CN108790107A - A kind of heavy caliber PE pipes cooling and shaping device and method - Google Patents
A kind of heavy caliber PE pipes cooling and shaping device and method Download PDFInfo
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- CN108790107A CN108790107A CN201810895465.6A CN201810895465A CN108790107A CN 108790107 A CN108790107 A CN 108790107A CN 201810895465 A CN201810895465 A CN 201810895465A CN 108790107 A CN108790107 A CN 108790107A
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- high pressure
- hot
- core model
- flexible metallic
- air
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
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- Moulds For Moulding Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to PE pipe production technical fields,More particularly to a kind of heavy caliber PE pipes cooling and shaping device and method,Including die body temperature regulating device,High pressure cold wind conveying device,Hot wind pumpback device,The die body temperature regulating device is mounted on core model,The core model includes direct tube section and conical section,The direct tube section center is equipped with axially extending bore,The die body temperature regulating device is mounted on the inner wall of the core model direct tube section,The high pressure cold wind conveying device includes a plurality of high pressure flexible metallic conduit,Described high pressure flexible metallic conduit one end is connected with high pressure air-cooler air outlet,The other end is pierced by through the axially extending bore into vacuum shaping box,The hot wind pumpback device includes a plurality of hot exhausting metal hose,Described hot exhausting metal hose one end is connected with high negative pressure extractor fan suction opening,The other end enters the axially extending bore,Invention cooling efficiency is high,Tube wall is avoided wall unevenness occur simultaneously even,Cavity,It collapses.
Description
Technical field
The present invention relates to PE pipe production technical fields, and in particular to a kind of heavy caliber PE pipes cooling and shaping device and method.
Background technology
As country continues to increase infrastructure investment, the construction of feedwater piping is also constantly accelerated, the kind of tubing
It enriches constantly with specification, yield is continuously increased.In recent years, polyethylene pipe PE pipes are quickly grown in China, due to its excellent property
Can, occupation rate of market starts to lead over other plastic water pipe materials.PE pipes are with service life length, good corrosion resistance, construction
Conveniently, the advantages that excellent flexible, good resistance scratch ability.In addition its excellent cost performance, thus make it from various defeated
Show one's talent in water pipe material, the development of a few years time is very rapid, and application is very extensive.
During producing PE pipes, PE pipes need to carry out fast cooling sizing to tubing after being molded extrusion molding, with
Pipe deformations are avoided, shape is influenced and generates quality problems, generally determined using vacuum in existing polyethylene (PE) pipe production technology
Molding box carries out shaping cooling with water to polyethylene (PE) pipe.It proposes to use thermal conductivity oil as cooling medium in the science and technology report of part, but
Not yet realize industrial applications.In addition during producing major diameter polyethylene (PE) pipe, traditional water cooling cannot achieve soon
Quickly cooling but and sizing.Because the tube wall of major diameter polyethylene (PE) pipe is very thick, the cooling device in existing apparatus can only be by surface
It is cooling, inside occur tube wall under the action of molten heavy wall unevenness is even, empty, the problem of collapsing.If using low temperature water cooling
But the increase for the input and energy consumption that can not only make process units of shaping, is quickly cooled down increase tube wall stress in actual use, generates
Lateral slight crack, makes decrease in yield.
Invention content
In view of the above problems, being cooled down jointly using air-cooled and water cooling the object of the present invention is to provide a kind of, to heavy caliber PE
Pipe is cooled down, and cooling efficiency is improved, and avoiding tube wall from occurring, wall unevenness is even, empty, phenomena such as collapsing.
The purpose of the present invention is realized by the following technical solution：A kind of heavy caliber PE pipes cooling and shaping device, including mould
Body temperature regulating device, high pressure cold wind conveying device, hot wind pumpback device.
The die body temperature regulating device is mounted on core model, and the core model includes direct tube section and conical section, the taper section
In in cross-head body, the direct tube section center is equipped with axially extending bore, and it is straight that the die body temperature regulating device is mounted on the core model
On the inner wall of cylinder section.
The high pressure cold wind conveying device includes a plurality of high pressure flexible metallic conduit, the cross-head body and core model conical section
On corresponding position be circumferentially evenly equipped with multiple the first trepannings held the high pressure flexible metallic conduit and passed through, the high pressure flexible metallic conduit
One end is connected with the high pressure air-cooler air outlet outside the handpiece body, and the other end of the high pressure flexible metallic conduit is certainly
First trepanning enters in the axially extending bore of the core model direct tube section, and is pierced by vacuum shaping box through the axially extending bore
In, the high pressure flexible metallic conduit air outlet is circumferentially evenly distributed with along PE inside pipe walls and air-out direction is perpendicular to PE inside pipe walls.
The hot wind pumpback device includes a plurality of hot exhausting metal hose, on the cross-head body and core model conical section
Corresponding position further include circumferentially uniformly distributed multiple the second trepannings held the hot exhausting metal hose and passed through, the core model axis
Into through-hole equipped with hot exhausting metal hose holder, described hot exhausting metal hose one end and mounted on the cross-head body
External high negative pressure extractor fan suction opening is connected, and the other end enters the axial direction of the core model direct tube section from the second trepanning
Through-hole is simultaneously mounted on the hot exhausting metal hose holder.
Further, the die body temperature regulating device includes mica heating plate, the electric heating installed on the inner wall of core model direct tube section
Even and outside PLC controls, the mica heating plate inner wall install heat-resisting material, ensure not taking away die body temperature when hot wind pumpback
Degree.
Further, the high negative pressure extractor fan is high negative pressure vortex pump or high negative pressure exhaust fan.
Further, the high pressure cold wind conveying device includes 4 high pressure flexible metallic conduits.
Further, installation and adjustment valve on the high pressure flexible metallic conduit controls gas flow.
Further, the axially extending bore outlet end of the core model direct tube section is equipped with hot air draft pipe, and the high pressure cold wind is defeated
Send a plurality of high pressure flexible metallic conduit of device is circumferential to be uniformly mounted on hot air draft pipe, multiple high pressure flexible metallic conduits
Air-out direction does not stay dead angle perpendicular to the inner wall of PE pipes, ensures that tube wall thickness is controllably shunk.
Further, the hot exhausting metal hose is 8.
Further, the hot exhausting metal hose holder is partition board, and multiple permission institutes are circumferentially uniformly provided on the partition board
State hot exhausting metal hose and high pressure flexible metallic conduit by hole.
Further, the hot-blast outlet of the high negative pressure extractor fan is connected with raw material preheating device.
It is a kind of that heavy caliber PE pipe cooling and shaping methods are carried out using above-mentioned apparatus, include the following steps：
Step 1 starts high pressure air-cooler, and cold wind is blown out from high pressure air-cooler, and PE inside pipe walls are blowed to through high pressure flexible metallic conduit,
Since the high pressure flexible metallic conduit air outlet is uniformly distributed along PE inside pipe wall circumferential directions and air-out direction is perpendicular to PE inside pipe walls, high pressure cold wind
Uniformly the tube wall surrounding of heavy caliber PE pipes can be cooled down, dead angle, cold wind is not stayed to blow to PE pipes by heat exchange temperature
Rising becomes hot wind；
Step 2 starts hot wind progress pumpback of the high negative pressure extractor fan to step 1 Jing Guo heat exchange, and hot wind is through hot exhausting
After metal hose pumpback, it is discharged from high negative pressure extractor fan hot-blast outlet；
Step 3, step 1 start high pressure air-cooler while, open die body temperature regulating device ensure core model die body temperature it is steady
It is fixed；
While step 4, heavy caliber PE pipes carry out air-cooled through steps 1 and 2,3 pairs of inner walls, vacuum shaping box water manages PE
Outer wall carries out cooling and shaping；
Further, the hot-blast outlet of the high negative pressure extractor fan is connected with raw material preheating device, can will be in step 2
Hot wind be sent into raw material preheating device preheated.
The present invention in use, die body temperature regulating device ensure die temperature will not due to heat is taken away in hot wind pumpback temperature it is quick
Decline, while high pressure air-cooler cools down PE inside pipe walls by high pressure flexible metallic conduit, high negative pressure extractor fan is to warp
The hot wind for crossing heat exchange carries out pumpback, and PE pipes exit forms negative pressure at this time, ensures to be in negative pressure state in vacuum shaping box,
Vacuum shaping box carries out water cooling to PE pipe outer walls simultaneously；Further, using the hot-blast outlet of the high negative pressure exhaust fan and original
Material preheater device is connected, and using wind as the medium of heat exchange, pre- recuperation of heat is sent into the raw material drying process of front end, is subtracted
Few demand of the technique front end to hot wind, energy-saving and emission-reduction.
Advantageous effect：Reasonable design of the present invention, when being cooled down to heavy caliber PE pipes, cooling efficiency is high, avoids simultaneously
Tube wall occurs that wall unevenness is even, empty, phenomena such as collapsing.
Description of the drawings
Fig. 1：The structural schematic diagram of the embodiment of the present invention 1.
In figure：1. die body temperature regulating device, 2. high pressure cold wind conveying devices, 3. hot wind pumpback devices, 11. core models, 12. squeeze out
Machine handpiece body, 111. direct tube sections, 112. conical sections, 113. axially extending bores, 114. hot air draft pipes, 21. high pressure flexible metallic conduits, 22
First trepanning, 23 high pressure air-coolers, 24 vacuum shaping box, 25.PE pipes, 211. control valves, 31. hot exhausting metal hoses, 32.
Second trepanning, 33. hot exhausting metal hose holder, 34. high negative pressure extractor fans.
Specific implementation mode
The following provides a specific embodiment of the present invention, for making further details of explanation to invention content.Not because
The scope of the claims of this limitation present invention, it is every to utilize equivalent structure or equivalent process made by description of the invention and accompanying drawing content
Transformation, is applied directly or indirectly in other relevant technical fields, and is included within the scope of the present invention.
Embodiment 1, referring to Fig.1, a kind of heavy caliber PE pipes cooling and shaping device, including die body temperature regulating device 1, high pressure cold wind
Conveying device 2, hot wind pumpback device 3.
The die body temperature regulating device 1 is mounted on core model 11, and the core model 11 includes direct tube section 111 and conical section 112, institute
It states conical section 112 to be located in cross-head body 12,111 center of the direct tube section is equipped with axially extending bore 113, the die body temperature control
Device 1 is mounted on the inner wall of the core model direct tube section 111.
The high pressure cold wind conveying device 2 includes 4 high pressure flexible metallic conduits 21, the cross-head body 12 and core model cone
Corresponding position in shape section 112, which is circumferentially evenly equipped with 4, can hold the first trepanning 22 that the high pressure flexible metallic conduit 21 passes through, the height
Pressure 21 one end of metal hose is connected with the outlet of high pressure air-cooler 23 outside the handpiece body 12, and the high-pressure metal is soft
During the other end of pipe 21 is from the first trepanning 22 into the axially extending bore 113 of the core model direct tube section 111, and through the axial direction
Through-hole 113 is pierced by into vacuum shaping box 24, and 21 air outlet of the high pressure flexible metallic conduit is circumferentially uniformly distributed along 25 inner wall of PE pipes and goes out
Wind direction is perpendicular to 25 inner wall of PE pipes.
The hot wind pumpback device 3 includes 8 hot exhausting metal hoses 31, the cross-head body 12 and core model taper
Corresponding position in section 112, which further includes circumferentially uniformly distributed 8, can hold the second trepanning 32 that the hot exhausting metal hose passes through, institute
State and be equipped with hot exhausting metal hose holder 33 in core model axially extending bore 113, described hot 31 one end of exhausting metal hose be mounted on
34 suction opening of high negative pressure extractor fan connection outside the handpiece body 12, the other end of hot exhausting metal hose 31 are opened from second
Hole 32 enters the axially extending bore 113 of the core model direct tube section 111 and on the hot exhausting metal hose holder 33.
The mica heating plate installed on the inner wall of the die body temperature regulating device 1 including core model direct tube section 111, electroheat pair and
External PLC controls, the mica heating plate inner wall install heat-resisting material, ensure not taking away die body temperature when hot wind pumpback.
The high negative pressure extractor fan 34 is high negative pressure vortex pump.
Installation and adjustment valve 211 on the high pressure flexible metallic conduit 21 controls gas flow.
113 outlet end of axially extending bore of the core model direct tube section is equipped with hot air draft pipe 114, the high pressure cold wind conveying
4 high pressure flexible metallic conduits of device 2 are circumferential to be uniformly mounted on hot air draft pipe 114,4 high pressure flexible metallic conduits 21
Air-out direction perpendicular to the tube wall of PE pipes 25, do not stay dead angle, ensure that tube wall thickness is controllably shunk.
The hot exhausting metal hose holder 33 is partition board, and multiple permissions heat is circumferentially uniformly provided on the partition board and is taken out
Wind metal hose and high pressure flexible metallic conduit by hole.
The hot-blast outlet of the high negative pressure extractor fan 34 is connected with raw material preheating device.
A kind of heavy caliber PE pipes cooling and shaping method is carried out using above-mentioned apparatus, is included the following steps：
Step 1 starts high pressure air-cooler 23, and cold wind is blown out from high pressure air-cooler 23, and PE is blowed to through high pressure flexible metallic conduit 21
25 inner wall of pipe, since 21 air outlet of the high pressure flexible metallic conduit along 25 inner wall of PE pipes circumferentially perpendicular to PE manage by uniformly distributed and air-out direction
25 inner walls, high pressure cold wind can uniformly cool down the tube wall surrounding of heavy caliber PE pipes, and dead angle, cold wind is not stayed to blow to PE pipes warp
Heat exchange temperature is crossed to rise as hot wind；
Step 2 starts hot wind progress pumpback of the high negative pressure extractor fan 34 to step 1 Jing Guo heat exchange, and hot wind is taken out through heat
After wind metal hose pumpback, it is discharged from 34 hot-blast outlet of high negative pressure extractor fan；
Step 3, while step 1 starts high pressure air-cooler 23, open die body temperature regulating device 1 and ensure core model die body temperature
Stablize；
While step 4, PE pipes 25 carry out air-cooled through steps 1 and 2,3 pairs of inner walls, vacuum shaping box 24 manages PE with water outer
Wall carries out cooling and shaping；
Step 5 can preheat the feeding raw material preheating device of the hot wind in step 2.
The present invention using die body temperature regulating device 1 ensure core model 11 temperature will not due to heat is taken away in hot wind pumpback temperature it is quick
Decline, while high pressure air-cooler 23 cools down 25 inner wall of PE pipes by high pressure flexible metallic conduit 21, high negative pressure exhausting dress
It sets 34 pairs of hot winds Jing Guo heat exchange and carries out pumpback, 25 exit of PE pipes forms negative pressure at this time, ensures in vacuum shaping box 24
In negative pressure state, while vacuum shaping box 24 carries out water cooling to 25 outer wall of PE pipes；Further, using the high negative pressure exhausting
The hot-blast outlet of device is connected with raw material preheating device, using wind as the medium of heat exchange, before pre- recuperation of heat is sent into
The raw material drying process at end reduces demand of the technique front end to hot wind, energy-saving and emission-reduction.
Claims (8)
1. a kind of heavy caliber PE pipes cooling and shaping device and method, it is characterised in that：It is defeated including die body temperature regulating device, high pressure cold wind
Send device, hot wind pumpback device；
The die body temperature regulating device is mounted on core model, and the core model includes direct tube section and conical section, and the conical section, which is located at, to be squeezed
Go out in machine handpiece body, the direct tube section center is equipped with axially extending bore, and the die body temperature regulating device is mounted on the core model direct tube section
Inner wall on；
The high pressure cold wind conveying device includes a plurality of high pressure flexible metallic conduit, on the cross-head body and core model conical section
Corresponding position is circumferentially evenly equipped with multiple the first trepannings held the high pressure flexible metallic conduit and passed through, described high pressure flexible metallic conduit one end
It is connected with the high pressure air-cooler air outlet outside the handpiece body, the other end of the high pressure flexible metallic conduit is from first
Trepanning enters in the axially extending bore of the core model direct tube section, and is pierced by into vacuum shaping box through the axially extending bore, institute
High pressure flexible metallic conduit air outlet is stated along the circumferential uniformly distributed and air-out direction of PE inside pipe walls perpendicular to PE inside pipe walls；
The hot wind pumpback device includes a plurality of hot exhausting metal hose, the phase on the cross-head body and core model conical section
Answer multiple the second trepannings held the hot exhausting metal hose and passed through that position further includes circumferentially uniformly distributed, the core model axially logical
Equipped with hot exhausting metal hose holder, described hot exhausting metal hose one end and outside the cross-head body in hole
High negative pressure extractor fan suction opening be connected, the other end from the second trepanning enter the core model direct tube section the axially extending bore
And on the hot exhausting metal hose holder.
2. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1, it is characterised in that：The die body temperature control dress
Set the mica heating plate installed on the inner wall including core model direct tube section, electroheat pair and outside PLC controls, the mica heating plate
Inner wall installs heat-resisting material.
3. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1 or 2, it is characterised in that：The high negative pressure
Extractor fan is high negative pressure vortex pump or high negative pressure exhaust fan.
4. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1 or 2, it is characterised in that：The high pressure gold
Belong to the control valve of installation gas flow processed on hose.
5. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1, it is characterised in that：The core model direct tube section
Axially extending bore outlet end hot air draft pipe is installed, a plurality of high pressure flexible metallic conduit week of the high pressure cold wind conveying device
To being uniformly mounted on hot air draft pipe, the inner wall of the air-out directions of multiple high pressure flexible metallic conduits perpendicular to PE pipes.
6. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1, it is characterised in that：The hot exhausting metal
Hose support is partition board, and multiple permissions hot exhausting metal hose and high pressure flexible metallic conduit are circumferentially uniformly provided on the partition board
By hole.
7. a kind of heavy caliber PE pipes cooling and shaping device according to claim 1, it is characterised in that：The high negative pressure exhausting
The hot-blast outlet of device is connected with raw material preheating device.
8. a kind of carrying out cooling method using heavy caliber PE pipe cooling and shaping devices, it is characterised in that：Include the following steps：
Step 1 starts high pressure air-cooler, and cold wind is blown out from high pressure air-cooler, and PE inside pipe walls are blowed to through high pressure flexible metallic conduit, due to
The high pressure flexible metallic conduit air outlet is circumferentially evenly distributed with along PE inside pipe walls and air-out direction is perpendicular to PE inside pipe walls；
Step 2 starts hot wind progress pumpback of the high negative pressure extractor fan to step 1 Jing Guo heat exchange, and hot wind is through hot exhausting metal
After hose pumpback, it is discharged from high negative pressure extractor fan hot-blast outlet；
Step 3, step 1 start high pressure air-cooler while, open die body temperature regulating device ensure core model die body temperature stablize；
While step 4, heavy caliber PE pipes carry out air-cooled through steps 1 and 2,3 pairs of inner walls, vacuum shaping box water is to PE pipe outer walls
Carry out cooling and shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895465.6A CN108790107A (en) | 2018-08-08 | 2018-08-08 | A kind of heavy caliber PE pipes cooling and shaping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895465.6A CN108790107A (en) | 2018-08-08 | 2018-08-08 | A kind of heavy caliber PE pipes cooling and shaping device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108790107A true CN108790107A (en) | 2018-11-13 |
Family
ID=64079569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810895465.6A Pending CN108790107A (en) | 2018-08-08 | 2018-08-08 | A kind of heavy caliber PE pipes cooling and shaping device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108790107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116277878A (en) * | 2023-05-24 | 2023-06-23 | 乐山嘉诚建材有限公司 | Tunnel type multidirectional cooling device for PVC pipe production |
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| CN203046207U (en) * | 2013-01-22 | 2013-07-10 | 上海金纬管道设备制造有限公司 | Handpiece for manufacturing plastic pipe fitting |
| CN104527013A (en) * | 2014-12-13 | 2015-04-22 | 四川清川管业有限公司 | Waste heat recovering and utilizing system and method of plastic pipe production line |
| CN204367371U (en) * | 2014-12-18 | 2015-06-03 | 浙江中元枫叶管业有限公司 | Tubing type embryo extrudes cooling device |
| CN106346742A (en) * | 2016-09-30 | 2017-01-25 | 福州大学 | High-precision large-diameter pipe extruder head and use method thereof |
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2018
- 2018-08-08 CN CN201810895465.6A patent/CN108790107A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203046207U (en) * | 2013-01-22 | 2013-07-10 | 上海金纬管道设备制造有限公司 | Handpiece for manufacturing plastic pipe fitting |
| CN104527013A (en) * | 2014-12-13 | 2015-04-22 | 四川清川管业有限公司 | Waste heat recovering and utilizing system and method of plastic pipe production line |
| CN204367371U (en) * | 2014-12-18 | 2015-06-03 | 浙江中元枫叶管业有限公司 | Tubing type embryo extrudes cooling device |
| CN106346742A (en) * | 2016-09-30 | 2017-01-25 | 福州大学 | High-precision large-diameter pipe extruder head and use method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116277878A (en) * | 2023-05-24 | 2023-06-23 | 乐山嘉诚建材有限公司 | Tunnel type multidirectional cooling device for PVC pipe production |
| CN116277878B (en) * | 2023-05-24 | 2023-08-22 | 乐山嘉诚建材有限公司 | Tunnel type multidirectional cooling device for PVC pipe production |
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| PB01 | Publication | ||
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Application publication date: 20181113 |