Agricultural mulching film recycling device

Abstract

The utility model belongs to plastic film recycling technical field, concretely relates to an agricultural mulching film recycling device, including the broken bin, the inside of broken bin is provided with the broken chamber, and the outside wall of broken bin is equipped with the hopper, this hopper is linked with broken chamber, screening bin, screening bin is located the bottom of broken bin, the inside of this screening bin is provided with the screening chamber that is linked with broken chamber, its purpose lies in, through the pressure material ring and pressure material groove of pressure material roller surface and cooperate the setting of pressure material board, can utilize shear force and realize the preliminary broken of the mulching film, and make the mulching film and pressure material roller more closely contact through the pressure of pressure material board, extrude the caked soil and make it broken loose simultaneously, in order to improve the problem that the mulching film and pressure material part contact insufficiently, broken efficiency is low in traditional processing, help to promote the mulching film broken effect and processing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of plastic film recycling technology, specifically relating to an agricultural mulch film recycling and processing device. Background Technology

[0002] In agricultural planting, plastic film is widely used. It can effectively maintain soil temperature, reduce water evaporation, inhibit weed growth, and create favorable conditions for crop growth. After planting, the plastic film in the field needs to be recycled to prevent it from polluting the field.

[0003] Currently, recycled plastic film is usually reused after decomposition, such as being refined into plastic pellets for manufacturing new plastic products. However, the recycled plastic film may contain a large amount of impurities such as soil and stones. If these impurities are not effectively separated, they will affect the efficiency of subsequent decomposition and reuse of the plastic film. Utility Model Content

[0004] In view of this, the present invention provides an agricultural mulch film recycling and processing device, the purpose of which is to pre-treat the mulch film before decomposition, and to separate the mulch film from the soil and stones adhering to its surface, thereby helping to reduce the impurities carried by the mulch film during decomposition, in order to improve the reuse efficiency of the mulch film.

[0005] The technical solution adopted in this utility model is as follows: An agricultural mulch film recycling and processing device includes a crushing chamber with a crushing cavity inside and a hopper on the outer wall of the crushing chamber, the hopper being connected to the crushing cavity; a screening chamber located at the bottom of the crushing chamber, with a screening cavity inside that is connected to the crushing cavity; a pressing roller inside the crushing cavity, the surface of the pressing roller being provided with a plurality of pressing rings, with a pressing groove formed between two adjacent pressing rings; and a scraper on the inner wall of the crushing cavity, the scraper abutting against the surface of the pressing roller.

[0006] As a preferred technical solution, the scraping component includes: a scraper, one side of which is connected to the inner wall of the crushing chamber in the width direction, and the other side of which abuts against the pressing ring, and the scraper and the pressing roller are of equal length; a convex plate, which is disposed on the side of the scraper that abuts against the pressing roller, and the convex plate is fitted with the pressing groove; wherein, the number of convex plates corresponds to the number of pressing grooves.

[0007] In some embodiments, the device further includes: a pressure plate disposed at the top of the crushing chamber and above the pressure roller; and a lifting arm disposed between the pressure plate and the crushing chamber, the lifting arm being adapted to drive the pressure plate to perform reciprocating lifting motion.

[0008] In some embodiments, the bottom of the screening chamber is provided with a screen, and the bottom of the screen is provided with a slag discharge port, which extends through the screening chamber.

[0009] In some embodiments, the edges of the screen are provided with a vibrating element and a buffer portion, wherein the vibrating element is located at the top of the edge of the screen and the buffer portion is located at the bottom of the edge of the screen.

[0010] In some embodiments, the vibrating element includes a vibrating rod and a piston rod, one end of the vibrating rod abutting against the top of the edge of the screen, and the other end connected to the piston rod, which is externally connected to a driving element.

[0011] In some embodiments, the buffer includes: a telescopic rod, one end of which is connected to the bottom of the edge of the screen; a sleeve, the sleeve having a cavity extending along its length, the other end of which is inserted into the cavity; and a spring, which is located between the top of the screen and the sleeve, and is sleeved on the telescopic rod.

[0012] In some embodiments, a clamping groove is provided on the inner wall of the screening chamber, the clamping groove extends along the height direction of the screening chamber, and a limiting post is provided at the edge of the screen, the limiting post being inserted into the clamping groove.

[0013] In some embodiments, a guide plate is further provided on the inner wall of the screening chamber, the guide plate being located at the connection between the screening chamber and the crushing chamber, wherein the guide plate is inclined.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. This utility model, through the setting of the pressing ring and pressing groove on the surface of the pressing roller, and the matching pressing plate, can use shearing force to achieve initial crushing of the mulch film. At the same time, the pressure of the pressing plate makes the mulch film and the pressing roller more closely contact each other, and squeezes the clumps of soil to break them up and loosen them. It is expected to improve the problem of insufficient contact between the mulch film and the pressing components and low crushing efficiency in traditional treatment, thereby improving the mulch film crushing effect and treatment efficiency.

[0015] 2. The scraping component structure, consisting of a scraper and a convex plate, allows the arc surface of the scraper to fit against the pressure ring and the convex plate to be embedded in the pressure groove. This enables real-time cleaning of residual damp mud and impurities on the surface of the pressure roller and inside the groove, helping to prevent the pressure roller from getting stuck due to the accumulation of impurities or the pressure groove from becoming clogged. This ensures that the pressure roller operates continuously and stably, extending the service life of the components.

[0016] 3. Through the setup of the screen, vibrator, and buffer section in the screening chamber, the vibrator can intermittently or continuously strike the screen to make it vibrate, causing impurities such as soil particles and small stones to be discharged from the slag discharge port through the screen holes, while the plastic film fragments remain on the screen, achieving efficient separation of plastic film and impurities; the telescopic rod and spring of the buffer section can absorb the vibration impact force, and together with the limiting column and clamping groove, prevent the screen from vibrating and shifting, ensuring the stability of the screening process and improving the accuracy of impurity separation. Attached Figure Description

[0017] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is an external view of the agricultural mulch film recycling and processing device provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of the agricultural mulch film recycling and processing device provided by this utility model; Figure 3 This utility model provides Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the pressure roller provided by this utility model; Figure 5 This is a schematic diagram of the scraper provided by this utility model.

[0018] 1. Crushing chamber; 2. Hopper; 3. Screening chamber; 4. Slag discharge port; 5. Pressure roller; 6. Scraper; 7. Pressure plate; 8. Lifting arm; 9. Guide plate; 10. Screen; 11. Vibrator; 12. Buffer section; 13. Spring; 14. Limiting post; 15. Gutter; 16. Pressure groove; 17. Convex plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1 In existing technologies, recycled plastic film typically needs to undergo decomposition for reuse, such as further processing into plastic granules for the production of new plastic products. However, during the recycling process, plastic film easily becomes mixed with a large amount of impurities such as soil and stones. If these impurities are not effectively separated, it will directly affect the smooth progress of subsequent plastic film decomposition processes, while also reducing the efficiency of its reuse and the quality of the finished product.

[0021] Therefore, in order to solve the problem that existing agricultural mulch film mixes with soil, stones, and other debris after recycling, thus affecting its recycling rate, and to achieve the function of separating debris from the mulch film and improving the decomposition and utilization efficiency of the mulch film, this utility model discloses an agricultural mulch film recycling and processing device, see reference. Figures 1-2 The system includes a crushing chamber 1, which has a crushing chamber inside and a hopper 2 on its outer side wall, which communicates with the crushing chamber; a screening chamber 3, which is located at the bottom of the crushing chamber 1 and has a screening chamber inside that communicates with the crushing chamber; a pressing roller 5 inside the crushing chamber, which has several pressing rings on its surface, with a pressing groove 16 formed between two adjacent pressing rings; and a scraper on the inner wall of the crushing chamber, which abuts against the surface of the pressing roller 5.

[0022] In this embodiment, the recycled plastic film is placed into the crushing chamber through the hopper 2. Then, the plastic film is initially crushed by the shearing force generated by the rotation of the pressure roller 5, which loosens the soil, stones and other impurities adhering to the plastic film. During this process, the scraper is always in contact with the surface of the pressure roller to scrape off the soil, stones and other impurities that may be adsorbed on the pressure roller 5, preventing impurities from affecting the normal rotation of the pressure roller and the crushing effect on the plastic film. The mixture of plastic film and impurities after being crushed by the pressure roller falls into the screening bin below.

[0023] It is understood that the pressure roller 5 is a cylinder with transmission arms at both ends along its length. The transmission arms are controlled by an external drive device, such as a motor. There are two pressure rollers 5, which are arranged opposite each other in the crushing chamber. The pressure rings and pressure grooves 16 on the surfaces of the two pressure rollers 5 are staggered, so that the pressure ring on one pressure roller 5 is embedded in the pressure groove 16 of the other pressure roller 5.

[0024] In addition, an appropriate gap is left between the two pressing rollers 5, which helps to allow the plastic film and debris to enter the pressing trough 16 and be broken up.

[0025] Example 2 Based on Example 1, when damp soil adheres to the mulch film, the pressing roller 5 may cause the pressing groove 16 to become clogged with soil during the mulch film crushing process, thus affecting the crushing effect. To solve the above problem, refer to... Figures 4-5 The scraping component includes: a scraper 6, one side of which is connected to the inner wall of the crushing chamber and the other side abuts against the pressing ring, and the scraper 6 and the pressing roller 5 are of equal length; a convex plate 17, which is disposed on the side of the scraper 6 that abuts against the pressing roller 5, and the convex plate 17 is fitted with the pressing groove 16; wherein the number of convex plates 17 corresponds to the number of pressing grooves 16.

[0026] In this embodiment, when the pressure roller rotates, the convex plate on the scraper will embed into the pressure groove to scrape away any damp soil or other impurities that may be present in the pressure groove, ensuring the pressure groove is unobstructed. This is intended to reduce the adverse effects on the mulch film caused by blockage of the pressure groove 16. At the same time, since the scraper and the pressure roller are of equal length, it helps to clean the entire surface of the pressure roller.

[0027] Furthermore, the scraper has an arc-shaped structure on one side of the pressure ring. This design helps the scraper 6 adapt to the curvature of the pressure roller surface, thereby improving the scraping effect and reducing wear on the pressure roller during the scraping process.

[0028] Example 3 Based on Example 2, in order to improve the contact efficiency between the mulch film and the pressing roller 5, refer to... Figure 2 The present invention also includes a pressure plate 7, which is disposed at the top of the crushing chamber and above the pressure roller 5; and a lifting arm 8, which is disposed between the pressure plate 7 and the crushing chamber, and is adapted to drive the pressure plate 7 to perform reciprocating lifting motion.

[0029] Specifically, the pressure plate 7, driven by the lifting arm 8, pushes the plastic film entering the crushing chamber towards the pressure roller 5, allowing the plastic film to make more thorough contact with the pressure roller 5, thereby improving the crushing efficiency of the plastic film. In a specific embodiment, when plastic film enters the crushing chamber through the hopper 2, the lifting arm 8 drives the pressure plate 7 to descend, applying pressure to the plastic film. As the pressure roller 5 rotates, both the plastic film and impurities are gradually crushed.

[0030] In addition, the pressure of the pressing plate 7 can initially squeeze the clumps of soil, which helps to successfully complete the final separation of the plastic film and debris.

[0031] Understandably, the lifting arm 8 has an external drive unit, which can be either a motor or a cylinder.

[0032] Example 4 Based on any one of the embodiments from Example 1 to Example 3, after the local film and debris are broken, they can enter the screening chamber from the crushing chamber, and then pass through the screen 10 to screen the broken small stones and mud to the slag discharge port 4, and finally be discharged from the slag discharge port 4. Specifically, the bottom of the screening chamber is provided with a screen 10, and the bottom of the screen 10 is provided with a slag discharge port 4, which is connected to the screening bin 3.

[0033] In this embodiment, the screen 10 in the screening chamber 3 can screen the mixture of plastic film fragments and debris particles. Smaller debris particles, such as soil particles, fall through the holes on the screen 10 and are discharged from the slag discharge port 4, while the plastic film fragments remain on the screen 10.

[0034] Furthermore, to prevent the screen 10 from being clogged by impurities during the screening process and affecting the screening effect, the vibrating component 11 includes a vibrating rod and a piston rod. One end of the vibrating rod abuts against the top edge of the screen 10, and the other end is connected to the piston rod. The piston rod is externally connected to a driving component. Under the action of the driving component (which can be a cylinder), the vibrating component 11 set at the edge of the screen 10 drives the vibrating rod to intermittently or continuously vibrate the top edge of the screen 10 through the piston rod, causing the screen 10 to vibrate and causing the impurities stuck in the holes of the screen 10 to fall off.

[0035] Meanwhile, the buffer part 12 at the bottom edge of the screen 10 plays a buffering role. The buffer part 12 includes a telescopic rod, one end of which is connected to the bottom edge of the screen 10; a sleeve, the inside of which has a cavity extending along its length, and the other end of the telescopic rod is inserted into the cavity; and a spring 13, which is located between the top of the screen 10 and the sleeve, and is sleeved on the telescopic rod. When the screen 10 is vibrated, the telescopic rod can extend and retract within the sleeve, and the spring is compressed or stretched, reducing the damage to the screen 10 caused by the vibration and maintaining the stability of the device.

[0036] It should be noted that the length of the telescopic rod is less than the length of the internal cavity of the sleeve, and the outer wall of the telescopic rod is provided with a guide strip extending along its length. The inner wall of the sleeve is provided with a guide groove that matches the guide strip. This design helps to prevent the telescopic rod from shaking due to the spring rebound when under force.

[0037] Example 5 Based on Embodiment 4, in order to further improve the stability of the screen 10 when it is vibrated, a clamping groove 15 is provided on the inner wall of the screening chamber. The clamping groove 15 extends along the height direction of the screening chamber 3. A limiting post 14 is provided at the edge of the screen 10, and the limiting post 14 is inserted into the clamping groove 15.

[0038] In this embodiment, the limiting post 14 at the edge of the screen 10 is inserted into the groove 15 in the inner wall of the screening chamber, which limits the screen 10 and prevents the screen 10 from shifting during vibration.

[0039] In addition, a guide plate 9 is provided on the inner wall of the screening chamber. The guide plate 9 is located at the connection between the screening chamber and the crushing chamber. The guide plate 9 is inclined. The setting of the guide plate 9 is conducive to the smooth sliding of the crushed mulch film and impurity mixture onto the screen 10. Its inclined setting helps to avoid the mulch film and impurity mixture from clogging in the device and improves the screening efficiency.

[0040] In summary, based on Examples 1 to 5, the working steps of this agricultural mulch film recycling and processing device are as follows: First, start the device and complete the pre-treatment check. Confirm that the pressure roller 5, scraper, pressure plate 7, vibrator 11 and other components are in normal condition, ensure that the screen 10 is undamaged and the limit post 14 is fitted into the clamping groove 15, and check that the slag discharge port 4 is unobstructed. Then, according to the thickness and humidity of the mulch film to be treated, set the lifting frequency of the lifting arm 8 and the vibration interval of the vibrator 11 through the external controller to prepare for subsequent treatment.

[0041] Next, the plastic film to be processed is put in and the initial crushing process is started. The recycled plastic film is poured into the crushing chamber of the crushing bin 1 through the flared hopper 2. After the plastic film enters the chamber, the external drive unit drives the lifting arm 8 to descend, so that the pressure plate 7 applies pressure to the pressure roller 5, pushing the plastic film between the two oppositely arranged pressure rollers 5; at the same time, the pressure roller 5 starts to rotate, and the pressure rings and pressure grooves 16 on the surface of the pressure roller generate shear force to initially crush the plastic film. During the process, the pressure plate 7 continuously presses, which can not only ensure that the plastic film and the pressure roller 5 are in full contact, but also squeeze the clumps of soil to loosen them.

[0042] Then, the pressure roller 5 is cleaned in real time by the scraper. While the pressure roller 5 rotates to crush the mulch film, the scraper 6 on the inner wall of the crushing chamber is always in contact with the surface of the pressure ring. Its arc structure fits the curvature of the pressure roller 5 to avoid wear on the roller body. At the same time, the convex plate 17 on the scraper 6 is embedded in the pressure groove 16 to scrape away any damp soil and small impurities that may remain in the groove, ensuring that the surface of the pressure roller 5 and the pressure groove 16 are unobstructed and avoiding the impact of impurity accumulation on crushing efficiency.

[0043] Next, the crushed plastic film fragments and impurities mixture slide down the inclined guide plate 9 at the connection between the crushing chamber and the screening chamber onto the screen 10 in the screening chamber 3. At this time, the external drive of the vibrator 11 is activated, and the piston rod drives the vibrator rod to intermittently strike the top edge of the screen 10, causing the screen 10 to vibrate. Soil particles, small stones and other impurities fall through the screen holes and are discharged from the device through the slag discharge port 4. The plastic film fragments, due to their larger size, remain on the screen 10, thus achieving the separation of plastic film and impurities.

[0044] Meanwhile, when the vibrating element 11 strikes the screen 10, the buffer part 12 at the bottom edge of the screen can act as a buffer to avoid damage to the screen 10. The telescopic rod extends and retracts with the vibration of the screen in the cavity of the sleeve. The spring 13 sleeved on the telescopic rod is compressed or stretched to absorb the vibration impact force and avoid the screen vibration from affecting the overall structure of the device. At the same time, in conjunction with the limiting action of the limiting post 14 and the clamping groove 15, it prevents the screen 10 from shifting during vibration.

[0045] Finally, after a batch of plastic film is processed, first turn off the drive components of the vibrator 11 and the pressing roller 5, then collect the pure plastic film fragments on the screen 10 for subsequent decomposition and granulation; then clean the accumulated impurities at the slag discharge port 4, check whether there are residual plastic film or impurities in each component, and if necessary, perform targeted cleaning on the scraper and screen 10 to ensure stable performance of the device when it is used next time.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An agricultural mulch film recycling and processing device, characterized in that, include: The crushing chamber (1) has a crushing chamber inside, and a hopper (2) is provided on the outer wall of the crushing chamber (1), which is connected to the crushing chamber; Screening chamber (3), the screening chamber (3) is located at the bottom of the crushing chamber (1), and the screening chamber (3) has a screening chamber that communicates with the crushing chamber; The crushing chamber is equipped with a pressing roller (5), and the surface of the pressing roller (5) is provided with several pressing rings, and a pressing groove (16) is formed between two adjacent pressing rings. The inner wall of the crushing chamber is provided with a scraper, which abuts against the surface of the pressure roller (5).

2. The agricultural mulch film recycling and processing device according to claim 1, characterized in that, The scraper component includes: The scraper (6) has one side connected to the inner wall of the crushing chamber in the width direction and the other side abutting against the pressing ring. The scraper (6) and the pressing roller (5) are of the same length. A protruding plate (17) is provided on one side of the scraper (6) that abuts against the pressure roller (5), and the protruding plate (17) is fitted into the pressure groove (16); The number of the protruding plates (17) corresponds to the number of the pressing grooves (16).

3. The agricultural mulch film recycling and processing device according to claim 1, characterized in that, Also includes: The pressure plate (7) is located at the top of the crushing chamber and above the pressure roller (5); The lifting arm (8) is located between the pressing plate (7) and the crushing chamber. The lifting arm (8) is adapted to drive the pressing plate (7) to perform reciprocating lifting motion.

4. The agricultural mulch film recycling and processing device according to claim 1, characterized in that, The screening chamber is equipped with a screen (10) inside, and a slag discharge port (4) is provided below the screen (10), which is connected to the screening bin (3).

5. The agricultural mulch film recycling and processing device according to claim 4, characterized in that, The edges of the screen (10) are provided with a vibrating element (11) and a buffer part (12), wherein the vibrating element (11) is located at the top edge of the screen (10), and the buffer part (12) is located at the bottom edge of the screen (10).

6. The agricultural mulch film recycling and processing device according to claim 5, characterized in that, The vibrating component (11) includes a vibrating rod and a piston rod. One end of the vibrating rod abuts against the top of the edge of the screen (10), and the other end is connected to the piston rod, which is externally connected to a driving component.

7. The agricultural mulch film recycling and processing device according to claim 6, characterized in that, The buffer section (12) includes: Telescopic rod, one end of which is connected to the bottom edge of the screen (10); A sleeve, wherein a cavity extending along its length is provided inside the sleeve, and the other end of the telescopic rod is inserted into the cavity; A spring (13) is located between the top of the screen (10) and the sleeve, and the spring (13) is sleeved on the telescopic rod.

8. The agricultural mulch film recycling and processing device according to any one of claims 4-7, characterized in that, A clamping groove (15) is provided on the inner wall of the screening chamber. The clamping groove (15) extends along the height direction of the screening bin (3). A limiting post (14) is provided at the edge of the screen (10). The limiting post (14) is inserted into the clamping groove (15).

9. The agricultural mulch film recycling and processing device according to claim 8, characterized in that, The inner wall of the screening chamber is also provided with a guide plate (9), which is located at the connection between the screening chamber and the crushing chamber. The guide plate (9) is inclined.

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