CN102689442B - Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe - Google Patents
Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe Download PDFInfo
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- CN102689442B CN102689442B CN201210198207.5A CN201210198207A CN102689442B CN 102689442 B CN102689442 B CN 102689442B CN 201210198207 A CN201210198207 A CN 201210198207A CN 102689442 B CN102689442 B CN 102689442B
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Abstract
The invention discloses a wound corrugated pipe with an enhanced inner fin by hollow roller forming and a production process of the wound corrugated pipe. The wound corrugated pipe with an enhanced inner fin by hollow roller forming consists of a wound hollow profiled bar and a collosol layer; and a recessed part is formed on the hollow profiled bar in a rolling manner. The production process comprises the following steps of: continuously extruding a hollow profiled bar through a first extruder so that the extruded hollow profiled bar is spirally wound on a roller of a forming machine; extruding the collosol through a second extruder; extruding the collosol into a clearance between the hollow profiled bars which are closed to each other and wound on the roller, and welding the hollow profiled bars together; and after the collosol welding, setting the roller on the forming machine and acting the roller on the outer surface of the hollow profiled bar so that the recessed part is formed on the outer surface of the hollow profiled bar. The production process is simple, and the wound corrugated pipe has high intensity and good compression-resistant capability.
Description
Technical field
The present invention relates to hollow roll forming internal-rib and strengthen winding bellows and manufacturing process, particularly buried winding bellows and manufacturing process.
Background technology
Traditional sewage disposal drainage pipeline adopts concrete duct, and this pipeline needs all to construct at the scene, and the inconvenience of constructing very, construction cost is high, and can not be recycled, and service life is also subject to certain restrictions.
Based on above-mentioned many defects, developed into afterwards to adopt steel pipe as blow-off line, but there is the defect that cost is high, service life is short.
In recent years, along with the wilderness demand to municipal pipeline, and be some technological deficiencies before overcoming, occurred many plastic conduits, as pvc pipe, straight-through water-supply-pipe, reinforced steel-band helical bellows, there is the winding bellows etc. of hollow fin.For pvc pipe and straight-through water-supply-pipe, it is generally used on the ground, does not need to bear too large radial pressure, therefore, less demanding to the ring stiffness of tubing.For reinforced steel-band bellows, because steel band is different with poly material, its thermal coefficient of expansion is also different, easily causes inner layer polyethylene and outer layer polyethylene cracking, easily causes quality problems; The winding bellows with hollow fin occurred in recent years, was disclose a kind of internal rib reinforcing outer ripple type plastic twining structured wall pipe and manufacture method thereof in the patent document of 2010.12.8 as be 201010218818.2 applyings date at application number being 2010.7.6 publication date.Internal rib reinforcing outer ripple type plastic twining structured wall pipe comprises face of cylinder tubing body and the reinforcement of spiral surrounding outside body, and reinforcement includes an enhancing internal-rib perpendicular to tube wall, and reinforcement is divided into two cavities arranged side by side by this internal-rib, its processing method is: first extrude by the first extruding machine the plastic shaped band that band two tubular lobes include cavity continuously, then this plastic shaped band is made to be spirally wound on side by side regularly on forming cylinder continuously, meanwhile, again by the second extruding machine, in spiral winding plastic shaped band adjacent side gap side by side, successively extrude the molten plastic of melting, again through being arranged at the pinch roller of corresponding position place, forming cylinder periphery band corresponding recesses version, two the protruding tubular cavities corresponding to both sides, adj acent plastic heterotypic strip welding gap roll, these two tubular lobes weldings form the evagination reinforcement of pipe outer wall, unnecessary PUR in welding gap is extruded under the rolling of pinch roller, form solid projection.
Reinforcement in aforementioned tubes is formed in extrusion molding, in extrusion molding process, may cause shaping after plastic shaped band in organize not all closely even, therefore, intensity and the anti-pressure ability of tubing itself can be affected.
Summary of the invention
The first object of the present invention is to provide a kind of hollow roll forming internal-rib and strengthens the manufacturing process being wound around bellows, and this manufacturing process is simple, and can strengthen the intensity and anti-pressure ability that are wound around bellows.
The second object of the present invention is to provide a kind of hollow roll forming internal-rib and strengthens winding bellows, and the intensity of this winding bellows is high, and anti-pressure ability is good.
For reaching above-mentioned first object, hollow roll forming internal-rib strengthens the manufacturing process being wound around bellows and comprises the steps: to extrude hollow form profile shapes by the first extruder continuous print, the hollow form profile shapes extruded is allowed to be spirally wound on the cylinder of forming machine, extrude colloidal sol by the second extruder simultaneously, colloidal sol is squeezed in the gap between the close to each other hollow form profile shapes be wrapped on cylinder and hollow form profile shapes is welded together; After colloidal sol welding, by arranging roller on forming machine, and roller being applied on the outer surface of hollow form profile shapes, making hollow form profile shapes outer surface form depressed part.
As further improvement, when colloidal sol is welded to after on hollow form profile shapes close to each other, on the outer surface with pinch roller effect colloidal sol after welding.
The beneficial effect of manufacturing process of the present invention is: described depressed part is by roll forming, in rolling process, institutional framework homogenising and tightization more of the profile shapes inside corresponding to depressed part, thus improve the intensity of hollow form profile shapes, improve the anti-pressure ability of hollow form profile shapes; In addition, due to the formation of depressed part, make depressed part both sides naturally form fin, thus improve the ring stiffness being wound around bellows; Meanwhile, relative to prior art, the present invention without the need for accurate requirement, simplifies expressing technique to the extrusion die of the first extruder.In the present invention, on the outer surface with pinch roller effect colloidal sol after welding, can improve the firm welding of hollow form profile shapes close to each other on the one hand, another aspect can be removed and be positioned at the unnecessary colloidal sol of hollow form profile shapes outer surface.
For reaching above-mentioned second object, hollow roll forming internal-rib strengthens the hollow form profile shapes that winding bellows comprises winding and the sol layer welded together by hollow form profile shapes close to each other, the hollow form profile shapes be wound around by sol layer welding forms tubular structure, be formed with the depressed part of roll forming at hollow form profile shapes outer surface, hollow form profile shapes side close to each other and sol layer form fin.
As further improvement, depressed part contacts with the bottom inside of hollow form profile shapes.
Hollow roll forming internal-rib of the present invention strengthens the beneficial effect being wound around bellows: described depressed part is by roll forming, in rolling process, institutional framework homogenising and tightization more of the profile shapes inside corresponding to depressed part, thus improve the intensity of hollow form profile shapes, improve the anti-pressure ability of hollow form profile shapes; In addition, due to the formation of depressed part, make depressed part both sides naturally form fin, thus improve the ring stiffness being wound around bellows.Because depressed part contacts with bottom inside face, like this, add the strong point of fin, further increase the ring stiffness being wound around bellows.
Accompanying drawing explanation
Fig. 1 is that hollow roll forming internal-rib of the present invention strengthens the stereogram being wound around bellows.
Fig. 2 is that hollow roll forming internal-rib of the present invention strengthens the front view being wound around bellows.
Fig. 3 is hollow roll forming internal-rib of the present invention enhancing winding bellows is sectional view.
Fig. 4 is hollow roll forming internal-rib of the present invention enhancing winding bellows is profile.
Fig. 5 is the state diagram of the present invention when contoured depressions portion.
Detailed description of the invention
Refer to Fig. 1 to Fig. 4, hollow roll forming internal-rib strengthens winding bellows and is made up of the hollow form profile shapes 1 be wound around and sol layer 2, sol layer 2 is formed between hollow form profile shapes close to each other, the depressed part 11 of roll forming is formed at hollow form profile shapes 1 outer surface, hollow form profile shapes side close to each other and sol layer form fin 3, depressed part 11 contacts with the bottom inside of hollow form profile shapes, to increase the strong point, improves the ring stiffness being wound around bellows.
The processing step manufacturing above-mentioned winding bellows is: as shown in Figure 5, hollow form profile shapes 1 is extruded by the first extruder continuous print, the hollow form profile shapes extruded is allowed to be spirally wound on the cylinder of forming machine, extrude colloidal sol by the second extruder simultaneously, colloidal sol is squeezed in the gap 4 between the close to each other hollow form profile shapes be wrapped on cylinder and hollow form profile shapes is welded together; When colloidal sol is welded to after on hollow form profile shapes close to each other, act on pinch roller 5 on the outer surface of colloidal sol after welding, make the welding between hollow form profile shapes more firm on the one hand, can unnecessary colloidal sol be removed on the other hand; After colloidal sol welding, by arranging roller 6 on forming machine, and roller 6 being applied on the outer surface of hollow form profile shapes, making hollow form profile shapes outer surface form depressed part 11.
In the present invention, described depressed part 11 is by roll forming, and in rolling process, the institutional framework of the profile shapes inside corresponding to depressed part 11 is homogenising and tightization more, thus improve the intensity of hollow form profile shapes, improve the anti-pressure ability of hollow form profile shapes; In addition, due to the formation of depressed part 11, make depressed part both sides naturally form fin, thus improve the ring stiffness being wound around bellows; Meanwhile, relative to prior art, the present invention without the need for accurate requirement, simplifies expressing technique to the extrusion die of the first extruder.In the present invention, on the outer surface with pinch roller effect colloidal sol after welding, can improve the firm welding of hollow form profile shapes close to each other on the one hand, another aspect can be removed and be positioned at the unnecessary colloidal sol of hollow form profile shapes outer surface.
Claims (4)
1. hollow roll forming internal-rib strengthens the manufacturing process being wound around bellows, it is characterized in that comprising the steps: to extrude hollow form profile shapes by the first extruder continuous print, the hollow form profile shapes extruded is allowed to be spirally wound on the cylinder of forming machine, extrude colloidal sol by the second extruder simultaneously, colloidal sol is squeezed in the gap between the close to each other hollow form profile shapes be wrapped on cylinder and hollow form profile shapes is welded together; After colloidal sol welding, by arranging roller on forming machine, and roller being applied on the outer surface of hollow form profile shapes, making hollow form profile shapes outer surface form depressed part.
2. hollow roll forming internal-rib according to claim 1 strengthens the manufacturing process being wound around bellows, it is characterized in that: when colloidal sol is welded to after on hollow form profile shapes close to each other, on the outer surface with pinch roller effect colloidal sol after welding.
3. the hollow roll forming internal-rib utilizing claim 1 or 2 manufacturing process to manufacture strengthens winding bellows, the hollow form profile shapes comprising winding and the sol layer that hollow form profile shapes close to each other is welded together, the hollow form profile shapes be wound around by sol layer welding forms tubular structure, be formed with the depressed part of roll forming at hollow form profile shapes outer surface, hollow form profile shapes side close to each other and sol layer form fin.
4. hollow roll forming internal-rib according to claim 3 strengthens winding bellows, it is characterized in that: depressed part contacts with the bottom inside of hollow form profile shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198207.5A CN102689442B (en) | 2012-06-15 | 2012-06-15 | Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210198207.5A CN102689442B (en) | 2012-06-15 | 2012-06-15 | Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe |
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| Publication Number | Publication Date |
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| CN102689442A CN102689442A (en) | 2012-09-26 |
| CN102689442B true CN102689442B (en) | 2015-03-18 |
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| CN201210198207.5A Active CN102689442B (en) | 2012-06-15 | 2012-06-15 | Wound corrugated pipe with enhanced inner fin by hollow roller forming and production process of wound corrugated pipe |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279379B (en) * | 2013-07-11 | 2016-12-28 | 戴爱清 | Continuous winding strengthens corrugated pipe and manufacture method thereof |
| CN103453240B (en) * | 2013-09-24 | 2015-07-15 | 黄楠伟 | Double-plastics finned wound corrugated pipe and method for manufacturing same |
| CN103883805A (en) * | 2014-03-24 | 2014-06-25 | 浙江天井塑业有限公司 | HDPE helical bellows and manufacturing method |
| CN106958697A (en) * | 2017-04-13 | 2017-07-18 | 广东永高塑业发展有限公司 | A kind of saddle-shape hollow wall winding flexible pipe and its manufacture method |
| CN107965622B (en) * | 2017-12-27 | 2023-10-24 | 福建新通源复合材料科技有限公司 | Multilayer butt-buckling connection continuous winding composite pipe |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102305316A (en) * | 2010-07-06 | 2012-01-04 | 戴爱清 | Internal rib-reinforced outer corrugated plastic wound structural wall pipe and manufacturing method thereof |
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Address after: 510800 No.8, Xixiu Road, Maxi village, Xiuquan street, Huadu District, Guangzhou City, Guangdong Province Patentee after: Ad pipeline (Guangdong) Co.,Ltd. Address before: 510800 East 1, Dongxiu Road, Xinhua Street, Huadu District, Guangzhou, Guangdong Patentee before: GUANGDONG YONGGAO PLASTIC INDUSTRY DEVELOPMENT Co.,Ltd. |