Moisture digging, ridging and film mulching device

Abstract

The utility model provides a furrow digging, ridging and film laying device. The furrow digging, ridging and film laying device is characterized by comprising a rack, a lifting mechanism, a mulching film mounting frame, a connecting rod transmission mechanism, a ridging assembly, a film cutting assembly and a film pressing assembly, wherein the mulching film mounting frame is arranged at the front part of the rack; the mulching film mounting frame is connected with the film cutting assembly and the film pressing assembly through the connecting rod transmission mechanism, wherein the film cutting assembly and the film pressing assembly are arranged on the rear portion of the machine frame. And the ridging assembly is arranged on the mulching film mounting frame. When the machine frame moves in the field or the land, furrowing and ridging are conducted in the land through the ridging assembly, meanwhile, mulching films are laid on the ridges from the mulching film mounting frame, and then cutting and pressing of the mulching films are achieved under the cooperation of the film cutting assembly and the film pressing assembly; the problems of low efficiency, high labor intensity, heavy workload and the like caused by a previous manual mode of furrow digging, ridging and film mulching are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film laying device, in particular to a soil preparation and ridge forming film laying device, belongs to the technical field of agricultural machinery design and manufacture. BACKGROUND

[0002] The mulching film refers to a measure of covering the ground surface with agricultural plastic film. It can reduce the impact of raindrops, prevent erosion and crust formation; effectively reduce soil water evaporation, retain soil moisture after rain, promote crop water absorption and growth, and improve soil water use efficiency; keep the soil temperature and humidity suitable, slow down the decrease of ground temperature and prolong the duration, improve the decomposition of fertilizer and improve soil fertility. The mulching film has low cost, convenient use and large yield increase, and is a common measure that can prevent water and soil loss and improve crop yield.

[0003] The commonly used mulching film mainly includes disposable mulching film and reusable mulching film. The disposable mulching film is difficult to achieve perfect coverage because it needs to be cut on the ground before use. Although they are relatively cheap, they are generally suitable for planting a season of crops or trial planting, but long-term use will increase environmental pollution and cost, which is not conducive to environmental protection. The value of reusable mulching film is much higher than that of disposable mulching film, and it is also different according to the service life. The production materials of the mulching film mainly include PVC, PE, TPU and the like. The PE mulching film is mainly made of polyethylene material and has good safety performance, and is relatively common.

[0004] The existing mulching film needs to be manually dug and ridged on the ground before laying, and then laid on the ridge, and finally pressed with soil on both sides to prevent the mulching film from being blown away by the wind. Such a film laying method not only has low efficiency, large labor intensity and heavy work burden, but also consumes a large amount of human resources. Therefore, it is necessary to improve the existing technology. UTILITY MODEL CONTENTS

[0005] In order to solve the problems of low efficiency, large labor intensity and heavy work burden caused by manual soil preparation and ridge forming and mulching film laying, the utility model provides a soil preparation and ridge forming film laying device.

[0006] The utility model is completed through the following technical scheme: a soil preparation and ridge forming film laying device, characterized by comprising a rack, a lifting mechanism, a mulching film mounting rack, a connecting rod transmission mechanism, a ridge forming assembly, a film cutting assembly and a film pressing assembly.

[0007] The mulching film mounting rack is arranged at the front of the rack and is used to drive the mulching film mounting rack to rise or fall.

[0008] The film mounting frame is connected with the film cutting assembly and the film pressing assembly arranged at the rear part of the frame through the connecting rod transmission mechanism, so that the film cutting assembly and the film pressing assembly are driven by the connecting rod transmission mechanism to ascend or descend together with the film mounting frame.

[0009] The ridging assembly is arranged on the film mounting frame.

[0010] When the frame moves in the field, the ridging assembly can open the soil and form ridges, and the film is laid on the ridges from the film mounting frame, and then the film is cut and pressed by the film cutting assembly and the film pressing assembly, so that the problems of low efficiency, high labor intensity and heavy workload caused by manual opening of the soil, forming of the ridges and laying of the film are effectively solved.

[0011] Further, the film mounting frame comprises a horizontal beam arranged longitudinally, left and right film fixing frames movably arranged at both ends of the horizontal beam, the left and right film fixing frames comprising left and right sleeves movably arranged at both ends of the horizontal beam, and transverse short rods with front ends connected with the left and right sleeves and rear ends horizontally extending backward, short roller shafts parallel to the horizontal beam being arranged at the rear ends of the two transverse short rods, and locking screws matched with the horizontal beam being arranged on the left and right sleeves; the left and right sleeves are horizontally adjusted on the horizontal beam to facilitate the insertion of the short roller shafts into the sleeves from both ends of the film roller and support the film roller, so that the film roller is installed, and the film roller with a corresponding width can be replaced in time according to needs, so as to adapt to the laying of different types of film.

[0012] Further, the lifting mechanism comprises a power cylinder arranged vertically on the frame, and a vertical limiting sleeve arranged beside the power cylinder, the cylinder base of the power cylinder being connected with the frame, the end of the piston rod being connected with a horizontal sleeve arranged in the middle of the horizontal beam, the vertical limiting sleeve being connected with the frame, a guide rod being arranged in the vertical limiting sleeve, the lower end of the guide rod being connected with the horizontal sleeve, so that the film mounting frame is driven by the power cylinder to ascend or descend, the vertical limiting sleeve plays a role of limiting and supporting the film mounting frame, and the guide rod in the vertical limiting sleeve is used for lifting and guiding.

[0013] Further, the ridging assembly comprises a middle vertical sleeve arranged in front of and connected to the horizontal sleeve of the mulch mounting frame, a middle vertical column movably sleeved in the vertical sleeve, and a locking screw arranged on the vertical sleeve for locking the middle vertical column, the lower end of the middle vertical column is provided with a longitudinal horizontal rod, the two ends of the longitudinal horizontal rod are symmetrically provided with left and right ploughs which are spread apart in an eight-shaped manner downward, and the left and right short sleeves are respectively arranged on the left and right side sleeves of the mulch mounting frame, the left and right short sleeves are respectively provided with locking screws for limiting the left and right short sleeves, the left and right short sleeves are respectively connected with corresponding left and right vertical columns, the lower ends of the left and right vertical columns are respectively provided with left and right ridging wheels which are spread apart in an eight-shaped manner outward through an axle, so that when the ridging assembly and the mulch mounting frame are lowered to the ground by the lifting mechanism, the left and right ridging wheels and the left and right ploughs cooperate to complete the opening and ridging from both sides while moving in the field, and form a planting trench between the left and right ploughs, and lay mulch on the ridges; when not in use, the ridging assembly is lifted to leave the ground along with the lifting mechanism.

[0014] Further, the connecting rod transmission mechanism comprises left and right upper connecting rods hingedly connected to the frame at the front ends, and left and right lower connecting rods hingedly connected to the two ends of a first longitudinal horizontal connecting rod arranged below the frame at the front ends, the bottom of the first longitudinal horizontal connecting rod is sleeved with the upper end of the middle vertical column through a vertical sleeve, the rear ends of the left and right upper connecting rods and the rear ends of the left and right lower connecting rods are hingedly connected through a hinge shaft, and the hinge shaft is also hingedly connected with the front ends of left and right transverse horizontal connecting rods, the rear ends of the left and right transverse horizontal connecting rods are hingedly connected with the lower ends of short rods, the upper ends of the short rods are hingedly connected with swing arms, the front ends of the swing arms are hingedly connected to the frame through a hinge shaft, and the rear ends are provided with a second longitudinal horizontal connecting rod for connecting the film cutting assembly and the film pressing assembly, so that the film cutting assembly and the film pressing assembly can also be lowered by the connecting rod transmission mechanism to complete the cutting and pressing of the mulch on the planting trench along with the ridging assembly, or be lifted to stop working.

[0015] Further, the film cutting assembly comprises upper and lower inclined arms arranged at intervals, the upper and lower inclined arms are hingedly connected to the middle part of the frame at the upper ends through hinge shafts, and the lower ends are inclined and extended downward and rearward of the middle part of the frame, the assembly further comprises a connecting rod with the upper end hingedly connected to the middle part of the upper inclined arm and the lower end hingedly connected to the middle part of the lower inclined arm, and a cutting knife wheel movably arranged at the extended end of the lower inclined arm, the cutting knife wheel is movably connected with the extended end of the lower inclined arm through an axle, and is located on the center line between the left and right ploughs of the ridging assembly, so that the mulch laid on the planting trench is cut by the cutting knife wheel to facilitate planting in the planting trench, and the upper inclined arm can drive the lower inclined arm to swing up and down through the connecting rod under the pull of the swing arm, so that the film cutting assembly rises and falls along with the ridging assembly.

[0016] Further, the film pressing assembly comprises a door-shaped support formed by a top beam and two side columns, a connecting plate arranged at the upper part of the door-shaped support and used for connecting the two side columns, and film pressing wheels symmetrically arranged at the lower ends of the two side columns, the film pressing wheels being located on both sides of the cutting knife wheel, the ends of the top beam of the door-shaped support are respectively hinged to the shaft sleeves in the middle of the second longitudinal horizontal connecting rods through hinge shafts, the two side columns are inclined downward and forward and are respectively hinged to the lower ends of the corresponding upward inclined arms through short pins arranged at the two ends of the front surface of the connecting plate, the middle part of the back surface of the connecting plate is connected with the upper end of an L-shaped rod, the lower end of the L-shaped rod is bent forward and is provided with a plowshare, the plowshare is located in the middle of the two film pressing wheels, and the tip of the plowshare is opposite to the cutting knife wheel, so that the film pressing wheels can press the earth film on both sides of the planting ditch, and the cutting knife wheel can smoothly cut the earth film in the middle of the planting ditch, and the inside of the cut earth film is pressed and fixed by the soil turned up by the plowshare 28.

[0017] Further, the film pressing assembly further comprises left and right horizontal sleeves respectively arranged at the two ends of the second longitudinal horizontal connecting rod, the left and right horizontal sleeves are provided with locking screws for locking, the left and right horizontal sleeves are respectively connected with corresponding left and right vertical sleeves, left and right vertical lifting rods are movably sleeved in the left and right vertical sleeves, the lower ends of the left and right vertical lifting rods are respectively provided with outward eight-shaped deflection turning wheels, so that the turning wheels can turn up the soil to press and fix the outside of the cut earth film.

[0018] The machine frame is mounted on an existing diesel-powered machine, such as a ploughing tractor, so as to drive the opening and furrowing and film laying device to move in the field by the diesel-powered machine.

[0019] The utility model has the following advantages and effects: by the above scheme, the furrowing and ridging is realized on the ground by the ridging assembly, then the earth film is laid on the earth ridge from the earth film mounting frame under the driving of the machine frame, and the cutting and pressing of the earth film are realized under the cooperation of the film cutting assembly and the film pressing assembly. The problems of low efficiency, large labor amount and heavy work burden caused by the manual opening, furrowing and film laying are effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by the drawings without any creative labor for the ordinary skilled in the art.

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 It is Figure 1 the longitudinal sectional view;

[0023] Figure 3 It isFigure 1 a left view of

[0024] Figure 4 is Figure 3 a partial top view of

[0025] Figure 5 is Figure 1 a right view of DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. EMBODIMENT

[0027] The soil preparation and ridging and mulching device provided by the utility model comprises a rack 9, a lifting mechanism, a mulching film mounting rack, a connecting rod transmission mechanism, a ridging assembly, a film cutting assembly and a film pressing assembly. Wherein:

[0028] The mulching film mounting rack is arranged at the front part of the rack 9 through the lifting mechanism and is used for driving the mulching film mounting rack to ascend or descend;

[0029] The mulching film mounting rack is connected with the film cutting assembly and the film pressing assembly arranged at the rear part of the rack 9 through the connecting rod transmission mechanism, so that the film cutting assembly and the film pressing assembly ascend or descend together with the mulching film mounting rack under the driving of the connecting rod transmission mechanism;

[0030] The ridging assembly is arranged on the mulching film mounting rack;

[0031] So that the rack 9 moves in the field or the ground, the soil is prepared and the ridges are formed in the ground through the ridging assembly, and the mulching film is laid on the ridges from the mulching film mounting rack, then the film cutting and pressing are realized under the cooperation of the film cutting assembly and the film pressing assembly, effectively solving the problems of low efficiency, high labor intensity and heavy work burden caused by the artificial soil preparation, ridging and mulching.

[0032] As an embodiment, the mulching film mounting rack comprises a horizontal beam 3 arranged longitudinally, left and right mulching film fixing racks 4 movably arranged at both ends of the horizontal beam 3, the left and right mulching film fixing racks 4 comprising left and right side sleeves 31 movably sleeved at both ends of the horizontal beam 3, and transverse short rods 37 horizontally extended at the rear end and connected with the left and right side sleeves 31, short roller shafts 38 parallel to the horizontal beam 3 are arranged at the rear end of the two transverse short rods 37, and locking screws matched with the horizontal beam 3 are arranged on the left and right side sleeves 31, such as Figure 1 ,Figure 3 、 Figure 4 , for horizontal adjustment of the left and right side sleeves 31 in the horizontal beam 3 position, to facilitate the short roller shaft 38 from the ground film roller both ends inserted into it and support the ground film roller, to achieve the installation of the ground film roller, and can be replaced according to the need of the corresponding width of the ground film roller, adapt to different types of ground film laying.

[0033] As an embodiment, the lifting mechanism includes a power cylinder 7 vertically arranged on the rack 9, and a vertical limiting sleeve 6 arranged beside the power cylinder 7, the cylinder seat of the power cylinder 6 is connected with the rack 9, and the lower end of the piston rod is connected with the horizontal sleeve 33 sleeved in the middle of the horizontal beam 3, the vertical limiting sleeve 6 is connected with the rack 9, a guide rod is arranged in the vertical limiting sleeve 6, the lower end of the guide rod extends out and is connected with the horizontal sleeve 33, and the vertical limiting sleeve 6 is connected with the horizontal sleeve 33. Figure 3 , so that the ground film mounting frame is lifted or lowered by the power cylinder 7, the vertical limiting sleeve 6 plays a role in limiting and supporting the ground film mounting frame, and the lifting guide is realized through the guide rod in the vertical limiting sleeve 6.

[0034] As an embodiment, the ridging assembly includes a middle vertical sleeve 25 arranged in front of and connected with the horizontal sleeve 33 of the ground film mounting frame, a middle vertical column 26 movably sleeved in the vertical sleeve 25, and a locking screw arranged on the vertical sleeve 25 and used for locking the middle vertical column 26, the lower end of the middle vertical column 26 is provided with a longitudinal horizontal rod 24, the longitudinal horizontal rod 24 is symmetrically provided with left and right ploughs 1 which are downwardly spread in an eight-character shape at both ends, and the left and right short sleeves 32 are respectively arranged on the left and right side sleeves 31 of the ground film mounting frame, the left and right short sleeves 32 are respectively provided with locking screws used for limiting the left and right short sleeves 32, the left and right short sleeves 32 are respectively connected with corresponding left and right vertical columns 36, and the lower ends of the left and right vertical columns 36 are respectively provided with left and right ridging wheels 2 which are outwardly spread in an eight-character shape through an axle, Figure 3 , so that after the ridging assembly and the ground film mounting frame are lowered to the ground by the lifting mechanism, the left and right ridging wheels 2 and the left and right ploughs 1 are matched to respectively complete the ploughing and ridging from both sides while the rack 9 moves in the field or the ground, a planting ditch is formed between the left and right ploughs 1, and the ground film is laid on the ploughed ridge; when not in use, the lifting mechanism is raised to leave the ground.

[0035] As an embodiment, the connecting rod transmission mechanism comprises left and right upper connecting rods 8 hinged at the front end to the frame 9, and left and right lower connecting rods 5 hinged at the front end to both ends of a first longitudinal horizontal connecting rod 34 arranged below the frame 9, the bottom of the first longitudinal horizontal connecting rod 34 being sleeved at the upper end to the middle vertical column 26 through a vertical sleeve 35, the rear end of the left and right upper connecting rods 8 and the rear end of the left and right lower connecting rods 5 being hinged through a hinge shaft, and the hinge shaft being further hinged to the front end of left and right transverse horizontal connecting rods 10 respectively, the rear end of the left and right transverse horizontal connecting rods 10 being hinged to the lower end of a short rod 11, the upper end of the short rod 11 being hinged to a swing arm 12, the front end of the swing arm 12 being hinged to the rear part of the frame 9 through a hinge shaft, and the rear end being provided with a second longitudinal horizontal connecting rod 15 for connecting the film cutting assembly and the film pressing assembly, as shown in Figure 1 so that the film cutting assembly and the film pressing assembly can also be lowered together with the ridging assembly by the connecting rod transmission mechanism to complete the cutting and pressing of the film on the planting trench, or be raised to stop working.

[0036] As an embodiment, the film cutting assembly comprises upper and lower inclined arms 13, 23 arranged at intervals, the upper and lower inclined arms 13, 23 being hinged at the upper end to the middle part of the frame 9 through a hinge shaft, and being inclined and extended downward and rearward at the lower end to the middle part of the frame 9, further comprising a connecting rod 17 hinged at the upper end to the middle part of the upper inclined arm 13 and at the lower end to the middle part of the lower inclined arm 23, and a cutting knife wheel 29 movably arranged at the extended end of the lower inclined arm 23, the cutting knife wheel 29 being movably connected to the extended end of the lower inclined arm 23 through a wheel shaft and being located on the center line between the left and right ploughs 1 of the ridging assembly, as shown in Figure 1 , Figure 3 so that the film laid on the planting trench can be cut by the cutting knife wheel 29 to facilitate the planting in the planting trench, and the upper inclined arm 13 can be swung upward and downward together with the lower inclined arm 23 by the connecting rod 17 under the pulling of the swing arm 12, so that the film cutting assembly can be raised and lowered together with the ridging assembly.

[0037] As an embodiment, the film pressing assembly comprises a door-shaped support formed by a top beam 41 and two side columns 40, a connecting plate 18 arranged at the upper part of the door-shaped support for connecting the two side columns 40, and pressing wheels 22 symmetrically arranged at the lower end of the two side columns 40, the pressing wheels 22 being located on both sides of the cutting knife wheel 29, the two ends of the top beam 41 of the door-shaped support being hinged to the shaft sleeve 42 of the middle part of the second longitudinal horizontal connecting rod 15 through a hinge shaft respectively, the two side columns 40 being inclined downward and forward, and being hinged to the lower end of the corresponding upper inclined arm 13 through a short pin 16 arranged at the front end of the connecting plate 18 respectively, the middle part of the back of the connecting plate 18 being connected to the upper end of an L-shaped rod 27, the lower end of the L-shaped rod 27 being bent forward and being provided with a plough head 28, the plough head 28 being located between the two pressing wheels 22, and the tip of the plough head 28 being opposite to the cutting knife wheel 29, as shown in Figure 1 , Figure 2 ,Figure 5 In order to press the film on both sides of the planting ditch by the film pressing wheel 22, the cutting knife wheel 29 can cut the film in the middle of the planting ditch smoothly, and the inside of the cut film is pressed and fixed by the soil dug by the plow head 28.

[0038] As an embodiment, the film pressing assembly further comprises left and right horizontal sleeves 39 arranged at the two ends of the second longitudinal horizontal connecting rod 15 respectively, the left and right horizontal sleeves 39 are provided with locking screws for locking, the left and right horizontal sleeves 39 are connected with corresponding left and right vertical sleeves 14 respectively, the left and right vertical sleeves 14 are movably sleeved with left and right vertical lifting rods 20, the lower ends of the left and right vertical lifting rods 20 are respectively provided with outwardly splayed turning-over wheels 21, so as to press and fix the outside of the cut film by the soil turned over by the turning-over wheels 21.

[0039] The frame 9 is installed on an existing diesel-powered machine, such as a ploughing tractor, so as to drive the device to move in the field by the diesel-powered machine.

[0040] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The basic principles, main features and advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for ripping, furrowing and laying a film, characterized in that The utility model provides a mulching film installation frame and lifting mechanism, and the lifting mechanism is connected with the mulching film installation frame through a connecting rod transmission mechanism, and the connecting rod transmission mechanism is connected with a film cutting assembly and a film pressing assembly arranged at the rear of the frame.

2. The device according to claim 1, characterized in that The mulching film installation frame comprises a horizontal beam arranged longitudinally, left and right mulching film fixing frames movably arranged at both ends of the horizontal beam, the left and right mulching film fixing frames comprising left and right sleeves movably sleeved at both ends of the horizontal beam, and transverse short rods with front ends connected with the left and right sleeves and rear ends horizontally extending rearward, the rear ends of the two transverse short rods being respectively provided with short roller shafts parallel to the horizontal beam, and the left and right sleeves being provided with locking screws matched with the horizontal beam.

3. The device according to claim 1, wherein The lifting mechanism comprises a power cylinder vertically arranged on the frame and a vertical limiting sleeve arranged beside the power cylinder, the cylinder base of the power cylinder being connected with the frame, the lower end of the piston rod being connected with a horizontal sleeve sleeved in the middle of the horizontal beam, and the vertical limiting sleeve being connected with the frame and being provided with a guide rod inside.

4. The device according to claim 3, wherein The ridging assembly comprises a middle vertical sleeve arranged in front of and connected with the horizontal sleeve of the mulching film installation frame, a middle vertical column movably sleeved in the vertical sleeve, and locking screws arranged on the vertical sleeve for locking the middle vertical column, the lower end of the middle vertical column being provided with a longitudinal horizontal rod, the lower ends of the longitudinal horizontal rod being symmetrically provided with left and right ploughs that are eight-shaped and separated downward, and the left and right sleeves of the mulching film installation frame being respectively provided with corresponding left and right short sleeves, the left and right sleeves being respectively provided with locking screws for limiting the left and right short sleeves, the left and right short sleeves being respectively connected with corresponding left and right vertical columns, and the lower ends of the left and right vertical columns being respectively provided with left and right ridging wheels that are eight-shaped and separated outward through wheel shafts.

5. The device according to claim 4, wherein The connecting rod transmission mechanism comprises left and right upper connecting rods hingedly connected with the frame at front ends, and left and right lower connecting rods hingedly connected with the left and right ends of a first longitudinal horizontal connecting rod arranged below the frame at front ends, the bottom of the first longitudinal horizontal connecting rod being sleeved with the upper end of the middle vertical column through a vertical sleeve, the rear ends of the left and right upper connecting rods and the rear ends of the left and right lower connecting rods being hingedly connected through a hinge shaft, the hinge shaft being further hingedly connected with the front ends of left and right horizontal connecting rods, the rear ends of the left and right horizontal connecting rods being hingedly connected with the lower ends of the short rods, the upper ends of the short rods being hingedly connected with swing arms, and the swing arms being hingedly connected with the rear part of the frame through a hinge shaft, and a second longitudinal horizontal connecting rod for connecting the film cutting assembly and the film pressing assembly being arranged between the front end and the rear end of the swing arms.

6. The device of claim 1, wherein The film cutting assembly comprises upper and lower inclined arms arranged at intervals, upper ends of the upper and lower inclined arms are respectively hinged to the middle part of the frame through hinge shafts, lower ends of the upper and lower inclined arms are inclined and extended to the lower back of the middle part of the frame, the assembly further comprises a connecting rod with upper end hinged to the middle part of the upper inclined arm and lower end hinged to the middle part of the lower inclined arm, and a cutting knife wheel movably arranged at the extended end of the lower inclined arm, the cutting knife wheel is movably connected to the extended end of the lower inclined arm through a wheel shaft and is located on the center line between the left and right ploughs of the ridging assembly.

7. The device of claim 1, wherein The film pressing assembly comprises a door-shaped support surrounded by a top beam and two side columns, a connecting plate arranged at the upper part of the door-shaped support for connecting the two side columns, and two film pressing wheels symmetrically arranged at the lower ends of the two side columns, the film pressing wheels are located on the two sides of the cutting knife wheel, the top beam of the door-shaped support is respectively hinged to the shaft sleeve of the middle part of the second longitudinal horizontal connecting rod through hinge shafts at both ends, the two side columns are inclined downward and forward and are respectively hinged to the lower ends of the corresponding upper inclined arms through short pins arranged at both ends of the front surface of the connecting plate, the middle part of the back surface of the connecting plate is connected to the upper end of an L-shaped rod, the lower end of the L-shaped rod is bent forward and is provided with a plough head, the plough head is located between the two film pressing wheels, and the tip of the plough head is opposite to the cutting knife wheel.

8. The device of claim 7, wherein The film pressing assembly further comprises left and right horizontal sleeves arranged at both ends of the second longitudinal horizontal connecting rod, the left and right horizontal sleeves are provided with locking screws for locking, the left and right horizontal sleeves are respectively connected to corresponding left and right vertical sleeves, left and right vertical lifting rods are movably sleeved in the left and right vertical sleeves, and the lower ends of the left and right vertical lifting rods are respectively provided with outwardly eight-shaped deflected soil turning wheels.

9. The device of claim 1, wherein The frame is mounted on a diesel power machine.

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