Light and simple air-blowing type residual film recycling machine

Abstract

The utility model discloses a light and simple air-blowing type plastic film residue recycling machine, which belongs to the technical field of agricultural planting, and comprises a rack and a hob shovel rotationally connected with the rack, the bottom of the rack is provided with a film lifting shovel, the outer wall of one side of the rack is provided with a driving motor, and the outer wall of the other side of the rack is provided with a motor. A driving motor is installed on the rack, a driving roller rotationally connected with the rack is fixed to the output end of the driving motor, a driven roller is rotationally connected into the rack, a conveying belt is arranged outside the driving roller and the driven roller, a plurality of hook teeth used for conveying residual films are fixed to the outer wall of the conveying belt, and an air blowing pipeline is installed at the bottom of the rack. And a fan is mounted on the outer wall of one side of the air blowing pipe, and an air conveying box is mounted in the rack. According to the light and simple air-blowing type plastic film residue recycling machine, plastic film residues in soil can be effectively recycled, impurities in the recycled plastic film residues can be effectively cleared away, and therefore the mechanical level of plastic film residue recycling of a plough layer is improved, and healthy development of the industry is promoted.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural planting, and particularly relates to a light and simple air-blowing type residual film recycling machine. Background Technique

[0002] Using plastic film can well conserve soil moisture, maintain soil fertility, increase the yield and quality of crops. In addition, plastic film mulching can also reduce weed growth. Plastic film mulching can prevent the germination and growth of weed seeds, reduce the competition pressure of weeds on crops, and at the same time reduce the use of pesticides; improve soil structure. Plastic film mulching can improve the physical properties of the soil, increase soil air permeability and water retention, and is beneficial to the activities of soil microorganisms and the decomposition of fertilizers.

[0003] However, the plastic film remaining in the soil brings quite a lot of trouble. First, it will damage the soil structure: the residual plastic film will change or cut off the permeability of the soil, resulting in the deterioration of the physical and chemical properties of the soil; second, it will hinder the growth of crop roots. The plastic film remaining in the soil will prevent the elongation and growth of crop roots, affect the normal absorption of water and nutrients by crops, and cause a reduction in crop yield; reduce the water penetration ability: because the residual amount of agricultural film in the soil increases, the soil water content decreases, weakening the drought resistance of the soil, resulting in changes or cuts in the continuity of soil pores and a reduction in water penetration.

[0004] The harm of plastic film to the soil and crops is multi-faceted. It not only affects the growth, development and yield of crops, but also pollutes the environment. Therefore, effective measures need to be taken to reduce the harm of plastic film to the soil. So there is the recycling of residual film. Manual recycling is time-consuming and laborious, and machine recycling has become the mainstream choice.

[0005] At present, the residual film recycling machines on the market are found to be developing towards combined operation machines. For example, the comb-tooth drum type recycling machine is driven by a small tractor, and the main picking component is the comb-tooth drum. Its film picking rate is acceptable, but the design of separating film and impurities is not good, and its impurity content is relatively high; the hydraulic film raking type recycling machine has the function of pressing the film and tying it into bundles. Its film picking and film-impurity separation effects are acceptable, but it moves forward slowly and has low efficiency. Generally speaking, the residual film recycling machines on the market generally have problems such as low film picking rate, high impurity content and low efficiency, and cannot fully meet the needs of customers. Content of the Utility Model

[0006] The purpose of the utility model is to provide a light and simple air-blowing type residual film recycling machine to solve the problems of generally low film picking rate, high impurity content and low efficiency existing in the residual film recycling machines mentioned in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: a lightweight air-blowing residual film recycling machine, including a frame and a rotary cutter shovel rotatably connected to the frame. A film-lifting shovel is installed at the bottom of the frame. A driving motor is installed on the outer wall of one side of the frame, and the output end of the driving motor is fixed with a driving roller rotatably connected to the frame. A driven roller is rotatably connected inside the frame. A conveyor belt is arranged outside the driving roller and the driven roller. A plurality of hook teeth for conveying the residual film are fixed on the outer wall of the conveyor belt. A blowing pipeline is installed at the bottom of the frame, and a blower is installed on the outer wall of one side of the blowing pipeline. An air delivery box is installed inside the frame.

[0008] In a further embodiment, a film and impurity separation box is fixed on the outer wall of the air delivery box, and a film collecting box fixedly connected to the frame is arranged on one side of the film and impurity separation box.

[0009] In a further embodiment, a plurality of hook claws are horizontally fixed inside the film-lifting shovel, and the hook claws inside the film-lifting shovel and the hook teeth on the conveyor belt are arranged in a staggered manner.

[0010] In a further embodiment, a sieve plate is fixed inside the air delivery box, and a plurality of sieve holes are formed on the surface of the sieve plate.

[0011] In a further embodiment, four driving wheels are installed on the frame, and the blowing pipeline is of a Z-shaped structure.

[0012] In a further embodiment, a feeding roller is rotatably connected inside the film collecting box, and an exhaust hole is formed at the top of the film collecting box. An exhaust pipe is fixed in the exhaust hole at the top of the film collecting box.

[0013] The technical effects and advantages of the utility model:

[0014] For this lightweight air-blowing residual film recycling machine, through the setting of the rotary cutter shovel, during the process of the machine moving forward, the soil is broken up and slightly cultivated, which can quickly separate the plastic film from the soil. Cooperating with the film-lifting shovel, the soil mixed with the residual film can be quickly conveyed onto the conveyor belt. At the same time, the hook claws inside the film-lifting shovel and the hook teeth on the conveyor belt are arranged in a staggered manner. As the conveyor belt continuously runs, each row of hook teeth will intersect with the hook claws once, which can ensure that the residual film wound on the hook teeth is hooked off by the hook claws and then slides into the film and impurity separation box, greatly improving the recovery rate of the residual film. At the same time, the shredded residual film can also be better recycled;

[0015] By blowing air with the blower, according to the different specific gravities of the residual film and impurities, under the action of the same wind force, the horizontal distances they move are different, which can quickly separate the impurities in the residual film and improve the recovery effect of the residual film. This lightweight air-blowing residual film recycling machine can not only effectively recycle the residual film in the soil, but also effectively clean the impurities in the recycled residual film, thereby improving the mechanization level of the recovery of the residual film in the plough layer and promoting the healthy development of the industry. Brief Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural view of the present invention;

[0018] Figure 2 is the front view of the present invention;

[0019] Figure 3 is the top view of the present invention;

[0020] Figure 4 is the top view of the film lifting shovel of the present invention;

[0021] Figure 5 is the front view of the conveyor belt of the present invention.

[0022] In the figure: 1, frame; 2, hob shovel; 3, film lifting shovel; 4, drive motor; 5, driving roller; 6, conveyor belt; 7, hook teeth; 8, driving wheel; 9, air blowing pipeline; 10, fan; 11, air delivery box; 12, film and impurity separation box; 13, film collecting box. Detailed Description of the Embodiments

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the figures shown in the present invention, and are hereby explained together.

[0025] Please refer to Figures 1-5, the present utility model provides a lightweight and simple air-blowing type residual film recycling machine, including a frame 1 and a hob shovel 2 rotatably connected to the frame 1. The frame 1 can be connected to equipment such as a tractor to drive the frame 1 to move. Four driving wheels 8 are installed on the frame 1. The hob shovel 2 can be driven by a motor. A film-lifting shovel 3 is installed at the bottom of the frame 1. A plurality of hook claws are horizontally fixed inside the film-lifting shovel 3. A driving motor 4 is installed on an outer wall of one side of the frame 1, and an output end of the driving motor 4 is fixed with a driving roller 5 rotatably connected to the frame 1. A driven roller is rotatably connected inside the frame 1. A conveyor belt 6 is provided outside the driving roller 5 and the driven roller. A plurality of hook teeth 7 for residual film conveying are fixed on an outer wall of the conveyor belt 6. The hook claws inside the film-lifting shovel 3 and the hook teeth 7 on the conveyor belt 6 are staggered. As the conveyor belt 6 continuously runs, each row of hook teeth 7 has to be staggered with the hook claws once, which can ensure that the residual film wound on the hook teeth 7 is hooked off by the hook claws, greatly improving the residual film recovery rate. At the same time, the fragmented residual film can also be better recovered. At the same time, the hook teeth 7 on the conveyor belt 6 and the rear ends of the hook claws inside the film-lifting shovel 3 are staggered with each other. The hook teeth 7 on the conveyor belt 6 lift up the residual film and soil mixture piled up by the film-picking and film-lifting shovel 3 and transport it upward. Under the action of its own gravity and the vibration of the machine, larger soil blocks roll down along the upper surface of the conveyor belt 6, and some smaller soil particles and impurities fall into the field from the gap between the conveyor belt 6 and the hook teeth 7. At the end of the film-hanging conveyor belt 6, the residual film detaches from the film-hanging conveyor belt 6 and rolls down from above the conveyor belt 6;

[0026] When the horizontal spacing of the plurality of hook teeth 7 is too large, the number of hook teeth 7 per unit length is too small, resulting in too little hanging of the residual film on the hook teeth 7, thus causing the residual film to fall off and reducing the overall recovery rate of the residual film. When the horizontal spacing is too small, the conveyor belt 6 acts on the plastic film at more points horizontally, having a strong ability to pick up the film-hanging teeth, but the hanging residual film is too much and too dense, resulting in the difficulty of the residual film to slide off the hook teeth 7, thereby reducing the recovery rate of the residual film. In short, both too large and too small horizontal spacing will lead to a reduction in the residual film separation rate. It is known from the reference literature that the horizontal spacing of the hook teeth 7 is designed to be 2.5 mm;

[0027] When the linear velocity of the conveyor belt 6 is too large, since the residual film is not stably suspended on the hook teeth 7, the residual film will fall off, resulting in a reduction in the recovery rate. When the speed is too small, due to the relatively fast forward speed of the recycling machine, the picked-up residual film will continuously accumulate on the hook teeth 7 of the conveyor belt 6, causing congestion. Therefore, a reasonable conveyor belt speed needs to be set to effectively separate the film and impurities. Through calculation, the linear velocity of the conveyor belt 6 is 1.56 m / s. Considering that there is a certain positive correlation between the forward speed of the residual film recycling machine and the speed of the conveyor belt 6, the faster the forward speed, the faster the conveying speed should be. And based on the current operating speed of the residual film recycling machine being 5 to 7 km / h, it is stipulated that the speed of the conveyor belt 6 is between 1.39 and 1.94 m / s. Taking the speed of the recycling machine as 6 km / h, the linear velocity of the film-hanging conveyor belt 6 is determined to be 1.7 m / s;

[0028] A blowing pipeline 9 is installed at the bottom of the frame 1, and a blower 10 is installed on the outer wall of one side of the blowing pipe. The blowing pipeline 9 is of a Z-shaped structure. An air delivery box 11 is installed inside the frame 1. A sieve plate is fixed inside the air delivery box 11. Multiple sieve holes are formed on the surface of the sieve plate. Given that circular holes have better permeability and the highest space utilization rate, circular sieve holes with better penetrability are adopted. According to calculations, the diameter of the sieve holes is between 28 and 42 millimeters, and the spacing between the sieve holes is between 37.5 and 45.0 millimeters. To ensure stiffness, the sieve plate adopts large mesh holes and large edge distances. The diameter of the sieve holes is set to 40 millimeters, and they are arranged in a straight line. The hole edge distance is set to 45 millimeters. By blowing air through the blower 10, based on the different specific gravities of the residual film and impurities, under the action of the same wind force, the horizontal distances they move are different, and the impurities in the residual film can be quickly separated, improving the recycling effect of the residual film;

[0029] The principle utilized for film and impurity separation is based on the different specific gravities of the residual film and impurities. Under the action of the same wind force, the horizontal distances they move are different, that is, wind sorting. The so-called wind selection method, also known as air current sorting, refers to a method of sorting the film and impurity mixture particles by density and size under the action of an air current with air as the sorting medium;

[0030] Multiple suspension speed tests are conducted on the residues, residual stubbles, and soil clods. The suspension speed ranges of the residual film, stubble, and soil clod are 1.8 to 3.2 m / s, 5.9 to 10.2 m / s, and 8.9 to 12.8 m / s respectively. The ranges of their suspension speed changes are significantly different, and there is no overlap between the suspension speed of the residual film and that of the soil clod particles. This provides a theoretical basis for screening the film and impurity mixture. It is known from the reference literature that when the air current speed is 10 m / s, the mixture can be effectively sorted;

[0031] A film and impurity separation box 12 is fixed to the outer wall of the air delivery box 11. The film and impurity separation box 12 can block and guide the blown residual film. And a film collecting box 13 fixedly connected to the frame 1 is provided on one side of the film and impurity separation box 12. A feeding roller is rotatably connected inside the film collecting box 13, and the feeding roller can also be driven by an external motor. When the feeding roller rotates, the separated residual film can be quickly conveyed into the film collecting box 13. And an exhaust hole is provided at the top of the film collecting box 13. A exhaust pipe is fixed in the exhaust hole at the top of the film collecting box 13. The exhaust pipe can quickly discharge the gas blown into by the blower 10, ensuring that the residual film does not float around inside the film collecting box 13.

[0032] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The control mode of the present utility model is controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0034] Working principle:

[0035] When the lightweight air-blowing type residual film recycling machine is in use, the frame 1 is connected to an external power device such as a tractor to drive the frame 1 to move. Two motors respectively drive the hob shovel 2 and the conveying roller to rotate. At the same time, the driving motor 4 is started to drive the driving roller 5 to rotate, driving the conveyor belt 6 to rotate, and then the fan 10 is started;

[0036] The tractor drives the frame 1 to move in the cultivated land. The setting of the hob shovel 2 crushes the soil and slightly tills the soil during the movement of the machine, enabling the plastic film to be quickly separated from the soil. Cooperating with the film-lifting shovel 3, the soil mixed with the residual film is quickly conveyed onto the conveyor belt 6. At the same time, the hook teeth 7 on the conveyor belt 6 and the rear ends of the hook claws in the film-lifting shovel 3 are interlaced with each other. The hook teeth 7 on the conveyor belt 6 lift the mixture of residual film and soil piled up by the film-picking and film-lifting shovel 3 and transport it upward. Under the action of its own gravity and the vibration of the machine, larger soil blocks roll down along the upper surface of the conveyor belt 6, and some smaller soil particles and impurities fall into the field from the gap between the conveyor belt 6 and the hook teeth 7. At the end of the film-hanging conveyor belt 6, the residual film detaches from the film-hanging conveyor belt 6 and rolls down from above the conveyor belt 6. As the conveyor belt 6 continuously runs, each row of hook teeth 7 has to be interlaced with the hook claws once, which can ensure that the residual film wound on the hook teeth 7 is hooked off by the hook claws and then slides into the film and impurity separation box 12, greatly improving the residual film recovery rate, and at the same time, the shredded residual film can also be better recovered;

[0037] By blowing air through the fan 10, according to the different specific gravities of the residual film and impurities, under the action of the same wind force, the horizontal distances they move are different, quickly separating the impurities in the residual film, improving the recovery effect of the residual film. When the feeding roller rotates, the separated residual film is quickly conveyed into the film collecting box 13 to complete the recovery of the residual film.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light and simple air-blowing residual film recovery machine, comprising a frame (1) and a roller shovel (2) rotatably connected to the frame (1), characterized in that: A film scraper (3) is installed at the bottom of the frame (1), a driving motor (4) is installed on the outer wall of one side of the frame (1), and an active roller (5) rotatably connected to the frame (1) is fixed to the output end of the driving motor (4), a driven roller is rotatably connected inside the frame (1), a conveyor belt (6) is provided outside the active roller (5) and the driven roller, and a plurality of hook teeth (7) for conveying residual film are fixed to the outer wall of the conveyor belt (6), an air blowing pipe (9) is installed at the bottom of the frame (1), and a fan (10) is installed on the outer wall of one side of the air blowing pipe, and an air supply box (11) is installed inside the frame (1).

2. The light-weight air-blowing residual film recycling machine according to claim 1 is characterized in that: A film-impurity separation box (12) is fixed to the outer wall of the air delivery box (11), and a film collecting box (13) fixedly connected to the frame (1) is provided on one side of the film-impurity separation box (12).

3. The light-weight air-blowing residual film recycling machine according to claim 1 is characterized in that: A plurality of hook claws are transversely fixed in the film-lifting shovel (3), and the hook claws in the film-lifting shovel (3) and the hook teeth (7) on the conveyor belt (6) are arranged in a staggered manner.

4. The light-weight air-blowing residual film recycling machine according to claim 2 is characterized in that: A sieve plate is fixed inside the air delivery box (11), and a plurality of sieve holes are formed on the surface of the sieve plate.

5. The light-weight air-blowing residual film recycling machine according to claim 1 is characterized in that: Four driving wheels (8) are installed on the frame (1), and the air blowing pipeline (9) is a Z-shaped structure.

6. The light-weight air-blowing residual film recycling machine according to claim 2 is characterized in that: A feeding roller is rotatably connected inside the film collecting box (13), and an exhaust hole is opened on the top of the film collecting box (13), and an exhaust pipe is fixed in the exhaust hole on the top of the film collecting box (13).

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