Anti-jamming PET bottle flake crushing device

Abstract

The invention discloses an anti-jamming PET bottle flake crushing device, and relates to the technical field of bottle flake crushing. The problem of clamping stagnation is solved. The feed hopper is fixed to the top of the first shell and communicated with the first shell, the discharge hopper is fixed to the bottom of the first shell and communicated with the first shell, and two tooth rollers matched with each other are arranged in the first shell. The tooth roller comprises a cavity shaft rotationally connected to the inner wall of the shell and a plurality of crushing pieces in transmission connection to the outer wall of the cavity shaft; and a plurality of transmission grooves are formed in the inner wall of the crushing piece. According to the tooth roller, the whole tooth roller is composed of the cavity shaft and the multiple crushing pieces, transmission fit between the crushing pieces and the cavity shaft is achieved through the transmission grooves and the plug type transmission blocks, and therefore when local crushing pieces are clamped, the crushing pieces and the cavity shaft can still rotate; and the crushing function of the crusher and the crushing piece can be normally carried out while the dynamic suffocation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle chip crushing, and particularly relates to a PET bottle chip crushing device that prevents jamming. Background Art

[0002] PET, also known as polyethylene terephthalate, belongs to crystalline saturated polyester. When recycling PET bottles, the PET bottles need to be first crushed into bottle chips, and then subsequent cleaning, sorting, melting granulation, etc. are carried out.

[0003] After retrieval, a patent with the Chinese patent publication number CN217257586U discloses a regenerated plastic polyester bottle chip crushing and cleaning device, including a box body. A crushing shell is fixedly connected to the top of the box body. A feeding cover is communicated with the top of the crushing shell. Two first motors are fixedly connected to both sides at the rear of the crushing shell. The front side of the output end of the first motor penetrates through the crushing shell and is fixedly connected with a crushing roller. The top of the box body is communicated with the crushing shell. A control box is arranged at the bottom of the box body, and the top of the control box penetrates into the inner cavity of the box body.

[0004] The above patent has the following deficiencies: It uses two mutually meshing crushing rollers for crushing. However, since there may be relatively hard impurities on or inside the PET bottles, this will cause the crushing rollers to get stuck and locked, and in the case of being unable to continue crushing, it will also cause the motor to burn out.

[0005] Therefore, the present invention proposes a PET bottle chip crushing device that prevents jamming. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a PET bottle chip crushing device that prevents jamming.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A PET bottle chip crushing device that prevents jamming includes a first housing, a feeding hopper fixed to the top of the first housing and communicated with the first housing, and a discharging hopper fixed to the bottom of the first housing and communicated with the first housing.

[0009] Two mutually cooperating toothed rollers are arranged inside the first housing. The toothed roller includes a cavity shaft rotatably connected to the inner wall of the first housing and a plurality of crushing pieces drivingly connected to the outer wall of the cavity shaft.

[0010] A plurality of driving grooves are formed in the inner wall of the crushing piece. A plurality of plug-type driving blocks cooperating with the driving grooves are radially slidably connected to the cavity shaft. The cross-section of the cooperation between the driving groove and the plug-type driving block is in a "V" shape. A core shaft is fixedly connected to the inner wall at the axis of the cavity shaft. The inner side wall of the plug-type driving block is connected to the side wall of the core shaft through an elastic body.

[0011] On the side wall of the first housing, there is an integrated driving mechanism for rotationally driving the cavity shafts. The integrated driving mechanism drives the two cavity shafts at the same speed but in opposite directions.

[0012] Preferably: An air pressure gauge is connected and communicated with the outer wall of the cavity shaft. The air pressure gauge is wireless, and a communication unit is built therein.

[0013] Furthermore: A generator stator winding is fixed at the end of the cavity shaft. A generator rotor core is fitted inside the generator stator winding. The generator rotor core is fixed to the first housing through a bracket. The output end of the generator stator winding is electrically connected to the input terminal of the air pressure gauge.

[0014] Based on the foregoing solution: The crushing piece includes a toothed piece and a smooth piece. The toothed pieces and the smooth pieces are arranged alternately, and one group of toothed pieces is fitted on the outer wall of the other group of smooth pieces.

[0015] A better solution in the foregoing solution is: The diameter of the smooth piece is smaller than the diameter of the toothed piece.

[0016] As a further solution of the present invention: A sieve plate is provided on the inner wall of the first housing at the bottom of the toothed roller. The sieve plate is arranged obliquely. One end of the sieve plate above the slope is rotatably connected to the inner wall of the first housing. An opening is provided at the position of the first housing below the slope of the sieve plate. One end of the sieve plate below the slope is connected to the opening through a film.

[0017] Meanwhile, the rotation connection of the sieve plate and the first housing extends to the outer wall of the first housing and then a swing arm is fixed. The other end of the swing arm is rotatably connected to a connecting rod. The other end of the connecting rod is rotatably connected to the eccentric position of the cavity shaft.

[0018] As a preferred solution of the present invention: A reflux lifting mechanism is provided on one side of the first housing. The reflux lifting mechanism includes a second housing fixed to the side wall of the first housing and a lifting roller rotatably connected to the inner walls of the top and bottom of the second housing through roller shafts respectively. A conveyor belt is fitted on the outer wall of the lifting roller. A plurality of uniform material receiving hoppers are provided on the outer wall of the conveyor belt.

[0019] Meanwhile, a feed port communicating with the opening is provided on the side of the second housing at the position of the opening. A discharge port facing downward is provided above the second housing. The discharge port is located above the feed hopper.

[0020] As a better solution of the present invention: The integrated driving mechanism includes a motor and a synchronous belt. The motor is fixed to the side wall of the first housing through bolts. The synchronous belt is in transmission cooperation with the outer walls of the cavity shaft and the roller shaft.

[0021] The beneficial effects of the present invention are:

[0022] 1. In the present invention, the entire toothed roll is composed of a hollow shaft and multiple crushing pieces. The transmission cooperation between the crushing pieces and the hollow shaft is realized through a transmission groove and a plug-type transmission block. Thus, when a local crushing piece gets stuck, the other crushing pieces and the hollow shaft can still rotate, avoiding power failure while enabling the crushing function of the other crushing pieces to proceed normally.

[0023] 2. In the present invention, based on setting the hollow shaft as a hollow structure, when a local crushing piece gets stuck, the plug-type transmission block will continuously slide back and forth along the radial direction of the hollow shaft, causing the air pressure inside the hollow shaft to fluctuate. After the pressure gauge senses the air pressure fluctuation, it will transmit it outward through the communication unit, thus reminding the staff to perceive and maintain it in a timely manner.

[0024] 3. In the present invention, based on setting the pressure gauge as a wireless type, a generator stator winding and a generator rotor core are added, so as to realize self-power supply through electromagnetic induction, solve the problem of wire harness entanglement, and at the same time, the opening and closing of the pressure gauge can be synchronized with the opening and closing of the entire device, without additional control.

[0025] 4. In the present invention, the crushing pieces are set as staggered tooth pieces and smooth pieces, and the diameters of the tooth pieces and the smooth pieces are different, so that the outer contour of the entire toothed roll is "serrated" along the axial direction. Thus, the tooth pieces and the smooth pieces can cooperate, and the adjacent tooth pieces and smooth pieces can all realize the extrusion and shearing function, increasing the crushing effect.

[0026] 5. In the present invention, by setting a sieve plate, it can screen the crushed bottle pieces. At the same time, by setting a connecting rod and a swing arm, it can drive the sieve plate to vibrate up and down, increasing the screening effect. In addition, the power of the hollow shaft and the swing arm comes from the rotation of the hollow shaft, which can realize power integration and make the crushing speed and screening speed fit each other.

[0027] 6. In the present invention, by setting a reflux lifting mechanism, it can lift the larger-sized bottle pieces screened out again and put them into the feeding hopper, so as to realize secondary crushing, ensuring that all bottle pieces can be crushed to the required size before discharging, and increasing the bottle piece crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. is a schematic diagram of the overall structure of a PET bottle piece crushing device with anti-jamming proposed by the present invention;

[0029] Figure 2 FIG. is a schematic diagram of the toothed roll structure of a PET bottle piece crushing device with anti-jamming proposed by the present invention;

[0030] Figure 3 FIG. is a schematic diagram of the cooperation structure between the hollow shaft and the crushing pieces of a PET bottle piece crushing device with anti-jamming proposed by the present invention;

[0031] Figure 4 Schematic diagram of the pressure gauge, generator stator winding, and generator rotor core structure of an anti-jamming PET flake crushing device proposed by the present invention;

[0032] Figure 5 Schematic diagram of the tooth slice and smooth slice structure of an anti-jamming PET flake crushing device proposed by the present invention;

[0033] Figure 6 Schematic diagram of the sieve slice structure of an anti-jamming PET flake crushing device proposed by the present invention;

[0034] Figure 7 Schematic diagram of the reflux lifting mechanism structure of an anti-jamming PET flake crushing device proposed by the present invention.

[0035] In the figure: 1. Housing I; 2. Feeding hopper; 3. Reflux lifting mechanism; 4. Discharge hopper; 5. Comprehensive driving mechanism; 6. Tooth roller; 7. Cavity shaft; 8. Crushing piece; 9. Transmission groove; 10. Plug-type transmission block; 11. Elastic body; 12. Core shaft; 13. Pressure gauge; 14. Generator stator winding; 15. Generator rotor core; 16. Bracket; 17. Tooth slice; 18. Smooth slice; 19. Connecting rod; 20. Swing arm; 21. Sieve slice; 22. Film; 23. Sieve opening; 24. Motor; 25. Synchronous belt; 26. Feeding port; 27. Material storage hopper; 28. Conveyor belt; 29. Roller shaft; 30. Lifting roller; 31. Housing II; 32. Discharge port. Specific embodiments

[0036] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0038] Embodiment 1:

[0039] An anti-jamming PET flake crushing device, as Figures 1-7 shown, includes a housing I 1, a feeding hopper 2 fixed to the top of the housing I 1 and communicating with the housing I 1, and a discharge hopper 4 fixed to the bottom of the housing I 1 and communicating with the housing I 1.

[0040] Two mutually cooperating tooth rollers 6 are arranged inside the housing I 1. The tooth roller 6 includes a cavity shaft 7 rotatably connected to the inner wall of the housing I 1 and a plurality of crushing pieces 8 drivingly connected to the outer wall of the cavity shaft 7.

[0041] A plurality of transmission grooves 9 are formed in the inner wall of the broken piece 8. A plurality of plug-type transmission blocks 10 that cooperate with the transmission grooves 9 are radially slidably connected to the cavity shaft 7. The mating cross-section of the transmission groove 9 and the plug-type transmission block 10 is "V"-shaped. A core shaft 12 is fixed to the inner wall at the axis of the cavity shaft 7. The inner side wall of the plug-type transmission block 10 is connected to the side wall of the core shaft 12 through an elastic body 11.

[0042] A comprehensive driving mechanism 5 for rotationally driving the cavity shaft 7 is provided on the side wall of the housing 1. The comprehensive driving mechanism 5 drives the two cavity shafts 7 at the same speed but in opposite directions.

[0043] When the device is in use, the comprehensive driving mechanism 5 can drive the two cavity shafts 7 to rotate at the same speed in opposite directions, so that the two groups of broken pieces 8 rotate at the same speed in opposite directions. At this time, the PET bottle is put into the top of the feed hopper 2, and then the bottle pieces fall between the two broken pieces 8 due to gravity. The rotation of the broken pieces 8 is used to squeeze and shear the PET bottle for crushing. The crushed PET bottle pieces are then discharged from the discharge hopper 4. And during this process, if a local broken piece 8 is stuck, at this time, since the cavity shaft 7 and the broken piece 8 are driven through the transmission groove 9 and the plug-type transmission block 10, when the broken piece 8 is stuck, there will be a component force along the radial direction of the cavity shaft 7 on the mating surface of the transmission groove 9 and the plug-type transmission block 10, so that the plug-type transmission block 10 overcomes the elastic force of the elastic body 11 and contracts, so that the stuck broken piece 8 is separated from the cavity shaft 7 for transmission.

[0044] In this device, by setting the entire toothed roller 6 as a combination of the cavity shaft 7 and a plurality of broken pieces 8, and realizing the transmission cooperation between the broken piece 8 and the cavity shaft 7 through the transmission groove 9 and the plug-type transmission block 10, when a local broken piece 8 is stuck, the broken piece 8 and the cavity shaft 7 can still rotate, avoiding power breakdown while enabling the crushing function of the broken piece 8 to proceed normally.

[0045] To solve the problem of jam perception; as Figure 4 As shown, a pressure gauge 13 is connected and communicated with the outer wall of the cavity shaft 7. The pressure gauge 13 is wireless, and a communication unit is built in the pressure gauge 13.

[0046] In this device, on the basis of setting the cavity shaft 7 as a cavity structure, when a local jam occurs in the broken piece 8, the plug-type transmission block 10 will continuously slide back and forth along the radial direction of the cavity shaft 7, so that the air pressure in the cavity shaft 7 fluctuates. After the pressure gauge 13 senses the air pressure fluctuation, it will transmit it outward through the communication unit, so as to remind the staff to perceive and maintain in time.

[0047] To solve the self-power supply problem; as Figure 4As shown, a generator stator winding 14 is fixed to the end of the cavity shaft 7. A generator rotor core 15 is fitted inside the generator stator winding 14. The generator rotor core 15 is fixed to the housing 1 by a bracket 16. The output terminal of the generator stator winding 14 is electrically connected to the input terminal of the pressure gauge 13.

[0048] When the cavity shaft 7 rotates, it can also drive the generator stator winding 14 to rotate synchronously, so that the generator stator winding 14 generates an induced electromotive force by electromagnetic induction, and the pressure gauge 13 is self-powered by using the induced electromotive force.

[0049] In this device, on the basis of setting the pressure gauge 13 as wireless, a generator stator winding 14 and a generator rotor core 15 are added, so as to realize self-power supply by electromagnetic induction, solve the problem of wire harness entanglement, and at the same time, the opening and closing of the pressure gauge 13 can be synchronized with the opening and closing of the whole device without additional control.

[0050] To solve the crushing effect problem; as Figure 5 shown, the crushing piece 8 consists of a toothed piece 17 and a smooth piece 18. The toothed pieces 17 and the smooth pieces 18 are arranged alternately, and one group of toothed pieces 17 is fitted on the outer wall of the other group of smooth pieces 18.

[0051] The diameter of the smooth piece 18 is smaller than that of the toothed piece 17.

[0052] In this device, by setting the crushing piece 8 as the alternately arranged toothed pieces 17 and smooth pieces 18, and the diameters of the toothed pieces 17 and the smooth pieces 18 are different, the outer contour of the whole toothed roll 6 is "serrated" along the axial direction, so that the toothed pieces 17 and the smooth pieces 18 can cooperate, and the extrusion and shearing functions can be realized between adjacent toothed pieces 17 and smooth pieces 18, increasing the crushing effect.

[0053] To solve the screening problem; as Figure 6 shown, a screen piece 21 is arranged on the inner wall of the housing 1 at the bottom of the toothed roll 6.

[0054] The screen piece 21 is arranged obliquely. The upper end of the screen piece 21 is rotatably connected to the inner wall of the housing 1. A screen opening 23 is provided at the position of the housing 1 below the inclined part of the screen piece 21. The lower end of the screen piece 21 is connected to the screen opening 23 through a film 22.

[0055] The rotation connection part of the screen piece 21 and the housing 1 extends to the outer wall of the housing 1 and is fixed with a swing arm 20. The other end of the swing arm 20 is rotatably connected with a connecting rod 19. The other end of the connecting rod 19 is rotatably connected to the eccentric part of the cavity shaft 7.

[0056] The broken bottle chips will fall above the sieve plate 21. At the same time, when the cavity shaft 7 rotates during crushing, it will drive the connecting rod 19 to move, causing the swing arm 20 to rotate reciprocally, thereby making the sieve plate 21 vibrate up and down. The bottle chips that fall above the sieve plate 21 are screened by the vibration of the sieve plate 21. The bottle chips that meet the load requirement size continue to fall downward through the sieve plate 21, and the large-size bottle chips are discharged to the sieve opening 23 along the surface of the sieve plate 21.

[0057] In this device, by setting the sieve plate 21, it can screen the broken bottle chips. At the same time, by setting the connecting rod 19 and the swing arm 20, it can drive the sieve plate 21 to vibrate up and down, increasing the screening effect. In addition, the power of the cavity shaft 7 and the swing arm 20 comes from the rotation of the cavity shaft 7. While achieving power integration, it can also make the crushing speed and the screening speed match each other.

[0058] To solve the problem of re-crushing, as Figure 7 shown, a reflux lifting mechanism 3 is provided on one side of the housing 1. The reflux lifting mechanism 3 includes a housing 2 31 fixed to the side wall of the housing 1 and a lifting roller 30 rotatably connected to the inner walls of the top and bottom of the housing 2 31 through roller shafts 29 respectively. The outer wall of the lifting roller 30 is fitted with a conveyor belt 28, and a plurality of evenly distributed material receiving hoppers 27 are provided on the outer wall of the conveyor belt 28.

[0059] The housing 2 31 is provided with a feed inlet 26 communicating with the sieve opening 23 on the side near the sieve opening 23, and a discharge opening 32 facing downward is provided above the housing 2 31. The discharge opening 32 is located above the feed hopper 2.

[0060] When the large-size bottle chips are discharged through the sieve opening 23, they will enter the inner wall of the housing 2 31 through the feed inlet 26. Then, when the roller shaft 29 drives the lifting roller 30 to rotate, it can drive the conveyor belt 28 and the material receiving hoppers 27 to move. When the material receiving hopper 27 moves to the bottom, it scoops up the bottle chips piled up at the bottom of the housing 2 31 and transports them to the top. When the opening of the material receiving hopper 27 is reversed, the bottle chips fall to the discharge opening 32 and then fall into the feed hopper 2 through the discharge opening 32.

[0061] In this device, by setting the reflux lifting mechanism 3, it can lift the large-size bottle chips that are screened again and put them into the feed hopper 2, so as to achieve secondary crushing, and ensure that all bottle chips can be crushed to the required size before discharging, increasing the bottle chip crushing effect.

[0062] In the use of this embodiment, the comprehensive drive mechanism 5 can drive the two cavity shafts 7 to rotate in the same speed and opposite directions, so that the two groups of crushing pieces 8 rotate in the same speed and opposite directions. At this time, the PET bottle is put into the top of the feed hopper 2, and then the bottle pieces fall by gravity between the two crushing pieces 8. The rotation of the crushing pieces 8 is used to extrude and shear the PET bottle for crushing. The crushed PET bottle pieces are then discharged from the discharge hopper 4. And during this process, if a local crushing piece 8 is stuck, at this time, since the cavity shaft 7 and the crushing piece 8 are driven by the transmission groove 9 and the plug-type transmission block 10, when the crushing piece 8 is stuck, the mating surface of the transmission groove 9 and the plug-type transmission block 10 will have a component force along the radial direction of the cavity shaft 7, so that the plug-type transmission block 10 contracts against the elastic force of the elastic body 11, causing the stuck crushing piece 8 to be separated from the cavity shaft 7 for transmission. When the cavity shaft 7 rotates, it can also drive the generator stator winding 14 to rotate synchronously, so that the generator stator winding 14 generates an induced electromotive force by electromagnetic induction, and the induced electromotive force is used to self-power the pressure gauge 13. Since the local jamming of the crushing piece 8 will cause the plug-type transmission block 10 to continuously slide back and forth along the radial direction of the cavity shaft 7, the air pressure in the cavity shaft 7 will fluctuate. After the pressure gauge 13 senses the air pressure fluctuation, it will transmit it outward through the communication unit, so as to remind the staff to sense and maintain in time. At the same time, when the cavity shaft 7 rotates during crushing, it will drive the connecting rod 19 to move, so that the swing arm 20 reciprocates and rotates, so that the sieve plate 21 vibrates up and down. The bottle pieces falling above the sieve plate 21 are screened by the vibration of the sieve plate 21. The bottle pieces meeting the load requirement size continue to fall downward through the sieve plate 21, and the large-size bottle pieces are discharged along the surface of the sieve plate 21 to the sieve opening 23. When the large-size bottle pieces are discharged through the sieve opening 23, they will enter the inner wall of the housing two 31 through the feed port 26. Then, when the roller shaft 29 drives the lifting roller 30 to rotate, it can drive the conveyor belt 28 and the material receiving hopper 27 to move. When the material receiving hopper 27 moves to the bottom, it scoops up the bottle pieces accumulated at the bottom of the housing two 31, conveys them to the top, and after the opening of the material receiving hopper 27 is reversed, the bottle pieces fall to the discharge port 32 and are discharged through the discharge port 32 into the feed hopper 2.

[0063] Embodiment 2:

[0064] An anti-jamming PET bottle piece crushing device, as Figure 7 shown. To solve the driving problem; the following improvements are made on the basis of Embodiment 1: The comprehensive drive mechanism 5 includes a motor 24 and a synchronous belt 25. The motor 24 is fixed to the side wall of the housing one 1 by bolts, and the synchronous belt 25 is in transmission cooperation with the outer walls of the cavity shaft 7 and the roller shaft 29.

[0065] In the use of this embodiment, when the motor 24 is started, it can drive the roller shaft 29 and the cavity shaft 7 to rotate synchronously through the synchronous belt 25.

[0066] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A PET bottle flake crushing device for preventing jamming, comprising a housing (1), a feed hopper (2) fixed to the top of the housing (1) and connected to the housing (1), and a discharge hopper (4) fixed to the bottom of the housing (1) and connected to the housing (1), characterized in that: Two toothed rollers (6) that cooperate with each other are arranged inside the shell one (1), and the toothed roller (6) comprises a cavity shaft (7) rotatably connected to the inner wall of the shell one (1) and a plurality of crushing pieces (8) transmission-connected to the outer wall of the cavity shaft (7); The inner wall of the crushing piece (8) is provided with a plurality of transmission grooves (9), the radial sliding connection of the cavity shaft (7) is provided with a plurality of plug-type transmission blocks (10) matched with the transmission grooves (9), and the matching cross-section of the transmission grooves (9) and the plug-type transmission blocks (10) is in a "V" shape, a core shaft (12) is fixed to the inner wall at the axis of the cavity shaft (7), and the inner side wall of the plug-type transmission block (10) is connected to the side wall of the core shaft (12) through an elastic body (11); The side wall of the housing 1 (1) is provided with a comprehensive driving mechanism (5) for driving the cavity shafts (7) to rotate. The comprehensive driving mechanism (5) drives the two cavity shafts (7) at the same speed but in opposite directions.

2. The anti-jamming PET bottle flake crushing device according to claim 1, characterized in that: The outer wall of the cavity shaft (7) is connected to and communicates with a pressure gauge (13), the pressure gauge (13) is a wireless type, and the pressure gauge (13) has a built-in communication unit.

3. The anti-jamming PET bottle flake crushing device according to claim 2, characterized in that: A generator stator winding (14) is fixed to the end of the cavity shaft (7), a generator rotor core (15) is fitted inside the generator stator winding (14), the generator rotor core (15) is fixed to the housing (1) via a bracket (16), and the output end of the generator stator winding (14) is electrically connected to the input terminal of the barometer (13).

4. The anti-jamming PET bottle flake crushing device according to claim 1, characterized in that: The crushing piece (8) comprises tooth pieces (17) and light pieces (18); the tooth pieces (17) and light pieces (18) are arranged alternately, and one group of tooth pieces (17) is matched with the outer wall of another group of light pieces (18).

5. The anti-jamming PET bottle flake crushing device according to claim 4, characterized in that: The diameter of the optical sheet (18) is smaller than the diameter of the tooth sheet (17).

6. The anti-jamming PET bottle flake crushing device according to claim 1, characterized in that: A screen (21) is provided on the inner wall of the shell one (1) at the bottom of the toothed roller (6); the screen (21) is arranged in an inclined manner; one end of the screen (21) above the inclination is rotatably connected to the inner wall of the shell one (1); a screen opening (23) is provided on the shell one (1) at a position below the inclination of the screen (21); one end of the screen (21) below the inclination is connected to the screen opening (23) via a film (22).

7. The anti-jamming PET bottle flake crushing device according to claim 6, characterized in that: A swing arm (20) is fixed to the rotational connection between the screen plate (21) and the shell one (1) after extending to the outer wall of the shell one (1), and the other end of the swing arm (20) is rotationally connected to a connecting rod (19), and the other end of the connecting rod (19) is rotationally connected to the eccentric position of the cavity shaft (7).

8. The anti-jamming PET bottle flake crushing device according to claim 6, characterized in that: A reflux lifting mechanism (3) is provided on one side of the shell one (1), and the reflux lifting mechanism (3) comprises a shell two (31) fixed to the side wall of the shell one (1) and a lifting roller (30) rotatably connected to the top and bottom inner walls of the shell two (31) through a roller shaft (29), the outer wall of the lifting roller (30) is matched with a conveyor belt (28), and the outer wall of the conveyor belt (28) is provided with a plurality of uniform material hoppers (27).

9. The anti-jamming PET bottle flake crushing device according to claim 8, characterized in that: The side of the second shell (31) located at the sieve opening (23) is provided with a feed opening (26) connected to the sieve opening (23), and the upper part of the second shell (31) is provided with a downward discharge opening (32), and the discharge opening (32) is located above the feed hopper (2).

10. The anti-jamming PET bottle flake crushing device according to claim 9, characterized in that: The integrated driving mechanism (5) comprises an electric motor (24) and a synchronous belt (25), wherein the electric motor (24) is fixed to the side wall of the housing (1) by means of bolts, and the synchronous belt (25) is transmission-matched with the outer wall of the cavity shaft (7) and the roller shaft (29).

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