level is the bottom sieve frame 23. The lotus seeds fall from the second level into the third level and fall along the bottom plate 27 into the discharge port 4 of the bottom sieve frame 23. The bottom sieve frame 23 is also welded with its own discharge port 4.

[0031] The discharge port 4 of each of the above levels is located at the same end of the entire screening machine and is staggeredly arranged, so as to ensure a low floor occupancy rate while collecting lotus seeds with different apertures with the highest efficiency.

[0032] In the embodiment of the present utility model, what is disclosed is an embodiment with a three-layer sieve frame. If a four-layer sieve frame or more is needed, only the corresponding number of intermediate sieve frames and sieves need to be added between the top sieve frame 21 and the bottom sieve frame 23, and at the same time, the counterweight of the eccentric block 7 is increased.

[0033] In summary, the present utility model adopts the split sieve plate assembly 2, which not only enables the number of screening levels in the sieve plate assembly 2 to be adjustable, and multiple middle sieve frames 22 can be set between the top sieve frame 21 and the bottom sieve frame 23; but also can conveniently replace the sieves with different apertures, and the damaged parts in different levels can be separately removed for repair, reducing the repair cost.

[0034] Finally, it should be noted that: the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A split lotus seed screening machine, characterized in that: The invention comprises a sieve plate assembly (2) and a base (8), wherein the sieve plate assembly (2) comprises at least three layers of sieve frames sequentially built from top to bottom, wherein each layer of the sieve frames is laterally limited with the adjacent sieve frames by longitudinal positioning pins (28), and a mesh screen is sandwiched between every two layers of the sieve frames, and the mesh screen is limited by the positioning pins (28); a locking structure (3) is provided on the side of the sieve plate assembly (2) to longitudinally lock all the sieve frames and the mesh screen; a vibration motor (6) is fixed to the middle of the bottom side of the sieve plate assembly (2), and the outer ring of the bottom side is connected to the base (8) by a plurality of springs (5); and an eccentric block (7) with an adjustable counterweight is fixed to the output end of the vibration motor (6).

2. The split type lotus seed screening machine according to claim 1, characterized in that: The sieve plate assembly (2) comprises a top sieve frame (21), a bottom sieve frame (23) and at least one middle sieve frame (22), the middle sieve frame (22) being provided with positioning pins (28) on both upper and lower sides, and the top sieve frame (21), the bottom sieve frame (23) and the mesh screen are provided with corresponding positioning holes (29).

3. The split type lotus seed screening machine according to claim 2, characterized in that: The locking structure (3) comprises a locking pin (31) and a lifting eye nut (32); an axially movable positioning shaft (34) is provided on the side of the bottom sieve frame (23); a positioning hole (29) is fixed on the side of the top sieve frame (21); one end of the locking pin (31) is fixed to the positioning shaft (34), and the other end passes through the positioning hole (29) and is threadedly connected to the lifting eye nut (32).

4. The split type lotus seed screening machine according to claim 2, characterized in that: It also comprises a hopper (1) and a discharge port (4), wherein the hopper (1) and the discharge port (4) are respectively arranged at opposite ends of the screen plate assembly (2), the hopper (1) is fixed to the top screen frame (21), and each of the screens is correspondingly provided with one discharge port (4).

5. The split type lotus seed screening machine according to claim 4, characterized in that: The bottom sieve frame (23) comprises a bottom plate (27) without holes, and the bottom plate (27) is provided with a corresponding discharge port (4), and the different discharge ports (4) are arranged in a staggered manner.

6. The split type lotus seed screening machine according to claim 4, characterized in that: The mesh screen is arranged at an angle to form a higher end and a lower end; the hopper (1) is arranged at the higher end, and the discharge port (4) is arranged at the lower end.

7. The split type lotus seed screening machine according to claim 6, characterized in that: The side of the hopper (1) facing the discharge port (4) is a wall plate (11) with a notch, the notch being in communication with the outlet of the hopper (1), and a valve plate (13) being slidably provided on the outer side of the wall plate (11), and the size of the notch can be controlled by adjusting the valve plate (13), thereby controlling the discharge amount.

8. The split type lotus seed screening machine according to claim 1, characterized in that: The mesh screens are parallel to each other, and the aperture size of each screen plate decreases from top to bottom.

Images