Precision seeder for cotton film mulching

Abstract

The invention belongs to the technical field of cotton planting, and discloses a cotton film mulching precision seeder which comprises a main body rack, a film releasing mechanism is arranged in the middle of the main body rack, a film roll is placed on the top of the film releasing mechanism, a film unfolding roller is rotationally connected to the middle of the main body rack, and a folding assembly and a film pressing wheel are arranged on the side face of the film unfolding roller. A ditching assembly and a ditch cleaning assembly are arranged in the middle of the main body rack, and a soil retaining plate is arranged on the side face of the ditch cleaning assembly; through cooperation of the folding assembly, the film pressing wheel and other structures, corners of a mulching film can be folded conveniently, the mulching film cannot be pulled and damaged, when the mulching film passes through the top of the folding assembly, a transmission pressing rod downwards presses a film pressing rod, the film pressing rod extrudes the mulching film to enter the position between elastic clamping rods, and the mulching film can be folded conveniently. The two ends of the mulching film are in a concave folded state, the mulching film is pressed into the groove from the concave portion of the mulching film through the film pressing wheel, and then soil covering and burying are conducted.

Description

Technical Field

[0001] The invention belongs to the technical field of cotton planting, in particular to a cotton film-laying precision seeder. Background Art

[0002] A cotton seeder is a mechanized equipment used in agriculture, mainly used in the sowing process of cotton planting.

[0003] China Patent Network Publication No.: CN108684239A provides a cotton sowing machine, which relates to a cotton sowing machine, including a hanging slipknot set at the front end of the frame as the front fulcrum, and a rotary tillage mechanism, a shock-pressing mechanism, a soil-covering roller and a sowing device are sequentially installed under the frame from front to back; the shock-pressing mechanism includes a shock-pressing roller suspended by a shock-pressing roller suspension frame, a belt disc is arranged above the shock-pressing mechanism, and the drip irrigation belt is led out from the belt disc and spread on the ground through the shock-pressing roller; a film-laying mechanism is arranged between the shock-pressing mechanism and the soil-covering roller, and the film-laying mechanism includes a ground film reel and a ground film spreading roller suspended by a film-laying suspension frame, and a film edge sealing disc is arranged behind the ground film spreading roller; the soil-covering roller is directly fixed to the rear part of the frame as the rear fulcrum of the frame, and soil-taking discs are arranged on both sides of the soil-covering roller. In the process of film laying, the present invention has neat film covering, flat film inside, compacted edge, strong wind resistance, uniform and sufficient soil covering on the film, continuous soil ridges, and overall improved sowing quality. After laying the film, the ground temperature can also be increased, which has the advantages of wind resistance, warming, convenience and cost saving.

[0004] However, in this solution, soil is directly covered when covering the ground film. This covering method may result in incompletely covered areas at the edge of the ground film and uncompacted areas of the ground film. Therefore, a cotton film-laying precision seeder is proposed. Summary of the invention

[0005] In order to solve the problem of uncompacted ground film mentioned in the above background technology, the present invention provides a cotton film laying precision seeder.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cotton film-laying precision seeder, comprising a main frame, a film-laying mechanism is arranged in the middle of the main frame, a film roll is placed on the top of the film-laying mechanism, a film-unrolling roller is rotatably connected in the middle of the main frame, a folding component and a film-pressing wheel are arranged on the side of the film-unrolling roller, a ditch-opening component and a ditch-clearing component are arranged in the middle of the main frame, and a retaining plate is arranged on the side of the ditch-clearing component;

[0007] The folding component includes a bottom bracket and a transmission pressure rod, the top of the bottom bracket is fixedly connected to a transverse sliding rod, the middle of the transverse sliding rod is slidably connected to a pair of elastic clamping rods, one end of the elastic clamping rods is fixedly connected to a spring, and the end of the transmission pressure rod close to the bottom bracket is fixedly connected to a film pressing rod.

[0008] Preferably, the film spreading roller is located at the lower side of the film placing mechanism, the folding assembly is located between the film spreading roller and the film pressing wheel, the ditching assembly and the ditch clearing assembly are located at the side of the film spreading roller away from the folding assembly, and the ditch clearing assembly is located between the film spreading roller and the ditching assembly.

[0009] Preferably, the bottom bracket is fixedly connected to the main frame, the middle position of the pair of elastic clamping rods is in the same straight line as the film pressing wheel, the ditch opening assembly and the ditch clearing assembly, the spring is fixedly connected to the bottom bracket, the transmission pressure rod is rotatably connected to the main frame, and a first sliding groove is provided at the end of the transmission pressure rod away from the film pressing rod. The film pressing rod and the middle position of the pair of elastic clamping rods are kept in a vertical state, and the transmission pressure rod presses the film pressing rod downward to cause the film pressing rod to enter the middle of the elastic clamping rod.

[0010] Preferably, the trenching assembly comprises a trencher, a soil dividing groove is formed at the lower end of the trencher, teeth are formed at the upper side of the trencher, and a clamping block is clamped inside the teeth;

[0011] The ditch opener is slidably connected to the main frame, the soil dividing groove is retracted toward a side away from the ditch clearing assembly, and the clamping block is fixedly connected to the main frame by bolts.

[0012] Preferably, the ditch clearing assembly comprises a motor and a bulldozer mechanism, a second support rod and a third support rod are arranged inside the bulldozer mechanism, a limiting inclined plate is arranged on the side of the bulldozer mechanism, and the motor is connected to a conveying roller through a chain drive.

[0013] Preferably, the motor is fixedly connected to the main frame, the second support rod is located on the upper side of the third support rod, the end of the third support rod away from the second support rod is plate-shaped, the second support rod and the third support rod are both fixedly connected to the bulldozer mechanism, the limiting inclined plate is inclined downward toward the ditching assembly, and the conveying roller is located on the upper side of the limiting inclined plate.

[0014] Preferably, the bulldozer mechanism includes an electric telescopic rod, the output end of the electric telescopic rod is rotatably connected to a support partition, and both sides of the support partition are movably connected to a bulldozer flap and a limiting push-pull plate, the top of the bulldozer flap is fixedly connected to a first support rod, and the bottom of the limiting push-pull plate is rotatably connected to an L-shaped push plate, and a limiting slide groove is provided at the bottom of the L-shaped push plate.

[0015] Preferably, the support partition penetrates the main frame and extends to the lower side of the main frame, the top of the support partition is slidably connected inside the transmission pressure rod slide groove, and a second slide groove and a third slide groove are opened in the middle of the support partition, and are slidably connected to the second support rod and the third support rod respectively.

[0016] Preferably, the bulldozer flap is divided into two parts: a vertical plate and a transverse plate, wherein the vertical plate is slidingly connected to the second support rod, one end of the transverse plate is rotatably connected to the third support rod, the bulldozer flap is in conflict with the support partition, and the first support rod is rotatably connected to the support partition.

[0017] Preferably, the limiting push-pull plate is divided into two parts: a support plate and a rotating connecting rod, wherein the middle part of the support plate is rotatably connected to the second support rod, and the top of the support plate is rotatably connected to the first support rod, wherein the two ends of the rotating connecting rod located on the upper side are rotatably connected to the first support rod and the L-shaped push plate respectively, wherein the two ends of the rotating connecting rod located on the lower side are rotatably connected to the support plate and the L-shaped push plate respectively, and the inside of the limiting sliding groove is slidably connected to the plate-like part of the third support rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention facilitates folding the edges and corners of the ground film by arranging the cooperation of the folding assembly and the film pressing wheel and other structures, so that the ground film will not be pulled and damaged. When the ground film passes through the top of the folding assembly, the film pressing rod is pressed down by the transmission pressing rod, and the film pressing rod squeezes the ground film into between the elastic clamping rods, so that the two ends of the ground film are in a concave folded state, and the film pressing wheel presses the ground film from the concave part of the ground film into the inside of the groove, and then covers the ground film with soil, so that when the ground film is pressed into the groove, the position between the pressed part and the outside part of the groove will not be pulled;

[0020] The present invention cooperates with structures such as a bulldozer flap and a limiting inclined plate to transport the loose soil inside the groove to the outside of the groove, and the limiting inclined plate collects and lifts the loose soil inside the groove. The motor drives the conveying roller to rotate through a chain, so that the conveying roller pushes the sand to the top of the transverse plate of the bulldozer flap, and the bulldozer flap is turned and pushed to discharge the loose soil to the side of the groove, so as to clean the loose soil inside the groove.

[0021] The present invention facilitates pushing the loose soil on the side of the groove to the outside by a certain distance by setting the cooperation of structures such as the supporting partition and the L-shaped push plate. The supporting partition pulls the limiting push-pull plate through the first supporting rod to move up and down, so that the limiting push-pull plate pushes the L-shaped push plate to move laterally through the rotating connecting rod. The L-shaped push plate pushes the loose soil on the edge of the groove to the outside to prevent the loose soil from falling back into the groove again, thereby ensuring that the depth inside the groove meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the mechanical main body of the present invention;

[0023] Figure 2 It is a partially enlarged schematic diagram of the film placing mechanism of the present invention;

[0024] Figure 3It is an overall schematic diagram of the folding assembly of the present invention;

[0025] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0026] Figure 5 A side partial cross-sectional view of the ditch cleaning assembly of the present invention;

[0027] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0028] Figure 7 It is a schematic diagram of the bulldozing surface of the ditch clearing assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of the disassembly of the bulldozer mechanism of the present invention.

[0030] In the figure: 1. main frame; 2. film placing mechanism; 3. film roll; 4. film spreading roller; 5. folding assembly; 51. bottom bracket; 52. horizontal slide bar; 53. elastic clamping rod; 54. spring; 55. transmission pressure rod; 56. film pressing rod; 6. film pressing wheel; 7. trenching assembly; 71. trenching device; 72. soil dividing trough; 73. teeth; 74. block; 8. trenching assembly; 81. motor; 82. bulldozer mechanism; 821. electric telescopic rod; 822. supporting partition; 823. bulldozer flap; 824. first support rod; 825. limit push-pull plate; 826. L-shaped push plate; 827. limit slide groove; 83. second support rod; 84. third support rod; 85. limit inclined plate; 86. conveying roller; 9. retaining plate. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figures 1 to 8 As shown, the present invention provides a cotton film-laying precision seeder, comprising a main frame 1, a film-laying mechanism 2 is arranged in the middle of the main frame 1, a film roll 3 is placed on the top of the film-laying mechanism 2, a film-unfolding roller 4 is rotatably connected in the middle of the main frame 1, a folding component 5 and a film-pressing wheel 6 are arranged on the side of the film-unfolding roller 4, a ditch-opening component 7 and a ditch-clearing component 8 are arranged in the middle of the main frame 1, and a soil retaining plate 9 is arranged on the side of the ditch-clearing component 8;

[0033] The folding component 5 includes a bottom bracket 51 and a transmission pressure rod 55. A transverse sliding rod 52 is fixedly connected to the top of the bottom bracket 51. A pair of elastic clamping rods 53 are slidably connected to the middle of the transverse sliding rod 52. One end of the elastic clamping rods 53 is fixedly connected to a spring 54. The transmission pressure rod 55 is fixedly connected to a film pressing rod 56 at one end close to the bottom bracket 51.

[0034] The above scheme is adopted: the trenching device 71 is used to trench the land, and then the limit inclined plate 85 collects and lifts the loose soil inside the trench, and at the same time the conveying roller 86 pushes the sand to the top of the transverse plate of the bulldozer flap 823, and then the electric telescopic rod 821 drives the supporting partition 822 to move up and down, so that the supporting partition 822 synchronously pulls the bulldozer flap 823 and the limit push-pull plate 825 to move up and down, and the bulldozer flap 823 discharges the loose soil to the side of the trench, and then the limit push-pull plate 825 pushes L The L-shaped push plate 826 moves, so that the L-shaped push plate 826 pushes the loose soil on the edge of the groove outward to prevent the loose soil from falling back into the groove again, thereby cleaning the inside of the groove; when the ground film passes through the top of the folding component 5, the transmission pressure rod 55 presses down the film pressing rod 56, so that the film pressing rod 56 squeezes the ground film into between the elastic clamping rods 53, so that the two ends of the ground film are in a concave folded state, and then the film pressing wheel 6 presses the ground film down to the inside of the groove from the concave part of the ground film, and then covers it with soil to complete the covering of the ground film.

[0035] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the film spreading roller 4 is located at the lower side of the film placing mechanism 2, the folding assembly 5 is located between the film spreading roller 4 and the film pressing wheel 6, the ditching assembly 7 and the ditch clearing assembly 8 are located on the side of the film spreading roller 4 away from the folding assembly 5, and the ditch clearing assembly 8 is located between the film spreading roller 4 and the ditching assembly 7, the bottom bracket 51 is fixedly connected to the main frame 1, the middle position of a pair of elastic clamping rods 53 is in the same straight line as the film pressing wheel 6, the ditching assembly 7 and the ditch clearing assembly 8, the spring 54 is fixedly connected to the bottom bracket 51, the transmission pressure rod 55 is rotatably connected to the main frame 1, and the end of the transmission pressure rod 55 away from the film pressing rod 56 is provided with a first sliding groove, the film pressing rod 56 and the middle position of the pair of elastic clamping rods 53 are kept in a vertical state, and the transmission pressure rod 55 presses down the film pressing rod 56 so that the film pressing rod 56 enters the middle of the elastic clamping rod 53.

[0036] The above scheme is adopted: by setting a film spreading roller 4, the film spreading roller 4 unfolds the ground film released from the film roll 3, and then the ground film passes around the bottom of the film spreading roller 4 and passes through the top of the folding component 5. When the ground film passes through the top of the folding component 5, the transmission pressure rod 55 presses down the film pressing rod 56, so that the film pressing rod 56 squeezes the ground film into between the elastic clamping rods 53, so that the two ends of the ground film are in a concave folded state, and the film pressing wheel 6 presses the ground film down to the inside of the groove from the concave part of the ground film. , and then cover it with soil. By setting the middle position of the elastic clamping rod 53 and the film pressing wheel 6 on the same straight line, the film pressing wheel 6 and the concave part of the ground film are in the same straight line, so that when the film pressing wheel 6 presses the ground film into the groove, the ground film will not be pulled excessively and damaged. The setting of the elastic clamping rod 53 and the spring 54 makes it possible for the ground film to be clamped in the middle by the elastic clamping rod 53 when the film pressing rod 56 detaches from the middle of the elastic clamping rod 53, so that the ground film will not be pulled back by the film spreading roller 4.

[0037] like Figure 5 , Figure 7 and Figure 8 As shown, the trenching assembly 7 includes a trench opener 71, a soil dividing groove 72 is provided at the lower end of the trench opener 71, teeth 73 are provided on the upper side of the trench opener 71, and a clamping block 74 is clamped inside the teeth 73; the trench opener 71 is slidably connected to the main frame 1, the soil dividing groove 72 is retracted toward the side away from the trench cleaning assembly 8, and the clamping block 74 is fixedly connected to the main frame 1 by bolts.

[0038] The above scheme is adopted: by setting up the trenching assembly 7, the trencher 71 trenches the land, and the soil dividing groove 72 is set to converge in the opposite direction of forward movement, so that the excavated sand and soil are pushed to both sides. The setting of the teeth 73 and the block 74 can facilitate the disassembly and replacement of the trencher 71.

[0039] like Figures 5 to 8 As shown, the ditch clearing assembly 8 includes a motor 81 and a bulldozer mechanism 82, a second support rod 83 and a third support rod 84 are arranged inside the bulldozer mechanism 82, a limiting inclined plate 85 is arranged on the side of the bulldozer mechanism 82, the motor 81 is connected to the conveying roller 86 through a chain drive, the motor 81 is fixedly connected to the main frame 1, the second support rod 83 is located on the upper side of the third support rod 84, the end of the third support rod 84 away from the second support rod 83 is in a plate shape, the second support rod 83 and the third support rod 84 are both fixedly connected to the bulldozer mechanism 82, the limiting inclined plate 85 is inclined downward toward the ditching assembly 7, and the conveying roller 86 is located on the upper side of the limiting inclined plate 85.

[0040] The above scheme is adopted: by setting up the ditch cleaning component 8, the motor 81 drives the conveying roller 86 to rotate through the chain, so that the conveying roller 86 pushes the sand to the top of the transverse plate of the bulldozer flap 823, and the second support rod 83 and the third support rod 84 are set to support the bulldozer mechanism 82. The end of the third support rod 84 away from the second support rod 83 is set to a plate shape, so that the L-shaped push plate 826 can maintain horizontal movement. The setting of the limiting inclined plate 85 and the conveying roller 86 can facilitate the collection and lifting of the loose soil inside the ditch.

[0041] like Figures 5 to 8 As shown, the bulldozer mechanism 82 includes an electric telescopic rod 821, the output end of the electric telescopic rod 821 is rotatably connected to a support partition 822, and both sides of the support partition 822 are movably connected to a bulldozer flap 823 and a limit push-pull plate 825, the top of the bulldozer flap 823 is fixedly connected to a first support rod 824, and the bottom of the limit push-pull plate 825 is rotatably connected to an L-shaped push plate 826, and a limit slide groove 827 is provided at the bottom of the L-shaped push plate 826. The support partition 822 penetrates the main frame 1 and extends to the bottom of the main frame 1. On the side, the top of the support partition 822 is slidably connected to the inside of the slide groove of the transmission pressure rod 55, and the second slide groove and the third slide groove are opened in the middle of the support partition 822, and are slidably connected to the second support rod 83 and the third support rod 84 respectively. The bulldozer flap 823 is divided into a vertical plate and a horizontal plate. The vertical plate is slidably connected to the second support rod 83, and one end of the horizontal plate is rotatably connected to the third support rod 84. The bulldozer flap 823 conflicts with the support partition 822, and the first support rod 824 is rotatably connected to the support partition 822.

[0042] The above scheme is adopted: by setting up a bulldozer mechanism 82, the electric telescopic rod 821 drives the supporting partition 822 to move up and down, so that the supporting partition 822 pulls the first supporting rod 824 to move synchronously, and the first supporting rod 824 synchronously pulls the bulldozer flap 823 and the limiting push-pull plate 825 to move up and down, and the bulldozer flap 823 discharges the loose soil to the side of the groove, and then the limiting push-pull plate 825 pushes the L-shaped push plate 826 to move, so that the L-shaped push plate 826 pushes the loose soil on the edge of the groove to the outside to prevent the loose soil from falling back into the groove again, and by setting the bulldozer flap 823 as a vertical plate and a horizontal plate, the vertical plate pulls the horizontal plate to flip up and down, so that the horizontal plate can discharge the loose soil.

[0043] like Figures 5 to 8 As shown, the limiting push-pull plate 825 is divided into two parts: a support plate and a rotating connecting rod, wherein the middle part of the support plate is rotatably connected to the second support rod 83, and the top of the support plate is rotatably connected to the first support rod 824, wherein the two ends of the rotating connecting rod located on the upper side are rotatably connected to the first support rod 824 and the L-shaped push plate 826 respectively, wherein the two ends of the rotating connecting rod located on the lower side are rotatably connected to the support plate and the L-shaped push plate 826 respectively, and the inside of the limiting slide groove 827 is slidably connected to the plate-like part of the third support rod 84.

[0044] The above scheme is adopted: by setting a limiting push-pull plate 825, the support plate part is rotatably connected to the first support rod 824, and the middle part is slidably connected to the second support rod 83 to maintain a vertical state, and the support plate can be pulled up and down by the first support rod 824. When the support plate slides, the L-shaped push plate 826 can be pulled to move by rotating the connecting rod, so that the L-shaped push plate 826 can move horizontally along the limiting slide groove 827. The limiting slide groove 827 is set to be slidably connected to the plate-like part of the third support rod 84, so that the L-shaped push plate 826 can maintain horizontal sliding.

[0045] The working principle and use process of the present invention are as follows: during operation, the trenching device 71 is used to trench the land, and then the limiting inclined plate 85 collects and lifts the loose soil inside the trench, and then the motor 81 is started to drive the conveying roller 86 to rotate through the chain, so that the conveying roller 86 pushes the sand to the top of the transverse plate of the bulldozer flap 823, and at the same time the electric telescopic rod 821 is started, and the electric telescopic rod 821 drives the supporting partition 822 to move up and down, so that the supporting partition 822 pulls the first supporting rod 824 to move synchronously, so that the first supporting rod 824 synchronously pulls the bulldozer flap 823 and the limiting push-pull plate 825 to move up and down, and the bulldozer flap 823 discharges the loose soil to the side of the trench, and then the limiting push-pull plate 825 pushes the L-shaped push plate 826 to move, so that the L-shaped push plate 826 pushes the loose soil on the edge of the trench to the outside, so as to prevent the loose soil from falling back into the trench again, thereby cleaning the trench interior;

[0046] While grooving, the film released from the film roll 3 is unfolded by the film spreading roller 4, and then the film goes around the bottom of the film spreading roller 4 and passes through the top of the folding component 5. When the film passes the top of the folding component 5, the transmission pressure rod 55 presses down the film pressing rod 56, so that the film pressing rod 56 squeezes the film into between the elastic clamping rods 53, so that the two ends of the film are in a concave folded state, and then the film pressing wheel 6 presses the film down to the inside of the groove from the concave part of the film, and then covers it with soil to complete the covering of the film.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] 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 film-laying precision seeder, comprising a main frame (1), characterized in that: A film placing mechanism (2) is arranged in the middle of the main frame (1), a film roll (3) is placed on the top of the film placing mechanism (2), a film spreading roller (4) is rotatably connected to the middle of the main frame (1), a folding assembly (5) and a film pressing wheel (6) are arranged on the side of the film spreading roller (4), a ditch opening assembly (7) and a ditch clearing assembly (8) are arranged in the middle of the main frame (1), and a soil retaining plate (9) is arranged on the side of the ditch clearing assembly (8); The folding assembly (5) comprises a bottom bracket (51) and a transmission pressure rod (55); the top of the bottom bracket (51) is fixedly connected to a transverse sliding rod (52); the middle of the transverse sliding rod (52) is slidably connected to a pair of elastic clamping rods (53); one end of each of the elastic clamping rods (53) is fixedly connected to a spring (54); and one end of the transmission pressure rod (55) close to the bottom bracket (51) is fixedly connected to a film pressing rod (56).

2. The cotton film-laying precision seeder according to claim 1, characterized in that: The film spreading roller (4) is located at the lower side of the film placing mechanism (2), the folding assembly (5) is located between the film spreading roller (4) and the film pressing wheel (6), the ditch opening assembly (7) and the ditch clearing assembly (8) are located at the side of the film spreading roller (4) away from the folding assembly (5), and the ditch clearing assembly (8) is located between the film spreading roller (4) and the ditch opening assembly (7).

3. The cotton film-laying precision seeder according to claim 1, characterized in that: The bottom bracket (51) is fixedly connected to the main frame (1); the middle positions of the pair of elastic clamping rods (53) are in the same straight line as the film pressing wheel (6), the ditch opening assembly (7) and the ditch clearing assembly (8); the spring (54) is fixedly connected to the bottom bracket (51); the transmission pressure rod (55) is rotatably connected to the main frame (1); a first sliding groove is provided at one end of the transmission pressure rod (55) away from the film pressing rod (56); the film pressing rod (56) and the middle position of the pair of elastic clamping rods (53) are kept in a vertical state; and the transmission pressure rod (55) presses down the film pressing rod (56) so that the film pressing rod (56) enters the middle of the elastic clamping rod (53).

4. The cotton film-laying precision seeder according to claim 1, characterized in that: The furrowing assembly (7) comprises a furrowing device (71), a soil dividing groove (72) is provided at the lower end of the furrowing device (71), teeth (73) are provided at the upper side of the furrowing device (71), and a clamping block (74) is clamped inside the teeth (73); The ditch opener (71) is slidably connected to the main frame (1), the soil dividing groove (72) is retracted toward a side away from the ditch clearing assembly (8), and the clamping block (74) is fixedly connected to the main frame (1) by bolts.

5. The cotton film-laying precision seeder according to claim 1, characterized in that: The ditch clearing assembly (8) comprises a motor (81) and a bulldozer mechanism (82), wherein a second support rod (83) and a third support rod (84) are arranged inside the bulldozer mechanism (82), a limiting inclined plate (85) is arranged on the side of the bulldozer mechanism (82), and the motor (81) is connected to a conveying roller (86) via a chain drive.

6. The cotton film-laying precision seeder according to claim 5, characterized in that: The motor (81) is fixedly connected to the main frame (1); the second support rod (83) is located on the upper side of the third support rod (84); one end of the third support rod (84) away from the second support rod (83) is in a plate shape; the second support rod (83) and the third support rod (84) are both fixedly connected to the bulldozer mechanism (82); the limiting inclined plate (85) is inclined downward toward the trenching assembly (7); and the conveying roller (86) is located on the upper side of the limiting inclined plate (85).

7. The cotton film-laying precision seeder according to claim 5, characterized in that: The bulldozer mechanism (82) comprises an electric telescopic rod (821), the output end of the electric telescopic rod (821) is rotatably connected to a support baffle (822), both sides of the support baffle (822) are movably connected to a bulldozer flap (823) and a limit push-pull plate (825), the top of the bulldozer flap (823) is fixedly connected to a first support rod (824), the bottom of the limit push-pull plate (825) is rotatably connected to an L-shaped push plate (826), and a limit slide groove (827) is provided at the bottom of the L-shaped push plate (826).

8. The cotton film-laying precision seeder according to claim 7, characterized in that: The support baffle (822) penetrates the main frame (1) and extends to the lower side of the main frame (1); the top of the support baffle (822) is slidably connected to the inside of the sliding groove of the transmission pressure rod (55); a second sliding groove and a third sliding groove are opened in the middle of the support baffle (822), and are slidably connected to the second support rod (83) and the third support rod (84) respectively.

9. The cotton film-laying precision seeder according to claim 7, characterized in that: The bulldozer flap (823) is divided into two parts: a vertical plate and a horizontal plate, wherein the vertical plate is slidably connected to the second support rod (83), and one end of the horizontal plate is rotatably connected to the third support rod (84). The bulldozer flap (823) is in conflict with the support partition (822), and the first support rod (824) is rotatably connected to the support partition (822).

10. The cotton film-laying precision seeder according to claim 7, characterized in that: The limiting push-pull plate (825) is divided into two parts: a support plate and a rotating connecting rod, wherein the middle part of the support plate is rotatably connected to the second support rod (83), and the top of the support plate is rotatably connected to the first support rod (824), wherein the two ends of the rotating connecting rod located on the upper side are rotatably connected to the first support rod (824) and the L-shaped push plate (826) respectively, wherein the two ends of the rotating connecting rod located on the lower side are rotatably connected to the support plate and the L-shaped push plate (826) respectively, and the inside of the limiting sliding groove (827) is slidably connected to the plate-like part of the third support rod (84).

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