A multi-stage screening apparatus for vegetables

Abstract

The utility model belongs to the vegetable screening technical field, specifically is a kind of multistage screening equipment for vegetable, including chassis, backing plate;The backing plate is fixedly installed on chassis, and the vegetable basket is placed on the surface of backing plate, motor, the motor is fixedly installed on the surface of chassis, the fixed ring is rotatably connected on the chassis, the fixed ring is provided with three groups, and each group contains two, and between the two fixed rings in each group, a plurality of sieve rods are provided, by the design of sieve rod and sieve rod, the smaller diameter vegetables can directly pass through the gap between sieve rod and fall on the guide plate, without waiting for suitable screen hole, so as to avoid the accumulation condition, greatly improve screening efficiency, and the multiple buffering design of arc-shaped guide plate and the rubber material buffer pad on its surface can also ensure that vegetables are not damaged.

Description

Technical Field

[0001] This utility model relates to the field of vegetable screening technology, specifically a multi-stage screening device for vegetables. Background Technology

[0002] Vegetable sorting is a crucial step in vegetable processing, involving the sorting and classification of vegetables of different sizes so that they can be processed using different methods.

[0003] Traditional screening machines typically use a vibrator in conjunction with a screen. This screening method is not only noisy but also easily damages vegetables. Damaged vegetables are prone to rotting and spoilage during transportation, affecting their edibility. In addition, round vegetables are easily stuck on the surface of the filter holes during screening, requiring manual cleaning by staff, which is a very cumbersome process. Therefore, a multi-stage screening device for vegetables is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve at least one technical problem in the background technology, this utility model proposes a multi-stage screening device for vegetables.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a multi-stage screening device for vegetables, comprising a base frame and a tray; the tray is fixedly installed on the base frame, and a vegetable basket is placed on the surface of the tray;

[0006] The motor is fixedly mounted on the surface of the base frame. A fixed ring is rotatably connected to the base frame. There are three sets of fixed rings, each set containing two rings. Several screen rods are arranged between the two fixed rings in each set.

[0007] A bracket is fixedly connected to the base frame, and a positioning wheel is rotatably connected to the surface of the bracket. The positioning wheel is connected to the motor via a belt drive, and the belt is meshed with gears to connect the positioning wheel and the positioning wheel to the fixed ring.

[0008] A guide plate is installed between each pair of fixed rings via an adjustment mechanism;

[0009] A feeding box is installed on the surface of the base frame via an adjustment mechanism two.

[0010] A guide plate is installed on the base frame via an adjustment mechanism;

[0011] The motor is a geared motor.

[0012] Preferably, the fixed ring has an installation groove on its surface, an adjusting ring is rotatably connected in the installation groove, the adjusting ring has an adjusting groove corresponding to the screen rod on its surface, the adjusting groove is arc-shaped, a fixed shaft is fixedly connected in the installation groove, the screen rod is slidably connected on the surface of the fixed shaft, the fixed ring has a groove on its surface, a pressure plate is slidably connected in the groove, an adjusting bolt is threadedly connected to the surface of the adjusting ring, the adjusting bolt passes through the side wall of the groove and the pressure plate and is movably connected, and a fixing nut is threadedly connected to the surface of the adjusting bolt.

[0013] Preferably, the first adjustment mechanism includes a slide rod, which is fixedly installed on the surface of the guide plate. Both ends of the slide rod are movably connected through the base frame. A fixing bolt is threadedly connected to the end surface of the slide rod that passes through the base frame. A knob is provided on the surface of the fixing bolt. The second adjustment mechanism includes a fixing block. A through hole is opened on the surface of the fixing block. A fixing bolt is threadedly connected to the surface of the feeding box. The fixing bolt is slidably connected through the through hole. A knob is fixedly connected to the surface of the fixing bolt.

[0014] Preferably, the adjustment mechanism includes a fixed frame, a through groove on the surface of the fixed frame, a slider slidably connected in the through groove, a reinforcing rod fixedly connected to the surface of the slider, the other end of the reinforcing rod fixedly connected to the surface of the guide plate, and a fixing bolt threadedly connected to the surface of the slider.

[0015] Preferably, the guide plate is arc-shaped, and a buffer pad is fixedly connected to the surface of the guide plate. The buffer pad is made of rubber.

[0016] Preferably, the bottom surface of the feeding box is grid-shaped, and a protective cover is fixedly connected to the surface of the base frame to protect the conveyor belt.

[0017] Preferably, a connecting rod is slidably connected to the surface of the base frame via a spring. The surface of the connecting rod is "L"-shaped. A top rod is fixedly connected to the end of the long arm of the connecting rod. Several protrusions are fixedly connected to the surface of the fixing ring.

[0018] Preferably, a push plate is movably connected to the surface of the tray via a spring, a vertical shaft is fixedly connected inside the basket, and the bottom plate of the basket is designed to be movable and fitted onto the surface of the vertical shaft.

[0019] The advantages of this utility model are:

[0020] 1. This utility model, through the design of the sieve rods, allows vegetables with smaller diameters to fall directly onto the guide plate through the gaps between the sieve rods without waiting for the appropriate sieve holes, thus avoiding accumulation and greatly improving screening efficiency. At the same time, the multiple cushioning design of the arc-shaped guide plate and the rubber buffer pad on its surface also ensures that the vegetables will not be damaged by falling.

[0021] 2. This utility model uses a top rod set on the surface of the base frame. The top rod can push out the vegetables that are stuck between the screen rods, avoiding squeezing and damage. Because the number of protrusions is the same as that of the fixed shaft, each protrusion is set at the corresponding position of the fixed shaft, thereby maximizing the efficiency of the top rod. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the base frame structure of Example 1;

[0024] Figure 2 This is a schematic diagram of the motor structure in Example 1;

[0025] Figure 3 This is a schematic diagram of the fixing ring structure in Example 1;

[0026] Figure 4 Example 1 Figure 3 Schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the connecting rod structure in Embodiment 1;

[0028] Figure 6 This is a schematic diagram of the feeding box structure in Example 1;

[0029] Figure 7 This is a schematic diagram of the cross-sectional structure of the guide plate in Example 1;

[0030] Figure 8 This is a schematic diagram of the pusher plate structure in Example 2.

[0031] In the diagram: 1. Base frame; 2. Vegetable basket; 3. Support plate; 5. Adjustment mechanism one; 503. Knob one; 504. Slide rod; 6. Adjustment mechanism two; 601. Fixing block; 602. Knob two; 7. Feeding box; 8. Adjustment mechanism three; 9. Guide plate; 12. Bracket; 13. Protective cover; 15. Motor; 16. Fixing ring; 17. Fixing shaft; 18. Screen rod; 19. Mounting groove; 20. Adjustment ring; 21. Adjustment groove; 22. Groove; 23. Pressure plate; 25. Adjustment bolt; 26. Top rod; 27. Connecting rod; 29. ​​Guide plate; 30. Adjustment mechanism three; 301. Fixing frame; 302. Slider; 33. Push plate; 35. Vertical shaft. Detailed Implementation

[0032] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example 1

[0034] Please see Figure 1-7 As shown, a multi-stage screening device for vegetables includes a base frame 1 and a tray 3; the tray 3 is fixedly installed on the base frame 1, and a vegetable basket 2 is placed on the surface of the tray 3;

[0035] Motor 15 is fixedly mounted on the surface of base frame 1. Fixed rings 16 are rotatably connected to base frame 1. There are three sets of fixed rings 16, each set containing two rings. Several screen rods 18 are arranged between the two fixed rings 16 in each set.

[0036] A bracket 12 is fixedly connected to the base frame 1. A positioning wheel is rotatably connected to the surface of the bracket 12. The positioning wheel is driven by the motor 15 via a belt. The belt is meshed with the positioning wheel, and the positioning wheel is meshed with the fixed ring 16 via gears.

[0037] A guide plate 9 is installed between each pair of fixed rings 16 via an adjustment mechanism 5;

[0038] A feeding box 7 is mounted on the surface of the base frame 1 via an adjustment mechanism 2 6;

[0039] A guide plate 29 is installed on the base frame 1 via an adjustment mechanism;

[0040] Motor 15 is a geared motor 15;

[0041] The bottom surface of the feeding box 7 is grid-shaped, and the base frame 1 is fixedly connected to the protective cover 13 to protect the belt. The guide plate 29 is arc-shaped and the surface of the guide plate 29 is fixedly connected to the buffer pad, which is made of rubber.

[0042] During operation, round vegetables are poured into the feeding box 7. Because the feeding box 7 is tilted, under the influence of gravity, smaller diameter vegetables will fall through the gap between the screen rods 18 onto the guide plate 29 and then into the vegetable basket 2. Larger diameter vegetables will not fall. Driven by the motor 15, the fixing ring 16 will continue to rotate, and larger diameter vegetables will be conveyed to the next screen. Because the gap between the screen rods 18 in the second screen is larger than that in the first screen, larger diameter vegetables will fall through the second screen and be guided into the vegetable basket 2. This process continues until the third screen, where vegetables fall through the gap between the screen rods 18. The design allows smaller diameter vegetables to fall directly onto the guide plate 29 through the gaps between the sieve bars 18 without waiting for the appropriate sieve holes, thus avoiding accumulation and significantly improving screening efficiency. The curved guide plate 29 and its surface rubber cushioning pads provide multiple cushioning, preventing damage to the vegetables. Furthermore, the transmission efficiency is higher because the motor 15 rotates with a belt with a rack and pinion mechanism, and the gear meshing between the positioning wheel and the fixed ring 16 ensures synchronous rotation between the two fixed rings 16 in each group, preventing the sieve bars 18 from twisting and affecting the screening effect.

[0043] The surface of the fixed ring 16 has an installation groove 19, and an adjusting ring 20 is rotatably connected in the installation groove 19. The surface of the adjusting ring 20 has an adjusting groove 21 corresponding to the screen rod 18. The adjusting groove 21 is arc-shaped. A fixed shaft 17 is fixedly connected in the installation groove 19. The screen rod 18 is slidably connected to the surface of the fixed shaft 17. The surface of the fixed ring 16 has a groove 22, and a pressure plate 23 is slidably connected in the groove 22. An adjusting bolt 25 is threadedly connected to the surface of the adjusting ring 20. The adjusting bolt 25 passes through the side wall of the groove 22 and the pressure plate 23 and is movably connected. A fixing nut is threadedly connected to the surface of the adjusting bolt 25. A connecting rod 27 is slidably connected to the surface of the base frame 1 through a spring. The surface of the connecting rod 27 is "L"-shaped. A top rod 26 is fixedly connected to the end of the long arm of the connecting rod 27. Several protrusions are fixedly connected to the surface of the fixed ring 16.

[0044] During operation, if it is necessary to further sieve the vegetables or sieve vegetables with different requirements, the fixing nut on the surface of the adjusting bolt 25 is loosened, allowing the adjusting bolt 25 to slide left and right. When the adjusting bolt 25 slides, it drives the fixedly connected adjusting ring 20 to rotate. At this time, the adjusting ring 20 drives the screen rod 18 to retract towards the center position. Then, the fixing nut is tightened to adjust the gap between the screen rods 18, thereby achieving the purpose of sieving vegetables with different requirements. Because the base frame 1 is equipped with a top rod 26, when the fixing ring 16 drives the triangular protrusion to press the connecting rod 27, the connecting rod 27 retracts towards the center position. After the protrusion passes the connecting rod 27, the spring returns to its original position. If the diameter of the vegetable is just stuck between the screen rods 18, it can be pushed out by the top rod 26 to avoid crushing and damage. Because the number of protrusions is the same as that of the fixed shaft 17, each protrusion is set at the corresponding position of the fixed shaft 17, thereby maximizing the efficiency of the top rod 26.

[0045] Adjustment mechanism 1 5 includes a slide rod 504, which is fixedly installed on the surface of the guide plate 9. Both ends of the slide rod 504 are movably connected through the base frame 1. The end surface of the slide rod 504 that passes through the base frame 1 is threaded with a fixing bolt 1. The surface of the fixing bolt is provided with a knob 1 503. Adjustment mechanism 2 6 includes a fixing block 601. The surface of the fixing block 601 is provided with a through hole. The surface of the feeding box 7 is threaded with a fixing bolt 2. The fixing bolt is slidably connected through the through hole. The surface of the fixing bolt is fixedly connected with a knob 2 602.

[0046] The adjustment mechanism 308 includes a fixed frame 301. A through groove is opened on the surface of the fixed frame 301. A slider 302 is slidably connected in the through groove. A reinforcing rod is fixedly connected to the surface of the slider 302. The other end of the reinforcing rod is fixedly connected to the surface of the guide plate 29. A fixing bolt 3 is threadedly connected to the surface of the slider 302.

[0047] During operation, if the gap between the screen rods 18 is reduced, the gap between the screen rods 18 and the feeding box 7, guide plate 29, and guide plate 9 will increase, which may cause vegetables to fall. In this case, adjustments can be made using adjustment mechanism 1 5, adjustment mechanism 2 6, and adjustment mechanism 3 308. When adjustment is needed, loosen the fixing bolts in the adjustment mechanisms, and then move the feeding box 7 closer to the fixing ring 16 to adjust the gap between the feeding box 7 and the screen rods 18. By moving the guide plate 9 downward, the gap between the guide plate 9 and the screen rods 18 on both sides can be adjusted. Because the fixing ring 16 is circular, the gap between the guide plate 29 and the screen rods 18 can be adjusted by moving the guide plate 29 upward or downward. The reinforcing rod can improve the stability of the guide plate 29, reduce the random shaking caused by vegetable impact, and extend the service life of the fixing bolt 3 on the surface of the slider 302.

[0048] Example 2

[0049] Please see Figure 8 As shown in the first embodiment, as another implementation of this utility model, the surface of the tray 3 is movably connected to the push plate 33 by a spring, the inside of the vegetable basket 2 is fixedly connected to the vertical shaft 35, and the bottom plate of the vegetable basket 2 is designed to be movable and is sleeved on the surface of the vertical shaft 35.

[0050] When in operation, the vegetable basket 2 is placed on the push plate 33 on the surface of the tray 3. Under the action of the spring, the bottom plate of the vegetable basket 2 will slide upward. The push plate 33 pushes the bottom plate of the vegetable basket to the upper 1 / 3 position of the vegetable basket 2. By moving the bottom plate upward, the impact received by the vegetables when they fall can be reduced, thereby avoiding the situation of falling and breaking, and effectively ensuring the integrity of the vegetables.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] 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 illustrative of the principles of this 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.

Claims

1. A multi-stage screening device for vegetables, characterized in that: Includes a base frame (1) and a tray (3); the tray (3) is fixedly installed on the base frame (1), and a vegetable basket (2) is placed on the surface of the tray (3). The motor (15) is fixedly mounted on the surface of the base frame (1). A fixed ring (16) is rotatably connected to the base frame (1). The fixed ring (16) is arranged in three groups, each group containing two rings. Several screen rods (18) are arranged between the two fixed rings (16) in each group. A bracket (12) is fixedly connected to the base frame (1), and a positioning wheel is rotatably connected to the surface of the bracket (12). The positioning wheel is driven by a belt to the motor (15), and the belt is meshed with the positioning wheel and the positioning wheel and the fixed ring (16) with gears. A guide plate (9) is installed between each pair of fixed rings (16) via an adjustment mechanism (5); The base frame (1) is fitted with a feeding box (7) via an adjustment mechanism (6); A guide plate (29) is installed on the base frame (1) via an adjustment mechanism; The motor (15) is a geared motor (15).

2. The multi-stage screening device for vegetables according to claim 1, characterized in that: The fixed ring (16) has an installation groove (19) on its surface. An adjusting ring (20) is rotatably connected in the installation groove (19). The adjusting ring (20) has an adjusting groove (21) corresponding to the screen rod (18) on its surface. The adjusting groove (21) is arc-shaped. A fixed shaft (17) is fixedly connected in the installation groove (19). The screen rod (18) is slidably connected on the surface of the fixed shaft (17). The fixed ring (16) has a groove (22) on its surface. A pressure plate (23) is slidably connected in the groove (22). An adjusting bolt (25) is threadedly connected to the surface of the adjusting ring (20). The adjusting bolt (25) passes through the side wall of the groove (22) and the pressure plate (23) and is movably connected. A fixing nut is threadedly connected to the surface of the adjusting bolt (25).

3. A multi-stage screening device for vegetables according to claim 2, characterized in that: The first adjustment mechanism (5) includes a slide rod (504), which is fixedly installed on the surface of the guide plate (9). The two ends of the slide rod (504) are movably connected through the base frame (1). The end surface of the slide rod (504) that passes through the base frame (1) is threaded with a fixing bolt. The surface of the fixing bolt is provided with a knob (503). The second adjustment mechanism (6) includes a fixing block (601), which has a through hole on its surface. The surface of the feeding box (7) is threaded with a fixing bolt. The fixing bolt slides through the through hole. The surface of the fixing bolt is fixedly connected with a knob (602).

4. A multi-stage screening device for vegetables according to claim 3, characterized in that: The adjustment mechanism three (30) (8) includes a fixed frame (301), the fixed frame (301) has a through groove on its surface, a slider (302) is slidably connected in the through groove, a reinforcing rod is fixedly connected to the surface of the slider (302), the other end of the reinforcing rod is fixedly connected to the surface of the guide plate (29), and a fixing bolt three is threadedly connected to the surface of the slider (302).

5. A multi-stage screening device for vegetables according to claim 4, characterized in that: The guide plate (29) is arc-shaped, and a buffer pad is fixedly connected to the surface of the guide plate (29). The buffer pad is made of rubber.

6. A multi-stage screening device for vegetables according to claim 5, characterized in that: The bottom surface of the feeding box (7) is grid-shaped, and the base frame (1) is fixedly connected to a protective cover (13) to protect the belt.

7. A multi-stage screening device for vegetables according to claim 6, characterized in that: The base frame (1) has a connecting rod (27) slidably connected to it by a spring. The surface of the connecting rod (27) is "L" shaped. The end of the long arm of the connecting rod (27) is fixedly connected to a top rod (26). The surface of the fixing ring (16) is fixedly connected to several protrusions.

8. A multi-stage screening device for vegetables according to claim 7, characterized in that: The surface of the tray (3) is movably connected to the push plate (33) by a spring, and the inside of the vegetable basket (2) is fixedly connected to the vertical shaft (35). The bottom plate of the vegetable basket (2) is designed to be movable and is fitted onto the surface of the vertical shaft (35).

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