Single-wall corrugated pipe extruder head with preset pull wire

Abstract

The utility model discloses a single-wall corrugated pipe extruder head with a preset pull wire. The extruder head comprises an inner sleeve spiral body and a die sleeve which are fixedly connected from inside to outside. The front end of the inner sleeve spiral body is fixedly connected with an inner sleeve, and the front end of the inner sleeve is fixedly sleeved with a core mold; the front end of the die sleeve is fixedly connected with an outer sleeve; the core die is positioned between the outer sleeve and the inner sleeve; a gap is formed between the spiral body of the inner sleeve and the die sleeve, a cavity is formed between the outer sleeve and the inner sleeve, and the gap is communicated with the cavity; a gap between the core mold and the outer sleeve forms a pipe wall discharge hole, and the pipe wall discharge hole is communicated with the cavity; a feeding cavity is formed in the inner sleeve spiral body, and the front end of the feeding cavity is communicated with the gap; the inner wall of the inner sleeve spiral body and the inner wall of the inner sleeve jointly define a mold body inner cavity; a threading cavity is formed in the inner sleeve spiral body, the outer end of the threading cavity is communicated with the outer surface of the inner sleeve spiral body, and the inner end of the threading cavity is communicated with the inner cavity of the die body. And the single-wall corrugated pipe with the preset pull wire can be produced, the market requirement is met, and the use benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic corrugated pipe production and processing equipment, in particular to a single-wall corrugated pipe extruder head with a preset traction line. Background Art

[0002] When a corrugated tube is used as a threading sheath, a traction wire is required to pull the cable. Common plastic corrugated tubes are not manufactured with a lead wire, so the traction wire must be manually threaded through the corrugated tube used as the threading sheath. If the traction wire is made of a soft material, it will be difficult to pass it from the inlet to the outlet of the corrugated tube. If the traction wire is hard, it will be difficult to store the corrugated tube with the traction wire before construction. In addition, the diameter of the threading sheath is generally small, which is not conducive to manual threading and construction in a small space. The longer the connection distance of the threading sheath, the more difficult the construction will be, and it will be time-consuming and labor-intensive.

[0003] To meet market demand, the production of a single-wall corrugated pipe with a pre-set pull line is being considered. That is, the pull line can be pre-set inside the corrugated pipe during the production process. However, there is currently no production mold on the market that can produce corrugated pipes with pre-set pull lines. Summary of the Invention

[0004] In order to overcome the above-mentioned defects, the technical problem solved by the utility model is to provide a single-wall corrugated pipe extruder head with a preset traction line, which can produce single-wall corrugated pipes with preset traction lines, adapt to market demand, reduce the use cost of single-wall corrugated pipes, and improve the use efficiency.

[0005] In order to solve the above technical problems, the utility model is a single-wall corrugated pipe extruder head with a preset traction line, comprising: an inner sleeve spiral and a die sleeve fixedly connected from the inside to the outside; the direction of material advancement is defined as the front end, the front end of the inner sleeve spiral is fixedly connected to the inner sleeve, and the front end of the inner sleeve is fixedly sleeved with a core mold; the front end of the die sleeve is fixedly connected to an outer sleeve, and the core mold is located between the outer sleeve and the inner sleeve; a gap is formed between the inner sleeve spiral and the die sleeve, and a cavity is formed between the outer sleeve and the inner sleeve, and the gap is connected to the core mold. The cavity is connected; the gap between the core mold and the outer sleeve forms a tube wall outlet, and the tube wall outlet is connected to the cavity; a feed cavity is provided on the inner sleeve spiral body, the front end of the feed cavity is connected to the gap, and the rear end of the feed cavity is connected to the extruder discharge end; the inner wall of the inner sleeve spiral body and the inner wall of the inner sleeve together form the inner cavity of the mold body; the inner sleeve spiral body is also provided with a threading cavity, the outer end of the threading cavity is connected to the outer surface of the inner sleeve spiral body, and the inner end of the threading cavity is connected to the inner cavity of the mold body.

[0006] Furthermore, a threading tube is provided in the inner cavity of the mold body. The threading tube is arranged along the front-to-back direction. The front end of the threading tube extends out of the front end surface of the inner sleeve, and the rear end of the threading tube is connected to the threading cavity.

[0007] Furthermore, a threading seat A is provided on the outer surface of the inner sheath spiral body, and a threading seat A hole is provided on the threading seat A, and the threading seat A hole is connected to the threading cavity.

[0008] Furthermore, a threading seat B is fixedly provided on the front end surface of the core mold, and the threading seat B is provided with a threading seat B hole, and the front end of the threading tube is inserted into the threading seat B hole.

[0009] Furthermore, the outer diameter of the threading seat B is smaller than the outer diameter of the front end surface of the core mold.

[0010] Furthermore, a mounting seat is provided in the inner cavity of the mold body, and the mounting seat is provided with a mounting seat hole. The rear end of the threading tube is inserted into the mounting seat hole, and the mounting seat hole is communicated with the threading cavity.

[0011] Furthermore, a mold sleeve connecting ring is fixedly connected to the outer peripheral surface of the outer sleeve, and the mold sleeve connecting ring is fixedly connected to the mold sleeve.

[0012] Furthermore, the single-wall corrugated pipe extruder head with a preset traction line also includes a connecting flange, the front end of the connecting flange is fixedly connected to the rear end of the inner spiral body, and the rear end of the connecting flange is fixedly connected to the discharge end of the extruder.

[0013] Furthermore, an inner spiral connecting ring is fixedly provided on the outer circumferential surface of the connecting flange, and the inner spiral connecting ring is fixedly connected to the inner spiral.

[0014] Furthermore, the mold sleeve is fixedly connected to a front bracket and a rear bracket.

[0015] After adopting the above technical solution, the beneficial effect of the utility model is that a single-wall corrugated pipe extruder head with a preset traction line includes: an inner sleeve spiral body and a die sleeve fixedly connected from the inside to the outside. The direction of material advancement is defined as the front end, the front end of the inner sleeve spiral body is fixedly connected to the inner sleeve, and the front end of the inner sleeve is fixedly connected to the core mold; the front end of the die sleeve is fixedly connected to the outer sleeve, and the core mold is located between the outer sleeve and the inner sleeve; a gap is formed between the inner sleeve spiral body and the die sleeve, and a cavity is formed between the outer sleeve and the inner sleeve, and the gap is connected to the cavity; the gap between the core mold and the outer sleeve forms a pipe wall discharge port, and the pipe wall discharge port is connected to the cavity; a feed cavity is provided on the inner sleeve spiral body, the front end of the feed cavity is connected to the gap, and the rear end of the feed cavity is connected to the discharge end of the extruder; the inner wall of the inner sleeve spiral body and the inner wall of the inner sleeve together form the die inner cavity; the inner sleeve spiral body is also provided with a threading cavity, the outer end of the threading cavity is connected to the outer surface of the inner sleeve spiral body, and the inner end of the threading cavity is connected to the die inner cavity. The utility model discloses a single-wall corrugated pipe extruder head with a preset pulling line, which can produce single-wall corrugated pipes with a preset pulling line, adapts to market demand, reduces the use cost of the single-wall corrugated pipes, and improves the use efficiency.

[0016] Moreover, by machining a threading cavity and a feed cavity on the inner sleeve spiral that do not interfere with each other in space, the threading channel and the material channel flow path of the material extruded from the discharge end of the extruder do not interfere with each other, thereby realizing the independent realization of the two functions of tube forming and threading in a smaller space, reducing the risk of material leakage, reducing production costs, and improving the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a single-wall corrugated pipe extruder head with a preset traction line according to the present invention;

[0018] Figure 2 yes Figure 1 Side view of

[0019] Figure 3 yes Figure 1 Bottom view of

[0020] Figure 4 yes Figure 2 Cross-sectional view along the AA axis;

[0021] Figure 5 yes Figure 3 Cross-sectional view along the BB direction

[0022] In the figure: 1. Connecting flange; 2. Heater A; 3. Inner sleeve spiral connecting ring; 4. Heater B; 5. Lifting plate; 6. Inner sleeve spiral; 61. Feed cavity; 62. Threading cavity; 7. Die sleeve; 8. Mounting seat; 81. Mounting seat hole; 9. Heater C; 10. Heater D; 11. Outer sleeve; 12. Inner sleeve; 13. Heater E; 14. Heater F; 15. Core die; 16. Threading seat A; 161. Threading seat A hole; 17. Threading tube; 18. Die sleeve connecting ring; 19. Front bracket; 20. Rear bracket; 21. Threading seat B; 211. Threading seat B hole; 22. Heater G; 23. Extruder discharge end; 24. Gap; 25. Cavity. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 ,as well as Figure 5 As shown, a single-wall corrugated pipe extruder head with a preset traction line includes an inner sleeve spiral body 6 and a die sleeve 7 fixedly connected from the inside to the outside.

[0025] The direction of material advancement is defined as the front end. The front end of the inner sleeve spiral body 6 is fixedly connected to the inner sleeve 12. An external thread is provided on the outer circumference of the inner sleeve spiral body 6, and an internal thread is provided on the inner circumference of the inner sleeve 12. The inner sleeve spiral body 6 and the inner sleeve 12 are preferably connected by threads.

[0026] The front end of the inner sleeve 12 is fixedly sleeved with a core mold 15. The outer peripheral surface of the inner sleeve 12 is provided with an external thread, and the inner peripheral surface of the core mold 15 is provided with an internal thread. The inner sleeve 12 and the core mold 15 are preferably connected by threads.

[0027] The front end of the mold sleeve 7 is fixedly connected to the outer sleeve 11 , and the core mold 15 is located between the outer sleeve 11 and the inner sleeve 12 .

[0028] Preferably, a mold sleeve connecting ring 18 is fixedly connected to the outer peripheral surface of the outer sleeve 11 by threaded connection.

[0029] The mold sleeve connecting ring 18 is fixedly connected to the mold sleeve 7 by screws.

[0030] A gap 24 is formed between the inner sleeve spiral 6 and the mold sleeve 7, and a cavity 25 is formed between the outer sleeve 11 and the inner sleeve 12. The gap 24 is connected to the cavity 25. The gap between the core mold 15 and the outer sleeve 11 forms a pipe wall outlet, which is connected to the cavity 25.

[0031] Preferably, a feed cavity 61 is provided on the inner spiral body 6 , the front end of the feed cavity 61 is communicated with the gap 24 , and the rear end of the feed cavity 61 is communicated with the discharge end 23 of the extruder.

[0032] The inner wall of the inner sleeve spiral body 6 and the inner wall of the inner sleeve 12 together form the inner cavity of the mold.

[0033] A threading cavity 62 is further provided on the inner sheath spiral body 6 , the outer end of the threading cavity 62 is communicated with the outer surface of the inner sheath spiral body 6 , and the inner end of the threading cavity 62 is communicated with the inner cavity of the mold body.

[0034] Preferably, a threading tube 17 is provided in the inner cavity of the mold body. The threading tube 17 is arranged along the front-to-back direction. The front end of the threading tube 17 extends out of the front end surface of the inner sleeve 12 , and the rear end of the threading tube 17 is connected to the threading cavity 62 .

[0035] Further preferably, a threading seat A16 is fixed on the outer surface of the inner spiral body 6 by screws, and a threading seat A hole 161 is provided on the threading seat A16, and the threading seat A hole 161 is communicated with the threading cavity 62.

[0036] Further preferably, the front end surface of the core mold 15 is fixed with a threading seat B 21 by screws, and the threading seat B 21 is provided with a threading seat B hole 211, and the front end of the threading tube 17 is inserted into the threading seat B hole 211. The front end of the threading seat B hole 211 is flared to facilitate the pulling of the traction line.

[0037] Still more preferably, the outer diameter of the threading seat B 21 is smaller than the outer diameter of the front end surface of the core mold 15.

[0038] Preferably, a mounting seat 8 is fixedly provided in the mold body cavity, and the mounting seat 8 is provided with a mounting seat hole 81. The rear end of the threading tube 17 is inserted into the mounting seat hole 81, and the mounting seat hole 81 is connected to the threading cavity 62. The rear end of the mounting seat hole 81 is flared, which facilitates the smooth entry of the traction wire into the mounting seat hole 81.

[0039] Preferably, the single-wall corrugated pipe extruder head with a preset traction line further includes a connecting flange 1, the front end of the connecting flange 1 is fixedly connected to the rear end of the inner spiral body 6, and the rear end of the connecting flange 1 is fixedly connected to the extruder discharge end 23. The connecting flange cavity of the connecting flange 1 is communicated with the feed cavity 61 of the inner spiral body 6 and the extruder discharge end 23 at the same time.

[0040] Further preferably, an inner spiral connecting ring 3 is fixedly provided on the outer circumferential surface of the connecting flange 1 by means of threaded connection, and the inner spiral connecting ring 3 is fixedly connected to the inner spiral 6 by screws.

[0041] Further preferably, a hanging plate 5 is fixed on the inner spiral body 6 by screws.

[0042] Further preferably, a front bracket 19 and a rear bracket 20 are fixedly connected to the outer circumference of the mold sleeve 7 by screws.

[0043] Further preferably, a heater A 2 is provided on the outer circumferential surface of the connecting flange 1; a heater B 4 is provided on the outer circumferential surface of the inner spiral connecting ring 3; a heater C 9 is provided on the inner wall of the inner spiral 6; a heater D10 is provided on the outer circumferential surface of the die sleeve 7; a heater E13 is provided on the inner wall of the inner sleeve 12, and the heater E13 is preferably a spring heater; a heater F14 is provided on the outer circumferential surface of the outer sleeve 11; and a heater G 22 is provided on the outer circumferential surface of the extruder discharge end 23.

[0044] The following describes in detail the process of using the single-wall corrugated pipe extruder head with a preset pulling line of the utility model to process the single-wall corrugated pipe with a preset pulling line:

[0045] During the production process of the tube body, the material flows out of the extruder discharge end 23, then passes through the connecting flange 1 into the feed cavity 61 of the inner spiral body 6, then enters the gap 24, is homogenized through the spiral groove, enters the cavity 25, and finally is extruded from the discharge port of the tube wall to form a tube body.

[0046] At the same time, the traction line enters the threading cavity 62 of the inner sheath spiral body 6 from the threading seat A hole 161 of the threading seat A16, then enters the mounting seat hole 81 of the mounting seat 8, then enters the threading tube 17, and finally, is pulled out from the threading seat B hole 211 of the threading seat B 21.

[0047] A single-wall corrugated pipe with a preset pulling line is formed.

[0048] The technical features named with serial numbers in this manual (heater A, heater B, heater C, heater D, heater E, heater F, heater G, threading seat A, threading seat A hole, threading seat B, threading seat B hole, etc.) are only for distinguishing the various technical features and do not represent the positional relationship, installation sequence and working sequence between the various technical features.

[0049] In the description of this specification, it should be understood that the orientations or positional relationships described in terms of “inner sleeve spiral connecting ring”, “inner sleeve spiral”, “outer sleeve”, “inner sleeve”, “front bracket”, “rear bracket”, “inside to outside”, “front end”, “inner wall”, “inner surface”, “outer surface”, “mold body cavity”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by ordinary technicians in this field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. A single-wall corrugated pipe extruder head with a preset traction line, characterized in that: include: An inner sleeve spiral body and a mold sleeve fixedly connected from the inside to the outside; The material advance direction is defined as the front end, the front end of the inner sleeve spiral is fixedly connected to the inner sleeve, the front end of the inner sleeve is fixedly sleeved with a core mold; the front end of the mold sleeve is fixedly connected to the outer sleeve, and the core mold is located between the outer sleeve and the inner sleeve; A gap is formed between the inner sleeve spiral and the mold sleeve, a cavity is formed between the outer sleeve and the inner sleeve, and the gap is connected to the cavity; the gap between the core mold and the outer sleeve forms a tube wall discharge port, and the tube wall discharge port is connected to the cavity; The inner spiral body is provided with a feed cavity, the front end of the feed cavity is communicated with the gap, and the rear end of the feed cavity is communicated with the discharge end of the extruder; The inner wall of the inner sleeve spiral and the inner wall of the inner sleeve together form an inner cavity of the mold; The inner sheath spiral body is further provided with a threading cavity, the outer end of the threading cavity is communicated with the outer surface of the inner sheath spiral body, and the inner end of the threading cavity is communicated with the inner cavity of the mold body.

2. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 1, characterized in that: A threading tube is provided in the inner cavity of the mold body. The threading tube is arranged along the front-to-back direction. The front end of the threading tube extends out of the front end surface of the inner sleeve, and the rear end of the threading tube is communicated with the threading cavity.

3. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 2, characterized in that: A threading seat A is provided on the outer surface of the inner sheath spiral body. A threading seat A hole is provided on the threading seat A. The threading seat A hole is communicated with the threading cavity.

4. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 3, characterized in that: A threading seat B is fixedly provided on the front end surface of the core mold, and the threading seat B is provided with a threading seat B hole. The front end of the threading tube is inserted into the threading seat B hole.

5. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 4, characterized in that: The outer diameter of the threading seat B is smaller than the outer diameter of the front end surface of the core mold.

6. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 4, characterized in that: A mounting seat is provided in the inner cavity of the mold body, and the mounting seat is provided with a mounting seat hole. The rear end of the threading tube is inserted into the mounting seat hole, and the mounting seat hole is communicated with the threading cavity.

7. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 1, characterized in that: A mold sleeve connecting ring is fixedly connected to the outer circumferential surface of the outer sleeve, and the mold sleeve connecting ring is fixedly connected to the mold sleeve.

8. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 1, characterized in that: The single-wall corrugated pipe extruder head with a preset traction line also includes a connecting flange, the front end of which is fixedly connected to the rear end of the inner spiral body, and the rear end of the connecting flange is fixedly connected to the discharge end of the extruder.

9. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 8, characterized in that: An inner sleeve spiral connecting ring is fixedly provided on the outer circumferential surface of the connecting flange, and the inner sleeve spiral connecting ring is fixedly connected to the inner sleeve spiral.

10. The single-wall corrugated pipe extruder head with a preset pulling line according to claim 1, characterized in that: The mold sleeve is fixedly connected with a front bracket and a rear bracket.

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