A film-side furrow seeding and film mulching device for dryland millet

Abstract

The present invention belongs to the technical field of furrow seeding and film mulching, and particularly relates to a film-side furrow seeding and film mulching device for dryland millet; it includes a traction vehicle frame and two soil covering mechanisms arranged left and right on the traction vehicle frame. The soil covering mechanism includes a V-shaped conveying cylinder. Along the moving direction of the traction vehicle frame, the front part of the V-shaped conveying cylinder is a furrowing box, and the rear part is a discharge cylinder; a winding and unwinding roller is installed in the V-shaped opening of the V-shaped conveying cylinder on the traction vehicle frame, and a guiding roller is installed below the winding and unwinding roller; a feeding mechanism and a seeding mechanism arranged one above the other are provided behind each V-shaped conveying cylinder, and a linkage mechanism is arranged between the feeding mechanism and the seeding mechanism, so that the seeding action of the seeding mechanism and the material release action of the feeding mechanism are linked through the linkage mechanism; for this film-side furrow seeding and film mulching device for dryland millet, the film-breaking cone can vertically penetrate the film and then insert into the soil every time sowing is carried out, and the tearing range of the film is reduced through this sowing method.

Description

Technical Field

[0001] The present invention belongs to the technical field of furrow seeding and film mulching, and particularly relates to a film-side furrow seeding and film mulching device for dryland millet. Background Art

[0002] Currently, millet is planted in dryland by a furrow seeding and film mulching machine. The planting process is as follows: first, the reclamation push plate on the furrow seeding and film mulching machine turns over the field to form planting gullies, then a film is laid on the gullies, and soil is spread above the film at the gully. Then, the seeding duckbill with seeds pierces through the film to sow the seeds on the gullies. However, it is difficult to adjust the amount of soil spread above the film at the gully by the current furrow seeding and film mulching machine, resulting in difficulty for people to adjust the amount of soil spread according to the seed variety or seasonal temperature to keep the seeds in a good growth environment.

[0003] After retrieval, the patent with the publication number CN101960942B discloses a cotton furrow seeding and film mulching method suitable for saline-alkali land. The application of the furrow seeding and film mulching machine in this method can effectively inhibit the ineffective evaporation of the soil and can effectively inhibit the migration of salts to the plough layer in areas with high soil salt content. However, it is difficult to avoid the problem that the disc-type seeding duckbill of the furrow seeding and film mulching machine pierces a large area of the film during seeding. When the furrow seeding and film mulching machine is seeding, generally, the disc-type duckbill on it is controlled to rotate, and the duckbill inserts into the ground to pierce the film and sow the seeds in the soil. However, after the duckbill finishes seeding, the seeding duckbill continues to rotate and will cut a large area of the film, making the film opening larger, resulting in difficulty in maintaining the temperature and humidity inside the film and affecting the normal growth of crops. For this reason, we provide a film-side furrow seeding and film mulching device for dryland millet to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve the problem that the disc-type seeding duckbill of the furrow seeding and film mulching machine in the prior art pierces a large area of the film during seeding.

[0005] The present invention provides the following technical solution: a film-side furrow seeding and film mulching device for dryland millet, including a towing frame and two soil covering mechanisms arranged left and right on the towing frame. The soil covering mechanism includes a V-shaped conveying cylinder. Along the moving direction of the towing frame, the front part of the V-shaped conveying cylinder is a ditch opening box, and the rear part is a discharge cylinder;

[0006] A winding and unwinding roller is installed in the V-shaped opening of the V-shaped conveying cylinder on the towing frame, and a guiding roller is installed below the winding and unwinding roller. The guiding roller is in front of and lower than the outlet of the discharge cylinder relative to the outlet of the discharge cylinder; the film on the winding and unwinding roller unfolds and passes below the outlet of the discharge cylinder after passing around the guiding roller;

[0007] Behind each V-shaped conveying cylinder, there is a feeding mechanism and a seeding mechanism arranged one above the other. A linkage mechanism is arranged between the feeding mechanism and the seeding mechanism, and through the linkage mechanism, the seeding action of the seeding mechanism and the material release action of the feeding mechanism are linked.

[0008] Furthermore, a blade conveyor is installed inside the front cylinder body of the V-shaped conveying cylinder. One end of the blade conveyor is connected to the ditching box, and the other end extends to the corner of the V-shaped conveying cylinder. The rear cylinder body of the V-shaped conveying cylinder is connected to a discharge cylinder one and a discharge cylinder two, which are divided into two channels. A rotating rod is rotatably connected at the intersection of the discharge cylinder one and the discharge cylinder two. A diversion plate is fixed on the rotating rod, and the inlet sizes of the discharge cylinder one and the discharge cylinder two are adjusted by the swing of the diversion plate.

[0009] Furthermore, a gear one is fixed at one end of the rotating rod. A limiting rod one is fixed outside the discharge cylinder one and the discharge cylinder two. A rack plate one is slidably connected to the limiting rod one. The rack plate one is meshed with the gear one. A threaded rod one is arranged above the limiting rod one. The threaded rod one is rotatably connected to the discharge cylinder one and the discharge cylinder two, and the threaded rod one is threadedly connected to the rack plate one.

[0010] Furthermore, the seeding mechanism includes a fixed cylinder, a seeding pipe, and a lifting cylinder. The fixed cylinder is fixed to the V-shaped conveying cylinder; the lifting cylinder is rotatably sleeved outside the seeding pipe. Retaining rings are fixed at the upper and lower ends of the seeding pipe where the lifting cylinder is located. The lifting cylinder is slidably connected to the fixed cylinder. Two seeding grooves are opened at the lower end of the seeding pipe, and a film-breaking cone is fixed at the bottom of the seeding pipe.

[0011] Furthermore, two hinge plates are hinged to the lower end of the lifting cylinder by pins. Below the two hinge plates, retaining plates adapted to the seeding grooves are fixed. Spring steel sheets are arranged outside the two hinge plates, and the two spring steel sheets are fixed to the outer surface of the lifting cylinder. Two arc-shaped inclined blocks are fixed to the outer surface of the seeding pipe, and pressure-receiving blocks corresponding to the positions of the arc-shaped inclined blocks are fixed to the outer surfaces of the two retaining plates.

[0012] Furthermore, two sliding columns are fixed to the outer surface of the seeding pipe. Two straight sliding grooves adapted to the sliding columns are opened on the cylinder wall of the lifting cylinder. The two sliding columns are respectively slidably matched with the two straight sliding grooves. Two L-shaped sliding grooves adapted to the sliding columns are opened on the cylinder wall of the fixed cylinder. The two sliding columns are respectively slidably connected in the two L-shaped sliding grooves.

[0013] Further, the linkage mechanism includes a first support frame fixed on the fixed cylinder. There is a fifth limiting rod fixed between the first support frame and the fixed cylinder. A fixed block is fixed on the outer surface of the lifting cylinder, and the fixed block is slidably sleeved on the fifth limiting rod. A second support frame is fixed on the first support frame, a support plate is fixed on the second support frame, a motor is fixed on the support plate, the output end of the motor is connected with a second threaded rod, a threaded block is threadedly connected to the second threaded rod, two second limiting rods are fixed above the second support frame, both of the two second limiting rods are slidably connected with the threaded block, a hinge rod is hinged to the lower part of the threaded block through a pin shaft, and the hinge rod is hinged to the fixed block.

[0014] Further, the blanking mechanism includes a transfer barrel and a collecting hopper, and the collecting hopper is fixed to the V-shaped conveying cylinder; the transfer barrel is fixed below the collecting hopper, a discharge hopper is fixed below the transfer barrel, the collecting hopper, the transfer barrel and the discharge hopper are communicated, two wedge-shaped baffles are arranged below the discharge hopper, two fixing plates are fixed on the outer surface of the first support frame, two fourth limiting rods are fixedly connected between the two fixing plates, both of the two wedge-shaped baffles are slidably connected with the two fourth limiting rods, and two telescopic tension springs are sleeved on both of the two fourth limiting rods, and the two telescopic tension springs are propped between the two wedge-shaped baffles.

[0015] Further, a rotating cylinder is rotatably connected to the inner wall of the transfer barrel, a material groove is formed on the outer surface of the rotating cylinder, two second gears are fixed at both ends of the rotating cylinder, two third limiting rods are fixed on the outer surface of the support plate, a moving plate is arranged above the support plate, both of the two third limiting rods are slidably connected with the moving plate, two first telescopic springs are sleeved on the outer surfaces of both of the two third limiting rods, and the two first telescopic springs are propped between the support plate and the moving plate. Two rack plates are fixed on the outer surface of the moving plate, and the two rack plates are respectively meshed with the two second gears.

[0016] Further, a compaction mechanism is arranged behind the first support frame. The compaction mechanism includes a fixed frame and a pressing wheel. The fixed frame is fixedly connected with the first support frame. A sixth limiting rod and a third threaded rod are fixed on the top of the wheel frame of the pressing wheel. The sixth limiting rod is slidably connected with the fixed frame, and the third threaded rod is threadedly connected with the fixed frame.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] By providing a blanking mechanism and a seeding mechanism, during furrow seeding and film mulching, the lifting cylinder is controlled to move downward so that the film piercing cone penetrates through the film and inserts into the soil. At this time, the sliding column slides in the L-shaped chute and is squeezed by the L-shaped chute, causing the sliding column to slide in the straight chute, thereby rotating and misaligning the seeding pipe and the lifting cylinder, and causing the pressure-receiving block on the material blocking plate to be squeezed by the arc-shaped inclined block and move away from the seeding pipe. Thus, the two material blocking plates will push aside the soil at the position of the film piercing cone. At this time, the seeds in the seeding pipe will slide down into the soil through the two seeding grooves, thereby completing the seeding work. And each time seeding is carried out, the film piercing cone vertically penetrates the film and then inserts into the soil. By this seeding method, the tearing range of the film is reduced, thus effectively avoiding the problem that the large opening torn by the duckbill during seeding causes excessive loss of temperature and humidity inside the film.

[0019] By providing a soil covering mechanism, during furrow seeding and film mulching, the device is towed to make the ditching box open ditches and form ridges in the field. The ditching box shovels up the soil and transports it to the corner of the V-shaped conveying cylinder through the blade conveyor. The soil in the V-shaped conveying cylinder will be allocated by the shunt plate. Part of the soil is discharged from the discharge cylinder II to suppress the side of the film, and the other part of the soil is discharged from the discharge cylinder I to cover the upper part of the film at the gully. By controlling the rotation of the shunt plate, the flow rate of the soil in the V-shaped conveying cylinder is controlled, so that the amount of soil covering the upper part of the film at the gully can be controlled, enabling agricultural workers to control the amount of soil spread on the seeds according to the seed variety or seasonal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the first perspective of the three-dimensional structure diagram of the present invention;

[0021] Figure 2 is the second perspective of the three-dimensional structure diagram of the present invention;

[0022] Figure 3 is the schematic diagram of the winding and unwinding roller and the guiding roller;

[0023] Figure 4 is the three-dimensional structure schematic diagram of the soil covering mechanism;

[0024] Figure 5 is the three-dimensional structure schematic diagram inside the V-shaped conveying cylinder;

[0025] Figure 6 is the three-dimensional structure schematic diagram of the first rack plate;

[0026] Figure 7 is the three-dimensional structure schematic diagram of the shunt plate;

[0027] Figure 8 is the three-dimensional structure schematic diagram of the linkage mechanism, the blanking mechanism and the seeding mechanism;

[0028] Figure 9 is the three-dimensional structure schematic diagram of the blanking mechanism;

[0029] Figure 10 Schematic diagram of the three-dimensional structure inside the transfer barrel;

[0030] Figure 11 Schematic diagram of two wedge-shaped baffles opening against the elastic force of the telescopic tension spring;

[0031] Figure 12 Schematic diagram of the three-dimensional structure of the seeding mechanism;

[0032] Figure 13 Schematic diagram of the split structure of the seeding mechanism;

[0033] Figure 14 Schematic diagram of the three-dimensional structure of the film-breaking cone;

[0034] Figure 15 Schematic diagram of the split structure of the seeding tube and the lifting cylinder.

[0035] In the figure: 1 - towing vehicle frame; 2 - wheels; 3 - winding and unwinding roller; 4 - guiding roller;

[0036] 5 - soil covering mechanism; 501 - V-shaped conveying cylinder; 502 - blade conveyor; 503 - ditching box; 504 - discharge cylinder 1; 505 - discharge cylinder 2; 506 - rack plate 1; 507 - threaded rod 1; 508 - limiting rod 1; 509 - rotating rod; 510 - shunt plate; 511 - gear 1;

[0037] 6 - linkage mechanism; 601 - support frame 1; 602 - support frame 2; 603 - support plate; 604 - motor; 605 - threaded rod 2; 606 - threaded block; 607 - limiting rod 2; 608 - limiting rod 3; 609 - telescopic spring 1; 610 - moving plate;

[0038] 7 - feeding mechanism; 701 - transfer barrel; 702 - aggregate hopper; 703 - discharge hopper; 704 - rotating cylinder; 705 - gear 2; 706 - material groove; 707 - fixing plate; 708 - limiting rod 4; 709 - wedge-shaped baffle; 710 - telescopic tension spring; 711 - rack plate 2;

[0039] 8 - seeding mechanism; 801 - seeding tube; 802 - lifting cylinder; 803 - fixing block; 804 - fixing cylinder; 805 - limiting rod 5; 806 - hinge rod; 807 - sliding column; 808 - straight chute; 809 - L-shaped chute; 810 - retaining ring; 811 - film-breaking cone; 812 - arc-shaped inclined block; 813 - seeding groove; 814 - baffle plate; 815 - hinge plate; 816 - pressure-receiving block; 817 - spring steel sheet;

[0040] 9 - compaction mechanism; 901 - fixing frame; 902 - pressing wheel; 903 - threaded rod 3; 904 - limiting rod 6. Detailed implementation mode

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown: A film-side furrow sowing and film mulching device for dryland millet includes a traction vehicle frame 1 and two soil covering mechanisms 5 arranged left and right on the traction vehicle frame 1. The soil covering mechanism 5 includes a V-shaped conveying cylinder 501. Along the moving direction of the traction vehicle frame 1, the front part of the V-shaped conveying cylinder 501 is a ditching box 503, and the rear part is a discharging cylinder; a winding and unwinding roller 3 is installed in the V-shaped opening of the V-shaped conveying cylinder 501 on the traction vehicle frame 1, and a guiding roller 4 is installed below the winding and unwinding roller 3. The guiding roller 4 is in front of and lower than the outlet of the discharging cylinder relative to the outlet of the discharging cylinder; the film on the winding and unwinding roller 3 unfolds and passes under the guiding roller 4 and then passes under the outlet of the discharging cylinder; behind each V-shaped conveying cylinder 501, a feeding mechanism 7 and a sowing mechanism 8 are arranged one above the other, and a linkage mechanism 6 is arranged between the feeding mechanism 7 and the sowing mechanism 8, so that the sowing action of the sowing mechanism 8 and the material releasing action of the feeding mechanism 7 are linked through the linkage mechanism 6.

[0043] There are two rows of wheels 2 at the bottom of the traction vehicle frame 1, and the soil covering mechanism 5, the feeding mechanism 7 and the sowing mechanism 8 are located between the two rows of wheels 2.

[0044] When the traction vehicle frame 1 moves, the film on the winding and unwinding roller 3 is passed under the guiding roller 4 and laid on the land. By driving the traction vehicle frame 1 through a traction vehicle, when carrying out furrow sowing and film mulching, the ditching box 503 ditches and ridges the field, and the guiding roller 4 spreads the film flat on the land; the feeding mechanism 7 puts materials (seeds) into the sowing mechanism 8, and the sowing mechanism 8 pierces the film and buries the seeds in the soil.

[0045] As Figure 4 、 Figure 5 、 Figure 7As shown in the figure: A vane conveyor 502 is installed inside the front cylinder body of the V-shaped conveyor cylinder 501. One end of the vane conveyor 502 is connected to the ditching box 503, and the other end extends to the corner of the V-shaped conveyor cylinder 501. The rear cylinder body of the V-shaped conveyor cylinder 501 is connected to the discharge cylinder one 504 and the discharge cylinder two 505, which are divided into two channels. A rotating rod 509 is rotatably connected at the intersection of the discharge cylinder one 504 and the discharge cylinder two 505. A diverter plate 510 is fixed on the rotating rod 509. The inlet sizes of the discharge cylinder one 504 and the discharge cylinder two 505 are adjusted by the swing of the diverter plate 510. Towing the device causes the ditching box 503 to ditch and ridge the field. The soil shoveled by the ditching box 503 is transmitted to the corner of the V-shaped conveyor cylinder 501 through the vane conveyor 502. The soil falls along the rear cylinder body of the V-shaped conveyor cylinder 501. The soil in the V-shaped conveyor cylinder 501 will be distributed by the diverter plate 510. Part of the soil is discharged from the discharge cylinder two 505 to suppress the side of the film, and the other part of the soil is discharged from the discharge cylinder one 504 to cover the upper part of the film at the gully.

[0046] As Figure 6 shown: One end of the rotating rod 509 is fixed with a gear one 511. A limiting rod one 508 is fixed outside the discharge cylinder one 504 and the discharge cylinder two 505. A rack plate one 506 is slidably connected to the limiting rod one 508. The rack plate one 506 is meshed with the gear one 511. A threaded rod one 507 is arranged above the limiting rod one 508. The threaded rod one 507 is rotatably connected to the discharge cylinder one 504 and the discharge cylinder two 505. The threaded rod one 507 is threadedly connected to the rack plate one 506. By rotating the threaded rod one 507, the rack plate one 506 is driven to move. When the rack plate one 506 moves, the diverter plate 510 is driven to rotate through the gear one 511, so as to control the amount of soil in the V-shaped conveyor cylinder 501 falling into the discharge cylinder one 504 and the discharge cylinder two 505, and thus the amount of soil covering the upper part of the film at the gully can be controlled, enabling the agricultural workers to control the amount of soil spread on the seeds according to the seed variety or the seasonal temperature.

[0047] As Figure 4 , Figure 12 , Figure 13 shown: The sowing mechanism 8 includes a fixed cylinder 804, a sowing pipe 801 and a lifting cylinder 802. The fixed cylinder 804 is fixed to the V-shaped conveyor cylinder 501; the lifting cylinder 802 is rotatably sleeved outside the sowing pipe 801. Stopping rings 810 are fixed at the upper and lower ends of the sowing pipe 801 inside the lifting cylinder 802. The stopping rings 810 limit the up and down sliding of the lifting cylinder 802. The lifting cylinder 802 is slidably connected to the fixed cylinder 804. Two sowing grooves 813 are opened at the lower end of the sowing pipe 801. A film-breaking cone 811 is fixed at the bottom of the sowing pipe 801. By providing the film-breaking cone 811, when the lifting cylinder 802 drives the sowing pipe 801 to move downward, the film-breaking cone 811 can quickly break through the film and insert into the soil.

[0048] As shown in Figure 13 , Figure 14 , Figure 15 : At the lower end of the lifting cylinder 802, two hinge plates 815 are hinged by a pin shaft. Below the two hinge plates 815, baffle plates 814 adapted to the sowing grooves 813 are fixed. Spring steel sheets 817 are arranged outside the two hinge plates 815, and the two spring steel sheets 817 are fixed on the outer surface of the lifting cylinder 802. Two arc-shaped inclined blocks 812 are fixed on the outer surface of the sowing pipe 801, and pressure-receiving blocks 816 corresponding to the positions of the arc-shaped inclined blocks 812 are fixed on the outer surfaces of the two baffle plates 814. When the two baffle plates 814 block the two sowing grooves 813 under the elastic force of the spring steel sheets 817, the seeds in the sowing pipe 801 cannot be discharged through the sowing grooves 813. When the lifting cylinder 802 and the sowing pipe 801 rotate relative to each other, the arc-shaped inclined blocks 812 on the sowing pipe 801 push open the baffle plates 814 by pushing the pressure-receiving blocks 816, and the sowing grooves 813 are opened. After the lifting cylinder 802 and the sowing pipe 801 rotate and reset, after the pressure-receiving blocks 816 are not squeezed by the arc-shaped inclined blocks 812, the baffle plates 814 will be reset under the spring pressure of the spring steel sheets 817, so that the baffle plates 814 fit the sowing pipe 801 to block the sowing grooves 813.

[0049] As shown in Figure 12 , Figure 13 : Two sliding columns 807 are fixed on the outer surface of the sowing pipe 801. Two straight sliding grooves 808 adapted to the sliding columns 807 are opened on the barrel wall of the lifting cylinder 802. The two sliding columns 807 are respectively in sliding fit with the two straight sliding grooves 808. Two L-shaped sliding grooves 809 adapted to the sliding columns 807 are opened on the barrel wall of the fixed cylinder 804. The two sliding columns 807 are respectively slidably connected in the two L-shaped sliding grooves 809. When the lifting cylinder 802 moves downward, the downward movement of the lifting cylinder 802 drives the sowing pipe 801 to move downward accordingly, so that the film-breaking cone 811 penetrates the film and inserts into the soil. When the sliding column 807 moves to the horizontal and inclined groove part of the L-shaped sliding groove 809, at this time, the sliding column 807 slides in the L-shaped sliding groove 809 and is squeezed by the L-shaped sliding groove 809, so that the sliding column 807 slides in the straight sliding groove 808, thereby causing the sowing pipe 801 to rotate and be misaligned with the lifting cylinder 802, so that the pressure-receiving blocks 816 on the baffle plates 814 are squeezed by the arc-shaped inclined blocks 812 and move away from the sowing pipe 801. Thus, the two baffle plates 814 will push aside the soil at the film-breaking cone 811. At this time, the seeds inside the sowing pipe 801 will slide through the two sowing grooves 813 into the soil, thereby completing the sowing work.

[0050] As shown in Figure 8 , Figure 9 , Figure 13As shown in the figure: The linkage mechanism 6 includes a first support frame 601 fixed on the fixed cylinder 804. A fifth limiting rod 805 is fixed between the first support frame 601 and the fixed cylinder 804. A fixed block 803 is fixed on the outer surface of the lifting cylinder 802. The fixed block 803 is slidably sleeved on the fifth limiting rod 805. A second support frame 602 is fixed on the first support frame 601. A support plate 603 is fixed on the second support frame 602. A motor 604 is fixed on the support plate 603. The output end of the motor 604 is connected to a second threaded rod 605. A threaded block 606 is threadedly connected to the second threaded rod 605. Two second limiting rods 607 are fixed above the second support frame 602. Both of the two second limiting rods 607 are slidably connected to the threaded block 606. The lower part of the threaded block 606 is hinged to a hinge rod 806 through a pin shaft. The hinge rod 806 is hinged to the fixed block 803. When sowing, control the motor 604 to drive the second threaded rod 605 to rotate. The rotation of the second threaded rod 605 drives the threaded block 606 to move, so that the threaded block 606 drives the fixed block 803 through the hinge rod 806 to move the lifting cylinder 802 downward. The downward movement of the lifting cylinder 802 drives the sowing pipe 801 to move downward accordingly, so that the film-breaking cone 811 penetrates through the film and inserts into the soil.

[0051] As Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown in the figure: The feeding mechanism 7 includes a transfer barrel 701 and a collecting hopper 702. The collecting hopper 702 is fixed to the V-shaped conveying cylinder 501. The transfer barrel 701 is fixed below the collecting hopper 702. A discharge hopper 703 is fixed below the transfer barrel 701. The collecting hopper 702, the transfer barrel 701 and the discharge hopper 703 are communicated with each other. Two wedge-shaped baffles 709 are arranged below the discharge hopper 703. Two fixing plates 707 are fixed on the outer surface of the first support frame 601. Two fourth limiting rods 708 are fixedly connected between the two fixing plates 707. Both of the two wedge-shaped baffles 709 are slidably connected to the two fourth limiting rods 708. Two telescopic tension springs 710 are sleeved on both of the two fourth limiting rods 708. The two telescopic tension springs 710 are connected between the two wedge-shaped baffles 709. After the sowing pipe 801 moves to the top, it will push open the two wedge-shaped baffles 709 and insert the discharge hopper 703 into the sowing pipe 801. After the seeds in the collecting hopper 702 are conveyed to the sowing pipe 801 through the discharge hopper 703 in the trough 706, the seeds finally fall to the bottom of the sowing pipe 801 and wait for the next sowing operation. After the sowing pipe 801 moves away from the discharge hopper 703, the two wedge-shaped baffles 709 are reset under the elastic tension of the telescopic tension springs 710, so that the two wedge-shaped baffles 709 are closed and block the lower port of the discharge hopper 703.

[0052] The inner wall of the transfer bucket 701 is rotatably connected to a rotating cylinder 704. A material groove 706 is formed on the outer surface of the rotating cylinder 704. Two second gears 705 are fixed at both ends of the rotating cylinder 704. Two third limiting rods 608 are fixed on the outer surface of the support plate 603. Above the support plate 603 is arranged a moving plate 610. Both of the two third limiting rods 608 are slidably connected to the moving plate 610. A first telescopic spring 609 is sleeved on the outer surface of each of the two third limiting rods 608. The two first telescopic springs 609 are propped between the support plate 603 and the moving plate 610. Two second rack plates 711 are fixed on the outer surface of the moving plate 610. The two second rack plates 711 are respectively engaged with the two second gears 705. After the sowing pipe 801 moves to the top, it will push open two wedge-shaped baffles 709 and make the discharging hopper 703 insert into the sowing pipe 801. When the motor 604 controls the second threaded rod 605 to drive the threaded block 606 to move rightward, the threaded block 606 squeezes the moving plate 610, so that the second rack plate 711 on the moving plate 610 drives the second gear 705 to rotate, thereby flipping the rotating cylinder 704, and making the material groove 706 located at the aggregate hopper 702 flip into the discharging hopper 703. Thus, the material groove 706 conveys the seeds in the aggregate hopper 702 to the sowing pipe 801 through the discharging hopper 703. The seeds finally fall to the bottom of the sowing pipe 801 and wait for the next sowing operation. After the moving plate 610 is no longer squeezed by the threaded block 606, the moving plate 610 is reset by the spring pressure of the first telescopic spring 609, so that the second rack plate 711 drives the second gear 705 to reverse the rotating cylinder 704, and makes the material groove 706 move to the position of the aggregate hopper 702.

[0053] As Figure 2 and Figure 8 shown in the figure: A compaction mechanism 9 is arranged behind the first support frame 601. The compaction mechanism 9 includes a fixed frame 901 and a pressing wheel 902. The fixed frame 901 is fixedly connected to the first support frame 601. A sixth limiting rod 904 and a third threaded rod 903 are fixed at the top of the wheel frame of the pressing wheel 902. The sixth limiting rod 904 is slidably connected to the fixed frame 901. The third threaded rod 903 is threadedly connected to the fixed frame 901. Through the arrangement of the pressing wheel 902, the pressing wheel 902 will squeeze the soil covering on the seeds, making the soil covering compact, thereby improving the heat preservation effect on the seeds. By rotating the third threaded rod 903, the height of the pressing wheel 902 can be adjusted, so that the extrusion force of the pressing wheel 902 on the soil covering can be adjusted.

[0054] The working principle of a film-side furrow seeding and film mulching device for dryland millet is as follows: When in use, the film on the winding and unwinding roller 3 is passed under the guiding roller 4 and laid on the land. The traction vehicle drives the traction vehicle frame 1 to move. When conducting furrow seeding and film mulching, the furrowing box 503 furrows and ridges the field. The furrowing box 503 shovels up the soil and transports it to the corner of the V-shaped conveying cylinder 501 through the blade conveyor 502. The soil in the V-shaped conveying cylinder 501 will be allocated by the diversion plate 510. Part of the soil is discharged from the discharge cylinder II 505 to press the side of the film, and the other part of the soil is discharged from the discharge cylinder I 504 to cover the film above the gully. By controlling the rotation angle of the diversion plate 510, the diversion volume of the soil in the V-shaped conveying cylinder 501 can be controlled, so that the amount of soil covering the film above the gully can be controlled.

[0055] When sowing, control the motor 604 to drive the second threaded rod 605 to rotate. The rotation of the second threaded rod 605 drives the threaded block 606 to move, so that the threaded block 606 pushes the fixed block 803 through the hinge rod 806 to make the lifting cylinder 802 move downward. The downward movement of the lifting cylinder 802 drives the sowing pipe 801 to move downward accordingly, so that the film-breaking cone 811 penetrates through the film and inserts into the soil. At this time, the sliding column 807 slides in the horizontal and inclined groove parts of the L-shaped chute 809 and is squeezed by the L-shaped chute 809, so that the sliding column 807 slides in the straight chute 808, thereby causing the sowing pipe 801 to rotate and be misaligned with the lifting cylinder 802, and the pressure-receiving block 816 on the material-blocking plate 814 is squeezed by the arc-shaped inclined block 812 and moves away from the sowing pipe 801. Thus, the two material-blocking plates 814 will push aside the soil at the film-breaking cone 811. At this time, the seeds in the sowing pipe 801 will slide down into the soil through the two sowing grooves 813, thereby completing the sowing work. Then control the motor 604 to reverse. The threaded block 606 pulls the fixed block 803 through the hinge rod 806 to make the lifting cylinder 802 move upward. When the sliding column 807 moves upward in the L-shaped chute 809, the sowing pipe 801 deflects and resets, and the material-blocking plate 814 fits against the bottom of the sowing pipe 801 under the spring pressure of the spring steel sheet 817, so that the two material-blocking plates 814 respectively block the two sowing grooves 813.

[0056] After the sowing tube 801 moves to the top, it will push open two wedge-shaped baffles 709, and insert the discharging hopper 703 into the sowing tube 801. When the motor 604 controls the second threaded rod 605 to drive the threaded block 606 to move to the right, the threaded block 606 pushes the moving plate 610, so that the rack plate two 711 on the moving plate 610 drives the second gear 705 to rotate, thereby flipping the rotating cylinder 704, and flipping the trough 706 located at the aggregate hopper 702 into the discharging hopper 703. Thus, the trough 706 transports the seeds in the aggregate hopper 702 to the sowing tube 801 through the discharging hopper 703. The seeds finally fall to the bottom of the sowing tube 801, waiting for the next sowing operation, so as to realize continuous sowing operation. And each time the device sows, the film-breaking cone 811 penetrates the film vertically to the ground and then inserts into the soil. By this sowing method, the tearing range of the film is reduced, thus effectively avoiding the problem that the opening of the film torn by the duckbill is too large during sowing, resulting in difficulty in maintaining the temperature and humidity inside the film.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A film-side furrow sowing and film mulching device for dryland millet, characterized in that: It includes a towing frame (1) and two soil covering mechanisms (5) arranged left and right on the towing frame (1). The soil covering mechanism (5) includes a V-shaped conveying cylinder (501). Along the moving direction of the towing frame (1), the front part of the V-shaped conveying cylinder (501) is a trench opening box (503), and the rear part is a discharge cylinder. On the towing frame (1), a winding and unwinding roller (3) is installed inside the V-shaped opening of the V-shaped conveying cylinder (501), and a guiding roller (4) is installed below the winding and unwinding roller (3). The guiding roller (4) is in front of and lower than the outlet of the discharge cylinder relative to the outlet of the discharge cylinder. The film on the winding and unwinding roller (3) unfolds and passes below the outlet of the discharge cylinder after bypassing the guiding roller (4). Behind each V-shaped conveying cylinder (501), a feeding mechanism (7) and a seeding mechanism (8) are arranged one above the other. A linkage mechanism (6) is arranged between the feeding mechanism (7) and the seeding mechanism (8) to link the seeding action of the seeding mechanism (8) and the material release action of the feeding mechanism (7) through the linkage mechanism (6). The seeding mechanism (8) includes a fixed cylinder (804), a seeding tube (801), and a lifting cylinder (802). The fixed cylinder (804) is fixed to the V-shaped conveying cylinder (501). The lifting cylinder (802) is rotatably sleeved outside the seeding tube (801). On the seeding tube (801), retaining rings (810) are fixed at the upper and lower ends of the lifting cylinder (802). The lifting cylinder (802) is slidably connected to the fixed cylinder (804). Two seeding grooves (813) are opened at the lower end of the seeding tube (801), and a film piercing cone (811) is fixed at the bottom of the seeding tube (801). At the lower end of the lifting cylinder (802), two hinge plates (815) are hinged by pins. Below the two hinge plates (815), baffle plates (814) adapted to the seeding grooves (813) are fixed. Outside the two hinge plates (815), spring steel sheets (817) are arranged. The two spring steel sheets (817) are both fixed on the outer surface of the lifting cylinder (802). On the outer surface of the seeding tube (801), two arc-shaped inclined blocks (812) are fixed. On the outer surface of each of the two baffle plates (814), pressure-receiving blocks (816) corresponding to the positions of the arc-shaped inclined blocks (812) are fixed. On the outer surface of the seeding tube (801), two sliding columns (807) are fixed. On the cylinder wall of the lifting cylinder (802), two straight sliding grooves (808) adapted to the sliding columns (807) are opened. The two sliding columns (807) are respectively in sliding fit with the two straight sliding grooves (808). On the cylinder wall of the fixed cylinder (804), two L-shaped sliding grooves (809) adapted to the sliding columns (807) are opened. The two sliding columns (807) are respectively slidably connected in the two L-shaped sliding grooves (809).

2. The film-side furrow sowing and film mulching device for dryland millet according to claim 1, wherein: A blade conveyor (502) is installed inside the front cylinder body of the V-shaped conveying cylinder (501). One end of the blade conveyor (502) is connected to the trenching box (503), and the other end extends to the corner of the V-shaped conveying cylinder (501). The rear cylinder body of the V-shaped conveying cylinder (501) is connected to the discharge cylinder one (504) and the discharge cylinder two (505) to form two channels. A rotating rod (509) is rotatably connected at the intersection of the discharge cylinder one (504) and the discharge cylinder two (505). A flow dividing plate (510) is fixed on the rotating rod (509). The inlet sizes of the discharge cylinder one (504) and the discharge cylinder two (505) are adjusted by the swing of the flow dividing plate (510).

3. The film-side furrow seeding and film mulching device for dryland millet according to claim 2, characterized in that: One end of the rotating rod (509) is fixed with a first gear (511). A first limiting rod (508) is fixed outside the discharge cylinder one (504) and the discharge cylinder two (505). A first rack plate (506) is slidably connected to the first limiting rod (508). The first rack plate (506) is engaged with the first gear (511). A first threaded rod (507) is arranged above the first limiting rod (508). The first threaded rod (507) is rotatably connected to the discharge cylinder one (504) and the discharge cylinder two (505). The first threaded rod (507) is threadedly connected to the first rack plate (506).

4. A film-side furrow sowing and film mulching device for dryland millet according to claim 1, characterized in that: The linkage mechanism (6) includes a first support frame (601) fixed on the fixed cylinder (804). A fifth limiting rod (805) is fixed between the first support frame (601) and the fixed cylinder (804). A fixed block (803) is fixed on the outer surface of the lifting cylinder (802). The fixed block (803) is slidably sleeved on the fifth limiting rod (805). A second support frame (602) is fixed on the first support frame (601). A support plate (603) is fixed on the second support frame (602). A motor (604) is fixed on the support plate (603). The output end of the motor (604) is connected with a second threaded rod (605). A threaded block (606) is threadedly connected to the second threaded rod (605). Two second limiting rods (607) are fixed above the second support frame (602). Both of the two second limiting rods (607) are slidably connected to the threaded block (606). A hinge rod (806) is hinged to the lower part of the threaded block (606) through a pin shaft. The hinge rod (806) is hinged to the fixed block (803).

5. The film-side furrow seeding and film mulching device for dryland millet according to claim 4, characterized in that: The described blanking mechanism (7) includes a transfer barrel (701) and an aggregate hopper (702). The aggregate hopper (702) is fixed to the V-shaped conveying cylinder (501); the transfer barrel (701) is fixed below the aggregate hopper (702), and a discharge hopper (703) is fixed below the transfer barrel (701). The aggregate hopper (702), the transfer barrel (701), and the discharge hopper (703) are connected and communicated. Two wedge-shaped baffles (709) are arranged below the discharge hopper (703). Two fixing plates (707) are fixed to the outer surface of the first support frame (601). Two fourth limiting rods (708) are fixedly connected between the two fixing plates (707). Both of the two wedge-shaped baffles (709) are slidably connected to the two fourth limiting rods (708). Telescopic tension springs (710) are sleeved on both of the two fourth limiting rods (708). The two telescopic tension springs (710) are connected between the two wedge-shaped baffles (709).

6. The film-side furrow sowing and film mulching device for dryland millet according to claim 5, characterized in that: A rotating cylinder (704) is rotatably connected to the inner wall of the described transfer barrel (701). A material groove (706) is formed on the outer surface of the rotating cylinder (704). Gear wheels two (705) are fixed to both ends of the rotating cylinder (704). Two third limiting rods (608) are fixed to the outer surface of the support plate (603). A moving plate (610) is arranged above the support plate (603). Both of the two third limiting rods (608) are slidably connected to the moving plate (610). Telescopic springs one (609) are sleeved on the outer surfaces of the two third limiting rods (608). The two telescopic springs one (609) are propped between the support plate (603) and the moving plate (610). Two rack plates two (711) are fixed to the outer surface of the moving plate (610). The two rack plates two (711) are respectively meshed with the two gear wheels two (705).

7. A film-side furrow sowing and film mulching device for upland millet according to claim 4, characterized in that: A compaction mechanism (9) is arranged behind the first support frame (601). The compaction mechanism (9) includes a fixed frame (901) and a pressing wheel (902). The fixed frame (901) is fixedly connected to the first support frame (601). A sixth limiting rod (904) and a third threaded rod (903) are fixed to the top of the wheel frame of the pressing wheel (902). The sixth limiting rod (904) is slidably connected to the fixed frame (901). The third threaded rod (903) is threadedly connected to the fixed frame (901).

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