Extruder for PE pipe production
By optimizing the screw structure and heating system, and combining multi-point temperature detection and automated control, the problems of uneven plasticization and inaccurate temperature control in PE pipe production have been solved, achieving uniform material mixing and precise temperature adjustment, thus improving pipe quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 马清洪
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing extruders used for PE pipe production suffer from uneven plasticization, leading to differences in pipe performance. Furthermore, the heating system's temperature control is inaccurate, resulting in temperature variations.
The system employs an optimized screw structure and an arc-shaped zone heater, combined with multi-point temperature detection and an automated control system, to ensure accurate temperature control and uniform material mixing.
It improves the uniformity of material mixing and the accuracy of temperature control, reduces the driving load, and achieves uniform plasticization and stable production of PE pipes.
Smart Images
Figure CN224256002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PE pipe production technology, specifically to an extruder for PE pipe production. Background Technology
[0002] The extruder used in PE pipe production is a key piece of equipment. The extruder uses a rotating screw to propel plastic granules forward. Simultaneously, friction between the screw and the barrel, along with external heating, gradually heats, softens, and melts the plastic granules. Under the extrusion action of the screw, the molten plastic is forced through a die to form PE pipes of specific shapes and sizes.
[0003] The following problems still exist in the use of existing extruders for PE pipe production: uneven plasticization, local performance differences in the pipe, such as some parts having high hardness and others having good flexibility, and uneven color and air bubbles in appearance. These are mainly due to unreasonable screw design, which leads to inconsistent residence time of plastic in the barrel, and inaccurate temperature control of the heating system, resulting in temperature differences. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an extruder for PE pipe production, which solves the problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an extruder for PE pipe production, comprising a base, a machine seat fixedly connected to the center of the top of the base, an extrusion mechanism fixedly installed on one side of the top of the machine seat, the extrusion mechanism comprising a transmission pipe, a feed port opened on the other side of the top of the transmission pipe, a screw element coaxially arranged inside the transmission pipe, the screw element being hollow inside and a spiral strip fixedly connected to its annular outer wall, an end block fixedly connected to the opening at one end of the screw element, a connecting seat fixedly connected to the opening at the other end of the screw element, a power mechanism provided at the other end of the connecting seat, an arc-shaped partition heater fixedly connected to the top of the outer wall of the transmission pipe, multiple supports fixedly installed at equal intervals between the bottom of the outer wall of the transmission pipe and the top of the machine seat, and a temperature sensor fixedly installed at the junction of each support and the outer wall of the transmission pipe, an electrical control box fixedly installed on one side of the front end of the machine seat, the electrical control box being electrically connected to the arc-shaped partition heater and the multiple temperature sensors.
[0008] As a further embodiment of this utility model: a plurality of reinforcing blocks are fixedly connected to the lower part of the outer side wall of the machine base, and the bottom ends of the plurality of reinforcing blocks are fixedly connected to the base. A metering electric feeding hopper is fixedly connected to the outer side wall of the transmission pipe and located at the opening of the feed inlet.
[0009] As a further embodiment of this utility model: the power mechanism includes a drive motor and a reducer fixedly connected to the other side of the top of the base. The drive motor is located on the other side of the reducer, and the output end of the drive motor is connected to the input end of the reducer. The output end of the reducer is fixedly connected to a coupling, and the coupling is fixedly connected to a connecting seat.
[0010] As a further embodiment of this utility model: a discharge connector is fixedly installed at the interface of one end of the transmission pipe, a partition net is provided at the connection between the discharge connector and the transmission pipe, and a mold is provided at the outlet of one end of the discharge connector.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, by adopting an optimized screw structure and a new type of screw element, the internal structure is hollow and a spiral strip is provided on its outer wall, which reduces the mass, reduces the driving load of the drive structure, improves the rotational stability of the screw element, and improves the mixing uniformity of the material. In addition, the arc-shaped partition heater is equipped with a multi-point temperature detection mechanism, which can use the temperature detection data at multiple points to calibrate the heating structure and ensure the accuracy of temperature control.
[0013] 2. In this utility model, by upgrading the control system and adding automated control functions, the temperature control structure is equipped with an electric control box, which is electrically connected to multiple temperature sensors and arc-shaped partition heaters. It can automatically adjust the temperature based on the control program built into the electric control box. At the same time, its feeding structure is a metering feeding structure, that is, a metering electric feeding hopper, which can automatically control the production feeding based on a preset program, which is more convenient. Attached Figure Description
[0014] Figure 1 This is a perspective view of the entire utility model;
[0015] Figure 2 This is a perspective view of the power mechanism and extrusion mechanism of this utility model;
[0016] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle.
[0018] In the diagram: 1. Base; 2. Machine base; 3. Reinforcing block; 4. Extrusion mechanism; 5. Power mechanism; 6. Electrical control box; 7. Arc-shaped zone heater; 8. Support; 9. Temperature sensor; 41. Transmission pipe; 42. Feed inlet; 43. Metering electric feed hopper; 44. Connecting seat; 45. Screw element; 46. Spiral blade; 47. End block; 48. Discharge connector; 49. Partition net; 410. Mold; 51. Drive motor; 52. Reducer; 53. Coupling. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figures 1-4In this embodiment of the present invention, an extruder for producing PE pipes includes a base 1. A machine base 2 is fixedly connected to the center of the top of the base 1. An extrusion mechanism 4 is fixedly installed on one side of the top of the machine base 2. The extrusion mechanism 4 includes a transmission pipe 41. A feed inlet 42 is opened on the other side of the top of the transmission pipe 41. A screw element 45 is coaxially arranged inside the transmission pipe 41. The screw element 45 is hollow inside and a spiral strip 46 is fixedly connected to its annular outer wall. An end block 47 is fixedly connected to the opening at one end of the screw element 45. A connecting seat 44 is fixedly connected to the opening at the other end of the screw element 45. A power mechanism 5 is provided at the other end of the connecting seat 44. An arc-shaped partition heater 7 is fixedly connected to the top of the outer wall of the transmission pipe 41. The bottom end of the outer wall of the transmission pipe 41 is connected to the top of the machine base 2. Multiple supports 8 are fixedly installed at equal intervals between the ends, and a temperature sensor 9 is fixedly installed at the junction of each support 8 and the outer wall of the transmission pipe 41. An electrical control box 6 is fixedly installed on one side of the front end of the base 2. The electrical control box 6 is electrically connected to the arc-shaped partition heater 7 and the multiple temperature sensors 9. The whole adopts an optimized screw structure and uses a new type of screw element 45, which is hollow inside and has a spiral strip 46 on its outer wall. This reduces the mass, reduces the driving load of the drive structure, improves the rotational smoothness of the screw element 45, and improves the mixing uniformity of the material. It is also equipped with a multi-point temperature detection mechanism, i.e., multiple temperature sensors 9, in conjunction with the arc-shaped partition heater 7. The heating structure can be calibrated by the temperature detection data at multiple points to ensure the accuracy of temperature control.
[0023] Multiple reinforcing blocks 3 are fixedly connected to the lower side wall of the machine base 2. The bottom of the multiple reinforcing blocks 3 is fixedly connected to the base 1. A metering electric feeding hopper 43 is fixedly connected to the outer wall of the transmission pipe 41 and located at the opening of the feed inlet 42. The overall control system is upgraded to add automatic control function. Its temperature control structure is equipped with an electric control box 6, which is electrically connected to multiple temperature sensors 9 and arc-shaped partition heaters 7. It can automatically adjust the temperature based on the control program built into the electric control box 6. At the same time, its feeding structure is a metering feeding structure, namely the metering electric feeding hopper 43, which can automatically control the production feeding based on a preset program, which is more convenient.
[0024] The power mechanism 5 includes a drive motor 51 and a reducer 52 fixedly connected to the other side of the top of the base 2. The drive motor 51 is located on the other side of the reducer 52, and the output end of the drive motor 51 is connected to the input end of the reducer 52. The output end of the reducer 52 is fixedly connected to a coupling 53, and the coupling 53 is fixedly connected to a connecting seat 44. The drive motor 51 can drive the reducer 52 to drive the coupling 53 to rotate the screw element 45, thereby realizing the spiral feeding of raw materials for PE pipe production.
[0025] A discharge connector 48 is fixedly installed at one end of the transmission pipe 41. A partition net 49 is provided at the connection between the discharge connector 48 and the transmission pipe 41. A mold 410 is provided at the outlet of one end of the discharge connector 48. The partition net 49 and the mold 410 play the role of extrusion discharge and diversion.
[0026] The working principle of this utility model is as follows: its feeding structure is a metering feeding structure, namely a metering electric feeding hopper 43, which can automatically control the production feeding based on a preset program. The material can enter the transmission pipe 41 through the feed port 42, and can be driven by the drive motor 51 and the reducer 52 to drive the coupling 53 to drive the screw element 45 to rotate, realizing the spiral feeding of raw materials for PE pipe production. That is, the rotation of the screw pushes the plastic particles forward. At the same time, the friction between the screw and the transmission pipe 41 and the external arc-shaped partition heater 7 cause the plastic particles to gradually heat up, soften and melt. Under the extrusion action of the screw, the molten plastic is forced through the partition 49 and the mold 410 to form PE pipes with specific shapes and sizes.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An extruder for producing PE pipes, comprising a base (1), wherein a machine base (2) is fixedly connected to the center of the top of the base (1), and an extrusion mechanism (4) is fixedly installed on one side of the top of the machine base (2). Its features are: The extrusion mechanism (4) includes a transmission tube (41), and a feed port (42) is provided on the other side of the top end of the transmission tube (41). A screw element (45) is coaxially arranged inside the transmission tube (41). The screw element (45) is hollow inside and a spiral strip (46) is fixedly connected to its annular outer wall. An end block (47) is fixedly connected to the opening at one end of the screw element (45), and a connecting seat (44) is fixedly connected to the opening at the other end of the screw element (45). A power mechanism (5) is provided at the other end of the connecting seat (44). An arc-shaped partition heater (7) is fixedly connected to the top of the outer wall of the transmission pipe (41). Multiple supports (8) are fixedly installed at equal intervals between the bottom of the outer wall of the transmission pipe (41) and the top of the base (2). A temperature sensor (9) is fixedly installed at the junction of each support (8) and the outer wall of the transmission pipe (41). An electrical control box (6) is fixedly installed on one side of the front end of the base (2). The electrical control box (6) is electrically connected to the arc-shaped partition heater (7) and the multiple temperature sensors (9).
2. The extruder for producing PE pipes according to claim 1, characterized in that: Multiple reinforcing blocks (3) are fixedly connected to the lower side of the outer wall of the base (2), and the bottom of the multiple reinforcing blocks (3) are fixedly connected to the base (1).
3. The extruder for producing PE pipes according to claim 1, characterized in that: The power mechanism (5) includes a drive motor (51) and a reducer (52) fixedly connected to the other side of the top of the base (2).
4. The extruder for producing PE pipes according to claim 3, characterized in that: The drive motor (51) is located on the other side of the reducer (52), and the output end of the drive motor (51) is connected to the input end of the reducer (52). The output end of the reducer (52) is fixedly connected to a coupling (53), and the coupling (53) is fixedly connected to a connecting seat (44).
5. An extruder for producing PE pipes according to claim 1, characterized in that: A metering electric feed hopper (43) is fixedly connected to the outer wall of the transmission pipe (41) and at the opening of the feed inlet (42).
6. The extruder for producing PE pipes according to claim 1, characterized in that: A discharge connector (48) is fixedly installed at one end of the transmission pipe (41).
7. An extruder for producing PE pipes according to claim 6, characterized in that: A partition net (49) is provided at the junction of the discharge connector (48) and the transmission pipe (41), and a mold (410) is provided at the outlet of one end of the discharge connector (48).