Dry land millet film side furrow sowing film mulching device

Abstract

The invention belongs to the technical field of furrow sowing and film mulching, and particularly relates to a dry land millet film side furrow sowing and film mulching device. Comprising a tractor frame and two soil covering mechanisms which are arranged on the tractor frame left and right, each soil covering mechanism comprises a V-shaped conveying cylinder, and in the moving direction of the tractor frame, the front portion of each V-shaped conveying cylinder is provided with a ditching box, and the rear portion of each V-shaped conveying cylinder is provided with a discharging cylinder; a winding and unwinding roller is mounted in a V-shaped opening of the V-shaped conveying cylinder on the traction frame, and a guide roller is mounted below the winding and unwinding roller; a discharging mechanism and a seeding mechanism which are arranged up and down are arranged behind each V-shaped conveying cylinder, a linkage mechanism is arranged between the discharging mechanism and the seeding mechanism, and the seeding action of the seeding mechanism and the material releasing action of the discharging mechanism are linked through the linkage mechanism; according to the dry land millet film side ditch sowing and film covering device, the film breaking cone can penetrate through a film in the mode of being perpendicular to the ground and then is inserted into the land during sowing every time, and the tearing range of the film is reduced through the sowing mode.

Description

Technical Field

[0001] The invention belongs to the technical field of furrow sowing and film covering, and in particular relates to a film covering device for dryland millet film-side furrow sowing. Background Art

[0002] At present, millet is planted in dry land by means of a furrow sowing and covering machine. The planting process is to first turn over the field by means of the cultivating push plate on the furrow sowing and covering machine to form planting furrows, then spread a film on the furrows, spread soil on top of the film at the furrows, and then use a sowing duckbill with seeds to pierce the film and sow the seeds in the furrows. However, the current furrow sowing and covering machine is difficult to adjust the amount of soil spread on top of the film at the furrows, making it difficult for people to adjust the amount of soil spread according to the seed variety or seasonal temperature to put the seeds in a good growth environment.

[0003] After searching, the patent with announcement number CN101960942B discloses a method of furrow sowing and film covering for cotton suitable for saline-alkali land. The application of the furrow sowing and film covering machine in this method can effectively inhibit ineffective evaporation of soil, and can effectively inhibit the migration of salt to the tillage layer in areas with high soil salt content. However, the furrow sowing and film covering machine is difficult to avoid the problem of puncturing a large area of ​​film during sowing due to the wheel-type sowing duckbill. When the furrow sowing and film covering machine is sowing, the wheel-type duckbill on it is generally controlled to rotate, and the duckbill is inserted into the ground to puncture the film and sow the seeds in the soil. However, after the duckbill sowing is completed, the sowing duckbill continues to rotate and will scratch a large area of ​​the film, making the film opening larger, making it difficult to maintain the temperature and humidity inside the film, affecting the normal growth of crops. To this end, we provide a dryland millet film-side furrow sowing and film covering device to solve the above problems. Summary of the invention

[0004] The invention aims to solve the problem that a large-area film is punctured during sowing by a wheel-disk type duckbill sowing machine in the prior art.

[0005] The present invention provides the following technical solution: a film covering device for side furrow sowing of millet in dryland, comprising a traction frame and two soil covering mechanisms mounted on the traction frame and arranged on the left and right, the soil covering mechanism comprising a V-shaped conveying cylinder, along the moving direction of the traction frame, the front part of the V-shaped conveying cylinder is a furrowing box, and the rear part is a discharge cylinder; A retracting roller is installed in the V-shaped opening of the V-shaped conveying cylinder on the traction frame, and a guide roller is installed below the retracting roller. The guide roller is located in front of the outlet of the discharge cylinder and is lower than the outlet of the discharge cylinder. After the film on the retracting roller is unfolded, it bypasses the guide roller and passes under the outlet of the discharge cylinder. A feeding mechanism and a sowing mechanism arranged one above the other are arranged behind each V-shaped conveying cylinder, and a linkage mechanism is arranged between the feeding mechanism and the sowing mechanism, through which the sowing action of the sowing mechanism and the material releasing action of the feeding mechanism are linked.

[0006] Furthermore, a blade conveyor is installed in the front cylinder body of the V-shaped conveying cylinder, one end of the blade conveyor is connected to the groove 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 the discharge cylinder one and the discharge cylinder two to be divided into two channels. The intersection of the discharge cylinder one and the discharge cylinder two is rotatably connected with a rotating rod, and a diverter plate is fixed on the rotating rod. The size of the entrance of the discharge cylinder one and the discharge cylinder two is adjusted by swinging the diverter plate.

[0007] Furthermore, a gear 1 is fixed to one end of the rotating rod, a limiting rod 1 is fixed to the outside of the discharge cylinder 1 and the discharge cylinder 2, a rack plate 1 is slidably connected to the limiting rod 1, the rack plate 1 is meshed with the gear 1, a threaded rod 1 is arranged above the limiting rod 1, the threaded rod 1 is rotatably connected to the discharge cylinder 1 and the discharge cylinder 2, and the threaded rod 1 is threadedly connected to the rack plate 1.

[0008] Furthermore, the sowing mechanism includes a fixed cylinder, a sowing tube and a lifting cylinder, the fixed cylinder is fixed to the V-shaped conveying cylinder; the lifting cylinder is rotatably sleeved on the outside of the sowing tube, and retaining rings are fixed on the sowing tube at the upper and lower ends of the lifting cylinder, the lifting cylinder is slidably connected to the fixed cylinder, two sowing grooves are opened at the lower end of the sowing tube, and a film-breaking cone is fixed to the bottom of the sowing tube.

[0009] Furthermore, the lower end of the lifting cylinder is hinged with two hinged plates through a pin shaft, and a material baffle plate adapted to the sowing groove is fixed under the two hinged plates. Spring steel sheets are arranged on the outside of the two hinged plates, and the two spring steel sheets are fixed to the outer surface of the lifting cylinder. Two arc-shaped inclined blocks are fixed on the outer surface of the sowing tube, and pressure blocks corresponding to the positions of the arc-shaped inclined blocks are fixed on the outer surfaces of the two material baffle plates.

[0010] Furthermore, two sliding columns are fixed on the outer surface of the sowing tube, and two straight sliding grooves adapted to the sliding columns are provided on the wall of the lifting cylinder. The two sliding columns are respectively slidably matched with the two straight sliding grooves, and two L sliding grooves adapted to the sliding columns are provided on the wall of the fixed cylinder. The two sliding columns are respectively slidably connected in the two L sliding grooves.

[0011] Furthermore, the linkage mechanism includes a support frame 1 fixed on the fixed cylinder, a limit rod 5 is fixed between the support frame 1 and the fixed cylinder, a fixed block is fixed on the outer surface of the lifting cylinder, the fixed block is slidably sleeved on the limit rod 5, a support frame 2 is fixed on the support frame 1, a support plate is fixed on the support frame 2, a motor is fixed on the support plate, a threaded rod 2 is connected to the output end of the motor, a threaded block is threadedly connected to the threaded rod 2, two limit rods 2 are fixed above the support frame 2, the two limit rods 2 are both slidably connected to the threaded block, an articulated rod is hinged to the bottom of the threaded block through a pin shaft, and the articulated rod is hinged to the fixed block.

[0012] Furthermore, the unloading mechanism includes a transfer barrel and a collecting hopper, which is fixed to the V-shaped conveying cylinder; the transfer barrel is fixed below the collecting hopper, and a discharge hopper is fixed below the transfer barrel. The collecting hopper, the transfer barrel and the discharge hopper are connected, and two wedge-shaped baffles are arranged below the discharge hopper. Two fixed plates are fixed on the outer surface of the support frame one, and two limit rods four are fixedly connected between the two fixed plates. The two wedge-shaped baffles are both slidably connected to the two limit rods four, and the two limit rods four are both provided with telescopic tension springs, and the two telescopic tension springs are supported between the two wedge-shaped baffles.

[0013] Furthermore, the inner wall of the transfer barrel is rotatably connected to a rotating cylinder, a material trough is provided on the outer surface of the rotating cylinder, gears 2 are fixed at both ends of the rotating cylinder, two limit rods 3 are fixed to the outer surface of the support plate, a movable plate is provided above the support plate, the two limit rods 3 are slidably connected to the movable plate, the outer surfaces of the two limit rods 3 are sleeved with telescopic springs 1, the two telescopic springs 1 are supported between the support plate and the movable plate, and two rack plates 2 are fixed to the outer surface of the movable plate, and the two rack plates 2 are respectively meshed with the two gears 2.

[0014] Furthermore, a compacting mechanism is arranged at the rear of the support frame 1, and the compacting mechanism includes a fixed frame and a pressure wheel. The fixed frame is fixedly connected to the support frame 1, and a limiting rod 6 and a threaded rod 3 are fixed to the top of the wheel frame of the pressure wheel. The limiting rod 6 is slidably connected to the fixed frame, and the threaded rod 3 is threadedly connected to the fixed frame.

[0015] Compared with the prior art, the advantages of the present invention are: The present invention provides a feeding mechanism and a sowing mechanism. When furrow sowing and film covering are carried out, the lifting cylinder is controlled to move downward so that the film-breaking cone penetrates the film and is inserted into the soil. At this time, the slide column slides in the L slide groove and is squeezed by the L slide groove, so that the slide column slides in the straight slide groove, so that the sowing tube and the lifting cylinder are rotated and misaligned, and the pressure block on the baffle plate is squeezed away from the sowing tube by the arc-shaped inclined block, so that the two baffle plates will push away the soil at the film-breaking cone. At this time, the seeds in the sowing tube will slide into the soil through the two sowing grooves, so as to complete the sowing work. In addition, the film-breaking cone penetrates the film vertically from the ground and is inserted into the soil each time sowing. Through this sowing method, the tearing range of the film is reduced, thereby effectively avoiding the problem of a large opening of the duckbill tearing film during sowing, resulting in a large loss of temperature and humidity in the film.

[0016] The present invention provides a soil covering mechanism. When furrow sowing and film covering are carried out, the device is pulled to make a furrowing box to furrow and ridge the field. The furrowing box scoops up soil and transmits it to the corner of the V-shaped conveying cylinder through a blade conveyor. The soil in the V-shaped conveying cylinder will be distributed through a diverter plate. A part of the soil is discharged from the second discharge cylinder to the side of the suppression film, and the other part of the soil is discharged from the first discharge cylinder to cover the top of the film in the gully. By controlling the rotation of the diverter plate, the diversion amount of the soil in the V-shaped conveying cylinder is controlled, so that the amount of soil covering the top of the film in the gully can be controlled, so that farmers can control the amount of soil spread on the seeds according to the seed variety or seasonal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the first viewing angle of the three-dimensional structure diagram of the present invention; Figure 2 This is the second viewing angle of the three-dimensional structure diagram of the present invention; Figure 3 It is a schematic diagram of the retractable roller and the guide roller; Figure 4 It is a three-dimensional structural schematic diagram of the soil covering mechanism; Figure 5 It is a schematic diagram of the three-dimensional structure inside the V-shaped conveying cylinder; Figure 6 Schematic diagram of the three-dimensional structure of the rack plate 1; Figure 7 Schematic diagram of the three-dimensional structure of the diverter plate; Figure 8 It is a three-dimensional structural diagram of the linkage mechanism, the feeding mechanism and the sowing mechanism; Fig. 9 It is a three-dimensional structural schematic diagram of the blanking mechanism; Fig.10 It is a schematic diagram of the three-dimensional structure inside the transfer barrel; Fig.11 It is a schematic diagram of two wedge-shaped baffles opening up to overcome the elastic force of the telescopic tension spring; Fig.12 It is a three-dimensional structural schematic diagram of the seeding mechanism; Fig.13 It is a schematic diagram of the split structure of the seeding mechanism; Fig.14 It is a schematic diagram of the three-dimensional structure of the membrane-breaking cone; Fig.15 It is a schematic diagram of the separate structure of the seeding tube and the lifting cylinder.

[0018] In the figure: 1- traction frame; 2- wheels; 3- retractable roller; 4- guide roller; 5-soil covering mechanism; 501-V-type conveying cylinder; 502-blade conveyor; 503-ditching box; 504-discharging cylinder 1; 505-discharging cylinder 2; 506-rack plate 1; 507-threaded rod 1; 508-limiting rod 1; 509-rotating rod; 510-diverter plate; 511-gear 1; 6- linkage mechanism; 601- support frame 1; 602- support frame 2; 603- support plate; 604- motor; 605- threaded rod 2; 606- threaded block; 607- limit rod 2; 608- limit rod 3; 609- telescopic spring 1; 610- moving plate; 7-feeding mechanism; 701-transfer barrel; 702-collecting hopper; 703-discharging hopper; 704-rotating cylinder; 705-gear 2; 706-material trough; 707-fixing plate; 708-limiting rod 4; 709-wedge baffle; 710-telescopic tension spring; 711-rack plate 2; 8-seeding mechanism; 801-seeding tube; 802-lifting cylinder; 803-fixed block; 804-fixed cylinder; 805-limiting rod five; 806-hinged rod; 807-sliding column; 808-straight slide groove; 809-L slide groove; 810-blocking ring; 811-film breaking cone; 812-arc-shaped inclined block; 813-seeding groove; 814-blocking plate; 815-hinged plate; 816-pressure block; 817-spring steel sheet; 9-compacting mechanism; 901-fixed frame; 902-pressing wheel; 903-threaded rod three; 904-limiting rod six. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown: a film covering device for side furrow sowing of dryland millet, comprising a traction frame 1 and two soil covering mechanisms 5 mounted on the traction frame 1 and arranged on the left and the right, the soil covering mechanism 5 comprising a V-shaped conveying cylinder 501, along the moving direction of the traction frame 1, the front part of the V-shaped conveying cylinder 501 is a furrowing box 503, and the rear part is a discharge cylinder; a retracting roller 3 is installed in the V-shaped mouth of the V-shaped conveying cylinder 501 on the traction frame 1, and a guide roller 4 is installed below the retracting roller 3, and the guide roller 4 is closer to the front of the outlet of the discharge cylinder and lower than the outlet of the discharge cylinder; after the film on the retracting roller 3 is unfolded, it bypasses the guide roller 4 and passes under the outlet of the discharge cylinder; a feeding mechanism 7 and a sowing mechanism 8 arranged one above the other are arranged at the rear of each V-shaped conveying cylinder 501, and a linkage mechanism 6 is arranged between the feeding mechanism 7 and the sowing mechanism 8, and 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.

[0021] There are two rows of wheels 2 at the bottom of the traction frame 1, and a soil covering mechanism 5, a feeding mechanism 7 and a sowing mechanism 8 are located between the two rows of wheels 2.

[0022] When the traction frame 1 moves, the film on the retracting roller 3 is passed to the bottom of the guide roller 4 and laid on the ground. The traction frame 1 is driven to move by the traction vehicle. When furrow sowing and film covering are carried out, the furrowing box 503 furrows and ridges the field, and the guide roller 4 spreads the film flat on the ground; the unloading mechanism 7 puts the material (seeds) into the sowing mechanism 8, and the sowing mechanism 8 pierces the film and buries the seeds in the soil.

[0023] like Figure 4 , Figure 5 , Figure 7 As shown: a blade conveyor 502 is installed in the front cylinder body of the V-shaped conveying cylinder 501, one end of the blade conveyor 502 is connected to the ditching box 503, and the other end extends to the corner of the V-shaped conveying cylinder 501, and the rear cylinder body of the V-shaped conveying cylinder 501 is connected to the discharge cylinder 1 504 and the discharge cylinder 2 505 to form two channels, and a rotating rod 509 is rotatably connected at the intersection of the discharge cylinder 1 504 and the discharge cylinder 2 505, and a diverter plate 510 is fixed on the rotating rod 509, and the size of the inlet of the discharge cylinder 1 504 and the discharge cylinder 2 505 is adjusted by swinging the diverter plate 510. The device is pulled to make the furrowing box 503 furrow and ridge the field. The soil scooped up by the furrowing box 503 is transmitted to the corner of the V-shaped conveying cylinder 501 through the blade conveyor 502, and the soil falls along the rear cylinder of the V-shaped conveying cylinder 501. The soil in the V-shaped conveying cylinder 501 will be distributed through the diverter plate 510. Part of the soil is discharged from the side of the suppression film through the discharge cylinder 2 505, and the other part of the soil is discharged through the discharge cylinder 1 504 to cover the top of the film in the gully.

[0024] like Figure 6As shown, a gear 511 is fixed to one end of the rotating rod 509, a limiting rod 508 is fixed to the outside of the discharge tube 1 504 and the discharge tube 2 505, a rack plate 506 is slidably connected to the limiting rod 508, the rack plate 506 is meshed with the gear 511, and a threaded rod 507 is arranged above the limiting rod 508, the threaded rod 507 is rotatably connected to the discharge tube 1 504 and the discharge tube 2 505, and the threaded rod 507 is threadedly connected to the rack plate 1 506. The rack plate 1 506 is driven to move by rotating the threaded rod 507, and when the rack plate 1 506 moves, the diverter plate 510 is driven to rotate through the gear 511, so as to control the amount of soil in the V-shaped conveying tube 501 falling into the discharge tube 1 504 and the discharge tube 2 505, so as to control the amount of soil covering the film at the gully, so that the farmers can control the amount of soil spread on the seeds according to the seed variety or seasonal temperature.

[0025] like Figure 4 , Fig.12 , Fig.13 As shown, the sowing mechanism 8 includes a fixed cylinder 804, a sowing tube 801 and a lifting cylinder 802, wherein the fixed cylinder 804 is fixed to the V-shaped conveying cylinder 501; the lifting cylinder 802 is rotatably sleeved on the outside of the sowing tube 801, and the sowing tube 801 is fixed with retaining rings 810 at the upper and lower ends of the lifting cylinder 802, the retaining rings 810 restrict the lifting cylinder 802 from sliding up and down, the lifting cylinder 802 is slidably connected with the fixed cylinder 804, the lower end of the sowing tube 801 is provided with two sowing grooves 813, and a film-breaking cone 811 is fixed to the bottom of the sowing tube 801. By providing the film-breaking cone 811, when the lifting cylinder 802 drives the sowing tube 801 to move downward, the film-breaking cone 811 can quickly break the film and insert it into the soil.

[0026] like Fig.13 , Fig.14 , Fig.15As shown: the lower end of the lifting cylinder 802 is hinged with two hinged plates 815 through a pin shaft, and the lower part of the two hinged plates 815 is fixed with a baffle plate 814 adapted to the sowing groove 813, and the outside of the two hinged plates 815 is provided with a spring steel sheet 817, and the two spring steel sheets 817 are fixed to the outer surface of the lifting cylinder 802, and the outer surface of the sowing tube 801 is fixed with two arc-shaped inclined blocks 812, and the outer surfaces of the two baffle plates 814 are fixed with pressure blocks 816 corresponding to the positions of the arc-shaped inclined blocks 812. When the two baffle plates 814 block the two sowing grooves 813 under the elastic force of the spring steel sheet 817, the seeds in the sowing tube 801 cannot be discharged through the sowing groove 813. When the lifting cylinder 802 and the sowing tube 801 rotate relatively, the arc-shaped inclined block 812 on the sowing tube 801 pushes the pressure block 816 to open the baffle plate 814, and the sowing groove 813 opens. After the lifting cylinder 802 and the sowing tube 801 rotate and reset, after the pressure block 816 is no longer squeezed by the arc-shaped inclined block 812, the baffle plate 814 will be reset by the spring pressure of the spring steel sheet 817, so that the baffle plate 814 fits the sowing tube 801 and blocks the sowing groove 813.

[0027] like Fig.12 , Fig.13 As shown: two sliding posts 807 are fixed on the outer surface of the sowing tube 801, two straight sliding grooves 808 adapted to the sliding posts 807 are provided on the wall of the lifting cylinder 802, and the two sliding posts 807 are respectively slidably matched with the two straight sliding grooves 808, and two L-shaped sliding grooves 809 adapted to the sliding posts 807 are provided on the wall of the fixed cylinder 804, and the two sliding posts 807 are respectively slidably connected in the two L-shaped sliding grooves 809. When the lifting cylinder 802 moves downward, the lifting cylinder 802 moves downward and drives the sowing tube 801 to move downward, so that the film-breaking cone 811 penetrates the film and is inserted into the soil. When the slide column 807 moves to the horizontal inclined groove part of the L slide groove 809, the slide column 807 slides in the L slide groove 809 and is squeezed by the L slide groove 809, so that the slide column 807 slides in the straight slide groove 808, so that the sowing tube 801 and the lifting cylinder 802 are rotated and misaligned, so that the pressure block 816 on the baffle plate 814 is squeezed by the arc-shaped inclined block 812 away from the sowing tube 801, so that the two baffle plates 814 will push away the soil at the film-breaking cone 811, and the seeds inside the sowing tube 801 will slide into the soil through the two sowing grooves 813, thereby completing the sowing work.

[0028] like Figure 8 , Fig. 9 , Fig.13As shown: the linkage mechanism 6 includes a support frame 1 601 fixed on a fixed cylinder 804, a limit rod 5 805 is fixed between the support frame 1 601 and the fixed cylinder 804, a fixed block 803 is fixed on the outer surface of the lifting cylinder 802, and the fixed block 803 is slidably sleeved on the limit rod 5 805, a support frame 2 602 is fixed on the support frame 1 601, a support plate 603 is fixed on the support frame 2 602, a motor 604 is fixed on the support plate 603, a threaded rod 2 605 is connected to the output end of the motor 604, and a threaded block 606 is threadedly connected to the threaded rod 2 605, two limit rods 2 607 are fixed above the support frame 2 602, and the two limit rods 2 607 are both slidably connected to the threaded block 606, and a hinged rod 806 is hinged to the fixed block 803 through a pin shaft at the bottom of the threaded block 606. The hinged rod 806 is hinged to the fixed block 803. During sowing, the control motor 604 drives the threaded rod 605 to rotate, and the rotation of the threaded rod 605 drives the threaded block 606 to move, so that the threaded block 606 drives the fixed block 803 through the hinged rod 806 to move the lifting cylinder 802 downward, and the downward movement of the lifting cylinder 802 drives the sowing tube 801 to move downward, so that the film-breaking cone 811 penetrates the film and is inserted into the soil.

[0029] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown: the unloading mechanism 7 includes a transfer barrel 701 and a collecting hopper 702, and the collecting hopper 702 is fixed to the V-shaped conveying cylinder 501; the transfer barrel 701 is fixed below the collecting hopper 702, and 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 connected, and two wedge-shaped baffles 709 are arranged below the discharge hopper 703, and two fixed plates 707 are fixed to the outer surface of the support frame 601, and two limit rods 708 are fixedly connected between the two fixed plates 707, and the two wedge-shaped baffles 709 are both slidably connected to the two limit rods 708, and the two limit rods 708 are both sleeved with telescopic tension springs 710, and the two telescopic tension springs 710 are connected between the two wedge-shaped baffles 709. After the sowing tube 801 moves to the top, the two wedge-shaped baffles 709 will be pushed open, and the discharge hopper 703 will be inserted into the sowing tube 801. After the material trough 706 transports the seeds in the collecting hopper 702 to the sowing tube 801 through the discharge hopper 703, the seeds finally fall to the bottom of the sowing tube 801 and wait for the next sowing operation. After the sowing tube 801 is away from the discharge hopper 703, the two wedge-shaped baffles 709 are reset by the elastic tension of the telescopic tension spring 710, so that the two wedge-shaped baffles 709 are closed and block the lower port of the discharge hopper 703.

[0030] The inner wall of the transfer barrel 701 is rotatably connected to a rotating cylinder 704, a material trough 706 is provided on the outer surface of the rotating cylinder 704, gears 2 705 are fixed at both ends of the rotating cylinder 704, two limit rods 3 608 are fixed on the outer surface of the support plate 603, a moving plate 610 is arranged above the support plate 603, the two limit rods 3 608 are both slidably connected to the moving plate 610, the outer surfaces of the two limit rods 3 608 are both sleeved with telescopic springs 1 609, the two telescopic springs 1 609 are supported between the support plate 603 and the moving plate 610, the outer surface of the moving plate 610 is fixed with two rack plates 2 711, the two rack plates 2 711 are respectively meshed with the two gears 2 705. After the sowing tube 801 moves to the top, the two wedge-shaped baffles 709 are pushed open, and the discharge hopper 703 is inserted into the sowing tube 801. When the motor 604 controls the threaded rod 2 605 to drive the threaded block 606 to move to the right, the threaded block 606 squeezes the moving plate 610, so that the rack plate 2 711 on the moving plate 610 drives the gear 2 705 to rotate, thereby turning the rotating cylinder 704 over, and turning the material trough 706 located at the collecting hopper 702 into the discharge hopper 703, so that the material trough 706 transports the seeds in the collecting hopper 702 to the sowing tube 801 through the discharge hopper 703, and the seeds eventually fall to the bottom of the sowing tube 801, waiting 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 telescopic spring 1 609, so that the rack plate 2 711 drives the gear 2 705 to reverse the rotating cylinder 704, and the material trough 706 moves to the collecting hopper 702.

[0031] like Figure 2 and Figure 8 As shown: a compacting mechanism 9 is arranged behind the support frame 1 601, and the compacting mechanism 9 comprises a fixing frame 901 and a pressing wheel 902. The fixing frame 901 is fixedly connected to the support frame 1 601, and a limiting rod 6 904 and a threaded rod 3 903 are fixed to the top of the wheel frame of the pressing wheel 902. The limiting rod 6 904 is slidably connected to the fixing frame 901, and the threaded rod 3 903 is threadedly connected to the fixing frame 901. Through the arrangement of the pressing wheel 902, the pressing wheel 902 will squeeze the soil covering the seeds, making the soil covering compact so as to improve the heat preservation effect on the seeds. By rotating the threaded rod 3 903 to adjust the height of the pressing wheel 902, the squeezing force of the pressing wheel 902 on the soil covering can be adjusted.

[0032] The working principle of a film-covering device for furrow sowing of dryland millet is as follows: when in use, the film on the retractable roller 3 is passed to the bottom of the guide roller 4 and laid on the land, and the traction frame 1 is driven to move by a traction vehicle. When furrow sowing and film covering are carried out, the furrowing box 503 furrows and ridges the field, and the furrowing box 503 scoops up the soil and transmits 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 through the diverter plate 510, and a part of the soil will be discharged from the side of the suppression film from the discharge cylinder 2 505, and the other part of the soil will be discharged from the discharge cylinder 1 504 to the top of the film covering the gully. By controlling the rotation angle of the diverter plate 510, the diversion amount of the soil in the V-shaped conveying cylinder 501 is controlled, so that the amount of soil covering the film above the gully can be controlled.

[0033] When sowing, the control motor 604 drives the threaded rod 605 to rotate, and the rotation of the 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 move the lifting cylinder 802 downward, and the lifting cylinder 802 moves downward to drive the sowing tube 801 to move downward, so that the film-breaking cone 811 penetrates the film and is inserted into the soil. At this time, the sliding column 807 slides in the horizontal inclined groove part of the L slide groove 809 and is squeezed by the L slide groove 809, so that the sliding column 807 slides in the straight slide groove 808, so that the sowing tube 801 and the lifting cylinder 802 are rotated and misaligned, so that the pressure block 816 on the baffle plate 814 The arc-shaped inclined block 812 squeezes the seeding tube 801 away, so that the two baffle plates 814 will push away the soil at the film-breaking cone 811. At this time, the seeds in the seeding tube 801 will slide into the soil through the two seeding grooves 813, thereby completing the seeding work. Then the motor 604 is controlled to reverse, and the threaded block 606 pulls the fixed block 803 through the hinge rod 806 to move the lifting cylinder 802 upward. When the sliding column 807 moves upward in the L slide groove 809, the seeding tube 801 is deflected and reset, so that the baffle plate 814 is pressed against the bottom of the seeding tube 801 by the spring pressure of the spring steel sheet 817, so that the two baffle plates 814 respectively cover the two seeding grooves 813.

[0034] After the sowing tube 801 moves to the top, it will push open the two wedge-shaped baffles 709 and insert the discharge hopper 703 into the sowing tube 801. When the motor 604 controls the threaded rod 2 605 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 2 711 on the moving plate 610 drives the gear 2 705 to rotate, thereby turning the rotating cylinder 704 over, and turning the material trough 706 located at the collecting hopper 702 into the discharge hopper 703, so that the material trough 706 transports the seeds in the collecting hopper 702 to the sowing tube 801 through the discharge hopper 703, and the seeds eventually fall to the bottom of the sowing tube 801, waiting for the next sowing operation, thereby realizing continuous sowing operations, and each time the device sows, the film-breaking cone 811 penetrates the film vertically through the ground and then inserts into the soil. Through this sowing method, the tearing range of the film is reduced, thereby effectively avoiding the problem of the duckbill tearing the film with a large opening during sowing, which makes it difficult to maintain the temperature and humidity inside the film.

[0035] 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 apparent to those skilled in the art, and the general principles defined herein may 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 rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A film covering device for side-film furrow sowing of millet in dryland, characterized in that: It comprises a traction frame (1) and two soil covering mechanisms (5) mounted on the traction frame (1) and arranged on the left and the right, the soil covering mechanism (5) comprising a V-shaped conveying cylinder (501), along the moving direction of the traction frame (1), the front part of the V-shaped conveying cylinder (501) is a trenching box (503), and the rear part is a discharge cylinder; A retractable roller (3) is installed in the V-shaped opening of the V-shaped conveying cylinder (501) on the traction frame (1), and a guide roller (4) is installed below the retractable roller (3), the guide roller (4) being closer to the front of the outlet of the discharge cylinder and lower than the outlet of the discharge cylinder; after the film on the retractable roller (3) is unfolded, it bypasses the guide roller (4) and passes under the outlet of the discharge cylinder; A feeding mechanism (7) and a sowing mechanism (8) are arranged one above the other at the rear of each V-shaped conveying cylinder (501), and a linkage mechanism (6) is provided 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 via the linkage mechanism (6).

2. The film-covering device for side-film furrow sowing of dryland millet according to claim 1, characterized in that: A blade conveyor (502) is installed in the front cylinder body of the V-shaped conveying cylinder (501), one end of the blade conveyor (502) is connected to the ditching 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 1 (504) and the discharge cylinder 2 (505) to form two channels. The intersection of the discharge cylinder 1 (504) and the discharge cylinder 2 (505) is rotatably connected to a rotating rod (509), and a diverter plate (510) is fixed on the rotating rod (509). The size of the inlet of the discharge cylinder 1 (504) and the discharge cylinder 2 (505) is adjusted by swinging the diverter plate (510).

3. The film covering device for side-film furrow sowing of dryland millet according to claim 2, characterized in that: A gear 1 (511) is fixed to one end of the rotating rod (509); a limiting rod 1 (508) is fixed to the outside of the discharge tube 1 (504) and the discharge tube 2 (505); a rack plate 1 (506) is slidably connected to the limiting rod 1 (508); the rack plate 1 (506) is meshed with the gear 1 (511); a threaded rod 1 (507) is arranged above the limiting rod 1 (508); the threaded rod 1 (507) is rotatably connected to the discharge tube 1 (504) and the discharge tube 2 (505); and the threaded rod 1 (507) is threadedly connected to the rack plate 1 (506).

4. The film covering device for side-film furrow sowing of dryland millet according to claim 1, characterized in that: The sowing mechanism (8) comprises a fixed cylinder (804), a sowing tube (801) and a lifting cylinder (802), wherein the fixed cylinder (804) is fixed to the V-shaped conveying cylinder (501); the lifting cylinder (802) is rotatably sleeved on the outside of the sowing tube (801), retaining rings (810) are fixed on the sowing tube (801) at the upper and lower ends of the lifting cylinder (802), the lifting cylinder (802) is slidably connected to the fixed cylinder (804), the lower end of the sowing tube (801) is provided with two sowing grooves (813), and the bottom of the sowing tube (801) is fixed with a film breaking cone (811).

5. The film-covering device for side-film furrow sowing of dryland millet according to claim 4, characterized in that: The lower end of the lifting cylinder (802) is hinged with two hinged plates (815) via a pin shaft, and a baffle plate (814) adapted to the sowing groove (813) is fixed below the two hinged plates (815). The outsides of the two hinged plates (815) are provided with spring steel sheets (817), and the two spring steel sheets (817) are fixed to the outer surface of the lifting cylinder (802). Two arc-shaped inclined blocks (812) are fixed to the outer surface of the sowing tube (801), and pressure blocks (816) corresponding to the positions of the arc-shaped inclined blocks (812) are fixed to the outer surfaces of the two baffle plates (814).

6. The film-covering device for side-film furrow sowing of dryland millet according to claim 5, characterized in that: Two sliding columns (807) are fixed on the outer surface of the sowing tube (801); two straight sliding grooves (808) matching the sliding columns (807) are provided on the wall of the lifting cylinder (802); the two sliding columns (807) are respectively slidably matched with the two straight sliding grooves (808); two L-shaped sliding grooves (809) matching the sliding columns (807) are provided on the wall of the fixed cylinder (804); the two sliding columns (807) are respectively slidably connected in the two L-shaped sliding grooves (809).

7. The film-covering device for side-film furrow sowing of dryland millet according to claim 4, characterized in that: The linkage mechanism (6) comprises a support frame 1 (601) fixed on a fixed cylinder (804), a limit rod 5 (805) fixed between the support frame 1 (601) and the fixed cylinder (804), a fixed block (803) fixed on the outer surface of the lifting cylinder (802), the fixed block (803) slidably sleeved on the limit rod 5 (805), a support frame 2 (602) fixed on the support frame 1 (601), a support plate (603) fixed on the support frame 2 (602), and the support plate ( A motor (604) is fixed on the support frame (603), the output end of the motor (604) is connected to a threaded rod (605), the threaded block (606) is threadedly connected to the threaded rod (605), two limit rods (607) are fixed above the support frame (602), the two limit rods (607) are slidably connected to the threaded block (606), and a hinge rod (806) is hingedly connected to the fixed block (803) through a pin shaft below the threaded block (606). The hinge rod (806) is hingedly connected to the fixed block (803).

8. The film covering device for side-film furrow sowing of dryland millet according to claim 7, characterized in that: The unloading mechanism (7) comprises a transfer barrel (701) and a collecting hopper (702), wherein the collecting hopper (702) is fixed to the V-shaped conveying cylinder (501); the transfer barrel (701) is fixed below the collecting hopper (702), and 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 connected, and two wedge-shaped discharge hoppers (703) are arranged below the discharge hopper (703). The baffle (709) has two fixed plates (707) fixed on the outer surface of the support frame (601), two limit rods (708) are fixedly connected between the two fixed plates (707), the two wedge-shaped baffles (709) are slidably connected to the two limit rods (708), and the two limit rods (708) are sleeved with telescopic tension springs (710), and the two telescopic tension springs (710) are supported between the two wedge-shaped baffles (709).

9. The film-covering device for side-film furrow sowing of dryland millet according to claim 8, characterized in that: The inner wall of the transfer barrel (701) is rotatably connected to a rotating cylinder (704), a material trough (706) is provided on the outer surface of the rotating cylinder (704), gears 2 (705) are fixed to both ends of the rotating cylinder (704), two limit rods 3 (608) are fixed to the outer surface of the support plate (603), a moving plate (610) is arranged above the support plate (603), the two limit rods 3 (608) are slidably connected to the moving plate (610), the outer surfaces of the two limit rods 3 (608) are sleeved with telescopic springs 1 (609), the two telescopic springs 1 (609) are supported between the support plate (603) and the moving plate (610), and two rack plates 2 (711) are fixed to the outer surface of the moving plate (610), and the two rack plates 2 (711) are respectively meshed with the two gears 2 (705).

10. The film covering device for side-film furrow sowing of dryland millet according to claim 7, characterized in that: A compacting mechanism (9) is arranged at the rear of the support frame one (601), and the compacting mechanism (9) comprises a fixing frame (901) and a pressure wheel (902). The fixing frame (901) is fixedly connected to the support frame one (601), and a limiting rod six (904) and a threaded rod three (903) are fixed to the top of the wheel frame of the pressure wheel (902). The limiting rod six (904) is slidably connected to the fixing frame (901), and the threaded rod three (903) is threadedly connected to the fixing frame (901).

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