A plastic recycling device

By using the pressing and crushing mechanisms of the plastic recycling device, the problem of low crushing efficiency caused by the large volume of waste plastics has been solved, and efficient production of recycled plastic pellets has been achieved.

CN116653166BActive Publication Date: 2025-11-14CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202310828347.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-07
Publication Date
2025-11-14
Estimated Expiration
2043-07-07

AI Technical Summary

Technical Problem

In the process of plastic recycling, the large volume of waste plastics leads to low crushing efficiency.

Method used

A plastic recycling device is used, which utilizes a pressing mechanism to compress plastic by means of the coordinated movement of a first pressing block and a second pressing block to reduce the volume of the plastic. Combined with crushing blades and a heating mechanism, the plastic is processed to achieve efficient crushing and melting.

Benefits of technology

It improves the crushing efficiency of plastics and transforms plastics into usable recycled pellets through extrusion and heating steps, achieving efficient recycling of resources.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116653166B_ABST
    Figure CN116653166B_ABST
Patent Text Reader

Abstract

This invention relates to the field of plastic recycling, specifically disclosing a plastic recycling device, including a crushing support frame. The upper surface of the crushing support frame has a crushing chamber, and a pressing mechanism is disposed above a supporting slide plate. The pressing mechanism includes a first pressing block and a second pressing block. A pressure plate is mounted on one end of each of the first and second pressing blocks. A reciprocating slide plate is mounted on the outer side of the pressure plate. A gear groove is formed on the upper surface of the reciprocating slide plate, and an internal rack is disposed on the inner side wall of the reciprocating slide plate. An incomplete gear is disposed on the inner side of the internal rack, and a drive motor is mounted below the incomplete gear at the lower end of the supporting slide plate. The internal rack inside the reciprocating slide plate moves in conjunction with the incomplete gear. The falling plastic is blocked by a support structure composed of multiple supporting guide rods. As the first and second pressing blocks approach each other, they are squeezed and contracted by the pressure plate, reducing their volume and ensuring efficient subsequent crushing.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of plastic recycling, specifically a plastic recycling device. Background Technology

[0002] The processing of waste plastics generates a large amount of pollutants. Recycling waste plastics to produce recycled plastic pellets is a major advancement in waste plastic recycling technology. Using specialized pelletizing equipment, waste polyethylene, polypropylene, and other plastics can be processed into marketable recycled pellets through crushing, washing, heating and plasticizing, and extrusion molding processes. Compared with simple landfill and incineration, recycled plastic pellets can be reused as raw materials in the plastics industry, achieving true resource recycling.

[0003] However, because waste plastics have a large volume but low weight in plastic recycling, the crushing efficiency of plastic parts is low during crushing. Summary of the Invention

[0004] To address the existing problems, the present invention provides a plastic recycling device that, when used in conjunction with other devices, can effectively solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A plastic recycling device includes a crushing support, a pressing chamber on the upper surface of the crushing support, a crushing chamber at the upper end of the pressing chamber, a supporting slide plate installed inside the crushing chamber, and a pressing mechanism above the supporting slide plate. The pressing mechanism includes a first pressing block and a second pressing block. A pressure plate is installed above one end of both the first and second pressing blocks. A reciprocating slide plate is installed on the outer side of the pressure plate. A gear groove is formed on the upper surface of the reciprocating slide plate. An internal rack is provided on the inner side wall of the reciprocating slide plate. An incomplete gear is provided on the inner side of the internal rack. A drive motor is installed below the incomplete gear at the lower end of the supporting slide plate. A guide groove is formed on the upper surface of the supporting slide plate below the reciprocating slide plate. Supporting guide rods are arranged in an array on the side of the first and second pressing blocks away from the reciprocating slide plate. Guide rod through holes are arranged in an array between two adjacent supporting guide rods inside the pressure plate.

[0007] As a further embodiment of the present invention: a lateral movement through hole is provided above the support slide plate on the outside of the pressing chamber; a discharge port is installed on the upper surface of the pressing chamber; a crushing chamber is installed at the lower end of the pressing chamber; a crushing blade is installed inside the crushing chamber; a driving mechanism is provided above the crushing bracket on the side away from the pressing chamber; and a driving coupling is connected between the driving mechanism and the crushing blade.

[0008] As a further embodiment of the present invention: a receiving bin is provided directly below the crushing bin and below the crushing support, a feeding pipe is installed on one side of the receiving bin, and a collection bin is provided below one side of the feeding pipe.

[0009] As a further embodiment of the present invention: a spiral feeding rod is installed inside the feeding pipe, an extrusion screen is installed on the side of the spiral feeding rod near the collection bin, and an inlet is installed above the feeding pipe inside the receiving bin.

[0010] As a further embodiment of the present invention: the incomplete gear meshes with the internal rack, the lower end of the incomplete gear is equipped with a movable shaft inside the gear groove, and the reciprocating slide plate is slidably connected to the lateral moving through hole.

[0011] As a further embodiment of the present invention: the inner diameter of the guide rod through hole is greater than the outer diameter of the supporting guide rod, the reciprocating slide plate is fixedly connected to both the first pressing block and the second pressing block, and the inside of the supporting slide plate is provided with a material discharge through hole.

[0012] As a further embodiment of the present invention: the inner diameter of the side-moving perforation is greater than the outer diameter of the reciprocating slide plate, the crushing chamber and the pressing chamber are connected in a continuous manner, and the crushing cutter is fixedly connected to the drive shaft.

[0013] As a further embodiment of the present invention: a filter screen is installed inside the collection bin, and a heating mechanism is provided inside the receiving bin.

[0014] As a further embodiment of the present invention: the extrusion screen is fixedly connected to the feeding pipe, the spiral feeding rod is connected to a rotating shaft at the end located away from the collection bin, and the feed inlet is connected through the feeding pipe.

[0015] As a further aspect of the present invention: the drive motor drives the incomplete gear to rotate via a rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The internal rack inside the reciprocating slide moves in rotation with the incomplete gear. The first and second pressing blocks slide in the guide groove opened on the upper surface of the supporting slide. The falling plastic is blocked by the support composed of multiple supporting guide rods. When the first and second pressing blocks approach each other, they are squeezed and contracted by the pressing plate, resulting in a smaller volume, which ensures the efficiency of subsequent crushing.

[0018] 2. After the cut and crushed plastic falls into the inside of the receiving hopper, it is heated and melted by the heating mechanism and then fed into the feed inlet. The spiral feed rod inside the feed pipe drives the melted plastic to be agitated and then passes through the holes of the extrusion screen into the collection hopper where it is cooled and collected.

[0019] 3. The first and second pressing blocks will move in opposite directions as a whole. Then, the cross support guide rods will open and the compressed plastic will fall into the through hole in the middle of the support slide plate, which can realize the cyclical work of squeezing and dropping waste plastic.

[0020] 4. The guide rod through holes opened on the first and second pressing blocks and the guide rod insertion and withdrawal function, the falling plastic is blocked by the support composed of multiple support guide rods, and the material is discharged after extrusion. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a plastic recycling device.

[0022] Figure 2 This is a schematic diagram of the internal structure of the compression chamber in a plastic recycling device.

[0023] Figure 3 This is a schematic diagram of the pressing mechanism in a plastic recycling device.

[0024] Figure 4 This is a schematic diagram of the structure of the second pressing block in a plastic recycling device;

[0025] Figure 5 This is a schematic diagram of the internal structure of the compression chamber in a plastic recycling device.

[0026] Figure 6 This is a schematic diagram of the internal structure of the feeding pipe in a plastic recycling device.

[0027] In the diagram: 1. Crushing support; 2. Drive mechanism; 3. Pressing chamber; 4. Discharge port; 5. Receiving chamber; 6. Feeding pipe; 7. Collection chamber; 8. Crushing chamber; 301. Side moving perforation; 302. Pressing mechanism; 303. Support slide plate; 304. First pressing block; 305. Second pressing block; 306. Reciprocating slide plate; 307. Internal rack; 308. Incomplete gear; 309. Pressing plate; 310. Drive motor; 311. Guide rod perforation; 312. Supporting guide rod; 313. Guide groove; 314. Gear groove; 601. Spiral feed rod; 602. Extrusion screen; 603. Feed port; 801. Crushing cutter; 802. Drive shaft. Detailed Implementation

[0028] The present invention will be further described below with reference to specific inventions. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0029] In the description of this specification, references to terms such as "this embodiment," "some embodiments," "example," "specific example," or "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example, and the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] like Figure 1-6 As shown, this embodiment provides a plastic recycling device, including a crushing support 1. The upper surface of the crushing support 1 has a crushing chamber 8, and the upper end of the crushing chamber 8 is provided with a pressing chamber 3. A support slide plate 303 is installed inside the pressing chamber 3. The inside of the support slide plate 303 is provided with a material discharge through hole. A pressing mechanism 302 is provided above the support slide plate 303. The pressing mechanism 302 includes: a first pressing block 304 and a second pressing block 305. A pressing plate 309 is installed above one end of the first pressing block 304 and the second pressing block 305. A reciprocating slide plate 306 is installed on the outer side of the pressing plate 309. The reciprocating slide plate 306 is slidably connected to a side moving through hole 301. A gear groove 314 is provided on the upper surface of the reciprocating slide plate 306. The reciprocating slide plate 306 is fixedly connected to both the first pressing block 304 and the second pressing block 305. The inner sidewall of the reciprocating slide plate 306 is provided with... An internal rack 307 is provided, and an incomplete gear 308 is provided on the inner side of the internal rack 307. The incomplete gear 308 meshes with the internal rack 307. A drive motor 310 is installed below the incomplete gear 308 at the lower end of the support slide plate 303. The drive motor 310 drives the incomplete gear 308 to rotate through a rotating shaft. A movable shaft is installed at the lower end of the incomplete gear 308 inside the gear slide groove 314. A guide slide groove 313 is provided below the reciprocating slide plate 306 on the upper surface of the support slide plate 303. A first pressing block 304 and a second pressing block 305 are arranged in an array on the side away from the reciprocating slide plate 306, and a support guide rod 312 is arranged in an array between two adjacent support guide rods 312 inside the pressure plate 309. The inner diameter of the guide rod through hole 311 is longer than the outer diameter of the support guide rod 312.

[0031] like Figure 2-5As shown, in this embodiment, a side-moving through hole 301 is provided above the support slide plate 303 on the outside of the pressing chamber 3. The inner diameter of the side-moving through hole 301 is greater than the outer diameter of the reciprocating slide plate 306. A discharge port 4 is installed on the upper surface of the pressing chamber 3. A crushing chamber 8 is installed at the lower end of the pressing chamber 3. The pressing chamber 3 and the crushing chamber 8 are connected. A crushing blade 801 is installed inside the crushing chamber 8. A drive mechanism 2 is provided above the crushing support 1 on the side away from the pressing chamber 3. A drive shaft 802 is connected between the drive mechanism 2 and the crushing blade 801. The crushing blade 801 and the drive shaft 802 are fixedly connected. A receiving chamber 5 is provided directly below the crushing chamber 8 and below the crushing support 1. A heating mechanism is provided inside the receiving chamber 5.

[0032] like Figure 2-6 As shown, in this embodiment, a feeding pipe 6 is installed on one side of the receiving bin 5, and a collection bin 7 is located below one side of the feeding pipe 6. A filter screen is installed inside the collection bin 7. A spiral feeding rod 601 is installed inside the feeding pipe 6. A rotating shaft is connected to the spiral feeding rod 601 on the side away from the collection bin 7. An extrusion screen 602 is installed on the side of the spiral feeding rod 601 close to the collection bin 7. The extrusion screen 602 is fixedly connected to the feeding pipe 6. An inlet 603 is installed above the feeding pipe 6 inside the receiving bin 5, and the inlet 603 is connected through the feeding pipe 6.

[0033] The working principle of this invention is as follows: During use, the processed and sorted plastic is poured from the discharge port 4 into the pressing chamber 3. By activating two drive motors 310 at the same rotation frequency, the incomplete gears 308 inside the first pressing block 304 and the second pressing block 305 are also at the same rotation frequency. This controls the internal rack 307 inside the reciprocating slide plate 306 to move under the interaction with the incomplete gears 308. The shaft driving the rotation of the incomplete gears 308 will be in the gear groove 314. During movement, the first pressing block 304 and the second pressing block 305 slide in the guide groove 313 on the upper surface of the supporting slide plate 303, allowing control of the reciprocating movement of the first pressing block 304 and the second pressing block 305. The guide rod through holes 311 and the supporting guide rods 312 on the first pressing block 304 and the second pressing block 305 engage in insertion and withdrawal. The falling plastic is shielded by the support structure composed of multiple supporting guide rods 312. When the first pressing block 304 and the second pressing block 305... 5. During the process of moving closer together, the pressure plate 309 compresses and shrinks the plastic, causing it to shrink in volume. After the first pressing block 304 and the second pressing block 305 move to their closest position, they will move in opposite directions as a whole. At this time, the crossed support guide rod 312 will open, and the compressed plastic will fall into the through hole in the middle of the support slide plate 303. The reciprocating slide plate 306 provided on the first pressing block 304 and the second pressing block 305 can then pass through the pressing chamber 3. The plastic passes through the side-moving perforation 301. After the plastic falls into the crushing chamber 8, the drive mechanism 2 drives the drive shaft 802 to rotate the crushing blade 801 to crush and cut the plastic. The crushed plastic falls into the receiving chamber 5 and is heated and melted by the heating mechanism before being fed into the feed inlet 603. The spiral feed rod 601 inside the feed pipe 6 drives the melted plastic to be agitated and then passes through the holes of the extrusion screen 602 and enters the collection chamber 7 to be cooled and collected.

[0034] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0036] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plastic recycling device, comprising a crushing support (1), characterized in that, The crushing support (1) has a crushing chamber (8) on its upper surface. A pressing chamber (3) is provided at the upper end of the crushing chamber (8). A support slide plate (303) is installed inside the pressing chamber (3). A pressing mechanism (302) is provided above the support slide plate (303). The pressing mechanism (302) includes: a first pressing block (304) and a second pressing block (305). A pressing plate (309) is installed above one end of both the first pressing block (304) and the second pressing block (305). A reciprocating slide plate (306) is installed on the outer side of the pressing plate (309). A gear groove (314) is provided on the upper surface of the reciprocating slide plate (306). An internal rack (307) is provided on the inner side wall of the plate (303), and an incomplete gear (308) is provided on the inner side of the internal rack (307). A drive motor (310) is installed below the incomplete gear (308) at the lower end of the support plate (303). A guide groove (313) is provided below the reciprocating plate (306) on the upper surface of the support plate (303). A support guide rod (312) is arranged in an array on the side away from the reciprocating plate (306) of the first pressing block (304) and the second pressing block (305). A guide rod through hole (311) is arranged in an array between two adjacent support guide rods (312) inside the pressure plate (309). The inner diameter of the guide rod through hole (311) is greater than the outer diameter of the supporting guide rod (312). The reciprocating slide plate (306) is fixedly connected to the first pressing block (304) and the second pressing block (305). The support slide plate (303) has a material dropping through hole inside.

2. The plastic recycling device according to claim 1, characterized in that, A side-moving perforation (301) is provided above the support slide plate (303) on the outside of the pressing chamber (3). A discharge port (4) is installed on the upper surface of the pressing chamber (3). A crushing chamber (8) is installed at the lower end of the pressing chamber (3). A crushing blade (801) is installed inside the crushing chamber (8). A driving mechanism (2) is provided above the crushing bracket (1) on the side away from the pressing chamber (3). A driving shaft (802) is connected between the driving mechanism (2) and the crushing blade (801).

3. The plastic recycling device according to claim 1, characterized in that, A receiving bin (5) is provided directly below the crushing bin (8) and below the crushing support (1). A feeding pipe (6) is installed on one side of the receiving bin (5), and a collection bin (7) is provided below one side of the feeding pipe (6).

4. A plastic recycling device according to claim 3, characterized in that, The feed pipe (6) is equipped with a spiral feed rod (601), and an extrusion screen plate (602) is installed on the side end of the spiral feed rod (601) near the collection bin (7). The feed pipe (6) is equipped with an inlet (603) above the receiving bin (5).

5. A plastic recycling device according to claim 2, characterized in that, The incomplete gear (308) meshes with the internal rack (307), and the lower end of the incomplete gear (308) is located inside the gear groove (314) and a movable shaft is installed thereon. The reciprocating slide plate (306) is slidably connected to the side moving through hole (301).

6. A plastic recycling device according to claim 2, characterized in that, The inner diameter of the side-moving perforation (301) is greater than the outer diameter of the reciprocating slide plate (306). The pressing chamber (3) and the crushing chamber (8) are connected in a continuous manner. The crushing cutter (801) is fixedly connected to the drive shaft (802).

7. A plastic recycling device according to claim 3, characterized in that, The collection bin (7) is equipped with a filter screen, and the receiving bin (5) is equipped with a heating mechanism.

8. A plastic recycling device according to claim 4, characterized in that, The extrusion screen (602) is fixedly connected to the feeding pipe (6), the spiral feed rod (601) is located on the side away from the collection bin (7) and is connected to a rotating shaft, and the feed port (603) is connected to the feeding pipe (6).

9. A plastic recycling device according to claim 1, characterized in that, The drive motor (310) drives the incomplete gear (308) to rotate via a rotating shaft.

Citation Information

Patent Citations

  • Crushing device for recycling waste marble floors

    CN111905867A

  • Plastic product production line waste recycling device

    CN212385776U

  • Waste plastic processing, recycling and regenerating device

    CN212653719U

  • Banana plant high-temperature extraction device

    CN212731124U