CN219325414U - Agricultural film plasticizing device - Google Patents

Abstract

The utility model relates to the technical field of waste agricultural film treatment, in particular to an agricultural film plasticizing device, which comprises a hopper, wherein the hopper is provided with a feed inlet and a discharge outlet, a heating roller mechanism is arranged in the hopper, the heating roller mechanism comprises a plurality of heating roller groups arranged along the direction from the feed inlet to the discharge outlet, and the roller diameters of the plurality of heating roller groups gradually decrease from one end close to the feed inlet to one end close to the discharge outlet. The utility model has convenient use, can be used for plasticizing the agricultural film, improves plasticizing efficiency, facilitates subsequent granulation and improves the production quality of granulation.

Description

Agricultural film plasticizing device

Technical Field

The utility model relates to the technical field of waste agricultural film treatment, in particular to an agricultural film plasticizing device.

Background

The application of the agricultural film in agricultural production not only greatly promotes the improvement of agricultural yield and benefit, but also drives the change of agricultural production mode and the leap development of agricultural productivity, but with the continuous increase of the application amount and the service life of the agricultural film, the white pollution caused by a large amount of residual agricultural film also seriously affects the progress of agricultural production. In order to solve the problem of waste agricultural films and enable the waste agricultural films to be reused, the waste agricultural films can be recycled. In the process of processing treatment, waste agricultural films are required to be cleaned, and then heated, plasticized and extruded for granulation.

The waste agricultural film can contain a large amount of water after being cleaned, and in order to prevent extruded particles from foaming, the prior solution is as follows: the agricultural film is dried by adopting a wringing machine and a single screw extruder, but the wringing machine has high energy consumption, is easy to wear and has low production efficiency; and the single screw extruder has poor plasticizing uniformity capability to the agricultural film and low mechanical property of the material. Or the agricultural film with water is dried by adopting a dryer and then extruded and granulated, but the required time is longer and the drying efficiency is low. In addition, because the agricultural film is light in weight and small in density in unit volume, the feeding of equipment is difficult, and the production efficiency cannot be effectively improved.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides an agricultural film plasticizing device which is convenient to use, can be used for plasticizing an agricultural film, improves plasticizing efficiency, facilitates subsequent granulation and improves the production quality of granulation.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an agricultural film plasticizing device, including the hopper, the hopper is equipped with feed inlet and discharge gate, be equipped with heating roller mechanism in the hopper, heating roller mechanism includes the edge a plurality of heating roller groups that feed inlet to discharge gate direction set up, the roller diameter of a plurality of heating roller groups is by being close to the one end of feed inlet is close to the one end of discharge gate reduces gradually.

The utility model relates to an agricultural film plasticizing device, which is characterized in that the cleaned agricultural film is sent into a hopper and sequentially passes through each rolling heating roller group, the agricultural film can fully contact with each heating roller group in the process, the heating contact area is increased, and the moisture on the surface of the agricultural film can be quickly evaporated; furthermore, through the roll transportation of a plurality of heating roller groups that roller diameter reduces gradually, the plastic film can be accomplished by roll extrusion and plastify, improves the plasticizing effect, simultaneously can also carry the plastic film to the discharge gate from the feed inlet, avoids appearing the condition of putty, improves production efficiency.

Preferably, the plurality of heating roller sets comprise a first heating roller set, a second heating roller set and a third heating roller set which are sequentially arranged along the direction from the feeding port to the discharging port, wherein the roller diameter of the first heating roller set is larger than that of the second heating roller set, and the roller diameter of the second heating roller set is larger than that of the third heating roller set; and the three are arranged in parallel with each other.

Preferably, the first heating roller set, the second heating roller set and the third heating roller set are respectively connected with a moving mechanism for adjusting the distance between the adjacent heating rollers. The distance between the adjacent heating rollers is adjusted through the moving mechanism, so that the device can be used for adjusting the plasticizing effect of the agricultural film.

Preferably, the first heating roller set comprises a first heating roller and a second heating roller, the first heating roller and the second heating roller are rotationally inserted with the hopper, and the first heating roller and the second heating roller are respectively connected with a first driving mechanism and a second driving mechanism; the first end of the first heating roller is rotationally connected with the side wall of the hopper through the first moving mechanism, and the second end of the first heating roller is rotationally connected with the side wall of the hopper through the second moving mechanism; the first driving mechanism is connected with the moving end of the second moving mechanism.

Preferably, the first moving mechanism comprises a first sliding block connected with the first end of the roller shaft of the first heating roller, and further comprises a first guide seat fixedly connected to the outer side wall of the hopper, and the first sliding block is in sliding connection with the first guide seat; the second moving mechanism comprises a second sliding block connected with the second end of the roller shaft of the first heating roller, and also comprises a second guide seat fixedly connected to the outer side wall of the hopper, and the second sliding block is in sliding connection with the second guide seat; the first driving mechanism is connected with the second sliding block.

Preferably, the first moving mechanism further comprises a driving assembly for driving the first sliding block to slide, a driving part of the driving assembly is connected with the first sliding block, and a fixing part of the driving assembly is connected with the first guide seat. The driving assembly is arranged to improve the moving convenience of the first moving mechanism to the first heating roller.

Preferably, the first heating roller and the second heating roller are arranged in parallel, and the rotation directions of the first heating roller and the second heating roller are opposite. The first heating roller and the second heating roller are arranged in opposite rotation directions and can be used for oppositely extruding and kneading the agricultural film to heat and plasticize the agricultural film.

Preferably, a material blocking assembly is further connected in the hopper, the material blocking assembly comprises a plurality of material blocking plates connected to the inner side wall of the hopper, and the material blocking plates are located at positions between the adjacent heating roller groups. The setting of keeping off material subassembly can avoid the plastic film to glue and return towards the feed inlet after the roller, improves unloading efficiency.

Preferably, the side wall of the hopper is provided with a cooling interlayer, and the cooling interlayer is communicated with a water inlet and a water outlet. The cooling interlayer is arranged, so that the phenomenon that the plasticized agricultural film adheres to the wall can be avoided.

Preferably, the discharge hole is also communicated with a conveying mechanism. The conveying mechanism can be used for conveying the plasticized agricultural film to other equipment for the next process.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model relates to an agricultural film plasticizing device, which is characterized in that the cleaned agricultural film is sent into a hopper and sequentially passes through each rolling heating roller group, the agricultural film can fully contact with each heating roller group in the process, the heating contact area is increased, and the moisture on the surface of the agricultural film can be quickly evaporated; furthermore, through the rolling conveying of a plurality of heating roller sets with gradually reduced roller diameters, the agricultural film can be subjected to rolling extrusion to complete plasticization, so that plasticization effect is improved, meanwhile, the agricultural film can be conveyed from a feed inlet to a discharge outlet, the condition of blocking is avoided, and production efficiency is improved; the first heating roller and the second heating roller are arranged in opposite rotation directions and can be used for oppositely extruding and kneading the agricultural film to heat and plasticize the agricultural film; the roller diameters of the heating roller groups are gradually reduced, so that the device has the effect of enhancing extrusion plasticization and improves plasticization effect; the arrangement of the material blocking component can prevent the agricultural film from returning towards the feeding port after being adhered to the roller, so that the blanking efficiency is improved; the cooling interlayer is arranged, so that the phenomenon that the plasticized agricultural film adheres to the wall can be avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of an embodiment 1 of an agricultural film plasticizing apparatus according to the present utility model;

FIG. 2 is a schematic structural view of an embodiment 1 of an agricultural film plasticizing apparatus according to the present utility model;

FIG. 3 is a schematic view of the structure of a first heating roller according to the present utility model;

FIG. 4 is a schematic view of the structure of the material blocking assembly and the heating roller mechanism of the present utility model;

FIG. 5 is a schematic top view of an embodiment 2 of an agricultural film plasticizing apparatus according to the present utility model;

FIG. 6 is a schematic view of a first moving mechanism according to the present utility model;

FIG. 7 is a schematic diagram of a second moving mechanism according to the present utility model;

FIG. 8 is a schematic view of a second slider according to the present utility model;

FIG. 9 is a schematic view showing the internal structure of an embodiment 3 of an agricultural film plasticizing apparatus according to the present utility model;

fig. 10 is a schematic structural diagram of an embodiment 4 of an agricultural film plasticizing apparatus according to the present utility model.

The graphic indicia are illustrated as follows:

1-hopper, 11-feed inlet, 12-discharge outlet, 13-cooling interlayer, 14-water inlet, 15-water outlet, 16-kidney hole, 2-heating roller mechanism, 21-first heating roller set, 211-first heating roller, 2111-roller body, 2112-oil cavity, 2113-roller shaft, 212-second heating roller, 213-first driving mechanism, 214-second driving mechanism, 22-second heating roller set, 221-third heating roller, 222-fourth heating roller, 223-third driving mechanism, 224-fourth driving mechanism, 23-third heating roller set, 231-fifth heating roller, 232-sixth heating roller, 233-fifth driving mechanism, 234-sixth driving mechanism, 24-first moving mechanism, 241-first guide, 242-first slider, driving component, 25-second moving mechanism, 251-second guide, 252-second slider, 2521-back plate, 2522-bottom plate, 2523-clamping groove, 26-bearing seat, 3-third driving mechanism, 31-first baffle plate, 31-third baffle plate, 32-third baffle plate and 32-third baffle plate.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Example 1

Referring to fig. 1 to 4, a first embodiment of an agricultural film plasticizing apparatus according to the present utility model includes a hopper 1, a feed inlet 11 is provided at an upper end of the hopper 1, a discharge outlet 12 is provided at a lower end of the hopper 1, a heating roller mechanism 2 is provided in the hopper 1, the heating roller mechanism 2 includes a plurality of heating roller sets disposed along a direction from the feed inlet 11 to the discharge outlet 12, and roller diameters of the plurality of heating roller sets gradually decrease from one end near the feed inlet 11 to one end near the discharge outlet 12.

The cleaned agricultural film is sent into the hopper 1, passes through each rolling heating roller group, and can be fully contacted with each heating roller group in the process, so that the heating contact area is increased, and the moisture on the surface of the agricultural film can be quickly evaporated. Furthermore, through the roll transportation of a plurality of heating roller groups that roller diameter reduces gradually, the plastic film can be accomplished by the roll extrusion and plastify, improves the plasticizing effect, simultaneously can also carry the plastic film from feed inlet 11 to discharge gate 12, avoids appearing the condition of putty, improves production efficiency.

As shown in fig. 1, the plurality of heating roller sets includes a first heating roller set 21, a second heating roller set 22 and a third heating roller set 23 which are sequentially arranged from top to bottom, wherein the roller diameter of the first heating roller set 21 is larger than that of the second heating roller set 22, and the roller diameter of the second heating roller set 22 is larger than that of the third heating roller set 23; the rollers of the first heating roller set 21 are parallel to the rollers of the second heating roller set 22, and the rollers of the second heating roller set 22 are parallel to the rollers of the third heating roller set 23.

Specifically, as shown in fig. 1 and 2, the first heating roller set 21 includes a first heating roller 211 and a second heating roller 212 rotatably inserted into the hopper 1, where the first heating roller 211 and the second heating roller 212 are parallel to each other, have the same diameter, and have the same center of the circle. The first heating roller 211 and the second heating roller 212 are respectively connected with a first driving mechanism 213 and a second driving mechanism 214, and the first heating roller 211 and the second heating roller 212 are respectively controlled to rotate in opposite directions through the first driving mechanism 213 and the second driving mechanism 214, so that the machine can be used for oppositely extruding and kneading the agricultural film, and heating, plasticizing and transporting the agricultural film are realized. It should be noted that, the first driving mechanism 213 includes a motor and a transmission assembly connected to the motor, and the first heating roller 211 is connected to the transmission assembly; the motor can be fixedly connected to the outer side wall of the hopper 1 through a fixing seat, as shown in fig. 2. After driving the motor, power is transmitted to the first heating roller 211 through the transmission assembly, so that the first heating roller 211 rotates. In this embodiment, the motor may be a variable frequency motor, which can facilitate adjustment of the rotation speed of the first heating roller 211; the transmission assembly may be a synchronous pulley structure. The second driving mechanism 214 has the same structure as the first driving mechanism 213, and can drive the first heating roller 211 and the second heating roller 212 to rotate oppositely through the motor, and enable the heating roller positioned at the left side to rotate clockwise, and the heating roller positioned at the right side to rotate anticlockwise, so that the agricultural film fed between the first heating roller 211 and the second heating roller 212 can be extruded and rubbed, and can be transported downwards to the second heating roller group 22 to be extruded and rubbed again, and heating and plasticizing are continued.

Specifically, as shown in fig. 3, the first heating roller 211 includes a roller body 2111 and roller shafts 2113 connected to two ends of the roller body 2111, the roller shafts 2113 are connected with the side wall of the hopper 1 through bearing seats 26, and an oil cavity 2112 communicated with the outside is arranged in the roller body 2111, so that heating can be realized by introducing heat conduction oil. The second heating roller 212 in this embodiment has the same structure as the first heating roller 211.

Accordingly, the second heating roller set 22 has a similar structure to that of the first heating roller set 21, and the second heating roller set 22 includes a third heating roller 221 and a fourth heating roller 222 having the same diameter and located at the same height position, and both have a diameter smaller than that of the first heating roller 211; the third heating roller 221 and the fourth heating roller 222 are respectively connected with a third driving mechanism 223 and a fourth driving mechanism 224, and the third driving mechanism 223 and the fourth driving mechanism 224 can also be fixedly connected on the outer side wall of the hopper 1 through fixing seats. The third heating roller 221 and the fourth heating roller 222 can be driven to rotate in opposite directions through the third driving mechanism 223 and the fourth driving mechanism 224 to finish the second heating plasticization of the agricultural film, and can be transported to the position of the third heating roller group 23.

Accordingly, the third heating roller set 23 is also similar to the first heating roller set 21 in structure, and the third heating roller set 23 includes a fifth heating roller 231 and a sixth heating roller 232 having the same diameter and located at the same height position, and both of which have diameters smaller than those of the third heating roller 221; the fifth heating roller 231 and the sixth heating roller 232 are respectively connected with a fifth driving mechanism 233 and a sixth driving mechanism 234, and the fifth driving mechanism 233 and the sixth driving mechanism 234 can also be fixedly connected to the outer side wall of the hopper 1 through fixing seats. The fifth driving mechanism 233 and the sixth driving mechanism 234 can drive the fifth heating roller 231 and the sixth heating roller 232 to rotate oppositely to finish the third heating and plasticizing of the agricultural film, and can be transported downwards to the discharging hole 12 for discharging. It should be noted that, the number of the heating roller sets of the heating roller mechanism 2 may be selected according to the actual use situation, and the setting of three sets is only preferable and cannot be used as a limitation on the number of the heating roller sets.

As shown in fig. 1, a material blocking assembly 3 is further connected in the hopper 1, and the material blocking assembly 3 comprises a plurality of material blocking plates connected to the inner side wall of the hopper 1, wherein the material blocking plates are positioned between adjacent heating roller groups. The setting of keeping off material subassembly 3 can avoid the plastic film to glue and return towards feed inlet 11 after the roller, improves unloading efficiency. In this embodiment, the material blocking assembly 3 includes a first material blocking plate 31, a second material blocking plate 32 and a third material blocking plate 33 connected to the inner side wall of the hopper 1, specifically, two first material blocking plates 31, two second material blocking plates 32 and two third material blocking plates 33 are disposed in the hopper 1, the two first material blocking plates 31 are respectively and symmetrically connected to the inner side wall of the hopper 1, the two second material blocking plates 32 and the two third material blocking plates 33 are respectively and symmetrically connected to the inner side wall of the hopper 1, and as shown in fig. 1, the cross sections of the first material blocking plates 31, the second material blocking plates 32 and the third material blocking plates 33 are all in triangular structures. Further, the first dam 31 is located at a position between the first heating roller group 21 and the second heating roller group 22, the second dam 32 is located at a position between the second heating roller group 22 and the third heating roller group 23, and the third dam 33 is located at a position between the third heating roller group 23 and the discharge port 12. In order to avoid the blanking from being blocked by the material blocking assembly 3, the most distal end of the first material blocking plate 31, which is close to one side of the first heating roller 211, will not exceed the vertical distance position where the center of the circle of the first heating roller 211 is located, as shown by the dotted line position in fig. 4; the most distal end of the first striker plate 31 refers to the end of the first striker plate 31 away from the inner sidewall of the hopper 1. Accordingly, the most distal end of the second dam 32 does not exceed the vertical distance position of the center of the roller of the second heating roller set 22, and the most distal end of the third dam 33 does not exceed the vertical distance position of the center of the roller of the third heating roller set 23.

In this embodiment, the vertical section of the hopper 1 is a funnel-shaped structure, and the arrangement of the funnel-shaped structure can be adapted to the arrangement of gradually decreasing roller diameters of a plurality of heating roller sets in the heating roller mechanism 2, as shown in fig. 1.

During the use, send into hopper 1 with accomplishing abluent plastic film in from feed inlet 11, the plastic film can be through the extrusion of first heating roller group 21, second heating roller group 22 and third heating roller group 23 in proper order and rub, can fully contact with every heating roller group at this in-process plastic film, increase heating area of contact and heating time, and can carry out the material transportation at the in-process of heating plasticization, can avoid appearing the condition of putty, can also make the plastic film reach the flow state and have good plasticity, improve production efficiency. In order to improve the plasticizing effect of the agricultural film, adjacent heating roller sets can be arranged to rotate at a differential speed.

Example 2

The present embodiment is similar to embodiment 1 except that, as shown in fig. 5 to 8, a moving mechanism for adjusting the distance between adjacent heating drums is connected to each of the first heating drum set 21, the second heating drum set 22, and the third heating drum set 23 in the present embodiment. The plasticizing effect of the agricultural film can be adjusted by adjusting the distance between the adjacent heating rollers through the moving mechanism.

As shown in fig. 5, the moving mechanism comprises a first moving mechanism 24 and a second moving mechanism 25, a first end of the first heating roller 211 is rotatably connected with the side wall of the hopper 1 through the first moving mechanism 24, and a second end of the first heating roller 211 is rotatably connected with the side wall of the hopper 1 through the second moving mechanism 25; the first driving mechanism 213 is connected to the moving end of the second moving mechanism 25.

Specifically, as shown in fig. 5 and 6, the first moving mechanism 24 includes a first guide seat 241 fixedly connected to the outer sidewall of the hopper 1, and further includes a first slider 242 horizontally slidably connected to the first guide seat 241, and a first end of a roller shaft 2113 of the first heating roller 211 is connected to the first slider 242 through a bearing seat 26. The first guide seat 241 is further provided with a notch structure for allowing the roll shaft 2113 to pass through and horizontally move, and a kidney-shaped hole 16 for allowing the roll shaft 2113 to pass through and horizontally move is provided at a corresponding position on the side wall of the hopper 1, as shown in fig. 10. In order to improve the moving convenience of the first moving mechanism 24 on the first heating roller 211, the first moving mechanism 24 further includes a driving assembly 243 for driving the first slider 242 to slide, a driving portion of the driving assembly 243 is connected to the first slider 242, and a fixing portion of the driving assembly 243 is connected to the first guide seat 241. In this embodiment, the driving component 243 may be a ball screw assembly, where a nut of the ball screw assembly is connected with the first slider 242, and a screw of the ball screw assembly is connected with the first guide seat 241 through a bearing, and the screw is driven by a motor to rotate, so that the first slider 242 can be driven to slide.

As shown in fig. 5 and 7, the second moving mechanism 25 includes a second guide holder 251 fixedly connected to the outer sidewall of the hopper 1, and further includes a second slider 252 horizontally slidably connected to the second guide holder 251, and a second end of the roller shaft 2113 of the first heating roller 211 is connected to the second slider 252 through a bearing seat 26, and a notch structure for allowing the roller shaft 2113 to pass through and horizontally move is also provided on the second guide holder 251. The first driving mechanism 213 is connected to the second slider 252 in this embodiment. Specifically, as shown in fig. 7 and 8, the second slider 252 includes a back plate 2521 and a bottom plate 2522 fixedly connected to the back plate 2521, and the back plate 2521 is provided with a clamping slot 2523 for sliding clamping with the second guide holder 251. The motor of the first driving mechanism 213 is disposed on the bottom plate 2522, and when the driving assembly 243 drives the first slider 242 to slide, the second slider 252 and the first driving mechanism 213 disposed on the second slider 252 can be synchronously driven to move together, so as to implement the adjustment of the space between the first heating roller 211 and the second heating roller 212. It should be noted that, the first moving mechanism 24 and the second moving mechanism 25 can also be installed on the second heating roller 212, and the adjustment of the distance between the rollers can also be realized, when the distance between the first heating roller 211 and the second heating roller 212 is reduced, the greater the extrusion and the shearing force of the agricultural film are, the uniformity of the agricultural film plasticization can be improved, but in order to make the roller have the blanking speed meeting the requirement, so as to ensure the productivity, the distance between the first heating roller 211 and the second heating roller 212 is not too small, therefore, by setting the first moving mechanism 24 and the second moving mechanism 25, the first heating roller set 21 can plasticize and transport the materials according to the actual application requirement.

Accordingly, the third heating roller 221 or the fourth heating roller 222 can also be used for adjusting the distance between rollers by providing the first moving mechanism 24 and the second moving mechanism 25, and the fifth heating roller 231 or the sixth heating roller 232 can also be used for adjusting the distance between rollers by providing the first moving mechanism 24 and the second moving mechanism 25.

Example 3

This embodiment is similar to embodiment 1 or 2, except that, as shown in fig. 9, the side wall of the hopper 1 is provided with a cooling interlayer 13, a water inlet 14 and a water outlet 15 are arranged at the cooling interlayer 13 in a communicating manner, wherein the water inlet 14 is arranged at one end close to the discharge port 12, the water outlet 15 is arranged at one end close to the feed port 11, and cooling water can be introduced into the cooling interlayer 13 to cool the side wall of the hopper 1. The cooling interlayer 13 is arranged, so that the phenomenon that the plasticized agricultural film adheres to the wall can be avoided. In this embodiment, a cooling channel which is spirally disposed around the side wall of the hopper 1 may be disposed in the cooling interlayer 13, and cooling water flows through the cooling channel and then flows out from the water outlet 15 by introducing cooling water into the water inlet 14, so that cooling of the side wall of the hopper 1 can be achieved.

Example 4

This embodiment is similar to any of embodiments 1 to 3 except that, as shown in fig. 10, the discharge port 12 in this embodiment is further connected to a conveying mechanism 4. The conveying mechanism 4 can be used for conveying the plasticized agricultural film to other equipment for the next process. In this embodiment, the conveying mechanism 4 is an extrusion screw mechanism, an input end of the extrusion screw mechanism is connected and communicated with the discharge port 12, an output end of the extrusion screw mechanism can be connected with a granulating device, and the plasticized agricultural film is conveyed into the granulating device for granulating. Since the plastic film is completely plasticized, the granulating device can be used only for extrusion granulating process, and the heating plasticizing process is not needed any more, so that the energy consumption of the granulating device can be reduced.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides an agricultural film plasticizing device, includes hopper (1), hopper (1) are equipped with feed inlet (11) and discharge gate (12), its characterized in that, be equipped with heating roller mechanism (2) in hopper (1), heating roller mechanism (2) are including following a plurality of heating roller groups that feed inlet (11) to discharge gate (12) direction set up, the roller diameter of a plurality of heating roller groups is by being close to one end of feed inlet (11) is close to one end of discharge gate (12) reduces gradually.

2. The agricultural film plasticizing apparatus of claim 1, wherein the plurality of heating roller sets includes a first heating roller set (21), a second heating roller set (22) and a third heating roller set (23) sequentially arranged along a direction from the feed inlet (11) to the discharge outlet (12), a roller diameter of the first heating roller set (21) is larger than a roller diameter of the second heating roller set (22), and a roller diameter of the second heating roller set (22) is larger than a roller diameter of the third heating roller set (23); and the three are arranged in parallel with each other.

3. The agricultural film plasticizing apparatus of claim 2, wherein the first heating roller set (21), the second heating roller set (22) and the third heating roller set (23) are respectively connected with a moving mechanism for adjusting the distance between adjacent heating rollers.

4. A plant as claimed in claim 3, characterized in that the first heating roller set (21) comprises a first heating roller (211) and a second heating roller (212), the first heating roller (211) and the second heating roller (212) are rotatably connected with the hopper (1), and the first heating roller (211) and the second heating roller (212) are respectively connected with a first driving mechanism (213) and a second driving mechanism (214);

the moving mechanism comprises a first moving mechanism (24) and a second moving mechanism (25), a first end of the first heating roller (211) is rotatably connected with the side wall of the hopper (1) through the first moving mechanism (24), and a second end of the first heating roller (211) is rotatably connected with the side wall of the hopper (1) through the second moving mechanism (25); the first driving mechanism (213) is connected with the moving end of the second moving mechanism (25).

5. The agricultural film plasticizing apparatus of claim 4, wherein the first moving mechanism (24) includes a first slider (242) connected to a first end of a roller shaft (2113) of the first heating roller (211), and further includes a first guide holder (241) fixedly connected to an outer sidewall of the hopper (1), and the first slider (242) is slidably connected to the first guide holder (241); the second moving mechanism (25) comprises a second sliding block (252) connected with the second end of the roller shaft (2113) of the first heating roller (211), and also comprises a second guide seat (251) fixedly connected to the outer side wall of the hopper (1), and the second sliding block (252) is in sliding connection with the second guide seat (251); the first driving mechanism (213) is connected with the second slider (252).

6. The agricultural film plasticizing apparatus of claim 5, wherein the first moving mechanism (24) further includes a driving assembly (243) for driving the first slider (242) to slide, a driving portion of the driving assembly (243) is connected to the first slider (242), and a fixing portion of the driving assembly (243) is connected to the first guide base (241).

7. The agricultural film plasticizing apparatus of claim 4, wherein the first heating roller (211) and the second heating roller (212) are disposed parallel to each other, and the rotation directions of the first heating roller (211) and the second heating roller (212) are opposite to each other.

8. An agricultural film plasticizing apparatus according to any one of claims 1 to 7, wherein a material blocking assembly (3) is further connected to the inside of the hopper (1), and the material blocking assembly (3) includes a plurality of material blocking plates connected to the inside wall of the hopper (1), and the material blocking plates are located between adjacent heating roller groups.

9. The agricultural film plasticizing apparatus of any one of claims 1 to 7, wherein a cooling interlayer (13) is provided on a side wall of the hopper (1), and a water inlet (14) and a water outlet (15) are connected to the cooling interlayer (13).

10. The agricultural film plasticizing apparatus of any one of claims 1 to 7, wherein the outlet (12) is further connected to a conveying mechanism (4).

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