Full-automatic film laying machine

Abstract

The utility model provides a full-automatic film mulching machine, which belongs to the technical field of agricultural machinery and comprises a film feeding device, a film mulching device, a film cutting and clamping device and an end face soil covering device. The film paving device comprises a furrow opener, a film pressing wheel and a covering device; the film cutting and clamping device is located behind the film pressing wheel and comprises a film cutting knife, a film clamping movable plate and a clamping jaw mechanism, the film cutting knife is in sliding connection with the rack, and the film clamping movable plate is in sliding connection with the film cutting knife; the clamping jaw mechanism is mounted on the film clamping movable plate; the end face soil covering device is installed behind the film cutting and clamping device and comprises an end face soil covering frame and an end face soil covering plate assembly, and the end face soil covering frame is in sliding connection with the rack; the end face soil covering plate assembly is rotationally connected with the end face soil covering frame, and soil is dug forwards or backwards through the end face soil covering plate assembly so as to achieve end face soil covering at the beginning and the ending of a row of film laying. According to the utility model, the film paving efficiency and the automation level of film paving are improved, so that the film paving is simpler, more efficient and more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a full-automatic film laying machine. Background Art

[0002] In many areas, film mulching is required for sowing or transplanting, especially in arid areas. Covering the film can increase soil temperature, reduce soil moisture evaporation, and prevent weeds. Although there are many film laying machines now and the penetration rate of film laying machines is relatively high, the film laying machines on the market now cannot achieve full-automatic film laying. Some film laying machines do not have a film cutting function and require manual film cutting. The plastic films of most film laying machines are in a passive unfolding mode. After film laying, there is tensile stress, and the situation of uneven tension or film rupture may occur, resulting in the film being in a state of being easily torn under tension after film laying, which affects the covering effect. Moreover, because only a small part of the film is laid in the field at the beginning of film laying, the friction force on the film is relatively small, and the passive unfolding mode of the film will lead to an unsatisfactory unfolding effect of the film. In addition, most of the existing film laying machines do not have an end soil covering function, and manual film cutting and soil covering of the end face of the film are required.

[0003] The patent document with the publication number of CN107318544A discloses a full-automatic film laying machine, which includes a frame. A film laying mechanism is installed on the frame. The film laying mechanism is composed of a film laying rod, a tensioning roller, a furrowing disc, a soil covering roller and a soil covering disc. It also includes a film cutting and clamping mechanism, a soil covering adjustment mechanism, a drip irrigation mechanism, a fertilization mechanism and a frame adjustment mechanism. The automatic laying of the plastic film can be realized through a hydraulic device, and it has various functions and can meet different working needs of people. However, this film laying machine cuts the film by the downward movement of a film cutting knife and realizes film cutting and clamping by closely adhering to the soil covering roller. This method is prone to the situation of clamping soil or loose clamping when clamping the film, and its film laying machine does not have an end soil covering function, and the end face of the film still needs manual soil covering. Secondly, because some plastic films are rolled relatively tightly, at the beginning of film laying in each row, due to the relatively small friction force on the end of the film, the film laying device that unfolds the film passively may cause the film to move with the film laying machine without being laid on the land.

[0004] The patent document with the publication number CN104160897A discloses an automatic film laying machine, which includes a frame, a film reel holder, a first film reel, a dialing roller, a dialing roller drive assembly, a film spreading and pressing wheel, a film cutting knife, and a parallel link mechanism movably connected to both sides of the frame. Driven by the dialing roller drive assembly, the dialing roller rotates, and the rotation of the dialing roller further drives the first film reel to rotate, so that the film tape on the first film reel drops downward. The film spreading and pressing wheel is in contact with the ground, so that the film tape can be spread and pressed; in the working state, the blade of the film cutting knife is higher than the film tape laid on the ground. When the frame is lifted, the parallel link mechanism sags under the action of gravity, and the film cutting knife moves downward accordingly to cut the film tape; while laying and cutting the film, the film tape is actively unfolded by the dialing of the dialing roller and the spreading and pressing of the film spreading and pressing wheel. However, this film laying machine does not have the function of covering the end face of the soil, and manual covering of the end face of the plastic film is still required, so it cannot achieve full-automatic film laying. Summary of the Utility Model

[0005] The problem to be solved by the present utility model is to provide a full-automatic film laying machine.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is: a full-automatic film laying machine, which includes a film feeding device, a film laying device, a film cutting and clamping device, and an end face soil covering device. The film feeding device, the film laying device, the film cutting and clamping device, and the end face soil covering device are all installed on the frame. The film feeding device includes a driving roller and a driven roller group to realize the transmission of the plastic film. The film laying device includes a furrow opener, a film pressing wheel, and a soil covering device. The furrow opener is symmetrically installed on two columns on both sides of the front end of the frame, and the soil covering device is symmetrically installed on two columns on both sides of the rear end of the frame. The film pressing wheel is located between the furrow opener and the soil covering device. The furrow opener and the soil covering device are bent integral sheet structures. The furrow opener faces the outer side in the front direction, and the soil covering device faces the inner side in the front direction.

[0007] The film cutting and clamping device is located behind the film pressing wheel. The film cutting and clamping device includes a film cutting knife, a clamping film movable plate, and a clamping jaw mechanism. The two sides of the film cutting knife form a slidable connection with the frame that can move up and down. The clamping film movable plate is installed on the film cutting knife, and the clamping film movable plate is slidably connected to the film cutting knife. A tension spring is arranged on the clamping film movable plate. The upper end of the tension spring is connected to the clamping film movable plate, and the lower end is connected to the film cutting knife. Due to the action of the tension spring, the clamping film movable plate is default at the lowest end of the movable range.

[0008] The clamping jaw mechanism is installed on the clamping film movable plate. The clamping jaw mechanism is located between the film pressing wheel and the film cutting knife, and the opening and closing of the clamping jaw mechanism are driven by a servo motor.

[0009] The end face covering device is installed behind the film cutting and clamping device, and includes an end face covering frame and an end face covering plate assembly. The end face covering frame is connected to the frame through a slide rail and slider structure, and is driven to rise and fall on the frame by electric or hydraulic means; the end face covering plate assembly is rotatably connected to the end face covering frame through a crank, and the end face covering motor drives the crank to rotate, and the crank drives the end face covering plate assembly to move, and the end face covering is achieved at the beginning and end of a row of film laying by shaving the soil forward or backward through the end face covering plate assembly.

[0010] Furthermore, the passive roller group includes a first passive roller, a second passive roller, a third passive roller, a fourth passive roller and a fifth passive roller which are arranged in sequence along the output direction, the first passive roller is arranged tangentially to the active roller, the active roller is connected to the film feeding motor and is driven to rotate by the film feeding motor, and the film feeding motor drives the active roller and the first passive roller to realize active film feeding.

[0011] Furthermore, the second passive roller is a floating roller, the second passive roller is connected to a pressure sensor, and the pressure sensor is also connected to a film feeding motor.

[0012] Furthermore, the trenching device comprises a trenching baffle, a trenching guide plate and a trenching shovel plate arranged from top to bottom. When the trenching shovel plate digs the trench, the trenching shovel plate and the trenching guide plate guide the shoveled soil to the outside of the trench, and the trenching baffle prevents excessive shoveled soil from overflowing from the trenching device and falling back into the trench; the soil covering device comprises a soil covering baffle, a soil covering guide plate and a soil covering plate arranged from top to bottom. The soil covering plate and the soil covering guide plate push the soil guided to the outside of the trench by the trenching back into the trench to cover both sides of the mulch film with soil, and at the same time the soil covering baffle prevents the soil from overflowing when covering the soil.

[0013] Furthermore, the structures of the furrow opener and the soil cover can be completely the same, and only the installation direction needs to be adjusted, which is convenient for replacement and maintenance.

[0014] Furthermore, the film cutting end of the film cutting knife is a tooth-shaped structure, which makes it easier to cut the ground film.

[0015] Furthermore, the clamping mechanism includes a hinged fixed jaw and a movable jaw, the clamping end of the fixed jaw is provided with a fixed clamping plate, and the clamping end of the movable jaw is provided with a movable clamping plate. The servo is hinged to the movable jaw through a crank-connecting rod mechanism, and the servo drives the movable jaw to open and close relative to the fixed jaw, thereby driving the movable clamping plate and the fixed clamping plate to complete the clamping action, thereby clamping the end surface of the ground film.

[0016] Furthermore, when the clamping mechanism is opened, the fixed clamping plate is arranged vertically, and the bottom of the movable clamping plate is arranged outwardly inclined. The movable clamping plate is arranged adjacent to the film cutting knife.

[0017] Furthermore, the end face covering plate assembly includes an end face covering plate and a limiting rod connected on both sides of the end face covering plate, the upper end of the limiting rod is connected to the crank, the limiting rod is provided with a slide groove, the slide groove is sleeved on the limiting protrusion, the slide groove cooperates with the limiting protrusion, so that the limiting rod is driven by the crank and limited by the limiting protrusion to realize the soil-cutting action of the end face covering plate.

[0018] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0019] The utility model proposes an automatic film laying machine, which can realize fully automatic film cutting, film clamping and end face covering compared with traditional film laying machines, wherein the end face covering includes two side end face covering and two end end face covering, thereby realizing true single-person control of film laying, and has the function of ground film tension detection, and will not cause uneven ground film tension or rupture after film laying. In addition, the furrow opener and soil covering device of the utility model have simple structure, are easy to use, and have better furrowing and soil covering effects.

[0020] The utility model improves the film laying efficiency and the automation level of film laying, making the film laying simpler, more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with examples, and the advantages and implementation methods of the present invention will become more obvious. The contents shown in the accompanying drawings are only used to explain the present invention and do not constitute any limitation to the present invention. In the accompanying drawings:

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the utility model in another direction.

[0024] Figure 3 It is a structural schematic diagram of the film feeding device of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the film cutting and clamping device of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the end surface covering device of the utility model.

[0027] In the figure:

[0028] 1. Frame; 2. Fourth passive roller; 3. Third passive roller; 4. Second passive roller; 5. Film feeding roller; 6. First passive roller; 7. Driving roller; 8. Pressure sensor; 9. Film feeding motor; 10. Crank; 11. Slide groove; 12. Film cutting knife; 13. Soil covering device; 14. End face soil covering plate; 15. Claw mechanism; 16. Furrow opener; 17. Fifth passive roller; 18. Film pressing wheel; 19. End face soil covering motor; 20. Film clamping movable plate; 21. Slide block; 22. Longitudinal film cutting slide rail; 23. Steering gear; 24. Tooth-like structure; 25. End face soil covering frame; 26. Tension spring; 27. Fixed claw; 28. Movable claw; 29. Fixed clamping plate; 30. Movable clamping plate; 31. Limit rod; 32. Limit projection; 33. Furrow opening baffle; 34. Furrow opening guiding plate; 35. Furrow opening soil shoveling plate; 36. Soil covering baffle; 37. Soil covering guiding plate; 38. Soil covering plate. Detailed implementation manner

[0029] As Figures 1 to 5 shown, a full-automatic film laying machine of the present utility model includes a film feeding device, a film laying device, a film cutting and clamping device, and an end face soil covering device. The film feeding device, the film laying device, the film cutting and clamping device, and the end face soil covering device are all installed on the frame 1.

[0030] As Figure 3 shown, the film feeding device includes a driving roller 7 and a passive roller group. The passive roller group includes a first passive roller 6, a second passive roller 4, a third passive roller 3, a fourth passive roller 2, and a fifth passive roller 17 arranged in sequence along the output direction. The first passive roller 6 is tangent to the driving roller 7. The driving roller 7 is connected to the film feeding motor 9 and is driven to rotate by the film feeding motor 9. The film feeding motor 9 drives the driving roller 7 and the first passive roller 6 to achieve active film feeding. The second passive roller 4 is a floating roller (prior art) and can move up and down. The second passive roller 4 is connected to the pressure sensor 8, and the pressure sensor 8 is also connected to the film feeding motor 9.

[0031] When the plastic film on the film feeding roller 5 passes through the first passive roller 6, the second passive roller 4, and the third passive roller 3, due to the action of the plastic film tension, a downward pressure F is applied to the second passive roller 4. The second passive roller 4 can move up and down and is connected to the pressure sensor 8, thereby detecting the tension of the plastic film. The film feeding motor 9 adjusts the film feeding speed according to the tension detected by the pressure sensor 8 to keep the tension constant. The fourth passive roller 2 and the fifth passive roller 17 play a guiding role for the plastic film, and the fifth passive roller 17 can be adjusted up and down according to requirements.

[0032] As Figure 1As shown, the film laying device includes a furrow opener 16, a film pressing wheel 18, and a soil covering device 13. The furrow opener 16 is symmetrically installed on two columns on both sides of the front end of the frame 1, the soil covering device 13 is symmetrically installed on two columns on both sides of the rear end of the frame, and the film pressing wheel 18 is located between the furrow opener 16 and the soil covering device 13. At the same time, the film pressing wheel 18 is located below the driving roller 7, the first driven roller 6, the second driven roller 4, the third driven roller 3, and the fourth driven roller 2, and behind the fifth driven roller 17.

[0033] The furrow opener 16 of the film laying device is used to open furrows, the film pressing wheel 18 presses both sides of the plastic film into the furrows opened by the furrow opener 16, and the soil covering devices 13 on both sides cover the soil on both sides of the plastic film.

[0034] The furrow opener 16 is a bent integral sheet structure. The furrow opener 16 includes a furrow opening baffle 33, a furrow opening guide plate 34, and a furrow opening soil shoveling plate 35 arranged from top to bottom. The furrow opening soil shoveling plate 35 faces the outer front direction. While the furrow opening soil shoveling plate 35 is opening the furrow, the furrow opening soil shoveling plate 35 and the furrow opening guide plate 34 guide the shoveled soil to the outside of the furrow, and the furrow opening baffle 33 prevents the shoveled soil from overflowing the furrow opener and falling back into the furrow.

[0035] As Figure 2 shown ( Figure 2 only the situation of installing the furrow opener 16 and the soil covering device 13 on one side is shown, and the columns in the symmetrical positions show the uninstalled state), the soil covering device 13 is a bent integral sheet structure. The soil covering device 13 includes a soil covering baffle 36, a soil covering guide plate 37, and a soil covering plate 38 arranged from top to bottom. The soil covering plate 38 faces the inner front direction (i.e., the direction towards the plastic film). The soil covering plate 38 and the soil covering guide plate 37 dial the soil exported to the outside of the furrow back into the furrow to cover both sides of the plastic film with soil, and at the same time, the soil covering baffle 36 prevents the soil from overflowing during soil covering.

[0036] The structures of the furrow opener 16 and the soil covering device 13 of the present utility model can be exactly the same, and only the installation direction needs to be adjusted, which is convenient for replacement and maintenance.

[0037] As Figure 4 shown, the film cutting and clamping device is located behind the film pressing wheel 18. The film cutting and clamping device includes a film cutting knife 12, a film clamping movable plate 20, and a clamping jaw mechanism 15. Both sides of the film cutting knife 12 form a slidable connection with the frame 1 that can move up and down. Longitudinal film cutting slide rails 22 are installed on both sides of the film cutting knife 12, and film cutting sliders 21 are arranged on both sides of the frame. The longitudinal film cutting slide rails 22 and the film cutting sliders 21 are cooperatively arranged, and the film cutting knife 12 is driven by an electric or hydraulic device to move up and down to cut the film. The film cutting end of the film cutting knife 12 is a toothed structure 24, which is easier to cut the plastic film.

[0038] The film clamping movable plate 20 is installed on the film cutting knife 12, and the film clamping movable plate 20 is slidably connected to the film cutting knife 12. The film clamping movable plate 20 can move up and down on the film cutting knife 12 through a sliding rail slider structure. A tension spring 26 is arranged on the film clamping movable plate 20, and the tension spring 26 is arranged longitudinally. The upper end of the tension spring 26 is connected to the film clamping movable plate 20, and the lower end is connected to the film cutting knife 12. Due to the action of the tension spring 26, the film clamping movable plate 20 is at the lower end of the movable range by default.

[0039] The clamping jaw mechanism 15 is installed on the film clamping movable plate 20, and the clamping jaw mechanism 15 is located between the film pressing wheel 18 and the film cutting knife 12, and the opening and closing of the clamping jaw mechanism 15 is driven by the steering gear 23. Specifically, the clamping jaw mechanism 15 includes a hinged fixed clamping jaw 27 and a movable clamping jaw 28, and the clamping end of the fixed clamping jaw 27 is provided with a fixed clamping plate 29, and the clamping end of the movable clamping jaw 28 is provided with a movable clamping plate 30. The steering gear 23 is hinged with the movable clamping jaw 28 through a crank connecting rod mechanism, and the movable clamping jaw 28 is driven by the steering gear 23 to open and close relative to the fixed clamping jaw 27, thereby driving the movable clamping plate 30 and the fixed clamping plate 29 to complete the clamping action, so as to achieve the clamping of the end surface of the ground film.

[0040] When the clamping jaw mechanism 15 is opened, the fixed clamping plate 29 is vertically arranged, and the bottom of the movable clamping plate 30 is tilted outward (away from the fixed clamping plate 29 ). The movable clamping plate 30 is arranged adjacent to the film cutting knife 12 .

[0041] like Figure 5 As shown, the end face covering device is installed behind the film cutting and clamping device, and the end face covering device includes an end face covering frame 25 and an end face covering plate assembly. The end face covering frame 25 is connected to the frame 1 through a slide rail slider structure, and the end face covering frame 25 is driven to rise and fall on the frame 1 by electric or hydraulic means; the end face covering plate assembly is rotatably connected to the end face covering frame 25 through a crank 10, and the end face covering motor 19 drives the crank 10 to rotate, and the crank 10 drives the end face covering plate assembly to move, and the end face covering is achieved at the beginning and end of a row of film laying by shaving the soil forward or backward through the end face covering plate assembly.

[0042] The end face covering plate assembly includes an end face covering plate 14 and a limiting rod 31 connected on both sides of the end face covering plate 14. The upper end of the limiting rod 31 is connected to the crank 10. A slide groove 11 is provided on the limiting rod 31. The slide groove 11 is sleeved on the limiting protrusion 32. The slide groove 11 cooperates with the limiting protrusion 32, so that the limiting rod 31 is driven by the crank 10 and is limited by the limiting protrusion 32 to realize the soil-cutting action of the end face covering plate 14.

[0043] The working process of the utility model comprises the following steps:

[0044] S1. In the default state, the end face of the plastic film passes through the passive rollers (the first passive roller 6, the second passive roller 4, the third passive roller 3, the fourth passive roller 2, the fifth passive roller 17) and the film pressing wheel 18 and is clamped within the jaw mechanism 15;

[0045] S2. When a row of film laying starts, the film cutting knife 12 descends, thereby driving the jaw mechanism 15 to descend. Then, the jaw mechanism 15 is driven by the servo motor 23 to open, allowing the end face of the plastic film to fall to the ground. Then, the film cutting knife 12 drives the jaw mechanism 15 to rise. At the same time, the end face soil covering device descends, and the end face soil covering motor 19 rotates forward to drive the end face soil covering assembly to dig soil forward to achieve end face soil covering at the initial end;

[0046] S3. After the end face soil covering at the initial end is completed, the end face soil covering device rises, and then the film laying machine is driven forward by a tractor or other driving unit to achieve film laying for one row. During the forward movement, the film pressing wheel 18 presses the two sides of the plastic film into the trenches opened by the furrow opener 16, and the two side soil covering devices 13 cover the two sides of the plastic film with soil; at the same time, the film feeding motor 9 adjusts the film feeding speed according to the tension detected by the pressure sensor 8 to ensure the uniformity of the tension of the laid plastic film;

[0047] S4. After the film laying for one row is completed, the film laying machine stops moving forward. The film cutting knife 12 drives the jaw mechanism 15 to descend. Since the jaw mechanism 15 can move up and down on the film cutting knife 12 and, with the cooperation of the tension spring 26, when the jaw mechanism 15 presses on the plastic film, the jaw mechanism stops moving downward, and the film cutting knife 12 continues to move downward to cut the plastic film. At this time, the jaw mechanism 15 closes to clamp the end face of the plastic film. The film cutting knife 12 drives the jaw mechanism 15 to rise, and then the film laying machine is driven forward by a tractor or other driving unit to move forward about 0.2 meters so that the end face of the plastic film reaches behind the end face soil covering device. The end face soil covering device descends, and after descending, the end face soil covering motor 19 rotates in reverse to drive the end face soil covering assembly to dig soil backward to achieve end face soil covering at the end. Finally, the end face soil covering device rises, and the film laying for the entire row is completed.

[0048] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equal changes and improvements made within the scope of the present invention should still fall within the scope covered by the present invention.

Claims

1. A fully automatic film laying machine, characterized in that: The machine comprises a film feeding device, a film laying device, a film cutting and clamping device and an end-face covering device installed on the frame, wherein the film feeding device comprises an active roller and a passive roller group to realize the transmission of the ground film; the film laying device comprises a furrow opener, a film pressing wheel and a soil covering device, wherein the furrow opener is symmetrically installed on two columns on both sides of the front end of the frame, and the soil covering device is symmetrically installed on two columns on both sides of the rear end of the frame, and the film pressing wheel is located between the furrow opener and the soil covering device, and the furrow opener and the soil covering device are bent one-piece sheet structures, the furrow opener faces the front outer direction, and the soil covering device faces the front inner direction; the film cutting and clamping device is located behind the film pressing wheel, and the film cutting and clamping device comprises a film cutting device, a film pressing wheel and a soil covering device, wherein the film cutting device and the film clamping device are arranged on the rear of ... The invention relates to a knife, a film clamping movable plate and a clamping claw mechanism, the two sides of the film cutting knife form a sliding connection with the frame for up and down movement; the film clamping movable plate is installed on the film cutting knife, the film clamping movable plate is slidably connected with the film cutting knife, a tension spring is arranged on the film clamping movable plate, the upper end of the tension spring is connected with the film clamping movable plate, and the lower end is connected with the film cutting knife; the clamping claw mechanism is installed on the film clamping movable plate, and the clamping claw mechanism is located between the film pressing wheel and the film cutting knife; the end face covering device is installed behind the film cutting and clamping device, the end face covering device comprises an end face covering frame and an end face covering plate assembly, the end face covering frame is slidably connected with the frame; the end face covering plate assembly forms a rotating connection with the end face covering frame.

2. The full-automatic film laying machine according to claim 1, wherein: The passive roller group includes a first passive roller, a second passive roller, a third passive roller, a fourth passive roller and a fifth passive roller which are arranged in sequence along the output direction. The first passive roller is arranged tangentially to the active roller. The active roller is connected to the film feeding motor. The film feeding motor drives the active roller and the first passive roller to realize active film feeding.

3. The full-automatic film laying machine according to claim 2, characterized in that: The second passive roller is a floating roller, the second passive roller is connected to a pressure sensor, and the pressure sensor is also connected to a film feeding motor.

4. The full-automatic film laying machine according to claim 1, wherein: The trench opener comprises a trench opening baffle, a trench opening guide plate and a trench opening shovel plate arranged from top to bottom; the soil coverer comprises a soil covering baffle, a soil covering guide plate and a soil covering plate arranged from top to bottom.

5. The full-automatic film laying machine according to claim 4, wherein: The furrow opener and the soil coverer have the same structure.

6. The full-automatic film laying machine according to claim 1, wherein: The clamping jaw mechanism includes a hinged fixed clamping jaw and a movable clamping jaw, the clamping end of the fixed clamping jaw is provided with a fixed clamping plate, and the clamping end of the movable clamping jaw is provided with a movable clamping plate. The servo is hinged to the movable clamping jaw through a crank-connecting rod mechanism, and the servo drives the movable clamping jaw to open and close relative to the fixed clamping jaw, thereby driving the movable clamping plate and the fixed clamping plate to complete the clamping action, thereby realizing the clamping of the end surface of the ground film.

7. The full-automatic film laying machine according to claim 6, wherein: When the clamping jaw mechanism is opened, the fixed clamping plate is arranged vertically, the bottom of the movable clamping plate is arranged to be inclined outward, and the movable clamping plate is arranged adjacent to the film cutting knife.

8. The full-automatic film laying machine according to claim 1, wherein: The end face covering plate assembly includes an end face covering plate and a limiting rod connected at both sides of the end face covering plate, the upper end of the limiting rod is connected to a crank, a slide groove is arranged on the limiting rod, the slide groove is sleeved on a limiting protrusion, the slide groove cooperates with the limiting protrusion, so that the limiting rod is driven by the crank and limited by the limiting protrusion to realize the soil-cutting action of the end face covering plate.

Images