Anti-skid film laying device of rice full-mulching dry direct seeding machine

Abstract

The utility model discloses a kind of anti-skid film laying devices of rice full mulching dry direct seeding machine, including the support plate of front end rotation connection in dry direct seeding machine frame both sides, fixed beam, cylinder and placing rack are sequentially equipped between two support plates, cylinder is rotatably installed on support plate by bearing, the surface of cylinder is evenly provided with several antiskid strips along the circumferential direction, film roller is equipped on placing rack, film roller is equipped with mulch tube, the mulch on mulch tube is guided to the seeding wheel below dry direct seeding machine from the front of upper direction, then from the rear of lower direction of cylinder.The utility model has the characteristics that mulch is laid flat, avoids broken film and film, and reduces the excessive tension of mulch.

Description

Technical Field

[0001] This utility model relates to a film-laying device for rice planting, and in particular to an anti-slip film-laying device for a dry direct seeding machine with full film covering for rice. Background Technology

[0002] Rice direct seeding with full mulch involves a series of steps on dry land, including tilling, fertilizing, laying mulch, covering with soil, watering, sowing, and cutting the mulch. This method achieves dryland rice cultivation with significant advantages in drought resistance, water conservation, fertilizer conservation, green production, high yield, and high efficiency. It is suitable for water-scarce areas and is of great significance for the development of the rice industry and food security in water-scarce and arid regions.

[0003] A typical rice direct seeding machine with full mulch film generally includes a rotary tillage device, a fertilization device, a mulch film laying device, a soil covering device, a watering device, and a seeding device. Existing mulch film laying devices have a relatively simple structure, merely installing mulch film laying rollers for laying the mulch film. This structure leads to the following problems: First, the film often drags at the beginning of the work, causing the rice seed holes to misalign with the film holes, preventing the seedlings from emerging properly and causing them to die from being pressed under the film. Second, the film laying rollers may slip due to resistance from soil, weeds, stones, etc., when they roll freely, resulting in excessive longitudinal tension on the film, leading to film breakage and dragging. Third, due to the high longitudinal tension on the film, the lateral shrinkage on both sides of the film is too large, and the two sowing widths of the film cannot overlap, resulting in bare ground, moisture loss, and weed growth.

[0004] In summary, existing plastic film laying devices easily lead to decreased sowing quality, poor drought resistance and moisture retention, and ineffective weed control, seriously affecting rice yield and quality. Utility Model Content

[0005] The purpose of this invention is to provide an anti-slip film-laying device for a rice direct seeding machine with full mulch film coverage. This invention features flat film laying, avoids film breakage and dragging, and reduces excessive tension on the film.

[0006] The technical solution of this utility model is as follows: an anti-slip film laying device for a rice full-coverage dry direct seeding machine, including a support plate rotatably connected to both sides of the dry direct seeding machine frame at the front end, a fixed beam, a roller and a placement frame arranged sequentially between the two support plates, the roller being rotatably mounted on the support plate through bearings, the surface of the roller being evenly provided with a number of anti-slip strips along the circumferential direction, a film roller being provided on the placement frame, a film tube being sleeved on the film roller, the film on the film tube passing over the roller from above and then being guided from below the roller to below the seeding wheel of the dry direct seeding machine.

[0007] In the aforementioned anti-slip film-laying device for a rice full-coverage dry direct seeding machine, the support plate is provided with multiple positioning holes for mounting the device frame.

[0008] In the aforementioned anti-slip film laying device for a rice full-coverage dry direct seeding machine, the placement frame includes a first connecting part, a second connecting part, and a handle part. A V-shaped groove for placing the film roller is formed between the first connecting part and the second connecting part. The front end of the first connecting part is rotatably connected to the support plate by a shaft pin, and the rear end of the second connecting part is fixedly connected to the support plate by a movable pin.

[0009] In the aforementioned anti-slip film-laying device for a rice full-coverage dry direct seeding machine, the front end of the support plate extends away from the film roller to form a drop limiting rod, and the drop limiting rod is provided with a plurality of linearly arranged mounting holes.

[0010] In the aforementioned anti-slip film-laying device for a rice full-coverage dry direct seeding machine, a film-pressing wheel is provided on the support plate behind the film roller. The film-pressing wheel includes a film-pressing bracket connected to the support plate by a shaft pin. A film-pressing roller is rotatably connected to the film-pressing bracket, and a tension spring is provided between the film-pressing bracket and the support plate.

[0011] In the aforementioned anti-slip film-laying device for a rice full-coverage dry direct seeding machine, the film-pressing bracket is provided with multiple tension holes for connecting tension springs.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, the film roller and drum are aligned with the forward direction of the dry direct seeding machine, pressing the mulch film as it rolls forward. This ensures that the rotational linear speed of the drum is the same as the walking speed of the dry direct seeding machine, preventing dragging and allowing for a certain longitudinal allowance during mulch film laying. This ensures the mulch film is laid flat, preventing issues such as film dragging, film breakage, or inward rolling. This also avoids misalignment between the film holes and the seed holes, achieving full mulch film coverage for sowing and effectively preventing weed infestation and severe moisture loss.

[0013] The anti-slip strips protect the roller from wear and corrosion, increase the friction between the roller and the ground and the mulch film, and reduce the excessive tension of the mulch film caused by roller slippage; reduce the slippage of the mulch film. At the same time, due to the sudden action of the anti-slip strips, the circumference of the mulch film around the roller is greater than the circumference of the roller, increasing the mulch film allowance and offsetting the excessive tension. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the roller structure.

[0015] The markings in the attached diagram are as follows: 31, support plate; 311, drop limit rod; 312, positioning hole; 313, mounting hole; 32, fixing beam; 33, roller; 331, anti-slip strip; 34, placement rack; 341, first connecting part; 342, second connecting part; 343, handle part; 344, V-groove; 35, film roller; 36, ground film cylinder; 37, film pressing wheel; 371, film pressing bracket; 372, film pressing roller; 373, pull hole. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Example: like Figures 1-2 As shown, an anti-slip film-laying device for a rice direct seeding machine with full mulching includes support plates 31 rotatably connected to both sides of the machine frame via pivot pins at their front ends. The support plates 31 can rotate freely around the pivot pins, allowing the entire film-laying device to float up and down, providing high flexibility. Between the two support plates 31, a fixed beam 32, a roller 33, and a placement frame 34 are sequentially arranged. The fixed beam 32 ensures that the two support plates 31 form a unified structure that rotates synchronously around an axis. The roller 33 is rotatably mounted on the support plates 31 via bearings. A film roller 35 is mounted on the placement frame 34, and a film cylinder 36 is fitted onto the film roller 35. The film on the film cylinder 36 passes over the roller 33 from above and then is guided backward from below the roller 33 to below the seeding wheel of the direct seeding machine. The surface of the roller 33 is evenly provided with several anti-slip strips 331 along its circumference. The anti-slip strips 331 are made of foamed rubber.

[0019] The film roller 35 and the drum 33 move in the same direction as the dry direct seeder and press the mulch film forward. This ensures that the rotational linear speed of the drum 33 is the same as the walking speed of the dry direct seeder, preventing dragging and allowing for a certain longitudinal margin when laying the mulch film. This ensures that the mulch film is laid flat and prevents issues such as film dragging, film breakage, or inward rolling. This avoids misalignment between the film holes and the seed holes, achieving full coverage sowing with mulch film and effectively preventing weed infestation and severe moisture loss.

[0020] The anti-slip strips 331 protect the roller 33 from wear and corrosion, increase the friction between the roller 33 and the ground and the mulch film, and reduce excessive tension of the mulch film caused by the roller 33 sliding. This reduces mulch film slippage. Simultaneously, due to the sudden action of the anti-slip strips 331, the circumference of the mulch film around the roller 33 is greater than the circumference of the roller 33, increasing the mulch film allowance and offsetting excessive tension. Therefore, the mulch film laid by this invention is flat, does not drag, does not break, and has appropriate edge tightness.

[0021] The support plate 31 is provided with a plurality of positioning holes 312 for mounting the placement frame 34. The position of the placement frame 34 is adjusted by different positioning holes 312, thereby adjusting the gap between the film roller 35 and the roller 33.

[0022] A sliding sleeve is installed on the film roller 35 to ensure the stability and reliability of the mulch film during operation.

[0023] The placement rack 34 includes a first connecting part 341, a second connecting part 342, and a handle part 343. A V-groove 344 is formed between the first connecting part 341 and the second connecting part 342 for placing the film roller 35. The front end of the first connecting part 341 is rotatably connected to the support plate 31 by a pivot pin, and the rear end of the second connecting part 342 is fixedly connected to the support plate 31 by a movable pin. When placing the film roller 35, the movable pin is pulled out, the placement rack 34 is lowered, the film roller 35 is placed in the V-groove 344, and then the rack is reset and the movable pin is inserted to fix the placement rack 34.

[0024] The front end of the support plate 31 extends away from the film roller 35 to form a drop limiting rod 311, which is used to control the limited drop of the film laying device. The drop limiting rod 311 is provided with a plurality of linearly arranged mounting holes 313, which can adjust the position of the anti-slip film laying device.

[0025] A pressure roller 37 is provided on the support plate 31 behind the film roller 35. The pressure roller 37 includes a pressure bracket 371 connected to the support plate 31 by a shaft pin. A pressure roller 372 is rotatably connected to the pressure bracket 371. A tension spring (not shown in the figure) is provided between the pressure bracket 371 and the support plate 31. The pressure roller 37 can rotate around the shaft pin and float up and down. The tension spring causes the roller of the pressure roller 37 to exert a certain pressure on the ground, thereby pressing down the mulch film and preventing it from moving. The pressure bracket 371 has multiple pull holes 373 for connecting the tension spring, so that the pressure of the pressure roller 37 on the ground can be adjusted by connecting the tension spring to different pull holes 373 or adjusting the spring force.

[0026] The parts of this utility model not described in detail are existing technologies.

Claims

1. An anti-slip film-laying device for a rice full-film direct seeding machine, characterized in that: The machine includes a support plate (31) that is rotatably connected to both sides of the dry direct seeding machine frame. Between the two support plates (31), there is a fixed beam (32), a roller (33) and a placement frame (34) in sequence. The roller (33) is rotatably mounted on the support plate (31) through a bearing. The surface of the roller (33) is evenly provided with several anti-slip strips (331) along the circumferential direction. The placement frame (34) is provided with a film roller (35). The film roller (35) is fitted with a mulch film tube (36). The mulch film on the mulch film tube (36) passes over the roller (33) from above and then is guided from below the roller (33) to the bottom of the sowing wheel of the dry direct seeding machine.

2. The anti-slip film-laying device for a rice full-coverage dry direct seeding machine according to claim 1, characterized in that: The support plate (31) is provided with a plurality of positioning holes (312) for mounting the mounting frame (34).

3. The anti-slip film-laying device for a rice full-coverage dry direct seeding machine according to claim 1, characterized in that: The placement rack (34) includes a first connecting part (341), a second connecting part (342) and a handle part (343). A V-groove (344) for placing the film roller (35) is formed between the first connecting part (341) and the second connecting part (342). The front end of the first connecting part (341) is rotatably connected to the support plate (31) by a shaft pin, and the rear end of the second connecting part (342) is fixedly connected to the support plate (31) by a movable pin.

4. The anti-slip film-laying device for a rice full-coverage dry direct seeding machine according to claim 1, characterized in that: The front end of the support plate (31) extends away from the film roller (35) to form a drop limit rod (311), and the drop limit rod (311) is provided with a plurality of linearly arranged mounting holes (313).

5. The anti-slip film-laying device for a rice full-coverage dry direct seeding machine according to claim 1, characterized in that: The support plate (31) is provided with a pressing wheel (37) on the rear side of the film roller (35). The pressing wheel (37) includes a pressing bracket (371) connected to the support plate (31) by a shaft pin. A pressing roller (372) is rotatably connected to the pressing bracket (371). A tension spring is provided between the pressing bracket (371) and the support plate (31).

6. The anti-slip film-laying device for a rice full-coverage dry direct seeding machine according to claim 5, characterized in that: The pressure plate support (371) is provided with a plurality of pull holes (373) for connecting tension springs.

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