CN207549396U - A kind of PE double-wall corrugated pipes and process equipment - Google Patents
A kind of PE double-wall corrugated pipes and process equipment Download PDFInfo
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- CN207549396U CN207549396U CN201721658500.XU CN201721658500U CN207549396U CN 207549396 U CN207549396 U CN 207549396U CN 201721658500 U CN201721658500 U CN 201721658500U CN 207549396 U CN207549396 U CN 207549396U
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- corrugated pipes
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Abstract
The utility model is related to a kind of PE double-wall corrugated pipes and its process equipments.A kind of PE double-wall corrugated pipes, including ripple tube body, the outer exterior wall of ripple tube body is equipped with flexibility enhancing layer at the mold-closing seam, and the flexibility enhancing layer is embedded in the outer wall of ripple tube body, is integrally formed with the outer wall of ripple tube body.A kind of process equipment for being used to produce PE double-wall corrugated pipes described in the utility model, including plastic extruder, forming module, further include flexibility enhancing layer extruder, flexibility enhancing layer mold, the flexibility enhancing layer mold includes the sprue that one end is connect with flexibility enhancing layer outlet of extruder, the sprue other end is connected with one end of two runners, and the discharge port of two runners is respectively arranged at the outer wall mouth mold horizontal position both sides of bellows.The PE double-wall corrugated pipes of the utility model have very high fracture strength and elongation at break, improve the ring flex capability of outer pipe wall at the mold-closing seam.And when tubing generates shrink trace at the mold-closing seam, flexibility enhancing layer also functions to covering effect, improves the appearance of product.
Description
Technical field
The utility model is related to tubular object extruding field more particularly to a kind of PE double-wall corrugated pipes and its process equipment.
Background technology
PE double-wall corrugated pipes are a kind of using polyethylene as raw material, are process by squeezing out with special moulding process,
Inner wall smooth, outer wall are a kind of plastic construction wall tube material for closing ripple type.
Referring to Fig. 1, Fig. 2, the manufacturing of existing PE double-wall corrugated pipes is to be plasticized to squeeze out pipe by plastic extruder,
Again via the forming module of one group of loopy moving, it is shaped to double-wall corrugated pipe.PE corrugated pipes are by upper and lower module when being molded
A circular mold cavity is molded into, pipe inflation is molding.
Referring to Fig. 3, Fig. 4, position is stitched in the molding of upper and lower module, easily forms stress concentration, after tube forming cooling,
The molding of outer pipe wall stitches 33 positions and will appear more apparent contraction trace, influences product appearance, and in the position for shrinking trace, pipe
Pipe thickness at material wave crest can be slightly below tubing other parts.
Referring to Fig. 5, Fig. 6, due to being to be combined into a circular band in shaping position by two semicircle modules during processing
There is the cavity of circumferential ripple, to reach tube forming requirement.For two semicircle modules, due to the influence of machining accuracy, with
And the factors such as abrasion for locating module Relatively orientation pin, after upper and lower mould agllutination can be caused to close, can not always it form
One regular circle, i.e., have certain dislocation between module, is finally reflected on molding tubing, will be in outer pipe wall
, not only there is contraction trace in 33 positions of molding seam, but also there is also the irregular shape mutually staggered.
Referring to Figure 12, Figure 13, irregular shape caused by molding the contraction trace of seam position due to shaping pipe and misplace,
Tubing appearance is not only influenced, to the ring flex capability of tubing, will also result in adverse effect.Tubing carry out ring flexibility detection when,
Tubing is molded into seam position and is placed in horizontal direction, detects ring flexibility index, the ring flexibility for molding seam position is inferior to other of tubing
Position.
As described above, existing PE double-wall corrugated pipes, due to former, technique, can cause tubing molding
Position is stitched, there are performance difference, appearance and ring flexibility index to tubing adversely affect.
Utility model content
In view of the above-mentioned problems, the utility model aim is to provide a kind of PE double-wall corrugated pipes, the molding seam position of bellows
Put smooth, and ring flex capability is good at the mold-closing seam, to solve the problems of the prior art；The utility model also provides a kind of system
Make the process equipment of the PE double-wall corrugated pipes.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of PE double-wall corrugated pipes, including ripple tube body, the outer exterior wall of ripple tube body is equipped with flexibility at the mold-closing seam
Enhancement layer, the flexibility enhancing layer are embedded in the outer wall of ripple tube body, are integrally formed with the outer wall of ripple tube body.
A kind of preferred embodiment of the utility model, the flexibility enhancing layer is on the bellows body outer wall longitudinal cross-section
In crescent, the flexibility enhancing layer die slot that is involutory is symmetrical arranged.
Another preferred embodiment of the utility model, the width of the flexibility enhancing layer is 5-25mm.
Another preferred embodiment of the utility model, the thickness of the flexibility enhancing layer is bellows body outer wall wall thickness
10%-30%.
A kind of process equipment for being used to produce PE double-wall corrugated pipes described in the utility model, including plastic extruder, molding
Module, further includes flexibility enhancing layer extruder, flexibility enhancing layer mold, and the flexibility enhancing layer mold includes one end and increases with flexible
The sprue of strong layer outlet of extruder connection, the sprue other end are connected with one end of two runners, two runners
Discharge port be respectively arranged at the outer wall mouth mold horizontal position both sides of bellows.
Another preferred embodiment of the utility model, the discharge port of described two runners is in crescent.
Another preferred embodiment of the utility model, upright position and the outer wall mouth mold of described two runner discharge ports go out
In same section, the central horizontal position of described two runner discharge ports is aligned mouth with the spue line of forming module.
The PE double-wall corrugated pipes of the utility model increase flexibility enhancing layer in the molding seam position of bellows outer exterior wall,
Flexibility enhancing layer is integrated with outer wall bonding, and on the one hand increased flexibility enhancing layer increases the position wall thickness, and intensity improves；Separately
On the one hand, under external force, when tubing deforms, stretch ratio the best part is outermost outer pipe wall horizontal position
Side, and this part is made of flexibility enhancing layer, flexibility enhancing layer raw material selects PE100 special material for tube, wherein addition is used for
Improve the modified material EVA resin of material flexibility and tensile property, thus with very high fracture strength and extension at break
Rate improves the ring flex capability of outer pipe wall at the mold-closing seam.And when tubing generates shrink trace at the mold-closing seam, flexibility enhancing layer
Play the role of covering, improve the appearance of product.
Description of the drawings
Fig. 1 is existing PE double-wall corrugated pipes process equipment schematic diagram；
Fig. 2 is a partial enlarged view of Figure 1；
Fig. 3 shrinks trace schematic cross-section at the mold-closing seam for existing PE double-wall corrugated pipes；
Fig. 4 is sectional view along A-A in Fig. 3；
Fig. 5 misplaces schematic cross-section at the mold-closing seam for existing PE double-wall corrugated pipes；
Fig. 6 is sectional view along A-A in Fig. 5；
Fig. 7 is the PE double-wall corrugated pipe schematic diagrames of the utility model；
Fig. 8 is sectional view along A-A in Fig. 7；
Fig. 9 is the PE double-wall corrugated pipe process equipment schematic diagrames of the utility model；
Figure 10 is Fig. 9 partial enlarged views；
Figure 11 is sectional view along A-A in Figure 10；
Figure 12 detects front view for the double-wall corrugated pipe ring flexibilities of PE；
Figure 13 detects left view for the double-wall corrugated pipe ring flexibilities of PE.
Specific embodiment
It is further with reference to specific embodiment in order to be apparent to the technological means of the utility model and realization method
Illustrate the utility model.
Referring to Fig. 1, Fig. 2, the molding of PE double-wall corrugated pipes is mainly completed by corrugated pipe forming machine, and basic structure is main
The forming module 41 being recycled on mobile track and plastic extruder 40 are mounted on including one group, to realize the molding of tubing.
Its operation principle and molding mode are known to industry technology personnel, and no further details to be given herein.
Referring to Fig. 9, Figure 10, Figure 11, the PE double-wall corrugated pipe process equipments of the utility model add in former PE double-wall corrugated pipes
On the basis of construction equipment, it is additionally provided with flexibility enhancing layer extruder 10 and flexibility enhancing layer mold, the flexibility enhancing layer mold packet
Include sprue 21 and divide right and left, two runners 22 that one end is connected with 21 one end of sprue, 21 other end of sprue with
The discharge port connection of flexibility enhancing layer extruder 10, the discharge port 221 of two runners 22 are separately positioned on the outer wall of bellows
At mouth mold 401, positioned at the both sides of 401 outside horizontal position of outer wall mouth mold, it is tightly attached to outer wall mouth mold 401.
In the utility model, the discharge port 221 of runner 22 is approximate crescent, the upright position of discharge port 221 and wave
Line pipe outer wall mouth mold 401 is exported in same section, center line and 41 spue line pair of forming module of 221 horizontal position of discharge port
Together, i.e., discharge port 221 is symmetrical above and below relative to 41 spue line of forming module.
The PE double-wall corrugated pipe process equipments of the utility model are squeezed out when the external wall material of bellows is plasticized through plastic extruder
During outer wall mouth mold, for the flexibility enhancing layer extruder 10 of extrusion molding flexibility enhancing layer, the flexibility in extruder will be added to
It is squeezed out after enhancement layer material plasticizing, two runners 22 divided right and left is diverted to via sprue 21, then through two runners
Discharge port 221 is extruded into oblate band-like fusant, since runner discharge port and ripple pipe outer wall mouth mold are exported in Vertical Square
To positioned at same section, so after the band-like fusant squeezes out, just it is bonded as immediately with bellows external wall material in molten state whole
Body forms the pipe of shape as shown in Figure 11, which it is new to be formed as this practicality under the action of air pressure and vacuum suction
The PE ripple pipe outer walls of type.
Referring to Fig. 7, Fig. 8, the PE double-wall corrugated pipes of the bellows process equipment production of the utility model, in ripple tube body
The molding in 30 outer wall, 31 outside stitches 33 positions and forms flexibility enhancing layer 32, and flexibility enhancing layer 32 is embedded in the outer wall of PE double-wall corrugated pipes
In 31, it is integrally formed with the outer wall of the double-wall corrugated tube bodies of PE during processing.
In the utility model, flexibility enhancing layer 32 is in crescent on the longitudinal cross-section of 30 outer wall 31 of ripple tube body, soft
Property enhancement layer 32 die slot 33 that is involutory is symmetrical above and below.
Referring to Fig. 7, width of the flexibility enhancing layer 32 on the double-wall corrugated tube bodies of PE is generally 5-25mm, with specific reference to pipe
Material diameter is chosen, and tubule gets the small value, and big pipe takes large values, and should ensure that be completely covered by tubing shrinks trace at the mold-closing seam.
Referring to Fig. 8, the thickness of flexibility enhancing layer 32 is according to outer pipe wall wall thickness value, the double-wall corrugated pipe outer walls of generally PE
The 10%-30% of wall thickness, wall thickness has been compared with other positions thickness after increasing flexibility enhancing layer, at the molding of tubing seam outer wall wave crest
Increase.
The flexibility enhancing layer of the utility model, material prescription, by weight percentage for：
PE100 tubing raw materials：80-85%
EVA resin：10-15%
Color masterbatch：3-5%
Wherein, the PE100 tubing raw material is this colorant, and the EVA resin is ethylene-vinyl acetate copolymer, wherein
VA by weight percentage (vinyl acetate) content is 20%-28%, and the color masterbatch is PE color masterbatches, is contained in PE color masterbatches suitable
The pigment and titanium dioxide for coloring of amount, the titanium dioxide are rutile-type.
Embodiment 1：
The tubing of production is DN/ID200mm specifications, and the flexibility enhancing layer is located at tubing molding seam both sides, symmetrical,
The width of the flexibility enhancing layer be 5-6mm, thickness 0.1-0.2mm, the flexible reinforced layer material by weight percentage, formula
It is as follows：
PE100 tubing raw materials：85%
EVA resin：10%
Color masterbatch：5%
Embodiment 2：
The tubing of production is DN/ID500mm specifications, and the flexibility enhancing layer is located at tubing molding seam both sides, symmetrical,
The width of the flexibility enhancing layer is 10-12mm, thickness 0.4-0.5mm, and the flexible reinforced layer material by weight percentage, matches
Side is as follows：
PE100 tubing raw materials：85%
EVA resin：12%
Color masterbatch：3%
Embodiment 3：
The tubing of production is DN/ID1200mm specifications, and the flexibility enhancing layer is located at tubing molding seam both sides, symmetrical to divide
Cloth, the width of the flexibility enhancing layer are 20-25mm, thickness 0.8-1.0mm, flexible reinforced layer material percentage by weight
Than formula is as follows：
PE100 tubing raw materials：80%
EVA resin：15%
Color masterbatch：5%
Referring to Figure 12, Figure 13, ring flexibility detection, the inspection of each embodiment are carried out to the bellows tubing of the utility model production
Survey method and testing result are as follows：
The advantages of main feature, working method and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.
Claims (7)
1. a kind of PE double-wall corrugated pipes, it is characterised in that：Including ripple tube body (30), the outer wall (31) of ripple tube body (30)
Flexibility enhancing layer (32), the outer wall of the embedded ripple tube body (30) of the flexibility enhancing layer (32) are equipped at outside molding seam (33)
(31) it in, is integrally formed with the outer wall (31) of ripple tube body.
2. PE double-wall corrugated pipes according to claim 1, it is characterised in that：The flexibility enhancing layer (32) is in the bellows
In crescent on body outer wall (31) longitudinal cross-section, flexibility enhancing layer (32) die slot (33) that is involutory is symmetrical arranged.
3. PE double-wall corrugated pipes according to claim 1, it is characterised in that：The width of the flexibility enhancing layer (32) is 5-
25mm。
4. PE double-wall corrugated pipes according to claim 1, it is characterised in that：The thickness of the flexibility enhancing layer (32) is ripple
The 10%-30% of tube body outer wall (31) wall thickness.
5. a kind of process equipment for the PE double-wall corrugated pipes as described in claim any one of 1-4, including plastic extruder
(40), forming module (41), it is characterised in that：Flexibility enhancing layer extruder (10), flexibility enhancing layer mold are further included, it is described soft
Property enhancement layer mold include one end and the sprue (21) of flexibility enhancing layer extruder (10) outlet connection, the sprue (21)
The other end is connected with one end of two runners (22), and the discharge port (221) of two runners (22) is respectively arranged at bellows
Outer wall mouth mold (401) horizontal position both sides.
6. the process equipment of PE double-wall corrugated pipes according to claim 5, it is characterised in that：Described two runners (22)
Discharge port (221) is in crescent.
7. the process equipment of PE double-wall corrugated pipes according to claim 5, it is characterised in that：Described two runners (22) go out
The upright position of material mouth (221) is exported with outer wall mouth mold (401) in same section, described two runner (22) discharge ports
(221) central horizontal position is aligned with the spue line of forming module (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721658500.XU CN207549396U (en) | 2017-12-04 | 2017-12-04 | A kind of PE double-wall corrugated pipes and process equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721658500.XU CN207549396U (en) | 2017-12-04 | 2017-12-04 | A kind of PE double-wall corrugated pipes and process equipment |
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| Publication Number | Publication Date |
|---|---|
| CN207549396U true CN207549396U (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721658500.XU Active CN207549396U (en) | 2017-12-04 | 2017-12-04 | A kind of PE double-wall corrugated pipes and process equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825685A (en) * | 2017-12-04 | 2018-03-23 | 上海公元建材发展有限公司 | A kind of PE double-wall corrugated pipes and process equipment |
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2017
- 2017-12-04 CN CN201721658500.XU patent/CN207549396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825685A (en) * | 2017-12-04 | 2018-03-23 | 上海公元建材发展有限公司 | A kind of PE double-wall corrugated pipes and process equipment |
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| CP01 | Change in the name or title of a patent holder |
Address after: No. 999, Kangqiao East Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201319 Patentee after: Ad pipeline (Shanghai) Co.,Ltd. Address before: No. 999, Kangqiao East Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201319 Patentee before: Shanghai ERA Building Material Development Co.,Ltd. |