A crushing assembly for recycling waste plastics

Abstract

The utility model relates to waste and old plastics recycling technical field especially, more particularly to a kind of crushing assembly for waste and old plastics recycling, this a kind of crushing assembly for waste and old plastics recycling includes upper shell and lower shell, the upper shell is rotatably connected with lower shell by first rotating shaft, the lower shell interior is provided with pulverization mechanism, the lower shell bottom is connected with filter screen plate, the upper shell is rotatably connected with feeding hopper by second rotating shaft. By loosening lock screw and lock nut, the upper shell can be opened by turning upside down around the first rotating shaft, directly expose the internal structure of lower shell, without overall disassembly shell, significantly shorten the maintenance time, by feeding hopper can be opened by turning upside down around the second rotating shaft, directly expose internal pulverization mechanism, shorten maintenance time, by maintenance door plate is installed in the side of lower shell by hinge, after opening, the components such as filter screen can be overhauled from side, further improve the convenience of overhaul.

Description

Technical Field

[0001] This utility model relates to the field of waste plastic recycling technology, and in particular to a crushing component for waste plastic recycling. Background Technology

[0002] Waste plastic is a colloquial term and does not refer to discarded, old, or useless plastic products. The vast majority of plastic products, especially those used in large quantities for single purposes, do not undergo significant changes in the properties of the plastic material itself after use. Therefore, they can be recycled and reprocessed into new plastic products for reuse. However, processing is necessary before reuse to achieve the goal of recycling.

[0003] A waste plastic recycling and crushing device, disclosed in CN218905983U, relates to the field of waste plastic recycling. It includes a crushing drum with a compression plate fixedly connected inside. A cylinder is located on the outer wall of the crushing drum, driving a rotating component to rotate, thereby continuously shaking the filter plate. This facilitates the collection of qualified plastics into a collection box and discharges unqualified plastics into a feeding cylinder. Driven by a feeding screw, the unqualified plastics are then discharged back to the crushing mechanism, improving overall crushing efficiency and ensuring uniform crushing, facilitating subsequent processing. Existing crushing devices typically have their crushing components installed inside a housing, which is mostly a single, integral structure. When the crushing components are to be repaired, the entire housing needs to be disassembled, affecting maintenance efficiency. Utility Model Content

[0004] The purpose of this invention is to address the problem that in existing technologies, the crushing components are installed inside the housing, and the housing is mostly an integral structure. When the crushing components are to be repaired, the entire housing needs to be disassembled, which affects the repair efficiency. This invention provides a crushing component for waste plastic recycling that effectively solves the problem of low repair efficiency of traditional crushing devices and achieves the goal of convenient repair.

[0005] To achieve the above objectives, this utility model provides a crushing assembly for recycling waste plastics, comprising an upper shell and a lower shell. The upper shell is rotatably connected to the lower shell via a first rotating shaft. A crushing mechanism is provided inside the lower shell, and a filter screen is connected to the bottom of the lower shell. The upper shell is rotatably connected to a feeding hopper via a second rotating shaft, and a maintenance door is provided on the lower shell. A first locking plate is provided on the upper shell, the lower shell, and the maintenance door, and a second locking plate is provided on the upper shell, the lower shell, and the feeding hopper. A locking screw is provided on the first locking plate, and the locking screw is connected to the second locking plate via a locking nut.

[0006] As a further description of the above technical solution: a first electromagnet is provided on the upper shell, a first fixing plate adapted to the first electromagnet is provided on the feeding hopper, a second electromagnet is provided on the lower shell, and a second fixing plate adapted to the second electromagnet is provided on the feeding hopper.

[0007] As a further description of the above technical solution: the crushing mechanism includes a crushing shaft, on which a plurality of crushing blades are provided, and the crushing shaft is mounted on the lower housing via a bearing seat.

[0008] As a further description of the above technical solution: the crushing blade is detachably connected to the scraper by bolts.

[0009] As a further description of the above technical solution: the feeding hopper includes a vertical hopper and a horizontal hopper, the lower end of the vertical hopper is rotatably connected to the upper shell through a second rotating shaft, and the upper end of the vertical hopper is connected to the horizontal hopper.

[0010] As a further description of the above technical solution: one end of the crushing mechanism is connected to the drive wheel assembly, and the drive wheel assembly is connected to the drive motor.

[0011] As a further description of the above technical solution: the inspection door panel is provided with hinges and handles.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] This invention allows the upper housing to be flipped open around the first rotation axis by loosening the locking screw and locking nut, directly exposing the internal structure of the lower housing without requiring complete disassembly, significantly shortening maintenance time. The feeding hopper can also be flipped open around the second rotation axis, directly exposing the internal crushing mechanism, further reducing maintenance time. A maintenance door panel, hinged to the side of the lower housing, allows for side inspection of components such as the filter screen, further enhancing maintenance convenience. This effectively solves the problem of low maintenance efficiency in traditional crushing devices, achieving the goal of convenient maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the crushing component in one embodiment of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the crushing component in one embodiment of the present invention. Figure 2 ;

[0016] Figure 3 for Figure 1 A schematic diagram of the crushing mechanism in the middle;

[0017] Figure 4 for Figure 1A magnified view of point A in the image.

[0018] Legend:

[0019] 1. Upper housing; 2. Lower housing; 3. First rotating shaft; 4. Crushing mechanism; 5. Filter screen; 6. Second rotating shaft; 7. Feed hopper; 8. Inspection door panel; 9. First locking plate; 10. Second locking plate; 11. Locking screw; 12. Locking nut; 13. First electromagnet; 14. First fixing plate; 15. Second electromagnet; 16. Second fixing plate; 17. Drive wheel assembly; 18. Drive motor; 19. Hinge; 20. Handle; 41. Crushing shaft; 42. Crushing blade; 43. Bearing seat; 44. Bolt; 45. Scraper; 71. Vertical bucket; 72. Horizontal bucket. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] like Figure 1-4 As shown, a crushing assembly for recycling waste plastics according to this utility model includes an upper shell 1 and a lower shell 2. The upper shell 1 is rotatably connected to the lower shell 2 via a first rotating shaft 3. A crushing mechanism 4 is provided inside the lower shell 2. A filter screen plate 5 is connected to the bottom of the lower shell 2. The upper shell 1 is rotatably connected to a feeding hopper 7 via a second rotating shaft 6. An inspection door plate 8 is provided on the lower shell 2. A first locking plate 9 is provided on the upper shell 1, the lower shell 2, and the inspection door plate 8. A second locking plate 10 is provided on the upper shell 1, the lower shell 2, and the feeding hopper 7. A locking screw 11 is provided on the first locking plate 9. The locking screw 11 is connected to the second locking plate 10 via a locking nut 12.

[0023] In the technical solution of this utility model, a closed space is formed when the upper and lower shells are closed, preventing plastic fragments from splashing during the crushing process, protecting the safety of operators, and preventing external debris from entering and affecting the crushing operation. The upper shell 1 cooperates with the feeding hopper 7 to guide waste plastic into the crushing area. When it is necessary to inspect the crushing mechanism 4, the locking screw 11 and locking nut 12 are loosened, and the upper shell 1 can be flipped up and opened around the first rotating shaft 3, directly exposing the internal structure of the lower shell 2 without the need for overall shell disassembly, which significantly shortens the inspection time. The feeding hopper 7 can be flipped up and opened around the second rotating shaft 6, directly exposing the internal crushing mechanism 4, shortening the inspection time. The inspection door 8 is installed on the side of the lower shell 2 through the hinge 19. After opening, the filter screen 5 and other components can be inspected from the side, further improving the convenience of inspection.

[0024] The inspection door panel 8 is equipped with a hinge 19 and a handle 20. The inspection door panel 8 provides a side inspection entrance. Operators can open the inspection door panel 8 through the handle 20 to directly inspect and clean the filter screen 5, or maintain some internal components of the lower housing 2 without having to fully open the upper and lower housings, thus simplifying the inspection process and improving equipment maintenance efficiency.

[0025] like Figure 1 and Figure 2 As shown, a first electromagnet 13 is provided on the upper housing 1, a first fixing plate 14 adapted to the first electromagnet 13 is provided on the feeding hopper 7, a second electromagnet 15 is provided on the lower housing 2, and a second fixing plate 16 adapted to the second electromagnet 15 is provided on the feeding hopper 7; by the attraction and cooperation between the first electromagnet 13 and the first fixing plate 14, and the second electromagnet 15 and the second fixing plate 16, and combined with the locking screw 11 and the locking nut 12, the upper housing 1 and the feeding hopper 7 are doubly fixed, thereby enhancing the stability of the upper housing 1 and the feeding hopper 7.

[0026] During maintenance, simply disconnect the power supply to the electromagnet.

[0027] like Figure 1 and Figure 3 As shown, the crushing mechanism 4 includes a crushing shaft 41, on which multiple crushing blades 42 are provided. The crushing shaft 41 is mounted on the lower housing 2 through a bearing seat 43. The drive motor 18 drives the crushing shaft 41 to rotate at high speed through the drive wheel set 17. The crushing blades 42 rotate accordingly, cutting, impacting and crushing the waste plastic entering the lower housing 2, and crushing it into particles that meet the recycling requirements.

[0028] The crushing blade 42 is detachably connected to the scraper 45 via bolts 44. The scraper 45 can move and squeeze the crushed plastic particles, which can change the position and force direction of the plastic particles, so that the plastic particles can have more full contact with the crushing blade 42, thereby improving the crushing effect and efficiency. The scraper 45 can be easily disassembled and replaced via bolts 44.

[0029] Specifically, one end of the crushing mechanism 4 is connected to the drive wheel set 17, and the drive wheel set 17 is connected to the drive motor 18.

[0030] like Figure 1 and Figure 2 As shown, the feeding hopper 7 includes a vertical hopper 71 and a horizontal hopper 72. The lower end of the vertical hopper 71 is rotatably connected to the upper shell 1 via a second rotating shaft 6, and the upper end of the vertical hopper 71 is connected to the horizontal hopper 72. The combined design of the vertical hopper 71 and the horizontal hopper 72 allows waste material to be smoothly fed into the crushing box 1 from above, effectively guiding the material into the shell from above and reducing waste or deviation of the material during the conveying process. The horizontal hopper 72 effectively prevents waste material from splashing out during the crushing process.

[0031] Working principle: The upper shell 1 and the lower shell 2 are connected by the first rotating shaft 3. The upper and lower shells are fixed by using the locking screw 11 and locking nut 12 passing through the first locking plate 9 and the second locking plate 10. At the same time, the feeding hopper 7 is installed in place by the electromagnet adsorbing the fixed plate and the locking screw tightening it. The drive motor 18 is started, and the operation of the crushing mechanism 4 is checked. Waste plastic is poured in from the horizontal hopper 72 of the feeding hopper 7 and enters the crushing space formed by the upper and lower shells through the vertical hopper 71. The drive motor 18 drives the crushing shaft 41 to rotate through the drive wheel set 17. The crushing blades 42 crush the plastic. The crushed particles are then crushed. The particles are screened by the filter screen 5. Qualified particles fall and are collected, while unqualified particles continue to be crushed. When maintenance is required, loosen the locking nut 12 and open the maintenance door 8 to inspect the filter screen 5. If the crushing mechanism 4 needs maintenance, disconnect the electromagnet power supply, further loosen the locking screw 11, and flip the upper housing 1 upward around the first rotating shaft 3 to directly contact the crushing shaft 41, crushing blades 42, and other components for blade replacement, cleaning of debris, etc. This effectively solves the problem of low maintenance efficiency of traditional crushing devices, and achieves the dual goals of convenient maintenance and efficient crushing, providing reliable equipment support for waste plastic recycling.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A crushing assembly for recycling waste plastics, characterized in that, It includes an upper shell (1) and a lower shell (2). The upper shell (1) is rotatably connected to the lower shell (2) via a first rotating shaft (3). The lower shell (2) is equipped with a crushing mechanism (4). A filter screen plate (5) is connected to the bottom of the lower shell (2). The upper shell (1) is rotatably connected to a feeding hopper (7) via a second rotating shaft (6). An inspection door plate (8) is provided on the lower shell (2). The upper housing (1), lower housing (2) and inspection door panel (8) are each provided with a first locking plate (9), and the upper housing (1), lower housing (2) and feeding hopper (7) are each provided with a second locking plate (10). The first locking plate (9) is provided with a locking screw (11), and the locking screw (11) is connected to the second locking plate (10) through a locking nut (12).

2. The crushing assembly for waste plastic recycling according to claim 1, characterized in that: The upper housing (1) is provided with a first electromagnet (13), the feeding hopper (7) is provided with a first fixing plate (14) adapted to the first electromagnet (13), the lower housing (2) is provided with a second electromagnet (15), and the feeding hopper (7) is provided with a second fixing plate (16) adapted to the second electromagnet (15).

3. The crushing assembly for waste plastic recycling according to claim 1, characterized in that: The crushing mechanism (4) includes a crushing shaft (41), on which a plurality of crushing blades (42) are provided. The crushing shaft (41) is mounted on the lower housing (2) via a bearing seat (43).

4. The crushing assembly for waste plastic recycling according to claim 3, characterized in that: The crushing blade (42) is detachably connected to the scraper (45) by bolts (44).

5. The crushing assembly for waste plastic recycling according to claim 1, characterized in that: The feeding hopper (7) includes a vertical hopper (71) and a horizontal hopper (72). The lower end of the vertical hopper (71) is rotatably connected to the upper shell (1) through a second rotating shaft (6), and the upper end of the vertical hopper (71) is connected to the horizontal hopper (72).

6. The crushing assembly for waste plastic recycling according to claim 1, characterized in that: One end of the crushing mechanism (4) is connected to the drive wheel assembly (17), and the drive wheel assembly (17) is connected to the drive motor (18).

7. The crushing assembly for waste plastic recycling according to claim 1, characterized in that: The inspection door panel (8) is equipped with hinges (19) and handles (20).

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