CN104260248B - Hdpe double-wall corrugated pipe cooling device - Google Patents
Hdpe double-wall corrugated pipe cooling device Download PDFInfo
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- CN104260248B CN104260248B CN201410444021.2A CN201410444021A CN104260248B CN 104260248 B CN104260248 B CN 104260248B CN 201410444021 A CN201410444021 A CN 201410444021A CN 104260248 B CN104260248 B CN 104260248B
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- wall corrugated
- corrugated pipe
- water jacket
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Abstract
The invention discloses a kind of HDPE double-wall corrugated pipe cooling device, comprise outer sleeve body (1) and vacuum water jacket (2), at the outer surface of described vacuum water jacket (2), helical groove is set vertically, suction hole (21) is provided with at the bottom land of described helical groove, described vacuum water jacket (2) is provided with one section of water chamber (22), water inlet (223) is provided with in the lower end of described water chamber (22), upper end is provided with delivery port (224), this water chamber (22) is provided with several fixtures (221), fixture described in several (221) is all equipped with a thermal insulation board (222).The present invention is provided with water chamber, helical groove and thermal insulation board on vacuum water cover, formed technical process is improved, can under the effect of all even abundant cooling, can make the outward appearance of the double-wall corrugated inside pipe wall of HDPE and mechanical performance more stable, with can enhance productivity, cost-saving, applied widely.
Description
Technical field
The present invention relates to the processing of HDPE double-wall corrugated pipe, particularly HDPE double-wall corrugated pipe cooling device.
Background technology
HDPE is high density polyethylene (HDPE), there is good waterproof, the performances such as anti-electric and shock resistance, the HDPE double-wall corrugated pipe produced by it has lightweight, high pressure resistant, good toughness, construction is fast, the features such as the life-span is long, in process of production, when prior art is to HDPE double-wall corrugated pipe cooling and shaping, the water-cooled mode of usual employing, because specific heat of water is larger, when HDPE double-wall corrugated pipe begins to cool down, the temperature difference is larger, along with cooling continue carry out, the temperature difference of cooling water and HDPE double-wall corrugated pipe reduces, this makes HDPE double-wall corrugated pipe cooling and shaping even not, outward appearance and mechanical performance are stable not, especially card interface position, spillage of material is larger, product quality is not high.
Summary of the invention
The technical problem to be solved in the present invention there is provided a kind of cooling device that can reduce HDPE double-wall corrugated pipe inner wall roughness.
Technical scheme of the present invention is as follows:
HDPE double-wall corrugated pipe cooling device, comprise outer sleeve body and vacuum water jacket, described vacuum water is enclosed within the inside of outer sleeve body, the center line of this vacuum water jacket and outer sleeve body point-blank, at the outer surface of described vacuum water jacket, helical groove is set vertically, several suction holes are provided with at the bottom land of described helical groove, one section of water chamber is also provided with in charging aperture one end of described vacuum water jacket, water inlet is provided with in the lower end of described water chamber, upper end is provided with delivery port, this water chamber towards discharge end also level be provided with several fixtures, this fixture is hollow structure, described water chamber is all connected through with several fixtures, fixture described in several is all equipped with a thermal insulation board near one end of charging aperture.
Adopt above technology, be provided with helical groove at the outer surface of vacuum water jacket, increase the exterior surface area of vacuum water jacket, also increase the film-cooled heat of HDPE double-wall corrugated pipe simultaneously, make the cooling of HDPE double-wall corrugated pipe evenly, also even by force intensity, quality is more stable, one section of water chamber is also provided with in charging aperture one end of vacuum water jacket, can be first pre-cooled at this water chamber of process after utilizing the cooling water of circulation that HDPE double-wall corrugated pipe mold can be made shaping, avoid temperature difference when cooling too large on the one hand, the contraction affecting material is uneven, cause surface quality poor, affect mechanical performance, cool time can be shortened on the other hand, enhance productivity, due to thermodynamic principles, the upper end of water chamber sets out the mouth of a river, be convenient to discharge the cooling water having absorbed heat, be convenient to the constant temperature that the long period in the process of water circulation keeps water chamber, more stable to the pre-cooled effect of HDPE double-wall corrugated pipe, being connected through fixture with water chamber not only can utilize cooling water to continue to cool to HDPE double-wall corrugated pipe, the effect of supplemental support can also be played to HDPE double-wall corrugated pipe, guarantee the cooling of HDPE double-wall corrugated pipe evenly, also thermal insulation board is arranged with near one end of charging aperture at fixture, cooling water temperature can be avoided to raise after, heat is arrived by fixture outer surface radiation delivery, ensures have enough chilling temperatures to be shaped at lasting cooling stage.
In order to not strengthen the deflection of the double-wall corrugated inside pipe wall of HDPE, simultaneously can play certain rotation guide effect, can cooling be made while rotation evenly, as preferably, the groove width of described helical groove is 5mm, and groove depth is 1mm.
In order to can uniform decrease in temperature when pre-cooled, as preferably, the length of described water chamber be 40mm, and described water chamber is socketed in vacuum water and puts, and the diameter of this water chamber is consistent with the diameter of vacuum water jacket.
Can absorb a large amount of heat in order to satisfied, keep the technological effect continuing cooling in vacuum water jacket simultaneously, as preferably, described thermal insulation board is the square square structure of 10cm, and its thickness is 3 ~ 5mm.
In order to enhance productivity, reduce the loss of deformation of products amount and rim charge, as preferably, the length of described vacuum water jacket is 1.2m.
Present invention also offers a kind of cooling means of HDPE double-wall corrugated pipe cooling device, comprise following cooling step:
After step one, HDPE double-wall corrugated pipe mold are shaping, the described water chamber place through charging aperture place is pre-cooled, and coolant water temperature is 20 ~ 30 DEG C, and hydraulic pressure is 0.3 ~ 0.5Mpa;
Step 2, thermal insulation board carry out thermal resistance to the surface temperature of correspondence position fixture;
Step 3, helical groove bottom land suction hole absorption refrigeration, absorption air pressure is 0.02 ~ 0.06Mpa;
Step 4, vacuum water jacket continues cooling and shaping until discharging.
What traditional handicraft directly entered after HDPE double-wall corrugated pipe mold is shaping that vacuum water cover carries out continuing cools again, there is no pre-cooled process, even not to the surface cool of HDPE double-wall corrugated pipe, surface quality is stable not, simultaneously, in the process of feeding, vacuum water jacket outer surface is that face contacts with the double-wall corrugated inside pipe wall of HDPE, and frictional force variation with temperature also can make roughness and the mechanical performance instability of the inner wall surface of HDPE double-wall corrugated pipe; The present invention is provided with water chamber, helical groove and thermal insulation board on vacuum water cover, formed technical process is improved, can under the effect of all even abundant cooling, can make the outward appearance of the double-wall corrugated inside pipe wall of HDPE and mechanical performance more stable, can enhance productivity, cost-saving, applied widely.
In order to the exterior surface of the inwall and vacuum water jacket that make HDPE double-wall corrugated pipe is steady, as preferably, feeding speed is 40 ~ 45m/h.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present invention includes outer sleeve body 1 and vacuum water jacket 2, described vacuum water jacket 2 is in the inside of outer sleeve body 1, the center line of this vacuum water jacket 2 and outer sleeve body 1 point-blank, the length of described vacuum water jacket 2 is 1.2m, at the outer surface of described vacuum water jacket 2, helical groove is set vertically, the groove width of described helical groove is 5mm, groove depth is 1mm, several suction holes 21 are provided with at the bottom land of described helical groove, one section of water chamber 22 is also socketed with in charging aperture one end of described vacuum water jacket 2, the length of described water chamber 22 is 40mm, the diameter of this water chamber 22 is consistent with the diameter of vacuum water jacket 2, water inlet 223 is provided with in the lower end of described water chamber 22, upper end is provided with delivery port 224, described water chamber 22 towards discharge end also level be provided with several fixtures 221, this fixture 221 is hollow structures, described water chamber 22 is all connected through with several fixtures 221, fixture 221 described in several is all equipped with a thermal insulation board 222 near one end of charging aperture, described thermal insulation board 222 is the square square structure of 10cm, its thickness is 3 ~ 5mm.
The present invention includes following cooling step:
After step one, HDPE double-wall corrugated pipe mold are shaping, described water chamber 22 place through charging aperture place is pre-cooled, coolant water temperature is 20 ~ 30 DEG C, hydraulic pressure is 0.3 ~ 0.5Mpa, cooling water circulates under pressure and enters water chamber 22, because specific heat of water is comparatively large, can take away amount of heat, simultaneously under the prerequisite meeting technique, the temperature of HDPE double-wall corrugated pipe is made to be cooled to 180 DEG C;
The surface temperature of step 2, thermal insulation board 222 pairs of correspondence position fixtures 221 carries out thermal resistance, because the shaping later temperature of HDPE double-wall corrugated pipe mold is higher, general at about 240 DEG C, fixture 221 surface easily transferring heat, in order to prevent the lasting cooling effect affected in vacuum water jacket, the heat on fixture 221 must be blocked;
Step 3, helical groove bottom land suction hole 21 absorption refrigeration, absorption air pressure is 0.02 ~ 0.06Mpa, in order to make the inwall of HDPE double-wall corrugated pipe Homogeneous cooling under the promotion of feeding speed, increase cooling contact area simultaneously, in the process of absorption, the inwall of HDPE double-wall corrugated pipe can form the helical raised matched with helical groove, helical groove guiding guide under, HDPE double-wall corrugated pipe rotate advance, cooling evenly;
Step 4, vacuum water jacket 2 continues cooling and shaping until discharging, feeding speed is 40 ~ 45m/h, this feeding speed is at pre-cooled and lasting cooling stage, make the exterior surface of the inwall of HDPE double-wall corrugated pipe and vacuum water jacket 2 steady, can not scratch be produced because of the face contact in two faces or pile up distortion, the presentation quality of the double-wall corrugated inside pipe wall of HDPE can be ensured.
It is consistent with prior art that the present invention does not describe part, and therefore not to repeat here.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, all in like manner within scope of patent protection of the present invention.
Claims (7)
1.HDPE double-wall corrugated pipe cooling device, comprise outer sleeve body (1) and vacuum water jacket (2), described vacuum water jacket (2) is in the inside of outer sleeve body (1), the center line of this vacuum water jacket (2) and outer sleeve body (1) point-blank, it is characterized in that: at the outer surface of described vacuum water jacket (2), helical groove is set vertically, several suction holes (21) are provided with at the bottom land of described helical groove, one section of water chamber (22) is also provided with in charging aperture one end of described vacuum water jacket, water inlet (223) is provided with in the lower end of described water chamber (22), upper end is provided with delivery port (224), this water chamber (22) towards discharge end also level be provided with several fixtures (221), this fixture (221) is hollow structure, described water chamber (22) is all connected through with several fixtures (221), fixture described in several (221) is all equipped with a thermal insulation board (222) near one end of charging aperture.
2. HDPE double-wall corrugated pipe cooling device according to claim 1, is characterized in that: the groove width of described helical groove is 5mm, and groove depth is 1mm.
3. HDPE double-wall corrugated pipe cooling device according to claim 1, it is characterized in that: the length of described water chamber (22) is 40mm, described water chamber (22) is socketed on vacuum water jacket (2), and the diameter of this water chamber (22) is consistent with the diameter of vacuum water jacket (2).
4. HDPE double-wall corrugated pipe cooling device according to claim 1, is characterized in that: described thermal insulation board (222) is the square square structure of 10cm, and its thickness is 3 ~ 5mm.
5. HDPE double-wall corrugated pipe cooling device according to claim 1, is characterized in that: the length of described vacuum water jacket (2) is 1.2m.
6., according to the cooling means of the arbitrary described HDPE double-wall corrugated pipe cooling device of claim 1 to 5, comprise following cooling step:
After step one, HDPE double-wall corrugated pipe mold are shaping, described water chamber (22) place through charging aperture place is pre-cooled, and coolant water temperature is 20 ~ 30 DEG C, and hydraulic pressure is 0.3 ~ 0.5MPa;
Step 2, the surface temperature of thermal insulation board (222) to correspondence position fixture (221) carry out thermal resistance;
Step 3, helical groove bottom land suction hole (21) absorption refrigeration, absorption air pressure is 0.02 ~ 0.06MPa;
Step 4, vacuum water jacket (2) continue cooling and shaping until discharging.
7. the cooling means of HDPE double-wall corrugated pipe cooling device according to claim 6, is characterized in that: in described step 4, feeding speed is 40 ~ 45m/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410444021.2A CN104260248B (en) | 2014-09-02 | 2014-09-02 | Hdpe double-wall corrugated pipe cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410444021.2A CN104260248B (en) | 2014-09-02 | 2014-09-02 | Hdpe double-wall corrugated pipe cooling device |
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| Publication Number | Publication Date |
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| CN104260248A CN104260248A (en) | 2015-01-07 |
| CN104260248B true CN104260248B (en) | 2016-04-06 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111873388B (en) * | 2020-06-24 | 2022-03-01 | 安徽塑茂管道科技有限公司 | Inner and outer ring cooling equipment for Krah pipe production and operation method thereof |
| CN113733413A (en) * | 2021-08-10 | 2021-12-03 | 安徽上洋管业科技有限公司 | Forming die for HDPE double-wall corrugated pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264202A (en) * | 2001-03-13 | 2002-09-18 | Sekisui Chem Co Ltd | Method for manufacturing thermoplastic resin tube |
| CN1820930A (en) * | 2006-03-13 | 2006-08-23 | 汕头市明佳热收缩膜有限公司 | Circulation water cooling device in pipe film blank of plastic extruder mould head |
| CN202357431U (en) * | 2011-10-28 | 2012-08-01 | 四川华西德顿塑料管道有限公司 | Cooling water ring for plastic pipes |
| CN203357757U (en) * | 2013-07-22 | 2013-12-25 | 邓权塑业科技（湖南）有限公司 | Rapid pipe cooling and shaping device |
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2014
- 2014-09-02 CN CN201410444021.2A patent/CN104260248B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002264202A (en) * | 2001-03-13 | 2002-09-18 | Sekisui Chem Co Ltd | Method for manufacturing thermoplastic resin tube |
| CN1820930A (en) * | 2006-03-13 | 2006-08-23 | 汕头市明佳热收缩膜有限公司 | Circulation water cooling device in pipe film blank of plastic extruder mould head |
| CN202357431U (en) * | 2011-10-28 | 2012-08-01 | 四川华西德顿塑料管道有限公司 | Cooling water ring for plastic pipes |
| CN203357757U (en) * | 2013-07-22 | 2013-12-25 | 邓权塑业科技（湖南）有限公司 | Rapid pipe cooling and shaping device |
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| CN104260248A (en) | 2015-01-07 |
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