CN111633867A

CN111633867A - Plastic film granulator

Info

Publication number: CN111633867A
Application number: CN202010426445.1A
Authority: CN
Inventors: 胡云垒; 刘德强; 黎造枢
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-09-08

Abstract

The invention belongs to the technical field of plastic film granulators, and particularly relates to a plastic film granulator which comprises a water tank, a horizontal cutting blade, an installation lantern ring, a push plate, an impurity collecting box, a granulation box, a plastic particle collecting box and a first water pump, wherein the installation lantern ring is arranged on the horizontal cutting blade; the inside of the water tank is divided into a cutting chamber and a drifting chamber by a partition plate; the top end of the cutting chamber is provided with a conveyor belt for conveying the plastic film; the bottom of the cutting chamber is provided with an inclined impurity conveying plate; a vertical fixing rod is fixedly arranged at the center of the interior of the cutting chamber, and the bottom end of the vertical fixing rod is fixed on the surface of the impurity conveying plate; an installation lantern ring is movably sleeved on the vertical fixed rod; according to the invention, the first water pump, the power nozzle, the push plate and the horizontal cutting blade are arranged, so that the horizontal cutting blade is driven to rotate through water power, the plastic film is cut by the horizontal cutting blade, energy is saved, the plastic film can be cut while the film is washed, and the working efficiency is greatly improved.

Description

Plastic film granulator

Technical Field

The invention belongs to the technical field of plastic film granulators, and particularly relates to a plastic film granulator.

Background

The main machine of the plastic granulator is an extruding machine which consists of an extruding system, a transmission system and a heating and cooling system, different additives are added into resin according to different purposes, and the resin raw materials are prepared into a machine set of granular products suitable for secondary processing through heating, mixing and extrusion forming, so that the plastic granulator is widely applied to the petroleum and petrochemical industry.

The granulation equipment used at present has a large body shape, and the granulation process flow is as follows: firstly, cleaning a plastic film; then putting the cleaned film into an extruder for heating, melting and extruding; water cooling the extruded plastic in a strip structure; the formed strip-shaped plastic is cut into small sectional particles by a cutting machine, obviously, the granulation process is relatively complex, and the equipment adopted in each step consumes relatively more energy; patent No. CN201910927559.1 also proposes a plastic film granulator, which improves the feeding device in the prior art and provides a blade convenient for replacement, but the whole granulating process is still quite complicated and consumes much energy, and meanwhile, the plastic film granulator in the prior art is only washed once simply before melting, resulting in poor cleaning effect of the plastic film and poor granulating quality.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems of complex granulation process and high energy consumption and poor granulation quality caused by unclean plastic film cleaning, the invention provides the plastic film granulator.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a plastic film granulator which comprises a water tank, a horizontal cutting blade, an installation lantern ring, a push plate, an impurity collecting box, a granulation box, a plastic particle collecting box and a first water pump, wherein the water tank is connected with the horizontal cutting blade; the inside of the water tank is divided into a cutting chamber and a drifting chamber by a partition plate; the top end of the cutting chamber is provided with a conveyor belt for conveying the plastic film; the bottom of the cutting chamber is provided with an inclined impurity conveying plate; a vertical fixing rod is fixedly arranged at the center of the interior of the cutting chamber, and the bottom end of the vertical fixing rod is fixed on the surface of the impurity conveying plate; the vertical fixed rod is movably sleeved with an installation lantern ring; an annular limiting block arranged on the inner wall of the mounting lantern ring is in sliding connection with an annular sliding groove arranged on the surface of the vertical fixed rod; push plates are uniformly arranged on the outer edge of the mounting lantern ring; the outer edge of the mounting lantern ring is positioned in a gap of the push plate and is fixedly provided with horizontal cutting blades, and the horizontal cutting blades are positioned on different horizontal planes; the inner wall of the cutting chamber is provided with a power spray head which sprays water flow to the side surface of the push plate; the power spray heads are positioned on the mutually opposite inner walls of the cutting chambers; the number of the power nozzles is two, and the two rows of the power nozzles are centrosymmetric about the vertical fixed rod; the outer side wall of the cutting chamber is fixedly provided with an impurity collecting box; the impurity collecting box is communicated with the cutting chamber through a water inlet; the impurity conveying plate is inclined towards the impurity collecting box; the lower port of the water inlet between the cutting chamber and the impurity collecting box is flush with the surface of the end part of the impurity conveying plate; a water inlet for communicating the cutting chamber and the drift chamber is formed in the partition plate in the water tank; a granulation box is fixedly arranged on the outer side wall of the drift chamber; a heating plate for heating and melting the thin plastic film is fixedly arranged at the top of the granulation box; a first inclined plate is fixedly arranged on the inner wall of the granulation box below the heating plate; circular through holes are uniformly formed in the first inclined plate; a water inlet for communicating the granulation box and the drift chamber is formed in the side wall of the water tank; a water inlet between the drift chamber and the granulation box is positioned above the first inclined plate; a second inclined plate for transporting solidified plastic particles is arranged below the first inclined plate in the granulation box; circular through holes are uniformly formed in the second inclined plate, and the size of the circular through holes in the second inclined plate is smaller than that of the circular through holes in the first inclined plate; a first water pump is arranged at the bottom of the granulation box; the first water pump is communicated with the power nozzle through a connecting pipe fitting; a plastic particle collecting box is fixedly arranged on the outer side of the granulation box; the plastic particle collecting box is communicated with the granulating box through a water inlet; the lower port of the water inlet on the granulation box is flush with the surface of the second inclined plate;

during operation, water is filled in the cutting chamber, the drifting chamber, the granulation box, the impurity collecting box and the plastic particle collecting box, then the first water pump is started, at the moment, the water in the granulation box is pumped out by the first water pump and is sprayed out from the power nozzle, water flow sprayed out from the power nozzle shoots towards the push plate and enables the mounting sleeve ring to rotate by pushing the push plate, meanwhile, the conveying belt conveys the plastic film to the inside of the cutting chamber, at the moment, the plastic film can be washed by the water flow sprayed out from the power nozzle, meanwhile, the horizontal cutting blade positioned at the edge of the mounting sleeve ring can cut the plastic film, the plastic film cut into fragments falls on the water surface of the cutting chamber and flows to the inside of the drifting chamber under the impact action of the water flow, impurities washed off from the plastic film are deposited at the bottom of the cutting chamber and flow into the impurity collecting box through the impurity conveying plate, the plastic film flows into the surface of the first inclined plate in the granulation box through the drifting, at the moment, the plastic film is remained on the surface of the first inclined plate, water falls into the bottom of the granulating box from the circular through hole on the first inclined plate, the water is pumped out by the first water pump to drive the push plate to rotate, meanwhile, the heating plate positioned at the top of the granulating box can heat and melt the cleaned plastic film positioned on the first inclined plate, the melted plastic leaks down through the circular through hole to enter the water surface of the granulating box, spherical solid particles are formed by cooling, and the spherical solid particles are rolled down to the inside of the plastic particle collecting box through the second inclined plate to be collected (because the diameter of the circular through hole on the second inclined plate is smaller than that of the circular through hole on the first inclined plate, the plastic solid particles cannot leak down from the second inclined plate).

Preferably, the edge of the lower surface of the mounting lantern ring is fixedly provided with a conical plate; the top of the conical plate is of a smooth curved surface structure; a vertical cutting blade is fixedly arranged on the edge of the bottom plane of the conical plate; during operation, the rotation of the mounting sleeve ring drives the conical plate to rotate, and the vertical cutting blade at the bottom of the conical plate can perform secondary cutting on the plastic film floating on the water surface of the cutting chamber, so that the cutting effect of the plastic film is better.

As an embodiment of the invention, the outer edge of the push plate is elastically provided with a patting ball through a spring; during operation, the beating ball can be in contact with the plastic film, the effect of beating the plastic film is achieved, the impurities on the plastic film can fall off conveniently, and therefore the cleaning effect of water flow on the plastic film is better.

Preferably, a spherical cavity is formed in the patting ball; an extrusion ball is placed in the spherical cavity; the extrusion ball is fixedly connected with the end part of the push plate through a pull rope; a rubber air bag is fixedly arranged inside the spherical cavity and positioned on the inner side of the extrusion ball; the rubber air bag is communicated with a transition air cavity inside the patting ball through a connecting hose; columnar chambers are uniformly arranged in the patting ball and positioned on the outer side of the transition air cavity; the columnar cavity is communicated with the transition air cavity; a piston plate is arranged in the columnar chamber in a sliding manner; the outer side surface of the piston plate is fixedly connected with one end of a puncture needle; the free end of the puncture needle extends out of the outer edge of the patting ball; the during operation, under the effect of rivers impact force, the push pedal rotates around vertical dead lever, under the effect of centrifugal force, pat the ball and throw away from the direction of push pedal, and this moment because the extrusion ball is by the tip of stay cord fixed connection at the push pedal, the extrusion ball can extrude to be located and pat the inside rubber gasbag of ball this moment, gas in the rubber gasbag gets into the inside of transition air cavity through coupling hose, the inside that finally gets into the column cavity is pushed piston plate to the outward flange of patting the ball, make the pjncture needle that links firmly with the piston plate stretch out the outward flange of patting the ball, the pjncture needle can be lacerated plastic film at patting ball pivoted in-process this moment, thereby make cutting efficiency faster.

Preferably, the outer surface of the patting ball is coated with a buffer pad; the puncture needle penetrates through a cushion pad outside the patting ball; the during operation, when first water pump was closed in needs stop work, the installation lantern ring was in the speed reduction state this moment, patted the ball and can take place the shake and hit horizontal cutting blade owing to speed decline to pound the horizontal cutting blade bad, and the blotter then can prevent to pat the ball and hit the horizontal cutting blade bad.

Preferably, the opposite inner walls of the cutting chamber are provided with scouring nozzles; the number of the flushing nozzles is two rows; the two rows of flushing nozzles are arranged in a centrosymmetric manner relative to the vertical fixed rod; the connecting line of the two rows of the power nozzles and the connecting line of the two rows of the scouring nozzles are crossed; the flushing nozzle is communicated with the second water pump through a connecting pipe fitting; the second water pump is positioned at the top of the impurity collecting box; the power of the second water pump is smaller than that of the first water pump; when the device works, the second water pump pumps out clean water on the upper layer in the impurity collecting box and sprays the clean water out of the flushing sprayer, and the power of the second water pump is smaller than that of the first water pump, so that the speed of water flow sprayed out of the flushing sprayer is lower, and the rotation of the mounting lantern ring is not hindered; the water sprayed from the flushing sprayer can be used for cleaning the plastic film on one hand, and can prevent the plastic film from being wrapped on the push plate on the other hand, so that the rotation of the push plate is prevented from being stopped.

The invention has the following beneficial effects:

1. according to the plastic film granulator, the first water pump, the power sprayer, the push plate and the horizontal cutting blade are arranged, so that the horizontal cutting blade is driven to rotate through water power, the plastic film is cut by the horizontal cutting blade, energy is saved, the plastic film can be cut while the film is washed, the working efficiency is greatly improved, the vertical cutting blade is arranged below the horizontal cutting blade, the plastic film floating on the water surface of the cutting chamber can be cut for the second time, the cutting effect is better, and the subsequent heating and melting operation is facilitated.

2. According to the plastic film granulator, the heating plate and the first inclined plate are arranged, so that the sheared plastic film can be directly heated and melted on the first inclined plate, liquid drops of the melted film directly drop into water in the granulating box to be cooled into spherical particles, and compared with the traditional process of melting the plastic film, extruding the plastic film into strips, and then cutting the strip-shaped plastic into the sectional particles, the plastic film granulator greatly simplifies the process steps, and is more environment-friendly and energy-saving.

3. According to the plastic film granulator, the rubber air bag is arranged in the flapping ball, and when the mounting lantern ring rotates, the extrusion ball extrudes the rubber air bag to eject the puncture needle out of the cylindrical cavity, so that the plastic film can be scratched, and the shearing efficiency of the plastic film is improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the racket ball;

FIG. 3 is a diagram showing the distribution of the power nozzle and the flushing nozzle in the cutting chamber;

FIG. 4 is a schematic structural view of a vertical fixing rod;

in the figure: the device comprises a water tank 1, a cutting chamber 2, a water inlet 3, a power nozzle 4, a conveyor belt 5, a vertical fixing rod 6, a horizontal cutting blade 7, a mounting sleeve ring 8, a push plate 9, a patting ball 10, a conical plate 11, a vertical cutting blade 12, an impurity conveying plate 13, a second water pump 14, an impurity collecting box 15, a granulation box 16, a heating plate 17, a plastic particle collecting box 19, a first inclined plate 20, a circular through hole 21, a second inclined plate 22, a first water pump 23, a puncture needle 24, a piston plate 25, a columnar chamber 26, a transition air cavity 27, a pull rope 28, a rubber air bag 29, an extrusion ball 30, a drifting chamber 31 and a scouring nozzle 32.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the plastic film granulator according to the present invention includes a water tank 1, a horizontal cutting blade 7, a mounting collar 8, a push plate 9, a foreign material collecting tank 15, a granulation tank 16, a plastic particle collecting tank 19, and a first water pump 23; the inside of the water tank 1 is divided into a cutting chamber 2 and a drifting chamber 31 by a partition plate; the top end of the cutting chamber 2 is provided with a conveyor belt 5 for conveying plastic films; the bottom of the cutting chamber 2 is provided with an inclined impurity conveying plate 13; a vertical fixing rod 6 is fixedly arranged at the center of the interior of the cutting chamber 2, and the bottom end of the vertical fixing rod 6 is fixed on the surface of the impurity conveying plate 13; the vertical fixed rod 6 is movably sleeved with an installation lantern ring 8; an annular limiting block arranged on the inner wall of the mounting lantern ring 8 is in sliding connection with an annular sliding groove arranged on the surface of the vertical fixing rod 6; push plates 9 are uniformly arranged on the outer edge of the mounting lantern ring 8; the outer edge of the mounting collar 8 is positioned in the gap of the push plate 9 and is fixedly provided with a horizontal cutting blade 7, and the horizontal cutting blades 7 are positioned on different horizontal planes; the inner wall of the cutting chamber 2 is provided with a power nozzle 4 which sprays water flow to the side surface of the push plate 9; the power spray heads 4 are positioned on the mutually opposite inner walls of the cutting chamber 2; the number of the power nozzles 4 is two, and the two rows of the power nozzles 4 are centrosymmetric about the vertical fixing rod 6; the outer side wall of the cutting chamber 2 is fixedly provided with an impurity collecting box 15; the impurity collecting box 15 is communicated with the cutting chamber 2 through a water inlet 3; the impurity delivery plate 13 is inclined toward the impurity collection box 15; the lower end of the water inlet 3 between the cutting chamber 2 and the impurity collecting box 15 is flush with the end surface of the impurity conveying plate 13; a water inlet 3 for communicating the cutting chamber 2 with the drifting chamber 31 is arranged on the partition plate in the water tank 1; a granulation box 16 is fixedly arranged on the outer side wall of the drift chamber 31; a heating plate 17 for heating and melting the thin plastic film is fixedly arranged at the top of the granulation box 16; a first inclined plate 20 is fixedly arranged on the inner wall of the granulation box 16 below the heating plate 17; the first inclined plate 20 is uniformly provided with circular through holes 21; the side wall of the water tank 1 is provided with a water inlet 3 for communicating the granulation tank 16 with the drifting chamber 31; the water inlet 3 between the drift chamber 31 and the granulation tank 16 is located above the first inclined plate 20; a second inclined plate 22 for transporting solidified plastic particles is arranged below the first inclined plate 20 in the granulating tank 16; circular through holes 21 are uniformly formed in the second inclined plate 22, and the size of the circular through holes 21 in the second inclined plate 22 is smaller than that of the circular through holes 21 in the first inclined plate 20; a first water pump 23 is arranged at the bottom of the granulation box 16; the first water pump 23 is communicated with the power nozzle 4 through a connecting pipe fitting; a plastic particle collecting box 19 is fixedly arranged on the outer side of the granulation box 16; the plastic particle collecting box 19 is communicated with the granulation box 16 through the water inlet 3; the lower port of the water inlet 3 on the granulation box 16 is flush with the surface of the second inclined plate 22;

during operation, water is filled in the cutting chamber 2, the drifting chamber 31, the granulation tank 16, the impurity collecting tank 15 and the plastic particle collecting tank 19, then the first water pump 23 is started, at the moment, the first water pump 23 pumps out the water in the granulation tank 16 and sprays out from the power nozzle 4, the water flow sprayed out from the power nozzle 4 is sprayed to the push plate 9 and drives the mounting sleeve ring 8 to rotate by pushing the push plate 9, the conveyor belt 5 simultaneously conveys the plastic film to the inside of the cutting chamber 2, at the moment, the water flow sprayed out from the power nozzle 4 can wash the plastic film, meanwhile, the horizontal cutting blade 7 positioned at the edge of the mounting sleeve ring 8 can cut the plastic film, the plastic film cut into fragments falls on the water surface of the cutting chamber 2 and flows to the inside of the drifting chamber 31 under the impact of the water flow, and the impurities washed from the plastic film are deposited at the bottom of the cutting chamber 2 and flow into the inside of the impurity collecting tank 15 through the impurity conveying plate 13, the plastic film flows through the drift chamber 31 into the surface of the first inclined plate 20 inside the granulation tank 16, where it remains on the surface of the first inclined plate 20, and the water falls from the circular through holes 21 on the first inclined plate 20 into the bottom of the granulation tank 16, and is pumped out by the first water pump 23 to push the rotation of the push plate 9, meanwhile, the heating plate 17 positioned at the top of the granulation tank 16 can heat and melt the cleaned plastic film positioned on the first inclined plate 20, the melted plastic leaks down through the circular through hole 21 and enters the water surface of the granulation tank 16, spherical solid particles are formed through cooling, and the spherical solid particles fall into the plastic particle collecting box 19 through the second inclined plate 22 to be collected (because the diameter of the circular through hole 21 on the second inclined plate 22 is smaller than that of the circular through hole 21 on the first inclined plate 20, the plastic solid particles cannot leak down from the second inclined plate 22).

As an embodiment of the invention, a tapered plate 11 is fixedly arranged on the edge of the lower surface of the mounting collar 8; the top of the conical plate 11 is of a smooth curved surface structure; a vertical cutting blade 12 is fixedly arranged on the bottom plane edge of the conical plate 11; during operation, the rotation of the mounting sleeve ring 8 drives the conical plate 11 to rotate, and the vertical cutting blade 12 at the bottom of the conical plate 11 can perform secondary cutting on the plastic film floating on the water surface of the cutting chamber 2, so that the cutting effect of the plastic film is better.

As an embodiment of the present invention, the outer edge of the push plate 9 is elastically provided with a patting ball 10 through a spring; during operation, the patting ball 10 can be in contact with the plastic film, so that the effect of patting the plastic film is achieved, the impurities on the plastic film can fall off conveniently, and the cleaning effect of water flow on the plastic film is better.

As an embodiment of the present invention, a spherical cavity is opened inside the patting ball 10; the extrusion ball 30 is arranged in the spherical cavity; the extrusion ball 30 is fixedly connected with the end part of the push plate 9 through a pull rope 28; a rubber air bag 29 is fixedly arranged inside the spherical cavity and positioned on the inner side of the extrusion ball 30; the rubber air bag 29 is communicated with a transition air cavity 27 inside the patting ball 10 through a connecting hose; the inner part of the patting ball 10 is uniformly provided with columnar chambers 26 positioned on the outer side of the transition air cavity 27; the cylindrical chamber 26 is communicated with a transition air cavity 27; a piston plate 25 is arranged inside the cylindrical chamber 26 in a sliding manner; the outer side surface of the piston plate 25 is fixedly connected with one end of the puncture needle 24; the free end of the puncture needle 24 extends out of the outer edge of the racket ball 10; the during operation, under the effect of rivers impact force, push pedal 9 rotates around vertical dead lever 6, under the effect of centrifugal force, clap ball 10 and throw away from the direction of push pedal 9, and this moment because extrusion ball 30 is by the tip of stay cord 28 fixed connection at push pedal 9, extrusion ball 30 can extrude the rubber gasbag 29 that is located clap ball 10 inside this moment, the inside of gas in the rubber gasbag 29 through coupling hose entering transition air cavity 27, the inside that finally gets into column cavity 26 pushes away piston plate 25 to the outward flange of clapping ball 10, make the pjncture needle 24 that links firmly with piston plate 25 stretch out the outward flange of clapping ball 10, pjncture needle 24 can cut the plastic film at clapping ball 10 pivoted in-process this moment, thereby make cutting efficiency faster.

As an embodiment of the present invention, the outer surface of the patting ball 10 is coated with a cushion pad; the puncture needle 24 penetrates through a cushion pad outside the batting ball 10; in operation, when needing to stop work and closing first water pump 23, installation lantern ring 8 is in the state of slowing down this moment, and patting ball 10 can take place the shake because speed descends and hit horizontal cutting blade 7 to smash horizontal cutting blade 7 and break, the blotter then can prevent to pat ball 10 and hit horizontal cutting blade 7 and break.

As an embodiment of the present invention, the opposite inner walls of the cutting chamber 2 are provided with flushing nozzles 32; the number of the flushing nozzles 32 is two rows; and the two rows of the flushing nozzles 32 are arranged in central symmetry about the vertical fixing rod 6; the connecting line of the two rows of the power nozzles 4 and the connecting line of the two rows of the flushing nozzles 32 are crossed; the flushing nozzle 32 is communicated with the second water pump 14 through a connecting pipe; the second water pump 14 is positioned at the top of the impurity collecting box 15; the power of the second water pump 14 is less than that of the first water pump 23; when the device works, the second water pump 14 pumps clean water on the upper layer in the impurity collecting box 15 and sprays the clean water out of the flushing sprayer 32, and the power of the second water pump 14 is smaller than that of the first water pump 23, so that the speed of water flow sprayed out of the flushing sprayer 32 is lower, and the rotation of the mounting sleeve ring 8 cannot be hindered; the water sprayed from the flushing nozzles 32 can be used for cleaning the plastic film on the one hand and can prevent the plastic film from wrapping the push plate 9 on the other hand, thereby avoiding stopping the rotation of the push plate 9.

The specific working process of the invention is as follows:

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A plastic film pelletizer, characterized in that: comprises a water tank (1), a horizontal cutting blade (7), a mounting sleeve ring (8), a push plate (9), an impurity collecting box (15), a granulation box (16), a plastic particle collecting box (19) and a first water pump (23); the inside of the water tank (1) is divided into a cutting chamber (2) and a drifting chamber (31) through a partition plate; a conveyor belt (5) for conveying the plastic film is arranged at the top end of the cutting chamber (2); the bottom of the cutting chamber (2) is provided with an inclined impurity conveying plate (13); a vertical fixing rod (6) is fixedly arranged at the center position in the cutting chamber (2), and the bottom end of the vertical fixing rod (6) is fixed on the surface of the impurity conveying plate (13); the vertical fixed rod (6) is movably sleeved with an installation lantern ring (8); an annular limiting block arranged on the inner wall of the mounting lantern ring (8) is in sliding connection with an annular sliding groove arranged on the surface of the vertical fixing rod (6); push plates (9) are uniformly arranged on the outer edge of the mounting lantern ring (8); the outer edge of the mounting lantern ring (8) is positioned in a gap of the push plate (9) and is fixedly provided with a horizontal cutting blade (7), and the horizontal cutting blade (7) is positioned on different horizontal planes; the inner wall of the cutting chamber (2) is provided with a power nozzle (4) which sprays water flow to the side surface of the push plate (9); the power spray heads (4) are positioned on the mutually opposite inner walls of the cutting chamber (2); the number of the power spray heads (4) is two, and the two rows of the power spray heads (4) are centrosymmetric about the vertical fixed rod (6); the outer side wall of the cutting chamber (2) is fixedly provided with an impurity collecting box (15); the impurity collecting box (15) is communicated with the cutting chamber (2) through a water inlet (3); the impurity conveying plate (13) is inclined towards the impurity collecting box (15); the lower port of the water inlet (3) between the cutting chamber (2) and the impurity collecting box (15) is flush with the end surface of the impurity conveying plate (13); a water inlet (3) for communicating the cutting chamber (2) and the drifting chamber (31) is formed in the partition plate in the water tank (1); a granulation box (16) is fixedly arranged on the outer side wall of the drift chamber (31); a heating plate (17) for heating and melting the thin plastic film is fixedly arranged at the top of the granulating box (16); a first inclined plate (20) is fixedly arranged on the inner wall of the granulating box (16) below the heating plate (17); circular through holes (21) are uniformly formed in the first inclined plate (20); a water inlet (3) for communicating the granulation tank (16) and the drifting chamber (31) is formed in the side wall of the water tank (1); the water inlet (3) between the drift chamber (31) and the granulation tank (16) is positioned above the first inclined plate (20); a second inclined plate (22) for transporting solidified plastic particles is arranged below the first inclined plate (20) in the granulating box (16); circular through holes (21) are uniformly formed in the second inclined plate (22), and the size of the circular through holes (21) in the second inclined plate (22) is smaller than that of the circular through holes (21) in the first inclined plate (20); a first water pump (23) is arranged at the bottom of the granulating tank (16); the first water pump (23) is communicated with the power nozzle (4) through a connecting pipe fitting; a plastic particle collecting box (19) is fixedly arranged on the outer side of the granulating box (16); the plastic particle collecting box (19) is communicated with the granulating box (16) through a water inlet (3); the lower port of the water inlet (3) on the granulating tank (16) is flush with the surface of the second inclined plate (22).

2. A plastic film pelletizer as claimed in claim 1, wherein: a conical plate (11) is fixedly arranged on the edge of the lower surface of the mounting lantern ring (8); the top of the conical plate (11) is of a smooth curved surface structure; the edge of the bottom plane of the conical plate (11) is fixedly provided with a vertical cutting blade (12).

3. A plastic film pelletizer as claimed in claim 1, wherein: the outer edge of the push plate (9) is elastically provided with a beating ball (10) through a spring.

4. A plastic film pelletizer as claimed in claim 3, wherein: a spherical cavity is formed in the beating ball (10); a squeezing ball (30) is arranged in the spherical cavity; the extrusion ball (30) is fixedly connected with the end part of the push plate (9) through a pull rope (28); a rubber air bag (29) is fixedly arranged inside the spherical cavity and positioned at the inner side of the extrusion ball (30); the rubber air bag (29) is communicated with a transition air cavity (27) inside the patting ball (10) through a connecting hose; the inner part of the patting ball (10) is uniformly provided with columnar chambers (26) positioned on the outer side of the transition air cavity (27); the cylindrical cavity (26) is communicated with the transition air cavity (27); a piston plate (25) is arranged in the cylindrical chamber (26) in a sliding manner; the outer side surface of the piston plate (25) is fixedly connected with one end of the puncture needle (24); the free end of the puncture needle (24) extends out of the outer edge of the racket ball (10).

5. A plastic film pelletizer as claimed in claim 4, wherein: the outer surface of the beating ball (10) is coated with a buffer pad; the puncture needle (24) penetrates through a buffer pad on the outer part of the batting ball (10).

6. A plastic film pelletizer as claimed in claim 1, wherein: the opposite inner wall of the cutting chamber (2) is provided with a washing nozzle (32); the number of the flushing nozzles (32) is two rows; and the two rows of flushing nozzles (32) are arranged in central symmetry around the vertical fixed rod (6); the connecting line of the two rows of the power nozzles (4) and the connecting line of the two rows of the flushing nozzles (32) are crossed; the flushing nozzle (32) is communicated with the second water pump (14) through a connecting pipe fitting; the second water pump (14) is positioned at the top of the impurity collecting box (15); the power of the second water pump (14) is less than the power of the first water pump (23).