CN102720899B - Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped strip forming die - Google Patents
Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped strip forming die Download PDFInfo
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- CN102720899B CN102720899B CN201210176928.6A CN201210176928A CN102720899B CN 102720899 B CN102720899 B CN 102720899B CN 201210176928 A CN201210176928 A CN 201210176928A CN 102720899 B CN102720899 B CN 102720899B
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Abstract
The invention relates to a polyethylene winding structure wall tooth-shaped pipe. The polyethylene winding structure wall tooth-shaped pipe comprises an inner wall layer and a covering layer, wherein the covering layer is an outwardly projected reinforcing rib formed in such a way that a tubular polyethylene strip covers a framework pipe and is wound on the outer surface of the inner wall layer; the outwardly projected reinforcing rib is spirally pressed at the lap-joint seam of the edges of the adjacent sheet-shaped polyethylene strips; the tubular polyethylene strip is a tooth-shaped tubular polyethylene strip with sawteeth formed on the outer wall; and uniformly distributed longitudinal grooves are formed in the outer wall of the tooth-shaped tubular polyethylene strip through the sawteeth. The invention further relates to a tooth-shaped strip forming die of the polyethylene winding structure wall tooth-shaped pipe. The polyethylene strip outlet of the tooth-shaped strip forming die is a tooth-shaped tubular strip outlet. According to the polyethylene winding structure wall tooth-shaped pipe, the covering layer is quick in radiating and shaping, the framework pipe is difficult to deform, the profile height is guaranteed, the product ring is large in height, and the designed ring stiffness can be completely achieved; and the tooth-shaped strip forming die can be used for extruding the tooth-shaped tubular strip. Therefore, the polyethylene winding structure wall tooth-shaped pipe and the tooth-shaped strip forming die can be widely applied to the field of plastic pipe processing.
Description
Technical field
The invention belongs to plastic tube manufacture field, particularly a kind of polyethylene spirally enwound structure-wall profile of tooth tubing and profile of tooth material strip molding port mould.
Background technique
Polyethylene spirally enwound structure-wall tubular product is that hot technique entwining tube be take high-density polyethylene resin as main raw material(s), adopt hot winding shaping process, the polypropylene skeleton pipe of take is auxiliary support structure, a kind of special construction wall pipe with higher critical external compressive resistance ability of making.Its mode of production: raw material is delivered to heating in extruder, plasticizing, homogenizing through vacuum feeder and be extruded into respectively flat material strip by runner, mouthful mould and in order to be coated the arc material strip of skeleton pipe, be equidistantly wrapped on die surface.At present, the arc material strip die geometry form of coated skeleton pipe has two kinds: the one, and U-shaped structure, half coated skeleton pipe, the 2nd, O type structure, encases skeleton pipe completely.The product that the mouth mould of these two kinds of structural types is produced, the arc material strip smooth outer surface of its coated skeleton pipe, form plane, the heat of material strip is difficult for distributing, when being equidistantly wrapped on die surface, easily makes skeleton pipe the deliquescing of being heated of skeleton pipe, type is high to be reduced, and makes product not reach design ring stiffness.For meeting the requirement of product ring stiffness, just need to increase the thickness of the arc material strip that is coated skeleton pipe, increased cost of production.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of skeleton pipe not yielding, assurance type is high, and product reaches polyethylene spirally enwound structure-wall profile of tooth tubing and the profile of tooth material strip molding port mould of the requirement of design ring stiffness.
The present invention solves its technical problem and realizes by the following technical solutions:
A kind of polyethylene spirally enwound structure-wall profile of tooth tubing, by inner wall layer and clad, formed, inner wall layer serve as reasons sheet shaped polyethylene material strip spiral winding and each adjacent material strip edge successively mutually overlap joint merge the continuous solid wall pipe forming, clad is wound in the evagination stiffening rib that inner wall layer outer surface forms after being coated skeleton pipe by tubular polyethylene material strip, the overlap joint of this evagination stiffening rib spiral cross-pressure in each adjacent sheet shaped polyethylene material strip edge melts commissure, it is characterized in that: described tubular polyethylene material strip is the serrate profile of tooth tubular polyethylene of outer wall system material strip, this profile of tooth tubular polyethylene material strip outer wall forms equally distributed longitudinal groove by sawtooth.
And the sectional shape of described profile of tooth tubular polyethylene material strip is: anti-" 9 " font of " O " shape, " U " shape, opening figure six, the anti-figure six of opening, opening " 9 " font or opening.
And the single tooth sectional shape of the described made sawtooth of profile of tooth tubular polyethylene material strip outer wall is trapezoidal, triangle, rectangle or circle.
A kind of profile of tooth material strip molding port mould of polyethylene spirally enwound structure-wall profile of tooth tubing, by mouth mould main body, formed, outlet end this mouthful of mould main body is shaped with coaxial skeleton pipe outlet and the outlet of polyethylene material strip, polyethylene material strip outlet ring is around the periphery of skeleton pipe outlet, it is characterized in that: described polyethylene material strip outlet is the outlet of profile of tooth tubulose material strip, the inner wall smooth of this profile of tooth tubulose material strip outlet, the outer wall of profile of tooth tubulose material strip outlet is shaped with uniform sawtooth.
And described profile of tooth tubulose material strip outlet is anti-" 9 " font of " O " shape, " U " shape, opening figure six, the anti-figure six of opening, opening " 9 " font or opening.
And the single tooth sectional shape that described profile of tooth tubulose material strip outlet outer wall is shaped with uniform sawtooth is triangle, trapezoidal, rectangle or circle.
Advantage of the present invention and beneficial effect are:
1. polyethylene spirally enwound structure-wall profile of tooth tubing of the present invention, the outer surface of the tubular polyethylene material strip (being clad) of coated skeleton pipe is no longer smooth flat, but zigzag fashion, form longitudinal groove, it has increased the heat diffusion area of cover surface, make clad rapid heat dissipation, sizing is fast, skeleton pipe is not yielding, the type that guaranteed is high, product ring height is high, can reach design ring stiffness completely.
2. polyethylene spirally enwound structure-wall profile of tooth tubing of the present invention, the sectional shape of profile of tooth tubular polyethylene material strip is: " U " shape, " O " shape, opening figure six, the anti-figure six of opening, anti-" 9 " font of opening " 9 " font or opening, except traditional totally enclosed type " O " shape, can also form semi-enclosed " U " shape, and the opening figure six of local opening, the anti-figure six of opening, anti-" 9 " font of opening " 9 " font or opening, like this, skeleton pipe is not completely encased, can be because of the deliquescing of being heated, simultaneously, coated material strip is difficult for forming bulge.When skeleton pipe is equidistantly wrapped on die surface, the afterbody material strip of anti-" 9 " the font tubular polyethylene material strip of opening figure six, the anti-figure six of opening, opening " 9 " font or opening is completely coated by skeleton pipe again, guaranteed that product type is high, improve ring stiffness, improved appearance quality.
3. profile of tooth material strip molding port mould of the present invention, its polyethylene material strip outlet outer tube wall changes serrated face into by light face, making the outer surface generation longitudinal groove of material strip is profile of tooth, thereby increase the heat diffusion area of material strip, heat easily distributes, guaranteed that product type is high, improved ring stiffness, improved appearance quality.
4. polyethylene spirally enwound structure-wall profile of tooth tubing of the present invention, clad rapid heat dissipation, sizing is fast, skeleton pipe is not yielding, the type that guaranteed is high, and product ring height is high, can reach design ring stiffness completely; Molding port mould of the present invention can be used for extruding profile of tooth tubulose material strip, and the present invention can be widely used in the technical field of plastic tube processing.
Accompanying drawing explanation
Fig. 1 is the structural representation of tubing of the present invention;
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 2 tubing of the present invention (" O " shape);
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 3 tubing of the present invention (" U " shape);
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 4 tubing of the present invention (opening figure six);
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 5 tubing of the present invention (the anti-figure six of opening);
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 6 tubing of the present invention (opening " 9 " font);
The sectional view of the tubular polyethylene material strip of the coated skeleton pipe of Fig. 7 tubing of the present invention (anti-" 9 " font of opening);
Fig. 8 is the structural representation (" O " shape) of profile of tooth material strip molding port mould of the present invention;
Fig. 9 is the structural representation (" U " shape) of profile of tooth material strip molding port mould of the present invention;
Figure 10 is the structural representation (opening " 6 " word) of profile of tooth material strip molding port mould of the present invention.
Figure 11 is the structural representation (rectangle sawtooth) of tubing of the present invention;
Figure 12 is the A portion enlarged view of Figure 11;
Figure 13 is the structural representation (circular sawtooth) of tubing of the present invention;
Figure 14 is the B portion enlarged view of Figure 11.
Description of reference numerals:
1-tubular polyethylene material strip, 2-skeleton pipe, 3-inner wall layer, 4-sawtooth, 5-longitudinal groove,
6-" U " shape material strip, 7-opening figure six material strip, the anti-figure six material strip of 8-opening,
Anti-" 9 " the font material strip of 9-opening " 9 " font material strip, 10-opening, 11-mouth mould main body,
The outlet of 12-polyethylene material strip, the outlet of 13-skeleton pipe, 14-sawtooth,
The outlet of 15-" U " shape profile of tooth tubulose material strip,
The outlet of 16-opening figure six profile of tooth tubulose material strip, 17-afterbody material strip, 18-rectangle sawtooth,
The circular sawtooth of 19-.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of polyethylene spirally enwound structure-wall profile of tooth tubing, by inner wall layer 3 and clad, formed, inner wall layer serve as reasons sheet shaped polyethylene material strip spiral winding and each adjacent material strip edge successively mutually overlap joint merge the continuous solid wall pipe forming, clad is wound in the evagination stiffening rib that inner wall layer outer surface forms after being coated skeleton pipe 2 by tubular polyethylene material strip 1, and the overlap joint of this evagination stiffening rib spiral cross-pressure in each adjacent sheet shaped polyethylene material strip edge melts commissure.The innovation of this tubing is: described tubular polyethylene material strip is the profile of tooth tubular polyethylene material strip that outer wall is shaped with sawtooth 4, and this profile of tooth tubular polyethylene material strip outer wall forms equally distributed longitudinal groove 5 by sawtooth.
The sectional shape of profile of tooth tubular polyethylene material strip is: anti-" 9 " font of " O " shape, " U " shape, opening figure six, the anti-figure six of opening, opening " 9 " font or opening.As shown in Fig. 2-7, be followed successively by: anti-" 9 " the font material strip 10 of " O " shape material strip, " U " shape material strip 6, opening figure six material strip 7, the anti-figure six material strip 8 of opening, opening " 9 " font material strip 9 or opening.
The sectional shape of profile of tooth tubular polyethylene material strip is except traditional totally enclosed type " O " shape, can also form semi-enclosed " U " shape, and anti-" 9 " font of the anti-figure six of opening figure six, opening of local opening, opening " 9 " font or opening, like this, skeleton pipe is not completely encased, can be because of the deliquescing of being heated, meanwhile, coated material strip is difficult for forming bulge.
The single tooth sectional shape of the made sawtooth of profile of tooth tubular polyethylene material strip outer wall is trapezoidal, triangle, rectangle or circle.As shown in Figure 11,12, the profile of tooth tubular polyethylene material strip outer wall of tubing is shaped with rectangle sawtooth 18, and as shown in Figure 13,14, the profile of tooth tubular polyethylene material strip outer wall of tubing is shaped with circular sawtooth 19.
For the profile of tooth tubular polyethylene material strip of anti-" 9 " font of opening figure six, the anti-figure six of opening, opening " 9 " font or opening, while being jointly equidistantly wrapped on die surface after the coated skeleton pipe of profile of tooth tubular polyethylene material strip, profile of tooth tubular polyethylene material strip afterbody material strip 17 is completely coated by skeleton pipe again, guaranteed that product type is high, improve ring stiffness, improved appearance quality.
A kind of profile of tooth material strip molding port mould of polyethylene spirally enwound structure-wall profile of tooth tubing, by mouth mould main body 11, formed, outlet end this mouthful of mould main body is shaped with coaxial skeleton pipe outlet 13 and polyethylene material strip outlet 12, polyethylene material strip outlet ring is around the periphery of skeleton pipe outlet, the innovation of this molding port mould is: described polyethylene material strip outlet is the outlet of profile of tooth tubulose material strip, the inner wall smooth of this profile of tooth tubulose material strip outlet, the outer wall of profile of tooth tubulose material strip outlet is shaped with uniform sawtooth 14.
Special mouth mould is different according to mounting point, its profile of tooth tubulose material strip outlet is " O " shape, " U " shape, and label is 15, opening figure six, label is 16, the anti-figure six of opening (figure slightly), opening " 9 " font (figure slightly) or anti-" 9 " font of opening (figure slightly).The single tooth sectional shape that profile of tooth tubulose material strip outlet outer wall is shaped with uniform sawtooth is trapezoidal, triangle, rectangle or circle.
After this special mouth mould is arranged on extruder, skeleton pipe goes out pipe from skeleton pipe exit position, the profile of tooth tubulose material strip of coated skeleton pipe, from its exit position discharging, forms the coated skeleton pipe of polyethylene, is equidistantly wrapped in and in tube surfaces, forms polyethylene spirally enwound structure-wall tubular product.
Although disclose for the purpose of illustration embodiments of the invention and accompanying drawing, but it will be appreciated by those skilled in the art that: within not departing from the spirit and scope of the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (6)
1. a polyethylene spirally enwound structure-wall profile of tooth tubing, by inner wall layer and clad, formed, inner wall layer serve as reasons sheet shaped polyethylene material strip spiral winding and each adjacent material strip edge successively mutually overlap joint merge the continuous solid wall pipe forming, clad is wound in the evagination stiffening rib that inner wall layer outer surface forms after being coated skeleton pipe by tubular polyethylene material strip, the overlap joint of this evagination stiffening rib spiral cross-pressure in each adjacent sheet shaped polyethylene material strip edge melts commissure, it is characterized in that: described tubular polyethylene material strip is the serrate profile of tooth tubular polyethylene of outer wall system material strip, this profile of tooth tubular polyethylene material strip outer wall forms equally distributed longitudinal groove by sawtooth.
2. polyethylene spirally enwound structure-wall profile of tooth tubing according to claim 1, is characterized in that: the sectional shape of described profile of tooth tubular polyethylene material strip is: anti-" 9 " font of " O " shape, " U " shape, opening figure six, the anti-figure six of opening, opening " 9 " font or opening.
3. polyethylene spirally enwound structure-wall profile of tooth tubing according to claim 1, is characterized in that: the single tooth sectional shape of the described made sawtooth of profile of tooth tubular polyethylene material strip outer wall is trapezoidal, triangle, rectangle or circle.
4. the profile of tooth material strip molding port mould of a polyethylene spirally enwound structure-wall profile of tooth tubing, by mouth mould main body, formed, outlet end this mouthful of mould main body is shaped with coaxial skeleton pipe outlet and the outlet of polyethylene material strip, polyethylene material strip outlet ring is around the periphery of skeleton pipe outlet, it is characterized in that: described polyethylene material strip outlet is the outlet of profile of tooth tubulose material strip, the inner wall smooth of this profile of tooth tubulose material strip outlet, the outer wall of profile of tooth tubulose material strip outlet is shaped with uniform sawtooth.
5. the profile of tooth material strip molding port mould of polyethylene spirally enwound structure-wall profile of tooth tubing according to claim 4, is characterized in that: described profile of tooth tubulose material strip outlet is anti-" 9 " font of " O " shape, " U " shape, opening figure six, the anti-figure six of opening, opening " 9 " font or opening.
6. the profile of tooth material strip molding port mould of polyethylene spirally enwound structure-wall profile of tooth tubing according to claim 4, is characterized in that: the single tooth sectional shape that described profile of tooth tubulose material strip outlet outer wall is shaped with uniform sawtooth is trapezoidal, triangle, rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176928.6A CN102720899B (en) | 2012-05-31 | 2012-05-31 | Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped strip forming die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176928.6A CN102720899B (en) | 2012-05-31 | 2012-05-31 | Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped strip forming die |
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| CN102720899A CN102720899A (en) | 2012-10-10 |
| CN102720899B true CN102720899B (en) | 2014-09-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202719283U (en) * | 2012-05-31 | 2013-02-06 | 韩路平 | Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped material strip forming die |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4838317A (en) * | 1980-10-14 | 1989-06-13 | Andre James R | Hydraulically efficient ribbed pipe |
| CN1191441C (en) * | 2002-11-18 | 2005-03-02 | 蒯一希 | Screw type corrugated plastic pipe material and its manufacturing method |
| CN100380040C (en) * | 2005-08-26 | 2008-04-09 | 王利群 | Coextruding heat winding structure wall pipe, processing method and method |
| CN100504134C (en) * | 2007-02-07 | 2009-06-24 | 李寿山 | Enhancement ultra-high molecular weight polyethylene wound pipe and manufacture method therefor |
| CN201424649Y (en) * | 2009-03-26 | 2010-03-17 | 任再永 | Building auxiliary pipe fitting with gear-shaped cross section |
| CN202056429U (en) * | 2011-04-19 | 2011-11-30 | 浙江东管管业有限公司 | Enhanced polymer winding composite pipe |
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| CN202719283U (en) * | 2012-05-31 | 2013-02-06 | 韩路平 | Polyethylene winding structure wall tooth-shaped pipe and tooth-shaped material strip forming die |
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