Automatic screening and topdressing machine

Abstract

The utility model belongs to soil conveying equipment technical field, especially point to a kind of automatic screening on earth machine, including frame, and the hopper being set on frame, the rack below the lower end of the hopper is provided with conveyor belt mechanism, the output of conveyor belt mechanism is communicated with the upper end of the connecting hopper being set on rack, the lower end of connecting hopper is communicated with the feed end of screening assembly being set on rack, the rack below the screening outlet of screening assembly is provided with earth-conveying conveyor belt mechanism, and the discharge outlet of filtering assembly is communicated with outside.The utility model is simple in structure, reasonable in design and high in degree of automation, can automatically convey soil in hopper to earth covering machine according to actual earth covering machine soil demand with the aid of conveyor belt mechanism and earth-conveying conveyor belt mechanism, and effectively screen soil particle size by screening assembly between conveyor belt mechanism and earth-conveying conveyor belt mechanism, to meet the demand of seedling soil.

Description

Technical Field

[0001] This utility model belongs to the technical field of soil conveying equipment, and specifically refers to an automatic sieve-loading soil machine. Background Technology

[0002] Currently, the production process of automated seedling raising basically includes the following steps: laying subsoil, sowing, covering with soil, and watering. The subsoil laying and covering steps are both achieved by a soil covering machine automatically filling the seedling trays with soil. However, soil with larger particles has a poorer effect on seedling raising, exhibiting poor water retention and nutrient release, which is detrimental to seedling growth. Research has found that the suitable soil particle size for most crops is between 2mm and 4mm. Furthermore, existing methods of adding soil to the soil covering machine primarily involve using a loader or manual addition, which cannot effectively screen soil particles. Summary of the Invention

[0003] The purpose of this utility model is to provide an automatic sieving and soil-filling machine, which can automatically transport the soil in the hopper to the soil-filling machine according to the actual soil requirements of the covering machine, and effectively screen the soil particles by means of a sieving component.

[0004] This utility model is implemented as follows:

[0005] An automatic sieving and soil-applying machine includes a frame and a hopper mounted on the frame. A conveyor belt mechanism is mounted on the frame below the lower port of the hopper. The output end of the conveyor belt mechanism is connected to the upper port of a connecting hopper mounted on the frame. The lower port of the connecting hopper is connected to the feed end of a sieving assembly mounted on the frame. A soil-applying conveyor belt mechanism is mounted on the frame below the sieving outlet of the sieving assembly. The discharge outlet of the filtration assembly is connected to the outside.

[0006] In the aforementioned automatic sieving and soil-applying machine, the sieving assembly includes an inclined drum. The drum is connected to a rotating shaft on the drum axis via an inner support frame. Both ends of the rotating shaft are rotatably connected to the frame. A sieving motor is mounted on the frame. The output shaft of the sieving motor is connected to one end of the rotating shaft. The drum wall is covered with filter holes. The lower port of the connecting hopper is connected to the upper port of the drum. The lower port of the drum is the discharge outlet.

[0007] In the aforementioned automatic sieving and soil-applying machine, the two ends of the rotating shaft are rotatably coupled to the soil-applying conveyor belt mechanism via brackets. Baffles are provided on the brackets located on the left and right sides of the drum, and a guide channel is formed between the bottom ends of the two baffles for small soil particles to fall from the filter holes into the soil-applying conveyor belt mechanism.

[0008] In the aforementioned automatic sieving and soil-applying machine, the cross-section of the guide channel is a funnel structure with the diameter gradually decreasing from top to bottom.

[0009] In the above-mentioned automatic sieving and soil-applying machine, the soil-applying conveyor belt assembly includes a mounting frame that is inclined along the axial direction of the drum on the frame, and a conveyor belt that is rotatably fitted on the mounting frame. Limiting baffles are symmetrically arranged on both sides of the outer surface of the conveyor belt along its length direction.

[0010] In the aforementioned automatic sieving and soil-loading machine, lifting protrusions are provided on the outer surface of the conveyor belt located between the two limiting walls along its width direction.

[0011] In the aforementioned automatic sieving and soil-loading machine, a partition plate is provided below the lower end of the roller. The two sides of the partition plate are fixedly connected to two baffle plates, and the partition plate provides vertical and horizontal isolation between the lower end of the roller and the soil-loading conveyor belt mechanism.

[0012] In the aforementioned automatic sieving and soil-applying machine, a brush capable of sweeping the outer wall of the drum is provided on a support located on the outer periphery of the drum. The brush is located on one side of the baffle plate along the positive rotation direction of the drum.

[0013] The outstanding advantages of this utility model compared to the prior art are:

[0014] This utility model has a simple structure, reasonable design and high degree of automation. It can automatically transport the soil in the hopper to the covering machine according to the actual soil requirements of the covering machine, and effectively screen the soil particles by means of the sieving component set between the sieving mechanism and the soil conveying mechanism to meet the soil requirements for seedling cultivation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the entire machine of this utility model;

[0016] Figure 2 This is a cross-sectional view of the entire machine of this utility model. Figure 1 ;

[0017] Figure 3 This is a cross-sectional view of the entire machine of this utility model. Figure 2 .

[0018] In the diagram: 1. Frame; 2. Hopper; 3. Conveyor belt mechanism; 4. Connecting hopper; 5. Roller; 6. Inner support frame; 7. Rotating shaft; 8. Screening motor; 9. Filter through hole; 10. Support; 11. Baffle plate; 12. Mounting frame; 13. Conveyor belt; 14. Limiting baffle; 15. Dividing bottom plate; 16. Brush. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0020] An automatic sieving and soil-applying machine includes a frame 1 and a hopper 2 mounted on the frame 1. A conveyor belt mechanism 3 is mounted on the frame 1 below the lower port of the hopper 2. The output end of the conveyor belt mechanism 3 is connected to the upper port of a connecting hopper 4 mounted on the frame 1, and the lower port of the connecting hopper 4 is connected to the feed end of a sieving assembly mounted on the frame 1. A soil-applying conveyor belt mechanism is mounted on the frame 1 below the sieving outlet of the sieving assembly. The discharge outlet of the filtration assembly is connected to the outside. The conveyor belt mechanism 3 is arranged horizontally and adopts a common existing structure, including a conveyor frame and a conveyor belt rotatably connected to the conveyor frame, driven by a conveyor motor to rotate forward.

[0021] This utility model has a simple structure, reasonable design and high degree of automation. It can automatically transport the soil in the hopper 2 to the covering machine according to the actual soil requirements of the covering machine by means of the conveyor belt mechanism 3 and the soil feeding conveyor belt mechanism. The soil particle size is effectively screened by the screening component set between the conveyor belt mechanism 3 and the soil feeding conveyor belt mechanism to meet the soil requirements for seedling cultivation.

[0022] The sieving component can be a commercially available vibrating filter, which vibrates the soil through a filter screen to sieve it, thus filtering the soil particles by size. In this embodiment, the sieving component includes an inclined drum 5. The drum 5 is connected to a rotating shaft 7 on its axis via an inner support frame 6. Both ends of the rotating shaft 7 are rotatably connected to a frame 1. A sieving motor 8 is mounted on the frame 1, and the output shaft of the sieving motor 8 is connected to one end of the rotating shaft 7. The drum wall of the drum 5 is covered with filter holes 9. The lower port of the connecting hopper 4 is connected to the upper port of the drum 5, and the lower port of the drum 5 is the discharge outlet. That is, the inclined drum 5 not only allows the soil to automatically move from the upper port of the drum 5 along the axis of the drum 5 to the entire drum, but also, driven by the sieving motor 8, the rotation of the drum 5 allows small soil particles to quickly fall from the filter holes 9 onto the soil conveyor belt mechanism.

[0023] Considering that the rotation of roller 5 will cause the soil inside roller 5 to be thrown out and fall onto the soil conveyor belt mechanism, both ends of the rotating shaft 7 are rotatably engaged with the soil conveyor belt mechanism via brackets 10. Baffles 11 are provided on the brackets 10 located on both sides of roller 5, and a guide channel is formed between the bottom ends of the two baffles 11 to allow small soil particles to fall from the filter holes 9 onto the soil conveyor belt mechanism. Furthermore, the cross-section of the guide channel is a funnel structure with the diameter gradually decreasing from top to bottom.

[0024] Meanwhile, since the roller 5 is inclined, in order not only to smoothly receive the soil from the roller 5, but also to convey the soil upward to the feed end of the covering machine, the soil conveyor belt 13 assembly includes a mounting frame 12 inclined along the axial direction of the roller 5 on the frame 1, and a conveyor belt 13 rotatably fitted on the mounting frame 12. The conveyor belt 13 is driven to rotate in the forward direction by a conveyor motor, and limit baffles 14 are symmetrically provided on both sides of the outer surface of the conveyor belt 13 along its length direction, which can effectively prevent the soil from falling off from both sides of the conveyor belt 13.

[0025] Furthermore, in order to effectively move the soil upward with the conveyor belt 13, lifting protrusions are provided on the outer surface of the conveyor belt 13 located between the two limiting walls along its width direction.

[0026] In order to prevent large soil particles at the lower end of the roller 5 from falling onto the soil conveyor belt mechanism, a partition plate 15 is provided below the lower end of the roller 5. The two sides of the partition plate 15 are fixedly connected to two baffle plates 11, and the partition plate 15 provides vertical isolation between the lower end of the roller 5 and the soil conveyor belt mechanism.

[0027] In addition, a brush 16 is provided on the bracket 10 located on the outer periphery of the roller 5, which can brush the outer wall surface of the roller 5. The brush 16 is located on one side of the baffle plate 11 along the positive rotation direction of the roller 5.

[0028] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. An automatic sieving and soil-applying machine, characterized in that: The device includes a frame (1) and a hopper (2) mounted on the frame (1). A conveyor belt mechanism (3) is mounted on the frame (1) below the lower port of the hopper (2). The output end of the conveyor belt mechanism (3) is connected to the upper port of the connecting hopper (4) mounted on the frame (1). The lower port of the connecting hopper (4) is connected to the feed end of the screening assembly mounted on the frame (1). An upper conveyor belt mechanism is mounted on the frame (1) below the screening outlet of the screening assembly. The discharge outlet of the filter assembly is connected to the outside.

2. The automatic sieving and soil-applying machine according to claim 1, characterized in that: The sieving assembly includes an inclined drum (5), which is connected to a rotating shaft (7) on the axis of the drum (5) via an inner support frame (6). The two ends of the rotating shaft (7) are rotatably connected to the frame (1). A sieving motor (8) is provided on the frame (1). The output shaft of the sieving motor (8) is connected to one end of the rotating shaft (7). The drum wall of the drum (5) is covered with filter holes (9). The lower port of the connecting bucket (4) is connected to the upper port of the drum (5). The lower port of the drum (5) is the discharge outlet.

3. An automatic sieving and soil-applying machine according to claim 2, characterized in that: The two ends of the rotating shaft (7) are rotatably coupled to the soil conveyor belt mechanism via the bracket (10). The bracket (10) located on the left and right sides of the roller (5) is provided with a baffle plate (11). A guide channel is formed between the bottom ends of the two baffle plates (11) for small soil particles to fall from the filter hole (9) into the soil conveyor belt mechanism.

4. An automatic sieving and soil-applying machine according to claim 3, characterized in that: The cross-section of the guide channel has a funnel-shaped structure with the diameter gradually decreasing from top to bottom.

5. An automatic sieving and soil-applying machine according to claim 2 or 3, characterized in that: The soil conveyor belt (13) assembly includes a mounting frame (12) that is inclined along the axial direction of the roller (5) on the frame (1) and a conveyor belt (13) that is rotatably fitted on the mounting frame (12). Limiting walls (14) are symmetrically provided on both sides of the outer surface of the conveyor belt (13) along its length direction.

6. An automatic sieving and soil-applying machine according to claim 5, characterized in that: The outer surface of the conveyor belt (13) located between the two limiting walls is provided with lifting protrusions along its width direction.

7. An automatic sieving and soil-applying machine according to claim 3, characterized in that: A partition plate (15) is provided below the lower end of the roller (5). The two sides of the partition plate (15) are fixedly connected to the two baffles (11), and the partition plate (15) blocks the lower end of the roller (5) from the soil conveyor belt mechanism.

8. An automatic sieving and soil-applying machine according to claim 3, characterized in that: A brush (16) capable of brushing the outer wall of the roller (5) is provided on the bracket (10) located on the outer periphery of the roller (5). The brush (16) is located on one side of the baffle plate (11) along the positive rotation direction of the roller (5).

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