Waste plastic recycling device

Abstract

The invention discloses a waste plastic recycling device which comprises a support body, a first smashing cutter set and a second smashing cutter set are arranged on the support body, a cleaning assembly is arranged between the first smashing cutter set and the second smashing cutter set, and a control assembly is arranged on the first smashing cutter set. The control assembly is used for driving the cleaning assembly to move front and back and locking the cleaning assembly. According to the plastic bag crushing device, rigid plastic is crushed through the first crushing cutter set, when the rigid plastic carries a plastic bag, the plastic bag is wound around the first crushing cutter, the torque of the first crushing cutter set can be increased, the rotating speed of the first crushing cutter set can be reduced, and a cleaning assembly is inserted into a gap of the first crushing cutter set; and when the first crushing cutter set returns to the normal torque and rotating speed, the cleaning assembly is drawn out and rotates to the position above the second crushing cutter set, and the plastic bags are conveyed to the second crushing cutter set to be crushed.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of waste plastic recycling, and specifically provides a waste plastic recycling, treatment and reuse device. Background Art

[0002] Waste plastic products can usually be recycled and reused after treatment. When waste plastics are recycled, they need to go through multiple processes. Among them, after waste plastics are recycled, they first need to be broken up.

[0003] Plastic products include hard objects and soft products such as plastic bags. Usually, different crushing knives are selected according to the hardness of the plastic itself to break up waste plastics. Generally, hard plastics are crushed by low-speed, high-torque and relatively thick crushing knives, while soft products such as plastic bags usually need to be broken up by high-speed and relatively sharp crushing knives. However, there are plastic bags sleeved outside the existing hard plastics, and at this time, it is difficult to separate the plastic bags. Usually, such plastics are directly conveyed into the crushing knives for breaking up hard plastics (because the crushing knives for breaking up soft plastics have a high speed and a thin thickness, and it is extremely easy to damage the crushing knives when breaking up hard plastics). However, the low-speed, high-torque crushing knives cannot break up soft plastics, and finally the plastic bag products will be wound around the crushing knives, resulting in an increasing torque of the crushing knives and finally causing the motor to be overloaded and damaged. Summary of the Invention

[0004] The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single, and mainly provides a waste plastic recycling, treatment and reuse device to solve the technical problem that when there are plastic bag products adhered to the existing hard plastics and they are crushed by low-speed, high-torque crushing knives, it is easy to cause the plastic bags to be wound around the crushing knives and cause the motor to be overloaded as mentioned in the above background art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is as follows: A waste plastic recycling, treatment and reuse device includes a bracket body. A first crushing knife group and a second crushing knife group are arranged on the bracket body. A cleaning component for cleaning the plastic bags on the first crushing knife group is arranged between the first crushing knife group and the second crushing knife group, and the cleaning component conveys the cleaned plastic bags to the second crushing knife group. A control component for detecting the rotation speed of the first crushing knife group is arranged on the first crushing knife group, and the control component is used to drive the cleaning component to move back and forth and lock the cleaning component.

[0006] Preferably, the cleaning component includes a servo motor. The servo motor is arranged on the bracket body, and a rotating shaft is fixedly installed at the output end of the servo motor. Support plates are arranged on both sides of the rotating shaft.

[0007] Preferably, a movable plate is arranged on the support plate, a driving motor is arranged on the movable plate, a rotating rod is arranged at the output end of the driving motor, and a scraper is arranged on the rotating rod.

[0008] Preferably, a first telescopic sleeve rod is arranged on the support plate, a docking block is arranged on the extension rod of the first telescopic sleeve rod, a second telescopic sleeve rod is arranged on the support plate, and one end of the second telescopic sleeve rod is connected to the movable plate.

[0009] Preferably, the inner cavity of the first telescopic sleeve rod is connected to the inner cavity of the second telescopic sleeve rod through a connecting pipe, a damper is provided on the support plate, and the damper extension rod is connected to the movable plate.

[0010] Preferably, a blower is provided on the support plate, a support block is provided on the support plate, a lifting block is slidably connected to the support block, the blower air outlet pipe is connected to the inner cavity of the lifting block, and an air outlet is opened on the lifting block facing the scraper side.

[0011] Preferably, the control component includes a resistance block, which is slidably connected to the rotating rod of the first crushing knife group, a clamping block is provided on one side of the resistance block, a conical connecting block is provided between the clamping block and the resistance block, and the clamping block is fixedly connected to the inner wall of the bracket body, and a clamping groove is provided on the clamping block.

[0012] Preferably, a rotating block is fixedly mounted on the rotating rod of the first crushing knife assembly, a supporting block is fixedly mounted on the rotating block, a movable plate is hinged on the supporting block, a limiting rod is arranged between the movable plate and the rotating block, and a spring is sleeved on the limiting rod.

[0013] Preferably, a connecting rod is slidably connected to the movable plate, and one end of the connecting rod away from the movable plate is movably connected to the abutment block.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the first crushing knife group breaks the hard plastic, and when the hard plastic carries a plastic bag, the plastic bag is wound around the first crushing knife group, which increases the torque of the first crushing knife group and reduces the rotation speed of the first crushing knife group. The cleaning component is inserted into the gap of the first crushing knife group to clean the plastic bag wound around the first crushing knife group. When the first crushing knife group restores normal torque and rotation speed, the cleaning component is pulled out and rotated to the top of the second crushing knife group, and the plastic bag is transported to the second crushing knife group for breaking. In this way, the plastic bag wound around the first crushing knife group can be automatically cleaned and transported to the second crushing knife group for breaking, thereby preventing the plastic bag from being wound around the first crushing knife group too much and causing the motor to overload, and there is no need to stop the machine for cleaning. A control component is provided on the first crushing knife group. The control component can monitor the rotation speed of the first crushing knife group, so as to monitor whether there is a plastic bag wound around the first crushing knife group. And when there is a plastic bag wound around the first crushing knife group, the control component will drive the cleaning component to move forward and insert it at the first crushing knife group for cleaning. When the cleaning component cleans the first crushing knife group, the control component will lock the cleaning component to prevent the cleaning component from rotating and avoid the situation of the first crushing knife group hitting the knife. When the plastic bag on the first crushing knife group is cleaned, the cleaning component will be unlocked. In this way, when the crushing knife cleans the plastic, it can achieve automatic monitoring and automatic locking during cleaning, reducing the probability of failure of the crushing knife equipment.

[0015] The present invention will be explained and described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front three-dimensional structure schematic diagram of the present invention; Figure 2 is a top three-dimensional structure schematic diagram of the present invention; Figure 3 is a three-dimensional structure schematic diagram of the first crushing knife and the second crushing knife of the present invention; Figure 4 is a three-dimensional structure schematic diagram of the first crushing knife of the present invention; Figure 5 is a front three-dimensional structure schematic diagram of the cleaning component of the present invention; Figure 6 is a back three-dimensional structure schematic diagram of the cleaning component of the present invention; Figure 7 is a side three-dimensional structure schematic diagram of the cleaning component of the present invention; Figure 8 is a three-dimensional structure schematic diagram of the control component of the present invention;

[0017] 1. Bracket body; 2. First crushing knife group; 3. Second crushing knife group; 4. Support plate; 5. Rotating shaft; 6. Servo motor; 7. Rotating rod; 8. Driving motor; 9. Scraper; 10. First telescopic sleeve rod; 11. Docking block; 12. Connecting pipe; 13. Second telescopic sleeve rod; 14. Damper; 15. Moving plate; 16. Blower; 17. Support block; 18. Lifting block; 19. Contact block; 20. Clamping block; 21. Card slot; 22. Rotating block; 23. Fixed block; 24. Movable plate; 25. Limiting rod; 26. Spring; 27. Connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] Please refer to the attached Figures 1-8 A waste plastic recycling and reuse device includes a bracket body 1, on which a first crushing knife group 2 and a second crushing knife group 3 are arranged, a cleaning component for cleaning plastic bags on the first crushing knife group 2 is arranged between the first crushing knife group 2 and the second crushing knife group 3, and the cleaning component transports the cleaned plastic bags to the second crushing knife group 3, a control component for detecting the rotation speed of the first crushing knife group 2 is arranged on the first crushing knife group 2, and the control component is used to drive the cleaning component to move forward and backward and lock the cleaning component.

[0022] The specific operation process of the present invention is as follows: hard plastic is conveyed into the first crushing knife group 2 for crushing, and soft plastic bag products are conveyed into the second crushing knife group 3 for crushing. Since plastic bags may be mixed in the hard plastic, the control component will monitor the first crushing knife group 2. When there are more plastic bags wrapped around the first crushing knife group 2, the control component will drive the cleaning component to insert into the gap of the first crushing knife group 2, and the control component will lock the cleaning component at this time. At this time, the cleaning component cannot be rotated to the side of the second crushing knife group 3, and the cleaning component cleans the plastic bags wrapped around the first crushing knife group 2. When the plastic bags wrapped around the first crushing knife group 2 are almost cleaned, the control component unlocks the cleaning component and pushes the cleaning component to move back and reset. At this time, the cleaning component can be rotated to the side of the second crushing knife group 3 to convey the plastic bags in for crushing.

[0023] Please refer toFigures 3-7 , the cleaning component includes a servo motor 6, the servo motor 6 is arranged on the bracket body 1, a rotating shaft 5 is fixedly installed at the output end of the servo motor 6, support plates 4 are arranged on both sides of the rotating shaft 5, a moving plate 15 is arranged on the support plate 4, a driving motor 8 is arranged on the moving plate 15, a rotating rod 7 is arranged at the output end of the driving motor 8, a scraping plate 9 is arranged on the rotating rod 7, a first telescopic sleeve rod 10 is arranged on the support plate 4, a docking block 11 is arranged on the extending rod of the first telescopic sleeve rod 10, a second telescopic sleeve rod 13 is arranged on the support plate 4, one end of the second telescopic sleeve rod 13 is connected to the moving plate 15, the inner cavity of the first telescopic sleeve rod 10 is communicated with the inner cavity of the second telescopic sleeve rod 13 through a connecting pipe 12, a damper 14 is arranged on the support plate 4, and the extending rod of the damper 14 is connected to the moving plate 15, a blower 16 is arranged on the support plate 4, a support block 17 is arranged on the support plate 4, a lifting block 18 is slidably connected to the support block 17, the air outlet pipe of the blower 16 is communicated with the inner cavity of the lifting block 18, and an air outlet is arranged on the side of the lifting block 18 facing the scraping plate 9.

[0024] Support plates 4 are arranged on both sides of the rotating shaft 5, scraping plates 9 are arranged above one support plate 4 and below the other support plate 4, blowers 16 are arranged on the opposite sides of the scraping plates 9 of the two support plates 4. Start the servo motor 6, the servo motor 6 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the two support plates 4 to rotate for position exchange; Start the driving motor 8, the driving motor 8 drives the rotating rod 7 to rotate, the rotating rod 7 drives multiple groups of scraping plates 9 to rotate. The scraping plates 9 are integrally arranged in a windmill shape, and the rotating direction of the scraping plates 9 is opposite to the rotating direction of the crushing knives of the first crushing knife group 2. When the scraping plates 9 are inserted into the intermediate gaps of the first crushing knife group 2, the plastic bags hooked and wound on the first crushing knife group 2 are hooked away or broken and carried away by the reversely rotating scraping plates 9, realizing the cleaning of the plastic bags. When the docking block 11 is under pressure, at this time, the docking block 11 compresses the extending rod of the first telescopic sleeve rod 10. There is hydraulic oil in the sleeve rod of the first telescopic sleeve rod 10, and there is also hydraulic oil in the sleeve rod of the second telescopic sleeve rod 13. When the first telescopic sleeve rod 10 is compressed, the hydraulic oil inside the first telescopic sleeve rod 10 is transported into the inside of the second telescopic sleeve rod 13 through the connecting pipe 12. At this time, the extending rod of the second telescopic sleeve rod 13 extends to push the moving plate 15 slidingly connected to the support plate 4 to move backward, and at this time, the damper 14 is in a stretched state. When the pressure on the docking block 11 is removed, at this time, the damper 14 needs to rebound and reset. The damper 14 pulls the moving plate 15 to move forward. At this time, the second telescopic sleeve rod 13 is compressed, and the hydraulic oil inside the second telescopic sleeve rod 13 is squeezed into the inside of the first telescopic sleeve rod 10. At this time, the extending rod of the first telescopic sleeve rod 10 drives the docking block 11 to extend. Start the blower 16 on one side of the second shredding knife group 3, and the blower 16 conveys air into the lifting block 18 through the air outlet pipe, and blows air to the scraper 9 through the air outlet opened by the lifting block 18, so that the plastic bags hooked on the scraper 9 are blown into the second shredding knife group 3 for breaking. The lifting block 18 moves up and down by its own gravity. When the lifting block 18 is at the bottom, it extends out from the inside of the support block 17. When the lifting block 18 is at the top, the lifting block 18 is stored in the inside of the support block 17, and the air outlet is blocked and cannot blow air.

[0025] Please refer to Figure 8 The control component includes a resistance block 19, which is slidably connected to the rotating rod of the first crushing knife group 2. A clamping block 20 is arranged on one side of the resistance block 19, and a conical connecting block is arranged between the clamping block 20 and the resistance block 19, and the clamping block 20 is fixedly connected to the inner wall of the bracket body 1, and a clamping groove 21 is opened on the clamping block 20. A rotating block 22 is fixedly installed on the rotating rod of the first crushing knife group 2, and a fixed block 23 is fixedly installed on the rotating block 22. A movable plate 24 is hinged on the fixed block 23, and a limiting rod 25 is arranged between the movable plate 24 and the rotating block 22. A spring 26 is sleeved on the limiting rod 25, and a connecting rod 27 is slidably connected to the movable plate 24. The connecting rod 27 is movably connected to the resistance block 19 at one end away from the movable plate 24.

[0026] When the first pulverizing blade group 2 rotates, there is no plastic bag wrapped at the beginning, so the rotation speed of the first pulverizing blade group 2 is not affected. At this time, the centrifugal force generated by the rotation of the first pulverizing blade group 2 is greater than the tension of the spring 26. At this time, the movable plate 24 is thrown outward. At this time, the spring 26 is in a stretched state, and the movable plate 24 pushes the resistance block 19 outward through the connecting rod 27. At this time, the docking block 11 contacts the resistance block 19, and the docking block 11 is compressed by the resistance block 19. The conical connecting block is rotatably connected to the resistance block 19, and the conical connecting block is fixedly connected to the clamping block 20, and the clamping block 20 is fixedly connected to the bracket body 1. When the resistance block 19 is slidably connected to the rotating rod of the first pulverizing blade group 2 through the keyway, the rotating rod rotates, the resistance block 19 rotates, but the conical connecting block is fixedly connected to the clamping block 20. The clamping block 20 is fixedly connected to the bracket body 1. The conical connecting block and the card block 20 will not rotate. When a plastic bag is wound around the first crushing knife group 2, the rotation speed of the rotating rod decreases. At this time, the centrifugal force is less than the pulling force of the spring 26. At this time, the spring 26 will rebound and reset. The spring 26 pulls the movable plate 24 downward. The limiting rod 25 is a telescopic rod used to limit the downward movement of the movable plate 24, and the limiting rod 25 is slidably connected to the movable plate 24. The movable plate 24 moves downward and pulls the resistance block 19 and the card block 20 backward through the connecting rod 27. At this time, the docking block 11 will be inserted into the card slot 21 along the inclined surface of the conical connecting block. At this time, the scraper 9 is inserted into the first crushing knife group 2, and the card slot 21 cooperates with the docking block 11 to achieve locking. The servo motor 6 cannot drive the support plate 4 to rotate through the rotating shaft 5 for transposition.

[0027] The present invention has been described exemplarily with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A waste plastic recycling and reuse device, comprising a bracket body (1), wherein a first crushing knife group (2) and a second crushing knife group (3) are arranged on the bracket body (1), and the characteristics are as follows: A cleaning component for cleaning plastic bags on the first shredding knife group (2) is arranged between the first shredding knife group (2) and the second shredding knife group (3), and the cleaning component transports the cleaned plastic bags to the second shredding knife group (3). A control component for detecting the rotation speed of the first shredding knife group (2) is arranged on the first shredding knife group (2), and the control component is used to drive the cleaning component to move forward and backward and lock the cleaning component.

2. The waste plastic recycling, treatment and reuse device according to claim 1, wherein: The cleaning assembly comprises a servo motor (6), the servo motor (6) being arranged on the support body (1), a rotating shaft (5) being fixedly mounted on the output end of the servo motor (6), and support plates (4) being arranged on both sides of the rotating shaft (5).

3. The waste plastic recycling, treatment and reuse device according to claim 2, characterized in that: A moving plate (15) is arranged on the support plate (4), a driving motor (8) is arranged on the moving plate (15), a rotating rod (7) is arranged at the output end of the driving motor (8), and a scraper (9) is arranged on the rotating rod (7).

4. An apparatus for recycling and reusing waste plastics according to claim 3, characterized in that: A first telescopic sleeve rod (10) is arranged on the support plate (4), a docking block (11) is arranged on the extension rod of the first telescopic sleeve rod (10), and a second telescopic sleeve rod (13) is arranged on the support plate (4), one end of the second telescopic sleeve rod (13) is connected to the movable plate (15).

5. The waste plastic recycling, treatment and reuse device according to claim 4, characterized in that: The inner cavity of the first telescopic sleeve rod (10) is connected to the inner cavity of the second telescopic sleeve rod (13) via a connecting pipe (12); a damper (14) is provided on the support plate (4), and the extension rod of the damper (14) is connected to the movable plate (15).

6. The waste plastic recycling, treatment and reuse device according to claim 5, characterized in that: The support plate (4) is provided with a blower (16), the support plate (4) is provided with a support block (17), the support block (17) is slidably connected with a lifting block (18), the air outlet pipe of the blower (16) is connected to the inner cavity of the lifting block (18), and the lifting block (18) is provided with an air outlet on a side facing the scraper (9).

7. A waste plastic recycling, treatment and reuse device according to claim 1, characterized in that: The control assembly comprises a resistance block (19), the resistance block (19) being slidably connected to a rotating rod of the first crushing blade assembly (2), a clamping block (20) being arranged on one side of the resistance block (19), a conical connecting block being arranged between the clamping block (20) and the resistance block (19), and the clamping block (20) being fixedly connected to an inner wall of a bracket body (1), and a clamping groove (21) being arranged on the clamping block (20).

8. The waste plastic recycling, treatment and reuse device according to claim 7, wherein: A rotating block (22) is fixedly mounted on the rotating rod of the first crushing blade assembly (2), a fixed block (23) is fixedly mounted on the rotating block (22), a movable plate (24) is hingedly connected to the fixed block (23), a limiting rod (25) is arranged between the movable plate (24) and the rotating block (22), and a spring (26) is sleeved on the limiting rod (25).

9. The waste plastic recycling, treatment and reuse device according to claim 8, characterized in that: A connecting rod (27) is slidably connected to the movable plate (24), and one end of the connecting rod (27) away from the movable plate (24) is movably connected to the abutment block (19).

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