Crushing device of PET bottle recovery system

Abstract

The invention relates to the technical field of plastic smashing, in particular to a smashing device of a PET bottle recycling system.The smashing device comprises a smashing machine body, a driving assembly and a feeding assembly, a screen is arranged at the lower end of the smashing machine body, an adjusting plate is arranged at the lower end of the screen, and a material collecting frame is further arranged at the lower end of the smashing machine body; an auxiliary assembly is further arranged on the pulverizer body, the adjusting plate is arranged at the lower end of the screen in a sliding mode, a hole matched with the screen is formed in the adjusting plate, a ring sleeve rotates through rotation of a rotating rod under cooperation of a driving wheel, a driven wheel, a driving belt and other components, then a protruding block is matched with a matching block and a lifting rod when rotating, and the lifting rod is driven to rotate. Under the assistance of damping springs, an adjusting plate moves in a reciprocating mode to clean a screen, a lifting rod descends to press one end of a material collecting frame downwards, under the assistance of second springs, the material collecting frame shakes, materials in the material collecting frame are made to be smooth, PET bottle powder is better collected, and cost is saved.

Description

Technical Field

[0001] This invention relates to the technical field of plastic crushing, and in particular to a crushing device for a PET bottle recycling system. Background Technology

[0002] Plastic bottles are primarily made from materials such as polyethylene or polypropylene with the addition of various organic solvents. They are commonly made from polyester, polyethylene, or polypropylene as raw materials, with the addition of appropriate organic solvents. After being heated at high temperatures, they are molded using plastic molds through blow molding, extrusion blow molding, or injection molding to create plastic containers. They are mainly used for beverages, food, pickles, honey, dried fruit, edible oil, and agricultural and veterinary drugs—disposable plastic packaging containers for liquids or solids. Plastic bottles are characterized by their resistance to breakage, low cost, high transparency, and food-grade materials, thus requiring the crushing and recycling of waste plastic bottles.

[0003] A PET plastic bottle crushing and processing device according to Chinese patent application number CN202410891119.6 includes a support frame, a protective shell fixedly connected to the inner cavity of the support frame, a crushing group provided in the inner cavity of the protective shell, a motor fixedly connected to the middle of the front end of the protective shell, a hydraulic cylinder fixedly connected to the upper left end of the protective shell, a feeding group fixedly connected to the left side of the hydraulic cylinder, and a support group fixedly connected to the lower part of the hydraulic cylinder.

[0004] During equipment use, the screen is easily clogged by PET bottle powder, which affects the feeding of PET bottle powder that meets the standards. Furthermore, the PET bottle powder falling into the collection frame tends to accumulate in the middle, forming a cone shape, which is not conducive to the collection of PET bottle powder by the collection frame and will result in a reduction in the amount of PET bottle powder collected in the collection frame. The conventional solution is to manually shake the collection frame to solve the problem, but this will increase the amount of operation. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a crushing device for a PET bottle recycling system.

[0006] The present invention discloses a crushing device for a PET bottle recycling system, comprising a crusher body, a drive assembly, and a feeding assembly. A screen is provided at the lower end of the crusher body, an adjusting plate is provided at the lower end of the screen, a material collection frame is also provided at the lower end of the crusher body, and an auxiliary assembly is also provided on the crusher body. The adjusting plate is slidably disposed at the lower end of the screen, and the adjusting plate is provided with holes that match the screen. The adjusting plate is used for intermittent adjustment and cleaning of the screen. The material collection frame is used to collect crushed PET plastic. Auxiliary components are used to assist in the operation of the regulating plate and the material collection frame.

[0007] Preferably, the main body of the crusher includes a mounting support frame, the upper end of which is provided with a main crusher chamber, and the upper and lower ends of the main crusher chamber are provided with openings, the feeding assembly is provided at the upper end of the main crusher chamber, and the screen is provided at the lower end of the main crusher chamber.

[0008] Preferably, a rotating rod is rotatably installed inside the main chamber of the crusher, and multiple mounting discs are installed on the rotating rod. Crushing blades are installed on the outer side of the multiple mounting discs. Two auxiliary blades are also installed inside the main chamber of the crusher. The auxiliary blades are fixed to the screen by the same set of bolts and nuts, and the crushing blades cooperate with the auxiliary blades.

[0009] Preferably, the feeding assembly includes a feeding hopper, a connecting rod is provided on one side of the feeding hopper and the main chamber of the crusher, the feeding hopper is deflected with the assistance of the connecting rod, and a locking nut is provided on the other side of the feeding hopper and the main chamber of the crusher.

[0010] Preferably, the drive assembly includes a drive motor, the output end of the drive motor is provided with a first transmission wheel, the side end of the rotating rod is provided with a second transmission wheel, a transmission belt is provided between the first transmission wheel and the second transmission wheel, the drive motor is mounted on a mounting support frame, and a protective cover is also provided on the side end of the mounting support frame, the protective cover being located outside the first transmission wheel, the second transmission wheel and the transmission belt.

[0011] Preferably, the material collection frame is located inside the mounting support frame and is located at the lower end of the screen. The mounting support frame is provided with a placement frame at the position of the material collection frame. A placement plate is provided at the upper end of the placement frame. A first spring is provided between the placement plate and the placement frame. The material collection frame is placed on the upper end of the placement plate and is detachable.

[0012] Preferably, the auxiliary components include a cylinder and a vibration motor. The cylinder is located at the lower end of the screen, and its output end is connected to an adjusting plate. The vibration motor is located at the side end of the material collection frame.

[0013] Preferably, the auxiliary component includes a transmission rod rotatably mounted on a mounting support frame. A driven wheel is provided at the side end of the transmission rod, a drive wheel is provided on the rotating rod, a drive belt is provided between the drive wheel and the driven wheel, a ring is rotatably mounted on the mounting support frame, a protrusion is provided on the outer side of the ring, a mating block matching the protrusion is provided on the adjusting plate, a first meshing tooth is provided on the inner side of the ring, and a second meshing tooth is provided on the outer side of the transmission rod. The first meshing tooth and the second meshing tooth engage for transmission.

[0014] Preferably, the mounting support frame has a horizontal plate at the lower end of the ring sleeve, a lifting rod is slidably mounted on the horizontal plate, a pressure plate is mounted at the lower end of the lifting rod, and a second spring is mounted between the pressure plate and the horizontal plate.

[0015] Preferably, a damping spring is provided at the lower end of the screen away from the mating block, one side of the damping spring is connected to the adjusting plate, and the other side of the damping spring is connected to the screen.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting auxiliary components, the first solution uses a cylinder and a vibration motor in the auxiliary components. The cylinder realizes the reciprocating drive of the adjustment plate, thereby enabling the adjustment plate to clean the screen. The vibration motor realizes the vibration of the collection frame, making the material in the collection frame flat and better collecting PET bottle powder. The second solution uses the rotation of the rotating rod, which, with the cooperation of the drive wheel, driven wheel, and drive belt, makes the ring rotate. Then, when the protrusion rotates, it cooperates with the mating block and the lifting rod. With the assistance of the damping spring, the adjustment plate moves back and forth to clean the screen. The lifting rod descends, pressing down one end of the collection frame. With the assistance of the second spring, the collection frame shakes, making the material in the collection frame flat and better collecting PET bottle powder, and saving costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 4 This is a structural schematic diagram of the main chamber and screen of the crusher of the present invention; Figure 5 This is the invention Figure 4 A magnified schematic diagram of the local structure at point A; Figure 6 This is the invention Figure 4 Enlarged structural diagram at point B; Figure 7 This is a schematic diagram of the structure of the shredder and auxiliary blade of the present invention; Figure 8 This is the invention Figure 7 A magnified schematic diagram of the local structure at point C; Figure 9 This is a structural schematic diagram of the ring and protrusion components of the present invention; Figure 10 This is a schematic diagram of the structure of the mating block and damping spring of the present invention.

[0018] Reference numerals: 1. Crusher body; 2. Drive assembly; 3. Feeding assembly; 4. Screen; 5. Adjusting plate; 6. Collection frame; 7. Auxiliary assembly; 101. Mounting support frame; 102. Crusher main chamber; 103. Rotating rod; 104. Mounting plate; 105. Crusher blade; 106. Auxiliary blade; 107. Placement frame; 108. Placement plate; 109. First spring; 201. Drive motor; 202. First transmission wheel; 203. Second transmission wheel; 204. 1. Transmission belt; 205. Protective cover; 301. Feed hopper; 302. Connecting rod; 303. Locking nut; 701. Cylinder; 702. Transmission rod; 703. Driven wheel; 704. Drive wheel; 705. Drive belt; 706. Ring sleeve; 707. Protrusion; 708. Mating block; 709. First meshing tooth; 710. Second meshing tooth; 711. Horizontal plate; 712. Lifting rod; 713. Pressure plate; 714. Second spring; 715. Damping spring. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0020] Example 1 like Figures 1 to 2 As shown, this invention discloses a crushing device for a PET bottle recycling system, including a crusher body 1, a drive assembly 2, and a feeding assembly 3. A screen 4 is provided at the lower end of the crusher body 1, and a collection frame 6 is also provided at the lower end of the crusher body 1. The collection frame 6 is used to collect the crushed PET plastic. With the assistance of the drive assembly 2, the crusher body 1 is operated. The coarsely crushed PET bottles enter the crusher body 1 with the assistance of the feeding assembly 3. The crusher body 1 further crushes the coarsely crushed PET bottles. The crushed PET bottle fragments fall into the collection frame 6 after being screened by the screen 4. After the PET bottle powder in the collection frame 6 accumulates to a designated position, the collection frame 6 is removed, and the fragments in the collection frame 6 are poured into a designated position for further processing.

[0021] The main body 1 of the crusher includes a mounting support frame 101. The upper end of the mounting support frame 101 is provided with the main crusher chamber 102. The main crusher chamber 102 has openings at both the upper and lower ends. The feeding component 3 is located at the upper end of the main crusher chamber 102, and the screen 4 is located at the lower end of the main crusher chamber 102. The mounting support frame 101 supports the entire equipment. The coarsely crushed PET bottles will be crushed in the main crusher chamber 102. PET bottle powder particles that meet the requirements of the screen 4 will pass through the screen 4, while PET bottle powder that does not meet the requirements will continue to be crushed and processed in the main crusher chamber 102.

[0022] A rotating rod 103 is rotatably mounted inside the main chamber 102 of the crusher. Multiple mounting plates 104 are mounted on the rotating rod 103, and crushing blades 105 are mounted on the outer side of the mounting plates 104. Two auxiliary blades 106 are also mounted inside the main chamber 102 of the crusher. The auxiliary blades 106 are fixed to the screen 4 by the same set of bolts and nuts. The crushing blades 105 cooperate with the auxiliary blades 106. When the rotating rod 103 rotates, it drives the crushing blades 105 to rotate with the assistance of the mounting plates 104. During the rotation, the crushing blades 105 cooperate with the auxiliary blades 106 to crush the coarsely crushed PET bottles. The distance between the crushing blades 105 and the auxiliary blades 106 can be adjusted to control the particle size of the crushed PET bottles. The smaller the distance between the crushing blades 105 and the auxiliary blades 106, the smaller the particle size of the crushed PET bottles. The larger the distance between the crushing blades 105 and the auxiliary blades 106, the larger the particle size of the crushed PET bottles.

[0023] The drive assembly 2 includes a drive motor 201. The output end of the drive motor 201 is provided with a first transmission wheel 202, and the side end of the rotating rod 103 is provided with a second transmission wheel 203. A transmission belt 204 is provided between the first transmission wheel 202 and the second transmission wheel 203. The drive motor 201 is mounted on a mounting support frame 101. A protective cover 205 is also provided on the side end of the mounting support frame 101. The protective cover 205 is located outside the first transmission wheel 202, the second transmission wheel 203 and the transmission belt 204. After the drive motor 201 is started, the output end of the drive motor 201 drives the first transmission wheel 202 to rotate. The rotation of the first transmission wheel 202 drives the rotation of the second transmission wheel 203 through the assistance of the transmission belt 204. The rotation of the second transmission wheel 203 drives the rotation of the rotating rod 103, thereby causing the crusher body 1 to operate for crushing processing.

[0024] The feeding assembly 3 includes a feeding hopper 301. A connecting rod 302 is provided on one side of the feeding hopper 301 and the main chamber 102 of the crusher. The feeding hopper 301 is deflected with the assistance of the connecting rod 302. A locking nut 303 is provided on the other side of the feeding hopper 301 and the main chamber 102 of the crusher. During the equipment installation process, the feeding hopper 301 is deflected and locked onto the main chamber 102 of the crusher. Then, the locking nut 303 is used to lock the feeding hopper 301. The PET bottle powder after coarse crushing enters the main chamber 102 of the crusher through the feeding hopper 301. When the internal parts of the main chamber 102 of the crusher need maintenance, the locking nut 303 can be used to release the locking of the feeding hopper 301. Then, the internal parts of the main chamber 102 of the crusher can be easily maintained through the opening at the top of the main chamber 102, which improves the convenience of equipment use.

[0025] The collection frame 6 is located inside the mounting support frame 101 and is located at the lower end of the screen 4. The PET bottle powder that has been screened by the screen 4 will fall into the collection frame 6 for collection. After the PET bottle powder in the collection frame 6 has been collected, the collection frame 6 will be removed and replaced.

[0026] During use, the device is started, causing the drive motor 201 to run. After the drive motor 201 starts, its output drives the first transmission wheel 202 to rotate. The rotation of the first transmission wheel 202 drives the second transmission wheel 203 to rotate through the transmission belt 204. The rotation of the second transmission wheel 203 drives the rotating rod 103 to rotate. When the rotating rod 103 rotates, it drives the crushing blade 105 to rotate through the mounting plate 104.

[0027] After the equipment is running stably, the coarsely crushed PET bottles are fed into the main chamber 102 of the crusher through the auxiliary feed hopper 301. As the crushing blade 105 rotates, the crushing blade 105 and the auxiliary blade 106 work together to crush the coarsely crushed PET bottles. During the crushing process, the PET bottle powder sieved by the screen 4 will fall into the collection frame 6 for collection. After the PET bottle powder in the collection frame 6 accumulates to the designated position, the collection frame 6 is removed, and then the powder in the collection frame 6 is poured into the designated position for the next step of processing.

[0028] Example 2 In the pulverizing device of the PET bottle recycling system based on the above embodiment 1, the screen 4 is easily clogged by PET bottle powder during use, which affects the feeding of pulverized PET bottle powder that meets the standards. Furthermore, the PET bottle powder falling into the collection frame 6 tends to accumulate in the middle, forming a cone shape, which is not conducive to the collection of PET bottle powder by the collection frame 6, resulting in a reduction in the amount of PET bottle powder collected in the collection frame 6. The conventional solution is to manually shake the collection frame 6 to solve this problem, but this increases the amount of operation. In order to solve the above problems, the following technical solution is proposed: like Figure 3 and Figure 7 As shown, an adjusting plate 5 is provided at the lower end of the screen 4, and an auxiliary component 7 is also provided on the main body 1 of the crusher. The adjusting plate 5 is slidably disposed at the lower end of the screen 4. The adjusting plate 5 is provided with holes that match the screen 4. The adjusting plate 5 is used to intermittently adjust and clean the screen 4. The auxiliary component 7 is used to assist the operation of the adjusting plate 5 and the collecting frame 6. In the initial state, the holes on the adjusting plate 5 coincide with the holes on the screen 4, which does not affect the screening of the screen 4.

[0029] The mounting support frame 101 has a placement frame 107 at the position of the collection frame 6. The placement frame 107 has a placement plate 108 at its upper end. A first spring 109 is provided between the placement plate 108 and the placement frame 107. The collection frame 6 is placed on the upper end of the placement plate 108. The collection frame 6 is detachable. During the placement of the collection frame 6, the first spring 109 causes the collection frame 6 to shake, which improves the convenience of using the equipment.

[0030] The auxiliary component 7 includes a cylinder 701 and a vibration motor. The cylinder 701 is located at the lower end of the screen 4, and its output end is connected to the adjusting plate 5. The vibration motor is located at the side of the collection frame 6. After the cylinder 701 is started, its output end will drive the adjusting plate 5 to move. The movement of the adjusting plate 5 will create misalignment between it and the holes of the screen 4, thereby clearing the blockage in the holes of the screen 4. Furthermore, the adjusting plate 5 is moved back and forth by the control of the cylinder 701 to achieve a better cleaning effect on the screen 4. It should be noted that the diameter of the holes in the adjusting plate 5 is larger than the diameter of the holes in the screen 4. When the vibration motor is running, it will vibrate, which will cause the collection frame 6 to vibrate. During the vibration process, the material in the collection frame 6 is flattened and the loose material is compacted, allowing the collection frame 6 to better collect PET bottle powder.

[0031] During the use of this invention, as the main body 1 of the crusher continues to operate, the risk of clogging of the screen 4 will gradually increase. Therefore, the cylinder 701 and the vibrating motor are operated by periodic control. The cylinder 701 operates in a reciprocating motion. The output end of the cylinder 701 will drive the adjusting plate 5 to move back and forth. During the reciprocating motion of the adjusting plate 5, the screen 4 will be cleaned. When the vibrating motor is running, it will generate vibration, which will cause the collection frame 6 to vibrate. During the vibration of the collection frame 6, it is beneficial to flatten the material in the collection frame 6 and compact the loose material, so that the collection frame 6 can better collect PET bottle powder.

[0032] Example 3 Based on the PET bottle recycling system crushing device of Embodiment 2 above, the screen 4 is blocked and the material collection frame 6 cannot collect materials well by means of cylinder 701 and vibration motor. However, the installation of cylinder 701 and vibration motor will increase the cost of the equipment and require program control, which increases the investment in the equipment. In order to save costs, the following technical solution is proposed: like Figures 1 to 10As shown, the auxiliary component 7 of Embodiment 2 is replaced. The auxiliary component 7 includes a transmission rod 702, which is rotatably mounted on the mounting support frame 101. A driven wheel 703 is provided on the side end of the transmission rod 702. A drive wheel 704 is provided on the rotating rod 103. A drive belt 705 is provided between the drive wheel 704 and the driven wheel 703. A ring sleeve 706 is rotatably mounted on the mounting support frame 101. A protrusion 707 is provided on the outer side of the ring sleeve 706. A mating block 708 matching the protrusion 707 is provided on the adjusting plate 5. A first meshing tooth 709 is provided on the inner side of the ring sleeve 706. A first meshing tooth 709 is provided on the outer side of the transmission rod 702. The second meshing tooth 710 and the first meshing tooth 709 mesh with the second meshing tooth 710 for transmission. When the rotating rod 103 rotates, the rotating rod 103 will drive the drive wheel 704 to rotate. The rotation of the drive wheel 704 will drive the driven wheel 703 to rotate through the drive belt 705. When the driven wheel 703 rotates, it will drive the transmission rod 702 to rotate. The rotation of the transmission rod 702 will drive the ring sleeve 706 to rotate through the cooperation of the first meshing tooth 709 and the second meshing tooth 710. When the ring sleeve 706 rotates, the adjusting plate 5 will move with the assistance of the protrusion 707 and the mating block 708, thereby enabling the adjusting plate 5 to clean the screen 4.

[0033] A damping spring 715 is provided at the lower end of the screen 4 away from the mating block 708. One side of the damping spring 715 is connected to the adjusting plate 5, and the other side of the damping spring 715 is connected to the screen 4. When the protrusion 707 and the mating block 708 are not in contact, the damping spring 715 will cause the adjusting plate 5 to reset.

[0034] The mounting support frame 101 has a horizontal plate 711 at the corresponding position at the lower end of the ring 706. A lifting rod 712 is slidably mounted on the horizontal plate 711. A pressure plate 713 is mounted at the lower end of the lifting rod 712. A second spring 714 is mounted between the pressure plate 713 and the horizontal plate 711. When the ring 706 rotates, the protrusion 707 will contact the top of the lifting rod 712, thereby causing the lifting rod 712 to rise and fall with the assistance of the second spring 714. The rising and falling of the lifting rod 712 presses down on one end of the collection frame 6 with the assistance of the pressure plate 713. The collection frame 6 shakes with the assistance of the first spring 109, which helps to flatten the material in the collection frame 6 and compact the loose material, so that the collection frame 6 can better collect PET bottle powder.

[0035] During use, when the rotating rod 103 rotates, it drives the drive wheel 704 to rotate. The rotation of the drive wheel 704, assisted by the drive belt 705, drives the driven wheel 703 to rotate. The rotation of the driven wheel 703 drives the transmission rod 702 to rotate. The rotation of the transmission rod 702, through the engagement of the first meshing tooth 709 and the second meshing tooth 710, drives the ring sleeve 706 to rotate. When the ring sleeve 706 rotates, the adjustment plate 5 moves with the assistance of the protrusion 707 and the mating block 708, thereby enabling the adjustment plate 5 to clean the screen 4. When the protrusion 707 and the mating block 708 are not in contact, the damping spring 715 will reset the adjustment plate 5.

[0036] When the protrusion 707 rotates with the ring 706, the protrusion 707 will contact the top of the lifting rod 712, which will then cause the lifting rod 712 to rise and fall with the assistance of the second spring 714. The rising and falling of the lifting rod 712 will press down on one end of the collection frame 6 with the assistance of the pressure plate 713. The collection frame 6 will shake with the assistance of the first spring 109, which will help to flatten the material in the collection frame 6 and compact the loose material, so that the collection frame 6 can better collect PET bottle powder.

[0037] The main functions achieved by this invention are as follows: In the first scheme, the cylinder 701 and vibrating motor in the auxiliary component 7 drive the adjusting plate 5 reciprocally, thereby enabling the adjusting plate 5 to clean the screen 4. The vibrating motor vibrates the collecting frame 6, making the material inside the collecting frame 6 flat and better collecting PET bottle powder. In the second scheme, the rotation of the rotating rod 103, in conjunction with the drive wheel 704, driven wheel 703, and drive belt 705, causes the ring 706 to rotate. This causes the protrusion 707 to rotate and engage with the mating block 708 and lifting rod 712. With the assistance of the damping spring 715, the adjusting plate 5 reciprocates to clean the screen 4. The lifting rod 712 descends, pressing down one end of the collecting frame 6. With the assistance of the second spring 714, the collecting frame 6 shakes, making the material inside the collecting frame 6 flat and better collecting PET bottle powder, while also saving costs.

[0038] The crushing device of the PET bottle recycling system of the present invention can be installed, connected or set up in a common mechanical way, and can be implemented as long as it can achieve its beneficial effect.

[0039] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A crushing device for a PET bottle recycling system, comprising a crusher body (1), a drive assembly (2), and a feeding assembly (3), characterized in that, The crusher body (1) is provided with a screen (4) at the lower end, and an adjusting plate (5) is provided at the lower end of the screen (4). The crusher body (1) is also provided with a material collection frame (6) at the lower end, and an auxiliary component (7) is also provided on the crusher body (1). The adjusting plate (5) is slidably disposed at the lower end of the screen (4), and the adjusting plate (5) is provided with holes that match the screen (4). Adjustment plate (5) is used for intermittent adjustment and cleaning of screen (4); The collection frame (6) is used to collect the crushed PET plastic; Auxiliary component (7) is used to assist the operation of the regulating plate (5) and the collection frame (6).

2. The crushing device of the PET bottle recycling system as described in claim 1, characterized in that, The main body (1) of the crusher includes a mounting support frame (101), the upper end of which is provided with a crusher main chamber (102). The upper and lower ends of the crusher main chamber (102) are provided with openings. The feeding component (3) is provided at the upper end of the crusher main chamber (102), and the screen (4) is provided at the lower end of the crusher main chamber (102).

3. The crushing device of the PET bottle recycling system as described in claim 2, characterized in that, A rotating rod (103) is rotatably installed inside the main chamber (102) of the crusher. Multiple mounting plates (104) are installed on the rotating rod (103). Crushing blades (105) are installed on the outer side of the multiple mounting plates (104). Two auxiliary blades (106) are also installed inside the main chamber (102) of the crusher. The auxiliary blades (106) are fixed to the screen (4) by the same set of bolts and nuts. The crushing blades (105) cooperate with the auxiliary blades (106).

4. The crushing device of the PET bottle recycling system as described in claim 2, characterized in that, The feeding assembly (3) includes a feeding hopper (301), a connecting rod (302) is provided on one side of the feeding hopper (301) and the main chamber (102) of the crusher, the feeding hopper (301) is deflected with the assistance of the connecting rod (302), and a locking nut (303) is provided on the other side of the feeding hopper (301) and the main chamber (102) of the crusher.

5. The crushing device of the PET bottle recycling system as described in claim 3, characterized in that, The drive assembly (2) includes a drive motor (201), the output end of the drive motor (201) is provided with a first transmission wheel (202), the side end of the rotating rod (103) is provided with a second transmission wheel (203), a transmission belt (204) is provided between the first transmission wheel (202) and the second transmission wheel (203), the drive motor (201) is mounted on the mounting support frame (101), and the side end of the mounting support frame (101) is also provided with a protective cover (205), the protective cover (205) is located outside the first transmission wheel (202), the second transmission wheel (203) and the transmission belt (204).

6. The crushing device of the PET bottle recycling system as described in claim 2, characterized in that, The collection frame (6) is located inside the mounting support frame (101) and is located at the lower end of the screen (4). The mounting support frame (101) is provided with a placement frame (107) at the position of the collection frame (6). A placement plate (108) is provided at the upper end of the placement frame (107). A first spring (109) is provided between the placement plate (108) and the placement frame (107). The collection frame (6) is placed on the upper end of the placement plate (108) and the collection frame (6) is detachable.

7. The crushing device of the PET bottle recycling system as described in claim 1, characterized in that, The auxiliary component (7) includes a cylinder (701) and a vibration motor. The cylinder (701) is located at the lower end of the screen (4). The output end of the cylinder (701) is connected to the adjustment plate (5). The vibration motor is located at the side end of the collection frame (6).

8. The crushing device of the PET bottle recycling system as described in claim 3, characterized in that, The auxiliary component (7) includes a transmission rod (702), which is rotatably mounted on a mounting support frame (101). A driven wheel (703) is provided on the side end of the transmission rod (702). A drive wheel (704) is provided on the rotating rod (103). A drive belt (705) is provided between the drive wheel (704) and the driven wheel (703). A ring sleeve (706) is rotatably mounted on the mounting support frame (101). A protrusion (707) is provided on the outer side of the ring sleeve (706). A mating block (708) matching the protrusion (707) is provided on the adjusting plate (5). A first meshing tooth (709) is provided on the inner side of the ring sleeve (706). A second meshing tooth (710) is provided on the outer side of the transmission rod (702). The first meshing tooth (709) and the second meshing tooth (710) mesh and transmit power.

9. The crushing device of the PET bottle recycling system as described in claim 8, characterized in that, The mounting support frame (101) has a horizontal plate (711) at the corresponding position at the lower end of the ring (706). A lifting rod (712) is slidably arranged on the horizontal plate (711). A pressure plate (713) is arranged at the lower end of the lifting rod (712). A second spring (714) is arranged between the pressure plate (713) and the horizontal plate (711).

10. The crushing device of the PET bottle recycling system as described in claim 8, characterized in that, A damping spring (715) is provided at the lower end of the screen (4) away from the mating block (708). One side of the damping spring (715) is connected to the adjusting plate (5), and the other side of the damping spring (715) is connected to the screen (4).

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