CN101480849B - Method for producing anti-wind, rain and vibration double-helix HDPE cable sheath tube - Google Patents
Method for producing anti-wind, rain and vibration double-helix HDPE cable sheath tube Download PDFInfo
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- CN101480849B CN101480849B CN2009100252410A CN200910025241A CN101480849B CN 101480849 B CN101480849 B CN 101480849B CN 2009100252410 A CN2009100252410 A CN 2009100252410A CN 200910025241 A CN200910025241 A CN 200910025241A CN 101480849 B CN101480849 B CN 101480849B
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Abstract
The invention relates to a manufacture method for a double-spiral line HDPE pipe, which is characterized in that by utilizing self the residual heat of an HDPE round pipe, and by making use of two extruding rollers which are provided with grooves, are symmetrically arranged on a double-spiral line extruding and setting device installed outside the head of a plastic extruder and can rotate along the HDPE pipe axis, the invention synchronously extrudes the HDPE round pipe to cause two spiral lines to be synchronously formed on the outer surface of the HDPE round pipe, and the HDPE round pipe is manufactured into a double spiral line HDPE pipe through vacuum cooling setting. The invention fully utilizes the self heat of the HDPE round pipe, and saves the energy; double spiral lines on the HDPE round pipe are synchronously formed with a pipe body basically, are not easy to fall off, and have 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 anti-wind, rain and vibration double-helix HDPE cable sheath tube that a kind of steel strand stay cable uses.
(2) background technology
Steel strand stay 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 vibration frequency that causes inhaul cable vibration, with suppression of vibrations.Wind, rain and vibration resistance stay cable commonly used at present has two kinds of structural shapes: 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.The bifilar helix drag-line is the bifilar helix that projection is set on the cable body surface.Steel strand stay cable cable body anti-wind, rain and vibration mode is on the HDPE outer tube bifilar helix to be set.At present the manufacture method of double spiral HDPE pipe commonly used is: make the plastic extrusion die of band spiral type groove, be installed in mould on the extruding machine and mould can be rotated, directly make and be with protruding double spiral HDPE pipe.The shortcoming of this method is: plastic extrusion die length is long, and processed complex, cost are very high.Simultaneously, tubulation production line complex structure, the helix of projection is yielding.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, the manufacture method of the anti-wind, rain and vibration double-helix HDPE cable sheath tube of a kind of good product performance, low cost of manufacture is provided.
The object of the present invention is achieved like this: a kind of manufacture method of anti-wind, rain and vibration double-helix HDPE cable sheath tube, it is the head outside at plastic extruder, the one bifilar helix device that is extruded to shape is installed, utilize the surplus temperature of HDPE pipe self, rely on bifilar helix to be extruded to shape on the device and can push the HDPE pipe synchronously around the rotation of HDPE tubular axis line and the band groove that can rotate freely along self axis and two squeezing rollers of symmetric arrangement, make and form two spiral curves on the HDPE pipe outer surface synchronously, be provided with vacuum pipe on the described squeezing roller in addition, by in squeezing roller, vacuumizing, make described spiral curve cooling and shaping, be made into double spiral HDPE pipe.
The manufacture method of anti-wind, rain and vibration double-helix HDPE cable sheath tube of the present invention, the described bifilar helix device that is extruded to shape comprises stay pipe, toothed disc and positioning supporting frame, stay pipe is placed in outside the HDPE pipe, the stay pipe outer rim is provided with flange, toothed disc is arranged at outside the stay pipe, described positioning supporting frame has two, each one of front and back, be installed in the both sides, front and back of toothed disc respectively, each evenly installs three support wheels on every positioning supporting frame, be provided with groove in described support wheel outer rim, this groove matches with the flange of stay pipe outer rim setting, is used to support whole stay pipe.Toothed disc upper edge diametric(al) is symmetrically installed with the squeezing roller and the roller radiai adjustment device of two outer marginal zone grooves, described squeezing roller is installed on an end at the close HDPE pipe center of roller radiai adjustment device, and described toothed disc is by the pinion drive on belt and the reductor.
The specific embodiment of the method for the invention is:
1) bringing-up section that enters the plastics extruding machine by the plastics extrusion machine material barrel of the HDPE plastic pellet after will drying, after being heated the predetermined temperature fusion, pass through the cavity of the interior external mold formation of plastic extruder continuously, extrusion molding HDPE pipe, the internal mold of described plastic extruder stretches out head 300～500mm, internal mold is a tubulose, is distributed with aperture on its tube wall, but blowing air;
2) the HDPE pipe of extrusion molding is drawn by hauling machine, and the internal mold straight line that stretches out head along plastic extruder moves ahead, and feeds hot-air in the internal mold, makes the inwall typing of HDPE pipe;
3) the straight-line forward while of HDPE pipe, regulate roller radiai adjustment device, two squeezing rollers that bifilar helix is extruded to shape on the device compress HDPE pipe outer rim, start reductor, pinion driven gear dish rotates, squeezing roller rotates along the circumferencial direction of HDPE pipe, be rotated simultaneously along himself axis, at this moment, in the process that HDPE pipe straight line moves ahead, rely on the be extruded to shape thrust of device squeezing roller of the support force of plastic extruder internal mold and bifilar helix, utilize the surplus temperature of HDPE pipe, outer surface at the HDPE pipe squeezes out two helixes synchronously, and two squeezing rollers are vacuumized, and makes the helix cooling and shaping that squeezes out;
4) utilize hauling machine, the HDPE pipe is drawn continuously enter bosh, make HDPE pipe cooling and shaping, be made into double spiral HDPE pipe.
The present invention utilizes the heat that himself carries after the HDPE pipe is extruded, be made into double spiral HDPE pipe by fashion of extrusion.According to the hauling speed of HDPE pipe, the adjusted in concert squeezing roller can be produced stay-in-grade double-helix HDPE cable sheath tube along the axial rotary speed of HDPE pipe.
The manufacture method of anti-wind, rain and vibration double-helix HDPE cable sheath tube of the present invention has the following advantages:
1, make full use of HDPE pipe self heat, energy savings, production cost is low.
2, bifilar helix on the HDPE pipe and the moulding of body basic synchronization, difficult drop-off, steady quality.
(4) description of drawings
Fig. 1 is the technological process of production figure of the inventive method.
Fig. 2 is the bifilar helix of the present invention apparatus structure schematic diagram that is extruded to shape.
Fig. 3 is that the A of Fig. 2 is to view.
Among the figure: barrel 1, hopper 2, bringing-up section 3, plastic extruder 4, HDPE pipe 5, internal mold 6, toothed disc 7, roller radiai adjustment device 8, squeezing roller 9, positioning supporting frame 10, support wheel 11, stay pipe 12, belt 13, pinion 14, hauling machine 16, groove 11.1, flange 12.1.
(5) specific embodiment
The manufacture method of anti-wind, rain and vibration double-helix HDPE cable sheath tube of the present invention, it is the head outside at plastic extruder, the one bifilar helix device that is extruded to shape is installed, utilize the surplus temperature of HDPE pipe self, rely on described bifilar helix to be extruded to shape on the device and can push the HDPE pipe synchronously around the rotation of HDPE tubular axis line and the band groove that can rotate freely along self axis and two squeezing rollers of symmetric arrangement, make and form two spiral curves on the HDPE pipe outer surface synchronously, be provided with vacuum pipe on the described squeezing roller in addition, by in squeezing roller, vacuumizing, make described spiral curve cooling and shaping, be made into double spiral HDPE pipe.
Referring to Fig. 2～3, the described bifilar helix device that is extruded to shape comprises stay pipe 12, toothed disc 7 and positioning supporting frame 10, described stay pipe 12 is placed in outside the HDPE pipe 5, stay pipe 12 outer rims are provided with flange 12.1, toothed disc 7 is arranged at outside the stay pipe 12, described positioning supporting frame 10 has two, each one of front and back, be installed in the both sides, front and back of toothed disc 7 respectively, each evenly installs three support wheels 11 on every positioning supporting frame 10, support wheel 11 outer rims are provided with groove 11.1, and this groove 11.1 matches with the flange 12.1 of stay pipe 12 outer rim settings, is used to support whole stay pipe 12.Toothed disc 7 upper edge diametric(al)s are symmetrically installed with the squeezing roller 9 and the roller radiai adjustment device 8 of two outer marginal zone grooves, described squeezing roller 9 is installed on an end at close HDPE pipe 5 centers of roller radiai adjustment device 8, and toothed disc 7 is by pinion 14 transmissions on belt 13 and the reductor.
Referring to Fig. 1, the specific embodiment of described method is:
1) bringing-up section 3 that enters the plastics extruding machine by plastics extrusion machine material barrel 1 through hopper 2 of the HDPE plastic pellet after will drying, after being heated the predetermined temperature fusion, pass through the cavity of the interior external mold formation of plastic extruder 4 continuously, extrusion molding HDPE pipe 5, the internal mold of described plastic extruder stretches out head 300～500mm, internal mold is a tubulose, is distributed with aperture on its tube wall, but blowing air.
2) the HDPE pipe 5 of extrusion molding is by hauling machine 16 tractions, and internal mold 6 straight lines that stretch out head along plastic extruder move ahead, and feeds hot-air in the internal mold, makes the inwall typing of HDPE pipe.
3) the straight-line forward while of HDPE pipe, regulate roller radiai adjustment device 8, two squeezing rollers that bifilar helix is extruded to shape on the device compress HDPE pipe outer rim, start reductor, pinion 14 driven gear dishes 7 rotate, squeezing roller 9 rotates along the circumferencial direction of HDPE pipe 5, is rotated along himself axis simultaneously.At this moment, the process that moves ahead at HDPE pipe straight line relies on the be extruded to shape thrust of device squeezing roller of the support force of plastic extruder internal mold and bifilar helix, utilizes the surplus temperature of HDPE pipe, squeezes out two helixes synchronously at the outer surface of HDPE pipe; And two squeezing rollers are vacuumized, make the helix cooling and shaping that squeezes out.
4) utilize hauling machine, the HDPE pipe is drawn continuously enter bosh 15, make HDPE pipe cooling and shaping, be made into double spiral HDPE pipe.
Claims (3)
1. the manufacture method of an anti-wind, rain and vibration double-helix HDPE cable sheath tube, it is characterized in that described method is the head outside at plastic extruder, the one bifilar helix device that is extruded to shape is installed, utilize the surplus temperature of HDPE pipe self, rely on bifilar helix to be extruded to shape on the device and can push the HDPE pipe synchronously around the rotation of HDPE tubular axis line and the band groove that can rotate freely along self axis and two squeezing rollers of symmetric arrangement, make and form two spiral curves on the HDPE pipe outer surface synchronously, be provided with vacuum pipe on the described squeezing roller in addition, by in squeezing roller, vacuumizing, make described spiral curve cooling and shaping, be made into double spiral HDPE pipe.
2. the manufacture method of a kind of anti-wind, rain and vibration double-helix HDPE cable sheath tube according to claim 1, it is characterized in that the described bifilar helix device that is extruded to shape comprises stay pipe (12), toothed disc (7) and positioning supporting frame (10), stay pipe (12) is placed in outside the HDPE pipe (5), stay pipe (12) outer rim is provided with flange (12.1), toothed disc (7) is arranged at outside the stay pipe (12), described positioning supporting frame (10) has two, each one of front and back, be installed in the both sides, front and back of toothed disc (7) respectively, every positioning supporting frame (10) is gone up each three support wheels (11) evenly is installed, be provided with groove (11.1) in described support wheel (11) outer rim, this groove (11.1) matches with the flange (12.1) that stay pipe (12) outer rim is provided with, toothed disc (7) upper edge diametric(al) is symmetrically installed with the squeezing roller (9) and the roller radiai adjustment device (8) of two outer marginal zone grooves, described squeezing roller (9) is installed on an end at close HDPE pipe (5) center of roller radiai adjustment device (8), and described toothed disc (7) is by pinion (14) transmission on belt (13) and the reductor.
3. the manufacture method of a kind of anti-wind, rain and vibration double-helix HDPE cable sheath tube according to claim 2 is characterized in that the specific embodiment of described method is:
1) bringing-up section that enters plastic extruder by the plastic extruder barrel of the HDPE plastic pellet after will drying, after being heated the predetermined temperature fusion, pass through the cavity of the interior external mold formation of plastic extruder continuously, extrusion molding HDPE pipe, the internal mold of described plastic extruder stretches out head 300～500mm, internal mold is a tubulose, is distributed with aperture on its tube wall
2) the HDPE pipe of extrusion molding is drawn by hauling machine, and the internal mold straight line that stretches out head along plastic extruder moves ahead, and feeds hot-air in the internal mold, makes the inwall typing of HDPE pipe;
3) the straight-line forward while of HDPE pipe, regulate roller radiai adjustment device, two squeezing rollers that bifilar helix is extruded to shape on the device compress HDPE pipe outer rim, start reductor, pinion driven gear dish rotates, squeezing roller rotates along the circumferencial direction of HDPE pipe, be rotated simultaneously along himself axis, at this moment, in the process that HDPE pipe straight line moves ahead, rely on the be extruded to shape thrust of device squeezing roller of the support force of plastic extruder internal mold and bifilar helix, utilize the surplus temperature of HDPE pipe, outer surface at the HDPE pipe squeezes out two helixes synchronously, and two squeezing rollers are vacuumized, and makes the helix cooling and shaping that squeezes out;
4) utilize hauling machine, the HDPE pipe is drawn continuously enter bosh, make HDPE pipe cooling and shaping, be made into double spiral HDPE pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100252410A CN101480849B (en) | 2009-02-26 | 2009-02-26 | Method for producing anti-wind, rain and vibration double-helix HDPE cable sheath tube |
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| CN2009100252410A CN101480849B (en) | 2009-02-26 | 2009-02-26 | Method for producing anti-wind, rain and vibration double-helix HDPE cable sheath tube |
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| CN101480849A CN101480849A (en) | 2009-07-15 |
| CN101480849B true CN101480849B (en) | 2010-10-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954733A (en) * | 2010-06-04 | 2011-01-26 | 张家港市贝尔机械有限公司 | Device for molding plastic pipe by rolling |
| CN108419716B (en) * | 2018-03-08 | 2020-08-11 | 重庆市南川区千里花养蜂专业合作社 | Device for manufacturing bee hive |
| CN109306657A (en) * | 2018-11-05 | 2019-02-05 | 中国石油天然气集团公司 | A kind of pipeline suspension crossing wind resistance system |
| CN110080107B (en) * | 2019-05-05 | 2024-03-12 | 江苏法尔胜缆索有限公司 | Anti-drop device of stay cable shock absorber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302723A (en) * | 2000-01-06 | 2001-07-11 | 张梅云 | Apparatus for forming tubulature-type pipeline |
| US7124978B2 (en) * | 2002-06-28 | 2006-10-24 | Contitech Luftfedersysteme Gmbh | Spiraling device |
| CN1944036A (en) * | 2006-10-27 | 2007-04-11 | 江阴法尔胜住电新材料有限公司 | Method for producing double spiral HDPE pipe |
-
2009
- 2009-02-26 CN CN2009100252410A patent/CN101480849B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302723A (en) * | 2000-01-06 | 2001-07-11 | 张梅云 | Apparatus for forming tubulature-type pipeline |
| US7124978B2 (en) * | 2002-06-28 | 2006-10-24 | Contitech Luftfedersysteme Gmbh | Spiraling device |
| CN1944036A (en) * | 2006-10-27 | 2007-04-11 | 江阴法尔胜住电新材料有限公司 | Method for producing double spiral HDPE pipe |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-286056A 1999.10.19 |
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