CN109278278A - Polyethylene solid wall pipe and its expanding and shaping device - Google Patents
Polyethylene solid wall pipe and its expanding and shaping device Download PDFInfo
- Publication number
- CN109278278A CN109278278A CN201811142197.7A CN201811142197A CN109278278A CN 109278278 A CN109278278 A CN 109278278A CN 201811142197 A CN201811142197 A CN 201811142197A CN 109278278 A CN109278278 A CN 109278278A
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- CN
- China
- Prior art keywords
- expanding
- tubing
- block
- flaring
- wall 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.)
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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
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
Abstract
The invention discloses a kind of polyethylene solid wall pipe and its expanding and shaping devices, it is related to the molding equipment field of plastic conduit, its key points of the technical solution are that including base, base be equipped with can be sheathed with tubing outer ring and with the spaced annular Far-infrared Heating component of tubing；The flaring mechanism being additionally provided in the end of insertion tubing on base, flaring mechanism include that the flaring component to tubing flaring, guiding and the driving device for limiting the guide mechanism of the flaring component direction of motion and flaring component being driven to move are moved along tubing radial direction.It has the technical effect that 1, heated using annular Far-infrared Heating component, avoid the heating equipment for using glycerol as heat medium, to be unavoidably mixed into moisture in glycerol, reduce its decomposition temperature, generate a large amount of smog, pollute environment.2, by the change to fever form and to the control of the temperature difference, the axial shrinkage rate of tubing is controlled well, avoids the use of large-scale heating equipment, the electricity consumption of saving 50% in contrast.
Description
Technical field
The present invention relates to the molding equipment field of plastic conduit, in particular to the expanding and shaping of a kind of polyethylene solid wall pipe fills
It sets.
Background technique
Tubing is easy to carry out uniaxial (i.e. axial) stretching orientation in forming process.As long as increasing tubing traction and squeezing out
Speed ratio this orientation can be thus achieved.But this axial tension orientation is skimble-skamble to the performance of tubing, though because it
The intensity of tubing axial direction so is increased by stretching orientation, but reduces tubing radial direction, i.e. circumferential intensity.
This is for being extremely harmful for plastic pipe, especially feed pipe.Because it can reduce the Hydraulic Explosion of tubing
Broken intensity.This is also in the quality standard of tubing, the longitudinal welds of regulation tubing have to the original less than or equal to 5%
Cause.The ideal orientation that stretches should be two-way.By biaxial stretch-formed orientation, the axial strength of tubing had both been increased, while
The radial direction of tubing is increased, i.e., circumferential intensity.On the basis of pipe material intensity greatly increases, reduction tubing wall can be used
Thickness, but still the method for keeping the original hydraulic burst strength of tubing reduces the cost of product to save material.
Currently, needing to do to reduce interface the use of pipe fitting on the end of some tubing, tubing is avoided to connect close
Envelope property is deteriorated because of the gap of the use generation of pipe fitting.Therefore, it during tube forming, needs the end of tubing
Tubing, is just amplified the radial distance of a wall thickness by flaring, and the inner wall of root canal of using the lavatory material is sheathed on the inner wall of flaring,
Complete the docking and sealing of tubing.
To sum up, tubing is when flaring, and while increasing the radial direction of tubing, the ratio flare formation of tubing becomes hardly possible
Point will lead to the circumferential strength reduction at tubing flaring if the wall thickness of tubing is reduced, and improve the leakproofness of interface, but
It is not to be able to maintain the original hydraulic burst strength of tubing.
Summary of the invention
The object of the present invention is to provide a kind of expanding and shaping device of polyethylene solid wall pipe, includes effective control and expand
Open molding shrinkage, the advantage that the circumferential intensity of flaring is guaranteed with improved device energy conservation environmental protection.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of expanding and shaping device of polyethylene solid wall pipe, including base, the base, which is equipped with, can be sheathed with tubing outer ring
And with the spaced annular Far-infrared Heating component of tubing；
The flaring mechanism being additionally provided in the end of insertion tubing on the base, flaring mechanism includes moving along tubing radial direction
To tubing flaring flaring component, guiding and limit flaring the component direction of motion guide mechanism and driving flaring component move
Driving device.
By using above-mentioned technical proposal, tubing ionizes under the irradiation of the ray of annular Far-infrared Heating component
With excitation, macromolecular free radical is generated, radical reaction is carried out, and generate some secondary reactions, crosslinks, molecular structure
It is netted by linearly changing into, specific function is formed, after the later high molecular material of crosslinking with radiation is heated, becomes high
State is played, under the action of flaring mechanism, is easy to be expanded, after cooling, this expansion state is just retained, and completes flaring function.
Further setting: the flaring component includes at least three circumferentially expansion blocks of gap distribution and between being distributed in
Expanding block in gap expands block and expanding block and is linked by guide mechanism while carrying out radial slippage.
By using above-mentioned technical proposal, the interior of tubing can be acted on through the main body to expansion by expansion block formation
Expanded on wall, expand block during radial motion, need there are gap for its activity, but be not enough to be formed entire
The circle being affixed on inside tubing does a supplement using expanding block on gap, forms full circle, completely sticks on the inner wall of tubing
On, when expansion, the stress of tubing is more uniform, on circumference everywhere in radial dilatation ratio it is consistent, expansion precision obtains
Preferably control.
Further setting: the guide mechanism includes disk, along the T-type guide mechanism of disk radial motion and along disc shaft
To the Xie Dao mechanism of movement, the driving device pushes Xie Dao mechanism and T-type guide mechanism to link and drives expansion block and swelling
Block moves radially.
By using above-mentioned technical proposal, the mutual linkage action of Xie Dao mechanism and T-type guide mechanism in guide mechanism,
Realize that by the conversion of motion of axial direction be radial reciprocating motion.
Further setting: the Xie Dao mechanism includes being threaded through at disc centre along the driving link that axis is reciprocal, driving link
It is equipped with the first inclined-plane, block is expanded and expanding block is equipped with the second inclined-plane cooperated with the first inclined-plane, the first inclined-plane and second is tiltedly
There is a T-type guide sliding structure, the driving device acts on driving link between face.
By using above-mentioned technical proposal, the fit structure on the first inclined-plane and the second inclined-plane makes the axial direction of driving link
Conversion of motion be diametrically reciprocate.
Further setting: the surface roughness on first inclined-plane and the second inclined-plane is below 0.4.
By using above-mentioned technical proposal, the first inclined-plane and the second inclined-plane are very smooth, reduce the mistake of mechanical mechanism cooperation
Difference.
Further setting: the T-type guide mechanism include the T-type sliding slot being provided with disk in the radial direction and be set to expansion
On block and expanding block with T-type sliding block that cooperation is slid on T-type sliding slot.
By using above-mentioned technical proposal, expansion block and expanding block are defined by the cooperation of upper T-type sliding slot and T-type sliding block
Motion path, also ensure expansion block and expanding block do not fall out.
Further setting: the driving device is the electric cylinder driven by servo motor.
By using above-mentioned technical proposal, electric cylinder be by the modular product of servo motor and lead screw integrated design,
The rotary motion of servo motor is converted into moving along a straight line, Serve Motor Control can reach accurate revolving speed control, and transmission is flat
Surely, velocity-stabilization can control velocity perturbation below 0.5%.
Further setting: the outer ring at the top of the expansion block and expanding block is equipped with the conical surface, and the cone angle of the conical surface takes 25 °
~35 °.
By using above-mentioned technical proposal, cone angle is too small, and the conical surface is opposite can be long, will cause tubing tapered portion by
To being fully cooled, expand not in place；And frictional force is increased, it is unfavorable for the control of product axial shrinkage rate；When the conical surface is more than 45,
The limitation dilating effect of the conical surface disappears substantially, is equally also unfavorable for the control of product axial shrinkage rate.
Further setting: the inside of the expansion block is equipped with coolant flow channel, the cooling water source of the external circulation of coolant flow channel.
By using above-mentioned technical proposal, the good heat conduction effect of mold can be utilized directly and be opened on the expansion block on mold
If cold passage is cooled down.
Further setting: the annular Far-infrared Heating component is made of ceramic materials.
It by using above-mentioned technical proposal, is heated using matching principle of absorption and radiation mechanism, so-called matching absorbs
Principle, the molecule for exactly constituting substance are generally all carrying out complicated molecular motion, and molecular motion is fiercer, generated
Heat is more, and temperature is also higher, if this motion of matter molecule will be generated altogether by identical frequency electromagnetic wave irradiation
Fiercer movement occurs for the energy of ring, electromagnetic wave absorption, and temperature rises with it, and reaches fever and temperature rise effect.
In conclusion the invention has the following advantages: 1, heated using annular Far-infrared Heating component, avoid
Using traditional heating equipment, heat medium is used glycerol as, point decomposition temperature of glycerol is higher than the expansion temperature of tubing
It spends, in process of expansion, moisture is unavoidably mixed into glycerol, reduces its decomposition temperature, generate a large amount of smog, pollute ring
Border, and glycerol needs to wash, and the water quality after cleaning also results in environmental pollution, is heated using annular Far-infrared Heating component
The above problem is then avoided well.
2, the heat form of annular Far-infrared Heating component is unlike traditional heating, by changing to fever form
Change and the control to the temperature difference, effectively overcome large-scale heating equipment bring temperature overshot phenomenon, and temperature error is less than 2 DEG C, temperature
The control of degree is more accurate, is capable of the axial shrinkage rate of fine tubing, and can be avoided the use of large-scale heating equipment, with it
50% electricity consumption is saved in comparison.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the annular Far-infrared Heating component under the first preferred embodiment；
Fig. 2 is the structural schematic diagram of the expanding and shaping device of the polyethylene solid wall pipe under the first preferred embodiment；
Fig. 3 is the structural schematic diagram of T-type guide mechanism；
Fig. 4 is the side view of the expanding and shaping device of polyethylene solid wall pipe；
Fig. 5 is the structural schematic diagram of Xie Dao mechanism；
Fig. 6 is the operation schematic diagram of the expanding and shaping device of polyethylene solid wall pipe；
Fig. 7 is the artwork under second of preferred embodiment.
In figure, 1, annular Far-infrared Heating component；2, it is flared component；3, guide mechanism；4, driving device；5, pipe-expanding machine
Structure；6, block is expanded；7, expanding block；8, T-type guide mechanism；81, T-type sliding slot；82, T-type sliding block；9, driving link；10, first tiltedly
Face；11, the second inclined-plane；12, T-type guide sliding structure；13, coolant flow channel；14, air duct；15, tubing；16, Xie Dao mechanism；17, circle
Disk.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
The first preferred embodiment:
A kind of expanding and shaping device of polyethylene solid wall pipe, as shown in Figure 1, including base (not showing in figure), base is equipped with
Can be sheathed with 15 outer ring of tubing and with the spaced annular Far-infrared Heating component 1 of tubing 15, annular Far-infrared Heating portion
Part 1 is made of ceramic materials and structure in a ring, is not in that the inclined wall of heat-shrink tube is existing to 15 homogeneous heating of tubing, after expansion
As expansion suitable for various specifications heat-shrink tube.
As shown in Fig. 2, being additionally provided with the flaring mechanism 5 in the end of insertion tubing 15 on base, flaring mechanism 5 includes along pipe
Flaring component 2 that the movement of 15 radial direction of material be flared tubing 15 guides and limits the guide mechanism for being flared 2 direction of motion of component
3 driving devices 4 moved with driving flaring component 2.
As shown in figure 3, flaring component 2 includes at least three circumferentially the expansion block 6 of gap distribution and being distributed in gap
Interior expanding block 7 expands block 6 and expanding block 7 and is linked by guide mechanism 3 while carrying out radial slippage.
Guide mechanism 3 includes disk 17 and the T-type guide mechanism 8 along 17 radial motion of disk, T-type guide mechanism 8 include
It is provided with the T-type sliding slot 81 in the radial direction of disk 17 and matches on expansion block 6 and expanding block 7 with being slid on T-type sliding slot 81
The T-type sliding block 82 of conjunction.Being limited by T-type guide mechanism 8 can only be according to the setting side of T-type sliding slot 81 on expansion block 6 and expanding block 7
Ejection or withdrawal movement are completed in sliding upwards.
As shown in Figure 4 and Figure 5, guide mechanism 3 further includes the Xie Dao mechanism 16 being axially moved along disk 17, Xie Dao mechanism 16
Including being threaded through at 17 center of disk along the driving link 9 that axis is reciprocal, driving link 9 is equipped with the first inclined-plane 10, expands block 6 and swollen
Tight block 7 is equipped with the second inclined-plane 11 cooperated with the first inclined-plane 10, and the surface roughness on the first inclined-plane 10 and the second inclined-plane 11 exists
0.4 or less.Driving device 4 is the electric cylinder driven by servo motor, and driving device 4 acts on driving link 9, driving device 4
Driving link 9 is pushed to be axially moved, 11 guide function of the first inclined-plane 10 and the second inclined-plane of driving link 9, in T-type guide mechanism 8
Under limitation, expands block 6 and the generation of expanding block 7 moves radially, realize ejection.The contact portion on the first inclined-plane 10 and the second inclined-plane 11
Only unidirectional guiding, is improved to T-type guide sliding structure 12, the structure of T-type guide sliding structure 12 and T-type guide mechanism 8 on this basis
Principle is identical, after can making ejection, is withdrawn using T-type guide sliding structure 12, Xie Dao mechanism 16 realizes reciprocal guide function.
As shown in fig. 6, the outer ring at the top of expansion block 6 and expanding block 7 is equipped with the conical surface (not showing in figure), the cone angle of the conical surface
Take 25 °~35 °.Reduce the frictional force of end, conducive to the control of product axial shrinkage rate.
Dilatation mold is equipped with cooling system, and cooling system includes the coolant flow channel 13 that the inside of expansion block 6 is arranged in, cooling
The cooling water source of the external circulation of runner 13.After tubing 15 heats, under the action of flaring mechanism 5, it is easy to be expanded, is needed after expansion
It to cool down rapidly, this expansion state is just retained, and completes flaring.
Dilatation mold, dilatation mold is vacuum dilatation mold, and the material of mold is stainless steel or tin bronze.Continuous expansion
Mode be die type vacuum expansion.The inside of the expansion block 6 of vacuum dilatation mold has air duct 14, and air duct 14 is external to be vacuumized
Equipment.Vacuum mold, by the air in air extractor extraction type chamber, can make pipe after mold is affixed on tubing 15 in this way
The inner wall of material 15 is bonded closer, and expansion precision is higher.After the expansion is completed, air extractor blowback forms scavenger system, will
The inner wall of tubing 15 is detached from from expansion block 6 and expanding block 7.
It should be noted that expansion block 6 and expanding block 7 are as the component conformed on 15 inner wall of tubing, the shape on surface
It can be changed according to the shape of tubing 15, such as when cooperation solid wall pipe, avoid passing through CNC and process corrugated, cooperation inner wall
Smooth tubing 15 need to process on the surface for expanding block 6 and expanding block 7 smooth.
Second of preferred embodiment:
A kind of expanding and shaping technique of polyethylene solid wall pipe, as shown in fig. 7, comprises following steps:
S1: one end of flaring needed for tubing 15 is fed through on dilatation mold by equipment, and dilatation mold is contacted with tubing 15
The roughness on surface is below 0.4.
S2: the required flared end of tubing 15 is heated using annular Far-infrared Heating component 1, so that required flared end
Softening, the temperature that annular Far-infrared Heating component 1 heats are 85~95 DEG C, and the wavelength of the infrared ray of transmitting is 5.6~20 microns.
S3: heating is no more than the critical-temperature melted and is flared by dilatation mold to required expanded end after softening,
Dilatation mold is vacuum dilatation mold, therefore, expands dilatation mold and carries out under vacuum conditions, vacuum degree holds 0.04~
The expansion of 0.07Mpa, dilatation mold are driven by servo motor, and rate of expansion is controlled in 15~20 m/min；
In S3, vacuum mold is after mold is affixed on tubing 15, by the air in air extractor extraction type chamber, so that tubing
15 inner wall fits closely.
S4: after being flared to scheduled diameter, the cooling system run through on dilatation mold is cooled and shaped, expansion
Cooling system on mold is water cooling, the external cooling water source of dilatation mold.
S5: after cooling, by air extractor blowback, forming scavenger system, by the scavenger system on dilatation mold by gas
It is sent into the inner wall of pipe, Contact-sorption state.
S6: dilatation mold resets, and demoulds to the tubing 15 after expansion.
The third preferred embodiment:
A kind of polyethylene solid wall pipe prepares molding using the expanding and shaping device under the first preferred embodiment.
The above embodiments are only explanation of the invention, are not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of expanding and shaping device of polyethylene solid wall pipe, including base, it is characterised in that: the base, which is equipped with, to be covered
If to tubing (15) outer ring and with the spaced annular Far-infrared Heating component (1) of tubing (15)；
The flaring mechanism (5) being additionally provided in the end of insertion tubing (15) on the base, flaring mechanism (5) includes along tubing
(15) radial direction movement be flared tubing (15) flaring component (2) is guided and is limited and is flared leading for component (2) direction of motion
Draw the driving device (4) of mechanism (3) and driving flaring component (2) movement.
2. the expanding and shaping device of polyethylene solid wall pipe according to claim 1, it is characterised in that: the flaring component
(2) include at least three circumferentially the expansion block (6) of gap distribution and the expanding blocks (7) being distributed in gap, expand block (6)
It is linked with expanding block (7) by guide mechanism (3) while carrying out radial slippage.
3. the expanding and shaping device of polyethylene solid wall pipe according to claim 2, it is characterised in that: the guide mechanism
It (3) include disk (17), along the T-type guide mechanism (8) of disk (17) radial motion and tiltedly leading along disk (17) axial movement
Mechanism (16), the driving device (4) push Xie Dao mechanism (16) and T-type guide mechanism (8) to link and drive expansion block (6) and
Expanding block (7) moves radially.
4. the expanding and shaping device of polyethylene solid wall pipe according to claim 3, it is characterised in that: the Xie Dao mechanism
It (16) include being threaded through at disk (17) center along the reciprocal driving link of axis (9), driving link (9) is equipped with the first inclined-plane
(10), it expands block (6) and expanding block (7) is equipped with the second inclined-plane (11) cooperated with the first inclined-plane (10), the first inclined-plane (10)
There is a T-type guide sliding structure (12) between the second inclined-plane (11), the driving device (4) acts on driving link (9).
5. according to the expanding and shaping device for the polyethylene solid wall pipe that claim 4 is stated, it is characterised in that: first inclined-plane (10)
Surface roughness with the second inclined-plane (11) is below 0.4.
6. according to the expanding and shaping device of the polyethylene solid wall pipe of claim 3 or 4 or 5, it is characterised in that: the T-type slide guide
Mechanism (8) includes the T-type sliding slot (81) being provided with disk (17) in the radial direction and is set on expansion block (6) and expanding block (7)
With the T-type sliding block (82) for sliding cooperation on T-type sliding slot (81).
7. the expanding and shaping device of polyethylene solid wall pipe according to claim 1, it is characterised in that: the driving device
(4) electric cylinder to be driven by servo motor.
8. the expanding and shaping device of polyethylene solid wall pipe according to claim 1, it is characterised in that: the expansion block (6)
It is equipped with the conical surface with the outer ring at the top of expanding block (7), the cone angle of the conical surface takes 25 °~35 °.
9. the expanding and shaping device of polyethylene solid wall pipe according to claim 1, it is characterised in that: the expansion block (6)
Inside be equipped with coolant flow channel (13), the cooling water source of coolant flow channel (13) external circulation.
10. a kind of polyethylene solid wall pipe, it is characterised in that: filled using expanding and shaping as claimed in any one of claims 1 to 9 wherein
Set preparation molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142197.7A CN109278278B (en) | 2018-09-28 | 2018-09-28 | Polyethylene solid wall pipe and expansion forming device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142197.7A CN109278278B (en) | 2018-09-28 | 2018-09-28 | Polyethylene solid wall pipe and expansion forming device thereof |
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| Publication Number | Publication Date |
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| CN109278278A true CN109278278A (en) | 2019-01-29 |
| CN109278278B CN109278278B (en) | 2020-09-04 |
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ID=65182491
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811142197.7A Active CN109278278B (en) | 2018-09-28 | 2018-09-28 | Polyethylene solid wall pipe and expansion forming device thereof |
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| Country | Link |
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| CN (1) | CN109278278B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248458A (en) * | 2020-09-24 | 2021-01-22 | 湖南润华新材料有限公司 | High-temperature bonder for connecting pipes produced by fire hose |
| WO2022099630A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城市瑞通塑胶有限公司 | Plastic pipe flaring die |
| CN115195096A (en) * | 2022-09-16 | 2022-10-18 | 河北建投宝塑管业有限公司 | Automatic adjusting system for flaring forming of PVC-O pipe and control method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003191332A (en) * | 2001-12-26 | 2003-07-08 | Hakko Co Ltd | Method for melt molding inner tube in duct |
| JP2008230051A (en) * | 2007-03-20 | 2008-10-02 | Nissei Plastics Ind Co | Injection device equipped with screw heating circuit |
| CN201907202U (en) * | 2010-09-13 | 2011-07-27 | 湖南科技大学 | Diameter-expanding and forming device of thermoplastic plastic pipes |
| CN202943179U (en) * | 2012-12-03 | 2013-05-22 | 镇江市恒源汽车零部件有限公司 | Flaring and sizing mill for pipe fittings |
| CN103568313A (en) * | 2012-08-11 | 2014-02-12 | 宁波康润机械科技有限公司 | Plastic pipe material flaring device |
| CN105437529A (en) * | 2014-08-26 | 2016-03-30 | 中达电子(江苏)有限公司 | A method for manufacturing a casing pipe expansion and a pipe-expanding machine |
| CN107932890A (en) * | 2017-12-25 | 2018-04-20 | 上海长园电子材料有限公司 | A kind of combined hot draw dilatation mold |
-
2018
- 2018-09-28 CN CN201811142197.7A patent/CN109278278B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003191332A (en) * | 2001-12-26 | 2003-07-08 | Hakko Co Ltd | Method for melt molding inner tube in duct |
| JP2008230051A (en) * | 2007-03-20 | 2008-10-02 | Nissei Plastics Ind Co | Injection device equipped with screw heating circuit |
| CN201907202U (en) * | 2010-09-13 | 2011-07-27 | 湖南科技大学 | Diameter-expanding and forming device of thermoplastic plastic pipes |
| CN103568313A (en) * | 2012-08-11 | 2014-02-12 | 宁波康润机械科技有限公司 | Plastic pipe material flaring device |
| CN202943179U (en) * | 2012-12-03 | 2013-05-22 | 镇江市恒源汽车零部件有限公司 | Flaring and sizing mill for pipe fittings |
| CN105437529A (en) * | 2014-08-26 | 2016-03-30 | 中达电子(江苏)有限公司 | A method for manufacturing a casing pipe expansion and a pipe-expanding machine |
| CN107932890A (en) * | 2017-12-25 | 2018-04-20 | 上海长园电子材料有限公司 | A kind of combined hot draw dilatation mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248458A (en) * | 2020-09-24 | 2021-01-22 | 湖南润华新材料有限公司 | High-temperature bonder for connecting pipes produced by fire hose |
| WO2022099630A1 (en) * | 2020-11-13 | 2022-05-19 | 盐城市瑞通塑胶有限公司 | Plastic pipe flaring die |
| CN115195096A (en) * | 2022-09-16 | 2022-10-18 | 河北建投宝塑管业有限公司 | Automatic adjusting system for flaring forming of PVC-O pipe and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN109278278B (en) | 2020-09-04 |
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