CN1411972A - Extrusion forming and diameter-setting equipment of steel-plastics composite pipe using perforated steel pipe as skeleton - Google Patents
Extrusion forming and diameter-setting equipment of steel-plastics composite pipe using perforated steel pipe as skeleton Download PDFInfo
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- CN1411972A CN1411972A CN 01134057 CN01134057A CN1411972A CN 1411972 A CN1411972 A CN 1411972A CN 01134057 CN01134057 CN 01134057 CN 01134057 A CN01134057 A CN 01134057A CN 1411972 A CN1411972 A CN 1411972A
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Abstract
The extruding-forming-size equipment of steel-plastics composite pipe using perforated stal pipe as skeleton is formed from internal sizing core die and external sizing sleeve, and it is characterized by that internal sizing core die is extended from extruding machine head, the external sizing sleeve and extruding machine head are separately arranged, and cover-mounted on the end portion of internal sizing coer die, the internal sizing core die is made into a hollow tubular structure, the inner cavity of the tubular core die is a cooling water circulating channel, and its end portion is equipped with a negative pressure cavity whose sid wall is equipped with an air hole.
Description
Technical field:
The present invention relates to the diameter-setting equipment in the extrusion molding.
Background technology:
With the perforation steel pipe be the steel-plastics composite pipe of skeleton because intensity height, good corrosion resistance, light weight, steel are moulded compound fully many advantages such as do not separate, more and more receive publicity.The production process of this type of tubing mainly comprises three parts, and promptly the moulding of steel pipe, steel pipe and plastics is compound, and the sizing moulding after compound.Wherein, the moulding of steel pipe is to make it become tubulose after the pressure roller of punched steel plate by reducing gradually, to be steel pipe after the welding.It is that steel pipe is passed through plastic extruder continuously that steel is moulded compound, utilizes the pressurization that rotatablely moves of screw rod, will plastify good molding materials continuously and extrude mold from the machine barrel of extruder.These two parts are ripe traditional handicraft.
Because the existence of head internal pressure, in a single day the parison in mouthful mould leaves a mouthful modular constraint, just die swelling can take place.Therefore, the diameter-setting equipment of one of above-mentioned three parts is most important for its moulding.But, in the prior art, the time regular meeting produce be: or owing between the lateral wall of the inwall of shaping pipe and core and not exclusively applying, cause steel to mould segregation phenomenon; , form bondingly between tubing parison and the core, and make pipe material inner wall coarse.Up to now, also do not have a kind of diameter-setting equipment can be suitable for this type of tubing production needs, produce qualified high-quality extrusion molding steel-plastics composite pipe.
Summary of the invention:
Technical problem to be solved by this invention is that providing a kind of is the composite metal plastic pipe extrusion molding diameter-setting equipment of skeleton with the perforation steel pipe, is used to make high-quality steel-plastics composite pipe, makes shaping pipe inner wall smooth, inside/outside diameter size precision height.
The technical scheme that technical solution problem of the present invention is adopted is:
The present invention is made of interior sizing core and outer calibration sleeve.
Design feature of the present invention is:
A, described interior sizing core extend from extruder head, and described outer calibration sleeve separates setting with extruder head; The end of sizing core in being set in;
B, described interior sizing core are hollow tubular structures, and the inner chamber of tubular core mold is the cooling water circulation canal; The end of tubular core mold is provided with negative pressure cavity, offers the air-flow through hole on the sidewall of negative pressure cavity;
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention passes through to adopt the hollow tubular core rod, and vacuum cavity is set in core rod, improves the inwall of shaping pipe and the applying degree between the mould heart lateral wall effectively.Thereby improved the smooth degree of shaping pipe inwall significantly, improved its internal diameter size precision.Also make shaping pipe more closely knit, even.
2, the present invention passes through to adopt the hollow tubular core rod, and the inner chamber of core rod is the cooling water circulation canal.Cool off implementing pressure by the cooling water that therefrom flows through attached to the outer pipe to be formed of core.Thereby avoided the bonding of material effectively, do not stopped up the negative-pressure air-flow through hole, thereby made the generation negative pressure become possibility, improved the smooth degree of shaping pipe madial wall at mandrel surface.Simultaneously, because enforcement is cold by force, shaping speed improves greatly.
3, the present invention China and foreign countries calibration sleeve separates setting with extruder head, moulds setting in the tubing parison that leaves mouthful mould carries out in interior sizing core fast, simultaneously by outer calibration sleeve, implements to mould setting outward, and it is simple and reasonable.
The drawing explanation:
Accompanying drawing is a structural representation of the present invention.
The specific embodiment:
Referring to accompanying drawing, present embodiment is made of interior sizing core 1 and outer calibration sleeve 2.Interior sizing core 1 extends from extruder head 3.Outer calibration sleeve 2 separates setting with extruder head 3; The end of sizing core 1 in outer calibration sleeve 2 is set in.
Shown in the figure, interior sizing core 1 is a hollow tubular structures.
The inner chamber of tubular core mold 1 has the cooling water circulation canal.In the present embodiment, the turnover mouth of pipe of cooling water all be positioned at core 1 to go into mould distolateral, in the cavity of core rod 1, pipe 7 in being provided with.Cooling water is introduced from interior pipe 7, draws along the madial wall of hollow core rod 1, carries out heat exchange when drawing, to implement to force cooling attached to the tubing on core 1 lateral wall.
The end of tubular core mold 1 is provided with negative pressure cavity 4, offers air-flow through hole 5 on the sidewall of negative pressure cavity 4.Air-flow through hole 5 is uniform on the circumference of negative pressure cavity 4 sidewalls.The tubing that is positioned at air-flow through hole 5 positions does not solidify as yet fully.Herein, the existence of negative pressure cavity 4 can make pipe material inner wall be close to the lateral wall depanning and the moulding of core in the core.According to this, can reach the purpose of smooth inner wall, accurate internal diameter size.
At the manufacturing of continuously shaped steel-plastics composite pipe, in the present embodiment, core 1 can run through extruder head 3, imports a side being positioned at the holed metal skeleton, is fixed on the frame outside the head 3 by core support 6.
In concrete the enforcement, adopt traditional handicraft, the holed metal skeleton is progressively to be welded after the moulding by the metallic plate of boring a hole, and core 1 should extend to the opening before the holed metal skeleton welds as yet, so that core 1 fixedly becomes possibility outside carrying out on frame with its fixed support 6.This fixed form is reliable and stable.
In the forming process, the holed metal skeleton is extruded from extruder head continuously with the plastics materials from the fusion of extruder, becomes the tubing parison.
The tubing parison obtains sizing rapidly in the internal diameter core, simultaneously further outer sizing and moulding in the calibration sleeve outside.
Claims (3)
1, be the composite metal plastic pipe extrusion molding diameter-setting equipment of skeleton with the perforation steel pipe, constitute, it is characterized in that by interior sizing core (1) and outer calibration sleeve (2):
Sizing core (1) extends from extruder head (3) in described, and described outer calibration sleeve (2) separates setting with extruder head (3); The end of sizing core (1) in being set in;
Sizing core (1) is a hollow tubular structures in described, and the inner chamber of tubular core mold (1) is the cooling water circulation canal; The end of tubular core mold (1) is provided with negative pressure cavity (4), offers air-flow through hole (5) on the sidewall of negative pressure cavity (4);
2, composite metal plastic pipe extrusion molding diameter-setting equipment according to claim 1 is characterized in that described air-flow through hole (5) is uniform on the circumference of negative pressure cavity sidewall.
3, composite metal plastic pipe extrusion molding diameter-setting equipment according to claim 1 is characterized in that described core (1) runs through extruder head (3), imports a side being positioned at the holed metal skeleton, is fixed on the frame outside the head by core support (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134057 CN1411972A (en) | 2001-10-16 | 2001-10-16 | Extrusion forming and diameter-setting equipment of steel-plastics composite pipe using perforated steel pipe as skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01134057 CN1411972A (en) | 2001-10-16 | 2001-10-16 | Extrusion forming and diameter-setting equipment of steel-plastics composite pipe using perforated steel pipe as skeleton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1411972A true CN1411972A (en) | 2003-04-23 |
Family
ID=4672193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01134057 Pending CN1411972A (en) | 2001-10-16 | 2001-10-16 | Extrusion forming and diameter-setting equipment of steel-plastics composite pipe using perforated steel pipe as skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1411972A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534762C (en) * | 2005-01-28 | 2009-09-02 | 俞晟 | Plastic bottle blank conveying mechanism |
| CN103568241A (en) * | 2012-08-10 | 2014-02-12 | 宁波康润机械科技有限公司 | Composite tube molding extrusion equipment and method |
| CN107244055A (en) * | 2017-07-21 | 2017-10-13 | 四川业峰塑业有限公司 | A kind of production system of spiral noise-reduction pipe |
| CN114714599A (en) * | 2022-03-31 | 2022-07-08 | 公元股份有限公司 | PE corrugated pipe cooling device |
-
2001
- 2001-10-16 CN CN 01134057 patent/CN1411972A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100534762C (en) * | 2005-01-28 | 2009-09-02 | 俞晟 | Plastic bottle blank conveying mechanism |
| CN103568241A (en) * | 2012-08-10 | 2014-02-12 | 宁波康润机械科技有限公司 | Composite tube molding extrusion equipment and method |
| CN107244055A (en) * | 2017-07-21 | 2017-10-13 | 四川业峰塑业有限公司 | A kind of production system of spiral noise-reduction pipe |
| CN114714599A (en) * | 2022-03-31 | 2022-07-08 | 公元股份有限公司 | PE corrugated pipe cooling device |
| CN114714599B (en) * | 2022-03-31 | 2024-04-16 | 公元股份有限公司 | PE corrugated pipe cooling device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |