A seed pre-cleaner

Abstract

The utility model discloses a seed pre -cleaning machine relates to agricultural seed production technical field, including feeding mechanism, impurity removal mechanism and frame, and feeding mechanism is located on the upside of impurity removal mechanism, and feeding mechanism is fixedly connected with the inboard of frame, and the material stirring shaft is arranged on the extension normal of material dripping board, and the material stirring roller is fixedly connected on the material stirring shaft and its rotation excircle line is tangent with the lower edge line of material dripping board, and material dripping board and clamp are symmetrical design, and the two -level (light impurity and heavy impurity) separation of seed through the wind screen and the impurity removal assembly and the impurity removal assembly of winch can better guarantee the purity of the selected seed, and dust can be collected simultaneously to avoid polluting the environment, and the device forms the front and rear settling chamber through the combination of baffle combination and air chamber adjusting plate clamp, and the air volume of settling chamber can be adjusted through air chamber adjusting plate clamp, so that the light impurity can be better screened out, and the seed can not be taken out at the same time, and a variety of seed pre -selection can be suitable.

Description

Technical Field

[0001] This utility model relates to the field of agricultural seed production technology, and in particular to a seed pre-cleaning machine. Background Technology

[0002] Seed pre-cleaning machines are agricultural seed screening equipment used to separate crop seeds from impurities. Existing pre-cleaning machines have a simple separation structure and are not easy to adjust in a timely manner according to different seeds, making them unsuitable for large-scale seed pre-cleaning.

[0003] Patent document CN219187267U discloses a seed pre-cleaning machine. This utility model provides a seed pre-cleaning machine, relating to the technical field of seed pre-cleaning machines. It includes a water tank, with a universal ball installed at the bottom of the inner wall of the water tank, and a fixing buckle installed on the inner wall of the water tank. A rotating rod is engaged with the side of the fixing buckle away from the inner wall of the water tank. A cleaning brush is installed on the surface of the rotating rod, and a sieve cylinder is installed on the surface of the rotating rod. A feed cover is installed at the end of the rotating rod away from the fixing buckle, and a sealing cover is installed on the surface of the water tank. Seeds are placed inside the sieve cylinder, which is placed inside the water tank and connected to the fixing buckle. When the fixing buckle rotates, it drives the rotating rod to rotate, causing the rotating rod to follow the rotating cleaning brush to clean and agitate the seeds. Dried, broken, and poorly developed seeds fall out through the holes on the surface of the sieve cylinder. After cleaning, the entire sieve cylinder is removed, and the dried, broken, and poorly developed seeds are discharged with the water flow, ensuring excellent seed quality inside the sieve cylinder.

[0004] Existing seed pre-cleaning machines have a simple separation structure and are not easy to adjust in a timely manner according to different seeds. They are not suitable for pre-cleaning large quantities of seeds and do not collect dust, resulting in a harsh working environment. Utility Model Content

[0005] This utility model discloses a seed pre-cleaning machine, which aims to solve the problems of existing seed pre-cleaning machines having a simple separation structure and being inconvenient to adjust in a timely manner according to different selected seeds, making them unsuitable for pre-cleaning large quantities of seeds.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a seed pre-cleaning machine, comprising a feeding mechanism, a cleaning mechanism, and a frame; the feeding mechanism is located above the cleaning mechanism, which is fixedly connected to the inner side of the frame; the feeding mechanism includes a feeding port, a material flow assembly, and a material feeding assembly; the feeding port is located above the material flow assembly and the material feeding assembly; the material flow assembly includes a material flow plate, a material flow rubber, and a clamping plate; the material flow plate and the clamping plate are symmetrically designed; the material feeding assembly is located at the lower opening of the material flow plate and the clamping plate; the material flow rubber is located on both sides of the material flow plate and the clamping plate; the material feeding assembly includes a material feeding shaft and a material feeding roller; the material feeding shaft is located on the extended normal line of the material flow plate; the material feeding roller is fixedly connected to the material feeding shaft and its outer rotation circle is tangent to the lower edge of the material flow plate; the feeding mechanism also includes a counterweight rod and a cam adjustment plate; the counterweight rod is fixedly connected to the upper end of the clamping plate; and the cam adjustment plate is installed parallel to the lower side of the clamping plate.

[0007] By setting up a feeding mechanism and a feeding assembly, the seeds can be dispersed more evenly and facilitate the subsequent separation of impurities through the feeding shaft and feeding roller. The upper part of the clamping plate is connected by an elastic plate, and the design of the cam adjustment plate can better control the feeding flow.

[0008] In a preferred embodiment, the impurity removal mechanism includes an air screen impurity removal component and a winch impurity removal component. The winch impurity removal component is located on the right side of the feeding mechanism, and the air screen impurity removal component is located below the feeding mechanism. The air screen impurity removal component includes an air screen box, a cam-driven vibration assembly, and a discharge port. The cam-driven vibration assembly is hinged to the air screen box. The winch impurity removal component includes a winch groove, a winch shaft, and an air chamber adjusting plate. The winch groove partially covers the winch shaft, and the air chamber adjusting plate is vertically arranged at the normal line between the two winch shafts.

[0009] The air screen box consists of two removable screens, upper and lower. The upper and lower screens are connected to the cam drive vibration assembly via flanges to facilitate screen replacement and vibration frequency adjustment. The upper screen is for screening large particles of impurities (its mesh size is slightly larger than the outer size of the pre-selected seeds), and its lower end is connected to a slag discharge pipe to collect impurities or shelled seeds, avoiding waste and environmental pollution. The lower screen has a mesh size slightly smaller than the outer size of the seeds, and its lower end is connected to a discharge port.

[0010] The winch groove is welded from a "V" shaped clamp and an arc-shaped guide groove. Its main function is to collect the sucked-in light impurities and remove them from the impurity removal mechanism. A slag discharge port is connected to one side of the winch groove, and the light impurities are discharged along the slag discharge port. This ensures smooth mechanical operation while reducing the secondary pollution caused by the floating of light impurities to the population.

[0011] By setting up a winch impurity removal component and using a negative pressure air chamber design, light impurities and dust can be separated, ensuring pre-selection purity while reducing dust diffusion and improving the production environment. By setting up an air screen impurity removal component, heavy particle impurities can be removed by a vibrating screen, which can better complete the pre-cleaning of seeds, and the vibrating screen component completes the secondary screening of seeds.

[0012] In a preferred embodiment, the frame includes a support frame and a baffle assembly, the baffle assembly is disposed on both sides of the support frame, the air chamber regulating plate is clamped inside the baffle assembly, and the winch groove is welded to the baffle assembly.

[0013] The frame also includes motor support lifting slots, etc. The baffle assembly includes an outer sealing plate, an inner plate and a gate. They are not classified one by one here. Their specific design position and shape are customized according to requirements. The frame and baffle assembly also form a surrounding air duct, which is set on one side of the discharge port.

[0014] The various components of the equipment are connected by a frame. The combination of baffle assembly and air chamber adjustment plate clamp forms a front and rear settling chamber. The air volume of the settling chamber can be adjusted by the air chamber adjustment plate clamp to better ensure that light impurities are screened out without carrying out seeds.

[0015] This utility model discloses a seed pre-cleaning machine with the following beneficial effects.

[0016] Firstly, the two-stage separation of seeds (light impurities and heavy impurities) through the air sieve and winch impurity removal components can better ensure the purity of the selected seeds, while also collecting dust to avoid environmental pollution.

[0017] Secondly, the combination of baffles and air chamber regulating plate clamps forms front and rear settling chambers. The air volume of the settling chamber can be adjusted by the air chamber regulating plate clamps, which can better ensure that light impurities are removed without carrying out seeds, and is suitable for pre-selection of various seeds. Attached Figure Description

[0018] Figure 1 This invention relates to the overall design of a seed pre-cleaning machine.

[0019] Figure 2 This is a cross-sectional view of a seed pre-cleaning machine proposed in this utility model.

[0020] Figure 3 This is a partially enlarged schematic diagram of point A of a seed pre-cleaning machine proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of a seed pre-cleaning machine proposed in this utility model.

[0022] In the attached diagram: 1. Feeding mechanism; 2. Impurity removal mechanism; 3. Frame; 101. Feed inlet; 102. Material flow assembly; 103. Material feeding assembly; 102a. Material flow plate; 102b. Material flow rubber; 102c. Clamping plate; 103a. Material feeding shaft; 103b. Material feeding roller; 104. Counterweight rod; 105. Cam adjusting plate; 201. Air screen impurity removal assembly; 202. Winch impurity removal assembly; 201a. Air screen box; 201b. Cam vibration drive assembly; 201c. Discharge port; 202a. Winch groove; 202b. Winch shaft; 202c. Air chamber adjusting plate; 301. Support frame; 302. Baffle assembly. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The seed pre-cleaning machine disclosed in this utility model is mainly used to solve the problems of existing seed pre-cleaning machines having a simple separation structure that is not convenient to adjust in a timely manner according to different selected seeds, being unsuitable for large-scale seed pre-cleaning, and having no dust collection, resulting in a harsh working environment.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A seed pre-cleaning machine includes a feeding mechanism 1, a cleaning mechanism 2, and a frame 3. The feeding mechanism 1 is located above the cleaning mechanism 2 and is fixedly connected to the cleaning mechanism 2 inside the frame 3. The feeding mechanism 1 includes a feed inlet 101, a material flow assembly 102, and a material pusher assembly 103. The feed inlet 101 is located above the material flow assembly 102 and the material pusher assembly 103. The material flow assembly 102 includes a material flow plate 102a, a material flow rubber 102b, and a clamping plate 102c. The material flow plate 102a and the clamping plate 102c are symmetrically designed. The material pusher assembly 103 is located at the lower opening of the material flow plate 102a and the clamping plate 102c. The material flow rubber 102b is located on both sides of the material flow plate 102a and the clamping plate 102c.

[0027] In this scheme, the pre-cleaned seed population is sucked in from the feed inlet 101 through the feeding mechanism 1 and the feeding component 103. Under the action of the feeding roller 103b, it is dispersed and the light impurities are initially separated. The light impurities flow along the clamping plate 102c to the settling chamber. The feeding component 103 can disperse the seeds more evenly and facilitate the subsequent separation of impurities. The flow plate 102a is equipped with flow rubber 102b on both sides, which can better ensure the flow trajectory of the seed population and ensure the full separation of light impurities.

[0028] Among them, reference Figure 1 and Figure 4 In a preferred embodiment, the feeding assembly 103 includes a feeding shaft 103a and a feeding roller 103b. The feeding shaft 103a is disposed on the extended normal line of the material flow plate 102a. The feeding roller 103b is fixedly connected to the feeding shaft 103a and its outer circle of rotation is tangent to the lower edge of the material flow plate 102a. The feeding mechanism 1 also includes a counterweight rod 104 and a cam adjustment plate 105. The counterweight rod 104 is fixedly connected to the upper end of the clamping plate 102c, and the cam adjustment plate 105 is installed parallel to the lower side of the clamping plate 102c.

[0029] In this scheme, the adjustment of the cam adjustment plate 105 can change the angle 102c between the feeding roller 103b and the clamping plate, thereby controlling the feeding speed. The rotation of the feeding shaft 103a and the feeding roller 103b further ensures the feeding rate and smoothness, and prevents material spillage and blockage.

[0030] Furthermore, refer to Figure 1 , 2 and Figure 3 In a preferred embodiment, the impurity removal mechanism 2 includes an air screen impurity removal component 201 and a winch impurity removal component 202. The winch impurity removal component 202 is located on the right side of the feeding mechanism 1, and the air screen impurity removal component 201 is located below the feeding mechanism 1. The air screen impurity removal component 201 includes an air screen box 201a, a cam-driven vibration assembly 201b, and a discharge port 201c. The cam-driven vibration assembly 201 is hinged to the air screen box 201a. The winch impurity removal component 202 includes... The frame 3 includes a winch groove 202a, a winch shaft 202b, and a wind chamber adjusting plate 202c. The winch groove 202a partially covers the winch shaft 202b. The wind chamber adjusting plate 202c is vertically arranged at the normal line between the two winch shafts 202b. The frame 3 includes a support frame 301 and a baffle assembly 302. The baffle assembly 302 is arranged on both sides of the support frame 301. The wind chamber adjusting plate 202c is sandwiched inside the baffle assembly 302. The winch groove 202a is welded to the baffle assembly 302.

[0031] The air screen impurity removal component 201 and the winch impurity removal component 202 are connected to the inner side of the baffle assembly 302 to form a first settling chamber and a second settling chamber. The first settling chamber and the second settling chamber are negative pressure environments. When the population is fed, under the negative pressure of the first settling chamber, light impurities and dust are separated. After one dust removal, the population falls into the air screen impurity removal component 201, thereby completing the removal of heavy impurities.

[0032] The specific implementation steps are as follows:

[0033] First, after starting the machine, connect the feed, turn on the suction fan, adjust the cam adjustment plate 105 to observe the population distribution on the screen, and the optimal feeding rate is when the population covers the screen. After adjustment, lock the cam adjustment plate 105.

[0034] The second step is to observe the impurity removal performance of the winch impurity removal component 202 and then adjust the air chamber adjustment plate 202c until it no longer carries out seeds, and then make appropriate fine adjustments to achieve the best impurity removal effect.

[0035] The third step is to observe the purity of the seed population after impurity removal by the air screen, and readjust the feeding rate according to the actual situation to achieve the optimal operating rate and ensure production economy.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A seed pre-cleaning machine, comprising a feeding mechanism (1), a cleaning mechanism (2), and a frame (3); Its features are: The feeding mechanism (1) is located on the upper side of the impurity removal mechanism (2), and the feeding mechanism (1) and the impurity removal mechanism (2) are fixedly connected to the inner side of the frame (3); The feeding mechanism (1) includes a counterweight rod (104) and a cam adjusting plate (105). The counterweight rod (104) is fixedly connected to the upper end of the clamping plate (102c), and the cam adjusting plate (105) is installed parallel to the lower side of the clamping plate (102c). The frame (3) includes a support frame (301) and a baffle assembly (302). The baffle assembly (302) is disposed on both sides of the support frame (301). An air chamber regulating plate (202c) is sandwiched inside the baffle assembly (302). The baffle assembly (302) is welded to the winch groove (202a).

2. The seed pre-cleaning machine according to claim 1, characterized in that, The feeding mechanism (1) further includes a feeding port (101), a material flow assembly (102), and a material pusher assembly (103). The feeding port (101) is located on the upper side of the material flow assembly (102) and the material pusher assembly (103). The material flow assembly (102) includes a material flow plate (102a), a material flow rubber (102b), and a clamping plate (102c). The material flow plate (102a) and the clamping plate (102c) are symmetrically designed. The material pusher assembly (103) is located at the lower opening of the material flow plate (102a) and the clamping plate (102c). The material flow rubber (102b) is located on both sides of the material flow plate (102a) and the clamping plate (102c).

3. A seed pre-cleaning machine according to claim 2, characterized in that, The feeding assembly (103) includes a feeding shaft (103a) and a feeding roller (103b). The feeding shaft (103a) is located on the extended normal line of the material flow plate (102a). The feeding roller (103b) is fixedly connected to the feeding shaft (103a) and its outer circle of rotation is tangent to the lower edge of the material flow plate (102a).

4. A seed pre-cleaning machine according to claim 1, characterized in that, The impurity removal mechanism (2) includes an air screen impurity removal component (201) and a winch impurity removal component (202). The winch impurity removal component (202) is located on the right side of the feeding mechanism (1), and the air screen impurity removal component (201) is located below the feeding mechanism (1). The air screen impurity removal component (201) includes an air screen box (201a), a cam drive vibration assembly (201b), and a discharge port (201c). The cam drive vibration assembly (201b) is hinged to the air screen box (201a).

5. A seed pre-cleaning machine according to claim 4, characterized in that, The winch cleaning assembly (202) includes a winch groove (202a), a winch shaft (202b), and a wind chamber adjusting plate (202c). The winch groove (202a) partially covers the winch shaft (202b), and the wind chamber adjusting plate (202c) is vertically arranged at the normal line between the two winch shafts (202b).

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