CN101491937A - Manufacturing method of HDPE cable sheath tube of rain-wind Induced vibration - Google Patents
Manufacturing method of HDPE cable sheath tube of rain-wind Induced vibration Download PDFInfo
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- CN101491937A CN101491937A CNA2009100252389A CN200910025238A CN101491937A CN 101491937 A CN101491937 A CN 101491937A CN A2009100252389 A CNA2009100252389 A CN A2009100252389A CN 200910025238 A CN200910025238 A CN 200910025238A CN 101491937 A CN101491937 A CN 101491937A
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Abstract
The invention relates to a method for manufacturing a wind-rain vibration resistant embossing HDPE cable protecting sleeve. The method comprises: arranging a forming device on the outside of a machine head of a plastic extruder; extruding an HDPE circular pipe through 4 to 8 rollers which are evenly distributed on the forming device by circle, provided with convex nails on the outer edges and can rotate around a self axis by making use of the self residual heat of the HDPE circular pipe; making the outer surface of the HDPE circular pipe synchronously form concave pits which are arranged according to specified regulation and shape; and forming the HDPE circular pipe through cooling to obtain the wind-rain vibration resistant embossing HDPE cable protecting sleeve. The method makes full use of self heat of the HDPE circular pipe and has the advantages of energy resource conservation, convenient operation, good forming performance of the concave pits on the HDPE pipe and stable quality.
Description
(1) technical field
The present invention relates to the manufacture method of the member that a kind of cable-stayed bridge engineering uses, particularly relate to the manufacture method of the HDPE cable sheath tube of rain-wind Induced vibration that a kind of parallel steel stranded wire suspension cable uses.
(2) background technology
Suspension cable is the lifeline of cable-stayed bridge.Large span stayed-cable bridge is because the suspension cable cable body is longer, and under the synergy of wind and rain, suspension cable can produce vibration, influences Structure Safety for Bridge.Therefore, the suspension cable that large span stayed-cable bridge is used is generally all taken measures on cable body, destroys the wind and rain vibration frequency that causes inhaul cable vibration, with suppression of vibrations.Wind, rain and vibration resistance stay cable commonly used has two kinds of patterns: embossing drag-line and bifilar helix drag-line.The embossing drag-line is on the cable body surface pit of arranging according to certain rules to be set, and only is used for the parallel wire stay system at present; The bifilar helix drag-line is the bifilar helix that projection is set on the cable body surface, is applied in parallel wire stay and parallel guy of twisted steel cable system at present.Wind tunnel test and real bridge applicable cases according to anti-wind, rain and vibration parallel steel wire embossing drag-line are seen, the pit that goes out to have certain rule and shape in drag-line cable body surface pressure, can destroy the rain line on drag-line surface, destroy the vibration frequency of drag-line, thereby the wind and rain that effectively suppresses drag-line shake.At present, in parallel steel stranded wire suspension cable system, only adopt double spiral HDPE pipe to solve the problem of cable anti-wind, rain and vibration, embossing HDPE cable sheath tube is not used for the anti-wind and rain and vibration means of parallel steel stranded wire suspension cable system as yet.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of manufacture method that is used for the HDPE cable sheath tube of rain-wind Induced vibration of parallel steel stranded wire suspension cable system is provided.
The object of the present invention is achieved like this: a kind of manufacture method of HDPE cable sheath tube of rain-wind Induced vibration, it is the head outside at plastic extruder, the installation forming device, utilize the surplus temperature of HDPE pipe self, 4～8 evenly distribute by circumference on the dependence shaped device, the protruding nail of outer marginal zone, can push the HDPE pipe around the roller that self axis rotates, HDPE pipe straight ahead drives roller and rotates synchronously, make and form the pit of arranging by certain rule and shape on the HDPE pipe outer surface synchronously, and, be made into HDPE cable sheath tube of rain-wind Induced vibration by cooling and shaping.
The inventive method has the following advantages:
1, makes full use of HDPE pipe self heat, energy savings;
2, easy to operate, the pit good moldability on the HDPE pipe, steady quality.
(4) description of drawings
Fig. 1 is the process chart of HDPE cable sheath tube of rain-wind Induced vibration manufacture method of the present invention.
Among the figure: barrel 1, hopper 2, bringing-up section 3, plastic extruder 4, HDPE pipe 5, internal mold 6, shaped device 7, roller 8, bosh 9, hauling machine 10.
(5) specific embodiment
The present invention relates to the manufacture method of HDPE cable sheath tube of rain-wind Induced vibration, it is the head outside at plastic extruder, the installation forming device, utilize the surplus temperature of HDPE pipe self, rely on the shaped device 4～8 by circumference evenly distribute, the protruding nail of outer marginal zone, can be around the roller extruding HDPE pipe of self axis rotation, HDPE pipe straight ahead drives roller and rotates synchronously, make and form the pit of arranging by certain rule and shape on the HDPE pipe outer surface synchronously, and, be made into HDPE cable sheath tube of rain-wind Induced vibration by cooling and shaping.According to the diameter of HDPE pipe, regulate number of rollers and arrangement mode on the shaped device, can produce the HDPE cable sheath tube of rain-wind Induced vibration of stay-in-grade all size.Its concrete manufacture method such as Fig. 1:
1) the HDPE plastic pellet after will drying enters the extruding machine bringing-up section by the plastics extrusion machine material barrel, be heated the predetermined temperature fusion after, the cavity that forms of the interior external mold by plastic extruder continuously, extrusion molding HDPE pipe;
2) internal mold of plastic extruder stretches out head 300～500mm, and internal mold is a tubulose, is distributed with aperture on it, but blowing air.At the head outside of plastic extruder, installation forming device.This shaped device mainly by 4～8 radially straight line regulate, can form along the roller that the outer rim that himself axis rotates freely is established protruding nail.Be provided with in addition on the roller and blow air duct.
3) the HDPE round tube inner wall of extruding travels forward along the internal mold that plastic extruder protrudes, and the hot-air that feeds in the internal mold makes the inwall typing of HDPE pipe;
When 4) the HDPE pipe is pressed the certain speed straight ahead, regulate the position of the roller on the shaped device, rely on the support force of the internal mold that protrudes and the thrust of roller, utilize the surplus temperature of HDPE pipe, it is dark to make protruding nail on the roller be pressed in the HDPE pipe 2～4mm, while HDPE pipe straight ahead drive roller rotates synchronously, presses pit necessarily regular and the shape arrangement at outer surface extrusion 4～8 row of HDPE pipe.Blow air in the way roller simultaneously, make the pit cooling and shaping of extrusion;
5) utilize hauling machine, the HDPE pipe is drawn continuously enter bosh, make its cooling and shaping, be made into the HDPE cable sheath tube of rain-wind Induced vibration of certain rule of surface band and shape pit.
Claims (2)
1, a kind of manufacture method of HDPE cable sheath tube of rain-wind Induced vibration, it is characterized in that it is outside the head of plastic extruder, the installation forming device, utilize the surplus temperature of HDPE pipe self, rely on the shaped device 4～8 by circumference evenly distribute, the protruding nail of outer marginal zone, can be around the roller extruding HDPE pipe of self axis rotation, HDPE pipe straight ahead drives roller and rotates synchronously, make and form the pit of arranging by certain rule and shape on the HDPE pipe outer surface synchronously, and, be made into HDPE cable sheath tube of rain-wind Induced vibration by cooling and shaping.
2, the manufacture method of HDPE cable sheath tube of rain-wind Induced vibration according to claim 1 is characterized in that described method specifically comprises following technical process:
1) the HDPE plastic pellet after will drying enters the extruding machine bringing-up section by the plastics extrusion machine material barrel, be heated the predetermined temperature fusion after, the cavity that forms of the interior external mold by plastic extruder continuously, extrusion molding HDPE pipe;
2) internal mold of plastic extruder stretches out head 300～500mm, internal mold is a tubulose, be distributed with aperture on it, the head outside at plastic extruder, the installation forming device, this shaped device mainly by 4～8 radially straight line regulate, can form along the roller that the outer rim that himself axis rotates freely is established protruding nail, be provided with in addition on the roller and blow air duct;
3) the HDPE round tube inner wall of extruding travels forward along the internal mold that plastic extruder protrudes, and the hot-air that feeds in the internal mold makes the inwall typing of HDPE pipe;
When 4) the HDPE pipe is pressed the certain speed straight ahead, regulate the radial position of the roller on the shaped device, rely on the support force of the internal mold that protrudes and the thrust of roller, utilize the surplus temperature of HDPE pipe, it is dark to make protruding nail on the roller be pressed in the HDPE pipe 2～4mm, and the HDPE pipe directly advances and drives roller and rotate synchronously simultaneously, extrudes pit by certain rule and shape arrangement at the outer surface of HDPE pipe, blow air in the way roller simultaneously, make the pit cooling and shaping of extrusion;
5) utilize hauling machine 10, HDPE is managed continuous straight line traction enter bosh 9, make its cooling and shaping, be made into the HDPE cable sheath tube of rain-wind Induced vibration of certain rule of surface band and shape pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100252389A CN101491937A (en) | 2009-02-26 | 2009-02-26 | Manufacturing method of HDPE cable sheath tube of rain-wind Induced vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100252389A CN101491937A (en) | 2009-02-26 | 2009-02-26 | Manufacturing method of HDPE cable sheath tube of rain-wind Induced vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101491937A true CN101491937A (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100252389A Pending CN101491937A (en) | 2009-02-26 | 2009-02-26 | Manufacturing method of HDPE cable sheath tube of rain-wind Induced vibration |
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| CN (1) | CN101491937A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773985A (en) * | 2012-07-26 | 2012-11-14 | 浙江永达实业集团有限公司 | PE (poly ethylene) thin-wall tube production equipment adopting air bag method |
| CN109822853A (en) * | 2019-03-25 | 2019-05-31 | 陈宗益 | A kind of HDPE feed pipe process equipment |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
-
2009
- 2009-02-26 CN CNA2009100252389A patent/CN101491937A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773985A (en) * | 2012-07-26 | 2012-11-14 | 浙江永达实业集团有限公司 | PE (poly ethylene) thin-wall tube production equipment adopting air bag method |
| CN102773985B (en) * | 2012-07-26 | 2015-03-25 | 浙江永达实业集团有限公司 | PE (poly ethylene) thin-wall tube production equipment adopting air bag method |
| CN109822853A (en) * | 2019-03-25 | 2019-05-31 | 陈宗益 | A kind of HDPE feed pipe process equipment |
| CN114932670A (en) * | 2022-05-21 | 2022-08-23 | 临海伟星新型建材有限公司 | Preparation method of novel electrical sheath pipeline |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090729 |