Film mulching mechanism of agricultural planting film mulching machine
By designing a mulching mechanism for agricultural planting mulch film machines, including a frame, mounting rods, traveling wheels, first rollers, second rollers, and a linkage mechanism, the problems of jamming and uneven stretching in mulch film machines have been solved. This has enabled smooth mulch film coverage and seed sowing, improving mulching quality and work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI NUOJIN RETURN AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing agricultural mulching machines are prone to jamming and uneven stretching, which affects mulching quality and work efficiency.
A film covering mechanism was designed, comprising a frame, mounting rods, traveling wheels, a first roller, a second roller, and a linkage mechanism. The stable laying of the mulch film is achieved through the linkage between the traveling wheels, the first roller, and the second roller, and the uniform laying of the mulch film and seed sowing are achieved through the cone and filling port inside the second roller.
It achieves a smooth mulch film coverage, avoiding wrinkles and uneven stretching, improving the quality of film covering and work efficiency. The sharp end of the cone compacts and trims the ground, enhancing the quality of mulch film laying.
Smart Images

Figure CN224111801U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural planting equipment technology, specifically to a film covering mechanism for an agricultural planting mulch film machine. Background Technology
[0002] A mulching machine for agricultural planting is a mechanical device used in agricultural production to cover the soil surface, providing functions such as heat preservation, moisture retention, weed suppression, and improved soil fertility. Mulching can significantly increase crop growth rate and yield. Chinese Patent (Announcement No. CN208129032U) discloses a mulching device and machine, which includes a mulching mechanism comprising a first connecting rod, a second connecting rod, and a rolling roller detachably connected to the first and second connecting rods. The rolling roller is rotatably connected to the first and second connecting rods. In use, the mulch film is placed on the rolling roller, and the roller's rotation lays the film flat on the ground. However, the mulching quality is difficult to guarantee, easily resulting in uneven mulch film laying and insufficient soil compaction. Poor linkage between the rollers leads to jamming and uneven stretching during mulch film laying, affecting mulching quality and work efficiency. Therefore, this utility model proposes a mulching mechanism for agricultural planting to improve the above problems. Utility Model Content
[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the film covering mechanism of the agricultural planting mulch film machine in the prior art, which is prone to jamming and uneven stretching, and thus provide a film covering mechanism for the agricultural planting mulch film machine.
[0004] To address the aforementioned problems, this utility model provides a film-laying mechanism for an agricultural planting mulch film machine, comprising:
[0005] The frame has a pair of mounting rods on its two inner sides near one end, and a roll of mulch film is detachably connected between the pair of mounting rods. A pair of wheels are provided at one end of the frame near the mounting rods.
[0006] The first roller is positioned between the frames directly below the mounting rod;
[0007] The second roller is located at the other end of the frame;
[0008] The linkage mechanism is respectively set between the walking wheel and the first roller, and between the first roller and the second roller to realize the linkage between the first roller, the second roller and the walking wheel.
[0009] Preferably, a pair of connecting plates are provided at one end of the frame, and a first rotating rod is provided at the end of the connecting plate away from the frame. The first rotating rod is rotatably connected to the connecting plate, and the first rotating rod is also connected to and passes through the walking wheel. A rotating disk is also provided at the end of the first rotating rod away from the connecting plate.
[0010] Preferably, the mounting rod is provided with a threaded ring, and the frame is provided with a corresponding threaded hole that matches the threaded ring of the mounting rod, and the mounting rod and the frame are screwed together.
[0011] Preferably, mounting plates are respectively provided near the mounting rod, one end of the mounting plate is connected to the frame, and the other end extends to the ground. A first rotating shaft is provided between the other ends of a pair of mounting plates. The two ends of the first rotating shaft are respectively rotatably connected to the mounting plates, and one end of the first rotating shaft is connected to a drive mechanism.
[0012] The first roller is provided on the first rotating shaft, and the two ends of the first roller are respectively provided with a first rotating groove adapted to the rotating disk; a pair of second rotating grooves are also provided between the pair of first rotating grooves.
[0013] Preferably, a pair of fixing plates are provided at one end of the frame away from the mounting rod, one end of the pair of fixing plates extends to the ground and a second rotating shaft is provided between them, the two ends of the second rotating shaft are respectively rotatably connected to the fixing plates, the second roller is provided on the second rotating shaft, and the second roller is provided with a third rotating groove corresponding to the second rotating groove.
[0014] Preferably, the second roller has a hollow structure, and multiple sets of cones are evenly arranged on the outer surface of the second roller. The sharp end of the cone is provided with a connecting hole to connect to the interior of the second roller. The second roller is also provided with a filling port, and a filling port cover is provided on the filling port.
[0015] The pointed end of the cone on the second roller is aligned with the outer surface of the first roller and the outer surface of the traveling wheel.
[0016] Preferably, the linkage mechanism includes a pair of first belt rings and a pair of second belt rings, the first belt rings being sleeved between the rotating disk and the first rotating groove, and the second belt rings being sleeved between the second rotating groove and the third rotating groove.
[0017] Preferably, an extension plate is provided on both sides of the frame between the first roller and the second roller, and one end of the extension plate extends downward and is connected to a soil covering shovel.
[0018] The film-covering mechanism of the agricultural planting mulch film machine provided by this utility model has the following beneficial effects:
[0019] 1. This utility model stretches one end of the mulch film around the bottom of the first roller and then towards the second roller, and covers its end face with soil to fix it. Then, through the linkage mechanism between the traveling wheel, the first roller and the second roller, which is composed of the first belt ring and the second belt ring, synchronous rotation is achieved. When the mulch film machine moves in the farmland, the rotation of the traveling wheel can be quickly transmitted to the first roller and the second roller, so that the mulch film can be continuously and stably pulled out from the mulch film roll and laid on the ground. The first roller and the second roller play a good guiding and stretching role for the mulch film, ensuring that the mulch film is evenly stressed during the laying process, avoiding wrinkles, twisting or overstretching, so that the mulch film can be flatly covered on the farmland surface.
[0020] 2. This utility model also allows for the addition of seeds through the filling port to the second roller during actual operation, increasing the weight of the second roller and enabling the mulch film to better adhere to the ground during laying. Simultaneously, as the entire device moves, it facilitates the even sowing of seeds into the soil covering the mulch film. Furthermore, the pointed end of the cone is aligned with the outer surface of the first roller and the outer surface of the traveling wheel, allowing the cone to compact and adjust the ground to a certain extent during the mechanism's movement, thus improving the quality of the mulch film laying. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the assembly of this utility model;
[0022] Figure 2 This is a top view of the structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the installation of the second rotating groove structure of this utility model.
[0024] The reference numerals in the attached figures are as follows:
[0025] 1. Frame; 2. Mounting rod; 3. First roller; 4. Second roller; 6. First rotating rod; 7. Traveling wheel; 8. First rotating shaft; 9. Rotating disc; 10. First rotating groove; 11. Second rotating shaft; 12. Second rotating groove; 13. Third rotating groove; 14. Conical cylinder; 15. Filler inlet; 16. First belt ring; 17. Second belt ring; 18. Extension plate. Detailed Implementation
[0026] like Figure 1-3 As shown, this utility model provides a film-covering mechanism for an agricultural planting mulch film machine, which includes:
[0027] A frame 1 has a pair of mounting rods 2 on each of its two inner sides near one end. A roll of mulch film is detachably connected between the mounting rods 2. A pair of traveling wheels 7 are located at one end of the frame 1 near the mounting rods 2. A first roller 3 is located between the mounting rods 2 and the frame 1. A second roller 4 is located at the other end of the frame 1. A linkage mechanism is provided between the traveling wheels 7 and the first roller 3, and between the first roller 3 and the second roller 4, to achieve linkage between the first roller 3, the second roller 4, and the traveling wheels. Figure 1-3 As shown, the frame 1 serves as the supporting framework for the entire mulching mechanism. A pair of mounting rods 2 are used to install the mulch film rolls. The traveling wheels 7 facilitate the movement of the entire mechanism in the farmland. By wrapping one end of the mulch film around the bottom of the first roller 3 and then stretching it towards the second roller 4, the end face is covered with soil to fix it. Then, through the linkage mechanism consisting of the first belt ring 16 and the second belt ring 17 between the traveling wheels 7, the first roller 3, and the second roller 4, synchronous rotation is achieved. When the mulching machine moves in the farmland, the rotation of the traveling wheels 7 can be quickly transmitted to the first roller 3 and the second roller 4, so that the mulch film can be continuously and stably pulled out from the mulch film roll and laid on the ground. The first roller 3 and the second roller 4 play a good guiding and stretching role for the mulch film, ensuring that the mulch film is evenly stressed during the laying process and avoiding wrinkles, twisting, or excessive stretching, so that the mulch film can be flatly covered on the farmland surface.
[0028] In some embodiments, a pair of connecting plates are provided at one end of the frame 1, and a first rotating rod 6 is provided at the end of the connecting plate away from the frame 1. The first rotating rod 6 is rotatably connected to the connecting plate, and the first rotating rod 6 is also connected to and passes through the traveling wheel 7. A rotating disk 9 is also provided at the end of the first rotating rod 6 away from the connecting plate. Figure 1-3 As shown, the first rotating rod 6 is rotatably connected to the connecting plate through a bearing, so that the rotating disk 9 and the traveling wheel 7 are on the same first rotating rod 6, which facilitates transmission. The rotating disk 9 plays a key transmission role in the subsequent linkage mechanism.
[0029] In some embodiments, the mounting rod 2 is provided with a threaded ring, and the frame 1 is provided with a corresponding threaded hole that matches the threaded ring of the mounting rod 2, and the mounting rod 2 and the frame 1 are screwed together. For example... Figure 1-3 As shown, the installation rod 2 and the frame 1 are detachably connected by screws, which makes it easy to replace the plastic film roll. Simply loosen the installation rod 2 to remove the used plastic film roll and replace it with a new one, which greatly improves work efficiency.
[0030] In some embodiments, mounting plates are respectively provided near the mounting rod 2. One end of each mounting plate is connected to the frame 1, and the other end extends to the ground. A first rotating shaft 8 is provided between the other ends of the pair of mounting plates. Both ends of the first rotating shaft 8 are rotatably connected to the mounting plates, and one end of the first rotating shaft 8 is connected to a drive mechanism. A first roller 3 is provided on the first rotating shaft 8, and both ends of the first roller 3 are respectively provided with a first rotating groove 10 adapted to the rotating disk 9. A pair of second rotating grooves 12 are also provided between the pair of first rotating grooves 10. Figure 1-3 As shown, the connection between the mounting plate and the frame 1 can be by bonding or bolting. The two ends of the first rotating shaft 8 are rotatably connected to the mounting plate through bearings. One end of the first rotating shaft 8 is connected to a drive mechanism (such as a small motor, not shown in detail in the figure). The drive mechanism provides power for the rotation of the first roller 3. The two ends of the first roller 3 are respectively provided with a first rotating groove 10 that is adapted to the rotating disk 9. A pair of second rotating grooves 12 are also provided between the pair of first rotating grooves 10. These rotating grooves cooperate with the belt ring in the linkage mechanism to realize the transmission of power. The connection between the first roller 3 and the first rotating shaft 8 can be by bonding, snapping or bolting.
[0031] In some embodiments, a pair of fixing plates are provided at the end of the frame 1 away from the mounting rod 2. One end of the pair of fixing plates extends towards the ground and a second rotating shaft 11 is provided between them. The two ends of the second rotating shaft 11 are respectively rotatably connected to the fixing plates. A second roller 4 is provided on the second rotating shaft 11, and the second roller 4 is provided with a third rotating groove 13 corresponding to the first two rotating grooves. For example... Figure 1-3 As shown, the connection between the frame 1 and the fixed plate can be by bonding or bolting. The two ends of the second rotating shaft 11 are rotatably connected to the fixed plate by bearings. The second roller 4 is provided with a third rotating groove 13 corresponding to the second rotating groove, which is used to cooperate with the belt ring in the linkage mechanism to realize the linkage with the first roller 3.
[0032] In some embodiments, the second roller 4 has a hollow structure, and multiple sets of cones 14 are evenly arranged on the outer surface of the second roller 4. The sharp ends of the cones 14 are provided with connecting holes to connect to the interior of the second roller 4. The second roller 4 is also provided with a filling port 15, and the filling port 15 is provided with a filling port 15 cover. The sharp ends of the cones 14 on the second roller 4 are on the same straight line as the outer surface of the first roller 3 and the outer surface of the traveling wheel 7. Figure 1-3As shown, the second roller 4 has a hollow structure, and its outer surface is evenly provided with multiple sets of cones 14. The sharp end of the cone 14 is provided with a connecting hole to connect to the inside of the second roller 4. The second roller 4 is also provided with a filling port 15, and the filling port 15 is provided with a filling port 15 cover. The connection method can be threaded connection or snap-fit. In actual operation, some seeds can be filled into the second roller 4 through the filling port 15 to increase the weight of the second roller 4, so that the mulch film can better fit the ground during the laying process. At the same time, as the whole device moves, it is easy to evenly sow the seeds into the soil covering the mulch film. Meanwhile, the sharp end of the cone 14 is on the same straight line as the outer surface of the first roller 3 and the outer surface of the traveling wheel 7. In this way, during the movement of the mechanism, the cone 14 can compact and adjust the ground to a certain extent, which helps to improve the laying quality of the mulch film.
[0033] In some embodiments, the linkage mechanism includes a pair of first belt rings 16 and a pair of second belt rings 17, the first belt rings 16 being sleeved between the rotating disk 9 and the first rotating groove 10, and the second belt rings 17 being sleeved between the second rotating groove 12 and the third rotating groove 13. For example... Figure 1-3 As shown, the linkage mechanism includes a pair of first belt rings 16 and a pair of second belt rings 17. The first belt rings 16 are sleeved between the rotating disk 9 and the first rotating groove 10. When the traveling wheel 7 rotates, the rotating disk 9 rotates accordingly, driving the first roller 3 to rotate through the first belt rings 16. The second belt rings 17 are sleeved between the second rotating groove 12 and the third rotating groove 13, thereby realizing the linkage between the first roller 3 and the second roller 4. In this way, during the entire movement of the mechanism, the rotation of the traveling wheel 7 can synchronously drive the first roller 3 and the second roller 4 to rotate through the linkage mechanism, ensuring that the mulch film can be stretched and laid evenly during the laying process, avoiding the phenomenon of jamming and uneven stretching.
[0034] In some embodiments, extension plates 18 are also provided on both sides of the frame 1 between the first roller 3 and the second roller 4, one end of the extension plate 18 extending downward and connected to a soil-covering shovel. For example... Figure 1-3 As shown, one end of the extension plate 18 extends downward and is connected to a soil covering shovel. The soil covering shovel is commercially available. After the mulch film is laid, the soil covering shovel can scoop up the soil on both sides of the mulch film and cover the edge of the mulch film to fix the mulch film, prevent the mulch film from being blown away by the wind, and improve the stability of the mulch film coverage.
[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. A film-covering mechanism for agricultural planting mulch film machines, characterized in that, include: The frame has a pair of mounting rods on its two inner sides near one end, and a roll of mulch film is detachably connected between the pair of mounting rods. A pair of wheels are provided at one end of the frame near the mounting rods. The first roller is positioned between the frames directly below the mounting rod; The second roller is located at the other end of the frame; The linkage mechanism is respectively set between the walking wheel and the first roller, and between the first roller and the second roller to realize the linkage between the first roller, the second roller and the walking wheel.
2. The mulching mechanism of the agricultural planting mulch film machine according to claim 1, characterized in that: A pair of connecting plates are provided at one end of the frame. A first rotating rod is provided at the end of the connecting plate away from the frame. The first rotating rod is rotatably connected to the connecting plate. The first rotating rod is also connected to and passes through the walking wheel. A rotating disk is also provided at the end of the first rotating rod away from the connecting plate.
3. The film-covering mechanism of the agricultural planting mulch film machine according to claim 1, characterized in that: The mounting rod is provided with a threaded ring, and the frame is provided with a corresponding threaded hole that matches the threaded ring of the mounting rod. The mounting rod and the frame are screwed together.
4. The film-covering mechanism of the agricultural planting film-covering machine according to claim 2, characterized in that: Mounting plates are respectively provided near the mounting rod. One end of the mounting plate is connected to the frame, and the other end extends to the ground. A first rotating shaft is provided between the other ends of the pair of mounting plates. The two ends of the first rotating shaft are respectively rotatably connected to the mounting plate, and one end of the first rotating shaft is connected to the drive mechanism. The first roller is provided on the first rotating shaft, and the two ends of the first roller are respectively provided with a first rotating groove adapted to the rotating disk; a pair of second rotating grooves are also provided between the pair of first rotating grooves.
5. The film-covering mechanism of the agricultural planting film-covering machine according to claim 4, characterized in that: A pair of fixing plates are provided at one end of the frame away from the mounting rod. One end of the pair of fixing plates extends to the ground and a second rotating shaft is provided between them. The two ends of the second rotating shaft are respectively rotatably connected to the fixing plates. The second roller is provided on the second rotating shaft, and the second roller is provided with a third rotating groove corresponding to the second rotating groove.
6. The film-covering mechanism of the agricultural planting mulch film machine according to claim 5, characterized in that: The second roller has a hollow structure inside. Multiple sets of cones are evenly arranged on the outer surface of the second roller. The sharp end of the cone is provided with a connecting hole to connect to the inside of the second roller. The second roller is also provided with a filling port and a filling port cover. The pointed end of the cone on the second roller is aligned with the outer surface of the first roller and the outer surface of the traveling wheel.
7. The film-covering mechanism of the agricultural planting mulch film machine according to claim 5, characterized in that: The linkage mechanism includes a pair of first belt rings and a pair of second belt rings. The first belt rings are sleeved between the rotating disk and the first rotating groove, and the second belt rings are sleeved between the second rotating groove and the third rotating groove.
8. The mulching mechanism of the agricultural planting mulch film machine according to claim 1, characterized in that: An extension plate is also provided on both sides of the frame between the first roller and the second roller, and one end of the extension plate extends downward and is connected to a soil covering shovel.
Citation Information
Patent Citations
Plastic mulching device and plastic mulching machine
CN208129032U