A plastic recycling shredder

Abstract

The utility model belongs to the technical field of plastics crushing device, concretely relates to a recycling plastics crusher, including the crusher body, the top surface of crusher body installs the feed port, the top surface of one side of feed port welds the mounting bracket, the surface of one side of mounting bracket installs the servo motor, the surface of servo motor output end is connected two -way screw rod, the surface of other side of two -way screw rod is connected in bearing inner wall, the surface of bearing is installed in mounting bracket longitudinal end, the surface of mounting bracket is connected the connecting frame of sliding, the surface of connecting frame horizontal end is set up the thread groove and is connected in the surface of two -way screw rod with thread, the surface of connecting frame longitudinal end is welded in the top of splash baffle, the utility model discloses, through the servo motor of installation on the mounting bracket drive two -way screw rod rotation, thereby drive the splash baffle of both sides screw connection moves on the surface of feed port, thereby when the plastics in the body is carried out the crushing processing, the feed port is shielded, avoids the hurt of splashing plastics from feed port splashing out.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic crushing devices, specifically relating to a plastic recycling crusher. Background Technology

[0002] Plastic shredders are core pre-treatment equipment in plastic recycling systems. Their primary function is to mechanically crush various waste plastic products, such as discarded plastic bottles, films, packaging materials, industrial scraps, and scrapped plastic parts, into uniformly sized particles or fragments. These crushed materials not only facilitate subsequent cleaning, drying, and sorting processes, but can also be transformed into recycled raw materials that can be reused in plastic product manufacturing through processes such as melting and granulation, breaking the one-way cycle of "use-waste." The value of plastic recycling shredders is reflected in three dimensions: environment, resources, and economy. In terms of environmental protection, it can effectively reduce soil and groundwater pollution caused by the indiscriminate disposal or landfill of waste plastics, as well as the emission of harmful gases from incineration, thus alleviating the damage of "white pollution" to the ecosystem. In terms of resource utilization, it promotes the transformation of plastic resources from "disposable consumption" to "recycling," making up for the resource gap of petroleum-based virgin plastic raw materials and reducing dependence on non-renewable fossil energy. In terms of economy, the cost of recycled plastic raw materials pretreated by it is lower than that of virgin raw materials, which can reduce production costs for plastic processing enterprises, while driving employment and development in the waste plastic recycling industry chain, forming a sustainable model of win-win for "environmental protection, resources, and economy." Existing plastic shredders operate at high speeds, with blades performing powerful shearing, impact, and tearing operations on waste plastics at extremely high speeds. The resulting plastic fragments, under the influence of enormous kinetic energy, not only gain the force to bounce in all directions due to the direct impact of the blades, but also constantly collide and bounce within the complex space of the shredding chamber. Since the top feed inlet, which serves as the channel for material entry, is directly exposed to the environment, these high-speed plastic fragments are very likely to splash out from the feed inlet. The speed and force of this splashing are significant, posing a safety hazard to operators and consequently affecting the safety and efficiency of processing and production. Utility Model Content

[0003] The purpose of this utility model is to provide a plastic recycling crusher, which aims to solve the problem that existing plastic crushers, during high-speed operation, cause plastic fragments to be ejected in all directions due to the strong shearing, impact, and tearing of waste plastic by the blades at extremely high speeds. These fragments, under the influence of enormous kinetic energy, not only experience direct impact from the blades but also continuously collide and bounce within the complex space of the crushing chamber. Since the top feed inlet, as the material entry channel, is directly exposed to the environment, these high-speed plastic fragments are highly likely to splash out from the feed inlet with considerable speed and force, posing a safety hazard to operators and affecting the safety and efficiency of processing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plastic recycling crusher, comprising a crusher body, a feed inlet mounted on the top surface of the crusher body, a mounting frame welded to one side of the top surface of the feed inlet, a servo motor mounted on one side of the mounting frame, a bidirectional lead screw connected to the output end of the servo motor, the other side of the bidirectional lead screw sleeved on the inner wall of a bearing, the bearing surface mounted on the longitudinal end of the mounting frame, a connecting frame slidably connected to the surface of the mounting frame, a threaded groove formed on the transverse end surface of the connecting frame and threadedly connected to the surface of the bidirectional lead screw, a splash guard welded to the top of the longitudinal end surface of the connecting frame, a circular groove formed on the longitudinal end surface of the splash guard, a guide rod surface slidably sleeved on the guide rod surface, the bottom surface of the guide rod connected to the top of a base plate, a feed inlet surface welded to the surface of the base plate, a control panel mounted on the surface of the crusher body, a limit switch electrically connected to the control panel, a limit switch surface mounted on the top of the base plate, and the limit switch electrically connected to the servo motor.

[0005] As a preferred embodiment of the plastic recycling crusher of this utility model, the two connecting frames are symmetrically distributed on both sides of the bidirectional lead screw.

[0006] As a preferred embodiment of the plastic recycling crusher of this utility model, the splash guard is an L-shaped integrated structure, the shape and size of which are adapted to the opening end of the feed inlet.

[0007] As a preferred embodiment of the plastic recycling crusher of this utility model, the guide slide rod is an inverted "U" shaped integrated structure, and the shape and size of the horizontal end are adapted to the circular groove.

[0008] In a preferred embodiment of this utility model of a plastic recycling crusher, the splash guard, the circular groove, and the guide slide rod form a sliding connection structure.

[0009] As a preferred embodiment of the plastic recycling crusher of this utility model, the two limit switches are symmetrically distributed on both sides of the top of the base plate, and the servo motor, control panel and limit switches form an electrical connection structure.

[0010] Compared with the prior art, the beneficial effects of this utility model are: A servo motor mounted on the mounting bracket drives a bidirectional lead screw to rotate, which in turn moves the anti-splash baffles connected by threads on both sides on the surface of the feed inlet. This shields the feed inlet when the plastic is being crushed inside the machine, preventing splashed plastic from flying out of the feed inlet and causing injury. In addition, the operating data of the servo motor can be set through the control panel to control the opening and closing of the two splash guards. At the same time, the limit switches installed on the base plate limit the splash guards that move to both sides to prevent damage caused by excessive opening and closing of the splash guards. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top-view exploded structural diagram of the present invention; Figure 4 This is an enlarged structural diagram of the splash guard and connecting frame of this utility model.

[0012] In the diagram: 1. Crusher body; 2. Feed inlet; 3. Mounting frame; 4. Servo motor; 5. Two-way lead screw; 6. Bearing; 7. Connecting frame; 8. Threaded groove; 9. Splash guard; 10. Circular groove; 11. Guide slide rod; 12. Base plate; 13. Control panel; 14. Limit switch. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4This utility model provides the following technical solution: a plastic recycling crusher, including a crusher body 1, a feed inlet 2 installed on the top surface of the crusher body 1, a mounting frame 3 welded to one side of the top surface of the feed inlet 2, a servo motor 4 installed on one side of the mounting frame 3, a bidirectional lead screw 5 connected to the output end of the servo motor 4, the other side of the bidirectional lead screw 5 sleeved on the inner wall of a bearing 6, the bearing 6 mounted on the longitudinal end of the mounting frame 3, a connecting frame 7 slidably connected to the surface of the mounting frame 3, a threaded groove 8 opened on the transverse end surface of the connecting frame 7 and threadedly connected to the surface of the bidirectional lead screw 5, a splash guard 9 welded to the top of the longitudinal end surface of the connecting frame 7, and a circular groove 10 opened on the longitudinal end surface of the splash guard 9. The surface of the groove 10 is slidably sleeved on the surface of the guide slide rod 11. The bottom surface of the guide slide rod 11 is connected to the top of the base plate 12. The surface of the base plate 12 is welded to the surface of the feed inlet 2. The control panel 13 is installed on the surface of the crusher body 1. The control panel 13 is electrically connected to the limit switch 14. The surface of the limit switch 14 is installed on the top of the base plate 12. The limit switch 14 is electrically connected to the servo motor 4. In this design scheme, the crusher body 1 and the feed inlet 2 constitute the main body of the plastic crusher. A large number of related components are set in the main body of the plastic crusher. Since they are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution. The main model of the plastic crusher in this solution is: 800 type plastic crusher KN600.

[0015] In operation: The main body of the plastic crusher is driven by a motor and a pulley, which in turn drives the blades on the main shaft to rotate at high speed. Waste plastic is fed in through the upper feed port 2. The high-speed rotating blades shear, tear, and impact the plastic, crushing it into smaller particles or fragments. The crushed plastic falls through the screen and is discharged.

[0016] Preferably, two connecting brackets 7 are symmetrically distributed on both sides of the bidirectional lead screw 5.

[0017] In practical use, the two-way lead screw 5 has threads with opposite directions on both sides, which are adapted to the threaded grooves 8 of the two connecting frames 7 respectively, so as to realize synchronous reverse movement. The servo motor 4 is turned on again to rotate in the opposite direction, thereby driving the connecting frame 7 to move towards the middle on the two-way lead screw 5, thereby moving and closing the two separate splash guards 9 together to block the top of the feed inlet 2.

[0018] Preferably, the splash guard 9 is an L-shaped integrated structure, and its shape and size are adapted to the opening end of the feed inlet 2.

[0019] In practical use, after the servo motor 4 is started, it drives the connected bidirectional lead screw 5 to rotate in the bearing 6, thereby driving the two sets of connecting frames 7 threaded on the bidirectional lead screw 5 to move to both sides at the same time. When the connecting frame 7 moves, the splash guard 9 connected to its bottom is driven to move together, thereby exposing the blocked feed port 2. In addition, when the two splash guards 9 are closed, the contact surface has a rubber sealing strip to prevent fragments from splashing from the gap.

[0020] Preferably, the guide slide rod 11 has an inverted "U" shaped integrated structure, and the shape and size of its lateral end are adapted to the circular groove 10.

[0021] In actual use, while the splash guard 9 moves, the circular groove 10 on the other side of the splash guard 9, which is sleeved on the guide slide rod 11, guides and limits the movement range of the splash guard 9.

[0022] Preferably, the splash guard 9, the circular groove 10 and the guide slide rod 11 form a sliding connection structure.

[0023] In actual use, while the splash guard 9 moves, the circular groove 10 on the other side of the splash guard 9, which is sleeved on the guide slide rod 11, guides and limits the movement range of the splash guard 9, so that the two splash guards 9 can move stably to both sides at the top of the feed inlet 2, thereby exposing the blocked feed inlet 2.

[0024] Preferably, two limit switches 14 are symmetrically distributed on both sides of the top of the base plate 12, and the servo motor 4, the control panel 13 and the limit switches 14 form an electrical connection structure.

[0025] In practical use, the control panel 13 can preset the opening and closing angle of the baffle (such as 30%, 50%, 100%), and the opening degree of the baffle can be precisely adjusted by controlling the rotation angle of the servo motor 4; at the same time, a 'manual button' is provided to control the opening and closing action in real time. The limit switch 14 is installed on the top of the base plate 12, corresponding to the two ends of the guide slide rod 11. When the splash baffle 9 moves to the maximum opening, its side triggers the limit switch 14, and the servo motor 4 stops immediately. The housing of the servo motor 4 adopts an IP54 dustproof and waterproof design to extend its service life.

[0026] Working principle: When crushing recycled plastic products, the operating data of the servo motor 4 is set through the control panel 13 according to the speed of the feeding mechanism or manual feeding. The servo motor 4 is then started via the control panel 13. After starting, the servo motor 4 drives the connected bidirectional lead screw 5 to rotate within the bearing 6, thereby causing the two sets of connecting frames 7 threaded onto the bidirectional lead screw 5 to move simultaneously to both sides. As the connecting frame 7 moves, the splash guard 9 connected to its bottom is also moved. Simultaneously, the other side of the splash guard 9 is sleeved on the guide slide rod 11. The circular groove 10 on the top guides and limits the movement range of the splash guard 9, so that the two splash guards 9 can move stably to both sides from the top of the feed inlet 2, thereby exposing the blocked feed inlet 2. At the same time, when the splash guard 9 moves to the two ends of the guide slide bar 11, the two limit switches 14 installed on the bottom plate 12 will trigger the limit switches 14 installed on both sides respectively. The limit switches 14 transmit the signal to the control system connected to the control panel 13, thereby stopping the servo motor 4 from rotating, thus facilitating the feeding of recycled plastic. After the plastic is fed in, the servo motor 4 starts up again and rotates in the opposite direction, which drives the connecting frame 7 to move towards the center on the bidirectional lead screw 5. This moves the two separate splash guards 9 together and closes them, blocking the top of the feed inlet 2 to prevent plastic fragments generated during the crushing process of the crusher body 1 from splashing out of the feed inlet 2 and injuring people. The plastic fed into the crusher body 1 is cut and crushed by the blades installed in the crusher body 1. The crushed plastic fragments are screened by the screen installed on the crusher body 1 and discharged through the discharge port on one side, thus completing one crushing process of the plastic. Then, the above operation is repeated to crush the recycled plastic in batches.

[0027] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic recycling crusher, comprising a crusher body (1), characterized in that: The feed inlet (2) is installed on the top surface of the crusher body (1). A mounting bracket (3) is welded to the top surface of one side of the feed inlet (2). A servo motor (4) is installed on one side of the mounting bracket (3). A bidirectional lead screw (5) is connected to the output end of the servo motor (4). The other side of the bidirectional lead screw (5) is sleeved on the inner wall of a bearing (6). The surface of the bearing (6) is mounted on the longitudinal end of the mounting bracket (3). A connecting bracket (7) is slidably connected to the surface of the mounting bracket (3). A threaded groove (8) is opened on the transverse end surface of the connecting bracket (7) and threadedly connected to the surface of the bidirectional lead screw (5). The longitudinal end of the connecting bracket (7) is... The splash guard (9) is welded to the top of the end surface. The splash guard (9) has a circular groove (10) on its longitudinal end surface. The circular groove (10) is slidably sleeved on the surface of the guide rod (11). The bottom surface of the guide rod (11) is connected to the top of the base plate (12). The surface of the base plate (12) is welded to the surface of the feed inlet (2). The control panel (13) is installed on the surface of the crusher body (1). The control panel (13) is electrically connected to the limit switch (14). The limit switch (14) is installed on the top of the base plate (12). The limit switch (14) is electrically connected to the servo motor (4).

2. The plastic recycling shredder according to claim 1, characterized in that: The two connecting frames (7) are symmetrically distributed on both sides of the bidirectional lead screw (5).

3. The plastic recycling shredder according to claim 1, characterized in that: The splash guard (9) is an L-shaped integrated structure, and its shape and size are adapted to the opening end of the feed inlet (2).

4. The plastic recycling shredder according to claim 1, characterized in that: The guide slide (11) is an inverted "U" shaped integrated structure, and the shape and size of the lateral end are adapted to the circular groove (10).

5. A plastic recycling shredder according to claim 4, characterized in that: The splash guard (9), the circular groove (10) and the guide slide rod (11) form a sliding connection structure.

6. A plastic recycling shredder according to claim 1, characterized in that: The two limit switches (14) are symmetrically distributed on both sides of the top of the base plate (12), and the servo motor (4), control panel (13) and limit switches (14) form an electrical connection structure.

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