PE pipe defective product recycling and reuse device
By using a combination of a cutting disc and a crushing roller to cut long PE pipes into smaller segments, the problem of insufficient crushing and low efficiency in existing devices when processing long PE pipes is solved, thus achieving efficient recycling and reuse.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI KAISU PLASTIC TECH CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-30
Smart Images

Figure CN224425698U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE pipe production technology, specifically to a device for recycling and reusing defective PE pipes. Background Technology
[0002] In the production of PE pipes, defective products are inevitable. Defective PE pipes are usually crushed into fragments, and then the fragments are granulated into PE granules through a granulation mechanism to achieve the effect of recycling.
[0003] A search revealed a device for crushing and recycling waste materials from PE pipe processing, with publication number CN 219988193 U. This device relates to the field of PE pipe processing waste technology and includes a crushing box. Four equally spaced support legs are fixed at the bottom of the crushing box. A receiving drawer is slidably connected to the bottom of the crushing box. A crushing assembly is located at the top of the crushing box. A feed inlet is located in the middle of the top of the crushing box. A feeding assembly is located at the bottom of the feed inlet. A feeding box is fixed at the top of the feed inlet, and a feeding hopper is fixed at the middle of the top of the feeding box. The beneficial effects of this invention are: by using the feeding assembly, a second motor is started, causing a second rotating shaft to drive a gear to rotate. Under the meshing cooperation of the gear and the first and second racks, the first and second baffle plates reciprocate, reducing the feeding speed; and by using the receiving drawer, after crushing, the handle is pulled to pull the receiving drawer out of the crushing box, facilitating the removal and collection of the crushed waste.
[0004] However, the above-mentioned device still has some shortcomings in its use. During the production of PE pipes, the length of the defective products produced varies. When faced with long defective PE pipes, the device lacks effective pre-treatment measures and cannot cut the long pipes into smaller segments. This may lead to problems such as insufficient crushing and low efficiency in the subsequent crushing process, affecting the recycling and reuse of defective PE pipes. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a device for recycling and reusing defective PE pipes. This device solves the problem that defective PE pipes produced during the production process vary in length. When faced with long defective PE pipes, the device lacks effective pre-treatment measures and cannot cut the long pipes into smaller segments. This leads to problems such as insufficient crushing and low efficiency in the subsequent crushing process, affecting the recycling and reuse of defective PE pipes.
[0006] This utility model provides the following technical solution: a PE pipe defective product recycling and reuse device, including a crushing box, the upper surface of which is provided with a feed inlet, and two crushing rollers are rotatably installed between the two inner side walls of the crushing box;
[0007] A fixed platform is fixedly connected to the upper surface of the crushing box. Multiple slots are formed on the upper surface of the fixed platform. A rotating roller is rotatably installed inside each slot. A support frame is fixedly connected to the upper surface of the crushing box. An electric push rod is fixedly connected to the upper surface of the support frame. The output end of the electric push rod extends to the bottom of the connected support frame and is fixedly installed with a protective cover. A cutting disc is rotatably installed inside the protective cover. A first motor is fixedly installed on the side of the protective cover. The output end of the first motor extends into the interior of the protective cover and is fixedly connected to the cutting disc.
[0008] Preferred technical solution 1: A second motor is fixedly connected to one side of the crushing box, the output end of the second motor extends into the interior of the crushing box and is fixedly connected to one of the crushing rollers, one end of each of the two crushing rollers extends into the exterior of the crushing box and is fixedly connected to a gear, and the two gears mesh with each other.
[0009] Preferred technical solution 2: Two fixing plates are fixedly connected to the upper surface of the fixing platform. A row of movable grooves is opened on the surface of each of the two fixing plates. A limit rod is slidably installed inside each of the movable grooves. A baffle is fixedly connected to one end of each row of limit rods.
[0010] Preferred technical solution 3: Each of the two baffles is rotatably connected to a screw, and a threaded sleeve is threaded between the opposite ends of the two screws. An operating rod is fixedly connected to the surface of the threaded sleeve, and the screws of the two screws are in opposite directions.
[0011] Preferred technical solution four: A protective cover is fixedly installed on one side of the crushing box, and both gears are located inside the protective cover.
[0012] Preferred technical solution five: A discharge port is provided on one side of the crushing box, and a feeding inclined plate is fixedly connected to the inner wall of the crushing box.
[0013] Compared with the prior art, this utility model provides a device for recycling and reusing defective PE pipes, which has the following beneficial effects: In use, the two screws are moved towards or away from each other by rotating the threaded sleeve in the forward or reverse direction, thereby adjusting the distance between the two baffles. Then, the PE pipe to be processed is placed between the two baffles on the fixed platform, and then the PE pipe is pushed so that one end moves under the cutting disc. Then, the extension of the electric push rod drives the protective cover and the cutting disc to move downwards. At the same time, the first motor drives the cutting disc to rotate and cut the PE pipe. The cut PE pipe falls into the crushing box. Then, the electric push rod retracts, causing the cutting disc to return to its original position. It then continues to push the PE pipe to be processed, cutting it into smaller pieces. The cut PE pipes fall into the crushing box, where the rotation of the second motor drives two crushing rollers to crush the cut PE pipes. After crushing, the PE pipes are discharged from the outlet through the guide plate. The crushed PE pipes can then be collected for further processing. This device can cut long PE pipes into smaller sections for easier subsequent crushing and is convenient to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a side view of the structure of this utility model;
[0016] Figure 3 This is a cross-sectional view of the internal structure of the crushing box of this utility model;
[0017] Figure 4 This is an exploded view of the fixed platform structure of this utility model.
[0018] In the diagram: 1. Crushing box; 2. Crushing roller; 3. Fixed platform; 4. Empty trough; 5. Rotating roller; 6. Support frame; 7. Electric push rod; 8. Protective cover; 9. Cutting disc; 10. First motor; 11. Second motor; 12. Gear; 13. Fixed plate; 14. Movable groove; 15. Limiting rod; 16. Baffle; 17. Screw; 18. Threaded sleeve; 19. Protective cover; 20. Discharge port; 21. Feeding inclined plate. Detailed Implementation
[0019] Please see Figure 1-4 ,
[0020] Example 1: A device for recycling and reusing defective PE pipes, including a crushing box 1, with a feed inlet on the upper surface of the crushing box 1, and two crushing rollers 2 rotatably installed between the two inner side walls of the crushing box 1;
[0021] A fixed platform 3 is fixedly connected to the upper surface of the crushing box 1. Multiple slots 4 are opened on the upper surface of the fixed platform 3. A rotating roller 5 is rotatably installed inside each slot 4. A support frame 6 is fixedly connected to the upper surface of the crushing box 1. An electric push rod 7 is fixedly connected to the upper surface of the support frame 6. The output end of the electric push rod 7 extends to the bottom of the connected support frame 6 and is fixedly installed with a protective cover 8. A cutting disc 9 is rotatably installed inside the protective cover 8. A first motor 10 is fixedly installed on the side of the protective cover 8. The output end of the first motor 10 extends to the inside of the protective cover 8 and is fixedly connected to the cutting disc 9.
[0022] Example 2: The difference between this example and Example 1 is that a second motor 11 is fixedly connected to one side of the crushing box 1. The output end of the second motor 11 extends into the interior of the crushing box 1 and is fixedly connected to one of the crushing rollers 2. One end of each of the two crushing rollers 2 extends into the exterior of the crushing box 1 and is fixedly connected to a gear 12. The two gears 12 mesh with each other. The rotation of the second motor 11 can drive the crushing rollers 2 to quickly crush the PE pipe.
[0023] Example 3: The difference between this example and Example 1 is that two fixed plates 13 are fixedly connected to the upper surface of the fixed platform 3. A row of movable grooves 14 is opened on the surface of each fixed plate 13. A limit rod 15 is slidably installed inside each movable groove 14. A baffle 16 is fixedly connected to the opposite end of each row of limit rods 15 to facilitate the limiting of the PE pipe to be processed.
[0024] Example 4: The difference between this example and Example 1 is that screws 17 are rotatably connected to the opposite sides of the two baffles 16, and threaded sleeves 18 are threadedly connected between the opposite ends of the two screws 17. An operating rod is fixedly connected to the surface of the threaded sleeve 18. The screws 17 have opposite directions, which facilitates the adjustment of the distance between the two baffles 16 and is suitable for PE pipes of different diameters.
[0025] Example 5: The difference between this example and Example 1 is that a protective cover 19 is fixedly installed on one side of the crushing box 1, and both gears 12 are located inside the protective cover 19, which facilitates the protection of the gears 12 and prevents accidental contact by personnel.
[0026] Example 6: The difference between this example and Example 1 is that a discharge port 20 is provided on one side of the crushing box 1, and a feeding inclined plate 21 is fixedly connected to the inner wall of the crushing box 1 to facilitate the discharge of the crushed PE pipe.
[0027] In summary, this PE pipe defective product recycling and reuse device works by rotating the threaded sleeve 18 in the forward or reverse direction to move the two screws 17 towards or away from each other, thereby adjusting the distance between the two baffles 16. The PE pipe to be processed is then placed between the two baffles 16 on the fixed platform 3. The PE pipe is then pushed so that one end moves below the cutting disc 9. The extension of the electric push rod 7 moves the protective cover 8 and the cutting disc 9 downwards. Simultaneously, the first motor 10 drives the cutting disc 9 to rotate and cut the PE pipe. The cut PE pipe falls into the crushing box 1, and then the electric push rod... The retraction of rod 7 causes the cutting disc 9 to return to its original position, and then continues to push the PE pipe to be processed, cutting it into smaller pieces. The cut PE pipe falls into the crushing box 1, and the rotation of the second motor 11 drives the two crushing rollers 2 to rotate, crushing the cut PE pipe. The crushed PE pipe is then guided by the feed inlet 21 and discharged from the outlet 20. The crushed PE pipe can then be collected for further processing. This device can cut long PE pipes into smaller pieces for easier subsequent crushing and is convenient to use.
Claims
1. A PE pipe defective product recycling device, comprising a crushing box (1), characterized in that: The upper surface of the crushing box (1) is provided with a feed inlet, and two crushing rollers (2) are rotatably installed between the two inner side walls of the crushing box (1). A fixed platform (3) is fixedly connected to the upper surface of the crushing box (1). Multiple slots (4) are opened on the upper surface of the fixed platform (3). A rotating roller (5) is rotatably installed inside each slot (4). A support frame (6) is fixedly connected to the upper surface of the crushing box (1). An electric push rod (7) is fixedly connected to the upper surface of the support frame (6). The output end of the electric push rod (7) extends to the bottom of the connected support frame (6) and is fixedly installed with a protective cover (8). A cutting disc (9) is rotatably installed inside the protective cover (8). A first motor (10) is fixedly installed on the side of the protective cover (8). The output end of the first motor (10) extends to the inside of the protective cover (8) and is fixedly connected to the cutting disc (9).
2. The PE pipe defective product recycling device according to claim 1, characterized in that: A second motor (11) is fixedly connected to one side of the crushing box (1). The output end of the second motor (11) extends into the interior of the crushing box (1) and is fixedly connected to one of the crushing rollers (2). One end of each of the two crushing rollers (2) extends to the exterior of the crushing box (1) and is fixedly connected to a gear (12). The two gears (12) mesh with each other.
3. The PE pipe scrap recycling device according to claim 1, characterized in that: The upper surface of the fixed platform (3) is fixedly connected to two fixed plates (13). A row of movable grooves (14) is opened on the surface of each of the two fixed plates (13). A limit rod (15) is slidably installed inside each of the movable grooves (14). A baffle (16) is fixedly connected to one end of each of the two rows of limit rods (15).
4. The PE pipe scrap recycling device according to claim 3, characterized in that: Both of the two baffles (16) are rotatably connected to the opposite sides of each other. A threaded sleeve (18) is threaded between the opposite ends of the two screws (17). An operating rod is fixedly connected to the surface of the threaded sleeve (18). The screw directions of the two screws (17) are opposite.
5. The PE pipe defective product recycling and reuse device according to claim 2, characterized in that: A protective cover (19) is fixedly installed on one side of the crushing box (1), and both gears (12) are located inside the protective cover (19).
6. The PE pipe defective product recycling and reuse device according to claim 1, characterized in that: The crushing box (1) has a discharge port (20) on one side, and the inner wall of the crushing box (1) is fixedly connected with a feeding inclined plate (21).