Agricultural film covering device

Abstract

This invention belongs to the field of agricultural mulch film covering technology and discloses an agricultural mulch film covering device, including a main shaft. Rectangular sleeves are fixedly fitted on both sides of the main shaft. A rectangular plate is fixedly connected to the lower end of the rectangular sleeve. A pressure wheel is fixedly connected between the two rectangular plates. A connecting plate is fixedly connected to the left side of the rectangular sleeve, and an adjusting rod is fixedly fitted to the left end of the connecting plate. This invention moves a T-shaped shaft closer to an electromagnetic ring, compressing a spring. This causes compressed gas in the air passage and elastic membrane to enter the inner side of the rotating sleeve, preventing the elastic membrane from expanding. When the permanent magnet contacts the electromagnetic ring, the inner end of the T-shaped shaft is flush with the inner wall of the feeding box. The lowest roll of mulch film falls on top of the two arc-shaped plates. Subsequently, the electromagnetic ring is de-energized, and the compression spring pushes the T-shaped shaft back to its original position, entering the paper roller in the middle of the mulch film roll. The expanded elastic membrane then fixes the paper roller, thus completing the rapid installation and replacement of the mulch film roll.

Description

Technical Field

[0001] This invention belongs to the field of agricultural mulch film covering technology, specifically an agricultural mulch film covering device. Background Technology

[0002] Mulch film, also known as ground cover film, is usually transparent or black PE film, but also comes in green and silver. It is used to cover the ground to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth. Mulch film may look thin, but its effects are quite significant. It can not only increase soil temperature, retain water, retain soil, and retain fertilizer to improve fertilizer efficiency, but also has multiple functions such as weed control, pest and disease prevention, drought and flood resistance, salt suppression and seedling protection, improvement of near-ground light and heat conditions, and hygiene and cleanliness of products.

[0003] Existing mulch film mulching machines primarily rely on mechanized power, requiring skilled operators to complete the operation. The installation of the mulch film rolls in current agricultural mulch film mulching devices is cumbersome, and disassembly is inconvenient for film replacement, increasing operator time, reducing efficiency, and diminishing the device's practicality. Secondly, during the laying process, the diameter of the mulch film roll gradually decreases, resulting in less tension between the rotating roll and the pressing rollers, leading to loose mulch film, damage, and compromised insulation and moisture retention. Furthermore, with rural population decline and a shrinking labor force, there is a need to develop a simple, easy-to-operate mulch film mulching machine that reduces the burden on rural laborers. Summary of the Invention

[0004] The purpose of this invention is to provide an agricultural mulch film covering device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an agricultural mulch film covering device, comprising a main shaft, rectangular sleeves fixedly fitted on both sides of the main shaft, a rectangular plate fixedly connected to the lower end of the rectangular sleeves, a pressing wheel fixedly connected between the two rectangular plates, a connecting plate fixedly connected to the left side of the rectangular sleeves, an adjusting rod fixedly fitted to the left end of the connecting plate, a soil sealing wheel rotatably mounted on the inner side of the adjusting rod, a connecting frame fixedly connected between the two connecting plates, two traction frames fixedly connected to the right side of the main shaft, a material box fixedly connected to the right end of the traction frame, and the material box... A take-up roller shell is fixedly connected to the bottom of the material box. A V-shaped plate is fixedly connected to the bottom of the take-up roller shell. Two arc-shaped plates are arranged above the take-up roller shell. A drive motor is fixedly installed on the front side of the material box. A drive wheel is fixedly connected to the output shaft end of the drive motor. Clamping mechanisms are provided at both the front and rear of the material box. An adjustment mechanism is fixedly connected to the outside of the clamping mechanism. A connecting rod is fixedly connected between the two adjustment mechanisms. An adjustment roller is movably sleeved in the middle of the connecting rod. A driven wheel is fixedly installed on the curved surface of the front clamping mechanism. A transmission belt is connected between the driven wheel and the drive wheel.

[0006] Preferably, the clamping mechanism includes a rotating sleeve, an electromagnetic ring is fixedly connected inside the rotating sleeve, a T-shaped shaft is slidably connected inside the rotating sleeve, an air passage is opened inside the T-shaped shaft, an elastic membrane is fixedly connected to the inner end of the T-shaped shaft, a permanent magnet is fixedly installed on the outer side of the T-shaped shaft, and a compression spring is fixedly connected between the outer side of the T-shaped shaft and the rotating sleeve.

[0007] Preferably, the adjusting mechanism includes a column, a cross cavity is formed in the middle of the column, a sliding block is slidably connected inside the cross cavity, a tension spring is fixedly connected between the sliding block and the column, an oil shell is rotatably connected to the curved surface of the column, a sliding rod is slidably connected to the left side of the oil shell, a return spring is fixedly connected between the right end of the sliding rod and the inner wall of the oil shell, and a connecting block is fixedly connected to the middle of the oil shell.

[0008] Preferably, the connecting frame is fixedly connected to the main shaft and the material box, the two arc-shaped plates are fixedly connected to the material box, and the bottom end of the V-shaped plate has many notches.

[0009] Preferably, the rotating sleeve is rotatably connected to the material box and has good sealing performance, the T-shaped shaft is sleeved with the material box and has good sealing performance, the curved surface of the rotating sleeve is fixedly connected to the middle of the driven wheel, and the permanent magnet is horizontally aligned with the electromagnetic ring.

[0010] Preferably, the column is fixedly connected to the rotating sleeve, the connecting block is fixedly connected to the material box, and the sliding rod is fixedly connected to the connecting rod.

[0011] Preferably, the oil tank is filled with an appropriate amount of hydraulic oil, and the air passage and elastic membrane are filled with compressed gas.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. This invention utilizes an electromagnetic ring energized to generate a magnetic field that attracts a permanent magnet. This magnetic field drives a T-shaped shaft to move closer to the electromagnetic ring, compressing a spring. During the movement of the permanent magnet, the air passage connects with the part of the rotating sleeve near the material box, allowing compressed gas from the air passage and the elastic membrane to enter the inner side of the rotating sleeve. This prevents the elastic membrane from expanding further. When the permanent magnet contacts the electromagnetic ring, the inner end of the T-shaped shaft is flush with the inner wall of the material box, and the bottommost roll of mulch film falls on top of the two arc-shaped plates. Subsequently, the electromagnetic ring is de-energized, and the compression spring pushes the T-shaped shaft back to its original position, entering the paper roller in the middle of the mulch film roll. The expanded elastic membrane then fixes the paper roller, thus completing the rapid installation and replacement of the mulch film roll. This solves the problems of cumbersome installation steps and inconvenient disassembly during replacement, which increases the worker's disassembly and assembly time, reduces efficiency, and diminishes the practicality of the device.

[0014] 2. This invention adjusts the rotation speed of the drive motor according to the remaining amount of mulch film. The less mulch film on the paper roller, the faster the drive motor rotates, ensuring uniform mulch film laying. The increased rotation speed of the driven wheel leads to a faster rotation speed of the column, causing the sliding block to slide outwards from the cross cavity and increasing the tension of the tension spring. This causes the hydraulic oil in the oil tank to push the sliding rod to move and compress the return spring. The connecting rod and adjusting roller follow suit, tightening the mulch film and maintaining consistent tightness between the front and rear mulch film layers. This solves the problem that in existing mulch film laying processes, the diameter of the mulch film roll gradually decreases, resulting in less mulch film tension between the actively rotating roll and the pressing wheel, leading to loose mulch film, damage, and reduced insulation and moisture retention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0016] Figure 2 This is a half-sectional schematic diagram of the material storage box of the present invention;

[0017] Figure 3 This is a half-sectional schematic diagram of the adjustment mechanism of the present invention;

[0018] Figure 4 This is a half-sectional view of the T-shaped shaft of the present invention;

[0019] Figure 5 This is a half-sectional schematic diagram of the rotating sleeve of the present invention.

[0020] In the diagram: 1. Main shaft; 2. Rectangular sleeve; 3. Rectangular plate; 4. Pressure roller; 5. Connecting plate; 6. Adjusting rod; 7. Sealing wheel; 8. Connecting frame; 9. Traction frame; 10. Material box; 11. Receiving roller shell; 12. Arc plate; 13. Drive motor; 14. Drive wheel; 15. Clamping mechanism; 151. Rotating sleeve; 152. Electromagnetic ring; 153. T-shaft; 154. Air passage; 155. Elastic membrane; 156. Permanent magnet; 157. Compression spring; 16. Adjusting mechanism; 161. Column; 162. Cross cavity; 163. Sliding block; 164. Tension spring; 165. Oil shell; 166. Sliding rod; 167. Return spring; 168. Connecting block; 17. Connecting rod; 18. Adjusting roller; 19. Driven wheel; 20. Transmission belt; 21. V-shaped plate. Detailed Implementation

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 5As shown, this embodiment of the invention provides an agricultural mulch film covering device, including a main shaft 1. Rectangular sleeves 2 are fixedly sleeved on both sides of the main shaft 1. A rectangular plate 3 is fixedly connected to the lower end of the rectangular sleeve 2. A pressing wheel 4 is fixedly connected between the two rectangular plates 3. A connecting plate 5 is fixedly connected to the left side of the rectangular sleeve 2. An adjusting rod 6 is fixedly sleeved on the left end of the connecting plate 5. A soil sealing wheel 7 is rotatably installed on the inner side of the adjusting rod 6. A connecting frame 8 is fixedly connected between the two connecting plates 5. Two traction frames 9 are fixedly connected to the right side of the main shaft 1. A material box 10 is fixedly connected to the right end of the traction frame 9. A take-up roller shell 11 is fixedly connected to the bottom of the material box 10. A V-shaped plate 21 is fixedly connected to the bottom of the take-up roller shell 11. Two arc-shaped plates 12 are provided on the top of the shell 11. A drive motor 13 is fixedly installed on the front side of the material box 10. A drive wheel 14 is fixedly connected to the output shaft end of the drive motor 13. Clamping mechanisms 15 are provided at both the front and rear of the material box 10. An adjustment mechanism 16 is fixedly connected to the outside of the clamping mechanism 15. A connecting rod 17 is fixedly connected between the two adjustment mechanisms 16. An adjustment roller 18 is movably sleeved in the middle of the connecting rod 17. A driven wheel 19 is fixedly installed on the curved surface of the front clamping mechanism 15. A transmission belt 20 is connected between the driven wheel 19 and the drive wheel 14. The clamping mechanism 15 includes a rotating sleeve 151. An electromagnetic ring 152 is fixedly connected inside the rotating sleeve 151. A T-shaped shaft 153 is slidably connected inside the sleeve 151. An air passage 154 is provided inside the T-shaped shaft 153. An elastic membrane 155 is fixedly connected to the inner end of the T-shaped shaft 153. A permanent magnet 156 is fixedly installed on the outer side of the T-shaped shaft 153. A compression spring 157 is fixedly connected between the outer side of the T-shaped shaft 153 and the rotating sleeve 151. Its function is to generate a magnetic field that attracts the permanent magnet 156 when the electromagnetic ring 152 is energized, thereby driving the T-shaped shaft 153 to move closer to the electromagnetic ring 152 and compressing the compression spring 157. During the movement of the permanent magnet 156, the air passage 154 will connect with the part of the rotating sleeve 151 near the material box 10, thereby connecting the air passage 154 and the elastic membrane 155. Compressed gas enters the inner side of the rotating sleeve 151, causing the elastic membrane 155 to stop expanding. When the permanent magnet 156 contacts the electromagnetic ring 152, the inner end of the T-shaped shaft 153 is flush with the inner wall of the material box 10, and the lowest mulch roll falls on top of the two arc plates 12. Then the electromagnetic ring 152 is de-energized, and the compression spring 157 pushes the T-shaped shaft 153 to reset and enter the paper roller in the middle of the mulch roll. The expanded elastic membrane 155 fixes the paper roller, thus completing the quick installation and replacement of the mulch roll. This solves the problems of the cumbersome installation steps of the existing mulch roll, the inconvenience of disassembly during replacement, the increased disassembly and assembly time of workers, the reduced efficiency, and the reduced practicality of the device.

[0023] The adjusting mechanism 16 includes a column 161 with a cross cavity 162 in the middle. A sliding block 163 is slidably connected inside the cross cavity 162. A tension spring 164 is fixedly connected between the sliding block 163 and the column 161. An oil shell 165 is rotatably connected to the curved surface of the column 161. A sliding rod 166 is slidably connected to the left side of the oil shell 165. A return spring 167 is fixedly connected between the right end of the sliding rod 166 and the inner wall of the oil shell 165. A connecting block 168 is fixedly connected to the middle of the oil shell 165. The function of the connecting block 168 is to adjust the rotation speed of the drive motor 13 according to the remaining amount of mulch film. That is, the less mulch film on the paper roller, the faster the rotation speed of the drive motor 13, thereby ensuring the mulch film is removed. The uniform laying of the film and the increased rotation speed of the driven wheel 19 will cause the column 161 to rotate faster, thereby causing the sliding block 163 to slide outward of the cross cavity 162 and increasing the tension of the tension spring 164. This will cause the hydraulic oil in the oil tank 165 to push the sliding rod 166 to move and squeeze the return spring 167. The connecting rod 17 and the adjusting roller 18 will follow the movement, thereby tightening the mulch film and maintaining a consistent tightness between the front and rear mulch film. This solves the problem that in the existing mulch film laying process, the diameter of the mulch film roll will gradually decrease, which will cause the mulch film to gradually tighten between the actively rotating mulch film roll and the pressing wheel 4, resulting in the mulch film being too loose, damaging the mulch film, and affecting the heat preservation and moisture retention effect.

[0024] Among them, the connecting frame 8 is fixedly connected to the main shaft 1 and the material box 10; the two arc-shaped plates 12 are fixedly connected to the material box 10; the bottom of the V-shaped plate 21 has many notches; the rotating sleeve 151 is rotatably connected to the material box 10 and has good sealing performance; the T-shaped shaft 153 is sleeved with the material box 10 and has good sealing performance; the curved surface of the rotating sleeve 151 is fixedly connected to the middle of the driven wheel 19; the permanent magnet 156 is horizontally aligned with the electromagnetic ring 152; the column 161 is fixedly connected to the rotating sleeve 151; the connecting block 168 is fixedly connected to the material box 10; the sliding rod 166 is fixedly connected to the connecting rod 17; the oil shell 165 is filled with an appropriate amount of hydraulic oil; the air passage 154 and the elastic membrane 155 are filled with... The compressed gas is used to pass the plastic film through the curved surface of the adjusting roller 18 and complete the initial laying of the plastic film. Then, the drive motor 13 works, driving the drive wheel 14 to rotate. The drive wheel 14 drives the driven wheel 19, clamping mechanism 15 and adjusting mechanism 16 to rotate through the transmission belt 20. The plastic film roll between the two clamping mechanisms 15 rotates accordingly. At the same time, the traction machine drives the device to lay the plastic film. During the process, the pressing wheel 4 will press the plastic film tightly, the rotating sealing wheel 7 will guide the soil to the edge of the plastic film for sealing, and the V-shaped plate 21 will loosen the soil compacted by the traction machine and guide larger stones or hard soil clods to both sides to prevent them from damaging the plastic film.

[0025] Working principle:

[0026] Before using this invention, connect the traction frame 9 to the traction machine, and place an appropriate amount of plastic film rolls inside the material box 10;

[0027] When this invention is used, the electromagnetic ring 152 is energized to generate a magnetic field that attracts the permanent magnet 156, thereby driving the T-shaped shaft 153 to move closer to the electromagnetic ring 152 and compress the compression spring 157. During the movement of the permanent magnet 156, the air passage 154 will connect with the part of the rotating sleeve 151 near the material box 10, so that the compressed gas in the air passage 154 and the elastic membrane 155 enters the inner side of the rotating sleeve 151, thereby preventing the elastic membrane 155 from expanding. When the permanent magnet 156 contacts the electromagnetic ring 152, the inner end of the T-shaped shaft 153 is flush with the inner wall of the material box 10, and the bottommost mulch roll falls on top of the two arc plates 12. Then the electromagnetic ring 152 is de-energized, the compression spring 157 pushes the T-shaped shaft 153 to reset and enter the paper roller in the middle of the mulch roll, while the expanded elastic membrane 155 fixes the paper roller, thereby completing the rapid installation of the mulch roll.

[0028] The plastic film is passed through the curved surface of the adjusting roller 18 to complete the initial laying of the plastic film. Then the drive motor 13 works to drive the drive wheel 14 to rotate. The drive wheel 14 drives the driven wheel 19, clamping mechanism 15 and adjusting mechanism 16 to rotate through the transmission belt 20. The plastic film roll between the two clamping mechanisms 15 rotates accordingly. At the same time, the traction machine drives the device to lay the plastic film. During the process, the pressing wheel 4 will press the plastic film tightly, the rotating sealing wheel 7 will guide the soil to the edge of the plastic film for sealing, and the V-shaped plate 21 will loosen the soil compacted by the traction machine and guide larger stones or hard soil clods to both sides to prevent them from damaging the plastic film.

[0029] The drive motor 13 adjusts its speed according to the remaining amount of mulch film (the control module of the drive motor in the prior art gradually adjusts the speed according to the actual consumption rate of mulch film in the process, which is the prior art and will not be described in detail here). That is, the less mulch film on the paper roller, the faster the speed of the drive motor 13, thereby ensuring the uniform laying of mulch film. The increased speed of the driven wheel 19 will cause the speed of the column 161 to increase, thereby causing the sliding block 163 to slide to the outside of the cross cavity 162 and increasing the tension of the tension spring 164. This causes the hydraulic oil in the oil tank 165 to push the sliding rod 166 to move and squeeze the return spring 167. The connecting rod 17 and the adjusting roller 18 follow the movement, thereby causing the mulch film to tighten.

[0030] When the plastic film roll is replaced after use, the electromagnetic ring 152 is energized, and the T-shaped shaft 153 moves close to the electromagnetic ring 152, so that the remaining paper roll falls from between the two arc plates 12 into the inside of the take-up roll shell 11. Then, the new plastic film falls on the upper part of the arc plates 12, the electromagnetic ring 152 is de-energized, and the T-shaped shaft 153 is reset, thus completing the replacement of the plastic film roll.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An agricultural mulch film covering device, comprising a main shaft (1), rectangular sleeves (2) fixedly sleeved on both sides of the main shaft (1), a rectangular plate (3) fixedly connected to the lower end of the rectangular sleeves (2), a pressure wheel (4) fixedly connected between the two rectangular plates (3), and a connecting plate (5) fixedly connected to the left side of the rectangular sleeves (2), characterized in that: An adjusting rod (6) is fixedly sleeved on the left end of the connecting plate (5). A sealing wheel (7) is rotatably installed on the inner side of the adjusting rod (6). A connecting frame (8) is fixedly connected between the two connecting plates (5). Two traction frames (9) are fixedly connected to the right side of the main shaft (1). A material box (10) is fixedly connected to the right end of the traction frame (9). A roller shell (11) is fixedly connected to the bottom of the material box (10). A V-shaped plate (21) is fixedly connected to the bottom of the roller shell (11). Two arc-shaped plates (12) are provided above the roller shell (11). The front side of the material box (10) is fixedly... A drive motor (13) is fixedly installed, and a drive wheel (14) is fixedly connected to the output shaft end of the drive motor (13). The material box (10) is provided with clamping mechanisms (15) at both the front and rear. An adjustment mechanism (16) is fixedly connected to the outside of the clamping mechanism (15). A connecting rod (17) is fixedly connected between the two adjustment mechanisms (16). An adjustment roller (18) is movably sleeved in the middle of the connecting rod (17). A driven wheel (19) is fixedly installed on the curved surface of the front clamping mechanism (15). A transmission belt (20) is connected between the driven wheel (19) and the drive wheel (14). The clamping mechanism (15) includes a rotating sleeve (151), an electromagnetic ring (152) is fixedly connected inside the rotating sleeve (151), a T-shaped shaft (153) is slidably connected inside the rotating sleeve (151), an air passage (154) is opened inside the T-shaped shaft (153), an elastic membrane (155) is fixedly connected to the inner end of the T-shaped shaft (153), a permanent magnet (156) is fixedly installed on the outer side of the T-shaped shaft (153), and a compression spring (157) is fixedly connected between the outer side of the T-shaped shaft (153) and the rotating sleeve (151). The adjustment mechanism (16) includes a column (161), a cross cavity (162) is provided in the middle of the column (161), a sliding block (163) is slidably connected inside the cross cavity (162), a tension spring (164) is fixedly connected between the sliding block (163) and the column (161), an oil shell (165) is rotatably connected to the curved surface of the column (161), a sliding rod (166) is slidably connected to the left side of the oil shell (165), a return spring (167) is fixedly connected between the right end of the sliding rod (166) and the inner wall of the oil shell (165), and a connecting block (168) is fixedly connected to the middle of the oil shell (165).

2. The agricultural mulch film covering device according to claim 1, characterized in that: The connecting frame (8) is fixedly connected to the main shaft (1) and the material box (10), and the two arc plates (12) are fixedly connected to the material box (10). The bottom end of the V-shaped plate (21) has many notches.

3. An agricultural mulch film covering device according to claim 2, characterized in that: The rotating sleeve (151) is rotatably connected to the material box (10) and has good sealing performance. The T-shaped shaft (153) is sleeved with the material box (10) and has good sealing performance. The curved surface of the rotating sleeve (151) is fixedly connected to the middle of the driven wheel (19). The permanent magnet (156) is horizontally aligned with the electromagnetic ring (152).

4. An agricultural mulch film covering device according to claim 3, characterized in that: The column (161) is fixedly connected to the rotating sleeve (151), the connecting block (168) is fixedly connected to the material box (10), and the sliding rod (166) is fixedly connected to the connecting rod (17).

5. An agricultural mulch film covering device according to claim 4, characterized in that: The oil tank (165) is filled with an appropriate amount of hydraulic oil, and the air passage (154) and the elastic membrane (155) are filled with compressed gas.

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