CN102285111A - Steel (aluminium)-plastic composite pipe/pipe fitting end part cone-shaped sealing technology - Google Patents
Steel (aluminium)-plastic composite pipe/pipe fitting end part cone-shaped sealing technology Download PDFInfo
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- CN102285111A CN102285111A CN2010106092456A CN201010609245A CN102285111A CN 102285111 A CN102285111 A CN 102285111A CN 2010106092456 A CN2010106092456 A CN 2010106092456A CN 201010609245 A CN201010609245 A CN 201010609245A CN 102285111 A CN102285111 A CN 102285111A
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Abstract
The invention relates to steel (aluminium)-plastic composite pipe/pipe fitting end part sealing technology, which overcomes the defects that in the existing steel (aluminium)-plastic composite pipe cone-shaped sealing technology, the inside is sealed, but the outside is not sealed, the efficiency is low, the investment cost is high, and the energy consumption is high, and has the advantages that the structure is simple, and the implementation is easy. In order to solve the technical problems, the technical scheme adopted by the invention is that a steel (aluminium)-plastic composite pipe/pipe fitting end part is inserted into a cavity which is heated into a certain temperature in advance and is filled with a proper quantity of fusion plastic in advance, so that the cavity and the steel (aluminium)-plastic composite pipe/pipe fitting end part oppositely move, during the moving process, the fusion-state plastic which is placed in advance is extruded by the composite pipe/pipe fitting to move towards a material sealing baffle, forms pressure under the plugging of the material sealing baffle, and is cooled and formed to form cone-shaped sealing, and further, the complete sealing to a bared framework can be realized.
Description
Technical field
The present invention relates to steel (aluminium) plastic composite and pipe fitting end Sealing Technology.
Background technology
What steel (aluminium) plastic composite taper sealing tech adopted in the industry at present is the injection moulding mode.Its equipment generally comprises one to two injection machine, a die heater, a table oil pump, a cover mould bases and a mould.This technology is only isolated pipe end inwall and exposed steel skeleton, and promptly so-called " not sealing outer in the envelope " makes the medium of conveying infiltrate steel skeleton and then it is produced corrosion by outer wall, reduction of service life, stays potential safety hazard.In addition, not only equipment investment is big for present cone seal technology, and finishes that once seal need be for up to dozens of minutes to hour, and efficient is low, the bottleneck that energy consumption height, especially heavy caliber pipe are produced.
Summary of the invention
The present invention has overcome the defective that existing steel (aluminium) plastic composite taper sealing tech " does not seal outer " in the envelope, efficient is low and cost of investment is high, energy consumption is high, and is simple in structure, implements easily.
The technical solution adopted for the present invention to solve the technical problems is to be heated to uniform temperature steel (aluminium) plastic composite or pipe fitting end insertion and die cavity that put into a certain amount of molten plastic in advance, make die cavity and steel (aluminium) plastic composite or pipe fitting move toward one another, the plastics of the molten condition of putting in advance in the motion process move to envelope material baffle plate under the extruding of multiple tube or pipe fitting, sealing build-up pressure under the shutoff of expecting baffle plate at last, realize promptly behind the cooling forming that taper seals, and then realize sealing fully bare skeleton.
The invention has the beneficial effects as follows, a lot (existing mode of heating generally is that the water circulation is heated to the die cavity temperature height that novel die cavity temperature seals than existing injection moulding, temperature can only reach about 90 ℃), so the plastics of molten plastic and multiple tube can well fuse together; And owing to used a plurality of die cavities simultaneously, being equivalent to present mould seals in the form two steps of heating and cooling and carries out (equaling to change into the working method of serial parallel) simultaneously, and the efficient of heating and cooling also improves much than present mode, so can cut down the consumption of energy significantly and significantly improve efficient.Can save some unnecessary equipment and maintenances thereof in addition, overcome the technological deficiency of " not sealing outer in the envelope ", realize the sealing fully to bare skeleton, simple in structure, it is convenient to implement, the single easy manipulation that gets final product.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 middle part subassembly cutaway view.
Among the figure, 1. steel (aluminium) plastic composite, 2. multiple tube jig, 3. oil cylinder A, 4. oil cylinder B, 5. die cavity supports, 6. die cavity, 7. envelope material baffle plate, 8. baffle plate clasp.
The specific embodiment
As figure, multiple tube (1) is fixing by oil cylinder A (3) and jig (2); Die cavity supports (5) and is connected with oil cylinder B (4), and under the traction of oil cylinder B (4) can with the direction of multiple tube (1) coaxial line on move.Baffle plate clasp (8) is fixed on the envelope material baffle plate (7).The inside that is heated to uniform temperature is placed with in two die cavities (6) of molten plastic, after installing envelope material baffle plate (7), being positioned over die cavity supports on (5), start oil cylinder B (4) this moment to multiple tube (1) motion, sealed that material baffle plate (7) stops and stop and carrying out the pressurize of a period of time when filling up whole die cavity up to the plastics of fusion under the extruding of multiple tube (1).Oil cylinder B (4) retreats then, and die cavity (6) is cooled off.After cooling finishes, take off envelope material baffle plate (7) earlier, take off die cavity (6) then, so far finished a process that taper is sealed.Another die cavity this moment (6) heating and molten plastic finish, and repeat step just now, so can carry out continual cycling.
Specific embodiment: with the sealing of cone seal technology realization of the present invention to DN400 steel frame-plastic (PE) multiple tube end.Use a SJ-20 extruder, power of motor 2.2kw, barrel heating power 6kw, extrusion capacity 14kg/h.Oil cylinder piston diameter 100, stroke 300mm.As shown in FIG., with the heating collar preheating of the inwall of a die cavity, extruder work simultaneously with 10kw, 240 ℃～260 ℃ of extruded stock temperature. in the chamber, put into about 2kg molten plastic, die cavity heating 5 minutes (if heat with electromagnetism, the time can foreshorten to 1 minute), 180 ℃～240 ℃ of temperature.A finish die cavity having molten plastic in the chamber of preheating is positioned over die cavity and supports on (built-in heating collar), begin preheating another one die cavity simultaneously and put into molten plastic therein.Start oil cylinder A then,, start oil cylinder B then, allow multiple tube embed among the die cavity with the fixing multiple tube of jig.When molten plastic was full of whole die cavity, oil cylinder halted.Pressurize 1min, oil cylinder retreats, and the die cavity that multiple tube is housed carries out cooling processing 2min.Take off envelope material baffle plate and die cavity and promptly finish sealing operation one time.This moment, the preheating of another one die cavity finished, and the repetition above-mentioned steps can be carried out sealing operation next time.Because be that circulation is carried out, the process time of single workpiece is depended on the longest operation consuming time, once seals required time about 10～12 minutes so finish, and is to seal 4～5 times of efficient at present, about 7 degree of power consumption (the injection moulding mode was sealed about one hour consuming time, about 50～60 degree of power consumption).Improve efficient greatly and saved energy consumption.
Claims (4)
1. steel (aluminium) plastic composite and pipe fitting end cone seal technology mainly are made up of two die cavities and envelope material baffle plate.It is characterized in that: steel (aluminium) plastic composite or pipe fitting end insert and are heated to uniform temperature and die cavity that put into a certain amount of molten plastic in advance, make die cavity and steel (aluminium) plastic composite or pipe fitting move toward one another, the plastics of the molten condition of putting in advance in the motion process move to envelope material baffle plate under the extruding of multiple tube or pipe fitting, sealing build-up pressure under the shutoff of expecting baffle plate at last, realize promptly behind the cooling forming that taper seals, and then realize sealing fully bare skeleton.
2. a kind of steel (aluminium) plastic composite according to claim 1 and pipe fitting end cone seal technology, it is characterized in that: the contact-making surface of die cavity and multiple tube inwall has certain taper, big end size is larger than the internal diameter of multiple tube, prevents the effect that molten plastic outwards overflows to reach under certain pressure.
3. a kind of steel (aluminium) plastic composite according to claim 1 and pipe fitting end cone seal technology is characterized in that: the internal diameter outline of envelope material baffle plate less than or approximate the external diameter of multiple tube, under certain pressure, prevent the effect that molten plastic overflows to reach.
4. a kind of steel (aluminium) plastic composite according to claim 1 and pipe fitting end cone seal technology is characterized in that: two die cavities of needs, and one of them is in extrusion modling and cooling, and another is in the heating period.Two die cavities alternately use continuously, can significantly raise the efficiency, and save energy consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106092456A CN102285111A (en) | 2010-12-28 | 2010-12-28 | Steel (aluminium)-plastic composite pipe/pipe fitting end part cone-shaped sealing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106092456A CN102285111A (en) | 2010-12-28 | 2010-12-28 | Steel (aluminium)-plastic composite pipe/pipe fitting end part cone-shaped sealing technology |
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| CN102285111A true CN102285111A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106092456A Pending CN102285111A (en) | 2010-12-28 | 2010-12-28 | Steel (aluminium)-plastic composite pipe/pipe fitting end part cone-shaped sealing technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346063A (en) * | 2015-12-15 | 2016-02-24 | 安源管道实业有限公司 | Heating and cooling integrated tube end sealing mechanism for steel-plastic composite tube |
| CN107471531A (en) * | 2017-08-30 | 2017-12-15 | 浙江伟星新型建材股份有限公司 | Multiple tube injection sealing method and apparatus |
| CN110901034A (en) * | 2019-10-29 | 2020-03-24 | 谭连平 | Production method of polyethylene pressure injection sealing of water supply and drainage pipe port |
| CN112238597A (en) * | 2020-09-25 | 2021-01-19 | 安源管道实业股份有限公司 | Steel-plastic composite pipe end sealing device without material overflow |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148634A (en) * | 1983-02-15 | 1984-08-25 | Daihatsu Motor Co Ltd | Injection molding method of resin |
| CN1267802A (en) * | 1999-03-23 | 2000-09-27 | 阎金波 | Composite steel-plastic pipe fitting |
| CN201205756Y (en) * | 2008-03-06 | 2009-03-11 | 贾明印 | End total sealing device for steel skeleton plastic composite pipe |
| CN201308013Y (en) * | 2008-12-04 | 2009-09-16 | 黑龙江省畜牧机械化研究所 | Mini-type fixed dual-drum hydraulic bander |
-
2010
- 2010-12-28 CN CN2010106092456A patent/CN102285111A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59148634A (en) * | 1983-02-15 | 1984-08-25 | Daihatsu Motor Co Ltd | Injection molding method of resin |
| CN1267802A (en) * | 1999-03-23 | 2000-09-27 | 阎金波 | Composite steel-plastic pipe fitting |
| CN201205756Y (en) * | 2008-03-06 | 2009-03-11 | 贾明印 | End total sealing device for steel skeleton plastic composite pipe |
| CN201308013Y (en) * | 2008-12-04 | 2009-09-16 | 黑龙江省畜牧机械化研究所 | Mini-type fixed dual-drum hydraulic bander |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346063A (en) * | 2015-12-15 | 2016-02-24 | 安源管道实业有限公司 | Heating and cooling integrated tube end sealing mechanism for steel-plastic composite tube |
| CN107471531A (en) * | 2017-08-30 | 2017-12-15 | 浙江伟星新型建材股份有限公司 | Multiple tube injection sealing method and apparatus |
| CN110901034A (en) * | 2019-10-29 | 2020-03-24 | 谭连平 | Production method of polyethylene pressure injection sealing of water supply and drainage pipe port |
| CN112238597A (en) * | 2020-09-25 | 2021-01-19 | 安源管道实业股份有限公司 | Steel-plastic composite pipe end sealing device without material overflow |
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Application publication date: 20111221 |