Plastic recycling device and plastic recycling method
By using a cylinder-driven pressure plate structure and a rotating meshing mechanism, the problem of plastic bags rebounding during the shredding process is solved, achieving stable biting and pulling, improving shredding efficiency, and ensuring the continuous operation of the plastic recycling device.
Patent Information
- Application Number
- CN202511184626.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2025-11-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing plastic recycling devices, the repulsive effect formed by the airflow and rotational momentum on the shredding roller surface prevents plastic bags from adhering to the shredding roller surface, resulting in a shortened effective engagement time and reduced tearing and penetration efficiency.
A plastic recycling device was designed. The device uses a cylinder to drive two pressure plates to move down synchronously, squeezing the plastic bag and preventing it from rebounding. Combined with a rotating mechanism and a meshing mechanism, the device ensures that the second pressure plate remains closed during the downward pressing phase, stably compressing the plastic bag and preventing it from rebounding. During the upward process, the second pressure plate automatically opens to provide a channel for new plastic bags to fall.
It achieves stable biting and pulling of plastic bags, prevents biting failure caused by airflow repulsion, improves shredding efficiency, and automatically circulates materials for uninterrupted feeding.
Smart Images
Figure CN121004696A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of plastic recycling, in particular to a plastic recycling and reusing device and a plastic recycling method. BACKGROUND
[0002] Plastic is a synthetic material with high molecular synthetic resin as the main component, which can be molded under certain conditions (such as heating and pressurization) and keep the shape stable at room temperature. Since plastic is mainly derived from fossil fuels, its mass production consumes valuable non-renewable resources. In order to realize the reuse of resources, some waste plastics, such as plastic bags, are collected after use and processed for recycling and reuse. This process requires a recycling device.
[0003] The existing recycling device adopts a plastic shredder composed of a cavity, a motor, a transmission belt, a shredding roller and shredding teeth when crushing the plastic. The working principle is as follows: first, start the motor. When the motor is running, the transmission belt drives the shredding roller to rotate. At this time, the plastic bag is put into the cavity. The plastic bag falls on the shredding roller under the action of gravity. The shredding roller drives the plastic bag to rotate. When the plastic bag moves, it is blocked by the fixed shredding teeth. Then it will be torn under the action of pressure. The torn plastic bag will fall through the gap between the shredding roller and the shredding teeth, thereby completing the shredding process of the plastic.
[0004] When the fluffy and light plastic bag contacts the rotating shredding roller, the air flow generated on the surface of the shredding roller and the rotational momentum will form a repulsive effect. This reverse force makes the bag body unable to adhere to the surface of the shredding roller, but instead is continuously bounced away from the shredding area in the contact moment, resulting in a shortened effective biting time and weakened tearing penetration efficiency of the plastic bag. Therefore, the present application provides a plastic recycling and reusing device and a plastic recycling method. SUMMARY
[0005] The purpose of the present application is to solve the problem of the shredding roller bouncing the plastic bag away from the shredding area in the background art, and to provide a plastic recycling and reusing device and a plastic recycling method.
[0006] In a first aspect, the present application provides a plastic recycling and reusing device, which comprises a cavity arranged at the top end of a support frame, a shredding roller rotatably connected inside the cavity and fixed with shredding teeth, an upper feeding box mounted at the top end of the cavity, a motor mounted outside the support frame, and a chain engaged with the outside of the shredding roller at the output end of the motor. A cylinder is installed at the top of the feeding box. The output end of the cylinder is connected to a pressure plate 1 that is slidably connected to the inner wall of the feeding box. A pressure plate 2 is provided on the outside of the pressure plate 1. A connecting rod is inserted into the inside of the pressure plate 1 and the pressure plate 2. The connecting rod is fixedly connected to the pressure plate 2 and rotatably connected to the pressure plate 1. A baffle is fixedly connected to the top of the pressure plate 1. Lifting plates are rotatably connected to the outside of both ends of the connecting rod. A pair of guide rods are fixedly connected to both sides of the feeding box. Both guide rods pass through the lifting plates. A ratchet gear is fixed to the outside of the connecting rod. A rotating mechanism is provided around the lifting plate to restrict the ratchet gear from rotating clockwise when the connecting rod moves down, and to release the restriction when the connecting rod returns to its original position. The spur gear is fixed to the outside of the connecting rod. The outside of the feeding box is equipped with a meshing mechanism, which is used to control the spur gear to rotate a certain number of times when the connecting rod moves upward, so that the pressure plate flips. When the connecting rod moves downward, the meshing mechanism controls the spur gear to stop rotating. The reset mechanism, used to control the return of the second pressure plate after it flips over, is located at the bottom of the second pressure plate.
[0007] Optionally, the rotating mechanism includes a first inclined block, an L-shaped rod, a connecting block, a slide groove, a first compression spring, and an inclined plate. The first inclined block is fixed to the outside of the feeding box, the L-shaped rod is fixed to the top of the connecting block, the slide groove is opened on the side of the lifting plate away from the feeding box, the connecting block is slidably connected to the inside of the slide groove, the two ends of the first compression spring are fixed between the inner wall of the connecting block and the slide groove, and the inclined plate is fixed to the side of the connecting block near the ratchet.
[0008] Optionally, the meshing mechanism includes a rack, a slide bar one, a slide bar two, a pressure bar, a wedge block two, and a wedge block three. The rack is fixedly connected to slide bar one and slide bar two. Slide bar one and slide bar two are slidably connected to the outside of the feeding box. The pressure bar is fixedly connected to the outside of the lifting plate. The wedge block two is fixedly connected to the outside of slide bar one. The wedge block three is fixedly connected to the outside of slide bar two. The pressure bar is in contact with the wedge block three.
[0009] Optionally, the reset mechanism includes an arc-shaped rod, an arc-shaped tube, and a second compression spring. The arc-shaped rod is fixed to the bottom end of the second pressure plate, the arc-shaped tube is fixed to the bottom end of the first pressure plate, the end of the arc-shaped rod away from the second pressure plate is slidably connected to the inside of the arc-shaped tube, and the two ends of the second compression spring are fixed between the inner wall of the arc-shaped tube and the arc-shaped rod.
[0010] Optionally, a compression spring 2 is fixedly connected to the top of the pressure plate 1, and the compression spring 2 is a "right-angled triangle" design.
[0011] Optionally, the outer side of the feeding box is fixedly connected with a fixed plate, one end of the fixed plate away from the feeding box is fixedly connected with a plurality of triangular blocks, the outer side of the pressing plate one is matched with a movable rod, and the outer side of the lifting plate is provided with an elastic vibration mechanism for cooperation with the plurality of triangular blocks when the lifting plate moves, so as to drive the movable rod to reciprocate and generate vibration impact on the pressing plate one.
[0012] Optionally, the elastic vibration mechanism comprises a side plate, a connecting disc, a side rod, a tension spring and a compression spring three and a fixed disc, the side plate is fixedly connected to the outer side of the lifting plate, the movable rod is slidably arranged in the side plate, the connecting disc is fixedly connected to the outer side of the movable rod, the side rod is fixedly connected to the outer side of the connecting disc, the side rod is matched with the triangular block, the tension spring is fixedly connected between the side plate and the connecting disc, the compression spring three is fixedly connected between the connecting disc and the fixed disc, the fixed disc is slidably connected to the outer side of the movable rod, and one end of the fixed disc away from the movable rod is fixedly connected with the side plate.
[0013] Optionally, the outer sides of the connecting rod and the movable rod are rotatably connected to the isolation plate, and the isolation plate is slidably connected to the inner side of the feeding box.
[0014] Optionally, the two sides of the feeding box are fixedly connected with dust covers, and the dust covers are made of polytetrafluoroethylene.
[0015] In the second aspect, the application provides a plastic recycling method applied to the plastic recycling and reusing device. S1: plastic bags are put into the inner side of the feeding box; S2: the cylinder is started, the cylinder moves to drive the pressing plate one to move downward, and the pressing plate two is simultaneously driven to move downward when the pressing plate one moves downward, so that the plastic bag is blocked by the pressing plate one and the pressing plate two.
[0016] Compared with the prior art, the application has at least one of the following beneficial technical effects: Through the structural design of the pressing plate one and the pressing plate two, the cylinder drives the pressing plate one and the pressing plate two to move downward synchronously, effectively extruding the plastic bag to accelerate the falling and prevent the occlusion failure caused by the airflow repulsion, and the extrusion effect can also promote the bag body to gather, so as to facilitate the smooth occlusion and pulling of the tearing roller.
[0017] Further through the structural design of the rotating mechanism and the meshing mechanism, the rotating mechanism realizes locking by means of the ratchet gear to ensure that the second pressing plate keeps closed in the pressing stage, thereby stabilizing the compression of the plastic bag and preventing rebounding; in the lifting process of the second pressing plate, the second pressing plate is automatically turned over and opened under the influence of the meshing mechanism, and when the ratchet gear is continuously locked by the rotating mechanism, the second pressing plate is in a continuously opened state, thereby releasing the channel for the new plastic bag to fall down; then when the second pressing plate is lifted and reset, the ratchet gear is unlocked by the rotating mechanism, the second pressing plate is reversed and closed, thereby realizing automatic circulation, continuously processing materials and continuously feeding without interruption. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of a plastic recycling device. Figure 2 It is a schematic diagram of the cross-section of the cavity and the feeding box. Figure 3 It is a schematic diagram of the structure of the dust cover. Figure 4 It is a schematic diagram of the structure of the air cylinder. Figure 5 It is a schematic diagram of the structure of the lifting plate and the guide rod. Figure 6 It is a schematic diagram of the transverse cross-section of the feeding box. Figure 7 It is a schematic diagram of the structure of the sliding rod one and the sliding rod two. Figure 8 It is a schematic diagram of the structure of the sliding rod one and the sliding rod two. Figure 7 Figure 9 It is a schematic diagram of the structure of the arc-shaped rod and the arc-shaped tube. Figure 10 It is a schematic diagram of the cross-section of the arc-shaped tube. Figure 11 It is a schematic diagram of the structure of the compression spring two. Figure 12 It is a schematic diagram of the structure of the fixed plate and the triangular block. Figure 13 It is a schematic diagram of the structure of the fixed plate and the triangular block. Figure 12 Figure 14 It is a schematic diagram of the structure of the isolation plate. Figure 15 It is a flowchart of the plastic recycling method of the present application.
[0019] 1, support frame; 2, cavity; 3, shredding roller; 4, shredding tooth; 5, feeding box; 6, motor; 7, chain; 8, air cylinder; 9, pressing plate one; 10, pressing plate two; 11, baffle; 12, connecting rod; 13, lifting plate; 14, guide rod; 15, ratchet gear; 16, spur gear; 17, inclined block one; 18, L-shaped rod; 19, connecting block; 20, sliding groove; 21, compression spring one; 22, inclined plate; 23, rack; 24, sliding rod one; 25, sliding rod two; 26, pressing rod; 27, inclined block two; 28, inclined block three; 29, arc-shaped rod; 30, arc-shaped tube; 31, compression spring two; 32, fixed plate; 33, triangular block; 34, movable rod; 35, side plate; 36, connecting disc; 37, side rod; 38, tension spring; 39, compression spring three; 40, fixed disc; 41, isolation plate; 42, dust cover. DETAILED DESCRIPTION
[0020] In order to make the inventive objectives, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.
[0022] The technical solutions of the present application will be further described below with reference to the drawings and through specific embodiments.
[0023] As Figure 1 , Figure 2 and Figure 3As shown, the plastic recycling device provided by the present application comprises a cavity 2 arranged at the top end of a support frame 1, the support frame 1 supports the cavity 2, a tearing roller 3 is rotatably connected inside the cavity 2 and is fixedly connected with tearing teeth 4, an upper feeding box 5 is installed at the top end of the cavity 2, and a motor 6 is installed outside the support frame 1. When the plastic bag is torn and shredded, first start the motor 6, the output end of the motor 6 is engaged with the outside of the tearing roller 3 through a chain 7, and the tearing roller 3 is driven to rotate by the chain 7 when the motor 6 operates. At this time, the plastic bag is put into the cavity 2 through the upper feeding box 5, and the plastic bag falls on the tearing roller 3 under the action of gravity, and the tearing roller 3 drives the plastic bag to rotate, and when the plastic bag moves, it is blocked by the fixed tearing teeth 4, and then it is torn under the action of pressure. The torn plastic bag falls through the gap between the tearing roller 3 and the tearing teeth 4, thereby completing the tearing and shredding process of the plastic.
[0024] However, when the fluffy and light plastic bag contacts the rotating tearing roller 3, the airflow generated on the surface of the tearing roller 3 and the rotational momentum will form a repulsive effect. This reverse force makes the bag body unable to adhere to the surface of the tearing roller 3, but instead is continuously bounced away from the tearing area in the instant of contact, resulting in a shortened effective engagement time and weakened tearing and penetration efficiency of the plastic bag.
[0025] In view of the above problems, as shown in Figure 4 , Figure 5 and Figure 6 , the plastic recycling device of the present embodiment further comprises a gas cylinder 8 installed at the top end of the upper feeding box 5. When a certain plastic bag is put into the upper feeding box 5, the gas cylinder 8 is started. The output end of the gas cylinder 8 is drivingly connected with a pressing plate I 9 which is slidingly connected with the inner wall of the upper feeding box 5. The gas cylinder 8 drives the pressing plate I 9 to move downward when it operates. The outer side of the pressing plate I 9 is provided with a pressing plate II 10. A connecting rod 12 is inserted into the pressing plate I 9 and the pressing plate II 10. The connecting rod 12 is fixedly connected with the pressing plate II 10 and is rotatably connected with the pressing plate I 9. When the pressing plate I 9 moves downward, it will synchronously drive the pressing plate II 10 to move downward. At this time, the pressing plate I 9 and the pressing plate II 10 will squeeze the plastic bag when they move downward, not only accelerating the falling speed of the plastic bag, but also avoiding the problem of elastic tearing of the plastic bag in the tearing area. The top end of the pressing plate I 9 is fixedly connected with a baffle 11 which can block the pressing plate II 10, ensuring that the pressing plate II 10 will not swing when it is subjected to the reaction force of the plastic bag. At this time, the pressing plate I 9 and the pressing plate II 10 squeeze the plastic bag in the upper feeding box 5 together, which is convenient for the tearing roller 3 to engage and pull the bag body. The outer sides of both ends of the connecting rod 12 are rotatably connected with a lifting plate 13. A pair of guide rods 14 are fixedly connected on both sides of the upper feeding box 5. The guide rods 14 penetrate through the lifting plate 13. The lifting plate 13 and the guide rods 14 guide the movement position of the connecting rod 12, ensuring the stability of the connecting rod 12 when it moves.
[0026] As an implementation, as shown in Figure 7 and Figure 8 , the plastic recycling device further comprises a ratchet gear 15 fixed outside the connecting rod 12, and a rotating mechanism is arranged on the periphery of the lifting plate 13. In the initial state, the rotating mechanism does not contact the ratchet gear 15, and is used to limit the clockwise rotation of the ratchet gear 15 when the connecting rod 12 moves downward, and is released when the connecting rod 12 resets. When the pressing plate 9 and the baffle 11 move downward to extrude the plastic bag, the connecting rod 12 is in a synchronous downward state at this time, and the connecting rod 12 will drive the lifting plate 13 and the ratchet gear 15 to move downward. When the lifting plate 13 moves downward, the rotating mechanism will operate to engage with the ratchet gear 15, so that the ratchet gear 15 cannot rotate clockwise at this time. The spur gear 16 fixed outside the connecting rod 12 will also move downward with the lifting plate 13. The outside of the feeding box 5 is provided with an engagement mechanism, which is used to control the rotation of the spur gear 16 by a certain number of turns when the connecting rod 12 moves upward, so that the pressing plate 10 is flipped. When the connecting rod 12 moves downward, the engagement mechanism controls the spur gear 16 to stop rotating. In the initial state, the engagement mechanism does not contact the downward moving spur gear 16. When the spur gear 16 moves to the limit distance, the lifting plate 13 will trigger the engagement mechanism to operate. At this time, the engagement mechanism will move, and at this time, the spur gear 16 will contact the engagement mechanism when it moves upward. With the continuous upward movement of the spur gear 16, the spur gear 16 will rotate counterclockwise. The rotation of the spur gear 16 will drive the pressing plate 10 to swing through the connecting rod 12. When the spur gear 16 passes through the engagement mechanism, the pressing plate 10 normally flips 90°. Because the plastic bags to be processed will be continuously fed into the inside of the feeding box 5, at this time, the plastic bags above the pressing plate 10 can end the blocking of the plastic bags after the pressing plate 10 is flipped. The plastic bags will fall to the shredding area under the action of gravity. The ratchet gear 15 is blocked by the rotating mechanism and cannot rotate clockwise, thereby ensuring that the pressing plate 10 is in an open state during the upward movement of the connecting rod 12. When the connecting rod 12 rises to the limit distance, the rotating mechanism again blocks the ratchet gear 15 and disengages from the ratchet gear 15. At this time, the ratchet gear 15 can rotate clockwise, and after the connecting rod 12 rises to the limit distance, the lifting plate 13 also rises to the limit distance. The engagement mechanism will move again to ensure that the connecting rod 16 does not contact the engagement mechanism when the connecting rod 16 moves downward, so that the spur gear 16 does not drive the connecting rod 12 to rotate. Subsequently, the above-mentioned actions are repeated to keep the pressing plate 10 closed to extrude the plastic bag when the pressing plate 10 moves downward, and automatically open to provide a channel for the plastic bag to fall when the pressing plate 10 moves upward.
[0027] Further, as shown in Figure 9 and Figure 10As shown, the plastic recycling device further comprises a reset mechanism for controlling the return of the second pressing plate 10 after it is flipped, which is arranged at the bottom end of the second pressing plate 10. When the second pressing plate 10 swings, the reset mechanism operates to push the second pressing plate 10 to swing in the reverse direction to return to the original position after the rotating mechanism is disengaged from the engagement with the ratchet gear 15.
[0028] As an embodiment, as shown in Figure 7 and Figure 8 The rotating mechanism comprises an inclined block 17, an L-shaped rod 18, a connecting block 19, a sliding groove 20, a compression spring 21 and an inclined plate 22. The following is a detailed description of the rotating mechanism: The inclined block 17 is fixed to the outer side of the feeding box 5, the L-shaped rod 18 is fixed to the top end of the connecting block 19, and in the initial state, the inclined block 17 and the L-shaped rod 18 are in a state of close contact, and the inclined block 17 exerts pressure on the L-shaped rod 18. The sliding groove 20 is arranged on the side of the lifting plate 13 away from the feeding box 5, and the arrangement of the sliding groove 20 provides installation space for the internal structure. The connecting block 19 is slidingly connected to the inside of the sliding groove 20. The two ends of the compression spring 21 are fixed between the connecting block 19 and the inner wall of the sliding groove 20, and at this time the compression spring 21 is in a compressed state. The inclined plate 22 is fixed to the side of the connecting block 19 close to the ratchet gear 15, and the inclined plate 22 is also in a state of disengagement from the ratchet gear 15. When the lifting plate 13 moves downward, the L-shaped rod 18 gradually disengages from the close contact with the inclined block 17, and the compression spring 21 releases the elastic potential energy, thereby pushing the connecting block 19 to move towards the ratchet gear 15. The movement of the connecting block 19 drives the inclined plate 22 to move synchronously. After the inclined plate 22 moves a certain distance, it engages with the ratchet gear 15, thereby limiting the rotation of the ratchet gear 15. When the lifting plate 13 moves up to the limit distance, the inclined surface of the inclined block 17 again presses the L-shaped rod 18, causing the L-shaped rod 18 to move away from the ratchet gear 15. The L-shaped rod 18 drives the inclined plate 22 to move away from the ratchet gear 15 through the connecting block 19, thereby disengaging from the engagement with the ratchet gear 15. At this time, the ratchet gear 15 can rotate clockwise.
[0029] Further, as shown in Figure 7 and Figure 9 The engaging mechanism comprises a rack 23, a sliding rod 24, a sliding rod 25, a pressing rod 26, an inclined block 27 and an inclined block 28. The following is a detailed description of the engaging mechanism: The rack 23 is fixed with the slide bar one 24 and the slide bar two 25, in the initial state, the rack 23 is not in the path of the spur gear 16 downward movement, at this time, the connecting rod 12 drives the spur gear 16 downward movement without contacting the rack 23, the slide bar one 24 and the slide bar two 25 are both slidingly connected with the outside of the feeding box 5, the pressing rod 26 is fixed with the outside of the lifting plate 13, the inclined block two 27 is fixed with the outside of the slide bar one 24, and when the lifting plate 13 moves downward to the limit distance, the lifting plate 13 will extrude the inclined surface of the inclined block two 27 through the pressing rod 26, and the force of the inclined block two 27 will drive the rack 23 to move horizontally towards the spur gear 16, and when the inclined block two 27 moves to the limit distance, the edge of the spur gear 16 will contact the moving path of the rack 23, at this time, the upward movement of the spur gear 16 will be affected by the rack 23 to rotate, and the spur gear 16 drives the pressing plate two 10 to overturn through the connecting rod 12, thereby ending the blocking of the plastic bag above it, the inclined block three 28 is fixed with the outside of the slide bar two 25, the pressing rod 26 is in contact with the inclined block three 28, and when the lifting plate 13 moves upward to reset to the initial position, the lifting plate 13 will drive the pressing rod 26 to extrude the inclined block three 28, and the force of the inclined block three 28 will move horizontally away from the spur gear 16 to reset, and the horizontal movement of the inclined block three 28 will drive the slide bar two 25 to move away from the rack 23, at this time, the position of the rack 23 after resetting is again outside the downward movement path of the spur gear 16, and the downward movement of the spur gear 16 will not contact the rack 23, thereby repeating the above actions to realize the function of the pressing plate two 10 downward movement without swinging and upward swinging through the rotation change of the spur gear 16.
[0030] Further, as shown in Figure 8 、 Figure 9 and Figure 10 , the reset mechanism includes an arc-shaped rod 29, an arc-shaped tube 30 and a compression spring two 31, which will be specifically described below: The arc-shaped rod 29 is fixed with the bottom end of the pressing plate two 10, and when the pressing plate two 10 swings, the pressing plate two 10 will drive the arc-shaped rod 29 to move, the arc-shaped tube 30 is fixed with the bottom end of the pressing plate one 9, the end of the arc-shaped rod 29 away from the pressing plate two 10 is slidingly connected to the inside of the arc-shaped tube 30, and the compression spring two 31 is fixed between the inner wall of the arc-shaped tube 30 and the arc-shaped rod 29, and when the arc-shaped rod 29 moves, it will extrude the compression spring two 31 along the inside of the arc-shaped tube 30, so that the compression spring two 31 deforms and generates elastic potential energy, and when the inclined plate 22 ends the engagement with the ratchet gear 15, the compression spring two 31 will release the elastic potential energy to push the pressing plate two 10 to swing in the opposite direction to reset.
[0031] Among them, as shown in Figure 11As shown, the top end of the pressing plate 1 9 is fixed with a compression spring 2 31, which is designed as a "right triangle", and when the pressing plate 1 9 and the baffle 1 1 are stacked with plastic bags, the plastic bags will slide along the slope of the compression spring 2 31, and when the pressing plate 2 10 is opened, the plastic bags will fall into the shredding area.
[0032] As an embodiment, as shown in Figure 12 and Figure 13 As shown, the outer side of the feeding box 5 is fixed with a fixed plate 32, one end of the fixed plate 32 away from the feeding box 5 is fixed with a plurality of triangular blocks 33, the outer side of the pressing plate 1 9 is fitted with a movable rod 34, the outer side of the lifting plate 1 3 is provided with an elastic vibration mechanism for the lifting plate 1 3 to move in cooperation with the plurality of triangular blocks 33, driving the movable rod 34 to reciprocate and generate vibration impact on the pressing plate 1 9, when the lifting plate 1 3 moves down, the lifting plate 1 3 will drive the elastic vibration mechanism to run synchronously, and the elastic vibration mechanism will contact the slope of the triangular block 33 every certain distance, and will be affected by the slope of the triangular block 33, and the elastic vibration mechanism will drive the movable rod 34 to move away from the pressing plate 1 9, and then, when the elastic vibration mechanism runs over the triangular block 33, the elastic vibration mechanism will drive the movable rod 34 to reset, and when the movable rod 34 resets, it will impact the pressing plate 1 9, and the pressing plate 1 9 will vibrate due to the sudden impact, and in the process of vibration, the pressing plate 1 9 will exert vibration force on the plastic bags below, forcing the plastic bags to be more compact, and at the same time, the slope of the compression spring 2 31 can also exert vibration force on the plastic bags, avoiding the situation that the plastic bags are stuck on the slope of the compression spring 2 31 due to friction.
[0033] Further, as shown in Figure 12 and Figure 13 The elastic vibration mechanism includes a side plate 35, a connecting disc 36, a side rod 37, a tension spring 38, a compression spring 3 39 and a fixed disc 40, which will be described in detail as follows: The side plate 35 is fixed to the outer side of the lifting plate 13, and the movable rod 34 slides in the inner side of the side plate 35. When the lifting plate 13 moves, it drives the movable rod 34 to move through the side plate 35. The connecting disc 36 is fixed to the outer side of the movable rod 34, and the movement of the movable rod 34 drives the connecting disc 36 to move. The side rod 37 is fixed to the outer side of the connecting disc 36, and the movement of the connecting disc 36 drives the side rod 37 to move. The side rod 37 is in contact with the triangular block 33. When the side rod 37 moves and contacts the inclined surface of the triangular block 33, the side rod 37 is blocked by the inclined surface of the triangular block 33 and moves. The movement of the side rod 37 drives the movable rod 34 to move away from the pressing plate 9. The extension spring 38 is fixed between the side plate 35 and the connecting disc 36. Then, the movement of the connecting disc 36 pulls the extension spring 38, causing the extension spring 38 to deform and generate elastic potential energy. The compression spring three 39 is fixed between the connecting disc 36 and the fixed disc 40. The fixed disc 40 is slidingly connected to the outer side of the movable rod 34. The end of the fixed disc 40 away from the movable rod 34 is fixed to the side plate 35. The connecting disc 36 also presses the compression spring three 39 together with the fixed disc 40, causing the compression spring three 39 to deform and generate elastic potential energy. When the side rod 37 passes the triangular block 33, the extension spring 38 and the compression spring three 39 release the elastic potential energy at the same time, driving the movable rod 34 to return to the original position through the connecting disc 36. When the movable rod 34 returns to the original position, it hits the pressing plate 9. When the movable rod 34 hits the pressing plate 9, the pressing plate 9 generates a reaction force, realizing the function of high-frequency and rapid vibration of the pressing plate 9.
[0034] In addition, as shown in Figure 14 The connecting rod 12 and the movable rod 34 are rotatably connected to the isolation plate 41. The isolation plate 41 is slidingly connected to the inside of the feeding box 5. The connecting rod 12 and the movable rod 34 move in the path below. The feeding box 5 needs to have a gap to accommodate the movement of the connecting rod 12 and the movable rod 34. At this time, the plastic bag may be separated from the inside of the feeding box 5 along the gap. The design of the isolation plate 41 can ensure that the isolation plate 41 always stays inside the feeding box 5 and fills the gap. At this time, the plastic bag inside the feeding box 5 is blocked by the isolation plate 41 and cannot escape from the inside.
[0035] In addition, as shown in Figure 1 and Figure 3 The feeding box 5 is fixed with a dust cover 42 on both sides. The dust cover 42 is made of polytetrafluoroethylene material, which can prevent dust from touching the internal structure. The polytetrafluoroethylene material itself has good dustproof effect and is not easy to adhere to dust, which is suitable for the scene required in this embodiment.
[0036] As shown in Figure 15 A plastic recycling method, the method comprising the following steps: S1: Put the plastic bag into the inside of the feeding box 5; S2: Start the air cylinder 8, the air cylinder 8 runs and drives the pressing plate 1 9 to move down, and the pressing plate 1 9 moves down and drives the pressing plate 2 10 to move down at the same time, so that the plastic bag is blocked by the pressing plate 1 9 and the pressing plate 2 10.
[0037] In this embodiment, first start the motor 6, the output end of the motor 6 is engaged with the chain 7 on the outside of the shredding roller 3, the motor 6 runs and drives the shredding roller 3 to rotate through the chain 7, at this time, the plastic bag is put into the cavity 2 through the feeding box 5, the plastic bag falls on the shredding roller 3 under the action of gravity, and the shredding roller 3 drives the plastic bag to rotate, and the plastic bag is blocked by the fixed shredding tooth 4 when it moves, so it will tear under the action of pressure, the torn plastic bag will fall through the gap between the shredding roller 3 and the shredding tooth 4, thereby completing the shredding process of the plastic, when the inside of the feeding box 5 is put into a certain plastic bag, start the air cylinder 8, the air cylinder 8 runs and drives the pressing plate 1 9 to move down, and the pressing plate 1 9 moves down and drives the pressing plate 2 10 to move down at the same time, at this time, the pressing plate 1 9 and the pressing plate 2 10 move down and press the plastic bag, not only accelerate the falling speed of the plastic bag, but also avoid the problem of elastic tearing area of the plastic bag, at this time, the pressing plate 1 9 and the pressing plate 2 10 press the plastic, the plastic bag in the feeding box 5 is pressed together, which is convenient for the shredding roller 3 to engage and pull the bag body; In the initial state, the inclined block 17 and the L-shaped rod 18 are in the state of close contact, the inclined block 17 exerts pressure on the L-shaped rod 18, and the compression spring 21 is in the compressed state at this time, and the inclined plate 22 is also in the state of disengagement with the ratchet gear 15. When the lifting plate 13 moves downward, the L-shaped rod 18 gradually moves away from the close contact with the inclined block 17, and the compression spring 21 releases the elastic potential energy, thereby pushing the connecting block 19 to move towards the direction of the ratchet gear 15. The movement of the connecting block 19 drives the inclined plate 22 to move synchronously. After the inclined plate 22 moves a certain distance, it is engaged with the ratchet gear 15, thereby limiting the rotation of the ratchet gear 15. In the initial state, the rack 23 is not in the path of the downward movement of the spur gear 16. At this time, the downward movement of the spur gear 16 driven by the connecting rod 12 will not contact the rack 23. When the lifting plate 13 moves to the limit distance, the lifting plate 13 will press the inclined surface of the inclined block 27 through the pressing rod 26, and the force of the inclined block 27 will drive the rack 23 to move horizontally towards the direction of the spur gear 16 through the sliding rod 1. When the inclined block 27 moves to the limit distance, the edge of the spur gear 16 will contact the movement path of the rack 23. At this time, the upward movement of the spur gear 16 will be affected by the rotation of the rack 23, and the spur gear 16 will drive the pressing plate 10 to flip through the connecting rod 12, thereby ending the blocking of the plastic bag above it. At this time, the plastic bag can fall to the shredding area under the action of gravity, and the pressing plate 10 will drive the arc-shaped rod 29 to move when the pressing plate 10 swings. The arc-shaped rod 29 will extrude the compression spring 31 along the inside of the arc-shaped tube 30 when it moves, causing the compression spring 31 to deform and generate elastic potential energy. Since the inclined plate 22 is engaged with the ratchet gear 15, the compression spring 31 cannot push the pressing plate 10 to reverse swing and reset through the arc-shaped rod 29 at this time. When the lifting plate 13 moves to the limit distance, the inclined surface of the inclined block 17 again extrudes the L-shaped rod 18, causing the L-shaped rod 18 to move away from the ratchet gear 15. The L-shaped rod 18 will drive the inclined plate 22 to move away from the ratchet gear 15 through the connecting block 19, thereby disengaging from the engagement with the ratchet gear 15. At this time, the ratchet gear 15 can rotate clockwise, and the compression spring 31 will release the elastic potential energy at this time, thereby pushing the pressing plate 10 to reverse swing and reset through the arc-shaped rod 29. When the lifting plate 13 moves to the initial position, the lifting plate 13 will drive the pressing rod 26 to extrude the inclined block 28, and the force of the inclined block 28 will move horizontally away from the spur gear 16. The horizontal movement of the inclined block 28 will drive the sliding rod 25 to move away from the rack 23. At this time, the position of the rack 23 after resetting is again outside the downward movement path of the spur gear 16, and the downward movement of the spur gear 16 will not contact the rack 23. When the lifting plate 13 moves, it will drive the movable rod 34 to move through the side plate 35, and the movable rod 34 will drive the connecting disc 36 to move, and the connecting disc 36 will drive the side rod 37 to move, and the side rod 37 will contact the inclined surface of the triangular block 33 every certain distance, and the side rod 37 will be blocked by the inclined surface of the triangular block 33 to move, and the movement of the side rod 37 will first drive the movable rod 34 to separate from the pressing plate 9, and then the movement of the connecting disc 36 will pull the tension spring 38 to deform and generate elastic potential energy, and the movement of the connecting disc 36 will also press the compression spring 39 together with the fixed disc 40 to deform and generate elastic potential energy, and then when the side rod 37 passes the triangular block 33, the tension spring 38 and the compression spring 39 will release the elastic potential energy at the same time, and the connecting disc 36 will drive the movable rod 34 to reset, and the movable rod 34 will hit the pressing plate 9 when resetting, and the movable rod 34 will realize the function of high-frequency and rapid vibration of the pressing plate 9 under the reaction force of the pressing plate 9.
[0038] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A plastic recycling device, comprising a cavity (2) disposed at the top of a support frame (1), wherein a shredding roller (3) is rotatably connected inside the cavity (2) and shredding teeth (4) are fixedly connected thereto, a feeding box (5) is installed at the top of the cavity (2), and a motor (6) is installed on the outside of the support frame (1), wherein the output end of the motor (6) is engaged with the outside of the shredding roller (3) by a chain (7), characterized in that, Also include: The cylinder (8) is installed at the top of the feeding box (5), the output end of the cylinder (8) is drivingly connected with the pressing plate one (9) which is slidingly connected with the inner wall of the feeding box (5), the pressing plate one (9) is provided with the pressing plate two (10) on the outside, a connecting rod (12) is inserted into the pressing plate one (9) and the pressing plate two (10) inside, the connecting rod (12) is fixedly connected with the pressing plate two (10), the connecting rod (12) is rotatably connected with the pressing plate one (9), the top of the pressing plate one (9) is fixedly connected with the baffle (11), the both ends of the connecting rod (12) are rotatably connected with the lifting plate (13) on the outside, a pair of guide rods (14) are fixedly connected on both sides of the feeding box (5), the pair of guide rods (14) penetrate through the lifting plate (13); The ratchet gear (15) is fixedly connected on the outside of the connecting rod (12), the lifting plate (13) is provided with a rotating mechanism on the periphery, which is used for limiting the clockwise rotation of the ratchet gear (15) when the connecting rod (12) moves downward, and the limitation is released when the connecting rod (12) resets; The spur gear (16) is fixedly connected on the outside of the connecting rod (12), the outside of the feeding box (5) is provided with an engagement mechanism, which is used for controlling the rotation of the spur gear (16) for a certain number of turns to make the pressing plate two (10) overturn when the connecting rod (12) moves upward, and the engagement mechanism controls the spur gear (16) to stop rotating when the connecting rod (12) moves downward; The reset mechanism for controlling the return of the pressing plate two (10) after overturning is arranged at the bottom end of the pressing plate two (10).
2. The plastic recycling device of claim 1, wherein, The rotating mechanism comprises an inclined block one (17), an L-shaped rod (18), a connecting block (19), a sliding groove (20), a compression spring one (21) and an inclined plate (22), the inclined block one (17) is fixedly connected on the outside of the feeding box (5), the L-shaped rod (18) is fixedly connected at the top of the connecting block (19), the sliding groove (20) is formed on the side of the lifting plate (13) away from the feeding box (5), the connecting block (19) is slidingly connected in the sliding groove (20), the both ends of the compression spring one (21) are fixedly connected between the connecting block (19) and the inner wall of the sliding groove (20), and the inclined plate (22) is fixedly connected on the side of the connecting block (19) close to the ratchet gear (15).
3. The plastic recycling device of claim 1, wherein, The engagement mechanism comprises a rack (23), a sliding rod one (24), a sliding rod two (25), a pressing rod (26), an inclined block two (27) and an inclined block three (28), the rack (23) is fixedly connected with the sliding rod one (24) and the sliding rod two (25), the sliding rod one (24) and the sliding rod two (25) are slidingly connected with the outside of the feeding box (5), the pressing rod (26) is fixedly connected on the outside of the lifting plate (13), the inclined block two (27) is fixedly connected on the outside of the sliding rod one (24), the inclined block three (28) is fixedly connected on the outside of the sliding rod two (25), and the pressing rod (26) is in contact with the inclined block three (28).
4. The plastic recycling device of claim 1, wherein, The reset mechanism comprises an arc-shaped rod (29), an arc-shaped tube (30) and a compression spring (31), one end of the arc-shaped rod (29) is fixedly connected to the bottom end of the second pressing plate (10), the arc-shaped tube (30) is fixedly connected to the bottom end of the first pressing plate (9), the other end of the arc-shaped rod (29) is slidably connected to the inner portion of the arc-shaped tube (30), and the compression spring (31) is fixedly connected between the inner wall of the arc-shaped tube (30) and the arc-shaped rod (29).
5. The plastic recycling device of claim 4, wherein, The top end of the first pressing plate (9) is fixedly connected with the compression spring (31), and the compression spring (31) is designed in a "right triangle".
6. The plastic recycling device of claim 4, wherein, The outer side of the feeding box (5) is fixedly connected with a fixed plate (32), one end of the fixed plate (32) away from the feeding box (5) is fixedly connected with a plurality of triangular blocks (33), the outer side of the first pressing plate (9) is attached with a movable rod (34), and the outer side of the lifting plate (13) is provided with an elastic vibration mechanism for cooperating with the plurality of triangular blocks (33) when the lifting plate (13) moves, so as to drive the movable rod (34) to reciprocate and vibrate and impact the first pressing plate (9).
7. The plastic recycling device of claim 6, wherein, The elastic vibration mechanism comprises a side plate (35), a connecting disc (36), a side rod (37), a tension spring (38), a compression spring (39) and a fixed disc (40), the side plate (35) is fixedly connected to the outer side of the lifting plate (13), the movable rod (34) is slidably connected to the inner portion of the side plate (35), the connecting disc (36) is fixedly connected to the outer side of the movable rod (34), the side rod (37) is fixedly connected to the outer side of the connecting disc (36), the side rod (37) is attached to the triangular block (33), the tension spring (38) is fixedly connected between the side plate (35) and the connecting disc (36), the compression spring (39) is fixedly connected between the connecting disc (36) and the fixed disc (40), the fixed disc (40) is slidably connected to the outer side of the movable rod (34), and one end of the fixed disc (40) away from the movable rod (34) is fixedly connected to the side plate (35).
8. The plastic recycling device of claim 6, wherein, The outer sides of the connecting rod (12) and the movable rod (34) are rotatably connected to an isolation plate (41), and the isolation plate (41) is slidably connected to the inner portion of the feeding box (5).
9. The plastic recycling device of claim 1, wherein, The two sides of the feeding box (5) are fixedly connected with dust covers (42), and the dust covers (42) are made of polytetrafluoroethylene.
10. A plastic recycling method applied to the plastic recycling and reusing device according to any one of claims 1-9, characterized in that, The method comprises the following steps: S1: putting a plastic bag into the inner portion of the feeding box (5); S2: starting the air cylinder (8), the air cylinder (8) is driven to move downward when running, and the first pressing plate (9) is driven to move downward at the same time, so that the plastic bag is blocked by the first pressing plate (9) and the second pressing plate (10).