Cotton seeder in melon-cotton interplanting mode

Abstract

The invention relates to the technical field of seeding machines, and discloses a cotton seeding machine in a melon-cotton interplanting mode, the upper end of the front part of a rack is provided with a film winding and unwinding roller, and the middle part of the lower end of the rack is provided with supporting wheels and a guide wheel for driving between the two groups of supporting wheels; a middle connecting cylinder is mounted in the middle of the rear part of the lower end of the rack; two ends of the middle connecting cylinder are movably connected with soil covering rollers; when the machine frame moves forwards, the supporting wheels pull out a film on the film winding and unwinding roller through the guide wheels and then flatly lay the film on the ground, soil in the soil covering roller is laid on the film at intervals, in this way, film covering and film compacting can be achieved at the same time, the sowing efficiency is improved, and it is guaranteed that the film is not blown up by strong wind after being compressed by the soil; when the soil covering roller rolls, the stirring assembly in the middle of the interior of the soil covering roller is driven by the driving assembly to rotate, and the rotation directions of the soil covering roller and the stirring assembly are opposite, so that stirring and crushing of soil in the soil covering roller can be improved, and the soil is prevented from being blocked in the soil covering roller.

Description

Technical Field

[0001] The invention relates to the technical field of seeders, and in particular to a cotton seeder in a melon-cotton intercropping mode. Background Art

[0002] The intercropping of melon and cotton makes full use of the spatial niche. By rationally matching the planting of watermelon and cotton, the maximum utilization of light energy, space and time resources is achieved. At the same time, it also helps to inhibit the occurrence of pests and diseases, reduce natural disasters, and improve the yield and quality of crops. When intercropping melon and cotton, the seeder usually adopts the integrated operation of film covering and hole sowing. However, after film covering, the soil is simply scraped to cover both sides of the film, which is not conducive to the compaction of the film. The film is easily blown away by strong winds. There is also an operation of covering the film again with a covering roller, but the soil in the covering roller is blocked by adhesion, which will cause the soil to fail to fall onto the film. In the subsequent hole sowing process, it is also easy for the seeds to stick together and agglomerate, causing the seeds to fail to fall normally, resulting in empty seeding. For this reason, we have launched a cotton seeder in the melon-cotton intercropping mode. Summary of the invention

[0003] The object of the present invention is to provide a cotton seeder in a melon-cotton intercropping mode to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A cotton seeder in a melon-cotton interplanting mode comprises a frame, a connecting frame mounted on a traction tractor is provided in the middle of the front end of the frame, a film retracting roller is provided at the upper end of the front end of the frame, and a support wheel and a guide wheel driven between two groups of support wheels are provided in the middle of the lower end of the frame;

[0006] A middle connecting cylinder is centrally installed at the rear of the lower end of the frame, and soil covering rollers are movably connected to the two ends of the middle connecting cylinder. Walking plates are evenly spaced on the outer end surface of the soil covering roller, and oblique scraping wheels are also arranged on the outer side of the outer end of the soil covering roller on both sides of the rear of the frame;

[0007] When the traction tractor pulls the frame forward, the support wheel pulls the film on the film retracting roller through the guide wheel and spreads it on the ground, and the oblique scraping wheel covers the ground soil on both sides of the film and also moves a part of the ground soil into the soil covering roller. Under the rolling of the soil covering roller, the soil in the soil covering roller is laid on the film at intervals;

[0008] When the soil covering drum rolls, the driving assembly also drives the stirring assembly in the middle of the soil covering drum to rotate, and the soil covering drum and the stirring assembly rotate in opposite directions to prevent the soil from being blocked in the soil covering drum;

[0009] At the same time, the self-propelled sowing drum assembly at the rear end of the frame punctures the film and sows the seeds in the soil.

[0010] Preferably, mounting seats for mounting film retracting and unwinding rollers are provided on both sides of the upper front end of the frame;

[0011] Vertical plates for mounting support wheels are provided on both sides of the middle of the lower end of the frame, and a rotating rod connected to the middle of the support wheel penetrates the vertical plates, and guide wheels are evenly spaced on the rotating rod;

[0012] A mounting frame is arranged at the upper end of the rear part of the frame, the oblique scraper wheel is movably connected to the inner side of the bottom of the connecting plate, and the connecting plate is fixed by bolts after passing through the mounting frame.

[0013] Preferably, the top of the middle connecting tube is connected and fixed to the rear inner wall of the frame by a fixing frame.

[0014] Preferably, soil-pushing plates are evenly spaced on the inner wall of the soil-covering drum. When the soil-covering drum rolls, the soil-pushing plates are used to push soil that has just entered the soil-covering drum into the inside of the soil-covering drum. Soil-draining grooves are evenly spaced at both ends of the surface of the soil-covering drum.

[0015] Preferably, the driving assembly comprises an outer gear ring fixed on the outer side of the inner end of the soil covering roller, a gear meshed with the top of the outer gear ring, a first pulley fixed between the two sets of gears through a rotating shaft, and a second pulley centrally arranged inside the middle connecting cylinder;

[0016] The top of the middle connecting tube is provided with raised plates on both sides, the rotating shaft passes through the raised plates, the top of the middle connecting tube is provided with an open groove, the belt on the first pulley extends into the middle connecting tube through the open groove and then connects with the second pulley;

[0017] The stirring assembly includes a long rod that passes through the second pulley and extends into the soil covering drum, and a stirring rod arranged on the surface of the long rod. Sealing disks are arranged at both ends of the middle connecting tube, and the sealing disks are sleeved on the outside of the long rod.

[0018] Preferably, annular grooves are provided at both ends of the middle connecting tube, the inner end of the soil covering drum is inserted into the annular groove, and U-shaped frames are symmetrically fixed on the outer sides of both ends of the middle connecting tube, and the outer ends of the two sets of U-shaped frames are connected to limited ring seats, and the limited ring seats are sleeved on the outer ends of the soil covering drum, and a cleaning rod is provided on the inner wall of the U-shaped frame, and the cleaning rod is tightly attached to the outer wall of the soil covering drum;

[0019] A positioning ring is screwed on the outer side of the soil covering drum, and the positioning ring is located on the inner side of the corresponding limiting ring seat.

[0020] Preferably, the self-propelled seeding drum assembly comprises an L-shaped frame distributed at equal intervals at the rear end of the frame, a seed temporary storage bucket fixed at the rear end of the horizontal portion of the L-shaped frame, an extension plate movably connected by a pin at the bottom of the vertical portion of the L-shaped frame, sealing heads fixed on both sides of the inner wall of the U-shaped bracket at the rear end of the extension plate, and a seeding drum sleeved between the sealing heads;

[0021] The two sides of the bottom of the seed temporary storage bucket are connected to the sealing head by using corrugated curved pipes, and the sowing drum is connected with the seed temporary storage bucket through the corrugated curved pipes.

[0022] Preferably, a horizontal plate is fixed on the upper side of the vertical portion of the L-shaped frame, and a tension spring is connected between the horizontal plate and the extension plate.

[0023] Preferably, the sealing head comprises a plugging disk fixed on both sides of the inner wall of the U-shaped bracket and a limiting support ring fixed on the inner end of the plugging disk, two groups of reinforcing plates symmetrically connected between the inner walls of the limiting support ring, a material shifting plate arranged on the inner wall of the reinforcing plate, an intermediate ring fixedly sleeved in the middle between the two groups of reinforcing plates, and a material leakage notch arranged at the bottom of the intermediate ring;

[0024] The two ends of the seeding drum are sleeved on the outside of the limit support ring, and seeding drums are evenly distributed in the middle of the outer side of the seeding drum. The seeding drums are connected with the leakage holes on the inner wall of the seeding drum.

[0025] Preferably, the outer diameters of the limiting support ring and the intermediate ring are consistent.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: when the tractor of the present invention pulls the frame forward, the supporting wheel pulls out the film on the film retracting roller through the guide wheel and spreads it on the ground; the oblique scraping wheel covers the ground soil on both sides of the film and also moves a part of the ground soil into the soil covering roller; under the rolling of the soil covering roller, the soil in the soil covering roller is laid on the film at intervals, thus the film covering and the film compaction can be achieved at the same time, so as to improve the sowing efficiency and ensure that the soil will not be blown away by strong wind after the film is compacted; when the soil covering roller rolls, the driving component also drives the stirring in the middle of the soil covering roller. The components rotate, and the covering drum and the stirring component rotate in opposite directions, which can improve the stirring and crushing of the soil in the covering drum to prevent the soil from being blocked in the covering drum. At the same time, the self-propelled sowing drum component at the rear end of the frame punctures the film and sows the seeds in the soil. As the sowing drum rotates, the inner wall of the sowing drum drives the seeds to move upward, and after moving up a distance, the seeds fall again under the action of their own gravity, thereby stirring the seeds. The stripping plate can also stir the seeds at this time to prevent the seeds from sticking together and causing the seeds to be unable to leak out through the sowing drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention as a whole;

[0028] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention as a whole;

[0029] Figure 3 It is a structural schematic diagram of the connection between the middle connecting cylinder and the stirring assembly of the present invention;

[0030] Figure 4 For the present invention Figure 3 A schematic cross-sectional structure diagram of ;

[0031] Figure 5 It is a schematic diagram of the structure of the soil covering roller, the middle connecting cylinder and the inclined soil scraping wheel of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the connection between the soil covering roller, the middle connecting cylinder and the stirring assembly of the present invention;

[0033] Figure 7 It is a schematic diagram of the overall structure of the self-propelled seeding drum assembly of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the self-propelled seeding drum assembly after the seeding drum of the present invention is disassembled;

[0035] Fig. 9 For the present invention Figure 8 A schematic cross-sectional structure diagram of ;

[0036] Fig.10 It is a structural schematic diagram of the seeding drum of the present invention;

[0037] Fig.11 For the present invention Figure 7 A schematic cross-sectional structure diagram of ;

[0038] Fig.12 It is a schematic diagram of the third stereoscopic structure of the present invention as a whole.

[0039] In the figure: 1, frame; 2, connecting frame; 3, film retracting roller; 4, supporting wheel; 5, oblique scraper wheel; 6, walking plate; 7, blocking plate; 8, extension plate; 9, corrugated curved pipe; 10, seed temporary storage bucket; 11, L-shaped frame; 12, mounting frame; 13, guide wheel; 14, soil covering roller; 15, connecting plate; 16, mounting seat; 17, rotating rod; 18, vertical plate; 19, limiting ring seat; 20, middle connecting cylinder; 21, fixing frame; 22, U-shaped frame; 23, pin shaft; 24, tension spring; 25, U-shaped bracket; 26. Horizontal plate; 27. Seeding roller; 28. Seeding barrel; 29. ​​Annular groove; 30. Sealing plate; 31. Long rod; 32. Stirring rod; 33. Soil-moving plate; 34. Cleaning rod; 35. Raised plate; 36. First pulley; 37. Rotating shaft; 38. Open groove; 39. External gear ring; 40. Second pulley; 41. Gear; 42. Soil-leaking groove; 43. Positioning ring; 44. Limiting support ring; 45. Reinforcement plate; 46. Intermediate ring; 47. Soil-moving plate; 48. Leakage notch; 49. Leakage hole; 50. Belt. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example:

[0042] See also Figure 1-12 , the present invention provides a technical solution:

[0043] A cotton seeder in a melon-cotton intercropping mode comprises a frame 1. A connecting frame 2 mounted on a traction tractor is provided at the middle of the front end of the frame 1. The traction tractor is a Tianjin Tieniu 654 or 724 tractor, a Xinjiang 704 tractor, an 804 rotary tiller matching tractor or other models that meet the use requirements.

[0044] like Figure 1 and 2 As shown, when the traction tractor moves forward (left side in the figure), the traction tractor drives the frame 1 to move forward through the connecting frame 2.

[0045] A film rewinding roller 3 is provided at the upper front end of the frame 1, and mounting seats 16 for mounting the film rewinding roller 3 are provided on both sides of the upper front end of the frame 1. A clamp is provided on the top of the mounting seat 16 for limiting the roller shafts at both ends of the film rewinding roller 3. When the guide wheel 13 pulls the film on the film rewinding roller 3 downward, the film rewinding roller 3 itself can rotate, thereby ensuring that the film can be pulled off the film rewinding roller 3.

[0046] A support wheel 4 and a guide wheel 13 driven between two sets of support wheels 4 are provided in the middle of the lower end of the frame 1;

[0047] Vertical plates 18 for mounting the support wheels 4 are provided on both sides of the middle of the lower end of the frame 1, and a rotating rod 17 connected to the middle of the support wheels 4 penetrates the vertical plates 18, and the guide wheels 13 are evenly spaced and distributed on the rotating rod 17;

[0048] When the frame 1 moves forward, the support wheel 4 rotates counterclockwise and drives the guide wheel 13 to rotate counterclockwise through the rotating rod 17, so that the guide wheel 13 pulls the film on the film retracting roller 3 downward, and when the soil covers both sides of the film, the film is spread flat on the ground soil.

[0049] A middle connecting tube 20 is centrally installed at the rear of the lower end of the frame 1 , and the top of the middle connecting tube 20 is connected and fixed to the inner wall of the rear of the frame 1 by a fixing frame 21 .

[0050] The two ends of the middle connecting tube 20 are movably connected with the covering roller 14. The two ends of the middle connecting tube 20 are provided with annular grooves 29. The inner end of the covering roller 14 is inserted into the annular groove 29. In this way, when the covering roller 14 rolls automatically, the inner end of the covering roller 14 can rotate in the annular groove 29.

[0051] U-shaped frames 22 are symmetrically fixed on the outer sides of both ends of the middle connecting cylinder 20, and the outer ends of the two sets of U-shaped frames 22 are connected to the limiting ring seats 19, and the limiting ring seats 19 are sleeved on the outer ends of the covering roller 14. A positioning ring 43 is screwed on the outer side of the covering roller 14, and the positioning ring 43 is located on the inner side of the corresponding limiting ring seats 19; in this way, the setting of the limiting ring seats 19 plays a supporting role on the outer end of the covering roller 14, so as to ensure that the covering roller 14 rotates smoothly and stably.

[0052] A cleaning rod 34 is provided on the inner wall of the U-shaped frame 22, and the cleaning rod 34 is closely attached to the outer wall of the covering drum 14. With this arrangement, when the covering drum 14 rolls, the outer wall of the covering drum 14 can be cleaned by the cleaning rod 34, and the soil attached to the outer wall of the covering drum 14 can be removed to ensure that the surface of the outer wall of the covering drum 14 is clean, and to prevent the outer wall surface of the covering drum 14 from being attached to a large amount of soil, which may cause the covering drum 14 to roll unsmoothly.

[0053] The outer end surface of the soil covering roller 14 is evenly spaced with walking plates 6, so that when the frame 1 moves forward, the walking plates 6 contact the ground, so that the walking plates 6 drive the soil covering roller 14 to rotate counterclockwise, thereby realizing automatic rolling of the soil covering roller 14.

[0054] In addition, both sides of the rear part of the frame 1 are provided with oblique scraping wheels 5 located outside the outer end of the soil covering roller 14, and a mounting frame 12 is provided at the upper end of the rear part of the frame 1. The oblique scraping wheels 5 are movably connected to the inner side of the bottom of the connecting plate 15, and the connecting plate 15 is fixed with bolts after passing through the mounting frame 12. With such a setting, the height of the oblique scraping wheels 5 can be adjusted by adjusting the height of the connecting plate 15, and when the oblique scraping wheels 5 move forward with the frame, the oblique scraping wheels 5 can scrape up the soil on the ground, cover part of the soil on both sides of the film, and the other part of the soil enters the inner side of the outer end of the soil covering roller 14.

[0055] The inner wall of the soil covering drum 14 is provided with soil expelling plates 33 at equal intervals. When the soil covering drum 14 rolls, the soil expelling plates 33 are used to expel the soil that has just entered the soil covering drum 14 to the inside of the soil covering drum 14. Soil leakage grooves 42 are provided at equal intervals at both ends of the surface of the soil covering drum 14. In this way, the soil that enters through the outer end of the soil covering drum 14 can enter the inside of the soil covering drum 14, and under the rotation of the soil covering drum 14, the soil inside the soil covering drum 14 falls onto the film through the soil leakage grooves 42 at the bottom thereof, so as to achieve further covering of the film.

[0056] When the soil covering drum 14 rolls, the soil expelling plate 33 can also stir the soil inside the soil covering drum 14 to prevent the soil from adhering to the inner wall of the soil covering drum 14 and causing blockage;

[0057] Furthermore, when the tractor moves forward at a constant speed, the covering roller 14 rolls at a constant speed, so that the soil inside the covering roller 14 can periodically fall onto the film through the soil leakage groove 42 that rotates to the bottom of the covering roller 14, so that the soil can fall on the film at equal intervals, thus preventing the film from being blown up by strong winds.

[0058] When the tractor pulls the frame 1 forward, the support wheel 4 pulls the film on the film retracting roller 3 through the guide wheel 13 and spreads it on the ground. The oblique scraper wheel 5 covers the ground soil on both sides of the film and also moves a part of the ground soil into the soil covering roller 14. Under the rolling of the soil covering roller 14, the soil in the soil covering roller 14 is laid on the film at intervals.

[0059] When the soil covering drum 14 rolls, the driving assembly also drives the stirring assembly in the middle of the soil covering drum 14 to rotate, and the soil covering drum 14 and the stirring assembly rotate in opposite directions to prevent the soil from being blocked in the soil covering drum 14;

[0060] The driving assembly includes an outer gear ring 39 fixed to the outer side of the inner end of the soil covering roller 14, a gear 41 meshed with the top of the outer gear ring 39, a first pulley 36 fixed between the two sets of gears 41 through a rotating shaft 37, and a second pulley 40 centrally arranged inside the middle connecting cylinder 20;

[0061] The middle connecting tube 20 has protruding plates 35 on both sides of the top, and the rotating shaft 37 passes through the protruding plates 35. The middle connecting tube 20 has an opening groove 38 on the top, and the belt 50 on the first pulley 36 extends into the middle connecting tube 20 through the opening groove 38 and is connected to the second pulley 40.

[0062] The stirring assembly includes a long rod 31 that passes through the second pulley 40 and extends into the soil covering roller 14 and a stirring rod 32 arranged on the surface of the long rod 31 , and sealing disks 30 are provided at both ends of the middle connecting tube 20 , and the sealing disks 30 are sleeved on the outside of the long rod 31 .

[0063] When the soil covering drum 14 rolls counterclockwise, the outer toothed ring 39 at the inner end of the soil covering drum 14 also rotates counterclockwise, and the outer toothed ring 39 drives the rotating shaft 37 and the first pulley 36 on the rotating shaft 37 to rotate clockwise through the gear 41, so that the first pulley 36 drives the second pulley 40 and the long rod 31 to rotate clockwise through the belt 50, so that the stirring rod 32 on the long rod 31 can stir and crush the soil inside the soil covering drum 14 to prevent the soil from adhering to the inner wall of the soil covering drum 14;

[0064] Since the diameter of the outer gear ring 39 is larger than the diameter of the gear 41, the long rod 31 can drive the stirring rod 32 thereon to rotate at a high speed, thereby improving the stirring and crushing effect of the soil inside the soil covering drum 14;

[0065] Since the soil covering roller 14 rolls counterclockwise and the long rod 31 rotates clockwise, the soil covering roller 14 and the long rod 31 of the stirring assembly rotate in opposite directions, which can further improve the stirring and crushing effect of the stirring rod 32 on the soil inside the soil covering roller 14 to prevent the soil from adhering to the inner wall of the soil covering roller 14 and causing blockage.

[0066] At the same time, the self-propelled sowing drum assembly at the rear end of the frame 1 punctures the film and sows the seeds in the soil;

[0067] The self-propelled seeding drum assembly includes an L-shaped frame 11 with equal spacing at the rear end of the frame 1, a seed temporary storage bucket 10 fixed at the rear end of the horizontal part of the L-shaped frame 11, an extension plate 8 movably connected to the bottom of the vertical part of the L-shaped frame 11 by a pin 23, sealing heads fixed on both sides of the inner wall of the U-shaped bracket 25 at the rear end of the extension plate 8, and a seeding drum 27 sleeved between the sealing heads;

[0068] The two sides of the bottom of the seed temporary storage bucket 10 are connected to the sealing head by using corrugated curved pipes 9, and the sowing drum 27 is connected to the seed temporary storage bucket 10 through the corrugated curved pipes 9.

[0069] In the specific melon-cotton intercropping mode, melon and fruit (watermelon, etc.) seeds are put into the temporary seed storage bucket 10 in the middle, and cotton seeds are put into the temporary seed storage buckets 10 on both sides.

[0070] A horizontal plate 26 is fixed on the upper side of the vertical part of the L-shaped frame 11, and a tensioning spring 24 is connected between the horizontal plate 26 and the extension plate 8. With this arrangement, under the elastic force of the tensioning spring 24, the seeding roller 27 on the U-shaped bracket 25 can be closely attached to the film on the ground, so that when moving forward, the seeding drum 28 on the seeding roller 27 pierces the film and generates friction when it contacts the ground, thereby driving the seeding roller 27 to rotate.

[0071] The sealing head includes a plugging disk 7 fixed on both sides of the inner wall of the U-shaped bracket 25, a limiting support ring 44 fixed on the inner end of the plugging disk 7, two groups of reinforcing plates 45 symmetrically connected between the inner walls of the limiting support ring 44, a material shifting plate 47 arranged on the inner wall of the reinforcing plate 45, an intermediate ring 46 sleeved and fixed in the middle between the two groups of reinforcing plates 45, and a material leakage notch 48 at the bottom of the intermediate ring 46;

[0072] Both ends of the seeding drum 27 are sleeved on the outside of the limiting support ring 44 , and seeding drums 28 are evenly spaced in the middle of the outside of the seeding drum 27 , and the seeding drums 28 are connected to the leakage holes 49 on the inner wall of the seeding drum 27 .

[0073] The outer diameters of the limiting support ring 44 and the intermediate ring 46 are consistent, so that the outer walls of the intermediate ring 46 and the limiting support ring 44 are close to the inner wall of the seeding drum 27, which plays a role in smooth rotation of the seeding drum 27.

[0074] The seeds in the temporary seed storage bucket 10 enter the inside of the sowing drum 27 through the corrugated curved pipe 9, and as the sowing drum 27 rotates, the inner wall of the sowing drum 27 drives the seeds to move upward, and after moving up a certain distance, the seeds fall again under the action of their own gravity, thereby stirring the seeds, and the material-diverting plate 47 can also stir the seeds at this time, preventing the seeds from sticking together and causing the seeds to be unable to leak out through the sowing drum 28;

[0075] When the sowing drum 27 rotates, the middle ring 46 is always in a stationary state, and when the leakage gap 48 at the lower end of the middle ring 46 is connected with the corresponding leakage hole 49, the seeds in the sowing drum 27 enter the corresponding sowing barrel 28 through the leakage gap 48 and the leakage hole 49 in turn, and fall into the ground soil through the sowing barrel 28 to complete the sowing.

[0076] When the film is pierced at the bottom of the sowing barrel 28 to enter the soil, in order to prevent the ground soil from clogging the sowing barrel 28, a duckbill opener covering the outer side of the bottom of the sowing barrel 28 can be provided on the sowing drum 27. The duckbill opener utilizes a unique duckbill shape design to pierce the film and dig a pit in the soil, and sow seeds into the soil along the pit.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cotton seeder in melon-cotton interplanting mode, comprising a frame, a connecting frame for mounting a tractor is provided at the middle of the front end of the frame, and the characteristics are: The upper front end of the frame is provided with a film retracting roller, and the middle lower end of the frame is provided with a support wheel and a guide wheel driven between two sets of support wheels; A middle connecting cylinder is centrally installed at the rear of the lower end of the frame, and soil covering rollers are movably connected to the two ends of the middle connecting cylinder. Walking plates are evenly spaced on the outer end surface of the soil covering roller, and oblique scraping wheels are also arranged on the outer side of the outer end of the soil covering roller on both sides of the rear of the frame; When the traction tractor pulls the frame forward, the support wheel pulls the film on the film retracting roller through the guide wheel and spreads it on the ground, and the oblique scraping wheel covers the ground soil on both sides of the film and also moves a part of the ground soil into the soil covering roller. Under the rolling of the soil covering roller, the soil in the soil covering roller is laid on the film at intervals; When the soil covering drum rolls, the driving assembly also drives the stirring assembly in the middle of the soil covering drum to rotate, and the soil covering drum and the stirring assembly rotate in opposite directions to prevent the soil from being blocked in the soil covering drum; At the same time, the self-propelled sowing drum assembly at the rear end of the frame punctures the film and sows the seeds in the soil.

2. The cotton seeder in melon-cotton interplanting mode according to claim 1, characterized in that: Mounting seats for mounting film retracting and unwinding rollers are provided on both sides of the upper front end of the frame; Vertical plates for mounting support wheels are provided on both sides of the middle of the lower end of the frame, and a rotating rod connected to the middle of the support wheel penetrates the vertical plates, and guide wheels are evenly spaced on the rotating rod; A mounting frame is arranged at the upper end of the rear part of the frame, the oblique scraper wheel is movably connected to the inner side of the bottom of the connecting plate, and the connecting plate is fixed by bolts after passing through the mounting frame.

3. The cotton seeder in melon-cotton interplanting mode according to claim 1, characterized in that: The top of the middle connecting tube is connected and fixed to the rear inner wall of the frame by a fixing frame.

4. The cotton seeder in melon-cotton interplanting mode according to claim 1, characterized in that: The inner wall of the soil covering drum is evenly spaced with soil pushing plates, which are used to push the soil just entering the soil covering drum into the inside of the soil covering drum when the soil covering drum rolls. Soil leakage grooves are evenly spaced at both ends of the surface of the soil covering drum.

5. The cotton seeder in melon-cotton interplanting mode according to claim 4, characterized in that: The driving assembly comprises an outer gear ring fixed on the outer side of the inner end of the soil covering roller, a gear meshed with the top of the outer gear ring, a first belt pulley fixed between the two sets of gears through a rotating shaft, and a second belt pulley centrally arranged inside the middle connecting cylinder; The top of the middle connecting tube is provided with raised plates on both sides, the rotating shaft passes through the raised plates, the top of the middle connecting tube is provided with an open groove, the belt on the first pulley extends into the middle connecting tube through the open groove and then connects with the second pulley; The stirring assembly includes a long rod that passes through the second pulley and extends into the soil covering drum, and a stirring rod arranged on the surface of the long rod. Sealing disks are arranged at both ends of the middle connecting tube, and the sealing disks are sleeved on the outside of the long rod.

6. The cotton seeder in melon-cotton intercropping mode according to claim 5, characterized in that: The two ends of the middle connecting tube are provided with annular grooves, the inner end of the soil covering drum is inserted into the annular groove, and U-shaped frames are symmetrically fixed on the outer sides of the two ends of the middle connecting tube, and the outer ends of the two sets of U-shaped frames are connected to the limiting ring seats, and the limiting ring seats are sleeved on the outer ends of the soil covering drum. A cleaning rod is provided on the inner wall of the U-shaped frame, and the cleaning rod is tightly attached to the outer wall of the soil covering drum; A positioning ring is screwed on the outer side of the soil covering drum, and the positioning ring is located on the inner side of the corresponding limiting ring seat.

7. The cotton seeder in melon-cotton interplanting mode according to claim 1, characterized in that: The self-propelled seeding drum assembly comprises an L-shaped frame with equal spacing at the rear end of the frame, a seed temporary storage bucket fixed at the rear end of the horizontal part of the L-shaped frame, an extension plate movably connected by a pin at the bottom of the vertical part of the L-shaped frame, sealing heads fixed on both sides of the inner wall of the U-shaped bracket at the rear end of the extension plate, and a seeding drum sleeved between the sealing heads; The two sides of the bottom of the seed temporary storage bucket are connected to the sealing head by using corrugated curved pipes, and the sowing drum is connected with the seed temporary storage bucket through the corrugated curved pipes.

8. The cotton seeder in melon-cotton interplanting mode according to claim 7, characterized in that: A horizontal plate is fixed on the upper side of the vertical portion of the L-shaped frame, and a tension spring is connected between the horizontal plate and the extension plate.

9. The cotton seeder in melon-cotton interplanting mode according to claim 7, characterized in that: The sealing head comprises a plugging disk fixed on both sides of the inner wall of the U-shaped bracket and a limiting support ring fixed on the inner end of the plugging disk, two groups of reinforcing plates symmetrically connected between the inner walls of the limiting support ring, a material shifting plate arranged on the inner wall of the reinforcing plate, an intermediate ring sleeved and fixed in the middle between the two groups of reinforcing plates, and a material leakage notch arranged at the bottom of the intermediate ring; The two ends of the seeding drum are sleeved on the outside of the limit support ring, and seeding drums are evenly distributed in the middle of the outer side of the seeding drum. The seeding drums are connected with the leakage holes on the inner wall of the seeding drum.

10. The cotton seeder in melon-cotton interplanting mode according to claim 9, characterized in that: The outer diameters of the limiting support ring and the intermediate ring are consistent.

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