A crushing and recycling device for waste plastic pipes

Abstract

This utility model relates to the field of plastic pipe recycling technology, specifically a crushing and recycling device for waste plastic pipes. It includes a crusher casing with an inlet hopper and an outlet hopper on its top and bottom surfaces, respectively. Two crushing rollers are rotatably installed inside the crusher casing. A motor housing is fixedly connected to the outer wall of the crusher casing, and a feeding pipe is fixedly connected to the bottom surface of the outlet hopper. In this utility model, a cutting mechanism is included, allowing the cutting blade to cut long plastic pipes into smaller segments, enabling them to better enter the inlet hopper and improving the uniformity and efficiency of crushing. A water storage tank filled with clean water allows the dust from the crushed plastic pipes to fall directly into the water, where it is absorbed, effectively preventing dust dispersion. Through the coordinated arrangement of the crusher casing, water storage tank, annular filter, and conveying mechanism, efficient collection and conveying of plastic fragments are achieved.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe recycling technology, specifically a crushing and recycling device for waste plastic pipes. Background Technology

[0002] The production and use of plastic pipes generate a large amount of waste plastic pipes. If these waste pipes are disposed of haphazardly, it not only wastes resources but also causes serious environmental pollution. Currently, the majority of waste plastic pipe disposal methods involve crushing and recycling. However, existing crushing and recycling equipment has some shortcomings.

[0003] Traditional plastic pipe crushers typically involve directly inserting long plastic pipes into the cutting area. Due to the length of the pipes, they tend to wobble during the crushing process, which can lead to deviation and breakage, potentially causing personal injury to operators. Furthermore, traditional crushers usually discharge plastic fragments directly, generating a large amount of dust during the crushing process. This dust not only pollutes the environment but also harms the health of operators. Utility Model Content

[0004] The purpose of this invention is to provide a crushing and recycling device for waste plastic pipes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A crushing and recycling device for waste plastic pipes, comprising:

[0007] The crusher casing has an inlet hopper and an outlet hopper on its top and bottom surfaces, respectively. Two crushing rollers are rotatably installed inside the crusher casing. A motor housing is fixedly connected to the outer wall of the crusher casing. A feeding pipe is fixedly connected to the bottom surface of the outlet hopper.

[0008] A water storage tank is located below the crusher casing to collect plastic fragments. The crusher casing is mounted on the top surface of the water storage tank. A second motor housing is fixedly connected to the top surface of the water storage tank. The second motor housing contains a first motor and gears. A rectangular groove is provided on the side wall of the water storage tank away from the crusher casing. Two arc-shaped brackets are fixedly connected to the inner top and bottom surfaces of the water storage tank. A water inlet and a water outlet are provided on the side wall of the water storage tank.

[0009] A conveying mechanism 1 is disposed on the top side of the feed hopper, and the conveying mechanism 1 includes an electric conveyor belt 1;

[0010] An annular filter screen is used to retrieve plastic fragments. Its outer wall is rotatably connected to the inner arc surface of the arc-shaped bracket. A toothed ring is fixedly fitted onto the outer wall of the annular filter screen. The toothed ring meshes with a gear for transmission. Several filter plates are fixedly connected to the inner wall of the annular filter screen at equal angles.

[0011] The second conveying mechanism includes an electric conveyor belt, one end of which extends from a rectangular trough into the interior of the water storage tank for conveying the salvaged plastic fragments.

[0012] A cutting mechanism is disposed between the conveying mechanism and the crusher casing. The cutting mechanism includes a base plate fixedly connected to the outer wall of the feed hopper, and a cutting blade is disposed above the base plate.

[0013] Furthermore, the inner arc surface of the arc-shaped bracket is provided with an arc-shaped groove.

[0014] Furthermore, both side walls of the annular filter screen are fixedly connected with annular baffles.

[0015] Furthermore, the outer arc surface of the annular filter screen is fitted with two mating rings, which cooperate with the arc-shaped groove.

[0016] Furthermore, the top surface of the base plate is fixedly connected to two electric telescopic rods, the output ends of the two electric telescopic rods are fixedly connected to the top plate, the top end of the cutting blade is fixedly connected to the bottom surface of the top plate, and the bottom surface of the top plate is fixedly connected to a pressure plate through several elastic telescopic rods. The elastic telescopic rods include a return spring and a relatively sliding square sleeve and square rod.

[0017] Furthermore, the top surface of the base plate is provided with a knife groove.

[0018] Furthermore, the outer wall of the feeding pipe is provided with several round holes.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By setting a cutting mechanism between the conveying mechanism and the feed hopper, the cutting blade can cut the long plastic pipe into small segments, allowing them to enter the feed hopper more effectively. This enables the crushing roller to crush the plastic pipe more evenly, improving the uniformity and efficiency of the crushing process.

[0021] 2. By installing a water storage tank filled with clean water below the discharge hopper, the dust attached to the broken plastic pipes falls directly into the water. The dust is absorbed by the water, effectively preventing the dust from spreading and reducing dust pollution to the environment and harm to the health of operators.

[0022] 3. Through the coordinated arrangement of the crusher casing, water tank, annular filter screen, and conveying mechanism two, the starting motor one, gear and gear ring mesh to drive the rotation of the annular filter screen, and the filter plate pours the preliminarily cleaned plastic fragments onto the electric conveyor belt two, thus achieving efficient collection and conveying of plastic fragments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a crushing and recycling device for waste plastic pipes according to this utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of a crushing and recycling device for waste plastic pipes according to this utility model.

[0025] Figure 3 This is a schematic diagram of the cutting mechanism structure in this utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the water storage tank in this utility model;

[0027] Figure 5 This is a schematic diagram of the annular filter structure in this utility model.

[0028] In the diagram: 100, crusher casing; 110, feed hopper; 120, discharge hopper; 130, crushing roller; 140, feeding pipe; 150, motor housing 1; 200, water storage tank; 210, water inlet; 220, drain outlet; 230, rectangular trough; 240, motor housing 2; 241, motor 1; 242, gear; 250, arc-shaped bracket; 251, arc-shaped trough; 300, conveying mechanism 1; 310, electric conveyor belt 1; 400. Annular filter screen; 410. Filter plate; 420. Toothed ring; 430. Annular baffle; 440. Connecting ring; 500. Conveying mechanism II; 510. Electric conveyor belt II; 600. Cutting mechanism; 610. Base plate; 611. Knife groove; 620. Electric telescopic rod; 630. Top plate; 640. Cutting knife; 650. Elastic telescopic rod; 651. Square sleeve; 652. Square rod; 653. Return spring; 660. Pressure plate. Detailed Implementation

[0029] 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.

[0030] Example

[0031] Please see Figure 1-5 In this embodiment of the present invention, a crushing and recycling device for waste plastic pipes includes a crusher housing 100, a water storage tank 200, a first conveying mechanism 300, an annular filter screen 400, and a second conveying mechanism 500. A feed hopper 110 and a discharge hopper 120 are respectively provided on the top and bottom surfaces of the crusher housing 100. Two relatively rotating crushing rollers 130 are arranged inside the crusher housing 100 below the feed hopper 110. A motor housing 150 is fixedly connected to the outer wall of the crusher housing 100. A second motor, which drives the two crushing rollers 130 respectively, is installed inside the motor housing 150. A feeding pipe 140 is fixedly connected to the bottom surface of the discharge hopper 120. The inner walls of the feed hopper 110 are mutually... Two guide plates, symmetrically fixedly connected and inclined towards the center of the two crushing rollers 130, are provided. A water storage tank 200 is located below the crusher housing 100 to collect plastic fragments. The water storage tank 200 is filled with clean water. The crusher housing 100 is installed on the top surface of the water storage tank 200. The discharge hopper 120 and the feeding pipe 140 are located inside the water storage tank 200. A second motor housing 240 is fixedly connected to the top surface of the water storage tank 200. A first motor 241 is installed inside the second motor housing 240. The motor shaft of the first motor 241 is driven by a gear 242. A rectangular groove 230 is provided on the side wall of the water storage tank 200 away from the crusher housing 100. The inner top and bottom surfaces of the water storage tank 200 are both fixed. The water storage tank 200 has two arc-shaped brackets 250 for fixed connection. A water inlet 210 and a drain outlet 220 are respectively located on the upper and lower sides of the side wall. A conveying mechanism 300 is located on the top side of the feed hopper 110. The conveying mechanism 300 includes an electric conveyor belt 310 for conveying waste plastic pipes into the feed hopper 110. An annular filter screen 400 is located inside the water storage tank 200 for collecting plastic fragments formed after crushing. The lower half of the annular filter screen 400 is immersed in water. The outer wall of the annular filter screen 400 is rotatably connected to the inner arc surface of the arc-shaped brackets 250. A gear ring 420 is fixedly fitted onto the outer wall of the annular filter screen 400. The gear ring 420 meshes with a gear 242 for transmission. Several filter plates 410 are fixedly connected to the inner wall at equal angles. The bottom end of the feeding pipe 140 is inclined towards the inside of the annular filter screen 400. The second conveying mechanism 500 includes an electric conveyor belt 510, which is opposite to the first conveying mechanism 300. One end of the electric conveyor belt 510 extends from the rectangular groove 230 into the water storage tank 200 and is located inside the annular filter screen 400. It is used to transport plastic fragments retrieved by the annular filter screen 400. The cutting mechanism 600 is set between the first conveying mechanism 300 and the crusher housing 100. It is used to cut long plastic pipes into segments. The cutting mechanism 600 includes a base plate 610 fixedly connected to the outer wall of the feed hopper 110. A cutting blade 640 is set above the base plate 610.

[0032] Specifically, during use, clean water is injected into the water storage tank 200 through the water inlet 210. Waste plastic pipes are placed on the electric conveyor belt 310, and the electric conveyor belt 310 is started to transport the plastic pipes to the feed hopper 110. During transport, the cutting blade 640 repeatedly cuts the plastic pipes, breaking the long plastic pipes into several smaller segments. These short plastic pipes are then transported into the feed hopper 110, guided towards the center by the internal guide plate, and fall between the two crushing rollers 130. Subsequently, they are crushed into plastic fragments by the two crushing rollers 130 and fall into the feeding pipe 1 through the discharge hopper 120. Inside the 40, the material enters the interior of the annular filter 400 through the inclined feeding pipe 140 and is submerged in clean water. The dust is absorbed by the water, effectively preventing the dust from scattering. The motor 241 starts and drives the gear 242. The gear 242 meshes with the gear ring 420, causing the annular filter 400 to rotate. As the annular filter 400 rotates, several filter plates 410 inside it will carry the plastic fragments and rotate together. When it rotates to a high position, the plastic fragments fall naturally onto the electric conveyor belt 510 located below due to gravity, and are then transported out by the electric conveyor belt 510 for further processing.

[0033] like Figure 3 As shown, in this embodiment, two electric telescopic rods 620 are fixedly connected to the top surface of the base plate 610, and the output ends of the two electric telescopic rods 620 are fixedly connected to the top plate 630. The top end of the cutting blade 640 is fixedly connected to the bottom surface of the top plate 630. The bottom surface of the top plate 630 is fixedly connected to a pressure plate 660 through several elastic telescopic rods 650. The elastic telescopic rod 650 includes a square sleeve 651. The top end of the square sleeve 651 is fixedly connected to the bottom surface of the top plate 630. A square rod 652 is slidably inserted into the bottom surface of the square sleeve 651. The bottom end of the square rod 652 is fixedly connected to the top surface of the pressure plate 660. A return spring 653 is sleeved on the outer wall of the square sleeve 651. The two ends of the return spring 653 are fixedly connected to the bottom surface of the top plate 630 and the top surface of the pressure plate 660, respectively. A blade groove 611 is opened on the top surface of the base plate 610 at the position corresponding to the cutting blade 640.

[0034] In this embodiment, as the plastic pipe is conveyed along the electric conveyor belt 310, the electric telescopic rod 620 repeatedly extends and retracts, causing the cutting blade 640 to cut the long plastic pipe into multiple small segments. When the electric telescopic rod 620 retracts and drives the top plate 630 to descend, the pressure plate 660 will preferentially contact the pipe under the elastic force of the return spring 653. As the electric telescopic rod 620 descends, the return spring 653 retracts, and the square rod 652 retracts into the square sleeve 651, so that when the cutting blade 640 cuts the plastic pipe, the pressure plate 660 presses on the pipe to position it and prevent the pipe from rolling around during cutting.

[0035] like Figure 4-5As shown, in this embodiment, the inner arc surface of the arc bracket 250 is provided with an arc groove 251, and the two side walls of the annular filter 400 are fixedly connected with annular baffles 430. The outer arc surface of the annular filter 400 is fitted with two mating rings 440, which cooperate with the arc groove 251.

[0036] In practice, the docking ring 440 can rotate along the arc groove 251, which enhances the stability of the structure. The annular baffles 430 on both sides of the annular filter screen 400 are similar in width to the filter plates 410, which enclose both sides of the annular filter screen 400 and form several recessed areas with several filter plates 410 to prevent plastic fragments from being washed out of the annular filter screen 400 by the water flow.

[0037] like Figure 2 As shown, in this embodiment, the outer wall of the feeding pipe 140 has several circular holes.

[0038] In practice, several round holes on the outer wall of the feeding pipe 140 allow clean water in the water storage tank 200 to enter the feeding pipe 140 through the round holes, so that plastic fragments that have not yet entered the annular filter screen 400 can come into contact with clean water in advance, increasing the contact time with clean water.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crushing and recycling device for waste plastic pipes, characterized in that, include: The crusher casing (100) has a feed hopper (110) on its top surface and a discharge hopper (120) on its bottom surface. Two crushing rollers (130) are rotatably installed inside the crusher casing (100). A motor housing (150) is fixedly connected to the outer wall of the crusher casing (100). A feeding pipe (140) is fixedly connected to the bottom surface of the discharge hopper (120). A water storage tank (200) is located below the crusher housing (100) and is used to collect plastic fragments. The crusher housing (100) is installed on the top surface of the water storage tank (200). A motor housing (240) is fixedly connected to the top surface of the water storage tank (200). A motor (241) and a gear (242) are installed inside the motor housing (240). A rectangular groove (230) is opened on the side wall of the water storage tank (200) away from the crusher housing (100). Two arc-shaped brackets (250) are fixedly connected to the inner top and bottom surfaces of the water storage tank (200). A water inlet (210) and a drain outlet (220) are provided on the side wall of the water storage tank (200). A conveying mechanism (300) is disposed on the top side of the feed hopper (110), and the conveying mechanism (300) includes an electric conveyor belt (310); An annular filter screen (400) is used to retrieve plastic fragments. Its outer wall is rotatably connected to the inner arc surface of the arc bracket (250). A toothed ring (420) is sleeved and fixed on the outer wall of the annular filter screen (400). The toothed ring (420) meshes with a gear (242) for transmission. Several filter plates (410) are fixedly connected at equal angles on the inner wall of the annular filter screen (400). The second conveying mechanism (500) includes an electric conveyor belt (510), one end of which extends from the rectangular groove (230) into the water storage tank (200) for conveying the salvaged plastic fragments; A cutting mechanism (600) is disposed between the conveying mechanism (300) and the crusher housing (100). The cutting mechanism (600) includes a base plate (610) fixedly connected to the outer wall of the feed hopper (110), and a cutting blade (640) is disposed above the base plate (610).

2. The crushing and recycling device for waste plastic pipes according to claim 1, characterized in that, The inner arc surface of the arc bracket (250) is provided with an arc groove (251).

3. The crushing and recycling device for waste plastic pipes according to claim 1, characterized in that, Both side walls of the annular filter (400) are fixedly connected with annular baffles (430).

4. The crushing and recycling device for waste plastic pipes according to claim 1 or 3, characterized in that, The outer arc surface of the annular filter screen (400) is fitted with two docking rings (440), which cooperate with the arc groove (251).

5. The crushing and recycling device for waste plastic pipes according to claim 1, characterized in that, Two electric telescopic rods (620) are fixedly connected to the top surface of the base plate (610). The output ends of the two electric telescopic rods (620) are fixedly connected to the top plate (630). The top end of the cutting blade (640) is fixedly connected to the bottom surface of the top plate (630). The bottom surface of the top plate (630) is fixedly connected to a pressure plate (660) through several elastic telescopic rods (650). The elastic telescopic rod (650) includes a return spring (653) and a relatively sliding square sleeve (651) and a square rod (652).

6. The crushing and recycling device for waste plastic pipes according to claim 1 or 5, characterized in that, The top surface of the base plate (610) is provided with a knife groove (611).

7. The crushing and recycling device for waste plastic pipes according to claim 1, characterized in that, The outer wall of the feeding pipe (140) has several round holes.

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