Automatic soil covering type agricultural mulch applicator

Abstract

The invention discloses an automatic soil covering type agricultural film mulching machine which comprises a rack, a driving wheel for supporting is arranged on the portion, close to the tail, of the rack, traction rods extend outwards from the two sides of the rack, suspension frames are arranged at the outer ends of the traction rods, a film roll is installed between the suspension frames on the two sides, and a film mulching part is installed at the lower ends of the traction rods. The telescopic rod is telescopically arranged at the lower end of the traction rod; the ditching wheel is connected to the lower end part of the ditching shaft part, is internally provided with a bulldozing part for ejecting out soil, and is used for taking out the soil on the ridge edge to form continuous pits on the ridge edge; and a film pressing shaft part. Compared with the prior art, the film laminating machine has the advantages that through telescopic adjustment of the ditching shaft part and the film pressing shaft part, the equipment can dynamically adjust the ditching depth and the film pressing force according to the topographic relief, and the dependence of a traditional film laminating machine on the flat ground is overcome; the ditching wheel is provided with continuous grooves in the ridge side, the film pressing wheel enables the edge of a mulching film to be accurately embedded into the grooves, the mulching film is prevented from covering low-lying areas on the ridge side, and it is ensured that rainwater can naturally infiltrate downwards along exposed soil.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural film covering, in particular to an automatic soil covering agricultural film covering machine. Background Art

[0002] An agricultural mulching machine is a type of agricultural machinery specifically used to lay plastic film on the surface of farmland soil. It replaces the traditional manual mulching method, greatly improves the efficiency, quality and consistency of mulching operations, and is a very important mechanical equipment in modern agricultural production.

[0003] At present, the main function of agricultural mulching machines is to open trenches on both sides of the ridge or both sides of the bed for burying the edges of the film, press the edges of the film on both sides into the opened trenches, cover the soil on the edges of the film pressed into the trenches, and fix the film to prevent it from being blown away by the wind.

[0004] However, when working on uneven land such as hilly and mountainous areas, the furrow opener and soil coverer act on the uneven land, causing the furrows opened and the soil covering of the ground film to change, which can easily lead to problems such as film damage, poor adhesion, and loose soil covering. At the same time, in the case of heavy clay soil, the furrow opener, film pressing wheel, and soil coverer will be clogged with clay, resulting in poor coverage or no coverage of the ground film edges. When working in windy weather, there is a certain gap between the laid ground film and the soil coverer. The ground film is laid first and then the soil is covered on the edge of the ground film through the soil coverer. However, after the ground film is laid and before the soil is covered, the strong wind will cause the ground film to deviate, causing the position of the ground film and the position of the soil cover to change, and even some edge positions are difficult to cover with soil. In addition, under the influence of strong winds, the ground film deviates and easily wrinkles, making it difficult to fit with the soil it covers, affecting the growth of subsequent crops.

[0005] In current agricultural mulching machines, the edges of the mulch are typically covered by soil. These edges are typically located on either side of the ridge, so the low-lying areas on either side are also covered by the mulch. If the mulch is intact, water infiltration is difficult. The exposed area in the center of the ridge is the primary rainwater collection and infiltration area, but in water-scarce conditions, water infiltration becomes difficult. Further water shortages can lead to water stress for crops, especially during peak growth. Therefore, in some water-scarce environments, it's necessary to widen the ridges or reduce the area covered by the mulch. Summary of the Invention

[0006] The present invention aims at solving the above problems, and the technical problem to be solved by the present invention is to provide an automatic soil covering agricultural film covering machine.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: an automatic soil covering agricultural film covering machine, comprising a frame, a driving wheel for support near the end of the frame, traction rods extending outward on both sides of the frame, a suspension frame at the outer end of the traction rod, a film roll installed between the two suspension frames, and a film covering part installed at the lower end of the traction rod, the film covering part comprising: A trenching shaft is telescopically arranged at the lower end of the drawbar; The trenching wheel is connected to the lower end of the trenching shaft and has a pusher part inside to push out the soil. It is used to remove the soil from the ridge edge to form a continuous pit on the ridge edge. The film pressing shaft is telescopically arranged at the lower end of the traction rod; The film pressing wheel is connected to the lower end of the film pressing shaft and is used to squeeze the ground film into the pits at the edge of the ridge. The outer side of the film pressing wheel is also provided with a soil covering part for filling the soil into the pits at the edge of the ridge.

[0008] A further preferred solution of the present invention is: a fixed frame 1 is clamped and fixed on the traction rod, two sets of back-facing fixed frames 2 are fixed to the lower end of the fixed frame, and the ditching shaft and the film pressing shaft are adjustably arranged in the two sets of fixed frames 2.

[0009] A further preferred solution of the present invention is: the trenching shaft portion includes a trenching shaft 1, a trenching shaft 2 and a limiting sleeve in the middle, the trenching shaft 1 can be fixed on a sliding fixed frame 2 on one side, the limiting sleeve is connected between the trenching shaft 1 and the trenching shaft 2, the outer side of the limiting sleeve has a longitudinal sliding mouth, and the outer sides of the trenching shaft 1 and the trenching shaft 2 both have fastening bolts extending into the sliding mouth, which are used to adjust the positions of the trenching shaft 1 and the trenching shaft 2 respectively.

[0010] A further preferred embodiment of the present invention is as follows: the grooved wheel comprises a main sheet metal layer, a secondary sheet metal layer, a plurality of spacers and a fixed shaft; The fixed shaft is rotatably installed on the inner side of the trenching shaft 2, and the sheet metal main layer and the sheet metal sub-layer are fixed to the fixed shaft by bolts. The opposite sides of the sheet metal main layer and the sheet metal sub-layer are respectively integrated with a circumferentially distributed partition plate 1 and a partition plate 2, and the corresponding partition plates 1 and 2 are sleeved. There is a bulldozer part between each set of partition plates 1 and 2, which is used to push the soil outward. Several spacers are sleeved on the fixed shaft to control the distance between the sheet metal main layer and the sheet metal sub-layer.

[0011] A further preferred solution of the present invention is that: the outer side surfaces of the sheet metal main layer and the sheet metal auxiliary layer are circumferentially distributed with outward push grooves, and the inner side surfaces are circumferentially distributed with inward push grooves, the outward push grooves axially extending through the groove opening wheel along the fixed shaft, and the inward push grooves extending outwardly along the radial direction of the fixed shaft; The bulldozer section includes a bulldozer rod 1 whose two ends are respectively slidably clamped in the outer pushing grooves of the sheet metal main layer and the sheet metal sub-layer. Two sets of adjustable bulldozer rods 2 are fixed on the bulldozer rod 1, and the two sets of bulldozer rods 2 are respectively embedded in the inner pushing grooves. The bulldozer rod 1 has a circular shaft extending outward at one end; The outer end of the groove opening wheel is also provided with a limit plate fixed on the outer side of the groove opening shaft. The limit plate has a plate groove on the side facing the groove opening wheel, and the circular shaft is clamped in the plate groove. A guide cover is also fixed outside the trenching shaft to cover the unearthed position outside the trenching wheel and guide it to the side.

[0012] A further preferred solution of the present invention is that the disc groove is in the shape of a flat elliptical revolution, and its outline is formed by a semi-ellipse with a major axis and a minor axis, and one end of the major axis is more obtuse than the other end.

[0013] A further preferred solution of the present invention is that the film pressing shaft portion includes a film pressing shaft 1, a film pressing shaft 2 and an elastic component; A limiting sleeve, the same as that of the ditching shaft, is also sleeved between the film pressing shaft 1 and the film pressing shaft 2. The elastic component is sleeved in the limiting sleeve, and the outer sides of the film pressing shaft 1 and the film pressing shaft 2 are provided with fastening bolts extending from the sliding opening of the limiting sleeve. The film pressing wheel is rotatably connected to the inner side of the second film pressing shaft.

[0014] A further preferred solution of the present invention is: the covering part includes a connecting rod 1 connected to the outside of the film pressing shaft 2 by bolts and a connecting rod 2 connected to the outside of the connecting rod 1 by bolts, the angles of the connecting rod 1 and the connecting rod 2 can be adjusted by bolts, and a covering wheel 1 is rotatably installed on the inner side of the end of the connecting rod 1 away from the film pressing shaft 2, and a covering wheel 2 is fixed on the inner side of the end of the connecting rod 2 away from the film pressing shaft 2.

[0015] A further preferred solution of the present invention is that the covering wheel is in the shape of a boss, and its edge is a blade edge.

[0016] A further preferred solution of the present invention is that the ends of the second connecting rods are bent and tilted inward, the second covering wheel fits in with the inclined surface of the second connecting rod to push the soil, and the distance between the second connecting rod and the first connecting rod can be controlled by a nut.

[0017] Compared with the prior art, the advantages of the present invention are: 1. Through the telescopic adjustment of the trenching shaft and the film pressing shaft, the equipment can dynamically adjust the trenching depth and film pressing force according to the undulations of the terrain, overcoming the dependence of traditional film covering machines on a flat ground; the trenching wheel creates continuous grooves on the side of the ridge, and the film pressing wheel accurately embeds the edge of the film into the groove, preventing the film from covering the low-lying areas on the side of the ridge and ensuring that rainwater can naturally infiltrate along the exposed soil.

[0018] 2. The trenching wheel and film pressing wheel can continuously and efficiently trench the clay and squeeze the edge of the film into the trench, stretching the film to a certain extent, reducing wrinkles and deviations. Even in strong winds, the film can reduce wrinkles and deviations, and fit closely with the soil it covers.

[0019] 3. The bulldozer will squeeze the ground film in the furrow, close the furrow and squeeze the soil fixed by the ground film to a certain extent, achieving a certain degree of automatic compaction to avoid separation of the ground film and soil under the influence of the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings only conceptually represent the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 Schematic diagram of the structure of the coating portion of the present invention; Figure 4 Schematic diagram of the trenching shaft and trenching wheel structure of the present invention; Figure 5 This is a schematic diagram of the partial exploded structure of the trenching wheel of the present invention; Figure 6 Another structural schematic diagram of a partially exploded trenching wheel of the present invention; Figure 7 This is a schematic diagram of the structure of the bulldozer section inside the ditch wheel unit of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the partially enlarged structure of the middle part; Figure 9 It is a schematic diagram of the structure of the film pressing shaft and the film pressing wheel of the present invention; Figure 10 This is a schematic diagram of the top view of the film pressing wheel and the soil covering part of the present invention; Figure 11 It is a schematic diagram of the overall top view of the structure of the present invention.

[0022] In the figure: 1, frame; 2, traction rod; 3, suspension frame; 4, film roll; 5, film covering part; 51, fixed frame 1; 52, fixed frame 2; 53, groove shaft; 531, groove shaft 1; 532, groove shaft 2; 533, limit sleeve; 534, slide; 535, fastening bolt; 54, groove wheel; 541, sheet metal main layer; 542, sheet metal sub-layer; 543, outward push groove; 544, partition plate 1; 545, partition plate 2; 546, inner push groove; 5 47. Fixed shaft; 548. Spacer; 55. Film pressing shaft; 551. Film pressing shaft 1; 552. Film pressing shaft 2; 553. Elastic component; 56. Film pressing wheel; 57. Covering part; 571. Connecting rod 1; 572. Connecting rod 2; 573. Covering wheel 1; 574. Covering wheel 2; 58. Limiting plate; 581. Plate groove; 59. Pushing part; 591. Pushing rod 1; 592. Circular shaft; 593. Pushing rod 2; 60. Guide cover; 6. Driving wheel. DETAILED DESCRIPTION

[0023] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0025] This embodiment mainly describes the automatic soil covering agricultural film covering machine. Figures 1-11 Specifically, in the process of laying ground film, agricultural mulching machines are generally used. However, the current problem is that agricultural mulching machines are not suitable for uneven plots such as hilly and mountainous areas, and it is also difficult to use agricultural mulching machines when the soil is heavy. In addition, when the agricultural mulching machine lays the ground film, the low-lying areas on both sides of the ridge will also be covered by the ground film, which makes it difficult for water to seep in when there is a lack of water. In the case of further water shortage, even if the low-lying areas on both sides of the ridge are not completely covered, it is easy for water to seep in. Based on this, an automatic soil-covering agricultural mulching machine is proposed, such as Figure 1-Figure 3 As shown, the machine comprises a frame 1, with a driving wheel 6 for support near the end of the frame 1, traction rods 2 extending outwards on both sides of the frame 1, with hangers 3 at the outer ends of the traction rods 2, and a film roll 4 installed between the hangers 3 on both sides. A film covering part 5 is installed at the lower end of the traction rod 2, and the film covering part 5 includes a groove opening shaft 53, a groove opening wheel 54, a film pressing shaft 55 and a film pressing wheel 56; The trenching shaft 53 is telescopically arranged at the lower end of the traction rod 2; The trenching wheel 54 is connected to the lower end of the trenching shaft 53 and has a pusher 59 inside to push out the soil. It is used to remove the soil from the ridge edge to form a continuous pit at the ridge edge. The film pressing shaft 55 is telescopically arranged at the lower end of the traction rod 2; The film pressing wheel 56 is connected to the lower end of the film pressing shaft 55 and is used to squeeze the ground film into the pit at the edge of the ridge. The outer side of the film pressing wheel 56 also has a soil covering part 57 for filling soil into the pit at the edge of the ridge.

[0026] Specifically, the automatic soil-covering agricultural film mulching machine includes a frame 1 with an adjustable drive wheel 6. The drive wheel 6 is set to different heights according to different situations to adapt to different environmental ground surfaces. The traction rod 2 is integrally arranged on the outside of the frame 1, and the suspension bracket 3 is adjustably set at the outer end of the traction rod 2. A film roll 4 is installed between the two side suspension brackets 3. The film roll 4 is detachable and easy to replace later. The film covering unit 5 is installed at the lower end of the traction rod 2. The film covering unit 5 includes a trenching shaft 53, a trenching wheel 54, a film pressing shaft 55 and a film pressing wheel 56. The film pressing wheel 56 also has a soil covering unit 57 on the outside. The trenching shaft 53 is retractable to adjust the trenching wheel 54 to different heights. The trenching wheel 54 is used to open a long groove on the edge of the ridge. The ground film is squeezed into the long groove by the film pressing wheel 56, and the long groove is blocked and the ground film is squeezed under the action of the covering part 57. The film pressing shaft 55 is also retractable to control the film pressing wheel 56 to squeeze downward. The retractable setting reduces damage to the ground film.

[0027] like Figure 3 As shown, a fixing frame 1 51 is clamped and fixed on the traction rod 2, and two sets of back-facing fixing frames 2 52 are fixed to the lower end of the fixing frame 1 51, and the ditching shaft 53 and the film pressing shaft 55 are adjustably arranged in the two sets of fixing frames 2 52 respectively.

[0028] Specifically, the trenching shaft 53 and the film pressing shaft 55 can be slidably fixed in the two sets of fixed frames 52. The trenching shaft 53 and the film pressing shaft 55 can change their positions and be adjusted according to the position of the film roll 4 to ensure that the ground film is squeezed downward into the side groove of the ridge and squeezed by the film pressing wheel 56.

[0029] like Figure 3 As shown, the trenching shaft portion 53 includes a trenching shaft 1 531, a trenching shaft 2 532 and a limiting sleeve 533 in the middle, which are arranged upper and lower. The trenching shaft 1 531 can be fixed on the sliding fixing frame 2 52 on one side. The limiting sleeve 533 is sleeved between the trenching shaft 1 531 and the trenching shaft 2 532. The outer side of the limiting sleeve 533 has a longitudinal sliding opening 534. The outer sides of the trenching shaft 1 531 and the trenching shaft 2 532 both have fastening bolts 535 extending into the sliding opening 534, which are used to adjust the positions of the trenching shaft 1 531 and the trenching shaft 2 532 respectively.

[0030] Specifically, the trenching shaft 53 can change its length according to the degree of engagement of trenching shaft 1 531 and trenching shaft 2 532 in the limiting sleeve 533, and is fixed by tightening bolts 535. When the trenching shaft 53 is squeezed, the trenching shaft 53 will not be compressed, so that the trenching wheel 54 is embedded in the soil.

[0031] like Figure 3-Figure 8 As shown, the grooved wheel 54 includes a sheet metal main layer 541, a sheet metal secondary layer 542, a plurality of spacers 548 and a fixed shaft 547; The fixed shaft 547 is rotatably installed on the inner side of the trenching shaft 2 532, and the sheet metal main layer 541 and the sheet metal sub-layer 542 are fixed to the fixed shaft 547 by bolts. The sheet metal main layer 541 and the sheet metal sub-layer 542 have a circularly distributed partition plate 1 544 and a partition plate 2 545 on opposite sides respectively. The corresponding partition plates 1 544 and partition plates 2 545 are sleeved, and each set of partition plates 1 544 and partition plates 2 545 has a bulldozer part 59 between them for pushing the soil outward. Several spacers 548 are sleeved on the fixed shaft 547 for controlling the distance between the sheet metal main layer 541 and the sheet metal sub-layer 542.

[0032] Specifically, the ditching wheel 54 is divided into two layers: a main sheet metal layer 541 and a secondary sheet metal layer 542. During the rotation, the soil is embedded between the main sheet metal layer 541 and the secondary sheet metal layer 542, and under the action of the partition plate 1 544 and the partition plate 2 545, multiple chambers are separated between the main sheet metal layer 541 and the secondary sheet metal layer 542. When embedded downward into the soil, the chamber can be filled to a certain extent, and the soil can be brought up and discharged. Based on this, the ridge edge has a long strip groove for inlaying the edge of the ground film.

[0033] It should be noted that several spacers 548 are sleeved onto the fixed shaft 547, which uses bolts to hold the main sheet metal layer 541 and the secondary sheet metal layer 542 in place. Several spacers 548 are clamped between the main sheet metal layer 541 and the secondary sheet metal layer 542 for support. The number of spacers 548 can be changed to adjust the spacing between the main sheet metal layer 541 and the secondary sheet metal layer 542 to ensure that the soil is clamped between the main sheet metal layer 541 and the secondary sheet metal layer 542. It should be noted that the first and second partition plates 544 and 545 are sleeved and can be deformed to ensure the formation of the chamber.

[0034] like Figure 6-Figure 7 As shown, the outer side surfaces of the sheet metal main layer 541 and the sheet metal auxiliary layer 542 are both circumferentially distributed with outward thrust grooves 543, and the inner side surfaces are both circumferentially distributed with inward thrust grooves 546. The outward thrust grooves 543 axially penetrate the groove opening wheel 54 along the fixed shaft 547, and the inward thrust grooves 546 penetrate outward radially along the fixed shaft 547. The bulldozer unit 59 includes a bulldozer rod 591 with two ends slidably engaged in outer push grooves 543 of the sheet metal main layer 541 and the sheet metal secondary layer 542. Two sets of adjustable bulldozer rods 593 are fixed to the bulldozer rod 591. The two sets of bulldozer rods 593 are respectively embedded in the inner push grooves 546. One end of the bulldozer rod 591 has an integral circular shaft 592 extending outward. The outer end of the groove wheel 54 also has a limit plate 58 fixed to the outer side of the groove shaft 2 532. The limit plate 58 has a plate groove 581 on the side facing the groove wheel 54, and the circular shaft 592 is clamped in the plate groove 581. A guide cover 60 is also fixed outside the trenching shaft 532 to cover the unearthed position outside the trenching wheel 54 and guide it to the side.

[0035] Specifically, the sheet metal main layer 541 and the sheet metal sub-layer 542 have an outward push groove 543 on the outward side and an inner push groove 546 on the inward side, which is used to limit the bulldozer 59. It should be noted that the bulldozer 59 includes a bulldozer rod 1 591 and a bulldozer rod 2 593. Each group of bulldozer rods 1 591 has two groups of vertically arranged bulldozer rods 2 593. The two groups of vertically arranged bulldozer rods 2 593 can be replaced on the bulldozer rod 1 591 to adapt to the different spacing between the sheet metal main layer 541 and the sheet metal sub-layer 542. The bulldozer rod 1 591 and the bulldozer rod 2 593 are limited to the outer push groove 543 and the inner push groove 546. 6, when the trenching wheel 54 rotates, the bulldozer 59 inside it also rotates and moves along the disc groove 581 through the circular shaft 592, so that the bulldozer 59 slides along the outer pushing groove 543 and the inner pushing groove 546, changing the position of the bulldozer 59. Based on this, when the bulldozer 59 approaches the inner end of the trenching wheel 54, the soil can fill the trenching wheel 54. When it approaches the outer end, the bulldozer 59 pushes the soil outward. It should be noted that the position of the disc groove 581 is fixed, so the direction of the bulldozer 59 moving outward and the direction of its reset are also fixed. The trenching wheel 54 brings up the soil, and the brought up soil is squeezed out by the bulldozer 59.

[0036] like Figure 6 As shown, the disc groove 581 is in the shape of a flat elliptical rotation, and its outline is formed by a semi-ellipse with a major axis and a minor axis, and one end of the major axis is more obtuse than the other end.

[0037] Specifically, the position of the disc groove 581 is fixed and is in the shape of a flat egg. When the trenching wheel 54 rotates, the bulldozer 59 moves along the shape of the disc groove 581, pushing the soil outward in a reciprocating manner.

[0038] like Figure 9 As shown, the film pressing shaft portion 55 includes a film pressing shaft 1 551 , a film pressing shaft 2 552 and an elastic component 553 ; A limiting sleeve 533, similar to the groove opening shaft 53, is also sleeved between the first and second film pressing shafts 551, 552. The elastic component 553 is sleeved within the limiting sleeve 533. The outer sides of the first and second film pressing shafts 551, 552 are provided with fastening bolts 535 extending from the sliding openings 534 of the limiting sleeves 533. The laminating wheel 56 is rotatably connected to the inner side of the laminating shaft 2 552 .

[0039] Specifically, the film pressing shaft 55 has an elastic expansion and contraction function and can be in a fixed state. In the fixed state, the expansion and contraction length can be adjusted. The positions of the first and second film pressing shafts 551 and 552 can be adjusted within the limiting sleeve 533, and the adjustment is performed by the fastening bolts 535 of the first and second film pressing shafts 551 and 552. It should be noted that the elastic component 553 is a spring, which is limited within the limiting sleeve 533, and the two ends are against the first and second film pressing shafts 551 and 552, so that the film pressing shaft 55 supports the film pressing wheel 56 at the lower end and has the function of expanding and contracting up and down, which is suitable for different terrains and reduces the damage rate of the squeezed film.

[0040] like Figure 3 、 Figure 9 and Figure 11 As shown, the covering part 57 includes a connecting rod 1 571 connected to the outside of the film pressing shaft 2 552 by bolts and a connecting rod 2 572 connected to the outside of the connecting rod 1 571 by bolts. The angles of the connecting rod 1 571 and the connecting rod 2 572 can be adjusted by bolts. A covering wheel 1 573 is rotatably installed on the inner side of the connecting rod 1 571 away from the end of the film pressing shaft 2 552, and a covering wheel 2 574 is fixed on the inner side of the connecting rod 2 572 away from the end of the film pressing shaft 2 552.

[0041] Specifically, the covering part 57 includes a covering wheel 1 573 and a covering wheel 2 574, wherein the covering wheel 1 573 is used to squeeze the soil and block the ridge side grooves opened by the furrowing wheel 54. The soil squeezes the ridge side grooves and the ground film, thereby firmly fixing the edge of the ground film. Secondly, in order to tighten it further, the covering wheel 2 574 covers the soil to the edge of the ground film again.

[0042] like Figure 10 As shown, the covering wheel 573 is in the shape of a boss, and its edge is a blade edge; Specifically, the covering wheel 573 is in the shape of a boss. When it moves along the ground, the covering wheel 573 cuts into the ground, and the protruding side squeezes the soil during the movement, blocking the side groove of the ridge.

[0043] like Figure 10As shown, the end of the second connecting rod 572 is bent and tilted inward, and the second covering wheel 574 is in contact with the inclined surface of the second connecting rod 572 to push the soil. The distance between the second connecting rod 572 and the first connecting rod 571 can be controlled by a nut.

[0044] Specifically, the covering wheel 2 574 is also arranged in an inclined shape. When moving, the covering wheel 2 574 pushes the soil, which is the same as the covering mechanism of the existing agricultural mulching machine, and further covers the edge of the film with soil. At the same time, the connecting rod 2 572 can control the distance from the connecting rod 1 571 by the position of the nut rotation, adjust the position of the covering soil, and fix it with bolts. The nuts on both sides clamp the connecting rod 2 572, and the connecting rod 2 572 is sleeved on the bolts. When the positions of the nuts on both sides change, the position of the connecting rod 2 572 also changes.

[0045] Working principle: Figure 1 As shown, the film roll 4 is supported by the suspension frames 3 on both sides, and the film roll 4 is driven along the path to gradually release the ground film during the movement of the frame 1. Before the ground film is released, the ground on both sides of the ridge needs to be grooved. The grooved device in this application is a grooved wheel 54. Under the action of its own gravity and the gravity of the clamping personnel, as well as the adjustment of the grooved shaft 53, the grooved wheel 54 is located in a suitable position. As the frame 1 runs, the grooved wheel 54 is squeezed with the ground on both sides of the ridge, so that the main sheet metal layer 541 and the sub-sheet metal layer 542 extend into the soil, and the soil is squeezed between the main sheet metal layer 541 and the sub-sheet metal layer 542, as well as between the two groups of partition plates 1 544 and the two groups of partition plates 2 545, so that the soil is squeezed inside and remains inside. Then, as the grooved wheel 54 rotates, the soil is brought out upward, so that strip-shaped extended grooves are formed on both sides of the ridge. The film pressing shaft 55 connected to the film pressing wheel 56 can also be adjusted in length in the vertical direction, so that the film pressing wheel 56 is squeezed into the grooves on both sides of the ridge, and the ground film is squeezed into the grooves on both sides of the ridge. This prevents the ground film from covering the low-lying areas on both sides of the ridge, ensuring that the low-lying areas on both sides of the ridge can seep downward. Figure 2 As shown, when the ground film is unrolled from the film roll 4 and laid on the ridge, the position near the edge is squeezed by the film pressing wheel 56 into the strip-shaped grooves extending on both sides of the ridge, stretching the ground film to a certain extent, reducing wrinkles and avoiding deviation.

[0046] It should be noted that when laying the ground film, it is necessary to ensure that the soil has a certain degree of moisture. Moist soil is easy to form a ball under the action of squeezing. Therefore, it is easy to bring up the soil under the squeezing of the trenching wheel 54. Then, as the trenching wheel 54 rotates, the circular shaft 592 moves in the disc groove 581, so that the bulldozer 59 is located in different directions of the trenching wheel 54. When the bulldozer 59 is located in different directions, its position is different, such as Figure 6As shown, when the furrowing wheel 54 squeezes the soil, the pusher portion 59 is located at the innermost end. When it rotates to near the upper end, the pusher portion 59 pushes the soil outward, causing the soil to move along the guide cover 60 and move to the edge of the ridge side groove, ensuring that the grooves on both sides of the ridge will not be blocked again. It should also be noted that the pusher rod 1 591 moves along the outer push groove 543, and the pusher rod 2 593 moves along the inner push groove 546, pushing the soil outward. The pusher rod 1 591 and the pusher rod 2 593 are U-shaped, pushing the blocky squeezed soil outward to a certain extent. Even if there is any residue, it will be poured into the direction of movement of the furrowing wheel 54 as the furrowing wheel 54 rotates, and will not move directly into the ridge groove, but will be squeezed into the furrowing wheel 54 again. Based on this, it should also be noted that furrowing is easier in the case of clay, achieving an effect that cannot be achieved by existing film covering machines.

[0047] After the mulch film is squeezed into the groove on the side of the ridge by the mulch pressing wheel 56, the rear covering wheel 573 directly cuts into the soil near the mulch pressing wheel 56, and because of its boss shape, it pushes the soil, squeezes the groove on the side of the ridge to a certain extent to close, and squeezes the edge of the mulch film located in the groove on the side of the ridge to form a covering effect. It should be noted that the covering of the mulch film here is to push the soil to cover the edge of the mulch film, that is, the edge of the mulch film is embedded in the soil. Compared with directly covering the edge of the mulch film with loose soil, this method is not easy to make the mulch film blown away by strong winds. It should be noted that when the film pressing wheel 56 squeezes the mulch film into the ridge side groove, it will squeeze the mulch film and the soil in the ridge side groove, and will also be embedded in the soil to a certain extent. At the same time, after the film pressing wheel 56 rotates to confine the mulch film in the ridge side groove, the covering wheel 1 573 immediately squeezes the soil to cover it. When the edge of the mulch film is located in the ridge side groove, it is not easy to be blown away by strong winds. The squeezing of the soil makes it even more difficult for the mulch film to be blown away by strong winds. Subsequently, the covering wheel 2 574 pushes the soil outside the ridge side groove to cover the soil again.

[0048] Based on the above, it should be noted that the film pressing shaft 55 can adjust the telescopic state, and the fastening bolt 535 can be adjusted so that the film pressing shaft 1 551 and the film pressing shaft 2 552 can be in an elastic state, flexibly squeezing the ground film. In the event of undulations, telescopic changes can be achieved to reduce damage to the ground film.

[0049] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0050] The above is a detailed introduction to the automatic soil-covering agricultural film covering machine provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic soil covering agricultural film covering machine, comprising a frame, a driving wheel for support near the end of the frame, traction rods extending outwards on both sides of the frame, a suspension frame at the outer end of the traction rod, and a film roll installed between the suspension frames on both sides, characterized in that: The lower end of the traction rod is equipped with a film covering part, which includes: A trenching shaft is telescopically arranged at the lower end of the drawbar; The trenching wheel is connected to the lower end of the trenching shaft and has a pusher part inside to push out the soil. It is used to remove the soil from the ridge edge to form a continuous pit on the ridge edge. The film pressing shaft is telescopically arranged at the lower end of the traction rod; The film pressing wheel is connected to the lower end of the film pressing shaft and is used to squeeze the ground film into the pits at the edge of the ridge. The outer side of the film pressing wheel is also provided with a soil covering part for filling the soil into the pits at the edge of the ridge.

2. The automatic soil covering agricultural film covering machine according to claim 1, characterized in that: A fixing frame 1 is clamped and fixed on the traction rod, and two groups of back-facing fixing frames 2 are fixed on the lower end of the fixing frame. The ditching shaft and the film pressing shaft are adjustably arranged in the two groups of fixing frames 2.

3. The automatic soil covering agricultural film covering machine according to claim 2, characterized in that: The trenching shaft portion includes a trenching shaft 1, a trenching shaft 2 and a limiting sleeve in the middle, the trenching shaft 1 can be fixed on a sliding fixed frame 2 on one side, the limiting sleeve is connected between the trenching shaft 1 and the trenching shaft 2, and the outer side of the limiting sleeve has a longitudinal sliding mouth, and the outer sides of the trenching shaft 1 and the trenching shaft 2 are provided with fastening bolts extending into the sliding mouth, which are respectively used to adjust the positions of the trenching shaft 1 and the trenching shaft 2.

4. The automatic soil covering agricultural film covering machine according to claim 3, characterized in that: The grooved wheel includes a sheet metal main layer, a sheet metal auxiliary layer, several spacers and a fixed shaft; The fixed shaft is rotatably installed on the inner side of the trenching shaft 2, and the sheet metal main layer and the sheet metal sub-layer are fixed to the fixed shaft by bolts. The opposite sides of the sheet metal main layer and the sheet metal sub-layer are respectively integrated with a circumferentially distributed partition plate 1 and a partition plate 2, and the corresponding partition plates 1 and 2 are sleeved. There is a bulldozer part between each set of partition plates 1 and 2, which is used to push the soil outward. Several spacers are sleeved on the fixed shaft to control the distance between the sheet metal main layer and the sheet metal sub-layer.

5. The automatic soil covering agricultural film covering machine according to claim 4, characterized in that: The outer side surfaces of the sheet metal main layer and the sheet metal auxiliary layer are circumferentially distributed with outward push grooves, and the inner side surfaces are circumferentially distributed with inward push grooves. The outward push grooves penetrate the groove opening wheel along the axial direction of the fixed shaft, and the inward push grooves penetrate outward along the radial direction of the fixed shaft. The bulldozer section includes a bulldozer rod 1 whose two ends are respectively slidably clamped in the outer pushing grooves of the sheet metal main layer and the sheet metal sub-layer. Two sets of adjustable bulldozer rods 2 are fixed on the bulldozer rod 1, and the two sets of bulldozer rods 2 are respectively embedded in the inner pushing grooves. The bulldozer rod 1 has a circular shaft extending outward at one end; The outer end of the groove opening wheel is also provided with a limit plate fixed on the outer side of the groove opening shaft. The limit plate has a plate groove on the side facing the groove opening wheel, and the circular shaft is clamped in the plate groove. A guide cover is also fixed outside the trenching shaft to cover the unearthed position outside the trenching wheel and guide it to the side.

6. The automatic soil covering agricultural film covering machine according to claim 5, characterized in that: The disc groove is in the shape of a flat elliptical rotation, and its outline is formed by a semi-ellipse with a major axis and a minor axis, and one end of the major axis is more obtuse than the other end.

7. The automatic soil covering agricultural film covering machine according to claim 2, characterized in that: The film pressing shaft portion includes a film pressing shaft 1, a film pressing shaft 2 and an elastic component; A limiting sleeve, the same as that of the ditching shaft, is also sleeved between the film pressing shaft 1 and the film pressing shaft 2. The elastic component is sleeved in the limiting sleeve, and the outer sides of the film pressing shaft 1 and the film pressing shaft 2 are provided with fastening bolts extending from the sliding opening of the limiting sleeve. The film pressing wheel is rotatably connected to the inner side of the second film pressing shaft.

8. The automatic soil covering agricultural film covering machine according to claim 7, characterized in that: The covering part includes a connecting rod 1 connected to the outside of the film pressing shaft 2 by bolts and a connecting rod 2 connected to the outside of the connecting rod 1 by bolts. The angles of the connecting rod 1 and the connecting rod 2 can be adjusted by bolts. A covering wheel 1 is rotatably installed on the inner side of the end of the connecting rod 1 away from the film pressing shaft 2, and a covering wheel 2 is fixed on the inner side of the end of the connecting rod 2 away from the film pressing shaft 2.

9. The automatic soil covering agricultural film covering machine according to claim 7, characterized in that: The covering wheel is in the shape of a boss, and its edge is a blade edge.

10. The automatic soil covering agricultural film covering machine according to claim 7, characterized in that: The end of the second connecting rod is bent and tilted inward, and the second covering wheel fits the inclined surface of the second connecting rod to push the soil. The distance between the second connecting rod and the first connecting rod can be controlled by a nut.

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