Multifunctional film mulching mini-tiller

Abstract

The invention discloses a multifunctional film mulching mini-tiller, relates to the technical field of agricultural mini-tillers, and provides the following scheme that the multifunctional film mulching mini-tiller comprises a walking tractor, a rotary tillage mechanism is connected to the rear end of the walking tractor, and an electric energy compensation mechanism is arranged on the middle section of the top surface of the walking tractor; and the rear end of the rotary tillage mechanism is connected with a film and pesticide mulching mechanism. The walking tractor is matched with the rotary tillage mechanism, land ploughing operation can be efficiently completed, the power transmission structure achieves stable power transmission through the flywheel, the triangular belt, the gearbox, the transmission case, the chain and other components, and stable operation of the rotary tillage knife roller is guaranteed. The electric energy compensation mechanism utilizes a photovoltaic panel to generate power and supply power to the LED lamp, energy self-sufficiency is achieved, energy consumption is reduced, the angle of the photovoltaic panel is adjustable, and the power generation efficiency is improved. The film laying and medicine covering mechanism integrates the film laying function and the medicine covering function, the solvent box can load different solvents, and various operation requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural micro-tillage machines, and in particular to a multifunctional film-laying micro-tillage machine. Background Art

[0002] In traditional agricultural production, farmland operations often rely on manpower or large agricultural machinery, but these methods have many disadvantages. For example, manual farming is labor-intensive and inefficient, and it is difficult to meet the needs of large-scale agricultural production; and although large agricultural machinery is more efficient, it has many limitations when operating in complex terrains such as hills, mountains, orchards, and small plots of land, such as inability to turn flexibly and difficulty adapting to narrow spaces, resulting in reduced operation quality, and high equipment purchase costs, which many farmers cannot afford.

[0003] With the development of agricultural modernization, higher requirements are put forward for agricultural machinery. A machine that can adapt to complex terrain, integrate multiple functions and improve agricultural production efficiency is needed. In this context, multifunctional film-laying micro-tillage machines came into being. The existing micro-tillage machines have relatively single functions, generally only have basic functions such as rotary tillage, and cannot meet the diversified needs in agricultural production. For example, after completing the rotary tillage operation, it is necessary to carry out film laying, drug covering and other operations separately, which not only increases the operation links and labor intensity, but also reduces production efficiency. Moreover, traditional micro-tillage machines also have shortcomings in energy utilization. Most of them rely on fuel to provide power, with high energy consumption, which does not conform to the development trend of green agriculture. In addition, in the film-laying operation, the quality of the ground film laid by the traditional method is unstable, and it is easy to have problems such as wrinkles and uneven coverage, which affects the growth of crops. At the same time, in the drug covering link, it is difficult to accurately control the spraying amount and uniformity of the agent, which is easy to cause agent waste and environmental pollution.

[0004] In order to solve the above problems, it is necessary to develop a multifunctional film-laying micro-tillage machine. Summary of the invention

[0005] In view of the defects raised in the above-mentioned background technology, a technical solution of a multifunctional film-laying micro-tillage machine is provided.

[0006] A walking tractor is included, wherein a rotary tillage mechanism is connected to the rear end of the walking tractor, an electric energy compensation mechanism is arranged in the middle section of the top surface of the walking tractor, and a film-laying and medicine-covering mechanism is connected to the rear end of the rotary tillage mechanism;

[0007] The walking tractor comprises a frame, a diesel engine fixed inside the frame through machine feet, and two running wheels rotatably arranged in the middle of the bottom of the frame, a gearbox is connected to the rear end of the diesel engine, and a control handrail is arranged at the rear end of the frame;

[0008] The rotary tillage mechanism includes an engine hood, transmission boxes fixed on the left and right sides of the engine hood, and a rotary tillage cutter roller rotatably arranged in the inner cavity of the engine hood;

[0009] The electric energy compensation mechanism includes two photovoltaic panels, hydraulic support rods hinged on the bottom surface of the photovoltaic panels, and connecting pieces hinged to the telescopic shafts of the hydraulic support rods;

[0010] The film laying and medicine covering mechanism includes a rectangular frame, a solvent tank fixed on the top surface of the rectangular frame, and a film roller fixed on the bottom surface of the rectangular frame, and a medicine spraying pipe is connected to the bottom port of the solvent tank.

[0011] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: a flywheel is rotatably arranged on the side wall of the diesel engine, a transmission wheel is rotatably arranged on the side wall of the gearbox, and the transmission wheel and the flywheel are connected by a V-belt drive.

[0012] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: power take-off boxes are arranged on the left and right sides of the gearbox, and the output shafts on the left and right sides of the power take-off boxes are connected to the transmission boxes through couplings to drive the rotary tillage cutter roller to rotate.

[0013] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: the transmission box internally includes two sprockets connected to the output shafts on both sides of the gearbox, and sprockets connected to the left and right ends of the rotary tillage cutter roller, and the sprockets are connected to each other by a chain drive.

[0014] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: a support column is welded on the rear end surface of the engine hood, and the bottom end of the support column is rotatably connected to a roller through a wheel axle.

[0015] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: two hinges are respectively hinged on the side end surfaces of the photovoltaic panels close to each other, and the hinges are respectively connected to the left and right side walls of the operating armrest, and the side of the connecting piece away from the hydraulic support rod is fixedly connected to the side wall of the operating armrest.

[0016] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: a storage battery is arranged at the rear side inside the frame, the power generation end of the photovoltaic panel is connected to a photovoltaic power adapter, and an LED lamp is installed on the front side of the frame, and the storage battery provides electric energy for the LED lamp.

[0017] In the technical solution of the above-mentioned multifunctional film laying and micro-tillage machine, preferably: a steel pipe is fixedly connected to the rear end surface of the support column, a seat is fixed on the top surface of the steel pipe, a connecting rod is fixedly connected to the bottom surface of the steel pipe, and the rear end of the connecting rod is hinged to the front end surface of the rectangular frame through a shaft pin.

[0018] In the above technical solution of a multi-functional film-laying and tilling machine, preferably: the inside of the solvent tank is loaded with, including but not limited to, liquid soil improver and liquid fertilizer, and a liquid level sensor is installed inside the solvent tank. The top surface of the solvent tank is provided with a liquid inlet port. A servo water pump is installed in the inner cavity of the solvent tank. The liquid outlet end of the servo water pump is connected to the top port of the spraying pipe through a connector. A plurality of liquid outlet holes are opened on the bottom surface of the spraying pipe.

[0019] In the above technical solution of a multi-functional film-laying and tilling machine, preferably: a driven wheel is rotatably provided on the front side of the bottom surface of the rectangular frame, and a film pressing wheel is rotatably connected to the rear side of the bottom surface of the rectangular frame. The bottom surface of the film pressing wheel is in contact with the film. The rear sides of the left and right sides of the rectangular frame are fixedly connected with film gathering plates. The sides of the film gathering plates close to each other are in contact with both sides of the ridge, and the film gathering plates are used for gathering the film and covering both sides of the ridge.

[0020] It can be seen from the above technical solution that the present invention provides a multi-functional film-laying and tilling machine. Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the walking tractor is matched with a rotary tillage mechanism, which can efficiently complete the land tillage operation. The power transmission structure realizes stable power transmission through components such as a flywheel, a V-belt, a gearbox, a transmission case, and a chain, ensuring the stable operation of the rotary tillage cutter roller. The electric energy compensation mechanism uses a photovoltaic panel to generate electricity and supply power to the LED lights, realizing energy self-sufficiency, reducing energy consumption, and the angle of the photovoltaic panel is adjustable to improve the power generation efficiency. The film-laying and drug-covering mechanism integrates the functions of film-laying and drug-covering. The solvent tank can load different solvents to meet various operation requirements. The servo water pump precisely controls the spraying of drugs, and the film gathering plates gather the film and cover both sides of the ridge, improving the film-laying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce and explain the drawings required to be used in the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic diagram of the overall structure of the film-laying and tilling machine;

[0024] Figure 2 It is a schematic diagram of the walking tractor;

[0025] Figure 3 It is a schematic diagram of the rotary tillage mechanism;

[0026] Figure 4 It is a schematic diagram of the electric energy compensation mechanism;

[0027] Figure 5 It is a schematic diagram of the film-laying and drug-covering mechanism.

[0028] Appendix Figure 1 - Appendix Figure 5 The corresponding relationships of the components among them are as follows:

[0029] 1. Walking tractor; 11. Frame; 12. Traveling wheels; 13. Driving wheel; 14. Gearbox; 15. Control armrest; 16. Diesel engine; 17. Flywheel; 2. Rotary tillage mechanism; 21. Hood; 22. Transmission case; 23. Rotary tillage cutter roller; 24. Roller; 25. Support column; 3. Electric energy compensation mechanism; 31. Photovoltaic panel; 32. Hinge; 33. Hydraulic support rod; 34. Connecting piece; 4. Film-laying and drug-covering mechanism; 41. Rectangular frame; 42. Solvent tank; 43. Seat; 44. Steel pipe; 45. Connecting rod; 46. Spraying pipe; 47. Driven wheel; 48. Film roller; 49. Film gathering plate; 410. Film pressing wheel. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] In order to more clearly explain and illustrate the technical solutions and implementation manners of the present invention, the following introduces the preferred specific embodiments for implementing the technical solutions of the present invention.

[0032] Embodiment 1, a multifunctional film-laying micro-tiller, comprising a walking tractor 1, the rear end of the walking tractor 1 is connected to a rotary tillage mechanism 2, the middle section of the top surface is provided with an electric energy compensation mechanism 3, and the rear end of the rotary tillage mechanism 2 is connected to a film-laying and drug-covering mechanism 4.

[0033] The frame 11 of the walking tractor 1 is welded by high-strength steel. The diesel engine 16 is firmly fixed inside the frame 11 by the engine feet. The diesel engine 16 selects a common agricultural diesel engine, and a flywheel 17 is rotatably arranged on its side wall. Two traveling wheels 12 are rotatably arranged in the middle section of the bottom of the frame 11. The traveling wheels 12 are made of rubber material to increase the friction with the ground. The rear end of the diesel engine 16 is connected to a gearbox 14, a driving wheel 13 is rotatably arranged on the side wall of the gearbox 14, and the driving wheel 13 and the flywheel 17 are connected by a V-belt drive to achieve power transmission. A control armrest 15 is arranged at the rear end of the frame 11, and the surface of the control armrest 15 is wrapped with an anti-slip rubber sleeve for convenient operation by the operator.

[0034] The hood 21 of the rotary tillage mechanism 2 is made of aluminum alloy to reduce weight. On the left and right sides of the hood 21, the transmission box 22 is fixed. Inside the transmission box 22, there are two sprockets connected to the output shafts on both sides of the gearbox 14, and sprockets connected to the left and right ends of the rotary tillage cutter roller 23. The sprockets are connected to each other by chain drive to drive the rotary tillage cutter roller 23 to rotate. A plurality of rotary tillage blades are installed on the rotary tillage cutter roller 23 for tilling the land. On the rear end face of the hood 21, the support column 25 is welded. The bottom end of the support column 25 is rotatably connected to the roller 24 through a wheel axle to assist the movement of the rotary tillage mechanism 2.

[0035] The two photovoltaic panels 31 of the electric energy compensation mechanism 3 are made of monocrystalline silicon to improve the photoelectric conversion efficiency. On the end faces of the photovoltaic panels 31 close to each other, two hinges 32 are hinged. The hinges 32 are respectively connected to the left and right side walls of the operating armrest 15. On the bottom surface of the photovoltaic panel 31, the hydraulic support rod 33 is hinged. The telescopic shaft of the hydraulic support rod 33 is hinged to the connecting piece 34. The side of the connecting piece 34 away from the hydraulic support rod 33 is fixedly connected to the side wall of the operating armrest 15. The angle of the photovoltaic panel 31 can be adjusted through the hydraulic support rod 33. A storage battery is arranged at the rear side inside the frame 11. The power generation end of the photovoltaic panel 31 is connected to the photovoltaic power adapter. The LED lamp is installed on the front side of the frame 11. The storage battery provides electric energy for the LED lamp.

[0036] The rectangular frame 41 of the film laying and medicine covering mechanism 4 is welded with steel. The solvent tank 42 is fixed on the top surface. The liquid soil conditioner is loaded inside the solvent tank 42. A liquid level sensor is installed inside the solvent tank 42. The liquid inlet port is arranged on the top surface. The servo water pump is installed in the inner cavity. The liquid outlet end of the servo water pump is connected to the top port of the medicine spraying pipe 46 through a joint. A plurality of liquid outlet holes are arranged on the bottom surface of the medicine spraying pipe 46. The film roller 48 is fixed on the bottom surface of the rectangular frame 41 for laying the film. On the rear end face of the support column 25, the steel pipe 44 is fixedly connected. The seat 43 is fixed on the top surface of the steel pipe 44. The connecting rod 45 is fixed on the bottom surface. The rear end of the connecting rod 45 is hinged to the front end face of the rectangular frame 41 through a shaft pin. The driven wheel 47 is rotatably arranged on the front side of the bottom surface of the rectangular frame 41, and the film pressing wheel 410 is rotatably connected to the rear side. The bottom surface of the film pressing wheel 410 contacts the film. The film gathering plates 49 are fixedly connected to the rear sides of the left and right sides of the rectangular frame 41. The sides of the film gathering plates 49 close to each other contact the two sides of the ridge for gathering the film and covering it on both sides of the ridge.

[0037] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that: the diesel engine 16 of the walking tractor 1 selects a new type of energy-saving diesel engine to reduce energy consumption. Power take-off boxes are arranged on the left and right sides of the transmission 14, and the output shafts on the left and right sides of the power take-off boxes are connected to the transmission case 22 through couplings to directly drive the rotary tillage cutter roller 23 to rotate, reducing power transmission loss. The photovoltaic panels 31 of the electric energy compensation mechanism 3 adopt double-sided power generation technology to increase power generation. The storage battery selects a high-performance lithium battery with a larger capacity and stronger endurance. The solvent tank 42 of the film laying and medicine applying mechanism 4 is internally loaded with liquid fertilizer to meet the fertilization requirements of different crops. The liquid outlet holes of the medicine spraying pipe 46 adopt an adjustable design to adjust the amount of sprayed medicine according to different crops.

[0038] Embodiment 3: This embodiment is improved on the basis of Embodiment 1: The control armrest 15 of the walking tractor 1 is added with an electric power assist system to reduce the labor intensity of the operator. The traveling wheels 12 adopt an adjustable tire pressure design to adapt to different terrains. The rotary tillage cutter roller 23 of the rotary tillage mechanism 2 adopts a detachable structure to facilitate the replacement of different types of blades. The support column 25 is added with a height adjustment function to meet the requirements of different operation heights. The electric energy compensation mechanism 3 is added with an energy storage management system to optimize the power distribution. The LED lights adopt intelligent induction control to automatically adjust the brightness according to the ambient light. The film roller 48 of the film laying and medicine applying mechanism 4 is added with an automatic tensioning device to ensure the smooth laying of the film. The film gathering plate 49 adopts a telescopic design to adapt to ridges of different widths.

[0039] According to the above-mentioned preferred technical solution, the working process of this technical solution is described as follows: Start the diesel engine 16, and the rotation of the diesel engine 16 drives the flywheel 17 on its side wall to rotate. The flywheel 17 transmits power to the transmission wheel 13 on the side wall of the transmission 14 through a V-belt, and then the transmission 14 starts to work. The power take-off boxes on the left and right sides of the transmission 14 transmit power to the transmission cases 22 on both sides of the rotary tillage mechanism 2 through couplings. The sprockets inside the transmission cases 22 that are connected to the output shafts on both sides of the transmission 14 rotate, and drive the sprockets connected to the left and right ends of the rotary tillage cutter roller 23 to rotate through chains, so that the rotary tillage cutter roller 23 rotates, and the rotary tillage blades on the rotary tillage cutter roller 23 perform tillage operations on the land. During the operation of the rotary tillage mechanism 2, the rollers 24 at the bottom ends of the support columns 25 at the rear side of the engine hood 21 assist the rotary tillage mechanism 2 to move on the land to ensure uniform tillage depth.

[0040] Meanwhile, the electric energy compensation mechanism 3 starts to work. The photovoltaic panel 31 receives sunlight and converts light energy into electric energy, which is stored in the storage battery at the rear side inside the frame 11 through the photovoltaic power generation adapter. The operator can adjust the angle of the photovoltaic panel 31 according to the sunlight irradiation angle through the hydraulic support rod 33. The telescopic shaft of the hydraulic support rod 33 drives the photovoltaic panel 31 to rotate around the hinge 32, and the connection between the connecting piece 34 and the side wall of the operating armrest 15 provides support for the photovoltaic panel 31. When the light is dim, the storage battery supplies power to the LED lights on the front side of the frame 11 to provide illumination. After the rotary tillage operation is completed, the operator installs the film on the film roller 48 of the film laying and medicine covering mechanism 4, and at the same time adds solvents such as liquid soil improver or liquid fertilizer into the solvent tank 42. The liquid level sensor in the solvent tank 42 monitors the solvent liquid level in real time.

[0041] Start the servo water pump. The servo water pump pumps out the solvent from the solvent tank 42 and conveys it to the medicine spraying pipe 46 through the joint. The solvent sprays out from multiple liquid outlet holes at the bottom of the medicine spraying pipe 46. The operator pushes the walking tractor 1 forward, and the driven wheel 47 moves forward accordingly. The film roller 48 rotates to release the film, and the film is laid on the land between the driven wheel 47 and the film pressing wheel 410. The bottom surface of the film pressing wheel 410 contacts the film and presses the film onto the land surface. The film gathering plates 49 at the rear sides of the left and right sides of the rectangular frame 41 gather and cover the film on both sides of the ridge as the film laying and medicine covering mechanism 4 advances. The operator can sit on the stool 43 on the top surface of the steel pipe 44 at the rear side of the support column 25 according to needs, and adjust the working posture of the film laying and medicine covering mechanism 4 by adjusting the hinge angle of the connecting rod 45 and the front end face of the rectangular frame 41 to adapt to different working requirements. During the whole operation process, each component cooperates with each other to complete a series of agricultural operations such as rotary tillage, film laying, and medicine covering.

[0042] The present invention is not limited to the above best implementation manner. Anyone should know that structural changes made under the inspiration of the present invention, as long as they have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention. Finally, it should also be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions that the present application can implement. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present application can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed in the present application can cover.

Claims

1. A multifunctional film-laying micro-tillage machine, comprising a walking tractor (1), characterized in that: The rear end of the walking tractor (1) is connected to a rotary tillage mechanism (2), the middle section of the top surface of the walking tractor (1) is provided with an electric energy compensation mechanism (3), and the rear end of the rotary tillage mechanism (2) is connected to a film-laying and medicine-covering mechanism (4); The walking tractor (1) comprises a frame (11), a diesel engine (16) fixed inside the frame (11) via machine feet, and two running wheels (12) rotatably arranged in the middle of the bottom of the frame (11); a gearbox (14) is connected to the rear end of the diesel engine (16), and a control armrest (15) is arranged at the rear end of the frame (11); The rotary tillage mechanism (2) comprises a hood (21), a transmission box (22) fixed to the left and right sides of the hood (21), and a rotary tillage blade roller (23) rotatably arranged in the inner cavity of the hood (21); The electric energy compensation mechanism (3) comprises two photovoltaic panels (31), a hydraulic support rod (33) hinged to the bottom surface of the photovoltaic panel (31), and a connecting piece (34) hinged to the telescopic axis of the hydraulic support rod (33); The film-laying and drug-coating mechanism (4) comprises a rectangular frame (41), a solvent box (42) fixed to the top surface of the rectangular frame (41), and a film roller (48) fixed to the bottom surface of the rectangular frame (41), and a drug-spraying pipe (46) is connected to the bottom port of the solvent box (42).

2. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: A flywheel (17) is rotatably disposed on the side wall of the diesel engine (16), and a transmission wheel (13) is rotatably disposed on the side wall of the gearbox (14). The transmission wheel (13) and the flywheel (17) are connected via a V-belt transmission.

3. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: Transfer cases are arranged on the left and right sides of the gearbox (14); the output shafts on the left and right sides of the transfer case are connected to the transmission case (22) via a coupling and are used to drive the rotary tiller roller (23) to rotate.

4. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: The transmission box (22) contains two sprockets connected to the output shafts on both sides of the gearbox (14), and sprockets connected to the left and right ends of the rotary tiller roller (23), and the sprockets are connected to each other through a chain transmission.

5. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: A support column (25) is welded on the rear end surface of the hood (21), and the bottom end of the support column (25) is rotatably connected to a roller (24) via a wheel axle.

6. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: Two hinges (32) are hingedly connected on the end surfaces of the photovoltaic panels (31) that are close to each other, and the hinges (32) are respectively connected to the left and right side walls of the operating armrest (15), and the side of the connecting piece (34) away from the hydraulic support rod (33) is fixedly connected to the side wall of the operating armrest (15).

7. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: A storage battery is arranged on the inner rear side of the frame (11), a power generation end of the photovoltaic panel (31) is connected to a photovoltaic power generation adapter, and an LED lamp is installed on the front side of the frame (11), and the storage battery provides electrical energy for the LED lamp.

8. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: The rear end surface of the support column (25) is fixedly connected to a steel pipe (44), the top surface of the steel pipe (44) is fixedly connected to a bench (43), the bottom surface of the steel pipe (44) is fixedly connected to a connecting rod (45), and the rear end of the connecting rod (45) is hinged to the front end surface of the rectangular frame (41) via an axle pin.

9. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: The solvent box (42) is loaded with liquid soil conditioner, liquid fertilizer and the like, and a liquid level sensor is installed inside the solvent box (42). The top surface of the solvent box (42) is provided with a liquid inlet port. A servo water pump is installed in the inner cavity of the solvent box (42). The liquid outlet of the servo water pump is connected to the top port of the spray pipe (46) through a joint. The bottom surface of the spray pipe (46) is provided with a plurality of liquid outlet holes.

10. The multifunctional film-laying micro-tillage machine according to claim 1, characterized in that: A driven wheel (47) is rotatably provided on the front side of the bottom surface of the rectangular frame (41), and a film pressing wheel (410) is rotatably connected to the rear side of the bottom surface of the rectangular frame (41). The bottom surface of the film pressing wheel (410) contacts the film. Film gathering plates (49) are fixedly connected to the rear sides of the left and right sides of the rectangular frame (41). The sides of the film gathering plates (49) that are close to each other contact the two sides of the field ridge, and the film gathering plates (49) are used to gather the film and cover the two sides of the field ridge.

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