Electrostatic field generator for seed treatment and electrostatic seed treatment machine

Abstract

The invention discloses an electrostatic field generator for seed treatment and a seed electrostatic processor, the electrostatic field generator comprises a high-voltage electrostatic power supply and an electrostatic field generation mechanism, the electrostatic field generation mechanism comprises an electrode plate and an electrode shaft arranged opposite to the electrode plate, the plate surface of one side, opposite to the electrode shaft, of the electrode plate is an arc-shaped curved surface, the electrode shaft is of a cylindrical structure, the electrode shaft and the circle center of the arc-shaped plate surface of the electrode plate are concentrically arranged, and the electrode shaft and the electrode plate are connected with the positive electrode and the negative electrode of the high-voltage electrostatic power source respectively. The electrode shaft is arranged on the electrode plate, so that a uniform electrostatic field can be formed between the electrode shaft and the electrode plate, the field intensity is continuously adjustable, and the condition that the electrostatic field formed by adopting two parallel metal plates as the electrode plate in the prior art is not uniform is avoided, so that the treatment quality of crop seeds can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of seed processing equipment, and in particular to an electrostatic field generator for seed processing and a seed electrostatic processing machine. Background Art

[0002] Electrostatic field seed treatment technology is a new agricultural technology developed in recent years. Experimental studies have shown that the germination rate and germination potential of crop seeds treated with electrostatic fields have been improved to varying degrees, and the germination period is generally advanced, increasing the seed germination rate and various growth indicators of the seedling stage, and ultimately affecting the yield of crops.

[0003] At present, the existing electrostatic field generator generally uses two parallel metal plates as electrode plates. After the two electrode plates are connected to the positive and negative poles of the power supply, a DC high-voltage electrostatic field is formed between the two electrode plates. However, in order for the electrostatic field to be able to treat the seeds, the size of the electrode plates must be much larger than the distance between the plates. The effect of the plate edge will affect the uniformity of the electrostatic field, that is, the electrostatic field formed between the two electrode plates is uneven. Therefore, the treatment quality of the crop seeds cannot be guaranteed. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides an electrostatic field generator for seed treatment and a seed electrostatic treatment machine to solve the technical problems raised in the background technology.

[0005] In order to achieve the above-mentioned purpose, in the first aspect, the present invention provides an electrostatic field generator for seed treatment, comprising a high-voltage electrostatic power supply and an electrostatic field generating mechanism, the electrostatic field generating mechanism comprising an electrode plate and an electrode shaft arranged opposite to the electrode plate, the plate surface of the electrode plate opposite to the electrode shaft is an arc-shaped surface, the electrode shaft is a cylindrical structure, the electrode shaft is arranged concentrically with the center of the arc-shaped plate surface of the electrode plate, and the electrode shaft and the electrode plate are respectively connected to the positive and negative poles of the high-voltage electrostatic power supply.

[0006] Furthermore, the electrode shaft has discharge structures evenly arranged along the axial direction, and the discharge structures are arranged opposite to the arc-shaped plate surface of the electrode plate.

[0007] Furthermore, the discharge structure is a thread.

[0008] Furthermore, the discharge structure is a plurality of discharge convex blades which are closely arranged along the axial direction of the electrode shaft and are in a circular shape, and the discharge convex blades are integrally provided with the electrode shaft.

[0009] Further, the high-voltage electrostatic power supply includes a controller, a bidirectional thyristor, a step-up transformer and a rectifier, and the controller controls the conduction angle of the bidirectional thyristor;

[0010] The primary side of the step-up transformer and the bidirectional thyristor are connected in series in the input loop;

[0011] The secondary side of the step-up transformer is connected to the rectifier in a DC output circuit, and the DC output circuit is connected to the electrode shaft and the electrode plate.

[0012] Furthermore, a fuse is connected in series in the input circuit.

[0013] Furthermore, a switch is connected in series in the input loop.

[0014] In a second aspect, the present invention further provides a seed electrostatic treatment machine, comprising the electrostatic field generator as described in the first aspect, and also comprising a frame and an intermittent movement mechanism; wherein:

[0015] The frame comprises a frame body and a processing chamber arranged on the frame body, wherein the processing chamber extends horizontally, a seed placing mechanism is connected to the top of one end, and a discharge port is arranged at the bottom of the other end;

[0016] The electrode shaft and the electrode plate of the electrostatic field generator are arranged relatively vertically in the processing chamber along the extension direction of the processing chamber;

[0017] The intermittent movement mechanism includes a conveyor belt, a motor for driving the conveyor belt to intermittently move, and a controller. The motor and the seed delivery mechanism are both connected to the controller. One end of the conveyor belt is arranged opposite to the seed delivery mechanism, and the other end is arranged opposite to the top of the discharge port.

[0018] The conveyor belt is partially disposed between the electrode shaft and the electrode plate.

[0019] Furthermore, the motor is a servo motor.

[0020] Further, the seed delivery mechanism includes a seed storage box and an auger screw conveyor arranged at the bottom of the seed storage box, the auger screw conveyor is arranged horizontally, and the discharge port of the auger screw conveyor is arranged opposite to the conveyor belt;

[0021] The auger screw conveyor is connected to the controller.

[0022] The beneficial effects of the present invention are embodied in:

[0023] (1) The electrostatic field generator provided by the present invention has an electrode shaft of a cylindrical structure, and the plate surface of the electrode plate opposite to the electrode shaft is an arc-shaped curved surface, and the electrode shaft and the center of the arc-shaped plate surface of the electrode plate are concentrically arranged, so that a uniform electrostatic field can be formed between the electrode shaft and the electrode plate, and the field strength is continuously adjustable, thereby avoiding the uneven electrostatic field formed by using two parallel metal plates as electrode plates in the prior art, thereby improving the processing quality of crop seeds.

[0024] (2) The seed electrostatic treatment machine provided by the present invention can process seeds in batches and has the advantages of automatic operation, automatic voltage regulation, automatic timing, uniform electric field, and continuously adjustable field strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0026] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. For ordinary technicians in this field, other accompanying drawings can also be obtained based on these accompanying drawings without paying creative labor.

[0027] Figure 1 A schematic diagram of the structure of a seed electrostatic treatment machine provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of the electrostatic field generating mechanism provided in an embodiment of the present invention Figure 1 ;

[0029] Figure 3 A schematic diagram of the structure of the electrostatic field generating mechanism provided in an embodiment of the present invention Figure 2 ;

[0030] Figure 4 A schematic diagram of the structure of a first electrode shaft provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a second electrode shaft provided in an embodiment of the present invention;

[0032] Figure 6 A circuit diagram of a high-voltage electrostatic power supply provided in an embodiment of the present invention.

[0033] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0038] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] like Figure 1As shown, a seed electrostatic treatment machine provided in this embodiment includes a frame, an electrostatic field generator and an intermittent movement mechanism. The frame includes a frame body 1 and a treatment chamber 2 arranged on the frame body 1, and the treatment chamber 2 extends horizontally, with a seed delivery mechanism 3 connected to the top of one end and a discharge port 4 arranged at the bottom of the other end.

[0041] The electrostatic field generator includes a high-voltage electrostatic power supply and an electrostatic field generating mechanism, such as Figure 2 and Figure 3 As shown, the electrostatic field generating mechanism includes an electrode plate 6 and an electrode shaft 5 arranged opposite to the electrode plate 6, the plate surface of the electrode plate 6 opposite to the electrode shaft 5 is an arc-shaped curved surface, the electrode shaft 5 is a cylindrical structure, the electrode shaft 5 is concentrically arranged with the center of the arc-shaped plate surface of the electrode plate 6, the electrode shaft 5 and the electrode plate 6 are respectively connected to the positive and negative poles of the high-voltage electrostatic power supply, a uniform electrostatic field is formed between the electrode shaft 5 and the electrode plate 6, and the seeds are processed in the electrostatic field.

[0042] The electrode shaft 5 has a discharge structure evenly arranged along the axial direction, and the discharge structure is arranged opposite to the arc-shaped plate surface of the electrode plate 6. In this embodiment, the discharge structure can be as follows: Figure 4 The thread 11 shown may also be Figure 5 As shown, a plurality of discharge convex blades 12 are closely arranged along the axial direction of the electrode shaft 5 and are in a circular shape. The discharge convex blades 12 are integrally provided with the electrode shaft 5 .

[0043] It should be noted that Figure 3 and Figure 4 The specific discharge structures shown in the figure are only partial examples of all discharge structures that can form a uniform electrostatic field with the electrode plate 6. It is understandable that the discharge structure can also have other structural forms, which will not be described in detail here.

[0044] In this embodiment, Figure 6 As shown, the high-voltage electrostatic power supply includes a controller, a bidirectional thyristor V1, a step-up transformer and a rectifier. The controller controls the conduction angle of the bidirectional thyristor V1, and then controls the electric field strength. The adjustable range of the electric field strength is 0 to 12 kV / cm. The primary side of the step-up transformer is connected in series with the bidirectional thyristor V1 in the input circuit, and the input circuit is connected to the 220V mains. The secondary side of the step-up transformer is connected to the rectifier in the DC output circuit, and the DC output circuit is connected to the electrode shaft 5 and the electrode plate 6, and the electrode shaft 5 and the electrode plate 6 are powered to obtain an adjustable high-voltage electrostatic field.

[0045] Furthermore, a fuse F and a switch K are connected in series in the input circuit, and the fuse F is used for short-circuit protection.

[0046] In this embodiment, the electrode shaft 5 and the electrode plate 6 of the electrostatic field generator are relatively arranged in the processing chamber 2 up and down along the extension direction of the processing chamber 2.

[0047] The intermittent movement mechanism includes a conveyor belt 7, a motor 8 for driving the conveyor belt 7 to intermittently move, and a controller. The motor 8 and the seed delivery mechanism 3 are both connected to the controller. One end of the conveyor belt 7 is arranged opposite to the seed delivery mechanism 3, and the other end is arranged opposite to the top of the discharge port 4. The conveyor belt 7 is partially arranged between the electrode shaft 5 and the electrode plate 6. When the seeds are transported to the electrostatic field between the electrode shaft 5 and the electrode plate 6, the electrostatic field processes the seeds. In order to facilitate accurate control of the moving speed of the conveyor belt 7, the motor 8 adopts a servo motor.

[0048] In this embodiment, the seed delivery mechanism 3 includes a seed storage box 9 and an auger screw conveyor 10 arranged at the bottom of the seed storage box 9, the auger screw conveyor 10 is arranged horizontally, and the discharge port of the auger screw conveyor 10 is arranged opposite to the conveyor belt 7. The auger screw conveyor 10 is connected to the controller. The seeds in the seed storage box 9 are discharged by the auger screw conveyor 10 and fall onto one end of the conveyor belt 7.

[0049] In summary, the seed electrostatic treatment machine provided by the present invention can process seeds in batches and has the advantages of automatic operation, automatic voltage regulation, automatic timing, uniform electric field, and continuously adjustable field intensity.

[0050] The electrode shaft of the electrostatic field generator is a cylindrical structure, the plate surface of the electrode plate opposite to the electrode shaft is an arc-shaped curved surface, and the electrode shaft and the center of the arc-shaped plate surface of the electrode plate are concentrically arranged, so that a uniform electrostatic field can be formed between the electrode shaft and the electrode plate, and the field strength is continuously adjustable, avoiding the uneven electrostatic field formed by the existing use of two parallel metal plates as electrode plates, thereby improving the processing quality of crop seeds.

[0051] Finally, it should be noted that the various technical features of the technical solution of the present application can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.

Claims

1. An electrostatic field generator for seed treatment, characterized in that: The invention comprises a high-voltage electrostatic power supply and an electrostatic field generating mechanism, wherein the electrostatic field generating mechanism comprises an electrode plate (6) and an electrode shaft (5) arranged opposite to the electrode plate (6), the plate surface of the electrode plate (6) opposite to the electrode shaft (5) is an arc-shaped curved surface, the electrode shaft (5) is a cylindrical structure, the electrode shaft (5) is arranged concentrically with the center of the arc-shaped plate surface of the electrode plate (6), and the electrode shaft (5) and the electrode plate (6) are respectively connected to the positive electrode and the negative electrode of the high-voltage electrostatic power supply.

2. The electrostatic field generator for seed treatment as claimed in claim 1, characterized in that: The electrode shaft (5) has a discharge structure evenly arranged along the axial direction, and the discharge structure is arranged opposite to the arc-shaped plate surface of the electrode plate (6).

3. An electrostatic field generator for seed treatment as described in claim 2, characterized in that the discharge structure is a thread (11).

4. An electrostatic field generator for seed treatment as described in claim 2, characterized in that the discharge structure is a plurality of discharge blades (12) in a circular shape and closely arranged along the axial direction of the electrode axis (5), and the discharge blades (12) are integrally arranged with the electrode axis (5).

5. The electrostatic field generator for seed treatment according to claim 1, wherein the high-voltage electrostatic power supply comprises a controller, a bidirectional thyristor, a step-up transformer and a rectifier, and the controller controls the conduction angle of the bidirectional thyristor; The primary side of the step-up transformer and the bidirectional thyristor are connected in series in the input loop; The secondary side of the step-up transformer is connected to the rectifier in a DC output circuit, and the DC output circuit is connected to the electrode shaft (5) and the electrode plate (6).

6. An electrostatic field generator for seed treatment as described in claim 5, characterized in that a fuse is also connected in series in the input circuit.

7. An electrostatic field generator for seed treatment as described in claim 5, characterized in that a switch is also connected in series in the input circuit.

8. A seed electrostatic treatment machine, characterized in that: The electrostatic field generator according to claim 1 further comprises a frame and an intermittent moving mechanism; wherein: The frame comprises a frame body (1) and a processing chamber (2) arranged on the frame body (1); the processing chamber (2) extends horizontally, a top of one end is connected to a seed delivery mechanism (3), and a bottom of the other end is provided with a discharge port (4); The electrode shaft (5) and the electrode plate (6) of the electrostatic field generator are arranged relatively vertically in the processing chamber (2) along the extension direction of the processing chamber (2); The intermittent movement mechanism comprises a conveyor belt (7), a motor (8) for driving the conveyor belt (7) to intermittently move, and a controller; the motor (8) and the seed delivery mechanism (3) are both connected to the controller; one end of the conveyor belt (7) is arranged opposite to the seed delivery mechanism (3), and the other end is arranged opposite to the top of the discharge port (4); The conveyor belt (7) is partially located between the electrode shaft (5) and the electrode plate (6).

9. A seed electrostatic treatment machine as claimed in claim 8, characterized in that: The motor (8) is a servo motor.

10. The seed electrostatic treatment machine according to claim 8, characterized in that: The seed delivery mechanism (3) comprises a seed storage box (9) and an auger screw conveyor (10) arranged at the bottom of the seed storage box (9), the auger screw conveyor (10) is arranged horizontally, and the discharge port of the auger screw conveyor (10) is arranged opposite to the conveyor belt (7); The auger screw conveyor (10) is connected to the controller.

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