Steel wire embedded pipe wall type polyethylene hollow wall winding pipe production equipment and process

By embedding steel wire into the groove of the hollow tube during the production process of polyethylene hollow wall spiral pipe and using a heated embedding module to tighten the steel wire, the problem of spiral layer detachment caused by the elastic force of the steel wire is solved, resulting in stronger adhesion and longer service life.

CN120902294BActive Publication Date: 2026-07-03GUANGDONG LONGSU PIPE IND CO LTD
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Patent Information

Application Number
CN202511173316.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-07-03
Estimated Expiration
2045-08-21

AI Technical Summary

Technical Problem

During use, the elastic force of the steel wires in traditional polyethylene hollow wall spiral pipes causes the polyethylene between the spiral layers to detach, affecting service life and product quality.

Method used

The steel wire embedding tube wall production equipment is used to embed the steel wire into the groove of the hollow tube. The steel wire is fixed in the groove by heating the embedding module, which reduces the impact of the steel wire on the polyethylene. Molten polyethylene is used for bonding during the bonding process.

Benefits of technology

It improves the bonding strength between the spiral layers, reduces the risk of steel wire detachment, and extends the service life and product quality of polyethylene hollow wall spiral pipe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a steel wire embedding pipe wall type polyethylene hollow wall winding pipe production equipment and a production process thereof. The production equipment comprises a conveying limiting mechanism, a conveying embossing mechanism and a steel wire heating embedding mechanism. The conveying limiting mechanism comprises a conveying assembly line and a limiting roller assembly. The conveying embossing mechanism comprises a seat body, a conveying roller, an embossing roller and a conveying motor. The conveying embossing channel is formed between the conveying roller and the embossing roller and is used for conveying and embossing the hollow pipe. The steel wire heating embedding mechanism comprises a steel wire unwinding disc, a gantry, a lifting driving part, a horizontal moving driving part and a heating embedding module. The steel wire unwinding disc is used for providing the steel wire for the heating embedding module. The heating embedding module is used for embedding the steel wire into the groove of the hollow pipe wall. The application changes the traditional structure and process, embeds the steel wire into the side wall of the hollow pipe, reduces the influence of the steel wire elastic force on the polyethylene and makes the adhesion between two spiral layers more firm.
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Description

Technical Field

[0001] This invention relates to the field of polyethylene hollow wall spiral pipe production technology, and in particular to a steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment and process. Background Technology

[0002] like Figure 1 The diagram shows the structure of a conventional polyethylene hollow-wall spiral wound tube 10. This polyethylene hollow-wall spiral wound tube 10 is obtained by spirally bending a straight hollow tube. The spirally bent polyethylene hollow-wall spiral wound tube 10 contains several spiral layers 11. Adjacent spiral layers 11 are bonded together by molten polyethylene 13. To increase the structural strength of the entire polyethylene hollow-wall spiral wound tube, the industry practice is to insert steel wires 12 (such as...) between two spiral layers 11. Figure 2 (As shown). During the process of spirally bending the straight hollow tube and bonding the two spiral layers 11, the steel wire 12 is also inserted into it. For the specific production process of the conventional polyethylene hollow wall spiral tube 10, please refer to the existing technology, such as CN112848240A.

[0003] like Figure 2 As shown, it is Figure 1 A cross-sectional view of the polyethylene hollow-wall spiral wound pipe 10 shown. Figure 2 It can be visually observed that the steel wire 12 is located between the two spiral layers 11 and embedded within the solidified polyethylene 13. During prolonged use of the polyethylene hollow wall spiral pipe 10, the polyethylene 13 between the two spiral layers 11 will age. Combined with the elastic force exerted by the steel wire 12 on the polyethylene 13, this makes it easy for the polyethylene 13 between the two spiral layers 11 to detach, leading to the exposure of the steel wire 12 and thus affecting the overall service life of the polyethylene hollow wall spiral pipe 10. Furthermore, the two spiral layers 11 are bonded together by molten polyethylene 13. Since the molten polyethylene 13 requires a certain amount of time to solidify, during this time, the molten polyethylene 13 is insufficient to firmly fix the steel wire 12, causing the elastic steel wire 12 to shift, resulting in compromised product quality. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment and process. It changes the traditional structure and process by embedding the steel wire in the side wall of the hollow pipe, reducing the influence of the steel wire elastic force on the polyethylene, and making the two spiral layers bond more firmly.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment is used to embed steel wire into the groove of the hollow pipe wall, including: a conveying and limiting mechanism, a conveying embossing mechanism, and a steel wire heating and embedding mechanism.

[0007] The conveying limiting mechanism includes: a conveying assembly line and a limiting roller assembly disposed on the conveying assembly line; the conveying assembly line is used to place the hollow tube, and the limiting roller assembly is used to clamp the hollow tube;

[0008] The conveying embossing mechanism includes: a base, a conveying roller, an embossing roller, and a conveying motor driven by the conveying roller; the conveying roller and the embossing roller are rotatably mounted on the base, and a conveying embossing channel is formed between the conveying roller and the embossing roller, the conveying embossing channel being used to convey and emboss the hollow tube.

[0009] The wire heating and embedding mechanism includes: a wire unwinding reel, a gantry base, and a lifting drive unit, a lateral drive unit, and a heating and embedding module mounted on the gantry base; the lifting drive unit is used to drive the heating and embedding module to move vertically, and the lateral drive unit is used to drive the heating and embedding module to move horizontally; the wire unwinding reel is used to provide wire to the heating and embedding module, and the heating and embedding module is used to embed the wire into the groove of the hollow tube wall.

[0010] In one embodiment, the heating embedding module includes: a mold base, a heating nozzle, a conveying roller, a clamping roller, and a conveying motor; the heating nozzle is mounted on the mold base, the conveying roller and the clamping roller are rotatably mounted on the mold base and located at the feed end of the heating nozzle, and the conveying motor is driven by the conveying roller through a gear set.

[0011] In one embodiment, the conveyor line includes a straight conveyor seat and a plurality of conveyor rollers, the plurality of conveyor rollers being distributed sequentially at intervals along the extension direction of the conveyor seat to form a conveying channel, the conveyor seat having a tube input end and a tube output end, and the conveying embossing mechanism being located at the tube output end of the conveyor seat.

[0012] In one embodiment, the wire heating and embedding mechanism is located in the middle of the conveyor seat, and the limiting roller assembly is located below the gantry seat. The limiting roller assembly includes a left limiting roller and a right limiting roller, which are located on both sides of the conveying channel, respectively.

[0013] In one embodiment, the number of the limiting roller assemblies is two sets.

[0014] In one embodiment, the lifting drive unit includes: a lifting motor, a lifting screw, and a lifting seat; the lifting seat is slidably disposed on the gantry seat in a vertical direction, and the lifting motor drives the lifting seat to move up and down in a vertical direction through the lifting screw.

[0015] In one embodiment, the lateral drive unit includes: a lateral motor, a belt, and a translation seat; the translation seat is slidably disposed on the lifting seat in the horizontal direction, and the lateral motor drives the translation seat to translate in the horizontal direction via the belt.

[0016] A production process for steel wire-embedded polyethylene hollow wall spiral wound pipe, based on the aforementioned steel wire-embedded polyethylene hollow wall spiral wound pipe production equipment, includes the following steps:

[0017] Step 1: Obtain a hollow tube, place the hollow tube on the conveying limiting mechanism, and clamp one end of the hollow tube in the conveying embossing channel; the hollow tube wall has an infinitely extending groove, so that the groove faces the heating embedding module.

[0018] Step 2: Start the conveyor motor. The conveyor motor drives the conveyor roller to rotate, which in turn drives the hollow tube in the embossing channel to make a linear conveying motion. The embossing roller presses the pattern into the wall of the hollow tube. At the same time, start the heating embedding module. The heating embedding module is used to heat the steel wire and continuously embed the steel wire into the groove in the wall of the hollow tube.

[0019] Step 3: Turn off the conveyor motor and the heating embedding module, and remove the hollow tube with embedded steel wire;

[0020] Step four: The hollow tube embedded with steel wire is spirally bent, and molten polyethylene is used to bond two adjacent spiral layers together to obtain a polyethylene hollow wall spiral tube.

[0021] In one embodiment, if the tank extends in a curved manner along the extension line of the hollow tube wall, then in step two, the transverse drive unit is activated. The transverse drive unit drives the heating embedding module to reciprocate in the horizontal direction, accompanied by the linear transmission movement of the hollow tube, thereby realizing the bending embedding of the steel wire into the curved extension tank.

[0022] The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment and process of the present invention changes the traditional structure and process, embedding the steel wire in the side wall of the hollow pipe, reducing the influence of the elastic force of the steel wire on the polyethylene, and making the two spiral layers bond more firmly. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of a traditional polyethylene hollow wall spiral pipe;

[0025] Figure 2 for Figure 1 A cross-sectional view of a polyethylene hollow-wall spiral pipe shown;

[0026] Figure 3 This is a perspective view of a steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to an embodiment of the present invention;

[0027] Figure 4 for Figure 3 A top view of the steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment shown;

[0028] Figure 5 for Figure 3 The diagram shows the structure of the wire heating and embedding mechanism.

[0029] Figure 6 for Figure 5 The diagram shows the structure of the heating embedded module.

[0030] Figure 7 This is a cross-sectional view of the polyethylene hollow wall wound tube of the present invention. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figure 3 As shown, this invention discloses a steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment 20, used to embed steel wire 30 into the groove 41 of the pipe wall of hollow pipe 40. It should be noted that the hollow pipe 40, when not spirally bent, has a straight, infinitely extending structure, and its interior is hollow, hence the name hollow pipe. The hollow pipe is obtained by injection molding, and the groove 41 at its pipe wall can be obtained by grooving with a grooving machine. The cross-section of the groove 41 is approximately circular, matching the cross-sectional shape of the steel wire 30. The opening of the groove 41 narrows to form a narrow opening 42 (e.g., ...). Figure 3 and Figure 7 As shown in the diagram, when the steel wire 30 is embedded in the groove 41, the narrow opening 42 effectively prevents the steel wire 30 from detaching from the groove 41. To ensure the steel wire 30 can be smoothly embedded in the groove 41, the present invention primarily heats the steel wire 30. The heated steel wire 30 conducts heat to the groove 41, causing the polyethylene groove 41 to slightly melt and deform. The steel wire 30 is then embedded using this melting and deformation. After cooling, the groove 41 re-solidifies and regains its hardness, securing the steel wire 30 within it.

[0035] like Figure 3 As shown, the steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment 20 of the present invention includes: a conveying and limiting mechanism 100, a conveying and embossing mechanism 200, and a steel wire heating and embedding mechanism 300.

[0036] like Figure 4 As shown, the conveying limiting mechanism 100 includes: a conveying line 110 and a limiting roller assembly 120 disposed on the conveying line 110. The conveying line 110 is used to place the hollow tube 40, and the limiting roller assembly 120 is used to clamp the hollow tube 40.

[0037] The specific structure of the aforementioned conveying and limiting mechanism 100 will be described below:

[0038] like Figure 4As shown, the conveyor line 110 includes a straight conveyor seat 111 and several conveyor rollers 112. The several conveyor rollers 112 are distributed sequentially at intervals along the extension direction of the conveyor seat 111 to form a conveying channel 113. The conveyor seat 111 has a tube input end 111a and a tube output end 111b. The conveying embossing mechanism 200 is located at the tube output end 111b of the conveyor seat 111.

[0039] like Figure 3 As shown, the conveying embossing mechanism 200 includes: a base 210, a conveying roller 220, an embossing roller 230, and a conveying motor 240 drivenly connected to the conveying roller 220. The conveying roller 220 and the embossing roller 230 are rotatably mounted on the base 210, and a conveying embossing channel is formed between the conveying roller 220 and the embossing roller 230. The conveying embossing channel is used to convey and emboss the hollow tube 40.

[0040] like Figure 3 and Figure 5 As shown, the wire heating and embedding mechanism 300 includes: a wire unwinding reel 310, a gantry base 320, and a lifting drive unit 330, a lateral drive unit 340, and a heating and embedding module 350 mounted on the gantry base 320. The lifting drive unit 330 drives the heating and embedding module 350 to move vertically, and the lateral drive unit 340 drives the heating and embedding module 350 to move horizontally. The wire unwinding reel 310 provides wire 30 to the heating and embedding module 350, which embeds the wire 30 into the groove 41 of the hollow tube 40 wall.

[0041] like Figure 3 and Figure 4 As shown, the wire heating and embedding mechanism 300 is located in the middle of the conveyor seat 111, and the limiting roller assembly 120 is located below the gantry seat 320. The limiting roller assembly 120 includes a left limiting roller 121 and a right limiting roller 122, which are located on both sides of the conveying channel 113. In this embodiment, there are two sets of limiting roller assemblies 120.

[0042] The specific structures of the lifting drive unit 330, the lateral drive unit 340, and the heating embedded module 350 described above will be explained below:

[0043] like Figure 5 As shown, the lifting drive unit 330 includes: a lifting motor 331, a lifting screw 332, and a lifting seat 333. The lifting seat 333 is slidably mounted on the gantry seat 320 in the vertical direction, and the lifting motor 331 drives the lifting seat 333 to move up and down in the vertical direction through the lifting screw 332.

[0044] like Figure 5As shown, the transverse drive unit 340 includes: a transverse motor 341, a belt 342, and a translation seat 343. The translation seat 343 is slidably mounted on the lifting seat 333 in the horizontal direction, and the transverse motor 341 drives the translation seat 343 to move in the horizontal direction via the belt 342.

[0045] like Figure 6 As shown, the heating embedding module 350 includes: a mold base 351, a heating nozzle 352, a conveying roller 353, a clamping roller 354, and a conveying motor 355. The heating nozzle 352 is mounted on the mold base 351. The conveying roller 353 and the clamping roller 354 are rotatably mounted on the mold base 351 and located at the feed end of the heating nozzle 352. The conveying motor 355 is driven by the conveying roller 353 through a gear set 356.

[0046] The working principle of the steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment 20 described above will be explained below:

[0047] An infinitely extended straight hollow tube 40 is placed on the conveyor line 110 of the conveying limiting mechanism 100. The hollow tube 40 below the heating embedding module 350 is clamped by the limiting roller assembly 120 to prevent the hollow tube 40 from swaying and improve the stability of production. The groove 41 is oriented towards the heating embedding module 350 so that the heating embedding module 350 can embed the steel wire 30 into the groove 41. One end of the hollow tube 40 is clamped in the conveying embossing channel between the conveying roller 220 and the embossing roller 230.

[0048] The position of the heating embedded module 350 is adjusted by the lifting drive unit 330 and the lateral drive unit 340 so that the heating nozzle 352 is aligned with the groove 41.

[0049] Start the conveyor motor 240, which drives the conveyor roller 220 to rotate. Since the hollow tube 40 is clamped between the conveyor roller 220 and the embossing roller 230, the conveyor roller 220 can drive the hollow tube 40 in the embossing channel to make a linear conveying motion.

[0050] Simultaneously, the heating embedding module 350 is activated, and the conveying motor 355 drives the conveying roller 353 to rotate through the gear set 356. Since the steel wire 30 is clamped between the conveying roller 353 and the clamping roller 354, the steel wire 30 at the steel wire unwinding reel 310 can continuously enter the heating nozzle 352 from the feeding end. The heating wire in the heating nozzle 352 heats the steel wire 30 and then comes out from the discharge end and enters the tank 41. The heated steel wire 30 can conduct heat to the tank 41. The polyethylene tank 41 is slightly melted and deformed by the heat. Thus, the steel wire 30 uses this melting and deformation to achieve embedding. After cooling, the tank 41 resolidifies and restores its hardness, securing the steel wire 30 within it.

[0051] The conveying embossing mechanism 200 continuously drives the hollow tube 40 to make linear conveying motion, and the heated steel wire 30 continuously comes out from the heating nozzle 352. Thus, the steel wire 30 can be continuously embedded in the groove 41 of the hollow tube 40.

[0052] When the hollow tube 40 with embedded steel wire 30 reaches the conveying embossing mechanism 200, the embossing roller 230 on it will roll the tube wall of the hollow tube 40. On the one hand, it can further compact the steel wire 30 into the groove 41 to prevent the steel wire 30 from leaking out. On the other hand, it will emboss the surrounding part of the groove 41 to obtain a rough texture. In the subsequent bonding process, when the two spiral layers are bonded with molten polyethylene, this rough texture can make the two spiral layers bond more firmly and less likely to slip off.

[0053] After obtaining the hollow tube 40 of the specified length embedded with steel wire 30, turn off the conveyor motor 240 and the heating embedding module 350, and take out the hollow tube 40 embedded with steel wire 30 (the part of the hollow tube without steel wire 30 at the beginning can be cut off).

[0054] The hollow tube 40 embedded with steel wire 30 is spirally bent, and two adjacent spiral layers are bonded together with molten polyethylene to obtain the polyethylene hollow wall wound tube desired by the present invention; the process of spiral bending and bonding the hollow tube 40 can be referred to the prior art.

[0055] Since the steel wire 30 is embedded in the wall of the hollow tube 40, the elastic force generated by the steel wire 30 during the spiral bending of the hollow tube 40 is borne by the groove 41 of the hollow tube 40, rather than by the temporarily molten polyethylene, preventing the steel wire 30 from detaching. Furthermore, compared to traditional processes, the steel wire 30 is no longer located between the two spiral layers, allowing for a smooth and even contact between the two spiral layers. The rough texture on the spiral layers further enhances the bond, preventing slippage. This invention first embeds the steel wire 30 into the wall of the hollow tube 40, then spirally bends and bonds the hollow tube 40 containing the steel wire 30, resulting in high production stability. This contrasts with traditional processes where the steel wire is placed between the two spiral layers of the hollow tube while it is being spirally bent.

[0056] This invention also discloses a production process for steel wire-embedded polyethylene hollow wall spiral pipe, implemented based on the aforementioned steel wire-embedded polyethylene hollow wall spiral pipe production equipment 20, comprising the following steps:

[0057] Step 1: Obtain a hollow tube 40, place the hollow tube 40 on the conveying limiting mechanism 100, and clamp one end of the hollow tube 40 in the conveying embossing channel; the hollow tube 40 has an infinitely extending groove 41 on its tube wall, so that the groove 41 faces the heating embedding module 350.

[0058] Step 2: Start the conveyor motor 240. The conveyor motor 240 drives the conveyor roller 220 to rotate, which in turn drives the hollow tube 40 in the embossing channel to make a linear conveying motion. The embossing roller 230 presses the pattern into the tube wall of the hollow tube 40. At the same time, start the heating embedding module 350. The heating embedding module 350 is used to heat the steel wire 30 and continuously embed the steel wire 30 into the groove 41 in the tube wall of the hollow tube 40.

[0059] Step 3: Turn off the conveyor motor 240 and the heating embedded module 350, and remove the hollow tube 40 with the embedded steel wire 30.

[0060] Step four: The hollow tube 40 embedded with steel wire 30 is spirally bent, and the two adjacent spiral layers are bonded together with molten polyethylene to obtain a polyethylene hollow wall spiral tube.

[0061] Furthermore, in this invention, in order to make the hollow tube 40 have more steel wire per unit length, the structure of the groove 41 can be improved so that the groove 41 extends in a curved manner along the extension line of the hollow tube 40 wall (e.g., Figure 3 As shown in the figure, the hollow tube 40 per unit length will have more steel wire, thereby further improving the strength of the entire tube.

[0062] In order to accommodate the curved extension of the groove 41 along the extension line of the hollow tube 40, during the process of embedding the steel wire 30 using the heating embedding module 350, the transverse drive unit 340 is also activated. The transverse drive unit 340 drives the heating embedding module 350 to reciprocate in the horizontal direction, accompanied by the linear transmission movement of the hollow tube 40, thereby realizing the curved embedding of the steel wire 30 into the curved extension groove 41.

[0063] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A steel wire embedded into the wall of a polyethylene hollow wall winding pipe production equipment for embedding steel wire into the groove of the wall of a hollow pipe, the hollow pipe is obtained by injection molding extrusion forming, the groove of the wall of the hollow pipe is obtained by grooving machine, the groove extends along the extension direction of the wall of the hollow pipe in a curved manner, the cross section of the groove is circular arc shape, which matches the cross section shape of the steel wire, the opening of the groove is narrowed to form a narrow opening, characterized in that, include: Conveying limit mechanism, conveying embossing mechanism, steel wire heating and embedding mechanism; The conveying limiting mechanism includes: a conveying assembly line and a limiting roller assembly disposed on the conveying assembly line; the conveying assembly line is used to place the hollow tube, and the limiting roller assembly is used to clamp the hollow tube; The conveying embossing mechanism includes: a base, a conveying roller, an embossing roller, and a conveying motor driven by the conveying roller; the conveying roller and the embossing roller are rotatably mounted on the base, and a conveying embossing channel is formed between the conveying roller and the embossing roller, the conveying embossing channel being used to convey and emboss the hollow tube. The wire heating and embedding mechanism includes: a wire unwinding reel, a gantry base, and a lifting drive unit, a lateral drive unit, and a heating and embedding module mounted on the gantry base; the lifting drive unit is used to drive the heating and embedding module to move vertically up and down, and the lateral drive unit is used to drive the heating and embedding module to move horizontally back and forth; the wire unwinding reel is used to provide wire to the heating and embedding module, and the heating and embedding module is used to embed the wire into the curved extension groove of the hollow tube wall.

2. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 1, characterized in that, The heating embedding module includes: a mold base, a heating nozzle, a conveying roller, a clamping roller, and a conveying motor; the heating nozzle is mounted on the mold base, the conveying roller and the clamping roller are rotatably mounted on the mold base and located at the feeding end of the heating nozzle, and the conveying motor is driven by the conveying roller through a gear set.

3. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 1, characterized in that, The conveyor line includes a straight conveyor seat and several conveyor rollers. The several conveyor rollers are distributed sequentially at intervals along the extension line of the conveyor seat to form a conveying channel. The conveyor seat has a tube input end and a tube output end. The conveying embossing mechanism is located at the tube output end of the conveyor seat.

4. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 3, characterized in that, The wire heating and embedding mechanism is located in the middle of the conveyor seat, and the limiting roller assembly is located below the gantry seat. The limiting roller assembly includes a left limiting roller and a right limiting roller, which are located on both sides of the conveying channel, respectively.

5. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 4, characterized in that, The number of the limiting roller assemblies is two sets.

6. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 1, characterized in that, The lifting drive unit includes: a lifting motor, a lifting screw, and a lifting seat; the lifting seat is slidably mounted on the gantry seat in the vertical direction, and the lifting motor drives the lifting seat to move up and down in the vertical direction through the lifting screw.

7. The steel wire embedded in the pipe wall type polyethylene hollow wall spiral pipe production equipment according to claim 6, characterized in that, The lateral movement drive unit includes: a lateral movement motor, a belt, and a translation seat; the translation seat is slidably disposed on the lifting seat in the horizontal direction, and the lateral movement motor drives the translation seat to move in the horizontal direction via the belt.

8. A manufacturing process for a steel wire-embedded polyethylene hollow-wall spiral pipe, characterized in that, The production equipment for steel wire embedded polyethylene hollow wall spiral pipe according to any one of claims 1 to 7 includes the following steps: Step 1: Obtain a hollow tube. The hollow tube is formed by injection extrusion molding. The groove on its tube wall is obtained by grooving with a grooving machine. The groove extends in a curved manner along the extension line of the hollow tube wall. The cross-section of the groove is arc-shaped, matching the cross-sectional shape of the steel wire. The opening of the groove narrows to form a narrow opening. The hollow tube is placed on the conveying limiting mechanism, and one end of the hollow tube is clamped in the conveying embossing channel. The hollow tube wall has an infinitely extending groove, so that the groove faces the heating embedding module. Step 2: Start the conveyor motor. The conveyor motor drives the conveyor roller to rotate, which in turn drives the hollow tube in the embossing channel to make a linear conveying motion. The embossing roller presses patterns into the tube wall of the hollow tube. The transverse drive unit is activated, which drives the heating embedding module to reciprocate horizontally. Simultaneously, along with the linear conveying motion of the hollow tube, the heating embedding module is activated to heat the steel wire. The heated steel wire conducts heat to the tank, and the polyethylene tank melts and deforms upon heating, continuously embedding the steel wire into the curved extension of the hollow tube wall. Step 3: Turn off the conveyor motor and the heating embedding module, and remove the hollow tube with embedded steel wire; Step four: The hollow tube embedded with steel wire is spirally bent, and molten polyethylene is used to bond two adjacent spiral layers together to obtain a polyethylene hollow wall spiral tube.

Citation Information

Patent Citations

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