Plastic film mulching tightness adjusting device

Abstract

The invention discloses a plastic film mulching tightness adjusting device which comprises a supporting frame, and a mulching film adjusting mechanism and a heating sealing mechanism are arranged on the supporting frame. The film covering adjusting mechanism comprises a first film covering assembly and a second film covering assembly which are arranged in parallel in a spaced mode in the first direction, the first film covering assembly comprises a plurality of first film covering shaft rods and first driving parts which are arranged in a step shape, and the second film covering assembly comprises a second film covering shaft rod; according to the plastic film mulching tightness adjusting device, the first film mulching assembly and the second film mulching assembly are arranged, the first film mulching assembly further comprises a plurality of first film mulching shaft rods, the first driving part drives the first film mulching shaft rods to move, the distance between the multiple sets of first film mulching shaft rods can be accurately adjusted, and the requirements of different crops for line spacing are met; and meanwhile, the number of mulching film rolls on the first film mulching shaft rod and the second film mulching shaft rod is increased or decreased, the reinforced sealing requirement of single-area multi-layer film mulching can be met, and multi-area synchronous film mulching operation can be achieved.

Description

Technical Field

[0001] This invention belongs to the field of mulching technology, and in particular to a device for adjusting the sealing degree of mulch film coverage. 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.

[0003] However, due to differences in terrain and crop varieties, the required amount and spacing of mulch film also vary. Most existing mulch film covering devices are often too large to adjust the number of films applied simultaneously or the spacing between them, thus failing to meet the mulch film requirements of different terrains and crop varieties. Summary of the Invention

[0004] Purpose of the invention: To provide a plastic film covering sealing adjustment device to solve the problem that most existing plastic film covering devices cannot adjust the amount and spacing of film according to terrain and crops, and to adapt to a variety of agricultural scenarios. Technical solution

[0005] A plastic film covering sealing adjustment device includes a support frame, on which a film covering adjustment mechanism and a heating sealing mechanism are provided. The heating sealing mechanism is located on one side of the film covering adjustment mechanism and is used to soften and seal the plastic film laid on the ground by the film covering adjustment mechanism. The film covering adjustment mechanism includes a first film covering component and a second film covering component that are spaced apart and arranged in parallel along a first direction. The first film covering component and the second film covering component are equipped with mulch film, which is used to lay the mulch film on the ground when the support frame moves along the first direction. The first coating assembly includes a first driving member and a plurality of first coating shafts arranged in a stepped manner. The second coating assembly includes a second coating shaft. The rotation axes of the plurality of first coating shafts and the second coating shafts all extend along a second direction perpendicular to the first direction. The first driving member is used to drive the plurality of first coating shafts to move and change the spacing along the second direction.

[0006] In some possible embodiments, the first driving member includes an electric push rod, a sliding frame connected to the output end of the electric push rod, and a folding clip. The electric push rod is disposed in a connecting frame, the connecting frame is fixed on the support frame, and the sliding frame is slidably connected to the connecting frame. The folding clip is located between the sliding frame and the connecting frame, and several first coated shafts are mounted on the folding clip via several connectors.

[0007] In a further embodiment, the folding clip includes a plurality of hinged folding rods, with the two folding rods located at the outermost ends being rotatably connected to the sliding frame and the connecting frame respectively via pins.

[0008] In a further embodiment, the connector includes a connecting rod and a connecting plate. One end of the connecting rod is fixed to the folding rod, and the other end is fixedly connected to the top end of the connecting plate. The bottom end of the connecting plate is rotatably connected to the first film-coated shaft.

[0009] In a further embodiment, the connector is provided with an infrared ranging sensor for detecting the diameter of the mulch roll mounted on the first mulch shaft.

[0010] In a further embodiment, the two ends of the second film-coated shaft are rotatably mounted on recesses, and the two recesses are symmetrically fixed to the top of the support frame.

[0011] In a further embodiment, a film tensioning rod is provided below the second film-coating shaft. The two ends of the film tensioning rod are rotatably connected to the bottom ends of two vertical plates, which are mounted on the support frame.

[0012] In a further embodiment, the heat sealing mechanism is disposed on the side of the second coating assembly away from the first coating assembly, and the heat sealing mechanism includes a second driving member, a sealing assembly, and a heating assembly disposed on the sealing assembly; The second driving component includes an electric slide rail mounted on the support frame. The bottom ends of the electric slide rail are respectively connected to sealing components via two sliders. The electric slide rail drives the two sealing components to move along the second direction to adjust the spacing.

[0013] In a further embodiment, the sealing assembly includes two soil-covering plates and two pressure rollers, with the two soil-covering plates respectively connected to the two sliders via two lower extension rods; Each of the two lower extension rods is provided with a slide rod on one side, and the bottom end of the slide rod is provided with the pressure roller. The slide rod is slidably connected to the support frame.

[0014] In a further embodiment, the heating assembly includes an electric heating strip and a temperature controller. The electric heating strip is spiral-shaped, and its two ends are respectively connected to the two pressing rollers. The temperature controller is located at one end of the electric heating strip.

[0015] The beneficial effects of this invention are as follows: By setting up a first film covering assembly and a second film covering assembly, and the first film covering assembly further comprising a plurality of first film covering shafts, and driving the plurality of first film covering shafts to move via a first driving component, the spacing of multiple sets of first film covering shafts can be precisely adjusted to adapt to the row spacing requirements of different crops; simultaneously, it supports increasing or decreasing the number of film rolls on the first and second film covering shafts, which can not only meet the enhanced sealing requirements of multi-layer film covering in a single area, but also realize simultaneous film covering operations in multiple areas, effectively solving the pain point of traditional devices being unable to adjust the number and spacing of film coverings according to terrain and crops, and its adaptability covers a variety of agricultural scenarios. Furthermore, the components are electrically driven to achieve linkage adjustment, eliminating the need for repeated manual adjustments, significantly shortening the preparation time and single operation cycle, and is especially suitable for large-scale agricultural production scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall side structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the sealing assembly structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the front structure of the first coating component of the present invention.

[0020] Figure 5 This is a schematic diagram of the pressure film tensioning rod structure of the present invention.

[0021] Figure 6 This is a side view of the first coating component of the present invention.

[0022] Figure 7 This is a bottom view schematic diagram of the connecting frame and folding clip structure of the present invention.

[0023] The attached figures are labeled as follows: support frame 1, protective cover 2, connecting frame 3, folding clamp 4, connecting rod 5, connecting plate 6, first film covering shaft 7, electric slide rail 8, slider 9, lower extension rod 10, soil covering plate 11, slide rod 12, film pressing wheel 13, vertical plate 14, film pressing tension rod 15, second film covering shaft 16, electric push rod 17, slide frame 18, plowing teeth 19, support wheel 20, positioning inclined plate 21, soil accumulator 22, recessed seat 23, electric heating strip 24, chuck 25, infrared ranging sensor 26. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: As Figure 1 and Figure 2 As shown, this embodiment discloses a plastic film covering sealing adjustment device, which includes a support frame 1. The support frame 1 serves as the load-bearing base of the whole device. Support wheels 20 are rotatably connected to both sides of the support frame 1. Several positioning inclined plates 21 are respectively provided on the outer side of each support wheel 20. The support wheels 20 can drive the whole device to move in the field. The positioning inclined plates 21 can enhance the stability of the device in complex terrain and prevent deviation during movement.

[0027] The support frame 1 is equipped with a film-covering adjustment mechanism and a heating and sealing mechanism. The heating and sealing mechanism is located on one side of the film-covering adjustment mechanism and is used to soften and seal the mulch film laid on the ground by the film-covering adjustment mechanism. Several plowing teeth 19 are provided on the support frame 1 at the end away from the heating and sealing mechanism. The bottom end of each plowing tooth 19 is inclined downwards. When the device moves forward in the first direction, the plowing teeth 19 can pre-loosen and prepare the soil, providing a flat soil base for subsequent film-covering operations. The heating and sealing mechanism enables precise and tight covering of the mulch film edges, forming a stable sealing structure, significantly reducing soil moisture evaporation and the risk of external pest infestation, and ensuring the core functions of the mulch film in warming and retaining moisture, preventing pests, and promoting growth.

[0028] Specifically, the film covering adjustment mechanism includes a first film covering component and a second film covering component arranged at intervals and parallel to each other along a first direction. The first film covering component and the second film covering component are equipped with mulch film, which is used to lay the mulch film on the ground when the support frame 1 moves forward along the first direction. The first direction is the forward direction of the support frame. like Figure 4 As shown, the first coating assembly includes a first driving member and a plurality of first coating shafts 7 arranged in a stepped manner. The plurality of first coating shafts 7 are all of the same length, and the stepped arrangement allows for variation in the height of each first coating shaft. When the plurality of first coating shafts 7 move laterally in the second direction under the action of the first driving member, they approach each other and overlap vertically, thus enabling multi-layer coating operations in the same area. Specifically, the arrangement of the first coating shafts 7 of the same length ensures the accuracy of the lateral movement of each first coating shaft 7.

[0029] The second film covering assembly includes a second film covering shaft 16. The rotation axes of the plurality of first film covering shafts 7 and the second film covering shaft 16 all extend along a second direction perpendicular to the first direction. The first driving member is used to drive the plurality of first film covering shafts 7 to move and change their spacing along the second direction, where the axial extension direction of the film covering shaft is perpendicular to the forward direction. The two ends of the second film covering shaft 16 are rotatably mounted on recesses 23. Two recesses 23 are symmetrically fixed to the top of the support frame 1 for placing and supporting the film roll. The recesses 23 provide stable support for the second film covering shaft 16, which can cooperate with the first film covering shafts 7 to achieve simultaneous laying of multiple sets of film.

[0030] The device is moved by a propulsion device or a traction device. The support wheel 20 rotates to make the device move forward smoothly, and the positioning inclined plate 21 enhances the stability of the device. During the movement, the plow teeth 19 first loosen and prepare the soil. The mulch film rolls on the first mulching shaft 7 and the second mulching shaft 16 are released synchronously, and the mulch film is laid on the soil surface under its own weight and the action of subsequent components.

[0031] like Figure 7 As shown, the first driving component includes an electric push rod 17, a sliding frame 18 connected to the output end of the electric push rod 17, and a folding clip 4. The electric push rod 17 is disposed in a connecting frame 3, which is fixed to the support frame 1. The sliding frame 18 is slidably connected to the connecting frame 3. When the electric push rod 17 is working, it can drive the sliding frame 18 to slide back and forth along the length direction of the connecting frame 3. The length direction of the connecting frame 3 is perpendicular to the first direction.

[0032] Furthermore, in order to protect components such as the electric push rod 17, a protective cover 2 is fixed on the support frame 1. The protective cover 2 can protect the components inside it from dust and collision, and the connecting frame 3 is set inside the protective cover 2.

[0033] The folding clip 4 is located between the sliding frame 18 and the connecting frame 3, and several first film-covering shafts 7 are mounted on the folding clip 4 via several connectors. When the sliding frame 18 slides, it can cause the folding clip 4 to unfold or retract along a predetermined path. The folding clip 4 includes several hinged folding rods, and the two folding rods located at the outermost ends are rotatably connected to the sliding frame 18 and the connecting frame 3 respectively via pins. The unfolding or retraction of the folding clip 4 can cause the connecting plates 6 and the first film-covering shafts 7 to move closer or further apart through the connecting rods 5, thereby adjusting the spacing of the mulch film. At the same time, the number of mulch film rolls on the first film-covering shafts 7 can be increased or decreased according to actual needs to meet different mulching requirements.

[0034] like Figure 6As shown, the connector includes a connecting rod 5 and a connecting plate 6. One end of the connecting rod 5 is fixed to the folding rod, and the other end is fixedly connected to the top of the connecting plate 6. The bottom end of the connecting plate 6 is rotatably connected to the first film-covering shaft 7. The length of the connecting plate 6 arranged along the second direction increases proportionally in sequence. For example, the length of each connecting plate 6 is extended by 30 centimeters in sequence. The first film-covering shafts 7 are staggered to prevent interference of the film roll, thereby realizing that the several first film-covering shafts 7 are distributed in a stepped manner. The distance between the several first film-covering shafts 7 is adjusted as the folding clip 4 extends and contracts.

[0035] A chuck 25 is provided at the end of the first film-covering shaft 7 away from the connecting plate 6 for limiting the film roll, allowing for quick replacement of the film roll without tools. The chuck 25 is preferably T-shaped, with its vertical free end inserted into a slot at the free end of the first film-covering shaft 7, and its horizontal portion parallel to the connecting plate 6, respectively limiting the film roll at both ends. Specifically, the free end of the first film-covering shaft 7 is not connected to the connecting plate 6, and the free end of the vertical portion of the chuck 25 is not connected to the horizontal portion.

[0036] Based on the type of crop to be planted and the terrain characteristics, determine the required amount of mulch and the spacing between the mulch films. Install the corresponding number of mulch film rolls on the first mulch film shaft 7 and the second mulch film shaft 16 respectively. Start the electric push rod 17 to drive the sliding frame 18 to slide along the connecting frame 3. The sliding frame 18 drives the folding clip 4 to unfold or retract. Through the connecting rod 5, adjust each of the first mulch film shafts 7 to the preset spacing. Then turn off the electric push rod 17 to complete the positioning.

[0037] Example 2: Based on Example 1, this example discloses a mulch film sealing adjustment device, which also includes an infrared ranging sensor 26; as shown Figure 6 As shown, an infrared ranging sensor 26 is provided on the connector to detect the diameter of the mulch film roll installed on the first mulching shaft 7. Each connector is equipped with an infrared ranging sensor 26, capable of detecting the mulch film roll installed on the corresponding first mulching shaft 7.

[0038] Specifically, an infrared ranging sensor 26 is provided on the side of the connecting plate 6 facing the first film-covering shaft 7. The infrared ranging sensor 26 detects the diameter of the film roll in real time. When the diameter of the film roll is less than the preset allowance, an audible and visual alarm is used to remind the user to replace it, thereby reducing the frequency of manual inspection. Preferably, the preset allowance is set to 5cm.

[0039] The infrared ranging sensor is electrically connected to the alarm to transmit signals.

[0040] Example 3: Based on Example 1, this example discloses a device for adjusting the sealing degree of plastic film mulching, such as... Figure 3 and Figure 5 As shown, a film tensioning rod 15 is also provided below the second film covering shaft 16. The two ends of the film tensioning rod 15 are rotatably connected to the bottom ends of two vertical plates 14, and the top ends of the two vertical plates 14 are symmetrically arranged on the support frame 1. The film tensioning rod 15 can tension the film during the film covering process, preventing the film from loosening and affecting the covering effect. Furthermore, elongated holes can be opened on the vertical plates 14 to adjust the position of the film tensioning rod 15, thereby adjusting the pressure applied by the film tensioning rod 15 to the film covering.

[0041] Example 4: Based on Example 1, this example discloses a mulch film sealing adjustment device to improve the sealing degree of the mulch film laid on the ground, such as... Figure 1 As shown, the heating and sealing mechanism is positioned on the side of the second coating assembly away from the first coating assembly. The heating and sealing mechanism includes a second driving member, a sealing assembly, and a heating assembly disposed on the sealing assembly. The second driving member includes an electric slide rail 8 mounted on the support frame 1. The bottom ends of the electric slide rail 8 are respectively connected to the sealing assembly via two sliders 9. The electric slide rail 8 drives the two sealing assemblies to move along the second direction to adjust the spacing. The two sliders 9 move simultaneously towards or away from each other under the drive of the electric slide rail 8, thus moving closer or further apart.

[0042] The sealing assembly includes two soil-covering plates 11 and two pressure rollers 13. The two soil-covering plates 11 are connected to two sliders 9 via two lower extension rods 10. The two soil-covering plates 11 are positioned opposite each other and fixed to the bottom ends of the two lower extension rods 10, with the top ends of the lower extension rods 10 connected to the sliders 9. When the sliders 9 move the soil-covering plates 11, the soil-covering width can be adjusted to ensure the edges of the mulch film are tightly covered. Furthermore, each soil-covering plate 11 has a soil-gathering block 22 on one side. As the device continues to move, the soil-gathering block 22 gathers soil to the soil-covering plate 11, which then covers the soil at the edge of the mulch film, achieving a sealed and fixed mulch film, thus completing the mulching operation.

[0043] Each of the two lower extension rods 10 is provided with a sliding rod 12 on one side. The bottom end of the sliding rod 12 is provided with a pressing wheel 13. The sliding rod 12 is slidably connected to the support frame 1. When the support frame 1 moves forward, the pressing wheel 13 is located in front of the soil covering plate 11, so that the mulch film can be pressed tightly onto the soil surface before covering with soil, preventing the mulch film from shifting. The sliding rod 12 can move synchronously with the lower extension rod 10 to ensure that the pressing position matches the soil covering position. Specifically, a sliding block can also be provided between the sliding rod 12 and the support frame 1 to make the sliding rod 12 slide synchronously and stably when the lower extension rod 10 slides.

[0044] The heating assembly includes an electric heating strip 24 and a temperature controller. The electric heating strip 24 is spiral-shaped, and its two ends are respectively connected to the two pressing rollers 13. The temperature controller is electrically connected to the electric heating strip 24 and is located at one end of the electric heating strip 24. The temperature controller controls the temperature of the electric heating strip 24 at 40-60℃ to prevent the mulch film from melting. By heating and softening the mulch film and pressing it with the roller, the edge of the mulch film is pre-fitted to the soil surface, and then the sealing is completed by the covering plate 11, which significantly improves the sealing effect. For scenarios with high sealing requirements, such as greenhouse seedling cultivation and saline-alkali land improvement, it forms a differentiated technological advantage. The electric heating strip 24 is spiral in shape and is mainly made of iron-chromium-aluminum alloy and nickel-chromium alloy, so that it is compressed or extended with the displacement of the pressing roller 13, which better meets the mulching requirements of different terrains and mulch film varieties and improves the mulching effect.

[0045] Furthermore, a processor can be installed on the support frame 1, mainly including a temperature control module, an electric push rod control module, and an electric slide rail control module, which respectively correspond to the precise control of heating, film spacing, and sealing component spacing.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0047] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A device for adjusting the sealing degree of plastic film mulching, comprising a support frame, characterized in that: The support frame is equipped with a film-covering adjustment mechanism and a heating and sealing mechanism. The heating and sealing mechanism is located on one side of the film-covering adjustment mechanism and is used to soften and seal the film laid on the ground by the film-covering adjustment mechanism. The film covering adjustment mechanism includes a first film covering component and a second film covering component that are spaced apart and arranged in parallel along a first direction. The first film covering component and the second film covering component are equipped with mulch film, which is used to lay the mulch film on the ground when the support frame moves along the first direction. The first coating assembly includes a first driving member and a plurality of first coating shafts arranged in a stepped manner. The second coating assembly includes a second coating shaft. The rotation axes of the plurality of first coating shafts and the second coating shafts all extend along a second direction perpendicular to the first direction. The first driving member is used to drive the plurality of first coating shafts to move and change the spacing along the second direction.

2. The mulch film sealing adjustment device according to claim 1, characterized in that: The first driving component includes an electric push rod, a sliding frame connected to the output end of the electric push rod, and a folding clip. The electric push rod is disposed in the connecting frame, the connecting frame is fixed on the support frame, and the sliding frame is slidably connected to the connecting frame. The folding clip is located between the sliding frame and the connecting frame, and several first coated shafts are mounted on the folding clip via several connectors.

3. The mulch film sealing adjustment device according to claim 2, characterized in that: The folding clamp includes several hinged folding rods, with the two folding rods located at the outermost ends being rotatably connected to the sliding frame and the connecting frame respectively via pins.

4. The mulch film sealing adjustment device according to claim 3, characterized in that: The connector includes a connecting rod and a connecting plate. One end of the connecting rod is fixed to the folding rod, and the other end is fixedly connected to the top of the connecting plate. The bottom end of the connecting plate is rotatably connected to the first film-coated shaft.

5. The mulch film sealing adjustment device according to claim 1, characterized in that: The connector is equipped with an infrared ranging sensor for detecting the diameter of the mulch roll installed on the first mulching shaft.

6. The mulch film sealing adjustment device according to claim 1, characterized in that: The two ends of the second film-coated shaft are rotatably mounted on the recesses, and the two recesses are symmetrically fixed to the top of the support frame.

7. The mulch film sealing adjustment device according to claim 1, characterized in that: Below the second film-coating shaft, there is also a film-pressing tension rod. The two ends of the film-pressing tension rod are rotatably connected to the bottom ends of the two vertical plates, which are mounted on the support frame.

8. The mulch film sealing adjustment device according to claim 1, characterized in that: The heating and sealing mechanism is located on the side of the second coating assembly away from the first coating assembly. The heating and sealing mechanism includes a second driving member, a sealing assembly, and a heating assembly disposed on the sealing assembly. The second driving component includes an electric slide rail mounted on the support frame. The bottom ends of the electric slide rail are respectively connected to sealing components via two sliders. The electric slide rail drives the two sealing components to move along the second direction to adjust the spacing.

9. The mulch film sealing adjustment device according to claim 1, characterized in that: The sealing assembly includes two soil covering plates and two pressure rollers, with the two soil covering plates respectively connected to the two sliders via two lower extension rods; Each of the two lower extension rods is provided with a slide rod on one side, and the bottom end of the slide rod is provided with the pressure roller. The slide rod is slidably connected to the support frame.

10. The mulch film sealing adjustment device according to claim 1, characterized in that: The heating assembly includes an electric heating strip and a temperature controller. The electric heating strip is spiral-shaped, and its two ends are respectively connected to the two pressing rollers. The temperature controller is located at one end of the electric heating strip.

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