Liquid mulch film forming apparatus and method

Abstract

The present application relates to the field of agricultural technology, and more particularly to a kind of liquid mulch film forming device and method, the present application includes carrier, first sprayer is equipped on carrier, two extension rods are equipped on carrier, extension rod is located at the two sides of first sprayer respectively, second sprayer is equipped on the end of extension rod away from carrier, liquid mulch source is equipped on carrier, first sprayer and second sprayer are communicated with liquid mulch source, and first sprayer and second sprayer are used to spray liquid mulch;Extension rod bottom is equipped with several air outlet assemblies, air supply assembly for supplying air to air outlet assembly is equipped on carrier, and air outlet assembly is used to accelerate the evaporation of liquid mulch sprayed by second sprayer by wind power effect.The technical scheme of the present application can optimize the liquid mulch film forming process on the ridge, and improve the effectiveness and uniformity of liquid mulch on the ridge.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural technology, in particular to a liquid mulch film forming device and method. BACKGROUND

[0002] Liquid mulch is a relative solid mulch by convention. Liquid mulch itself is a liquid, which will be solidified to form a very thin solidified film after being sprayed on the ground surface. The film has the effects of increasing temperature, preserving soil moisture, conserving water resources, maintaining water and soil, increasing soil aggregate structure and improving soil physical properties.

[0003] Patent publication No. CN106179811A discloses a liquid mulch film forming method and device, which sprays the film forming material and the dissolving liquid together to build the liquid mulch. However, the mulch needs to be shaped after water evaporation, and is still in liquid or semi-liquid state when sprayed. Part of the liquid mulch on the cultivated land needs to be sprayed on the ridge, and due to the large steepness of the side wall of the ridge, the liquid mulch will flow to the ridge ditch on both sides of the ridge due to its fluidity, which affects the coverage effectiveness and uniformity of the liquid mulch on the ridge. SUMMARY

[0004] To solve the above problems, the present application provides a liquid mulch film forming device and method for optimizing the liquid mulch film forming process at the edge of the ridge.

[0005] In order to achieve the above purpose, the technical scheme of the present application is as follows:

[0006] On the one hand, a liquid mulch film forming device is provided, which comprises a carrier, a first sprayer is arranged on the carrier, at least two extension rods are arranged on the carrier, the extension rods are distributed on both sides of the first sprayer, a second sprayer is arranged at the end of the extension rod away from the carrier, the second sprayer is located at the front end of the first sprayer, a liquid mulch source is arranged on the carrier, the first sprayer and the second sprayer are in communication with the liquid mulch source, and the first sprayer and the second sprayer are used for spraying liquid mulch.

[0007] The side wall of the extension rod is provided with a plurality of air outlet assemblies, and an air supply assembly for supplying air to the air outlet assemblies is arranged on the carrier, and the air outlet assemblies are used for blowing the spraying area of the second sprayer.

[0008] The above scheme has the following beneficial effects:

[0009] 1. In this solution, the second sprayer is used to spray liquid mulch onto the edge areas (bottom areas of the sidewalls) of the ridge. Since the second sprayer is mounted on an extension rod that protrudes forward of the carrier, it sprays the liquid mulch onto the ridge edge areas before the first sprayer. After the second sprayer sprays, the air outlet continuously blows air into the area where the liquid mulch has been sprayed, causing the liquid mulch to evaporate and dry quickly, forming a film rapidly. This reduces uneven film formation caused by the flow of the liquid mulch and better maintains the shape of the liquid mulch film on the ridge sidewalls.

[0010] 2. In this scheme, after the film is formed on both sides of the ridge, the first sprayer will spray liquid mulch onto the non-edge area in the middle of the ridge. The liquid mulch in this part is a distance away from the edge of the ridge, and is less affected by the steepness of the edge of the ridge. After the film is formed on both sides of the ridge, it will increase the thickness of the edge of the ridge and make the flow of the liquid mulch more difficult. This makes the flow of the liquid mulch sprayed by the first sprayer on the ridge weaker, so that it forms a film more evenly and effectively on the surface of the ridge and is less likely to flow continuously into the furrow along the side wall of the ridge.

[0011] Furthermore, the carrier is a vehicle body; the vehicle body is equipped with a chassis with adjustable height.

[0012] Beneficial effects: The carrier can be a vehicle body, facilitating transportation, transfer, and deployment, and enabling the first and second sprayers to move along the ridges via the vehicle body. Different ridges may have different heights, and users can adapt to ridges of varying heights by adjusting the vehicle chassis.

[0013] Furthermore, the first sprayer includes several horizontally distributed spraying units, each of which is connected to a valve.

[0014] Beneficial effects: The ridges may have different widths, and users can control the width of the liquid mulch sprayed by the first sprayer by opening and closing the valve.

[0015] Furthermore, the end of the extension rod closest to the carrier is slidably connected to the carrier; the extension rod is a telescopic tube composed of several unit sections.

[0016] Beneficial effect: The ridges may have different widths, and users can adjust the distance between the extension rods to match the width of the ridge by sliding the extension rods.

[0017] Furthermore, the air supply component is an air pump, and the air outlet component includes an air outlet, which is set on the unit section. All air outlets are connected to the output end of the air pump, and the air outlets are all in the direction of air flow from the bottom of the ridge to the top of the ridge and from the outside of the ridge to the inside of the ridge. The second sprayer includes a pad, which is fixedly connected to the extension rod. The pad is equipped with a nozzle, which is connected to the liquid mulch source.

[0018] Beneficial effects: air pump can directly pump air to the air outlet, and then make the air outlet produce wind power. The air outlet is located on each unit section, so that there is wind power in the corresponding range of the whole unit section. The wind direction is from the bottom of the ridge to the top of the ridge and from the outside of the ridge to the inside of the ridge, which can effectively drive through the wind power and reduce the flow of liquid mulch on the steep slope of the ridge. Because the wind direction is from the bottom of the ridge to the top of the ridge, the height of the extension rod during operation is lower than the ridge, so the pad is set to raise the position of the second sprayer, so that the second sprayer can spray liquid mulch on the surface of the ridge.

[0019] Further, the liquid mulch source includes a storage tank, a liquid mulch storage cavity is arranged in the storage tank, a pump body is arranged in the liquid mulch storage cavity, the first sprayer and the second sprayer are in communication with the output end of the pump body, and an electric stirrer is arranged in the liquid mulch storage cavity.

[0020] Beneficial effects: the storage tank can store liquid mulch, and the pump body is driven during liquid mulch spraying. Part of the liquid mulch needs to be continuously stirred to maintain its liquid state, so the electric stirrer is arranged to adapt to the storage needs of a small number of varieties of liquid mulch.

[0021] Further, the extension rod away from the carrier end is provided with a roller, the roller faces the area between the extension rods, a first base block is rotationally connected to one end of the extension rod, a torsional spring is sleeved on the extension rod, one end of the torsional spring is fixedly connected with the extension rod, the other end of the torsional spring is fixedly connected with the first base block, the first base block is slidably connected with a second base block, the second base block is slidably connected with the carrier, and the position of the second base block relative to the carrier can be locked. A plurality of driving members for driving the first base block to slide are arranged on the second base block, the output shaft of the driving member is provided with an elastic rod which can elastically stretch and contract, and the two ends of the elastic rod are fixedly connected with the output shaft of the driving member and the first base block, respectively. The driving member is used to adjust the relative position of the first base block and the second base block.

[0022] Beneficial effects: the ridge is usually formed by a ditching and ridging machine. Due to the influence of the running stability of the ditching and ridging machine and the flowability of the soil, it is difficult to ensure that the slope of the side wall of the ridge is always consistent. If the spraying angle of the second sprayer is fixed, the slope of the side wall of the ridge will change, so that the liquid mulch cannot be accurately sprayed to the edges of the two sides of the ridge, and even part of the edges of the two sides of the ridge cannot be effectively sprayed with liquid mulch. The carrier may also deviate or tilt during operation, which may also cause the above-mentioned situation.

[0023] The second sprayer follows the extension rod in the lateral and vertical directions and the rotation angle adjustment range, so that the roller is always in close contact with the ridge side wall, the spraying angle of the second sprayer is adjusted according to the slope of the ridge side wall, and the liquid mulch sprayed by the second sprayer is always maintained on the edge area of the ridge. For the case that the slope of the ridge side wall is greatly different, the driving member can actively control the lateral and vertical directions of the extension rod.

[0024] Further, the roller is provided with a plurality of pressure sensors, the pressure sensors are uniformly distributed along the axial direction of the roller, the carrier is provided with a controller, the controller is used for acquiring the pressure data detected by the pressure sensors, and the fitting degree of the roller and the ridge side wall is judged based on the pressure data collected by the pressure sensors. When the fitting degree deviates from the preset range, the driving member is controlled to drive the first base block to drive the extension rod to displace until the fitting degree returns to the preset range.

[0025] Beneficial effects: The pressure sensors detect the pressure condition to judge the fitting degree of the roller and the ridge side wall, and the lateral and vertical directions and the rotation angle adjustment range can make the roller and the ridge side wall keep good fitting degree. When the fitting degree of the roller and the ridge side wall deviates from the preset range, the relative position of the first base block relative to the second base block is adjusted to make the fitting degree of the roller and the ridge side wall return to the preset range.

[0026] Further, the controller is used for recording the initial position of the first base block relative to the carrier and acquiring the relative position of the first base block and the second base block, and the controller controls the opening and closing of each spraying unit based on the relative position of the first base block and the second base block.

[0027] Beneficial effects: After the relative position of the first base block and the second base block changes, the distance between the first base blocks changes. The controller controls the spraying units between the first base blocks to start, and the remaining spraying units are closed, so that the liquid mulch sprayed on the non-edge area of the ridge is effectively covered.

[0028] On the other hand, a liquid mulch film forming method is provided, which is based on the above-mentioned liquid mulch film forming device and includes: when the liquid mulch is sprayed on the ridge, first, the second sprayer sprays the liquid mulch on the edge area of the ridge, and the wind force of the air outlet accelerates the evaporation of the liquid mulch on the edge area of the ridge to form a film; then, the first sprayer sprays the liquid mulch on the non-edge area of the ridge, and the liquid mulch on the non-edge area of the ridge naturally evaporates to form a film. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a perspective view of the embodiment of the liquid mulch film forming device of the present application;

[0030] Figure 2The second sprayer schematic view of the liquid mulch film forming device embodiment of the present application;

[0031] Figure 3 The front view schematic view of the liquid mulch film forming device embodiment of the present application;

[0032] Figure 4 The cross-sectional view schematic view of the liquid mulch film forming device embodiment of the present application;

[0033] Figure 5 The first base block and the second base block structure schematic view of the liquid mulch film forming device embodiment of the present application.

[0034] The reference signs in the description accompanying drawings include: 1, carrier; 2, first sprayer; 3, extension rod; 4, second sprayer; 5, base plate; 6, spraying unit; 7, unit section; 8, air pump; 9, air outlet; 10, pad; 11, spray head; 12, storage tank; 13, liquid mulch storage cavity; 14, pump body; 15, electric stirrer; 16, roller; 17, first base block; 18, torsional spring; 19, second base block; 20, driving piece. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] The following detailed description illustrates the specific implementation method:

[0039] Example 1, as shown in the attached document Figures 1-4 As shown: A liquid mulch film forming device includes a carrier 1, which is a vehicle body, specifically a wheeled vehicle, with an adjustable-height chassis 5. A first sprayer 2 is bolted to the carrier 1. The first sprayer 2 includes several laterally distributed spraying units 6, each of which is independently connected to a valve, preferably an electromagnetic valve for easy control of opening and closing. Two extension rods 3 are slidably connected to the carrier 1, distributed on both sides of the front end of the carrier 1; and both extension rods 3 are located below the first sprayer 2, with the extension rods 3 positioned on opposite sides of the first sprayer 2. A second sprayer 4 is located at the end of the extension rod 3 furthest from the carrier 1. The second sprayer 4 includes a pad 10, which is fixedly connected to the extension rod 3, and a nozzle 11 is provided on the pad 10. A liquid mulch film source is installed on carrier 1. The liquid mulch film source is a storage tank 12. The storage tank 12 has a liquid mulch film storage chamber 13. A pump body 14 is installed in the liquid mulch film storage chamber 13. The first sprayer 2 and the second sprayer 4 are both connected to the outlet of the pump body 14. The first sprayer 2 and the second sprayer 4 are both used to spray the liquid mulch film.

[0040] The side wall of the extension rod 3 is provided with several air outlet components, and the carrier 1 is provided with an air supply component that supplies air to the air outlet components. The air outlet components are used to accelerate the evaporation of the liquid mulch sprayed by the second sprayer 4 through the action of wind.

[0041] The extension rod 3 is a telescopic tube composed of several unit sections 7. The air supply component is an air pump 8, and the air outlet component includes an air outlet 9. The air outlets 9 are located on each unit section 7 and are all connected to the air pump 8. The air outlets 9 are all in the direction of air discharge from the bottom of the ridge to the top of the ridge and from the outside of the ridge to the inside of the ridge.

[0042] In use, the user first prepares the liquid mulch in the storage tank 12 and drives the vehicle to the ridge where the mulch will be applied. The vehicle chassis 5 is adjusted according to the height of the ridge so that the second sprayer 4 can spray the liquid mulch onto the upper surface of the ridge. Additionally, the air outlet 9 creates airflow from below the ridge upwards and from outside the ridge inwards. The distance between the extension rods 3 is adjusted, and by sliding the extension rods 3, the spray range of the second sprayer 4 covers the edge of the ridge. Then, by opening and closing the valve, the width of the liquid mulch sprayed by the first sprayer 2 is controlled so that the sprayed liquid mulch covers the non-edge parts of the ridge.

[0043] After the debugging is completed, the drive vehicle body moves along the length of the ridge, the second sprayer 4 is used to spray liquid mulch at the edges of the ridge, and because the second sprayer 4 is mounted on the extension rod 3, the extension rod 3 protrudes to the front of the carrier 1, and the liquid mulch sprayed by the first sprayer 2 is sprayed in advance. After the second sprayer 4 sprays, the air outlet assembly continues to blow air to the sprayed liquid mulch, thereby making the liquid mulch evaporate and dry quickly, thereby quickly forming a film, reducing the flow of liquid mulch due to the steepness of the ridge edge, and better maintaining the film formation on the ridge. Because each unit section 7 is provided with an air outlet 9, the vehicle body can continue to move, and the wind force continues to act on the liquid mulch on the edge of the ridge before the second sprayer 4 reaches the liquid mulch sprayed by the first sprayer 2, so that the liquid mulch evaporates and forms a film, which can facilitate continuous operation of the user.

[0044] The air pump 8 can directly pump air to the air outlet 9, thereby generating wind force at the air outlet 9. The air outlet 9 is located on each unit section 7, so that wind force is provided in the corresponding range of the entire unit section 7. The wind direction is from the bottom of the ridge to the top of the ridge and from the outside of the ridge to the inside of the ridge, which can effectively drive through the wind force and reduce the flow of liquid mulch at the steep slope of the ridge. Because the wind direction is from the bottom of the ridge to the top of the ridge, the height of the extension rod 3 during operation is lower than the ridge, so the pad 10 is provided to raise the position of the second sprayer 4, so that the second sprayer 4 can spray liquid mulch on the top surface of the ridge.

[0045] When the film formation on the edges of the ridge is completed, the first sprayer 2 sprays liquid mulch to the non-edge area of the center of the ridge. This part of the liquid mulch is a distance away from the edge of the ridge and is almost not affected by the steepness of the edge of the ridge. After the film formation on the edges of the ridge, the edge of the ridge increases in thickness and the flow of liquid mulch becomes difficult, so that the liquid mulch sprayed by the first sprayer 2 is less likely to flow into the ridge ditch.

[0046] The extension rod 3 extends the second sprayer 4 to the front of the second sprayer 4, so that the telescopic tube can have more adjustment range and be convenient to store and deploy.

[0047] Embodiment 2 differs from the above-mentioned embodiments in that the liquid mulch storage cavity 13 is bolted with an electric stirrer 15.

[0048] The specific implementation process is as follows: part of the liquid mulch needs to be continuously stirred to maintain its liquid state, so the electric stirrer 15 is provided to adapt to the storage needs of a small number of varieties of liquid mulch.

[0049] Embodiment 3 differs from the above-mentioned embodiments in that, as shown in FIG. 6, Figure 5As shown, the extension rods 3 are provided with rollers 16 at one end away from the carrier 1, the rollers 16 are towards the area between the extension rods 3, the extension rods 3 are rotatably connected with first base blocks 17 at one end of the carrier 1, the extension rods 3 are sleeved with torsion springs 18, one end of the torsion springs 18 is fixedly connected with the extension rods 3, the other end of the torsion springs 18 is fixedly connected with the first base blocks 17, the first base blocks 17 are slidably connected with second base blocks 19, the second base blocks 19 are slidably connected with the carrier 1, and the positions of the second base blocks 19 relative to the carrier 1 can be locked, the second base blocks 19 are provided with a plurality of driving members 20 for driving the first base blocks 17 to slide, the output shafts of the driving members 20 are provided with elastic rods which can elastically stretch and retract, and the two ends of the elastic rods are fixedly connected with the output shafts of the driving members 20 and the first base blocks 17 respectively, and the driving members 20 are used to control the relative positions of the first base blocks 17 and the second base blocks 19.

[0050] The rollers 16 are provided with a plurality of pressure sensors which are uniformly distributed along the axial direction of the rollers 16, and the carrier 1 is provided with a controller, the controller is used to acquire the pressure data detected by the pressure sensors, to judge the fit degree of the rollers 16 and the side walls of the ridges based on the pressure data collected by the pressure sensors, and to control the driving members 20 to drive the first base blocks 17 to displace the extension rods 3 when the fit degree deviates from a preset range, until the fit degree returns to the preset range.

[0051] The controller is used to record the initial position of the first base blocks 17 relative to the carrier 1, to acquire the relative positions of the first base blocks 17 and the second base blocks 19, and to control the opening and closing of the spraying units 6 based on the relative positions of the first base blocks 17 and the second base blocks 19.

[0052] The inclination slopes of the side walls of the ridges can be different, and the inclination slopes of the side walls of different sections of the same ridge can also be different. For the case that the inclination slopes of the side walls of the ridges change slightly, since the rollers 16 and the extension rods 3 are fixed, the second spraying devices 4 and the extension rods 3 are fixed, the torsion springs 18 and the elastic rods enable the rollers 16 to realize fine adjustment of the fit, and can simultaneously act on the second spraying devices 4, so that the spraying angles of the second spraying devices 4 can be fine adjusted according to the inclination slopes of the side walls of the ridges, and the edge areas of the ridges can be effectively covered.

[0053] For the case that the inclination slopes of the side walls of the ridges change greatly, the driving members 20 need to actively adjust the positions of the first base blocks 17, so that the rollers 16 can keep fitting with the side walls of the ridges. Since the driving members 20 actively adjust the positions of the first base blocks 17, the positions of the extension rods 3 can greatly change, and the positions of the second spraying devices 4 will also greatly change. Therefore, it is usually necessary to adjust the spraying angles of the second spraying devices 4, so that the second spraying devices 4 can accurately cover the edge areas of the ridges. In subsequent operations, the fine adjustment of the fit of the rollers 16 is continued, and the fine adjustment of the spraying angles of the second spraying devices 4 is realized.

[0054] When the slope of the side wall of the ridge changes greatly, the fit of the roller 16 with the side wall of the ridge may deviate from the preset range. For example, when the pressure data collected by any of the pressure sensors at the two ends is lower than the threshold value, it is determined that the fit of the roller 16 with the side wall of the ridge deviates from the preset range. Therefore, the fit of the roller 16 with the side wall of the ridge needs to be restored to the preset range by actively regulating the first base block 17. Due to the soil loss of the side wall of the ridge, the roller 16 may be suspended for a short time in some areas. In order to avoid misjudging that the fit of the roller 16 with the side wall of the ridge deviates from the preset range, a time threshold value can be added. When the pressure data collected by any of the pressure sensors at the two ends is lower than the threshold value and the duration exceeds the time threshold value, it is determined that the fit of the roller 16 with the side wall of the ridge deviates from the preset range.

[0055] The liquid mulch film forming device of the above embodiment is used to form a liquid mulch film, including: when spraying the liquid mulch film on the ridge, first, the second sprayer 4 sprays the liquid mulch film on the edge area of the ridge, and the wind force of the air outlet 9 accelerates the evaporation of the liquid mulch film on the edge area of the ridge to form a film; then, the first sprayer 2 sprays the liquid mulch film on the non-edge area of the ridge, and the liquid mulch film on the non-edge area of the ridge naturally evaporates to form a film.

[0056] This method can effectively process the liquid mulch film on the edge of the ridge, so that it is not easily affected by fluidity, thereby reducing the probability of uneven thickness and even the existence of holes.

[0057] Obviously, the above embodiments are only examples for clear illustration, and are not limitations on the embodiments. Based on the above description, other different forms of changes or variations can be made by those of ordinary skill in the art. Here, it is not necessary and impossible to exhaust all embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A liquid mulch film forming apparatus comprising a carrier, characterised in that, The carrier is provided with a first sprayer, at least two extension rods distributed on both sides of the first sprayer, a second sprayer provided at the end of the extension rod away from the carrier, the second sprayer being located at the front end of the first sprayer, a liquid mulch source provided on the carrier, the first sprayer and the second sprayer being in communication with the liquid mulch source, the first sprayer being used for spraying liquid mulch to the non-edge area of the land ridge, and the second sprayer being used for spraying liquid mulch to the edge area of the land ridge. The side wall of the extension rod is provided with a plurality of air outlet assemblies, and the carrier is provided with an air supply assembly for supplying air to the air outlet assemblies, the air outlet assemblies being used for blowing the spraying area of the second sprayer. The end of the extension rod close to the carrier is in sliding connection with the carrier, and the extension rod is a telescopic pipe composed of a plurality of unit sections. The air supply assembly is a gas pump, the air outlet assembly includes an air outlet, the air outlet is arranged on the unit section, the air outlet is in communication with the output end of the gas pump, and the air outlet direction of the air outlet is from the bottom of the land ridge to the top of the land ridge and from the outside of the land ridge to the inside of the land ridge; the second sprayer includes a pad, the pad is fixedly connected with the extension rod, a nozzle is arranged on the pad, and the nozzle is in communication with the liquid mulch source. The end of the extension rod away from the carrier is provided with a roller, the roller faces the area between the extension rods, a first base block is rotationally connected to one end of the extension rod located on the carrier, a torsional spring is sleeved on the extension rod, one end of the torsional spring is fixedly connected with the extension rod, the other end of the torsional spring is fixedly connected with the first base block, the first base block is in sliding connection with a second base block, the second base block is in sliding connection with the carrier, the position of the second base block relative to the carrier can be locked, a plurality of driving members for driving the first base block to slide are arranged on the second base block, an elastic rod capable of elastically extending and contracting is arranged between the output shaft of the driving member and the first base block, and the two ends of the elastic rod are fixedly connected with the output shaft of the driving member and the first base block respectively, the driving member is used for adjusting the relative position of the first base block and the second base block. A plurality of pressure sensors are arranged on the roller and are uniformly distributed along the axial direction of the roller, and a controller is arranged on the carrier, the controller is used for acquiring pressure data detected by the pressure sensors, determining the fit degree of the roller and the side wall of the land ridge based on the pressure data collected by the pressure sensors, and controlling the driving member to drive the first base block to displace the extension rod when the fit degree deviates from a preset range until the fit degree returns to the preset range.

2. The liquid mulch film forming apparatus according to claim 1, wherein The carrier is a vehicle body, and the vehicle body is provided with a bottom plate with adjustable height.

3. The liquid mulch film forming apparatus according to claim 2, wherein The first sprayer includes a plurality of transversely distributed spraying units, and each spraying unit is provided with a valve in communication.

4. The liquid mulch film forming apparatus according to claim 1, wherein The liquid mulch source includes a storage tank, a liquid mulch storage cavity is arranged in the storage tank, a pump body is arranged in the liquid mulch storage cavity, the first sprayer and the second sprayer are in communication with the output end of the pump body, and an electric stirrer is arranged in the liquid mulch storage cavity.

5. The liquid mulch film forming apparatus according to claim 1, wherein The controller is used for recording the initial position of the first base block relative to the carrier, acquiring the relative position of the first base block and the second base block, and controlling the opening and closing of each spraying unit based on the relative position of the first base block and the second base block.

6. A method of forming a film from a liquid mulch, characterised in that, The liquid mulch film forming device according to any one of claims 1-5, wherein when spraying the liquid mulch film on the ridge, first, the second sprayer sprays the liquid mulch film on the edge area of the ridge, and the air outlet accelerates the evaporation of the liquid mulch film on the edge area of the ridge to form a film; then, the first sprayer sprays the liquid mulch film on the non-edge area of the ridge, and the liquid mulch film on the non-edge area of the ridge evaporates naturally to form a film.

Images