PE pipeline and manufacturing method thereof

Abstract

The invention relates to the field of PE pipeline manufacturing, in particular to a PE pipeline and a manufacturing method thereof. Comprising a pipe body, a plurality of spiral protrusions fixedly connected to the pipe body, and a plurality of spiral grooves formed in the inner wall of the pipe body and corresponding to the spiral protrusions. The manufacturing method of the PE pipeline comprises the following steps: step 1, fully mixing various different raw materials; 2, heating the raw materials to a molten state and pushing the raw materials to flow out; 3, the raw materials in the molten state are added into the outer frame and the inner frame to be formed; 4, the added raw materials are pushed in a reciprocating mode to be fully subjected to PE pipeline forming; 5, the formed PE pipeline is cooled and shaped; and sixthly, the shaped PE pipeline is pushed in a reciprocating mode to move, and continuous manufacturing of the PE pipeline is achieved. And a PE pipeline of which the outer wall is provided with a threaded bulge and the inner wall is provided with a spiral groove can be formed.

Description

Technical Field

[0001] This invention relates to the field of PE pipe manufacturing, and more specifically to a PE pipe and its manufacturing method. Background Technology

[0002] Due to its superior performance, PE (polyethylene) is widely used in the manufacturing of water supply pipes. PE water supply pipes possess excellent corrosion resistance, hygienic properties, flexibility, low-temperature resistance, and a long service life. They also have low production energy consumption, low flow resistance, and are easy and quick to install, making them an ideal replacement for traditional steel water supply pipes and PVC (polyvinyl chloride) water supply pipes. However, existing PE pipe manufacturing processes cannot produce PE pipes with threaded protrusions on the outer wall and spiral grooves on the inner wall. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a PE pipe and its manufacturing method, which can form a PE pipe with threaded protrusions on the outer wall and spiral grooves on the inner wall.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A PE pipe includes a pipe body and a plurality of spiral protrusions fixed to the pipe body, and a plurality of spiral grooves machined on the inner wall of the pipe body corresponding to the plurality of spiral protrusions.

[0006] Furthermore, a method for manufacturing PE pipes includes the following steps:

[0007] Step 1: Thoroughly mix the various raw materials;

[0008] Step 2: Heat the raw material to a molten state and push it out;

[0009] Step 3: Add the molten material into the outer and inner frames to form the shape;

[0010] Step 4: Repeatedly push the added raw materials to fully form the PE pipe;

[0011] Step 5: Cool and shape the formed PE pipe;

[0012] Step Six: Reciprocating motion of the shaped PE pipe enables continuous manufacturing of the PE pipe.

[0013] Furthermore, in step two, when the molten raw material flows out, the attached raw material is scraped off completely before being discharged.

[0014] Furthermore, the reciprocating addition of raw materials in step four includes the following steps:

[0015] S1: Push the pressing block to slide and apply pressure to the raw material;

[0016] S2: Pull the pressure block to reset and release pressure at the same time.

[0017] Furthermore, the cooling process in step five includes the following steps:

[0018] S1: Cooling the inner wall of the PE pipe by circulating coolant into the rotating inner bend;

[0019] S2: Cooling the outer wall of the PE pipe is achieved by circulating coolant inside the outward bend.

[0020] Furthermore, the reciprocating motion of the shaped PE pipe in step six includes the following steps:

[0021] S1: Drive the two clamping blocks to approach and clamp the shaped PE pipe;

[0022] S2: Drives the two clamping blocks to move and transport PE pipes;

[0023] S3: Drive the two clamping blocks to separate and loosen the shaped PE pipe;

[0024] S4: Drive the two clamping blocks to reset and repeat the PE pipeline transportation. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0026] Figure 1 A flowchart illustrating the process of manufacturing PE pipes;

[0027] Figure 2 A flowchart for raw materials subjected to reciprocating pressure molding;

[0028] Figure 3 A flowchart for transporting PE pipes;

[0029] Figure 4 Flowchart for cooling PE pipes;

[0030] Figure 5 This is a structural diagram of the tube.

[0031] Figure 6 This is a structural diagram of the formed tube body;

[0032] Figure 7 This is a structural diagram of the internal structure of the cooling pipe body;

[0033] Figure 8 A structural diagram showing the structure that drives the inner bend to rotate;

[0034] Figure 9 A structural diagram to facilitate the forming of raw materials;

[0035] Figure 10 This is a structural diagram of the outer wall of the cooling pipe.

[0036] Figure 11 Structural diagram to facilitate PE pipeline transportation;

[0037] Figure 12 A structural diagram illustrating how to bring the two clamping blocks closer together;

[0038] Figure 13 A cross-sectional view showing the two clamping blocks being brought closer together;

[0039] Figure 14 A structural diagram for manufacturing PE pipes.

[0040] Pipe body 11; outer frame 21; guide frame 22; inner frame 23; pressure relief pipe 24; inner bend pipe 31; gear ring frame 32; eccentric wheel 33; cylinder I 41; pressure block 42; outer bend pipe 51; connecting pipe 52; end frame 61; cylinder II 62; auxiliary frame 63; ring frame 64; cylinder III 65; semi-arc plate 66; clamping block 67. Detailed Implementation

[0041] refer to Figure 5 Detailed explanation of the structure of PE pipes:

[0042] A PE pipe includes a pipe body 11 and a plurality of spiral protrusions fixedly connected to the pipe body 11, as well as a plurality of spiral grooves machined on the inner wall of the pipe body 11 corresponding to the spiral protrusions. When the PE pipe is in use, the spiral protrusions and grooves corresponding to the inner wall of the PE pipe can buffer the fluid flowing inside, thereby reducing the kinetic energy of the fluid and reducing the impact of the fluid on the inner wall of the PE pipe. The spiral protrusions and grooves corresponding to the inner wall of the PE pipe can also increase the ease of rotating the PE pipe.

[0043] In conjunction with the above embodiments, the following functions can also be achieved;

[0044] refer to Figure 1 and 6 The detailed implementation process for manufacturing PE pipes is as follows:

[0045] The method includes the following steps:

[0046] Step 1: Thoroughly mix various raw materials and evenly disperse them to ensure uniform distribution, which facilitates the processing of PE pipes with uniform performance.

[0047] Step 2: Heat the raw materials to a molten state and push them out, so that the solid raw materials can be melted into a fluid, which facilitates the uniform dispersion of various raw materials and the subsequent molding of PE pipes;

[0048] Step 3: Add the molten raw material into the outer frame 21 and inner frame 23 for molding. The PE pipe is formed by the constraint of the outer frame 21 and inner frame 23.

[0049] Step 4: The added raw materials are repeatedly pushed to fully form the PE pipe. By repeatedly pushing the material to pressurize the formed PE pipe, the air pores inside the formed PE pipe are reduced, and a fine PE pipe is produced.

[0050] Step 5: Cool and shape the formed PE pipe to cool the PE pipe between the outer frame 21 and the inner frame 23, thereby shaping the PE pipe and preventing deformation.

[0051] Step Six: The reciprocating motion of the shaped PE pipe enables continuous transportation of the PE pipe, thereby ensuring the continuous manufacturing of the PE pipe.

[0052] In conjunction with the above embodiments, the following functions can also be achieved;

[0053] refer to Figure 1 The detailed explanation outlines how the scraped-off raw materials are fully incorporated into the PE pipe manufacturing process.

[0054] In step two, when the molten raw material flows out, the attached raw material is scraped off completely to ensure that the raw material is fully involved in the manufacturing of PE pipes, prevent waste of raw materials, and save on the cost of manufacturing PE pipes.

[0055] In conjunction with the above embodiments, the following functions can also be achieved;

[0056] refer to Figure 2 and 4 The following details the implementation process of reciprocating the raw material to form PE pipes:

[0057] The reciprocating pushing of the added raw materials in step four includes the following steps:

[0058] S1: Push the pressure block 42 to slide and pressurize the raw material. By pushing the pressure block 42 to slide, the space between the pressure block 42 and the formed PE pipe is reduced, thereby pressurizing the raw material and reducing the number of pores in the formed PE pipe, thus producing a PE pipe with a fine texture.

[0059] S2: Pull the pressure block 42 to reset and release pressure at the same time, to ensure that the raw material can be pressurized when the pressure block 42 is pushed to slide again, and to prevent negative pressure from being generated when the pressure block 42 is reset, which would affect the molding of PE pipe.

[0060] In conjunction with the above embodiments, the following functions can also be achieved;

[0061] refer to Figure 7 , 8 Section 10 details the process of shaping the cooled PE pipe:

[0062] The cooling process in step five includes the following steps:

[0063] S1: By circulating coolant into the rotating inner bend 31, the inner wall of the PE pipe is cooled, thereby uniformly cooling the inner wall of the PE pipe through the rotation of the inner bend 31, thus shaping the inner wall of the PE pipe.

[0064] S2: The outer wall of the PE pipe is cooled by circulating coolant in the outward bend 51, thereby shaping the outer wall of the PE pipe through the outward bend 51.

[0065] In conjunction with the above embodiments, the following functions can also be achieved;

[0066] refer to Figure 3 and 11 Detailed explanation of the implementation process for transporting PE pipelines:

[0067] Step six involves reciprocating the movement of the shaped PE pipe, which includes the following steps:

[0068] S1: Drive the two clamping blocks 67 to approach and clamp the shaped PE pipe;

[0069] S2: Drive the two clamping blocks 67 to move and transport PE pipes;

[0070] S3: Drive the two clamping blocks 67 to separate and loosen the shaped PE pipe;

[0071] S4: Drive the two clamping blocks 67 to reset and repeat the transportation of PE pipe, thereby achieving continuous transportation of the formed PE pipe by reciprocating clamping of the PE pipe and reciprocating driving of the PE pipe.

[0072] In conjunction with the above embodiments, the following functions can also be achieved;

[0073] refer to Figure 6 , 9 Section 14 details the implementation process of molding PE pipes:

[0074] The outer frame 21 is fixedly connected to the inner frame 23. A guide frame 22 is fixedly connected to the outer frame 21, so that the raw material is added by adding molten raw material into the guide frame 22. A valve is provided in the guide frame 22, so that the flow of the guide frame 22 can be controlled and cut off. The PE pipe is formed through the space between the outer frame 21 and the inner frame 23. The pressure block 42 is slidably connected between the outer frame 21 and the inner frame 23. The pressure block 42 is fixedly connected to the cylinder rods of two cylinders I 41. Both cylinders I 41 are fixedly connected to the outer frame 21. A pressure relief pipe 24 is fixedly connected to the outer frame 21, so as to drive the two cylinders I 41. The cylinder rods of the two cylinders I 41 drive the pressure block 42 to slide back and forth, thereby reducing the formation of air holes in the formed PE pipe.

[0075] In conjunction with the above embodiments, the following functions can also be achieved;

[0076] refer to Figure 7 , 8 Sections 10 and 14 detail the implementation process of cooling PE pipes:

[0077] The inner bend 31 is fixedly connected to the gear ring frame 32, which is rotatably connected to the inner frame 23. The inner bend 31 is located in the middle of the inner frame 23. Two eccentric wheels 33 that drive the gear ring frame 32 to rotate are rotatably connected to the outer frame 21. The outer bend 51 is fixedly connected to the outer frame 21, and two connecting pipes 52 are fixedly connected to it. The two eccentric wheels 33 are respectively fixedly connected to the output shafts of two reduction motors I. Both reduction motors I are fixedly connected to the outer frame 21. When the two reduction motors I are started, they drive the two eccentric wheels 33 to rotate. The two eccentric wheels 33 mesh and drive the gear ring frame 32 to rotate, which in turn drives the inner bend 31 to rotate. The inner bend 31 and the two connecting pipes 52 are connected to an externally installed coolant supply device. Thus, the coolant circulates between the inner bend 31 and the outer bend 51 through the externally installed coolant supply device, thereby cooling the inner and outer walls of the PE pipe and achieving the forming of the PE pipe.

[0078] In conjunction with the above embodiments, the following functions can also be achieved;

[0079] refer to Figure 11 , 12 Sections 13 and 14 detail the implementation process of driving the transportation of molded PE pipes:

[0080] An end frame 61 is fixedly connected to the outer frame 21. Two cylinders II 62 are fixedly connected to the end frame 61. An auxiliary frame 63 is fixedly connected to the cylinder rods of the two cylinders II 62. A ring frame 64 is rotatably connected to the auxiliary frame 63. Two semi-arc plates 66 are rotatably connected inside the ring frame 64. Each of the two semi-arc plates 66 is fixedly connected to a corresponding clamping block 67. Two cylinders III 65 are fixedly connected to the ring frame 64. Thus, when transporting PE pipes, the two cylinders III 65 are activated, the cylinder rods of the two cylinders III 65 extend, and the cylinders III 65... The rod pushes the two semi-arc plates 66 closer together, and the two semi-arc plates 66 drive the two clamping blocks 67 closer together, thereby clamping the PE pipe with the two clamping blocks 67. Then, the two cylinders II 62 are activated, and the cylinder rods of the two cylinders II 62 extend. The cylinder rods of the two cylinders II 62 drive the auxiliary frame 63 to move, the auxiliary frame 63 drives the ring frame 64 to move, the ring frame 64 drives the two semi-arc plates 66 to move, and the two semi-arc plates 66 drive the two clamping blocks 67 to move, thereby realizing the transportation of the PE pipe and thus continuously manufacturing the PE pipe.

[0081] In conjunction with the above embodiments, the following functions can also be achieved;

[0082] refer to Figure 9 The implementation process of molding PE pipes is explained in detail:

[0083] The inner wall of the outer frame 21 is machined with a spiral groove, and the outer wall of the inner frame 23 is fixedly connected with a spiral protrusion, so that a tube 11 with spiral protrusions and grooves can be formed by the outer frame 21 and the inner frame 23.

Claims

1. A PE pipe, characterized in that: It includes a tube body (11) and a plurality of spiral protrusions fixed to the tube body (11), and a plurality of spiral grooves machined on the inner wall of the tube body (11) corresponding to the plurality of spiral protrusions.

2. A method for manufacturing a PE pipe according to claim 1, characterized in that, The manufacturing method includes the following steps: Step 1: Thoroughly mix the various raw materials; Step 2: Heat the raw material to a molten state and push it out; Step 3: Add the molten raw material into the outer frame (21) and inner frame (23) for molding; Step 4: Repeatedly push the added raw materials to fully form the PE pipe; Step 5: Cool and shape the formed PE pipe; Step Six: Reciprocating motion of the shaped PE pipe enables continuous manufacturing of the PE pipe.

3. The PE pipe manufacturing method according to claim 2, characterized in that: In step two, when the molten raw material is discharged, the attached raw material is scraped off completely before the material is discharged.

4. The PE pipe manufacturing method according to claim 2, characterized in that: The raw materials added in step four are pushed back and forth. Includes the following steps: S1: Push the pressing block (42) to slide and apply pressure to the raw material; S2: Pull the pressure block (42) to reset and release pressure at the same time.

5. The method for manufacturing PE pipes according to claim 2, characterized in that: The cooling process in step five includes the following steps: S1: Cooling the inner wall of the PE pipe by circulating coolant into the rotating inner bend (31); S2: Cool the outer wall of the PE pipe by circulating coolant in the outward bend (51).

6. The method for manufacturing PE pipes according to claim 2, characterized in that: Step six involves reciprocating the movement of the shaped PE pipe, which includes the following steps: S1: Drive the two clamping blocks (67) to approach and clamp the shaped PE pipe; S2: Drive the two clamping blocks (67) to move and transport PE pipes; S3: Drive the two clamping blocks (67) to separate and loosen the shaped PE pipe; S4: Drive the two clamping blocks (67) to reset and repeat the PE pipeline transportation.

7. The method for manufacturing PE pipes according to any one of claims 2-6, characterized in that: The outer frame (21) is fixedly connected to the inner frame (23). A guide frame (22) is fixedly connected to the outer frame (21). The pressure block (42) is slidably connected between the outer frame (21) and the inner frame (23). The pressure block (42) is fixedly connected to the cylinder rods of two cylinders I (41). Both cylinders I (41) are fixedly connected to the outer frame (21). A pressure relief pipe (24) is fixedly connected to the outer frame (21).

8. The method for manufacturing PE pipes according to claim 7, characterized in that: The inner bend (31) is fixed to the gear ring frame (32), the gear ring frame (32) is rotatably connected to the inner frame (23), and two eccentric wheels (33) that drive the gear ring frame (32) to rotate are rotatably connected to the outer frame (21). The outer bend (51) is fixed to the outer frame (21), and two connecting pipes (52) are fixed to the outer bend (51).

9. The method for manufacturing PE pipes according to claim 8, characterized in that: An end frame (61) is fixedly connected to the outer frame (21). Two cylinders II (62) are fixedly connected to the end frame (61). An auxiliary frame (63) is fixedly connected to the cylinder rods of the two cylinders II (62). A ring frame (64) is rotatably connected to the auxiliary frame (63). Two semi-arc plates (66) are rotatably connected inside the ring frame (64). Both semi-arc plates (66) are fixedly connected to the corresponding clamping blocks (67). Two cylinders III (65) are fixedly connected to the ring frame (64).

10. The method for manufacturing PE pipes according to claim 2, characterized in that: The inner wall of the outer frame (21) is machined with a spiral groove, and the outer wall of the inner frame (23) is fixed with a spiral protrusion.

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