CN111283919A

CN111283919A - Environment-friendly waste plastic crusher

Info

Publication number: CN111283919A
Application number: CN202010115458.7A
Authority: CN
Inventors: 范泽浩
Original assignee: Hangzhou Luyang Technology Co Ltd
Current assignee: Hangzhou Luyang Technology Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-06-16

Abstract

The present invention provides an environment-friendly waste plastic crusher, comprising: a feeding hopper is arranged above the machine body, a funnel-shaped feeding plate is arranged at the upper part in the machine body, a crushing and grinding device is correspondingly arranged below the discharge end of the feeding plate and comprises a hollow cylindrical outer wall, a feeding hole and a discharge hole are correspondingly formed in the outer wall, a hollow cylindrical crushing and grinding runner is coaxially arranged in the outer wall, openings are correspondingly formed in two ends of the crushing and grinding runner, and cylindrical secondary crushing teeth are eccentrically arranged in the crushing and grinding runner; a grinding cavity is formed between the inner surface of the outer wall and the outer surface of the crushing grinding rotating wheel, a spare part between the outer surface of the secondary crushing tooth and the inner surface of the crushing grinding rotating wheel forms a secondary crushing cavity, a plurality of grinding blocks are arranged on the outer surface of the crushing grinding rotating wheel, and crushing cutters are annularly arranged on the inner surface of the crushing grinding rotating wheel on two sides of the opening. The environment-friendly waste plastic crusher has the advantages of good crushing effect, environmental protection, low energy consumption and the like.

Description

Environment-friendly waste plastic crusher

Technical Field

The invention relates to the technical field of plastic crushing, in particular to an environment-friendly waste plastic crusher.

Background

Plastics are widely used in human life as an indispensable article for human life, but plastics are difficult to degrade, so recycling of used waste plastics is indispensable, larger waste plastics are difficult to recycle, a plastic crusher becomes one of equipments indispensable for recycling waste plastics, the smaller the particles of plastics are, the more the possibility of recycling is, the more the existing plastic crusher is difficult to powerfully crush plastics, and waste plastics cannot be crushed to a desired size.

Disclosure of Invention

The invention provides an environment-friendly waste plastic crusher which has the advantages of good crushing effect, environmental protection, low energy consumption and the like.

The technical scheme adopted by the invention is as follows: an environment-friendly waste plastic crusher comprising:

the crushing and grinding machine comprises a machine body, wherein a feeding hopper is arranged above the machine body, a funnel-shaped feeding plate is arranged at the upper part in the machine body, a crushing and grinding device is correspondingly arranged below the discharge end of the feeding plate and comprises a hollow cylindrical outer wall, a feeding hole and a discharge hole are correspondingly formed in the outer wall, the feeding hole is arranged corresponding to the discharge end of the feeding plate, a hollow cylindrical crushing and grinding runner is coaxially arranged in the outer wall, openings are correspondingly formed in two ends of the crushing and grinding runner, and cylindrical secondary crushing teeth are eccentrically arranged in the crushing and grinding runner; a grinding cavity is formed between the inner surface of the outer wall and the outer surface of the crushing grinding rotating wheel, a spare part between the outer surface of the secondary crushing tooth and the inner surface of the crushing grinding rotating wheel forms a secondary crushing cavity, a plurality of grinding blocks are arranged on the outer surface of the crushing grinding rotating wheel, and crushing cutters are annularly arranged on the inner surface of the crushing grinding rotating wheel on two sides of the opening. The waste plastic is fed from a feeding port, the waste plastic is primarily crushed by a primary crushing chamber, the waste plastic blocks which are primarily crushed enter a secondary crushing chamber through a feeding port and a discharging end of a feeding plate, and are secondarily crushed by a crushing knife, because the crushing and grinding rotating wheel is eccentrically provided with the secondary crushing teeth, when the waste plastic blocks are crushed under the action of the crushing cutter and the secondary crushing teeth, can roughly screen out smaller waste plastic blocks, the larger waste plastic blocks can not fall down and continue to be crushed, the screened smaller waste plastic blocks enter a grinding cavity through a grinding block, grind through the grinding piece, grinding piece refines less plastic pellet with the outer wall, will grind and put all make the structure compacter in broken grinder with the breakage, and energy resource consumption is low to can grind waste plastics in the breakage.

Furthermore, two cylindrical fixed disks are oppositely arranged in the outer wall, the diameter of each fixed disk is the same as the inner diameter of the outer wall, a first motor is arranged in at least one fixed disk and connected with a turntable, the two turntables are fixedly connected with the shell of the crushing grinding rotating wheel, the turntable is connected with a transmission shaft, the transmission shaft penetrates through the shell of the crushing grinding rotating wheel and is connected with a reverse tooth mechanism, the transmission shaft is fixedly connected with a second-stage crushing tooth, and the other end of the transmission shaft is connected with another turntable. The motor starts, drives the carousel and rotates, and the carousel drives the shell rotation of broken grinding runner, and reverse tooth mechanism is connected to the transmission shaft, can be opposite with broken tooth of second grade and the rotatory direction of broken grinding runner, and the rotation opposite direction of the broken tooth of second grade and broken sword promptly, broken waste plastics that like this can be better promote crushing effect, and the while fixed disk prevents that waste plastics from falling out and grinds the chamber and cause environmental pollution, is favorable to the environmental protection.

Furthermore, a rotating gap is arranged in the outer wall, the rotating gap divides the outer wall into an annular upper wall and an annular lower wall, and a through groove is formed in the lower wall; be equipped with the rotor plate in the swivel gap, fixed connection bracing piece on the rotor plate, bracing piece one end is through leading to on groove fixed connection crushing grinding runner's the surface. Because the broken runner shell that grinds links to each other through the bracing piece between with the rotor plate, when broken runner that grinds rotated, the rotor plate synchronous rotation when the rotor plate body turned to and blocks discharge gate and feed inlet, made to become an inclosed space in the outer wall, can prevent like this that the dust of material when grinding and breakage from spilling over, reduce environmental pollution. And the bracing piece can stir the plastics that grind the intracavity when driving the rotor plate pivoted, can accelerate the motion of waste plastics to increase the grinding speed, also can prevent simultaneously that waste plastics from blockking up in grinding the chamber, improve this waste plastics breaker's life. When the space between the rotor plate changes to discharge gate and feed inlet, tentatively broken waste plastics get into from the feed inlet, carry out the secondary crushing and grind, the discharge gate then will refine the back and go out from the discharge gate, can automatic feeding and ejection of compact, need not extravagant manpower again and go the feeding and the ejection of compact of control when grinding the breakage, saved manpower, financial resources and energy effectively. Simultaneously, the distance between the rotating plates can be changed according to the time of feeding and discharging, so that the operation is simple and convenient.

Furthermore, the lower wall is provided with a screen at the discharge port, the thickness of the screen is smaller than that of the lower wall, the height of the upper surface of the screen is lower than that of the lower wall, and the height of the lower surface of the screen is lower than that of the upper wall. Set up like this and can avoid grinding piece and rotor plate direct with the screen cloth contact, reduced the change frequency of screen cloth, increase this plastics breaker's life, and waste plastics piece is greater than the stop in screen cloth net hole on the screen cloth, when treating that the grinding piece is rotatory to be passed through, take waste plastics piece to grinding the chamber in, grind waste plastics piece to the size that is less than screen cloth net hole, make waste plastics piece pass through the screen cloth and follow the discharge gate ejection of compact, the effect of screen cloth screening when making waste plastics not form the jam is better.

Furthermore, an anti-collision plate is arranged between the adjacent crushing cutters, the bottom of the anti-collision plate is fixedly connected with the inner surface of the crushing grinding rotating wheel, the top of the anti-collision plate is semicircular, and the bottom of the anti-collision plate is in contact with the bottom of the crushing cutters. The bottom of the anti-collision plate is in contact with the bottom of the crushing cutter, a supporting effect is given to the crushing cutter, the service life of the crushing cutter is prolonged, meanwhile, the semicircular shape of the top of the anti-collision plate can reduce the splashing impact of waste plastics on the crushing grinding rotating wheel when the waste plastics are crushed, the service life of the crushing grinding rotating wheel is prolonged, and the service life of the waste plastics crusher is prolonged. And the anticollision board can regard as the strong point of secondary crushing, and the extrusion force that produces when rotatory not only can continue to extrude messenger's plastics surface crackle to plastics, and broken with higher speed promotes crushing efficiency and crushing effect.

Furthermore, a conical block is arranged below the crushing grinding rotating wheel, grinding walls are arranged on two sides of the conical block and fixed on the machine body, the bottom of the conical block is fixedly connected with a second motor, and the second motor is fixed on the fixed seat. The motor makes the conical block rotatory, and the conical block carries out continuous grinding with grinding the wall to plastic granules, until more fining with plastic granules, and the plastic granules who grinds out like this are more even, and reuse's effect is better.

Furthermore, a grinding channel is formed between the outer wall of the grinding wall and the outer surface of the conical block, and the gap of the grinding channel is gradually reduced from top to bottom. The plastic particles refined by the crushing and grinding device pass through the grinding channel, and the plastic particles refined by the grinding of the outer wall of the grinding wall and the conical grinding are more uniform, so that the utilization rate of the plastic particles is improved. And the size of the end of the grinding channel determines the final size of the plastic particles, so that the plastic particles can be refined to the expected effect.

Furthermore, a vibration motor is arranged below the feeding plate, a primary crushing chamber is formed between the feeding plate and the machine body, and primary crushing teeth used for primary crushing of materials are arranged in the primary crushing chamber. During the broken grinder of the first broken rear portion of waste plastics, some then drop to the flitch that delivers material, the flitch downward sloping can prevent that plastic granules from piling up and causing the jam of primary broken chamber on the flitch, prevents this waste plastics breaker trouble to improve life. The vibration motor can strengthen the vibration effect of the feeding plate and improve the feeding speed.

The through hole is formed in the rotating plate and is matched with the feeding hole and the discharging hole. When the through hole and the feeding hole have overlapped parts, feeding is started; when the through-hole does not have the overlap portion with the feed inlet, then the material stops to get into the pan feeding of indirectness and can reduce the material density in the broken intracavity of second grade, prevents that the material in the broken chamber of second grade is too much to improve crushing effect.

Compared with the prior art, the invention has the beneficial effects that: waste plastics are primarily crushed and enter the secondary crushing cavity through the feed inlet, because the secondary crushing teeth are eccentrically arranged in the crushing and grinding runner, the waste plastic blocks can be crushed under the action of the crushing cutter and the secondary crushing teeth, simultaneously, the smaller waste plastic blocks can be roughly screened out, the screened smaller waste plastic blocks enter the grinding cavity through the grinding block, the grinding block and the lower wall refine the smaller plastic block, so that the crushing effect of the crusher is better, meanwhile, the secondary crushing cavity is in a closed state during crushing, dust during crushing cannot pollute the environment, the refined plastic particles have better recycling value, reduce environmental pollution, the crushing and grinding device has more compact structure and low energy consumption, can grind the waste plastic while crushing, and can effectively reduce dust overflow and reduce environmental pollution when the crushing and grinding device works. Broken grinder only needs a power just can accomplish simultaneously and grind and breakage, and the rotor plate rotates along with broken grinder and just can accomplish feeding and the ejection of compact moreover, does not need more energy to go to control to reach energy-conserving effect.

Drawings

FIG. 1 is a schematic view of the structure of an environmentally friendly waste plastic crusher;

FIG. 2 is a schematic view of a crushing and grinding wheel during grinding;

FIG. 3 is a schematic illustration of a crushing and grinding wheel as it grinds a feed material;

FIG. 4 is a schematic view of a rotating plate;

FIG. 5 is a schematic view of a crushing and grinding wheel;

FIG. 6 is a schematic view of the structure of the lower wall;

FIG. 7 is a schematic view of a crushing and grinding rotor according to embodiment 3;

FIG. 8 is a graph showing the experimental results of example 4.

Reference numerals: 1, a machine body; 2, feeding into a hopper; 3a primary crushing chamber; 3 a; primary crushing teeth; 3b a feeding plate; 4, crushing and grinding device; 4a outer wall; 4a1 rotational clearance; 4a2 upper wall; 4a3 lower wall; 4b a feed inlet; 4b1 discharge port; 4c crushing and grinding the rotating wheel; 4c1 opening; 4c2 grinding block; 4c3 crushing knife; 4c4 crash panels; 4d, secondary crushing teeth; 41 through grooves; 42 fixing the disc; 43 a first motor; a 44 rotating disk; 45 a transmission shaft; 46 a reverse gear mechanism; 5 grinding cavity; 6, a secondary crushing cavity; 7 supporting rods; 8 rotating the plate; 8a through hole; 9, a screen mesh; 10, a conical block; 11 grinding the wall; 12, a second motor; 13, fixing a base; 14 grinding the channel; 15 material collecting box; 16 a vibration motor; and 17, a second screen.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

according to the accompanying drawings 1 to 6 of the specification, an environmentally friendly waste plastic crusher comprises:

the crushing and grinding machine comprises a machine body 1, wherein a feeding hopper 2 is arranged above the machine body 1, a funnel-shaped feeding plate 3b is arranged at the upper part in the machine body 1, a crushing and grinding device 4 is correspondingly arranged below the discharge end of the feeding plate 3b, the crushing and grinding device 4 comprises a hollow cylindrical outer wall 4a, a feed inlet 4b and a discharge outlet 4b1 are correspondingly arranged on the outer wall 4a, the feed inlet 4b is arranged corresponding to the discharge end of the feeding plate 3b, a hollow cylindrical crushing and grinding runner 4c is coaxially arranged in the outer wall 4a, openings 4c1 are correspondingly arranged at two ends of the crushing and grinding runner 4c, and cylindrical secondary crushing teeth 4d are eccentrically arranged in the crushing and grinding; a grinding cavity 5 is formed between the inner surface of the outer wall 4a and the outer surface of the crushing and grinding rotating wheel 4c, a secondary crushing cavity 6 is formed between the outer surface of the secondary crushing tooth 4d and the inner surface of the crushing and grinding rotating wheel 4c, wherein a plurality of grinding blocks 4c2 are arranged on the outer surface of the crushing and grinding rotating wheel 4c, and crushing cutters 4c3 are annularly arranged on the inner surface of the crushing and grinding rotating wheel 4c and positioned on two sides of the opening 4c 1. Waste plastics enter from a feeding port, the waste plastics are primarily crushed through a primary crushing chamber 3, the primarily crushed waste plastics block passes through a discharging end of a feeding plate 3b, the waste plastics block enters a secondary crushing cavity 6 through a feeding port 4b, secondary crushing is carried out through a crushing cutter 4c3, as a secondary crushing tooth 4d is eccentrically arranged in a crushing and grinding rotating wheel 4c, the waste plastics block can be crushed under the action of the crushing cutter 4c3 and the secondary crushing tooth 4d, smaller waste plastics block can be roughly screened out, the larger waste plastics block can not fall down and continue to be crushed, the screened smaller waste plastics block enters a grinding cavity 5 through a grinding block 4c2, the grinding block 4c2 is used for grinding, the grinding block 4c2 and an outer wall 4a refine the smaller plastics block, the grinding and crushing are both placed in a crushing and grinding device 4, so that the structure is more compact, low energy consumption and the waste plastics can be ground while being crushed.

Furthermore, two cylindrical fixed disks 42 are relatively arranged in the outer wall 4a, the diameter of each fixed disk 42 is the same as the inner diameter of the outer wall 4a, a first motor 43 is arranged in at least one fixed disk 42, the first motor 43 is connected with a rotating disk 44, the two rotating disks 44 are fixedly connected with the shell of the crushing and grinding rotating wheel 4c, the rotating disks 44 are connected with a transmission shaft 45, the transmission shaft 45 penetrates through the shell of the crushing and grinding rotating wheel 4c to be connected with a reverse tooth mechanism 46, the transmission shaft 45 is fixedly connected with the secondary crushing teeth 4d, and the other end of the transmission shaft 45. Motor 43 starts, drive carousel 44 and rotate, carousel 44 drives the shell rotation of broken grinding runner 4c, reverse tooth mechanism 46 is connected to transmission shaft 45, can be opposite with the rotatory direction of second grade broken tooth 4d and broken grinding runner 4c, the rotation opposite direction of second grade broken tooth 4d and broken sword 4c3 promptly, broken waste plastics that like this can be better, promote crushing effect, fixed disk 42 prevents that waste plastics from falling out grinding chamber 5 and causing environmental pollution simultaneously, be favorable to the environmental protection.

Further, a rotating gap 4a1 is arranged in the outer wall 4a, the rotating gap 4a1 divides the outer wall 4a into an annular upper wall 4a2 and an annular lower wall 4a3, and a through groove 41 is formed in the lower wall 4a 3; a rotating plate 8 is arranged in the rotating gap 4a1, a supporting rod 7 is fixedly connected on the rotating plate 8, and one end of the supporting rod 7 is fixedly connected on the outer surface of the crushing and grinding runner 4c through a through groove 41. Because the shell of the crushing and grinding rotating wheel 4c is connected with the rotating plate 8 through the supporting rod 7, when the crushing and grinding rotating wheel 4c rotates, the rotating plate 8 rotates synchronously, and when the plate body of the rotating plate 8 rotates to block the discharge port 4b1 and the feed port 4b, the outer wall 4a forms a closed space, so that the dust of the materials during grinding and crushing can be prevented from overflowing, and the environmental pollution is reduced. And the supporting rod 7 can stir the plastic in the grinding cavity 5 while driving the rotating plate 8 to rotate, so that the movement of the waste plastic can be accelerated, the grinding speed is increased, the waste plastic can be prevented from being blocked in the grinding cavity 5, and the service life of the waste plastic crusher is prolonged. When the space between the rotor plate 8 changes discharge gate 4b1 and feed inlet 4b, tentatively broken waste plastics gets into from feed inlet 4b, carry out secondary crushing and grinding, discharge gate 4b1 then will refine the back and go out from discharge gate 4b1, can automatic feeding and ejection of compact, need not extravagant manpower again and goes the feeding and the ejection of compact of control grinding when broken, has saved manpower, financial resources and energy effectively. Simultaneously, the distance between the rotating plates 8 can be changed according to the feeding and discharging time, so that the operation is simple and convenient.

Further, the lower wall 4a3 is provided with a screen 9 at the discharge port 4b1, the thickness of the screen 9 is smaller than that of the lower wall 4a3, the height of the upper surface of the screen 9 is lower than that of the lower wall 4a3, and the height of the lower surface of the screen 9 is lower than that of the upper surface of the upper wall 4a 2. Set up like this and can avoid grinding piece 4c2 and rotor plate 8 direct with screen cloth 9 contact, the change frequency of screen cloth 9 has been reduced, increase this plastics breaker's life, and the waste plastics piece is greater than staying on screen cloth 9 of screen cloth 9 hole, treat that grinding piece 4c2 is rotatory when passing through, take the waste plastics piece to grinding chamber 5 in, grind the waste plastics piece to the size that is less than screen cloth 9 hole, make the waste plastics piece pass through screen cloth 9 and follow the ejection of compact of discharge gate 4b1, the effect that screen cloth 9 screened when making waste plastics not form the jam is better.

Furthermore, an anti-collision plate 4c4 is arranged between the adjacent crushing blades 4c3, the bottom of the anti-collision plate 4c4 is fixedly connected with the inner surface of the crushing grinding runner 4c, the top of the anti-collision plate 4c4 is semicircular, and the bottom of the anti-collision plate 4c4 is in contact with the bottom of the crushing blade 4c 3. The bottom of the anti-collision plate 4c4 is in contact with the bottom of the crushing cutter 4c3, a supporting function is provided for the crushing cutter 4c3, the service life of the crushing cutter 4c3 is prolonged, meanwhile, the semicircular top of the anti-collision plate 4c4 can reduce the splashing impact of waste plastics on the crushing grinding rotating wheel 4c during crushing, the service life of the crushing grinding rotating wheel 4c is prolonged, and the service life of the waste plastic crusher is prolonged. And crashproof board 4c4 can regard as the strong point of secondary crushing, and the extrusion force that produces plastics can continue to extrude plastics when rotatory and make plastics surface produce the crackle, and the crushing is accelerated, promotes crushing efficiency and crushing effect.

Furthermore, a conical block 10 is arranged below the crushing and grinding rotating wheel 4c, grinding walls 11 are arranged on two sides of the conical block 10, the grinding walls 11 are fixed on the machine body 1, the bottom of the conical block 10 is fixedly connected with a second motor 12, and the motor is fixed on a fixed seat 13. The motor makes conical block 10 rotatory, and conical block 10 and grinding wall 11 carry out continuous grinding to plastic granules until more refine plastic granules, and the plastic granules that grind like this are more even, and reuse's effect is better.

Furthermore, a grinding channel 14 is formed between the outer wall 4a of the grinding wall 11 and the outer surface of the conical block 10, and the clearance of the grinding channel 14 gradually decreases from top to bottom. The plastic particles refined by the crushing and grinding device 4 pass through the grinding channel 14, and the refined plastic particles are more uniform through grinding the outer wall 4a of the grinding wall 11 and the conical grinding, so that the utilization rate of the plastic particles is improved. And the size of the end of the grinding channel 14 determines the final size of the plastic granules, enabling them to be refined to the desired effect.

Furthermore, a vibration motor 16 is arranged below the feeding plate 3b, a primary crushing chamber 3 is formed between the feeding plate 3b and the machine body 1, and primary crushing teeth 3a for primary crushing of materials are arranged in the primary crushing chamber 3. During the broken grinder 4 of the first broken back part of waste plastics falls, some then fall to the flitch 3b that delivers to, the flitch 3b downward sloping can prevent that the plastic granules from piling up and causing the jam of elementary broken chamber on the flitch 3b, prevents this waste plastics breaker trouble to improve life. The vibration motor 16 can enhance the vibration effect of the feeding plate 3b and increase the feeding speed.

The rotating plate 8 is provided with a through hole 8a, and the through hole 8a is matched with the feeding hole 4b and the discharging hole 4b 1. When the through hole 8a has an overlapping portion with the feed port 4b, feeding is started; when the through hole 8a does not have the overlap portion with the feed inlet 4b, then the material stops to get into the pan feeding of indirectness and can reduce the material density in the broken chamber 6 of second grade, prevents that the material in the broken chamber 6 of second grade is too much to improve crushing effect.

Example 2:

when the environmentally friendly waste plastic crusher according to the accompanying fig. 1-6 of the specification is operated,

starting a first motor and a second motor 12, wherein the first motor drives a rotary table and a transmission shaft to rotate, the rotary table drives a crushing and grinding rotating wheel 4c to rotate, the crushing and grinding rotating wheel 4c drives a rotating plate to synchronously rotate through a supporting rod, the transmission shaft is connected with a reverse tooth mechanism 46, the reverse tooth mechanism 46 can enable a secondary crushing tooth 4d and the crushing and grinding rotating wheel 4c to rotate in opposite directions, namely the secondary crushing tooth 4d and a crushing knife 4c3 rotate in opposite directions, waste plastics enter from a feeding port at the moment, primary crushing is carried out on the waste plastics through a primary crushing tooth 3a in a primary crushing chamber 3, and feeding is started when a through hole 8a and a feeding port 4b are overlapped; broken grinding runner 4c and rotor plate continue to rotate, when through-hole 8a does not have the overlap portion with feed inlet 4b, then the material stops to get into the pan feeding of indirectness and can reduce the material density in the broken intracavity of second grade, prevents that the material in the broken chamber of second grade is too much. Waste plastics passing through the secondary crushing cavity drop into the grinding cavity through opening, the waste plastic blocks are larger than the screen meshes 9 and stay on the screen meshes 9, when the grinding blocks 4c2 rotate to pass through, the waste plastic blocks are brought into the grinding cavity to be ground, the waste plastic blocks are ground to be smaller than the screen meshes 9, the waste plastic blocks are discharged from the discharge port through the screen meshes 9 and fall into the grinding channel 14 formed between the outer wall 4a of the grinding wall 11 and the outer surface of the conical block 10, the conical block 10 rotates by the aid of the motor II 12, the conical block 10 and the grinding wall 11 grind plastic particles, and finally refined plastic particles enter the material collecting box 15 to be collected.

Wherein, the middle of grinding piece 4c2 is protruding, and the height descends from middle to both sides, can make the grinding classification in grinding chamber 5 like this, and the both sides grind great plastic piece, and middle grinding less plastics can grind more plastics like this in grinding chamber 5, increases the rate of utilization of using the grinding piece, improves the broken speed of grinding of plastics.

Example 3:

an environment-friendly waste plastic crusher according to the description attached figures 1, 4-7.

Under the same conditions as those of the embodiment 1 and the embodiment 2, the lower wall 4a3 is provided with the second screen 17 with a mesh opening larger than that of the screen 9, the second screen 17 is positioned between the discharge opening 4b1 and the feed opening 4b, and the screen 9 is additionally arranged below the upper wall 4a2 corresponding to the screen 9, so that when plastic is ground in the grinding cavity 5, larger plastic can enter the outer wall 4a through the second screen 17, the material is pushed out from the feed opening 4b along with the rotation of the rotating plate 8 and enters the secondary crushing cavity 6 and the grinding cavity 5 again to form a loop, the plastic is crushed and ground again, the crushing effect is improved, meanwhile, the plastic accumulation in the grinding cavity 5 can be avoided, and the grinding effect is improved.

Example 4:

under otherwise identical conditions, one group was the crushing and grinding apparatus 4 having only the crushing teeth 4c3, two groups were the crushing and grinding apparatus 4 having only the impact plate 4c4, three groups were the crushing and grinding apparatus 4 having both the crushing teeth 4c3 and the impact plate 4c4, and three groups were simultaneously fed for the time required for each group when the crushed plastic pellets had masses of 5kg, 10kg and 20kg, respectively.

As can be seen from FIG. 8 of the specification, crushing and grinding of waste plastics of the same quality, with both crushing teeth 4c3 and crash proof plate 4c4, requires significantly less time than with only crushing teeth 4c3 or only crash proof plate 4c 4. And the larger the quality of the broken plastic particles is, the larger the difference between the three groups and the other two groups is, and the shorter the time is. Therefore, the crushing and grinding device has good crushing efficiency and good crushing effect.

A synchronizer gear integration device with a reverse function is disclosed in the prior art with the patent number CN105020289A, which can implement the function of the reverse gear mechanism 46 in the present application, and is not described in detail in this specification.

While the present invention has been described with reference to the above exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An environment-friendly waste plastic crusher comprising:

organism (1), organism (1) top is equipped with into hopper (2), upper portion is equipped with funnel type delivery sheet (3 b), its characterized in that in organism (1): a crushing and grinding device (4) is correspondingly arranged below the discharge end of the feeding plate (3 b), the crushing and grinding device (4) comprises a hollow cylindrical outer wall (4 a), a feed inlet (4 b) and a discharge outlet (4 b 1) are correspondingly formed in the outer wall (4 a), the feed inlet (4 b) is arranged corresponding to the discharge end of the feeding plate (3 b), a hollow cylindrical crushing and grinding rotating wheel (4 c) is coaxially arranged in the outer wall (4 a), openings (4 c 1) are correspondingly formed in two ends of the crushing and grinding rotating wheel (4 c), and cylindrical secondary crushing teeth (4 d) are eccentrically arranged in the crushing and grinding rotating wheel (4 c);

a grinding cavity (5) is formed between the inner surface of the outer wall (4 a) and the outer surface of the crushing and grinding rotating wheel (4 c), a spare part between the outer surface of the secondary crushing tooth (4 d) and the inner surface of the crushing and grinding rotating wheel (4 c) forms a secondary crushing cavity (6),

wherein, a plurality of grinding blocks (4 c 2) are arranged on the outer surface of the crushing and grinding rotating wheel (4 c), and crushing knives (4 c 3) are annularly arranged on the inner surface of the crushing and grinding rotating wheel (4 c) and positioned on two sides of the opening (4 c 1).

2. An environmentally friendly waste plastic crusher according to claim 1, characterized in that two cylindrical fixed disks (42) are oppositely disposed in the outer wall (4 a), the diameter of the fixed disks (42) is the same as the inner diameter of the outer wall (4 a), a first motor (43) is disposed in at least one of the fixed disks (42), the first motor (43) is connected with a turntable (44), the two turntables (44) are fixedly connected with the shell of the crushing and grinding runner (4 c), the turntable (44) is connected with a transmission shaft (45), the transmission shaft (45) penetrates through the shell of the crushing and grinding runner (4 c) to be connected with a reverse gear mechanism (46), the transmission shaft is fixedly connected with a secondary crushing tooth (4 d), and the other end of the transmission shaft (45) is connected with another turntable (44).

3. The environmentally friendly waste plastic crusher according to claim 1 or 2, characterized in that a rotating gap (4 a 1) is provided in the outer wall (4 a), the rotating gap (4 a 1) divides the outer wall (4 a) into an annular upper wall (4 a 2) and an annular lower wall (4 a 3), and a through groove (41) is opened on the lower wall (4 a 3); a rotating plate (8) is arranged in the rotating gap (4 a 1), a supporting rod (7) is fixedly connected to the rotating plate (8), and one end of the supporting rod (7) is fixedly connected to the outer surface of the crushing and grinding rotating wheel (4 c) through a through groove (41).

4. An environmentally friendly waste plastic crusher according to claim 3, wherein the lower wall (4 a 2) at discharge outlet (4 b 1) is provided with a screen (9), the thickness of the screen (9) is less than that of the lower wall (4 a 2), and the height of the upper surface of the screen (9) is lower than that of the lower wall (4 a 2), and the height of the lower surface of the screen (9) is lower than that of the upper wall (4 a 2).

5. An environmentally friendly waste plastic crusher as defined in claim 1, wherein an anti-collision plate (4 c 4) is provided between adjacent crushing knives (4 c 3), the bottom of the anti-collision plate (4 c 4) is fixedly connected to the inner surface of crushing grinding rotor (4 c), the top of the anti-collision plate (4 c 4) is semicircular, and the bottom of the anti-collision plate (4 c 4) is in contact with the bottom of crushing knife (4 c 3).

6. An environmentally friendly waste plastic crusher as defined in claim 1, wherein a conical block (10) is provided under said crushing and grinding runner (4 c), grinding walls (11) are provided on both sides of said conical block (10), said grinding walls (11) are fixed to said machine body (1), and a second motor (12) is fixedly connected to the bottom of said conical block (10), said motor being fixed to a fixed base (13).

7. An environmentally friendly waste plastic crusher according to claim 6, characterized in that a grinding channel (14) is formed between the outer wall of the grinding wall (11) and the outer surface of the conical block (10), the grinding channel (14) gradually decreasing in gap from top to bottom.

8. The environmentally friendly waste plastic crusher of claim 1, wherein the bottom inner surface of the machine body (1) is provided with a material collection box (15).

9. An environmentally friendly waste plastic crusher as defined in claim 1, wherein a vibration motor (16) is provided below said feed plate, a primary crushing chamber (3) is formed between said feed plate (3 b) and said machine body (1), and primary crushing teeth (3 a) for primary crushing of the material are provided in said primary crushing chamber (3).

10. An environmentally friendly waste plastic crusher according to claim 3, wherein the rotary plate (8) is provided with through holes (8 a), the through holes (8 a) being provided in cooperation with the feed inlet (4 b) and the discharge outlet (4 b 1).