Quick automatic reseeding device and method for pneumatic cotton dibbler

Abstract

The invention provides an automatic rapid reseeding device and method for a pneumatic type cotton dibbler, and aims to solve the problem of hole miss-seeding of the pneumatic type cotton dibbler caused by field operation environment, difference of physical characteristics of cotton seeds and problems of the device, and the automatic rapid reseeding device is composed of a miss-seeding monitoring device and a reseeding device. Wherein the miss-seeding monitoring device is combined with a capacitance type seed taking state monitoring technology to obtain the state of cotton seeds carried by suction holes at normal seeding positions of an outer ring, and a basis is provided for reseeding. According to the structure and working characteristics of a pneumatic type cotton dibbler, the seed supplementing device controls objects (cotton seeds carried by inner-ring suction holes or cotton seeds carried by outer-ring suction holes) to be fed in time through selective seed cleaning of cotton seeds carried by inner-ring seed supplementing position suction holes through an inner-ring suction hole seed taking disc, an inner-ring suction hole seed taking disc, an outer-ring suction hole seed taking disc, a selective forced seed cleaning mechanism and a forced seed cleaning driving device; when the cotton seeds carried by the outer ring suction holes are miss-seeded, the cotton seeds carried by the inner ring suction holes are replaced by the cotton seeds to be thrown to finish one-time seed throwing, so that miss-seeded automatic rapid reseeding is realized. According to the invention, the cotton seeding problem caused by hole seeding missing can be effectively relieved, so that the on-film seeding quality and the cotton planting economic benefit are improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent seeding technology, and in particular to a device and method for rapid automatic seeding of a pneumatic cotton seeding device. Background Art

[0002] As an important component of precision seeders, pneumatic cotton hole seeders can achieve one seed per hole, save cotton seeds, and improve sowing efficiency. However, due to the complex field environment, differences in the physical properties of cotton seeds, and problems with the hole seeder system itself, it is often difficult to avoid missing holes. The traditional solution is mainly to reseed, but it can easily lead to a delay in the growth cycle of cotton seedlings. In order to alleviate the cotton sowing problem caused by missed sowing, the current main method is to use a "seed monitoring device + reseeding device" to achieve missed sowing reseeding of the seeding device. Among them, the reseeding method is mainly based on auxiliary compensation, self-compensation, and the design of a new reseeding device, but most of them are used in direct seeding devices for small-grain crops such as wheat and corn, and are not suitable for pneumatic cotton hole seeders. Summary of the invention

[0003] The present invention aims at the missed holes caused by the pneumatic cotton hole seeder due to the field working environment, the difference in the physical properties of the cotton seeds themselves and the problems of the device itself, and proposes an automatic and rapid reseeding method for the pneumatic cotton hole seeder, thereby reducing the sowing quality problems caused by missed holes and improving the planting efficiency of cotton production.

[0004] A device and method for rapid automatic reseeding of a pneumatic cotton hole seeder, the automatic reseeding device is composed of a missed seeding monitoring device and a reseeding device. The missed seeding monitoring device is combined with a capacitive seed taking state monitoring technology to realize online monitoring of the seed taking state of the pneumatic cotton hole seeder, and provide a basis for reseeding judgment for the reseeding device. The reseeding device combines the structure and working characteristics of the pneumatic cotton hole seeder, through inner and outer double-circle suction hole seed taking disks and a selective forced seed clearing mechanism and a forced seed clearing drive device, to timely control the objects to be sown (the cotton seeds carried by the inner circle suction holes or the cotton seeds carried by the outer circle suction holes) by selective seed clearing of the cotton seeds carried by the inner circle reseeding position suction holes, so that when the cotton seeds carried by the outer circle suction holes are missed, the cotton seeds carried by the inner circle suction holes are used as the cotton seeds to be sown to replace them and complete one sowing, thereby realizing automatic and rapid reseeding of missed seeds.

[0005] Furthermore, the missed seeding monitoring device is composed of a capacitive sensor, a microcontroller and a capacitive acquisition module, which can obtain the capacitance signal change value caused by the cotton seeds passing through the sensor detection area and analyze and process it to determine whether the seeds are missed; the reseeding device is composed of an inner and outer double-circle suction hole seed-taking disc, a selective forced seed-clearing mechanism, and a forced seed-clearing drive device. Among them, the inner and outer double-circle suction hole seed-taking disc is provided with an equal number of inner and outer circle suction holes, which serve as the reseeding position suction holes and the normal sowing position suction holes respectively; the selective forced seed-clearing mechanism is in an arc shape as a whole, and is connected to the stepper motor through a rotating shaft to achieve a specific angle of rotation (seed-clearing position-non-seed-clearing position), thereby realizing the selective forced removal of the cotton seeds carried by the inner circle reseeding position suction holes; the forced seed-clearing drive device is composed of a stepper motor and a driver, and is connected to the microcontroller.

[0006] The working principle of a pneumatic cotton hole sowing device and method for rapid automatic reseeding is as follows: taking the cotton seeds carried by a pair of corresponding inner and outer ring suction holes as an example, during sowing operation, the inner and outer double ring suction hole seeding discs complete the filling of the outer ring normal sowing position suction holes and the inner ring reseeding position suction holes through the seed chamber under the negative pressure of the air chamber, and then enter the missed sowing detection area through the seed clearing area. The micro-capacitor acquisition module and the microcontroller perform data acquisition and analysis processing on the capacitor output signal to obtain the seed taking state of the cotton seeds carried by the outer ring sowing position suction holes; when it is judged that the cotton seeds carried by the outer ring sowing position are missed (the carried cotton seeds are empty), the microcontroller sends a reseeding drive signal, and then the forced seed clearing drive device controls the stepping motor to drive the selective forced seed clearing mechanism from the seed clearing position to the non-seed clearing position, and the cotton seeds carried by the inner ring reseeding position suction holes are not cleared, and they are retained as cotton seeds to be sown, so as to replace the cotton seeds carried by the outer ring normal sowing position suction holes to complete a sowing. On the contrary, there is no missed seeding, no reseeding drive signal, the selective seed clearing mechanism is not in action and is in the seed clearing position, the inner circle reseeding position suction holes are cleared, and the outer circle suction holes are used as cotton seeds to be planted.

[0007] Compared with the existing replanting technology, the present invention has the following technical effects: The present invention provides a device and method for rapid automatic reseeding of a pneumatic cotton hole seeder, which can realize reseeding of missed seeds without increasing the complexity of the hole seeder, and can effectively alleviate the cotton sowing problem caused by missed seeds in empty holes. First, a missed seeding monitoring device provides a judgment basis for further actions of a subsequent reseeding device for the information of cotton seeds carried by the suction holes of the outer circle sowing positions (single seed or missed seeds). Through inner and outer double-circle suction hole seed taking discs and a selective forced seed clearing mechanism, the target cotton seeds to be sown (the cotton seeds carried by the inner circle suction holes or the cotton seeds carried by the outer circle suction holes) are selectively cleared to control the cotton seeds carried by the suction holes of the inner circle sowing positions, so that when the cotton seeds carried by the outer circle suction holes are in the state of missed seeds, the cotton seeds carried by the suction holes of the inner circle suction holes are used to replace them to complete a sowing operation, thereby realizing automatic and rapid reseeding of missed seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The present invention is a schematic diagram of an explosion of a pneumatic cotton hole seeder rapid automatic reseeding device according to an embodiment of the present invention.

[0009] Figure 2 This is a front schematic diagram of the installation position of the rapid automatic reseeding device of the pneumatic cotton hole seeder according to an embodiment of the present invention.

[0010] Figure 3 for Figure 2 A partial side view of the installation location of the pneumatic cotton hole seeder's rapid automatic reseeding device.

[0011] Figure 4 Schematic diagram of the structure of a capacitive sensor according to an embodiment of the present invention.

[0012] Figure 5 Schematic diagram of the selective forced seed cleaning mechanism according to an embodiment of the present invention.

[0013] Figure 6 This is a front view of a seed tray with inner and outer double circles of suction holes according to an embodiment of the present invention.

[0014] Figure 7 It is a left view of the seed taking tray with inner and outer double circles of suction holes according to an embodiment of the present invention.

[0015] Figure 8 The present invention is a block diagram of the control structure of the pneumatic cotton hole seeder rapid automatic reseeding device.

[0016] Fig. 9 The present invention is a schematic diagram of the algorithm flow of the pneumatic cotton hole seeder for rapid and automatic reseeding.

[0017] Fig.10 The present invention is a schematic diagram of the working process of the pneumatic cotton hole seeder rapid automatic reseeding device according to an embodiment of the present invention.

[0018] In the figure: 1. Seed delivery tube; 2. Seed discharging cover; 3. Pressure plate; 4. Feeding funnel; 5. Bearing; 6. Seed sorting plate; 7. Micro-capacitance collection module; 8. Fixed duckbill; 9. Moving duckbill; 10. Forced seed cleaning drive device; 11. Selective forced seed cleaning mechanism; 12. Capacitive sensor; 13. Inner and outer double-circle suction hole seed taking plate; 14. Waist belt; 15. Seed cleaning device; 16. Block; 17. Hollow shaft; 18. Bearing; 19. Retaining ring; 20. Casting end cover; 21. Cotton seeds; 1 1-1. Seed clearing position; 11-2. Non-seed clearing position; 12-1. Electrode plate; 12-2. Support device; 13-1. Inner circle seed supplement position suction hole; 13-2. Outer circle normal seeding position suction hole; 13-3. Arch-breaking nail; 13-4. Installation hole; 16-1. Inner circle suction hole block; 16-2. Outer circle suction hole block; I. Seed collection area; II. Seed clearing area; III. Seed carrying area; IV. Missed seeding monitoring area; VI. Selective forced seed clearing area; VII. Seeding area. Implementation

[0019] In order to further clarify the structure and working principle of the pneumatic cotton hole seeder rapid automatic reseeding device of the method described in the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. The embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The present embodiment provides a rapid and automatic reseeding device for a pneumatic cotton hole seeder, which can be adapted to the structure and working characteristics of the pneumatic cotton hole seeder to achieve automatic and rapid reseeding of missed seeds.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, an exploded schematic diagram, a front schematic diagram of the installation position, and a partial side view of the installation position of a pneumatic cotton hole seeder rapid automatic reseeding device include a pneumatic cotton hole seeder body structure, a missed seeding monitoring device, and a reseeding device. The missed seeding monitoring device is mainly composed of a capacitive sensor (12), a microcapacitor acquisition module (7), and a microcontroller. The capacitive sensor is connected to the microcontroller via the microcapacitor acquisition module, and is installed on the seed cover and the seed taking disc parallel to each other and maintaining a certain distance. It is located after the seed cleaning area and before the reseeding area, and can cover the movement trajectory of the cotton seeds carried by the outer circle sowing position suction hole. The reseeding device is mainly composed of an inner and outer double circle suction hole seed taking disc (13), a selective forced seed cleaning mechanism (11), a forced seed cleaning drive device (10), and a microcontroller. The inner and outer double circle suction hole seed taking disc is installed on the casting end cover (20), which can provide cotton seeds and sow seeds for the normal sowing process and the reseeding process. The forced seed clearing drive device is installed on the seed discharging cover (2), connected to the selective forced seed clearing mechanism via a rotating shaft, and controlled to achieve a specific angle of rotation (seed clearing position-non-seed clearing position) under the action of a microcontroller. The selective forced seed clearing mechanism is tightly connected to the rotating shaft, located inside the motion track of the inner circle seed supplement position suction hole (13-1) and outside the motion track of the arch breaking nail (13-3), and its lower end surface is parallel to the inner and outer double circle suction hole seed taking discs and maintains a certain distance.

[0022] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the capacitive sensor is composed of an electrode plate (12-1) and a support device (12-2). The inner circle suction hole forced seed cleaning device is arc-shaped as a whole, and is connected to the forced seed cleaning drive device through a rotating shaft. Under the action of a microcontroller, the cotton seeds carried by the inner circle seed supplement position suction hole are selectively removed. In addition to the arch-breaking nails and the mounting holes (13-4), the inner and outer double circle suction hole seed taking disc is provided with an equal number of inner circle suction holes (13-1) and outer circle suction holes (13-2), which serve as the inner circle seed supplement position suction holes and the outer circle sowing position suction holes, respectively.

[0023] The second embodiment of the present invention provides a method for rapid and automatic reseeding of a pneumatic cotton hole seeder, which can achieve automatic and rapid reseeding of empty holes and missed holes, alleviate the problem of missed holes caused by differences in the physical properties of cotton seeds and system problems of the hole seeder itself, and improve its seeding accuracy on the film.

[0024] like Figure 8 As shown, the computer is connected with the missed seeding monitoring device and the reseeding device respectively through a microcontroller, and uses a micro-capacitor acquisition module and a capacitive sensor to obtain the seed taking status of the cotton seeds carried by the outer circle suction holes in real time, and sends a reseeding driving signal based on this, and then controls the forced seed clearing driving device to drive the selective forced seed clearing mechanism to selectively clear the cotton seeds carried by the inner circle suction holes, thereby controlling the target cotton seeds to be planted (the cotton seeds carried by the inner circle suction holes or the cotton seeds carried by the outer circle suction holes), and when the cotton seeds carried by the outer circle suction holes are in the state of missed seeding, the cotton seeds carried by the inner circle suction holes are used to replace them to complete a seeding, thereby realizing automatic and rapid reseeding of missed seeds.

[0025] like Fig. 9 and 10 As shown, taking a pair of corresponding inner and outer circle suction holes as an example, during normal sowing operations in the field, the inner and outer double circle suction hole seed taking disc, under the action of the negative pressure of the air chamber, completes the filling of the outer circle normal sowing position suction holes and the inner circle supplementary seed position suction holes through the seed filling area (I), then completes the seed clearing in the seed clearing area (II), enters the missed sowing detection area (IV) through the seed carrying area (III), and completes the capacitance signal collection and analysis processing. If it is determined that the seed taking state is a single seed and there is no seed supplement drive signal, the forced seed clearing drive device does not operate, the selective forced seed clearing mechanism is in the seed clearing position, the cotton seeds carried by the inner circle seed supplement position suction holes are cleared, and the cotton seeds carried by the outer circle suction holes are used as the cotton seeds to be sown, and one sowing is completed under the action of the outer circle suction hole block (16-1); if it is determined that there is missed sowing, the forced seed clearing drive device indirectly drives the selective forced seed clearing mechanism from the seed clearing position to the non-seed clearing position through the rotating shaft, and the cotton seeds carried by the inner circle seed supplement position suction holes are not cleared, and they are retained as the cotton seeds to be sown, so as to replace the cotton seeds carried by the corresponding outer circle normal sowing position suction holes to complete one sowing under the action of the inner circle suction hole block (16-2), thereby realizing missed sowing of the outer circle normal sowing position suction holes.

Claims

1. A pneumatic cotton hole seeder rapid automatic reseeding device, characterized in that The reseeding device is composed of an inner and outer double-circle suction hole seed-taking disc, a selective forced seed-clearing mechanism, and a forced seed-clearing driving device. The inner and outer double-circle suction hole seed-taking disc is provided with an inner and outer double-circle suction hole, which are used as normal sowing position suction holes and reseeding position suction holes respectively, and can be used for supplying and dropping seeds in normal sowing operations and missed sowing and reseeding operations; the selective forced seed-clearing mechanism is in an arc shape as a whole, and is connected to the forced seed-clearing driving device through a rotating shaft, and can realize a specific angle of rotation (from the seed-clearing position to the non-seed-clearing position or from the non-seed-clearing position to the seed-clearing position); the forced seed-clearing driving device is connected to a microcontroller, and can indirectly control the selective forced seed-clearing mechanism through a rotating shaft to realize the conversion between the seed-clearing position and the non-seed-clearing position, thereby realizing the selective seed-clearing of the cotton seeds carried by the inner circle reseeding position suction hole.

2. A method for rapid and automatic reseeding of pneumatic cotton seed drills, characterized in that During the sowing operation, the inner and outer double-circle suction hole seed-taking discs, under the action of negative pressure, complete the filling of seeds in the outer circle normal sowing position suction holes and the inner circle supplementary sowing position suction holes in the seed chamber, and then complete the seed clearing and missed sowing detection in the seed clearing area and the missed sowing detection area; if it is judged that the seed taking state is single-grain and there is no supplementary sowing drive signal, the forced seed clearing drive device does not act, and the selective forced seed clearing mechanism is in the seed clearing position, and the cotton seeds carried by the inner circle supplementary sowing position suction holes are cleared, and the cotton seeds carried by the outer circle suction holes are used as the cotton seeds to be sown to complete a sowing operation; if it is judged to be missed sowing, the forced seed clearing drive device indirectly drives the selective forced seed clearing mechanism from the seed clearing position to the non-seed clearing position through the rotating shaft, and the cotton seeds carried by the inner circle supplementary sowing position suction holes are not cleared, and they are retained as the cotton seeds to be sown, so as to replace the cotton seeds carried by the corresponding outer circle normal sowing position suction holes to complete a sowing operation, thereby realizing the missed sowing and reseeding of the corresponding outer circle normal sowing position suction holes.

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