A plastic pipe processing twin screw extruder

Abstract

The utility model relates to the technical field of plastic pipeline production, especially a kind of plastic pipeline processing double-screw extruder, including frame;Still including machine barrel, several machine barrels are fixedly connected on rack, adjacent machine barrel is connected by bolt, machine barrel end bolt connection has blanking barrel, fast connecting support is fixedly connected on machine barrel top, sealing assembly is connected on fast connecting support, selection control component is fixedly connected on rack, and selection control component's output end is connected with fast connecting component;The utility model is connected by multiple machine barrels, meanwhile, multiple fast connecting supports are equipped on multiple machine barrels, then the rapid switching of real-time channel using multiple components, the modularization of device is realized, it is very convenient for subsequent local cleaning and maintenance, greatly improve work efficiency, while can be more maintenance and cleaning condition, flexible adjustment is carried out to blanking passage, can adapt to multiple process flows, and the quality of product produced is better.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe production technology, and in particular to a twin-screw extruder for processing plastic pipes. Background Technology

[0002] The twin-screw extruder for plastic pipe processing is an industrial equipment specifically designed for producing plastic pipes. Its core components are two parallel, meshing or non-meshing screws that rotate and propel the raw material, melting and plasticizing it before molding it into various types of pipes. This equipment offers advantages such as efficient mixing, stable extrusion, and energy saving. It is suitable for manufacturing products such as water supply and drainage pipes, gas pipes, and cable sheathing pipes, and is widely used in construction, municipal engineering, agriculture, and other fields. Its twin-screw design can effectively process fillers and recycled materials, ensuring the uniformity and strength of the pipes. It is the core equipment for modern continuous production of plastic pipes.

[0003] In traditional plastic pipe processing, twin-screw extruders typically use a single feeding channel, which does not allow for individual component disassembly and replacement. The entire extruder must be disassembled for cleaning, a cumbersome and time-consuming process. Each cleaning cycle can result in downtime of several hours, significantly reducing equipment utilization and drastically increasing maintenance costs and downtime. Furthermore, the single-channel structure limits production flexibility and process adaptability, leading to substandard mechanical properties of recycled materials and making it difficult to achieve high-value utilization.

[0004] Therefore, in response to the problems of traditional twin-screw extruders for plastic pipe processing having a single feeding channel, making it impossible to disassemble and replace components individually, resulting in soaring maintenance costs and downtime, and limiting production flexibility and process adaptability, a modular, multi-channel, and rapidly switchable twin-screw extruder for plastic pipe processing can be designed to solve these problems. Utility Model Content

[0005] To overcome the problems of traditional twin-screw extruders for plastic pipe processing having a single feeding channel, which prevents individual component disassembly and replacement, leading to soaring maintenance costs and downtime, and limited production flexibility and process adaptability.

[0006] The technical solution of this utility model is as follows: a twin-screw extruder for processing plastic pipes, including a frame; and also including barrels, with several barrels fixedly connected to the frame, adjacent barrels being connected by bolts, a feed barrel being bolted to the end of the barrel, a quick-connect support being fixedly connected above the barrel, a sealing component being connected to the quick-connect support, a selection control component being fixedly connected to the frame, the output end of the selection control component being connected to the quick-connect component, the selection control component being used to drive the quick-connect component to perform horizontal linear motion, a feed hopper being fixedly connected to the output end of the quick-connect component, the quick-connect component being used to drive the feed hopper to perform vertical linear motion, the feed hopper and the quick-connect support being movably connected, and a connecting pipe being fixedly connected above the feed hopper.

[0007] Preferably, when quickly switching the feeding channel, the raw material to be produced is fed into the connecting pipe. The selection control component outputs power to the quick-connect component, which moves the quick-connect component towards the designated quick-connect support. Then, the quick-connect component moves the feeding hopper towards the quick-connect support until the feeding hopper is fully installed on the quick-connect support. Then, the sealing component is opened to connect the feeding hopper and the barrel, allowing the connecting pipe to convey material into the barrel for extrusion until the material is discharged from the feeding cylinder.

[0008] Preferably, the sealing assembly includes a hydraulic cylinder, a hydraulic rod, and a sealing plate. The hydraulic cylinder is fixedly connected to the barrel, and the output end of the hydraulic cylinder is fixedly connected to the hydraulic rod. The hydraulic cylinder is used to push the hydraulic rod to perform linear motion. The other end of the hydraulic rod is fixedly connected to the sealing plate, and the sealing plate is slidably connected to the quick-connect support.

[0009] Preferably, the control component includes a first track, a first motor, a first threaded rod, and a slide rod. The first track is fixedly connected to the frame, the first motor is fixedly connected to the first track, the output end of the first motor is fixedly connected to the first threaded rod, the first motor is used to drive the first threaded rod to rotate, the first threaded rod is rotatably connected to the first track, the slide rod is threadedly connected to the first threaded rod, and the other end of the slide rod is fixedly connected to a quick-connect assembly.

[0010] Preferably, the quick-connect assembly includes a second track, a second motor, a second threaded rod, and a mounting frame. The second track is fixedly connected to the slide bar, the second motor is fixedly connected to the second track, the output end of the second motor is fixedly connected to the second threaded rod, the second motor is used to drive the second threaded rod to rotate, the second threaded rod is rotatably connected to the second track, the mounting frame is threadedly connected to the second threaded rod, and the mounting frame is fixedly connected to the feeding hopper.

[0011] Preferably, a drive assembly is fixedly connected to the frame, and two screw bodies are fixedly connected to the output end of the drive assembly. The drive assembly is used to drive the screw bodies to rotate, and a sealed bearing is fixedly connected to the screw body. The sealed bearing is fixedly connected to the barrel.

[0012] Preferably, the drive assembly includes a third motor, a drive shaft, a first gear, and a second gear. The third motor is fixedly connected to the frame, and the output end of the third motor is fixedly connected to the drive shaft. The other end of the drive shaft is fixedly connected to the first gear, and the second gear is meshed with one side of the first gear. Both the first gear and the second gear are fixedly connected to the screw body.

[0013] Preferably, the barrel has a conveying channel at its center, the screw body is rotatably connected to the conveying channel, and several heating pipes are provided on the outside of the conveying channel.

[0014] The beneficial effects of this utility model are:

[0015] By connecting multiple barrels and equipping them with multiple quick-connect supports, and by enabling rapid switching of multiple component channels in real time, the device achieves modularity. This makes subsequent local cleaning and maintenance very convenient, eliminating the need for complete machine disassembly, greatly improving work efficiency. It also allows for better maintenance and cleaning, flexible adjustment of the material feeding channel, adaptability to various process flows, and better product quality. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model.

[0017] Figure 2 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the structure of the drive component of this utility model.

[0019] Figure 4 The diagram shown is a cross-sectional view of the barrel structure of this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the feeding hopper structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Barrel; 201. Conveying channel; 202. Heating pipe; 3. Feeding cylinder; 4. Quick-connect support; 501. Hydraulic cylinder; 502. Hydraulic rod; 503. Sealing plate; 601. First track; 602. First motor; 603. First threaded rod; 604. Slide rod; 701. Second track; 702. Second motor; 703. Second threaded rod; 704. Mounting frame; 8. Feeding hopper; 9. Connecting pipe; 1001. Third motor; 1002. Drive shaft; 1003. First gear; 1004. Second gear; 11. Screw body; 12. Sealed bearing. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment: a twin-screw extruder for processing plastic pipes, including a frame 1; and barrels 2. A plurality of barrels 2 are fixedly connected to the frame 1, adjacent barrels 2 are connected by bolts, and a feed cylinder 3 is bolted to the end of each barrel 2. A quick-connect support 4 is fixedly connected above each barrel 2, and a sealing component is connected to the quick-connect support 4. A selection control component is fixedly connected to the frame 1, and the output end of the selection control component is connected to the quick-connect component. The selection control component drives the quick-connect component to perform horizontal linear motion. A feed hopper 8 is fixedly connected to the output end of the quick-connect component, and the quick-connect component drives the feed hopper 8 to feed... The feed hopper 8 and quick-connect support 4 are movably connected in a vertical linear motion. A connecting pipe 9 is fixedly connected above the feed hopper 8. When quickly switching the feeding channel, the raw material to be produced is fed into the connecting pipe 9. The selection control component outputs power to the quick-connect component, which moves the quick-connect component towards the designated quick-connect support 4. Then, the quick-connect component moves the feed hopper 8 towards the quick-connect support 4 until the feed hopper 8 is fully installed on the quick-connect support 4. Then, the sealing component is opened to connect the feed hopper 8 and the barrel 2, allowing the connecting pipe 9 to convey material into the barrel 2 for extrusion until the material is discharged from the discharge cylinder 3.

[0024] Please see Figures 1-5In this embodiment, the sealing assembly includes a hydraulic cylinder 501, a hydraulic rod 502, and a sealing plate 503. The hydraulic cylinder 501 is fixedly connected to the barrel 2, and the output end of the hydraulic cylinder 501 is fixedly connected to the hydraulic rod 502. The hydraulic cylinder 501 is used to push the hydraulic rod 502 to move linearly. The other end of the hydraulic rod 502 is fixedly connected to the sealing plate 503, and the sealing plate 503 is slidably connected to the quick-connect support 4. When raw material production is carried out, the hydraulic cylinder 501 outputs pressure to the hydraulic rod 502, pushing the hydraulic rod 502 to move linearly, thereby driving the sealing plate 503 to move on the quick-connect support 4. The sliding mechanism opens the feeding channel of the quick-connect support 4, enabling rapid opening and closing of the feeding channel. The control components include a first track 601, a first motor 602, a first threaded rod 603, and a slide rod 604. The first track 601 is fixedly connected to the frame 1. The first motor 602 is fixedly connected to the first track 601. The output end of the first motor 602 is fixedly connected to the first threaded rod 603, which drives the first threaded rod 603 to rotate. The first threaded rod 603 is rotatably connected to the first track 601. The slide rod 604 is threadedly connected to the first threaded rod 601. On the 03, the other end of the slide rod 604 is fixedly connected to the quick-connect assembly. The first motor 602 outputs torque to the first threaded rod 603, causing the first threaded rod 603 to rotate on the first track 601. This, in turn, drives the slide rod 604, which is threaded onto the first threaded rod 603, to move linearly, moving the quick-connect assembly above the designated quick-connect support 4. The quick-connect assembly includes a second track 701, a second motor 702, a second threaded rod 703, and a mounting frame 704. The second track 701 is fixedly connected to the slide rod 604, and the second motor 702 is fixedly connected to the second track 701. The output end of the second motor 702 is fixedly connected to the second threaded rod 703. The second motor 702 is used to drive the second threaded rod 703 to rotate. The second threaded rod 703 is rotatably connected to the second track 701. The mounting frame 704 is threadedly connected to the second threaded rod 703. The mounting frame 704 and the feeding hopper 8 are fixedly connected. The second motor 702 outputs torque to the second threaded rod 703, causing the second threaded rod 703 to rotate on the second track 701, which drives the mounting frame 704 to move linearly on the second threaded rod 703, so that the feeding hopper 8 can be quickly installed on the quick-connect support 4.

[0025] Please see Figures 1-4In this embodiment, a drive assembly is fixedly connected to the frame 1. Two screw bodies 11 are fixedly connected to the output end of the drive assembly. The drive assembly drives the screw bodies 11 to rotate. Sealed bearings 12 are fixedly connected to the screw bodies 11 and to the barrel 2. The drive assembly outputs power to the two screw bodies 11, causing them to rotate in parallel meshing to complete the material extrusion process. Simultaneously, the sealed bearings 12 ensure the device's sealing and prevent motion interference. The drive assembly includes a third motor 1001, a drive shaft 1002, a first gear 1003, and a second gear 1004. The third motor 1001 is fixedly connected to the frame 1. The output end of the third motor 1001 is fixedly connected to the drive shaft 1002. The other end of the drive shaft 1002 is fixedly connected to the first gear 1003. The second gear 1004... 4. The first gear 1003 and the second gear 1004 are meshed and connected to one side of the screw body 11. The third motor 1001 outputs torque to the drive shaft 1002, causing the drive shaft 1002 to rotate, which in turn drives the first gear 1003 to rotate. This drives the second gear 1004 meshed on one side of the first gear 1003 to rotate synchronously. The first gear 1003 drives one screw body 11 to rotate, while the second gear 1004 drives the other screw body 11 to rotate. The barrel 2 has a conveying channel 201 at its center. The screw body 11 is rotatably connected to the conveying channel 201. Several heating pipes 202 are provided on the outside of the conveying channel 201. The two screw bodies 11 rotate in the conveying channel 201 to complete the extrusion of the material. At the same time, the heating pipes 202 are used to heat the barrel 2 to dissolve the material.

[0026] During operation, the raw materials to be produced are fed into the connecting pipe 9. The first motor 602 outputs torque to the first threaded rod 603, causing the first threaded rod 603 to rotate on the first track 601. This drives the sliding rod 604, which is threaded onto the first threaded rod 603, to move linearly, moving the quick-connect assembly above the designated quick-connect support 4. Then, the second motor 702 outputs torque to the second threaded rod 703, causing the second threaded rod 703 to rotate on the second track 701. This drives the mounting frame 704 to move linearly on the second threaded rod 703, quickly installing the feeding hopper 8 onto the quick-connect support 4. Finally, the hydraulic cylinder 501 outputs pressure to the hydraulic rod 502, pushing the hydraulic rod 502 to move linearly, thereby driving the sealing... The sealing plate 503 slides on the quick-connect support 4, opening the feeding channel of the quick-connect support 4, allowing the connecting pipe 9 to convey material into the barrel 2. Then, the third motor 1001 outputs torque to the drive shaft 1002, causing the drive shaft 1002 to rotate, driving the first gear 1003 to rotate, and driving the second gear 1004 meshing on one side of the first gear 1003 to rotate synchronously. The first gear 1003 drives one screw body 11 to rotate, while the second gear 1004 drives the other screw body 11 to rotate. The two screw bodies 11 rotate in the conveying channel 201 to complete the extrusion of the material. At the same time, the heating pipe 202 heats the barrel 2 to dissolve the material until the material is discharged from the feeding cylinder 3.

[0027] Through the above steps, multiple barrels 2 are connected, and multiple quick-connect supports 4 are equipped on multiple barrels. By utilizing the real-time rapid switching of multiple component channels, the modularity of the device is achieved. This makes subsequent local cleaning and maintenance very convenient, without the need for complete machine disassembly, greatly improving work efficiency. It also allows for better maintenance and cleaning, and the material feeding channel can be flexibly adjusted to adapt to various process flows. The produced products have better quality, solving the problems of traditional twin-screw extruders for plastic pipe processing having a single material feeding channel, being unable to disassemble and replace components individually, resulting in soaring maintenance costs and downtime, and limited production flexibility and process adaptability.

Claims

1. A twin-screw extruder for processing plastic pipes, comprising a frame (1); characterized in that: It also includes a cylinder (2), several cylinders (2) are fixedly connected to the frame (1), adjacent cylinders (2) are connected by bolts, a feed cylinder (3) is bolted to the end of the cylinder (2), a quick-connect support (4) is fixedly connected above the cylinder (2), a sealing component is connected to the quick-connect support (4), a selection control component is fixedly connected to the frame (1), a quick-connect component is connected to the output end of the selection control component, the selection control component is used to drive the quick-connect component to perform horizontal linear motion, a feeding hopper (8) is fixedly connected to the output end of the quick-connect component, the quick-connect component is used to drive the feeding hopper (8) to perform vertical linear motion, the feeding hopper (8) and the quick-connect support (4) are movably connected, and a connecting pipe (9) is fixedly connected above the feeding hopper (8). The selector control component includes a first track (601), a first motor (602), a first threaded rod (603), and a slide rod (604). The first track (601) is fixedly connected to the frame (1). The first motor (602) is fixedly connected to the first track (601). The output end of the first motor (602) is fixedly connected to the first threaded rod (603). The first motor (602) is used to drive the first threaded rod (603) to rotate. The first threaded rod (603) is rotatably connected to the first track (601). The slide rod (604) is threadedly connected to the first threaded rod (603). The other end of the slide rod (604) is fixedly connected to the quick-connect assembly.

2. The twin-screw extruder for processing plastic pipes according to claim 1, characterized in that: The sealing assembly includes a hydraulic cylinder (501), a hydraulic rod (502), and a sealing plate (503). The hydraulic cylinder (501) is fixedly connected to the barrel (2). The output end of the hydraulic cylinder (501) is fixedly connected to the hydraulic rod (502). The hydraulic cylinder (501) is used to push the hydraulic rod (502) to perform linear motion. The other end of the hydraulic rod (502) is fixedly connected to the sealing plate (503). The sealing plate (503) is slidably connected to the quick-connect support (4).

3. The twin-screw extruder for processing plastic pipes according to claim 1, characterized in that: The quick-connect assembly includes a second track (701), a second motor (702), a second threaded rod (703), and a mounting frame (704). The second track (701) is fixedly connected to the slide bar (604). The second motor (702) is fixedly connected to the second track (701). The output end of the second motor (702) is fixedly connected to the second threaded rod (703). The second motor (702) is used to drive the second threaded rod (703) to rotate. The second threaded rod (703) is rotatably connected to the second track (701). The mounting frame (704) is threadedly connected to the second threaded rod (703). The mounting frame (704) is fixedly connected to the feeding hopper (8).

4. The twin-screw extruder for processing plastic pipes according to claim 1, characterized in that: A drive assembly is fixedly connected to the frame (1). Two screw bodies (11) are fixedly connected to the output end of the drive assembly. The drive assembly is used to drive the screw bodies (11) to rotate. A sealed bearing (12) is fixedly connected to the screw body (11). The sealed bearing (12) is fixedly connected to the barrel (2).

5. A twin-screw extruder for processing plastic pipes according to claim 4, characterized in that: The drive assembly includes a third motor (1001), a drive shaft (1002), a first gear (1003), and a second gear (1004). The third motor (1001) is fixedly connected to the frame (1). The output end of the third motor (1001) is fixedly connected to the drive shaft (1002). The other end of the drive shaft (1002) is fixedly connected to the first gear (1003). The second gear (1004) is meshed with one side of the first gear (1003). Both the first gear (1003) and the second gear (1004) are fixedly connected to the screw body (11).

6. A twin-screw extruder for processing plastic pipes according to claim 5, characterized in that: The barrel (2) has a conveying channel (201) in the center, and the screw body (11) is rotatably connected in the conveying channel (201). Several heating pipes (202) are provided on the outside of the conveying channel (201).

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