CN109027445A - PP cross-rib enhances PE helical bellows, profile and production method - Google Patents
PP cross-rib enhances PE helical bellows, profile and production method Download PDFInfo
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- CN109027445A CN109027445A CN201810951429.7A CN201810951429A CN109027445A CN 109027445 A CN109027445 A CN 109027445A CN 201810951429 A CN201810951429 A CN 201810951429A CN 109027445 A CN109027445 A CN 109027445A
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- Prior art keywords
- profile
- band
- cross
- skeleton
- rib
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The present invention provides PP cross-rib enhancing PE helical bellows, profile and production method, the bellows include the matrix made of PE band spiral winding and be helically wound it is adjacent squeeze out PE band clinch profile, profile includes PP skeleton and PE layers, PE layers are coated in PP framework, this set is conducive to the connection of profile and matrix, bellows structure is stablized, and the production method of above-mentioned bellows is to be spirally wound on PE band side by side on molding roller bearing to form matrix；PP skeleton is sent into profile die after PP skeleton extruder extrusion PP skeleton；By the periphery cladding trapezoidal clad layer-forming profile of PE of PP skeleton in profile die；Profile is spirally wound at clinch side by side.The bellows structure of this structure is stablized, and can bear the biggish pressure from radial direction, be remarkably improved the ring stiffness of bellows.
Description
Technical field
The present invention relates to municipal corrugated conduits, and in particular to PP cross-rib enhance PE helical bellows, profile and this
The production method of kind tubing.
Background technique
Helical bellows with reinforcing rib are widely used due to sharing effect and ring stiffness with good pipeclay
In the construction of municipal blow-off line, application No. is CN201220283214.0, publication date is the patent text on January 16th, 2013
A kind of enhanced helical bellows of band internal-rib tubing, including inner layer tube wall and outer wall are disclosed in part, on outer wall
It is formed with the hollow form fin of spiral；Tubing is equipped in hollow form fin, the cross section of tubing includes framework and is located in framework
Cross rib and longitudinal rib at an angle to each other.The helical bellows structure of this utility model can bear biggish radial pressure, helicon
The ring stiffness of line pipe is high.But this bellows its inner layer tube wall, outer wall and fin are all using HDPE material, tubing makes
With PP material, after the tubing of the fin cladding PP material of HDPE material, the contact portion of the tubing of PP material is and HDPE material
Outer wall contact, the tubing and outer wall of unlike material can not be fused into an entirety, be unfavorable for pipe structure
Stabilization.
Summary of the invention
To solve problems of the prior art, the present invention provide PP cross-rib enhancing PE helical bellows, profile and
Production method, bellows of the invention, profile and production method can further promote the ring stiffness of bellows, and bellows
Stable structure.
In order to achieve the above objectives, the present invention, which provides PP cross-rib, enhances PE helical bellows, including is twined by PE band spiral
The matrix made of and the profile being helically wound at the adjacent clinch for squeezing out PE band, the profile includes PP bone
Frame and PE layers, PP skeleton includes PP cross-rib and the PP framework for being coated on PP cross-rib periphery, and PE layers are coated in PP framework.
Arrangement above, profile are interior PP cross-rib, outer PP frame structure, and PP is rigidly good, and impact resistance is strong, this structure
Profile structure is stablized, and can bear the biggish pressure from radial direction, be remarkably improved the ring stiffness of bellows；In PP framework
PE layers of upper cladding, since matrix is formed by the band spiral winding of PE material, same material can mutually be fused into an entirety,
The structure of bellows is more stable.
Further, PP framework cross section is polygon or semicircle, and this set can be such that PP frame structure stablizes,
Further promote the non-deformability and ring stiffness of bellows.
Further, the profile is helically wound at the interconnecting piece of adjacent PE band, and this set can enhance
Intensity at interconnecting piece enhances the structural stability of bellows.
Further, the PE band has clinch, and adjacent PE band is linked together by clinch, the type
Material is helically wound at the clinch of adjacent PE band, latter circle PE band is overlapped on previous circle PE band, energy
It bears to can effectively prevent MATRIX CRACKING than connecting bigger radial force between adjacent PE band by end face, enhance the structure of matrix
Stability.
In order to achieve the above objectives, the present invention also provides PP cross-rib profiles, including PP skeleton and PE layers, PP skeleton includes
PP cross-rib and the PP framework for being coated on PP cross-rib periphery, PE layers are coated in PP framework.
Arrangement above, profile are interior PP cross-rib, outer PP frame structure, and PP is rigidly good, and impact resistance is strong, this structure
Profile structure is stablized, and the biggish pressure from radial direction can be born；PE layers are coated in PP framework, since matrix is by PE
The band spiral winding of material forms, and same material can mutually be fused into an entirety, and the structure of bellows is more stable.
Further, PP framework cross section is polygon or semicircle, stablizes PP frame structure.Further promoted
The non-deformability and ring stiffness of bellows.
In order to achieve the above objectives, invention further provides PP cross-rib enhancing PE helical corrugation pipe production methods, including with
Lower step:
A), the PE band of extrusion is spirally wound on the molding roller bearing of continuous rolling by PE band extruder side by side, is used in combination
The neighboring edge compression of adjacent PE band is fused into matrix by the first pinch roller；
B), PP skeleton extruder squeezes out PP skeleton, and PP skeleton is sent into profile die；
C), PE extruder forms the profile with PE layers in PE layers of the periphery cladding of PP skeleton in profile die；
D), the interconnecting piece for being spirally wound on adjacent PE band side by side with PE layers of profile will be squeezed out out of profile die
Place；
E), the second pinch roller rolls the profile with PE layers, makes the profile with PE layers and matrix tight weld.
The above production method, after the PP skeleton that PP skeleton extruder squeezes out coats one layer PE layers in profile die, directly
It is wrapped at the adjacent interconnecting piece for squeezing out PE band, in the molten state, by rolling, profile and matrix are mutually fused into one
Integrally, due to bottom surface and matrix welding that profile and matrix are by profile, welding area is big, therefore profile can reliably be consolidated
It is scheduled on matrix, therefore bellows structure is stablized, and ring stiffness is high.
Further, step a) is specifically included: the PE band of extrusion is spirally wound on continuously by PE band extruder side by side
On the molding roller bearing of rolling, and the clinch compression of the neighboring edge of adjacent PE band is fused into matrix with the first pinch roller.Through
Rolling for the first pinch roller is crossed, adjacent PE band can combine even closer.
Further, step d) is specifically included: the profile squeezed out out of profile die is spirally wound on adjacent PE side by side
At the clinch of band.This set can enhance the intensity at clinch, enhance the structural stability of bellows.
Detailed description of the invention
Fig. 1 is the cross-sectional structure schematic diagram of PP skeleton.
Fig. 2 is that adjacent PE band mutually overlaps the structural schematic diagram for having not gone through and rolling.
Fig. 3 is the cross-sectional structure schematic diagram of profile.
Fig. 4 is the equipment floor plan that bellows is produced using the method for the present invention.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 4, PP cross-rib enhances PE helical bellows, including the base as made of 2 spiral winding of PE band
Body 1 and the profile 3 being helically wound on matrix 1.
PE band 2 includes clinch 21, and adjacent PE band 2 is connected by clinch 21, in the molten state, by the
The pressing of clinch 21 of adjacent PE band 2 is welded together by one pinch roller 6, forms integrated matrix 1, profile 3 is with spiral side
Formula is wrapped at clinch 21.
Profile 3 includes PP skeleton 31 and PE layer 32, and PP skeleton 31 includes PP cross-rib 311 and is coated on PP cross-rib 311
The trapezoidal PP framework 312 of periphery, PE layer 32 are coated in trapezoidal PP framework 312,312 groups of PP cross-rib 311 and trapezoidal PP framework
At 31 stable structure of PP skeleton, when having in external force to bellows, in PP cross-rib 311 and trapezoidal PP framework 312
Under interaction, bellows deformation can be effectively limited, to improve PP cross-rib enhancing PE helical bellows of the present invention
Non-deformability improves ring stiffness；In the external sheath PE layer 32 of trapezoidal PP framework 312, since matrix is by PE material
Band spiral winding forms, after by 3 spiral winding of profile to the adjacent clinch 21 for squeezing out PE band 2, in molten condition
Under, profile 3 and matrix 1 are welded together by the second idler wheel 10, same material can mutually be fused into an entirety, due to type
Material 3 and matrix 1 are the bottom surface and 1 welding of matrix by profile 3, and welding area is big, therefore profile 3 can be securely fixed in base
On body 1, it is not easy to be removed from matrix 1, therefore bellows structure is stablized.
As shown in figures 1 and 3, PP cross-rib profile, including PP skeleton 31 and PE layer 32, PP skeleton 31 include PP cross-rib
The 311 trapezoidal PP frameworks 312 peripheral with PP cross-rib 311 is coated on, PE layer 32 are coated in trapezoidal PP framework 312, PP cross
31 stable structure of PP skeleton of muscle 311 and trapezoidal PP framework 312 composition, is unlikely to deform, at PE layers of external sheath of PP skeleton 31
32, since the matrix 1 of bellows is all that can be conducive to using PE material in the setting of the external sheath PE layer 32 of PP skeleton 31
The connection of profile 3 and matrix 1 because same material can mutually be fused into an entirety, on profile 3 spiral winding to matrix 1 after
Bellows structure can be more stable.
As shown in Figures 1 to 4, PP cross-rib enhances PE helical corrugation pipe production method, comprising the following steps:
A), the PE band 2 of extrusion is spirally wound on the molding roller bearing 5 of continuous rolling by PE band extruder 4 side by side, and
PE band interconnected compression is fused into matrix 1 with the first pinch roller 6；
B), PP skeleton extruder 7 squeezes out PP skeleton 31, and PP skeleton 31 is sent into profile die 8；
C), for PE extruder 9 in the periphery cladding PE layer 32 of PP skeleton 31, being formed has PE layer 32 in profile die 8
Profile 3；
D), the profile 3 squeezed out out of profile die 8 is spirally wound on the adjacent clinch 21 for squeezing out PE band 2 side by side
Place；
E), the second pinch roller 10 rolls profile 3, makes profile 3 and 1 tight weld of matrix.
The above production method, adjacent PE band 2 rolled again with the first pinch roller 6 after mode connects by the way that overlapped it is smooth,
Since bellows is mainly acted on by the power of radial direction when in use, using overlapped, mode connects adjacent PE band 2, adjacent
PE band 2 connection area it is big, when there is the power of radial direction to act on lap-joint, one layer of 2 moment of PE band above can be made
Following one layer of PE band 2 is compressed, can effectively prevent the phenomenon that cracking at clinch, than using by connecting PE band with side
It is more reliable；PP skeleton extruder 7 squeezes out the integral type PP skeleton 31 with PP cross-rib 311 and trapezoidal PP framework 312, PP rigidity
Good, impact resistance is strong, and the skeleton structure of this structure is stablized, and the biggish pressure from radial direction can be born, and guarantees ripple
It manages indeformable；In the external sheath PE layer 32 of PP skeleton 31, since the matrix 1 of bellows is all using PE material, in PP skeleton
The setting of 31 external sheath PE layer 32 can be conducive to the connection of profile 3 Yu matrix 1；Profile 3 is wrapped in adjacent extrusion PE
At the clinch 21 of band 2, the connection at clinch 21 can be made stronger, in the molten state, pass through the stone roller of the second pinch roller 10
Pressure, profile 3 and matrix 1 are mutually fused into an entirety, since profile 3 and matrix 1 are molten by the bottom surface of profile 3 and matrix 1
It connects, welding area is big, therefore profile 3 can be securely fixed on matrix 1, therefore bellows structure is stablized, and ring stiffness is high.
Claims (9)
1.PP cross-rib enhances PE helical bellows, including the matrix as made of PE band spiral winding and is helically wound
Profile on matrix, it is characterised in that: the profile includes PP skeleton and PE layers, and PP skeleton includes PP cross-rib and is coated on
The PP framework of PP cross-rib periphery, PE layers are coated in PP framework.
2. PP cross-rib according to claim 1 enhances PE helical bellows, it is characterised in that: PP framework cross section
For polygon or semicircle.
3. PP cross-rib according to claim 1 enhances PE helical bellows, it is characterised in that: the profile is with spiral side
Formula is wrapped at the interconnecting piece of adjacent PE band.
4. PP cross-rib according to claim 3 enhances PE helical bellows, it is characterised in that: the PE band, which has, to be taken
Socket part, adjacent PE band are linked together by clinch, and the profile is helically wound taking in adjacent PE band
At socket part.
5.PP cross-rib profile, it is characterised in that: including PP skeleton and PE layers, PP skeleton includes PP cross-rib and is coated on PP ten
The PP framework of word muscle periphery, PE layers are coated in PP framework.
6. PP cross-rib profile according to claim 5, it is characterised in that: PP framework cross section is polygon or half
It is round.
7.PP cross-rib enhances PE helical corrugation pipe production method, it is characterised in that: the following steps are included:
A), the PE band of extrusion is spirally wound on the molding roller bearing of continuous rolling by PE band extruder side by side, and with first
The neighboring edge compression of adjacent PE band is fused into matrix by pinch roller；
B), PP skeleton extruder squeezes out PP skeleton, and PP skeleton is sent into profile die；
C), PE extruder forms the profile with PE layers in PE layers of the periphery cladding of PP skeleton in profile die；
D), the profile with PE layers squeezed out out of profile die is spirally wound on side by side from the interconnecting piece of adjacent PE band；
E), the second pinch roller rolls the profile with PE layers, makes the profile with PE layers and matrix tight weld.
8. PP cross-rib according to claim 7 enhances PE helical corrugation pipe production method, it is characterised in that: step a) tool
Body includes: that the PE band of extrusion is spirally wound on the molding roller bearing of continuous rolling by PE band extruder side by side, and with first
The clinch compression of the neighboring edge of adjacent PE band is fused into matrix by pinch roller.
9. PP cross-rib according to claim 7 enhances PE helical bellows generation method, it is characterised in that: step d) tool
Body includes: that the profile with PE layers that will be squeezed out out of profile die is spirally wound on side by side from the clinch of adjacent PE band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951429.7A CN109027445A (en) | 2018-08-21 | 2018-08-21 | PP cross-rib enhances PE helical bellows, profile and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951429.7A CN109027445A (en) | 2018-08-21 | 2018-08-21 | PP cross-rib enhances PE helical bellows, profile and production method |
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| CN109027445A true CN109027445A (en) | 2018-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810951429.7A Pending CN109027445A (en) | 2018-08-21 | 2018-08-21 | PP cross-rib enhances PE helical bellows, profile and production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107743A (en) * | 2019-06-03 | 2019-08-09 | 萍乡市大地新材料科技有限公司 | Hot winding screw bellows and its manufacturing method |
Citations (7)
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|---|---|---|---|---|
| CN1054559A (en) * | 1991-03-21 | 1991-09-18 | 沈阳市***区塑料机械研究所 | The manufacture method of plastic spiral pipe and equipment |
| CN101907207A (en) * | 2010-07-06 | 2010-12-08 | 戴爱清 | Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof |
| CN202674586U (en) * | 2012-06-15 | 2013-01-16 | 广东永高塑业发展有限公司 | Enhancement-type helical bellow with inner rib tubular product |
| CN104329519A (en) * | 2014-10-20 | 2015-02-04 | 戴爱清 | Externally corrugated plastic tube structure wall pipe and production method thereof |
| CN104390070A (en) * | 2014-11-04 | 2015-03-04 | 张娟 | Thermoformed continuously wound composite material reinforced structure-wall pipe, and manufacturing equipment and manufacturing method thereof |
| CN204554102U (en) * | 2015-03-02 | 2015-08-12 | 姚家红 | HDPE-PP composite winding reinforced pipe |
| CN208982813U (en) * | 2018-08-21 | 2019-06-14 | 广东统塑管业有限公司 | PP cross-rib enhances PE helical bellows and profile |
-
2018
- 2018-08-21 CN CN201810951429.7A patent/CN109027445A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054559A (en) * | 1991-03-21 | 1991-09-18 | 沈阳市***区塑料机械研究所 | The manufacture method of plastic spiral pipe and equipment |
| CN101907207A (en) * | 2010-07-06 | 2010-12-08 | 戴爱清 | Internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacturing method thereof |
| CN202674586U (en) * | 2012-06-15 | 2013-01-16 | 广东永高塑业发展有限公司 | Enhancement-type helical bellow with inner rib tubular product |
| CN104329519A (en) * | 2014-10-20 | 2015-02-04 | 戴爱清 | Externally corrugated plastic tube structure wall pipe and production method thereof |
| CN104390070A (en) * | 2014-11-04 | 2015-03-04 | 张娟 | Thermoformed continuously wound composite material reinforced structure-wall pipe, and manufacturing equipment and manufacturing method thereof |
| CN204554102U (en) * | 2015-03-02 | 2015-08-12 | 姚家红 | HDPE-PP composite winding reinforced pipe |
| CN208982813U (en) * | 2018-08-21 | 2019-06-14 | 广东统塑管业有限公司 | PP cross-rib enhances PE helical bellows and profile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107743A (en) * | 2019-06-03 | 2019-08-09 | 萍乡市大地新材料科技有限公司 | Hot winding screw bellows and its manufacturing method |
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