CN104676142A - Pipeline with inner rib winding structure wall reinforced by polypropylene framework and manufacturing method of pipeline - Google Patents
Pipeline with inner rib winding structure wall reinforced by polypropylene framework and manufacturing method of pipeline Download PDFInfo
- Publication number
- CN104676142A CN104676142A CN201510056453.0A CN201510056453A CN104676142A CN 104676142 A CN104676142 A CN 104676142A CN 201510056453 A CN201510056453 A CN 201510056453A CN 104676142 A CN104676142 A CN 104676142A
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- CN
- China
- Prior art keywords
- internal
- rib
- tube
- base tube
- reinforced pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 32
- -1 polypropylene Polymers 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000004743 Polypropylene Substances 0.000 title abstract 2
- 229920001155 polypropylene Polymers 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 14
- 241000826860 Trapezium Species 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 8
- 239000002985 plastic film Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 1
- 206010057071 Rectal tenesmus Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 208000012271 tenesmus Diseases 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a pipeline with an inner rib winding structure wall reinforced by a polypropylene framework and a manufacturing method of the pipeline. The pipeline and the manufacturing method thereof have the advantages that since a corrugated pipe is formed by winding multiple hollow pipes spirally directly and enabling the hollow pipes to cling to one another fixedly, more contact areas among the hollow pipes clinging to one another are obtained, fixed connection strength can be ensured, processing and manufacturing processes are saved, the pipeline is high in ring stiffness and strength, and the problems of a common corrugated pipe are solved. The pipeline and the manufacturing method thereof are applied to the field of corrugated pipe production.
Description
Technical field
The present invention relates to bellows production field, particularly relate to a kind of polypropylene skeleton and strengthen internal-rib winding structure tube and manufacture method thereof.
Background technique
There is the outer ripple shape plastic pipe structure-wall pipe material of hollow reinforced rib, be widely used in because it has good pipeclay acting in conjunction and ring stiffness during municipal blow-off line builds.At present, the manufacture method with the outer ripple plastic winding structural wall tube of hollow reinforced rib has three kinds usually.
The first, first have the first extruder to extrude melting bar plastic sheet material, on the circular forming cylinder then making this sheet material be spirally wound on side by side regularly continuously many little roller bearings of active rotation are housed.Simultaneously, trapezoidal tubular strengthening ribs is extruded by an other extruder, with the overlapping the slot position of same spiral winding mode cross-pressure each threaded plastic sheet material neighboring edge on tube wall after water-cooled vacuum sizing, trapezoidal tubular strengthening ribs bottom surface is through suitably heating, simultaneously because plastic sheet is in semi-molten state, after the rolling of pinch roller, the bar plastic sheet material of tubular strengthening ribs and two-layer mutual overlap joint fuses together, and forms the outer ripple plastic winding structure wall pipe with hollow reinforced rib.But this technique exists following defect: (1) is wound around after cooling and shaping due to stiffening rib, determining its height can not be too large, so the tube wall moment of inertia after shaping is less; (2) the bonding very difficult control of stiffening rib and tube wall, as too low in threaded plastic sheet temperature, then bonding difference, and as temperature is too high, bar plastic sheet material then can be difficult to control shaping from forming cylinder tenesmus; (3) complete bonding after, slot is left all the time in the side of stiffening rib, causes stress to concentrate, ambient temperature alternately change time face of weld progressively can be ftractureed by slot, easily cause tube wall be separated with stiffening rib and collapse.
The second, what first extruded by the first extruder is that both sides, bottom surface are respectively with the special-shaped rectangular tube of the suitable shape fin of a mutual welding, this special-shaped rectangular tube is after vacuum cooling sizing, be spirally wound on forming cylinder, constantly extruded the melten gel of melting again by the second extruder to the fin connection part of the adjacent correspondence of the special-shaped rectangular tube of spiral winding side by side, be welded together through pinch roller rolloff.There is following shortcoming in this technique: this welding position is at the most weak part of tubing, and face of weld is little, melten gel amount is few, thus reduces tubing integral bending.
The third, first extrude by the first extruder the plastic shaped band that continuous print both sides have the tubular lobes including hollow cavity, this plastic shaped band is spirally wound on the forming cylinder of rotation continuously side by side, space is formed between two tubular lobes making adjacent plastic shaped band close to each other, in space, the plastisol of melting is clamp-oned again continuously by the second extruder, one is closely fused into through latter two tubular lobes of pinch roller rolloff, two tubular lobes weldings form the hollow reinforced rib of pipe outer wall, the fusion position, side of two tubular lobes is formed and strengthens internal-rib.There is following shortcoming in this technique: this hollow reinforced rib is all formed by plastic shaped band, and like this, the outer ripple shape plastic pipe structure-wall pipe material after shaping has very large weight, is not easy to transport.
Above-mentioned common winding bellows ubiquity needs the process being repeatedly wound around and rolling, thus increases the technological process of bellows making, makes its preparation process all comparatively complicated, too increases the fabricating cost of producing machine simultaneously.And the joint of this type of bellows sheet material tube wall is comparatively weak, its join strength has to be strengthened.
Therefore, be necessary to provide a kind of preparation process more simple and the bellows that can reach usage requirement, solve the problems referred to above.
Summary of the invention
For solving the problem, the invention provides that a kind of technique is simple and the better polypropylene skeleton of join strength strengthens internal-rib winding structure tube and manufacture method thereof.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of polypropylene skeleton strengthens internal-rib winding structure tube, comprises by the body of band spiral winding, and band is some parallel to each other and adjacent surface is close to fixing hollow tubular product, and the inwall of each hollow tubular product is concordant.
Be further used as the improvement of technical solution of the present invention, each described hollow tubular product comprises the plastic ripple tube body that is arranged on hollow tubular product inside and is wrapped in the PE clad outside described plastic ripple tube body, is close to is fixed between two adjacent hollow tubular products by the PE clad be close to each other.
Be further used as the improvement of technical solution of the present invention, band comprises the orthogonal bellows base tube of a cross section and is close to the fixing internal-rib reinforced pipe of described bellows base tube, and described internal-rib reinforced pipe is provided with the projection higher than bellows base tube thickness.
Be further used as the improvement of technical solution of the present invention, internal-rib reinforced pipe comprises the base tube attachment portion that is connected with bellows base tube and protrudes from described base tube joint and is divided into the Inner rib part that isosceles trapezoid arranges.
Be further used as the improvement of technical solution of the present invention, internal-rib reinforced pipe comprises two symmetrically arranged right-angled trapezium pipes, described in two, the long base of right-angled trapezium pipe is close to fixing, and the short base length of right-angled trapezium pipe described in two equals the thickness of bellows base tube and is close to fixing with bellows base tube both sides.
Manufacture the method that above-mentioned polypropylene skeleton strengthens internal-rib winding structure tube, comprise the following steps:
1), simultaneously parallelly bellows base tube and internal-rib reinforced pipe is extruded;
2), when described bellows base tube and internal-rib reinforced pipe are extruded, respectively along the length direction of described bellows base tube and internal-rib reinforced pipe at bellows base tube and the outer coating PE clad of internal-rib reinforced pipe;
3), by the bellows base tube be parallel to each other and internal-rib reinforced pipe be spirally wound on successively on the shaping roll shaft of rotation continuously, make the PE clad between adjacent bellows base tube and internal-rib reinforced pipe be close to pressurized, realize being fixed to one another, to form bellows;
4) outer wall, in two adjacent hollow tubular product joints applies pressure, reinforces the connection.
Be further used as the improvement of technical solution of the present invention, in step 3), the bellows base tube be parallel to each other and internal-rib reinforced pipe carry out spiral winding successively, and be close to fixing with adjacent bellows base tube or internal-rib reinforced pipe, any two adjacent described bellows base tubes are identical with the time lag that internal-rib reinforced pipe carries out being fastened.
Beneficial effect of the present invention: because this bellows is by the direct spiral winding of multiple tracks hollow tubular product, and be close to each other and fixedly form, hollow tubular product is glued with more area of contact each other, the intensity be fixedly connected with can be ensured, save processing and fabricating operation simultaneously, and there is good ring stiffness and higher-strength, solve common bellows Problems existing in the past.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is embodiment of the present invention bellows first embodiment tube wall cross-sectional view;
Fig. 2 is embodiment of the present invention bellows second embodiment tube wall cross-sectional view.
Embodiment
With reference to Fig. 1, Fig. 2, the present invention is that a kind of polypropylene skeleton strengthens internal-rib winding structure tube, comprises by the body of band spiral winding, and band is some parallel to each other and adjacent surface is close to fixing hollow tubular product, and the inwall of each hollow tubular product is concordant.
Because this bellows is by the direct spiral winding of multiple tracks hollow tubular product, and be close to each other and fixedly form, hollow tubular product is glued with more area of contact each other, the intensity be fixedly connected with can be ensured, save processing and fabricating operation simultaneously, and there is good ring stiffness and higher-strength, solve common bellows Problems existing in the past.
As the preferred embodiment of the present invention, each described hollow tubular product is comprised the plastic ripple tube body that is arranged on hollow tubular product inside and is wrapped in be close to by the PE clad 3 be close to each other between the adjacent hollow tubular product of PE clad 3, two outside described plastic ripple tube body and is fixed.
As the preferred embodiment of the present invention, band comprises the orthogonal bellows base tube of a cross section 1 and is close to the fixing internal-rib reinforced pipe 2 of described bellows base tube 1, and described internal-rib reinforced pipe is provided with the projection higher than bellows base tube 1 thickness.
As the preferred embodiment of the present invention, internal-rib reinforced pipe 2 comprises the base tube attachment portion that is connected with bellows base tube 1 and protrudes from described base tube joint and is divided into the Inner rib part that isosceles trapezoid arranges.
As the preferred embodiment of the present invention, internal-rib reinforced pipe 2 comprises two symmetrically arranged right-angled trapezium pipes, described in two, the long base of right-angled trapezium pipe is close to fixing, and the short base length of right-angled trapezium pipe described in two equals the thickness of bellows base tube 1 and is close to fixing with bellows base tube 1 both sides.
Manufacture the method that above-mentioned polypropylene skeleton strengthens internal-rib winding structure tube, comprise the following steps:
1), simultaneously parallelly bellows base tube 1 and internal-rib reinforced pipe 2 is extruded;
2), when described bellows base tube 1 and internal-rib reinforced pipe 2 are extruded, respectively along the length direction of described bellows base tube 1 and internal-rib reinforced pipe 2 at bellows base tube 1 and internal-rib reinforced pipe 2 outer coating PE clad 3;
3), the bellows base tube 1 be parallel to each other and internal-rib reinforced pipe 2 are spirally wound on successively on the shaping roll shaft rotated continuously, the PE clad 3 between adjacent bellows base tube 1 and internal-rib reinforced pipe 2 is made to be close to pressurized, realization is fixed to one another, to form bellows;
4) outer wall, in two adjacent hollow tubular product joints applies pressure, reinforces the connection.
As the preferred embodiment of the present invention, in step 3), the bellows base tube 1 be parallel to each other and internal-rib reinforced pipe 2 carry out spiral winding successively, and be close to fixing with adjacent bellows base tube 1 or internal-rib reinforced pipe 2, any two adjacent described bellows base tubes 1 are identical with the time lag that internal-rib reinforced pipe 2 carries out being fastened.
The processing speed of bellows can be improved by many hollow tubular products parallel to each other successively spiral winding, boost productivity, and the interval time be connected to each other between hollow tubular product can better be ensured, better ensure its connectivity robustness.
Said method can be equipped with by common winding structure pipe manufacturing mechanism get to know accordingly, namely shaping cover and auxiliary pressing wheel can produce, equipment investment is little, can wide popularization and application.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. polypropylene skeleton strengthens an internal-rib winding structure tube, comprises by the body of band spiral winding, it is characterized in that: described band is some parallel to each other and adjacent surface is close to fixing hollow tubular product, and the inwall of each hollow tubular product is concordant.
2. polypropylene skeleton according to claim 1 strengthens internal-rib winding structure tube, it is characterized in that: each described hollow tubular product comprises the plastic ripple tube body that is arranged on hollow tubular product inside and is wrapped in the PE clad outside described plastic ripple tube body, be close to by the PE clad be close to each other between two adjacent hollow tubular products and be fixed.
3. polypropylene skeleton according to claim 2 strengthens internal-rib winding structure tube, it is characterized in that: described band comprises the orthogonal bellows base tube of a cross section and is close to the fixing internal-rib reinforced pipe of described bellows base tube, and described internal-rib reinforced pipe is provided with the projection higher than bellows base tube thickness.
4. polypropylene skeleton according to claim 3 strengthens internal-rib winding structure tube, it is characterized in that: described internal-rib reinforced pipe comprises the base tube attachment portion that is connected with bellows base tube and protrudes from described base tube joint and be divided into the Inner rib part that isosceles trapezoid arranges.
5. polypropylene skeleton according to claim 3 strengthens internal-rib winding structure tube, it is characterized in that: described internal-rib reinforced pipe comprises two symmetrically arranged right-angled trapezium pipes, described in two, the long base of right-angled trapezium pipe is close to fixing, and the short base length of right-angled trapezium pipe described in two equals the thickness of bellows base tube and is close to fixing with bellows base tube both sides.
6. the polypropylene skeleton in claim 3 ~ 5 described in any one strengthens a manufacture method for internal-rib winding structure tube, it is characterized in that, comprises the following steps:
1), simultaneously parallelly bellows base tube and internal-rib reinforced pipe is extruded;
2), when described bellows base tube and internal-rib reinforced pipe are extruded, respectively along the length direction of described bellows base tube and internal-rib reinforced pipe at bellows base tube and the outer coating PE clad of internal-rib reinforced pipe;
3), by the bellows base tube be parallel to each other and internal-rib reinforced pipe be spirally wound on successively on the shaping roll shaft of rotation continuously, make the PE clad between adjacent bellows base tube and internal-rib reinforced pipe be close to pressurized, realize being fixed to one another, to form bellows;
4) outer wall, in two adjacent hollow tubular product joints applies pressure, reinforces the connection.
7. polypropylene skeleton according to claim 6 strengthens internal-rib winding structure tube, it is characterized in that: in described step 3), the bellows base tube be parallel to each other and internal-rib reinforced pipe carry out spiral winding successively, and be close to fixing with adjacent bellows base tube or internal-rib reinforced pipe, any two adjacent described bellows base tubes are identical with the time lag that internal-rib reinforced pipe carries out being fastened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056453.0A CN104676142B (en) | 2015-02-03 | 2015-02-03 | A kind of polypropylene backbone enhancing internal-rib winding structure tube and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510056453.0A CN104676142B (en) | 2015-02-03 | 2015-02-03 | A kind of polypropylene backbone enhancing internal-rib winding structure tube and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104676142A true CN104676142A (en) | 2015-06-03 |
| CN104676142B CN104676142B (en) | 2017-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510056453.0A Active CN104676142B (en) | 2015-02-03 | 2015-02-03 | A kind of polypropylene backbone enhancing internal-rib winding structure tube and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104676142B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898711A (en) * | 2017-02-28 | 2017-06-27 | 北京新能源汽车股份有限公司 | Battery bag lower house, battery bag and vehicle |
| CN108591632A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE multilayers enhance composite structure wall pipe |
| CN108591631A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE enhances composite structure wall pipe |
| CN108799642A (en) * | 2018-09-05 | 2018-11-13 | 贺进军 | A kind of rectangular double-walled stud winding pipe |
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-
2015
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|---|---|---|---|---|
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| CN2457423Y (en) * | 2001-02-15 | 2001-10-31 | 张永东 | Pipe wall screw winding formed plastic tube |
| KR20030091928A (en) * | 2003-11-17 | 2003-12-03 | 유옥수 | Method for quickly manufacturing synthetic resin pipe and synthetic resin pipe thereby |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898711A (en) * | 2017-02-28 | 2017-06-27 | 北京新能源汽车股份有限公司 | Battery bag lower house, battery bag and vehicle |
| CN108591632A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE multilayers enhance composite structure wall pipe |
| CN108591631A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE enhances composite structure wall pipe |
| CN108799642A (en) * | 2018-09-05 | 2018-11-13 | 贺进军 | A kind of rectangular double-walled stud winding pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104676142B (en) | 2017-10-31 |
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Effective date of registration: 20180208 Address after: 516800 Guangdong County of Longmen city in Huizhou province Yong Han Zhen Jian Tian Cun more to my mountain Patentee after: Guangdong Jiantong pipeline products Co. Ltd. Address before: 510660 Guangdong Province Nanhai District of Foshan City Industrial Zone Water South Chong Patentee before: Dai Aiqing |
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