A mulching film compacting and cutting mechanism for a combined cultivator

Abstract

This invention discloses a film compaction and cutting mechanism for a combined tillage machine, relating to the field of seeding machinery technology. It includes a suspended frame and a film compaction and cutting device. The suspended frame is a foldable frame, and the film compaction and cutting device is located between the film installation roller and the seeder. The film compaction and cutting device includes a film pressing and cutting linkage mechanism, a film compaction roller, and film cutting claws. The film pressing and cutting linkage mechanism has a symmetrical structure, including a crossbeam, a left-side linkage structure, and a right-side linkage structure. The left-side and right-side linkage structures are identical, including a longitudinal beam, a follower connecting rod for the film compaction roller, a driven connecting rod for the film cutting claw, and a cutting claw control linkage. The cutting claw control linkage includes a control rod and a cutting claw connecting rod, with the upper end of the control rod hinged to the upper end of the cutting claw connecting rod. This mechanism can compact the film and automatically cut it, eliminating manual operation and improving the quality of film covering and the degree of automation in the operation.

Description

Technical Field

[0001] This invention relates to the field of seeding machinery technology. Background Technology

[0002] Modern large-scale agricultural planting generally adopts integrated tillage machinery that combines rotary tillage, ridging, mulching, and sowing, completing multiple field operations in one go and effectively improving farming efficiency. Currently, similar integrated tillage equipment on the market generally suffers from insufficient film adhesion during mulching, with the film easily becoming partially suspended or loosely compacted. This not only weakens the soil's heat retention, water retention, and moisture retention functions but also easily promotes weed growth. In windy weather, the film is easily lifted and damaged, seriously affecting the crop growth environment. Furthermore, traditional machinery cannot automatically cut the film; after each plot of work, workers must manually cut the film. Manual operation not only increases labor costs and working time but also makes it difficult to ensure the neatness of the cuts, resulting in low overall mulching quality and a significant shortcoming in the level of automation in tillage equipment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a film compaction and cutting mechanism for a combined tillage machine. It solves the problems of film suspension and inadequate compaction leading to failure of heat preservation and moisture retention, weed growth, and film being blown off by strong winds. At the same time, it realizes automatic cutting of film, eliminates manual operation, and improves the quality of film covering and the degree of automation of operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A film compaction and cutting mechanism for a combined tillage machine includes a suspended frame and a film compaction and cutting device; The suspended frame is a foldable frame, which includes a front frame, a rear frame and a piston actuator. The front frame and the rear frame are hinged together. A piston actuator is provided between the front frame and the rear frame for folding, raising and lowering the rear frame. The mulch film installation roller is installed on the front frame and the seeder is installed on the rear frame. A film compaction and cutting device is provided between the film installation roller and the seeder. The film compaction and cutting device includes a film pressing and cutting linkage mechanism, a film compaction roller and a film cutting claw. The plastic film pressing and cutting linkage mechanism is a symmetrical structure, which includes a crossbeam, a left linkage structure and a right linkage structure; The middle part of the crossbeam is fixedly connected to the front frame; The left-side linkage structure and the right-side linkage structure are identical in structure, including a longitudinal beam, a follower connecting rod for the mulch film compaction roller, a driven connecting rod for the mulch film cutting claw, and a control connecting rod for the cutting claw. The upper end of the follower connecting rod of the plastic film compaction roller is rotatably connected to the front end of the longitudinal beam, and the upper end of the follower connecting rod of the plastic film cutting claw is rotatably connected to the rear end of the longitudinal beam. The cutting claw control linkage includes a control rod and a cutting claw connecting rod. The upper end of the control rod is hinged to the upper end of the cutting claw connecting rod. The control rod is rotatably connected to the follower connecting rod of the mulch film compaction roller and the driven connecting rod of the mulch film cutting claw through a rotating shaft. The lower end of the follower connecting rod of the mulch compaction roller in the left linkage structure is rotatably connected to the left end of the mulch compaction roller; the lower end of the follower connecting rod of the mulch compaction roller in the right linkage structure is rotatably connected to the right end of the mulch compaction roller; the lower end of the driven connecting rod of the mulch cutting claw in the left linkage structure is rotatably connected to the upper left end of the mulch cutting claw; the lower end of the driven connecting rod of the mulch cutting claw in the right linkage structure is rotatably connected to the upper right end of the mulch cutting claw; the lower end of the cutting claw connecting rod in the left linkage structure is rotatably connected to the lower left end of the mulch cutting claw; and the lower end of the cutting claw connecting rod in the right linkage structure is rotatably connected to the lower right end of the mulch cutting claw.

[0005] The invention is further improved in that: The mulch film compaction and cutting device is also equipped with a pair of mulch film furrow compaction wheels. The pair of mulch film furrow compaction wheels are rotatably connected to the left end and the right end of the crossbeam respectively through compaction wheel brackets, so that the mulch film laid in the furrow is compacted under its own weight.

[0006] A drip irrigation tape axle disc is provided at the upper end of the front frame, which is used to insert the core hole of the whole roll of drip irrigation tape to load the mulch film and transport the drip irrigation tape along the furrow.

[0007] The beneficial effects of adopting the above technical solution are as follows: 1. This invention adds a mulch film compaction and cutting device, which uses the hydraulic lifting of the frame to drive the linkage mechanism to operate synchronously. During the operation, the mulch film is automatically compacted and adhered to the surface of the ridge, which completely improves the defects of the mulch film being suspended and not firmly compacted, stabilizes the soil's heat preservation and moisture retention performance, inhibits the growth of weeds, and effectively resists common field operation problems such as strong winds blowing off the film and damage.

[0008] 2. The machine can switch between compaction and film cutting modes by relying on its own lifting posture. There is no need to add an additional independent drive control component. The structure is simple and compact. At the same time, it can automatically complete the film cutting process, completely replacing manual film cutting operation, reducing labor input and shortening operation time.

[0009] 3. This linkage pressing and cutting structure is not a conventional method in the industry. The solution is highly original, effectively improves the regularity of mulch film laying and forming, comprehensively optimizes the quality of integrated farming operations, significantly improves the level of equipment automation, and has good field practicality and promotion value. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a combine tiller; Figure 2 yes Figure 1Axonometric drawing; Figure 3 yes Figure 1 A schematic diagram of the structure when the rear rack is folded up; Figure 4 yes Figure 1 Schematic diagram of the structure of the mid-suspension frame; Figure 5 yes Figure 1 Schematic diagram of the rotary tiller and ridging device; Figure 6 yes Figure 5 Schematic diagram of the structure of the ridging device; Figure 7 This is a schematic diagram of the mulch film compaction and cutting device during the sowing operation of a combined tillager; Figure 8 This is a schematic diagram of the structure of the film cutting claw of the film compaction and cutting device when it moves downward to cut the film after the combined tillage machine has completed the sowing operation.

[0011] In the attached diagram: 1. Suspended frame; 1-1. Front frame; 1-2. Rear frame; 1-3. Piston actuator; 2. Rotary tiller blade; 3. Ridge wall scraping and shaping disc; 4. Mulch film installation roller; 5. Seeder; 6. Front soil covering disc; 7. Ridge top smoothing plate; 8. Furrowing plate; 9. Furrow widening plate; 10. Ridge wall smoothing plate; 11. Rear soil covering disc; 12. Mulch film compaction roller; 13. Mulch film cutting claw; 14. Crossbeam; 15. Longitudinal beam; 16. Mulch film compaction roller follower connecting rod; 17. Mulch film cutting claw driven connecting rod; 18. Control rod; 19. Cutting claw connecting rod; 20. Mulch film furrow compaction wheel; 21. Compaction wheel bracket; 22. Drip irrigation tape axle disc. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] For ease of explanation, a combined tiller will be used as an example for detailed description.

[0014] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art, and will not be described in detail here.

[0015] Depend on Figures 1-8 As can be seen from the embodiment shown, this embodiment includes a suspended frame 1, a rotary tiller 2 is provided in front of the suspended frame 1 for rotary tilling to loosen the soil, and at least one set of ridging, film laying and sowing device is provided behind the rotary tiller 2. The ridging and film-laying sowing device includes ridging devices arranged in sequence from front to back, a pair of ridge wall scraping and shaping discs 3, film installation rollers 4, a pair of front covering discs (6), a sower 5, and a pair of rear covering discs (11). The ridging device includes a pair of symmetrically arranged plate-shaped ridging structures and a ridge top smoothing plate 7. The plate-shaped ridging structures are connected from front to back to a furrowing plate 8, a furrow widening plate 9, and a ridge wall smoothing plate 10. The furrowing plate 8 is inclined outward at an angle of less than 30° relative to the left and right symmetry line to reduce the forward resistance in the cultivated land. The furrow widening plate 9 is inclined outward at a larger angle relative to the furrowing plate 8. The ridge wall smoothing plate 10 has an inclined surface adapted to the ridge wall. The pair of furrow widening plates 9 gather the inner cultivated soil opened by the furrowing plate 8 into the space between the pair of ridge wall smoothing plates 10 to form a ridge. The furrow widening plates 9 make the gathered cultivated soil form the ridge wall. The ridge top smoothing plate 7 is horizontally fixed at the upper end of the pair of ridge wall smoothing plates 10 to smooth the top of the ridge. A pair of ridge wall scraping and shaping discs 3 are symmetrically arranged on the left and right, and their installation positions correspond to the two side walls of the ridge created by the ridging device. Each ridge wall scraping and shaping disc 3 is fixed to the frame 1 through its own ridge wall scraping and shaping disc bracket and is rotatably connected to the ridge wall scraping and shaping disc bracket. The pair of ridge wall scraping and shaping discs 3 are tilted outward from front to back to scrape and shape the two side walls of the ridge created by the ridging device, so that the scraped loose soil falls into the furrows on both sides of the ridge. The mulch film installation roller 4 is adapted to the mulch film core hole and is used to insert into the core hole of the whole roll of mulch film to load the mulch film. Its installation position can cover the mulch film on the ridge. The seeding port of the seeder 5 corresponds to the middle of the ridge created by the ridging device, so as to sow the seeds to the middle of the ridge; A pair of front covering discs 6 are located in front of the seeder 5, and a pair of rear covering discs 11 are located behind the seeder 5. Each front covering disc 6 is fixed to the frame 1 by its own front covering disc bracket and is rotatably connected to the front covering disc bracket. Each rear covering disc 11 is fixed to the frame 1 by its own rear covering disc bracket and is rotatably connected to the rear covering disc bracket. The installation positions of the pair of front covering discs 6 and the pair of rear covering discs 11 correspond to the positions of the furrows on both sides of the ridge, and are inclined inward from front to back, so that during the movement, the loose soil scraped into the furrows by the pair of ridge wall scraping and shaping discs 3 is filled onto the mulch film, thereby fixing the mulch film on the ridge. The suspended frame 1 is a foldable frame, comprising a front frame 1-1, a rear frame 1-2, and a piston actuator 1-3. The front frame 1-1 and the rear frame 1-2 are hinged together. The piston actuator 1-3 is located between the front frame 1-1 and the rear frame 1-2 for folding, raising, and lowering the rear frame 1-2. The rotary tiller 2, ridging device, ridge wall scraping and shaping disc 3, and mulch film installation roller 4 are mounted on the front frame 1-1. The seeder 5 and a pair of front covering discs are also included. 6 and a pair of rear soil covering discs 11 are installed on the rear frame 1-2. When the piston actuator 1-3 controls the rear frame 1-2 to fold and lift, the combined tiller is in a flexible and maneuverable state, which can shorten the overall structure of the combined tiller, reduce the turning radius, and facilitate the dragging and transportation of the combined tiller before and after sowing operations, as well as the adjustment of the sowing position before sowing operations. When the piston actuator 1-3 controls the rear frame 1-2 to fold and fall, the combined tiller is in the sowing operation state to carry out sowing operations.

[0016] A film compaction and cutting device is provided between the film installation roller 4 and the seeder 5. The film compaction and cutting device includes a film pressing and cutting linkage mechanism, a film compaction roller 12 and a film cutting claw 13. The plastic film pressing and cutting linkage mechanism is a symmetrical structure, which includes a crossbeam 14, a left linkage structure and a right linkage structure; The middle part of the crossbeam 14 is fixedly connected to the front frame 1-1; The left-side linkage structure and the right-side linkage structure are identical, including a longitudinal beam 15, a follower connecting rod 16 for the mulch film compaction roller, a driven connecting rod 17 for the mulch film cutting claw, and a cutting claw control connecting rod. The upper end of the follower connecting rod 16 of the mulch film compaction roller is rotatably connected to the front end of the longitudinal beam 15, and the upper end of the follower connecting rod 17 of the mulch film cutting claw is rotatably connected to the rear end of the longitudinal beam 15. The cutting claw control linkage includes a control rod 18 and a cutting claw connecting rod 19. The upper end of the control rod 18 is hinged to the upper end of the cutting claw connecting rod 19. The control rod 18 is rotatably connected to the follower connecting rod 16 of the mulch film compaction roller and the driven connecting rod 17 of the mulch film cutting claw through a rotating shaft. The lower end of the follower connecting rod 16 of the left-side linkage structure is rotatably connected to the left end of the mulch compaction roller 12; the lower end of the follower connecting rod 16 of the right-side linkage structure is rotatably connected to the right end of the mulch compaction roller 12; the lower end of the driven connecting rod 17 of the left-side linkage structure is rotatably connected to the upper left end of the mulch cutting claw 13; the lower end of the driven connecting rod 17 of the right-side linkage structure is rotatably connected to the upper right end of the mulch cutting claw 13; the lower end of the cutting claw connecting rod 19 of the left-side linkage structure is rotatably connected to the lower left end of the mulch cutting claw 13; and the lower end of the cutting claw connecting rod 19 of the right-side linkage structure is rotatably connected to the lower right end of the mulch cutting claw 13. When sowing is being carried out, the hydraulic suspension system of the suspended frame 1 controls the front frame 1-1 to fall to the working position. Under its own weight, the mulch film compaction roller 12 falls down to compact the mulch film laid on the ridge. The angle between the longitudinal beam 15 and the mulch film compaction roller follower connecting rod 16 becomes smaller, thereby causing the control rod 18 to drive the mulch film cutting claw to move upward on the follower connecting rod 17. The cutting claw connecting rod 19 drives the mulch film cutting claw 13 to lift backward, so that the mulch film cutting claw 13 moves upward away from the mulch film. After the sowing operation is completed, the hydraulic suspension system of the suspended frame 1 controls the front frame 1-1 to rise. Under its own gravity, the mulch film compaction roller 12 falls freely. The angle between the longitudinal beam 15 and the mulch film compaction roller follower connecting rod 16 becomes larger, thereby causing the control rod 18 to drive the mulch film cutting claw to descend along the follower connecting rod 17. The cutting claw connecting rod 19 drives the mulch film cutting claw 13 to fall forward, so that the mulch film cutting claw 13 moves downward to cut the mulch film.

[0017] The mulch film compaction and cutting device is also equipped with a pair of mulch film furrow compaction wheels 20. The pair of mulch film furrow compaction wheels 20 are rotatably connected to the left end and the right end of the crossbeam 14 respectively through compaction wheel brackets 21. The installation positions of the pair of mulch film furrow compaction wheels 20 correspond to the furrow positions on both sides of the ridge created by the ridging device, so that the mulch film laid in the furrow is compacted under its own weight.

[0018] A drip irrigation tape axle disc 22 is provided at the upper end of the front frame 1-1, which is used to insert the core hole of the whole roll of drip irrigation tape to load the mulch film and transport the drip irrigation tape along the furrow.

[0019] The combined tillage machine is equipped with two sets of ridging, film-laying and sowing devices.

Claims

1. A mulch compacting and severing mechanism for a combined cultivator, characterised in that: Includes a suspended frame (1) and a plastic film compaction and cutting device; The suspended frame (1) is a foldable frame, which includes a front frame (1-1), a rear frame (1-2) and a piston actuator (1-3); the front frame (1-1) and the rear frame (1-2) are hinged together, and a piston actuator (1-3) is provided between the front frame (1-1) and the rear frame (1-2) for folding, raising and lowering the rear frame (1-2); the mulch film installation roller (4) is installed on the front frame (1-1), and the seeder (5) is installed on the rear frame (1-2); A mulch film compaction and cutting device is provided between the mulch film installation roller (4) and the seeder (5). The mulch film compaction and cutting device includes a mulch film pressing and cutting linkage mechanism, a mulch film compaction roller (12), and a mulch film cutting claw (13). The plastic film pressing and cutting linkage mechanism is a left-right symmetrical structure, which includes a crossbeam (14), a left linkage structure and a right linkage structure; The middle part of the crossbeam (14) is fixedly connected to the front frame (1-1); The left linkage structure and the right linkage structure have the same structure, including a longitudinal beam (15), a follower connecting rod (16) for the mulch film compaction roller, a driven connecting rod (17) for the mulch film cutting claw, and a cutting claw control connecting rod. The upper end of the follower connecting rod (16) of the mulch film compaction roller is rotatably connected to the front end of the longitudinal beam (15), and the upper end of the follower connecting rod (17) of the mulch film cutting claw is rotatably connected to the rear end of the longitudinal beam (15). The cutting claw control linkage includes a control rod (18) and a cutting claw connecting rod (19). The upper end of the control rod (18) is hinged to the upper end of the cutting claw connecting rod (19). The control rod (18) is rotatably connected to the mulch film compaction roller follower connecting rod (16) and the mulch film cutting claw driven connecting rod (17) through a rotating shaft. The lower end of the follower connecting rod (16) of the mulch compaction roller in the left linkage structure is rotatably connected to the left end of the mulch compaction roller (12); the lower end of the follower connecting rod (16) of the mulch compaction roller in the right linkage structure is rotatably connected to the right end of the mulch compaction roller (12); the lower end of the driven connecting rod (17) of the mulch cutting claw in the left linkage structure is rotatably connected to the upper left end of the mulch cutting claw (13); the lower end of the driven connecting rod (17) of the mulch cutting claw in the right linkage structure is rotatably connected to the upper right end of the mulch cutting claw (13); the lower end of the cutting claw connecting rod (19) of the left linkage structure is rotatably connected to the lower left end of the mulch cutting claw (13); and the lower end of the cutting claw connecting rod (19) of the right linkage structure is rotatably connected to the lower right end of the mulch cutting claw (13).

2. The mulching film compacting and cutting mechanism for a combined cultivator according to claim 1, characterized in that: The mulch film compaction and cutting device is also equipped with a pair of mulch film furrow compaction wheels (20). The pair of mulch film furrow compaction wheels (20) are rotatably connected to the left end and the right end of the crossbeam (14) respectively through compaction wheel brackets (21) so as to compact the mulch film laid in the furrow under the weight of the mulch film furrow compaction wheels (20).

3. The mulch compacting and cutting mechanism for a combined cultivator according to claim 1 or 2, characterized in that: A drip irrigation tape axle disc (22) is provided at the upper end of the front frame (1-1) for inserting the core hole of the whole roll of drip irrigation tape to load the mulch film and transport the drip irrigation tape along the furrow.

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