A heat-preservation type HDPE pipe production device

Abstract

The utility model discloses a kind of heat-preservation type HDPE pipeline production device, it is related to HDPE pipeline production technical field, including pedestal, the extruder body of being set to pedestal one end, by setting multiple heat-preservation jacket can be independently temperature regulation to the different area of extrusion cylinder, greatly improve the heat preservation effect, guarantee the temperature stability of raw material in extrusion cylinder, to improve the production quality of HDPE pipeline, and telescopic pipe can be shrunk along the closing pipe, when heat-preservation jacket is set on the outside of extrusion cylinder, pull telescopic pipe, insert its one end in adapter pipe, thus realized the intercommunication between each group heat-preservation jacket, so that heat-preservation medium can be circulated in each heat-preservation jacket, while guarantee the sealing property of intercommunication, prevent heat-preservation medium leakage, when subsequent dismounting, reverse fastening sleeve, retract telescopic pipe to closing pipe inside again, it is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of HDPE pipe production technology, specifically to a heat-insulating HDPE pipe production device. Background Technology

[0002] HDPE pipe, short for high-density polyethylene pipe, is a thermoplastic pipe made of high-density polyethylene. Simply put, it is a pipe made of high-performance plastic. Due to its excellent comprehensive performance, it is widely used in many fields and has become one of the most important materials in modern pipeline engineering.

[0003] In the production process of existing HDPE pipes, hot melt plastic is often extruded using an extruder and then cooled and molded. However, when the working environment temperature is low, the plastic cools down quickly during the extrusion process, which can easily lead to pipe deformation and cause many inconveniences to the production of HDPE pipes.

[0004] In summary, when using existing HDPE pipe production equipment, if the ambient temperature is low, the plastic cools down rapidly during the extrusion process, causing pipe deformation and creating many inconveniences for HDPE pipe production. Utility Model Content

[0005] The purpose of this utility model is to provide an insulated HDPE pipe production device to solve the technical problem that when most existing HDPE pipe production devices are used, the plastic cools down quickly during the extrusion process in low ambient temperatures, causing pipe deformation and causing many inconveniences to HDPE pipe production.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] An insulated HDPE pipe production apparatus includes a base and an extruder body disposed at one end of the base.

[0008] The base is provided with an extrusion cylinder at its output end, and the output end of the extrusion cylinder is attached to the other end of the base. Several sets of spaced insulation jackets are symmetrically fitted on the outside of the extrusion cylinder, and an annular chamber is opened inside the insulation jacket. The insulation jackets are connected to each other through a connecting component.

[0009] The connecting component includes a connecting pipe, a telescopic pipe slidably fitted inside the connecting pipe, a closing pipe slidably fitted at the end of the telescopic pipe away from the connecting pipe, a sealing plug located on the outside of the inside end of the telescopic pipe located inside the closing pipe, and an O-ring sealing ring located on the outside of the inside end of the telescopic pipe located inside the connecting pipe.

[0010] Preferably, the top of the base is provided with a support plate for supporting the extrusion cylinder.

[0011] Preferably, the input end of the extruder body is provided with a feed hopper, and the output end of the extrusion cylinder is provided with an extrusion head.

[0012] Preferably, the two ends of the insulation jacket that are close to each other are provided with fixing plates, and the fixing plates are provided with threaded holes for fixing the insulation jacket.

[0013] Preferably, the bottom ends of the insulation jackets that are close to each other are symmetrically provided with gas grooves.

[0014] Preferably, the bottom of the insulation jacket is provided with a manifold, and the bottom of the manifold is provided with a negative pressure fan.

[0015] Preferably, the two sets of insulation jackets on the far right are respectively provided with an inlet pipe and an outlet pipe on the side that is far apart from each other, and the inlet pipe is located below the outlet pipe. Both the inlet pipe and the outlet pipe are provided with flow valves.

[0016] Preferably, a fastening sleeve is movably sleeved on the outer side of the adapter pipe, and the fastening sleeve and the adapter pipe are threaded together.

[0017] Preferably, a compensation sleeve is fitted on the outer side of the middle end of the telescopic tube, and the diameter of the compensation sleeve is equal to the diameter of the adapter tube, and the compensation sleeve can be threadedly connected to the fastening sleeve.

[0018] Preferably, the end of the compensation sleeve near the constriction tube is provided with a limiting baffle for limiting the movement of the fastening sleeve.

[0019] The beneficial effects of this utility model are:

[0020] In this invention, by setting multiple insulation jackets, the temperature of different areas of the extrusion cylinder can be independently adjusted, which greatly improves the insulation effect and ensures the temperature stability of the raw material inside the extrusion cylinder, thereby improving the production quality of HDPE pipes. In addition, the telescopic pipe can be contracted along the constriction pipe. When the insulation jacket is fitted on the outside of the extrusion cylinder, the telescopic pipe is pulled and one end is inserted into the adapter pipe, thereby realizing the connection between each set of insulation jackets, allowing the insulation medium to flow in each insulation jacket, while ensuring the sealing of the connection point to prevent the insulation medium from leaking. In subsequent disassembly, the fastening sleeve is reversed and the telescopic pipe is then retracted into the constriction pipe, which is convenient and quick.

[0021] In this invention, the telescopic tube and the constricting tube can slide relative to each other, thereby enabling the connecting component to adapt to changes in the spacing between adjacent insulation jackets, improving the adaptability and flexibility of the device, and facilitating installation and maintenance. Attached Figure Description

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

[0023] Figure 1 This is one of the overall three-dimensional schematic diagrams of the device in this utility model;

[0024] Figure 2 This is the second overall three-dimensional schematic diagram of the device in this utility model;

[0025] Figure 3 This is a three-dimensional schematic diagram of the thermal insulation jacket in this utility model;

[0026] Figure 4 This is a top view of the device in this utility model;

[0027] Figure 5 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 6 This is a schematic diagram of the cooperation between the transfer pipe and the telescopic pipe of this utility model.

[0029] In the diagram: 1. Base; 2. Extruder body; 3. Feed hopper; 4. Extrusion cylinder; 5. Extrusion head; 6. Insulation jacket; 7. Fixing plate; 8. Gas tank; 9. Manifold; 10. Negative pressure fan; 11. Water inlet pipe; 12. Water outlet pipe; 13. Transfer pipe; 14. Fastening sleeve; 15. Closing pipe; 16. Telescopic pipe; 17. Compensating sleeve; 18. Limiting baffle; 19. Sealing plug; 20. O-ring seal. Detailed Implementation

[0030] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0031] like Figure 1-6 As shown, an insulated HDPE pipe production device includes a base 1 and an extruder body 2 disposed at one end of the base 1. The base 1 provides a stable support foundation for the entire device, ensuring that all components can be installed and operated normally. The extruder body 2 is the core equipment for producing HDPE pipes, which performs hot melt extrusion of raw materials.

[0032] An extrusion cylinder 4 is provided at the output end of the base 1, and the output end of the extrusion cylinder 4 is attached to the other end of the base 1. A feed hopper 3 is provided at the input end of the extruder body 2, and an extrusion head 5 is provided at the output end of the extrusion cylinder 4. Several sets of spaced insulation jackets 6 are symmetrically fitted on the outside of the extrusion cylinder 4, and an annular chamber is opened inside the insulation jacket 6. The insulation jackets 6 are connected to each other through a connecting component. The connecting component includes a transfer pipe 13, a telescopic pipe 16 slidably fitted inside the transfer pipe 13, a closing pipe 15 slidably fitted on the end of the telescopic pipe 16 away from the transfer pipe 13, a sealing plug 19 located on the outside of the end of the telescopic pipe 16 located inside the closing pipe 15, and a sealing plug 19 located on the outside of the end of the telescopic pipe 16 located inside the transfer pipe 13. An O-ring 20 is attached to the outer side of one end of the connector 13. A fastening sleeve 14 is movably fitted onto the outer side of the adapter pipe 13, and the fastening sleeve 14 is threadedly connected to the adapter pipe 13. A compensation sleeve 17 is fitted onto the outer side of the middle end of the telescopic pipe 16, and the diameter of the compensation sleeve 17 is equal to the diameter of the adapter pipe 13. The compensation sleeve 17 can be threadedly connected to the fastening sleeve 14. A limiting baffle 18 is provided at the end of the compensation sleeve 17 near the constriction pipe 15 to limit the movement of the fastening sleeve 14. When the device is in use, the raw material is processed in the extrusion cylinder 4 and then extruded from the extrusion head 5 to form an HDPE pipe. A temperature sensor is installed on the extrusion cylinder 4 to monitor the internal temperature of the device in real time and ensure that the extrusion cylinder 4 is always maintained within a suitable temperature range. Inside, the feed hopper 3 facilitates the input of raw materials, ensuring continuous production. The insulation jacket 6 can be assembled onto the outside of the extrusion cylinder 4. The annular chamber inside the insulation jacket 6 is used to contain the insulation medium to insulate the extrusion cylinder 4, preventing the raw materials inside the extrusion cylinder 4 from affecting the production quality of the pipeline due to temperature drop. During the assembly process, first align each set of insulation jackets 6 with each other. Then, the operator can pull the telescopic tube 16 out through the limit baffle 18, insert the movable end of the telescopic tube 16 into the adapter tube 13, and then rotate the fastening sleeve 14 so that the fastening sleeve 14 is threadedly connected to the compensation sleeve 17 set on the outer side of the middle end of the adapter tube 13 and the telescopic tube 16, thereby enhancing the stability and sealing of the connecting components. 7. The length of the telescopic tube 16 inserted into the adapter tube 13 is limited. One end of the telescopic tube 16 forms a sliding seal connection with the closing tube 15 through the sealing plug 19. The other end of the telescopic tube 16 forms a seal connection with the adapter tube 13 through the O-ring 20. After the adapter tube 13, the telescopic tube 16 and the closing tube 15 are connected, the connection between each set of insulation jackets 6 is realized, so that the insulation medium can flow in each insulation jacket 6. At the same time, the sealing of the connection is ensured to prevent the insulation medium from leaking. The limiting baffle 18 limits the movement of the fastening sleeve 14 to prevent it from moving excessively. When disassembling later, the fastening sleeve 14 is reversed and the telescopic tube 16 is retracted into the closing tube 15, which is convenient and quick.

[0033] In this embodiment, specifically, the top of the base 1 is provided with a support plate for supporting the extrusion cylinder 4, to prevent the extrusion cylinder 4 from deforming or shaking due to gravity or other reasons during the production process, and to ensure the stability of production.

[0034] In this embodiment, specifically, fixing plates 7 are provided at the two ends of the insulation jacket 6 that are close to each other, and threaded holes for fixing the insulation jacket 6 are provided on the fixing plates 7.

[0035] In this embodiment, specifically, gas grooves 8 are symmetrically provided at the bottom ends of the insulation jackets 6 that are close to each other. A manifold 9 is provided at the bottom of the insulation jacket 6, and a negative pressure fan 10 is provided at the bottom of the manifold 9. When the temperature inside the insulation jacket 6 is too high, the negative pressure fan 10 is started. After the negative pressure fan 10 is started, the hot air inside the insulation jacket 6 is extracted through the gas grooves 8 and the manifold 9, which accelerates the air flow inside the insulation jacket 6, thereby achieving the effect of cooling.

[0036] In this embodiment, specifically, the two sets of insulation jackets 6 on the far right are respectively provided with an inlet pipe 11 and an outlet pipe 12 on the side away from each other, and the inlet pipe 11 is located below the outlet pipe 12. Both the inlet pipe 11 and the outlet pipe 12 are provided with flow valves. The inlet pipe 11 is used to input the insulation medium into the annular cavity inside the insulation jacket 6, and the outlet pipe 12 is used to discharge the insulation medium. The flow valves can control the flow rate of the insulation medium to ensure that the insulation medium in the annular cavity is in a suitable temperature and flow rate state.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] The working principle of this utility model is as follows: Each insulation jacket 6 is fixed to the outside of the extrusion cylinder 4 and aligned by the fixing plate 7 and bolts. Then, the telescopic tube 16 is pulled and the movable end of the telescopic tube 16 is inserted into the adapter tube 13. Then, the fastening sleeve 14 is rotated so that the fastening sleeve 14 is threadedly connected to the compensation sleeve 17 set on the middle outer side of the adapter tube 13 and the telescopic tube 16. This realizes the connection between each group of insulation jackets 6. The water inlet pipe 11 is connected to the external insulation medium supply system, and the water outlet pipe 12 is connected to the recycling system. The flow valve on the water inlet pipe 11 is opened to input the insulation medium into the insulation jacket 6. The insulation medium circulates in each insulation jacket 6 to keep the temperature in the extrusion cylinder 4 within a suitable range. Then, the raw material for producing HDPE pipes is fed into the extruder body 2 through the feed hopper 3. The raw material enters the extrusion cylinder 4 under the action of the extruder body 2. After the raw material undergoes heating, plasticizing and other processing processes in the extrusion cylinder 4, it is extruded from the extrusion head 5 to form HDPE pipes. After the production is completed, the extruder body 2 is turned off.

[0039] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A thermal insulation HDPE pipe production device, comprising a base (1) and an extruder body (2) disposed at one end of the base (1), characterized in that: The base (1) is provided with an extrusion cylinder (4) at its output end, and the output end of the extrusion cylinder (4) is placed at the other end of the base (1). Several sets of spaced insulation jackets (6) are symmetrically sleeved on the outside of the extrusion cylinder (4), and an annular cavity is opened inside the insulation jackets (6). The insulation jackets (6) are connected to each other through a connecting component. The connecting component includes a connecting pipe (13), a telescopic pipe (16) slidably sleeved inside the connecting pipe (13), a closing pipe (15) slidably sleeved at the end of the telescopic pipe (16) away from the connecting pipe (13), a sealing plug (19) disposed on the outside of the end of the telescopic pipe (16) located inside the closing pipe (15), and an O-ring (20) disposed on the outside of the end of the telescopic pipe (16) located inside the connecting pipe (13).

2. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The base (1) is provided with a support plate on top for supporting the extrusion cylinder (4).

3. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The extruder body (2) is provided with a feed hopper (3) at its input end and an extrusion head (5) at its output end.

4. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The insulation jacket (6) has a fixing plate (7) at both ends that are close to each other, and the fixing plate (7) has a threaded hole for fixing the insulation jacket (6).

5. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, Gas grooves (8) are symmetrically opened at the bottom ends of the insulation jackets (6) that are close to each other.

6. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The bottom of the insulation jacket (6) is provided with a manifold (9), and the bottom of the manifold (9) is provided with a negative pressure fan (10).

7. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The two sets of insulation jackets (6) at the far right end are respectively provided with an inlet pipe (11) and an outlet pipe (12) on the side away from each other, and the inlet pipe (11) is located below the outlet pipe (12). Both the inlet pipe (11) and the outlet pipe (12) are provided with flow valves.

8. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The outer side of the adapter pipe (13) is fitted with a fastening sleeve (14), and the fastening sleeve (14) and the adapter pipe (13) are connected by threads.

9. The insulated HDPE pipe production apparatus according to claim 1, characterized in that, The telescopic tube (16) is fitted with a compensation sleeve (17) on the outer side of its middle end, and the diameter of the compensation sleeve (17) is equal to the diameter of the adapter tube (13). The compensation sleeve (17) can be threadedly connected to the fastening sleeve (14).

10. The insulated HDPE pipe production apparatus according to claim 9, characterized in that, The compensation sleeve (17) is provided with a limiting baffle (18) at one end near the constriction tube (15) to limit the movement of the fastening sleeve (14).

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