Residual film recycling machine

Abstract

The invention relates to the field of collecting machines for removing sundries in soil, in particular to a plastic film residue recycling machine. The plastic film residue recycling machine comprises a machine frame, a soil crushing and shoveling mechanism, a grid type conveyor, a screening roller, a collecting mechanism and a draught fan are arranged on the machine frame, the soil crushing and shoveling mechanism is arranged at the front end of the machine frame, and the grid type conveyor is located between the soil crushing and shoveling mechanism and the screening roller. The soil crushing and shoveling mechanism conveys materials shoveled by the soil crushing and shoveling mechanism to the screening roller, the screening roller is used for separating and screening the materials, the collecting mechanism is located behind the screening roller and is used for collecting at least part of the screened materials, and the draught fan is located above the grid type conveying mechanism and used for conveying the materials to the screening roller. And an air outlet of the fan faces the interior of the screening roller. In this way, when the draught fan works, the light plastic film residues in the screening roller can be blown to the collecting mechanism behind, so that the plastic film residues are efficiently and rapidly recycled.

Description

Technical Field

[0001] This invention relates to the field of collection machines for removing impurities from soil, and more specifically to a residual film recycling machine. Background Technology

[0002] In agricultural production, plastic film is often laid on farmland to achieve purposes such as heat preservation, moisture retention, weed control, and crop yield promotion. After its current use period, the plastic film needs to be recycled to avoid its impact on the soil environment. In the past, manual collection was the primary method, but this method is inefficient and costly, making it unsuitable for large-scale operations.

[0003] To improve the efficiency of residual film recycling, residual film recycling machines have been introduced to the market. Existing machines utilize a screening drum to sift through mixtures containing soil, residual film, stones, etc., to enhance recycling efficiency. Soil is sieved off through the screen on the drum, while the remaining residual film is collected in a collection mechanism at the rear of the screening drum. However, during the recycling process, some residual film and soil may adhere together due to moisture or prolonged compression. This adhesion makes separation of the film and soil difficult within the screening drum, leading to longer recycling times and impacting the overall efficiency of the machine. Summary of the Invention

[0004] The purpose of this invention is to provide a residual film recycling machine to solve the problem that existing residual film recycling machines require a long time to recycle residual film, which affects the recycling efficiency.

[0005] A residual film recycling machine of the present invention includes a frame, on which a soil crushing and collecting mechanism, a grid conveying mechanism, a screening mechanism, a collecting mechanism, and a blower are arranged. The screening mechanism includes a screening drum. The soil crushing and collecting mechanism is located at the front end of the frame. The grid conveying mechanism is located between the soil crushing and collecting mechanism and the screening drum and is configured to transport the material collected by the soil crushing and collecting mechanism to the screening drum. The screening drum is configured to separate and screen the material. The collecting mechanism is located after the screening drum and is configured to collect at least a portion of the screened material. The blower is located above the grid conveying mechanism and the blower outlet faces the interior of the screening drum.

[0006] Furthermore, the air outlet of the blower is arranged at an angle towards the upper part of the screening drum.

[0007] Furthermore, the frame includes a crossbeam located in front of the screening drum, and the fan is mounted on the crossbeam.

[0008] Furthermore, the soil breaking and collecting mechanism includes a shovel and a rotary tillage roller. The shovel is located on the lower front edge of the frame, and the rotary tillage roller is located above the shovel and arranged horizontally. Both ends of the rotary tillage roller are rotatably connected to the frame.

[0009] Furthermore, the surface of the rotary tillage roller is provided with a wear-resistant layer.

[0010] Furthermore, the wear-resistant layer is a tungsten carbide wear-resistant layer.

[0011] Furthermore, the frame is configured to be connected to a traction machine, and the rotary tiller is connected to the drive shaft of the traction machine via a universal joint.

[0012] Furthermore, the soil breaking and collecting mechanism includes a shovel and a plowing harrow. The shovel is located on the lower front edge of the frame, and the plowing harrow is located above the shovel, with the harrow teeth extending in front of the shovel.

[0013] Furthermore, the screening drum is a conical cylinder, and the diameter of the cylinder near the front end of the grid conveying mechanism is smaller than the diameter of the cylinder near the rear end of the collecting mechanism.

[0014] Furthermore, wheels are mounted on the frame, and the wheels are mounted on the frame via an adjustable telescopic frame.

[0015] This invention proposes a pioneering technical solution to address the problems existing in the above-mentioned technical solutions. The core concept of this invention is: a fan is installed on the upper part of the grid conveying mechanism on the frame of the residual film recycling machine, and the air outlet of the fan faces the inside of the screening drum. In this way, when the fan is working, it can blow the light residual film in the screening drum towards the collection mechanism at the rear, so as to achieve efficient and rapid recycling of residual film. In order to ensure the effective screening of light residual film by the fan, a soil crushing and collecting mechanism is set in front of the frame of the residual film recycling machine to break the adhesion between the soil and the residual film. After the soil crushing and collecting mechanism, the grid conveying mechanism is used to transport the material to the screening drum, so that the fine soil is screened off when passing through the grid conveying mechanism, while the stubble, stones, residual film and residual clumps of soil are transported to the screening drum at the rear. Stones, stubble and clumps of soil are not easily blown up. At this time, the fan can efficiently blow the residual film to the rear, thus improving the overall screening effect of the fan on light residual film. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a residual film recycling machine according to the present invention; Figure 2 This is a structural schematic diagram of a residual film recycling machine according to another perspective of the present invention; Figure 3 This is a structural diagram showing the layout of the screening drum and the blower.

[0017] In the diagram: 1. Frame; 2. Rotary tillage roller; 3. Shovel; 4. Grid conveyor mechanism; 5. Screening drum; 6. Collection mechanism; 7. Fan; 8. Wheel; 9. Traction frame; 10. Main drive reducer; 11. Screen cylinder reducer; 12. Sprocket; 13. Transmission protective cover; 14. Adjustable telescopic frame; 15. Hydraulic cylinder; 16. Chain; 17. Rotary handle. Detailed Implementation

[0018] This invention proposes a pioneering technical solution to address the problems existing in the above-mentioned technical solutions. The core concept of this invention is: a fan is installed on the upper part of the grid conveying mechanism on the frame of the residual film recycling machine, and the air outlet of the fan faces the inside of the screening drum. In this way, when the fan is working, it can blow the light residual film in the screening drum towards the collection mechanism at the rear, so as to achieve efficient and rapid recycling of residual film. In order to ensure the effective screening of light residual film by the fan, a soil crushing and collecting mechanism is set in front of the frame of the residual film recycling machine to break the adhesion between the soil and the residual film. After the soil crushing and collecting mechanism, the grid conveying mechanism is used to transport the material to the screening drum, so that the fine soil is screened off when passing through the grid conveying mechanism, while the stubble, stones, residual film and residual clumps of soil are transported to the screening drum at the rear. Stones, stubble and clumps of soil are not easily blown up. At this time, the fan can efficiently blow the residual film to the rear, thus improving the overall screening effect of the fan on light residual film.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings: A residual film recycling machine of the present invention includes, as follows Figure 1 , Figure 2The frame 1 shown has a soil crushing and collecting mechanism at its front end for crushing and collecting soil. The frame 1 also has a grid conveying mechanism 4, a screening mechanism, a collecting mechanism 6, and a blower 7. The screening mechanism includes a screening drum 5. The grid conveying mechanism 4 is located between the soil crushing and collecting mechanism and the screening drum 5 and is configured to transport the material collected by the soil crushing and collecting mechanism to the screening drum 5. The collection box is located at the rear end of the screening drum 5. The soil crushing and collecting mechanism at the front end is used to crush soil, stubble, and residual film during operation, breaking up the adhesion between them and preventing clumping. Simultaneously, this mechanism continuously collects soil, stubble, stones, and residual film onto the rear grid conveyor mechanism 4. The grid conveyor mechanism 4 includes front and rear drive wheels and a grid conveyor belt. Gaps exist between the grid bars of the conveyor belt for soil to be screened off. As the soil, stubble, stones, and residual film are conveyed on the grid conveyor mechanism 4, fine soil particles fall through the gaps between the grid bars into the soil below. Stubble, stones, residual film, and remaining clumps of soil are conveyed by the grid conveyor mechanism 4 to the rear screening drum 5. The screening drum 5 is equipped with a screen and rotates during operation. Stubble, stones, clumps of soil, and residual film enter the screening drum 5 and rotate with it. The blower 7 is located above the grid conveyor mechanism 4, and the air outlet of the blower 7 faces the inside of the screening drum 5. When the blower 7 is working, stones, stubble, and clumps of soil are not easily blown up, and the lightweight residual film inside the screening drum 5 is blown by the airflow of the blower 7 to the film collection mechanism at the rear. In this way, the residual film is efficiently and quickly recovered, greatly shortening the time required for residual film recovery.

[0020] In this embodiment, the blower 7 is positioned above the tail end of the grid conveyor mechanism 4. In this case, only the lightweight residual film inside the screening drum 5 can be screened. In another embodiment, the blower can be moved forward to above the middle part of the grid conveyor mechanism. In this case, the blower can screen the residual film on the rear half of the grid conveyor mechanism to reduce the time required for residual film recovery.

[0021] The residual film recycling machine is towed by a tractor. The frame 1 of the residual film recycling machine includes a towing frame 9 located above the soil crushing and collecting mechanism. The tractor tows the residual film recycling machine through the towing frame 9. To ensure coordinated operation between the tractor and the residual film recycling machine, corresponding transmission structures are usually set on the tractor and the residual film recycling machine so that the tractor's output shaft directly drives the grid conveying mechanism 4 and the screening drum 5 on the residual film recycling machine. Specifically, a screen cylinder reducer 11 and a sprocket 12 for driving the screening drum 5 are set on the side of the frame 1. A chain 16 for meshing with the sprocket 12 is set on the outside of the screening drum 5. The tractor's power output shaft is directly connected to the screen cylinder reducer 11 through a universal joint. Thus, when the tractor is working, the tractor's power output shaft will rotate and transmit the rotation to the screen cylinder reducer 11 through the universal joint. The screen cylinder reducer 11 drives the sprocket 12 to rotate, and the chain 16 on the screening drum 5 meshes with the sprocket 12, also driving the screening drum 5 to rotate.

[0022] A main drive reducer 10 is mounted on the frame 1 via a mounting beam. A sprocket drive mechanism is located on the outer side of the frame 1. The front sprocket of the sprocket drive mechanism is connected to the output shaft of the main drive reducer 10 via a drive shaft. The rear sprocket of the sprocket mechanism is connected to one of the drive wheels of the grid conveyor mechanism via a drive shaft. The tractor's power take-off shaft is connected to the main drive reducer 10 via a universal joint. When the tractor is working, the tractor's power take-off shaft rotates and transmits the rotation to the main drive reducer 10 via the universal joint. The output shaft of the main drive reducer 10 rotates, and the front sprocket of the sprocket mechanism rotates accordingly. The motion is then transmitted to the rear sprocket via a chain, and the drive wheel of the grid conveyor mechanism, coaxially connected to the rear sprocket, also rotates. To prevent damage to the sprocket drive mechanism, additional features are provided on the sprocket drive mechanism, such as... Figure 2 The transmission protective cover 13 shown.

[0023] The collection mechanism 6 is a film collection box, and a hydraulic cylinder 15 is installed between the film collection box and the frame 1. After the film collection box is full of residual film, the film can be unloaded by driving the hydraulic cylinder 15.

[0024] like Figure 3 As shown, the air outlet of the blower 7 is inclined upwards towards the upper part of the screening drum 5. Root stubble and stones, being heavier, tend to concentrate in the lower part of the screening drum 5 during tumbling, while the residual film, being extremely light, tends to concentrate in the upper part. Thus, the inclined air outlet towards the upper part of the screening drum 5 causes the airflow generated by the blower 7 to be directed upwards. This upward-directed airflow directly acts on the upper part of the screening drum 5, thereby quickly and efficiently blowing the residual film inside the screening drum 5 towards the collection mechanism 6.

[0025] The frame 1 includes a crossbeam located in front of the screening drum 5, and the blower 7 is mounted on the crossbeam. In this embodiment, the blower 7 is welded to the crossbeam. In other embodiments, the blower 7 may also be bolted to the crossbeam.

[0026] The soil breaking and collecting mechanism includes a shovel 3 and a rotary tiller 2. The shovel 3 is located on the lower front edge of the frame 1, and the rotary tiller 2 is located above the shovel 3 and arranged horizontally. Both ends of the rotary tiller 2 are rotatably connected to the frame 1. The rotary tiller 2 includes a cutter shaft, both ends of which are rotatably mounted on the frame 1. Rotary tiller blades are provided on the cutter shaft. The rotary tiller blades can be straight blades, evenly distributed on the cutter shaft, or spiral blades arranged along the spiral line of the cutter shaft, as long as the soil breaking effect is reliable. The rotary tiller 2 has a high soil disturbance degree, and is especially suitable for plots with severe soil compaction and deep embedded residual film. During use, the shovel 3 shovels up the soil, and the rotary tiller 2 can deeply break up the soil, stubble, and residual film, which facilitates the initial screening of the soil on the grid conveyor mechanism 4, and significantly improves the overall efficiency of residual film recovery.

[0027] The rotary tiller roller 2 has a wear-resistant layer on its surface. During operation, the rotary tiller roller 2 directly rubs and impacts with highly abrasive materials such as soil, gravel, and stubble. The wear-resistant layer effectively resists wear from hard particles, reducing the frequency of replacement and maintenance, thus lowering overall operating costs. Specifically, the wear-resistant layer is a tungsten carbide wear-resistant layer. This tungsten carbide wear-resistant layer gives the rotary tiller roller 2 extremely high wear resistance and excellent impact resistance, significantly improving its service life. In other embodiments, the wear-resistant layer may be a titanium nitride wear-resistant layer or an alumina wear-resistant layer.

[0028] The frame 1 is configured to connect to the traction machine, and the rotary tiller 2 is connected to the drive shaft of the traction machine via a universal joint. In this way, the operation of the rotary tiller 2 is directly proportional to the travel speed of the traction machine, ensuring continuous operation; it also facilitates the driving of the rotary tiller 2, simplifying the structure and saving costs compared to a separate drive unit.

[0029] The screening drum 5 is a conical cylinder, with the diameter of the cylinder near the front end of the grid conveying mechanism 4 being smaller than the diameter of the cylinder near the rear end of the collecting mechanism 6. The overall conical shape of the screening drum 5 facilitates material dispersion during movement. In this embodiment, the screening drum 5 is placed horizontally, thus allowing residual film, stubble, and stones inside the screening drum 5 to be screened out along the inner wall of the drum.

[0030] like Figure 1 , Figure 2As shown, the wheel 8 is mounted on the frame via an adjustable telescopic frame 14. Specifically, the telescopic frame 14 includes an inner column and an outer cylinder fitted outside the inner column. The top of the inner column is provided with a threaded hole. The telescopic frame 14 also includes a screw with a rotating handle 17 on its top. The screw passes through the top surface of the outer cylinder and is screwed into the threaded hole of the inner column. Thus, by turning the rotating handle 17, the distance between the wheel 8 and the frame can be adjusted, thereby adjusting the distance between the blade, the rotary tiller 2 and the bottom surface.

[0031] Regarding the soil crushing and collecting mechanism, the present invention also provides another embodiment. In this embodiment, the soil crushing and collecting mechanism includes a shovel and a harrow. The shovel is disposed on the lower front edge of the frame, and the harrow is located above the shovel, with its teeth extending in front of the shovel. Thus, during operation, the harrow first crushes the soil, and then the shovel collects the crushed soil into a rear-mounted conveyor mechanism. This facilitates the initial screening of the soil by the conveyor mechanism 4, significantly improving the overall efficiency of residual film recovery.

[0032] Regarding the arrangement of the blower outlet, the present invention also provides another embodiment. In this embodiment, the blower outlet is arranged towards the center of the screening drum, as long as it can blow the light residual film towards the film collection box when the blower is working.

[0033] Regarding the driving of the rotary tiller, the present invention also provides other embodiments. In another embodiment, the rotary tiller is equipped with a motor, which drives the rotation of the rotary tiller.

[0034] Regarding the structure of the screening drum, the present invention also provides other embodiments. In another embodiment, the screening drum is a straight cylindrical body with the same front diameter and rear diameter. In this case, the screening drum needs to be arranged at an angle so that the residual film can be screened out backward along the inner wall of the screening drum.

[0035] Regarding the installation of the wheels, the present invention also provides other embodiments, in which the wheels are directly rotatably mounted on the frame.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. The scope of protection of this application should be determined by the scope of the claims. Although this application has disclosed the preferred embodiment above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall fall within the scope of the technical solution of this application.

Claims

1. A residual film recycling machine, characterized in that: The system includes a frame (1), on which a soil crushing and collecting mechanism, a grid conveying mechanism (4), a screening mechanism, a collection mechanism (6), and a blower (7) are provided. The screening mechanism includes a screening drum (5). The soil crushing and collecting mechanism is located at the front end of the frame (1). The grid conveying mechanism (4) is located between the soil crushing and collecting mechanism and the screening drum (5) and is configured to transport the material collected by the soil crushing and collecting mechanism to the screening drum (5). The screening drum (5) is configured to separate and screen the material. The collection mechanism (6) is located after the screening drum (5) and is configured to collect at least a portion of the screened material. The blower (7) is located above the grid conveying mechanism (4) and the air outlet of the blower (7) faces the inside of the screening drum (5).

2. The residual film recycling machine according to claim 1, characterized in that: The air outlet of the blower (7) is arranged at an angle to the upper part of the screening drum (5).

3. The residual film recycling machine according to claim 1 or 2, characterized in that: The frame (1) includes a crossbeam located in front of the screening drum (5), and the fan (7) is mounted on the crossbeam.

4. The residual film recycling machine according to claim 1 or 2, characterized in that: The soil breaking and collecting mechanism includes a shovel (3) and a rotary tillage roller (2). The shovel (3) is located on the lower front side of the frame (1), and the rotary tillage roller (2) is located above the shovel (3) and is arranged horizontally. The two ends of the rotary tillage roller (2) are rotatably connected to the frame (1).

5. The residual film recycling machine according to claim 4, characterized in that: The surface of the rotary tiller (2) is provided with a wear-resistant layer.

6. The residual film recycling machine according to claim 5, characterized in that: The wear-resistant layer is a tungsten carbide wear-resistant layer.

7. The residual film recycling machine according to claim 4, characterized in that: The frame (1) is configured to be connected to the traction machine, and the rotary tiller (2) is connected to the drive shaft of the traction machine via a universal joint.

8. The residual film recycling machine according to claim 1 or 2, characterized in that: The soil breaking and collecting mechanism includes a shovel (3) and a plowing rake. The shovel (3) is located on the lower front side of the frame (1), and the plowing rake is located above the shovel (3) with the rake teeth extending in front of the shovel (3).

9. The residual film recycling machine according to claim 1 or 2, characterized in that: The screening drum (5) is a conical cylinder, and the diameter of the cylinder near the front end of the grid conveying mechanism (4) is smaller than the diameter of the cylinder near the rear end of the collecting mechanism (6).

10. The residual film recycling machine according to claim 1 or 2, characterized in that: The frame (1) is equipped with wheels (8), which are mounted on the frame (1) via an adjustable telescopic frame (14).

Images