CN105423043A - Electric melting type integral injection molding bent steel plastic head with base - Google Patents
Electric melting type integral injection molding bent steel plastic head with base Download PDFInfo
- Publication number
- CN105423043A CN105423043A CN201510986108.7A CN201510986108A CN105423043A CN 105423043 A CN105423043 A CN 105423043A CN 201510986108 A CN201510986108 A CN 201510986108A CN 105423043 A CN105423043 A CN 105423043A
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- China
- Prior art keywords
- electric
- fusion welding
- injection molding
- pipe
- electric fusion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16L43/00—Bends; Siphons
- F16L43/008—Bends; Siphons made from plastic material
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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
- F16L43/00—Bends; Siphons
- F16L43/02—Bends; Siphons adapted to make use of special securing means
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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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention relates to the field of polyethylene (PE) pipeline transition connection, in particular to an electric melting type integral injection molding bent steel plastic head with a base. According to the electric melting type integral injection molding bent steel plastic head with the base, a hot melt pipe and an electric melt weld pipe are made to form a 90-degree angle for one-time injection molding; an electric heating wire is arranged inside a port of the electric melt weld pipe; the base is arranged under the electric melt weld pipe at the 90-degree angle. The electric melting type integral injection molding bent steel plastic head is subjected to integral injection molding through an injection molding machine; the end of the horizontally arranged hot melt PE pipe and the electric melt weld end of the vertically arranged electric melt weld pipe form a 90-degree angle; as the integral injection molding is performed through an injection mold, and reinforcing ribs are arranged so that accurate and stable 90-degree angle can be guaranteed.
Description
Technical field
The present invention relates to PE pipeline transition connection area, specifically head moulded by a kind of electric-melting curved steel of integral molded plastic of usheing to seat.
Background technique
At present, known PE pipe joint is distinguished by welding mode, be divided into hot melt PE pipe fitting and electric smelting PE pipe fitting, hot melt PE pipe fitting not strip resistance silk, external diameter equals the internal diameter of electric smelting PE pipe fitting, in the joint socket of electric smelting PE pipe fitting, PE tubing or hot melt PE pipe fitting is inserted during use, the copper pin using electro-fusion welding machine to stretch out on electric smelting PE pipe fitting applies certain voltage, the electric heating wire connected between two copper pin fuses together after making the melting sources of electric smelting PE pipe fitting inner wall and PE tubing or hot melt PE pipe fitting junction point, because PE pipeline is generally embedded in underground, when needs elevate above the soil, the first scheme is, directly protrude upward on main pipeline, there is stress and concentrate on soldering point place, easy generation is leaked gas or is concentrated due to stress after welding and ftracture, thus cause accident to occur, first scheme is, first horizontal transition, after leaving main pipeline one segment distance, recycling 90 degree of electric smelting elbows connect, protrude upward ground, although this kind of scheme eliminates the risk of main pipeline soldering point damage, but there is the possibility of stress rupture equally in 90 degree of electric smelting elbows, the third scheme utilizes the method for cold moudling that PE tubing is curved 90 degree, protrude upward ground again, this scheme eliminates electric fusion welding place stress rupture, but because PE tubing quality is softer, easily form ellipse in bending part, conveying not smooth phenomenon is caused when degree is serious, in addition owing to being cold moudling, after the longer time, due to the resilience of PE pipe bend angle, stress can extend to main pipeline, thus have influence on the Security of main pipeline further.
Summary of the invention
Technical problem to be solved by this invention is: how to overcome the stress rupture that PE pipeline construction in the past exists, and especially the risk forwarding stress generation work progress on the ground from underground to of conversion pipe fitting moulded by steel.
The technical solution adopted in the present invention is: head moulded by a kind of electric-melting curved steel of integral molded plastic of usheing to seat, and tempreature bulb and electric fusion welding take over into an angle of 90 degrees once injection moulding, and there is electric heating wire electric fusion welding tube opening inside, under the adapter of an angle of 90 degrees place electric fusion welding, have base.Base horizontal positioned during use, tempreature bulb port and main pipeline export electric melting sleeve and are connected, and electric fusion welding pipe end inserts and moulds conversion pipe fitting with the straight tube steel of caliber, and after electric smelting connects, the steel pipe end that conversion pipe fitting moulded by steel elevates above the soil use.
As a kind of optimal way: have stiffening rib between an angle of 90 degrees place tempreature bulb and electric fusion welding are taken over, stiffening rib, tempreature bulb, electric fusion welding adapter once injection moulding.Effectively evaded the welding in corner, eliminated the risk produced with 90 degree of electric smelting elbow weldings, angle accurately and can not resilience, not only guarantees that angle is 90 degree, and can more effective payment stress rupture.
As a kind of optimal way: the soldering copper pin power connection of electric fusion welding tube opening electric heating wire is axial arranged, and cover design for falling into, after electric fusion welding completes, outer surface does not have outstanding, the entirety being more conducive to the pipeline of outer surface is anticorrosion, and under guaranteeing that copper pin can be positioned at the covering of surface anticorrosion.
As a kind of optimal way: electric fusion welding tube opening has peep hole, has plastic column in peep hole.Electrothermal wire heating, by the plastic molting of periphery, after plastic molting, the plastic column in peep hole has melted heat due to inside and has been extruded, illustrate that inner fusing degree meets the requirements thus, the outer surface that the insertion portion changing pipe fitting moulded by electric fusion welding tube opening internal surface and steel is fused together.
Make the electric-melting curved steel of integral molded plastic of usheing to seat and mould head: make the injection machine tempreature bulb of an angle of 90 degrees and electric fusion welding pipe mold integrally core rod, one core rod an angle of 90 degrees place reserves base interface, two screw thread silk groove is milled out uniformly at injection machine electric fusion welding pipe mold core rod port outer surface, utilize reeling machine by electric heating wire uniform winding in two screw thread silk groove, the two ends of electric heating wire are drawn with copper post, two sections are slit into along angle center line at an angle of 90 degrees place, form electric fusion welding pipe mold core rod and tempreature bulb mould core, electric fusion welding pipe mold core rod and tempreature bulb mould core are put into injection machine mould once injection moulding, after completing, electric fusion welding pipe mold core rod and tempreature bulb mould core are drawn out of, copper post and electric heating wire are left on the electric-melting curved steel of integral molded plastic of usheing to seat and mould the inside of head.
Conversion moulded by steel, and pipe fitting is current two kinds, a kind of is straight, a kind of be 90 degree curved, two ends are steel pipe and PE pipe respectively, this steel mould connecting head be also 90 degree curved, one end belongs to tempreature bulb, another end band copper pin be electric fusion welding adapter, the present invention is that the PE end moulded by straight steel inserts in electric fusion welding tube opening of the present invention, the PE material of material of the same race entangles mutually, then utilize the resistance wire of this connecting head by the use that combines together after surface melting, the present invention is that PE expects an injection molded entirely, just be furnished with electric heating wire in electric fusion welding tube opening inside, so that the end of moulding moulded with other steel fuses.Insertion steel is moulded PE and is held about 3-4cm, wall thickness is about 3mm, with electric heating wire coincidence part branch melted by heat, but only can melt at outer surface, depth of fusion is about 1-2mm, connecting head also just melts at electric heating wire periphery simultaneously, depth of fusion is about 1-2mm, both same materials, so can be heat fused to together, but just partial melting, steel pipe only in joint with to mould pipe overlapping.
One end of the present invention is tempreature bulb, the other end is electric fusion welding adapter, the two call is different, main differentiation is: tempreature bulb is the external diameter of heating and melting pipe, and electric fusion welding adapter refers to the internal diameter of heating and melting, because the two will insert cooperation, this connecting head tempreature bulb be with the use being connected other pipeline, electric fusion welding adapter is then mould head end for what connect steel plastic pipe.
The present invention is in order to an angle of 90 degrees that realizes hot melt PE pipe end and electric fusion welding end and become to fix and stable not resilience, install to realize simplifying, immediately below electric fusion welding end, horizontal base is installed in configuration, specific embodiment is: integral molded plastic shaping base, axis parallel is held with bottom surface and horizontal hot melt PE, the all anhydrous bit function of calming down of the electric smelting existed in the market or hot melt pipe fitting, in use due to manual operation, produce angle deviating phenomenon very easily herein, treat the meeting of elevating above the soil of steel plastic pipe, angle deviating will be larger, and the configuration of this horizontal mounting base, need not be artificial whether correct angle again when welding vertical, welding quality is ensure that while simplifying the operation.
The present invention is in order to ensure that product is up to standard in endoporus circularity, soldering point is concentrated place away from flexural stress, exploitation special injection molding mould, specific embodiment is: according to relevant parameter requirement of the present invention, exploitation specialized mould, integral injection moulding, mold cavity and core rod is utilized to carry out interior outside fix, PE raw material is again at high temperature melting state retrofilling mold cavity, product itself can not produce stress, because be global formation in 90 degree of bending parts, avoid the risk that use 90 degree of electric smelting elbow weldering welding produce.
Do not come off in order to electric heating wire is implanted interiors of products, specific embodiments has two kinds, and one is on core rod, be first wound around electric heating wire, and electric heating wire is divided into again exposed silk and plastic silk; Not groove milling silk on another kind of core rod, just first injects semi-finished product on injection machine, and electric heating wire secondary rotating is implanted the internal surface of electric fusion welding end by rear routing machine, and this kind of mode is called rear cloth silk technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view schematic diagram of Fig. 1;
Wherein, 1. tempreature bulb; 2. electric fusion welding adapter; 3. copper post; 4. electric heating wire; 5. stiffening rib; 6. base; 7. peep hole.
Embodiment
As shown in Figure 1, for tempreature bulb 1 because it is level installation, therefore use electric smelting sleeve connection, one end connects external tubing or pipe fitting, insert this product tempreature bulb 1 at the other end of electric melting sleeve, utilize electro-fusion welding machine to apply voltage between two copper pin of electric melting sleeve, resistance wire generates heat, by the PE plastic molting of resistance wire periphery, and then be fused together.
Coiling electric heating wire 4 on core rod in advance when electric fusion welding adapter 2 makes, specifically be implemented as follows: first utilize reeling machine to be wound around electric heating wire 4 on the core rod being prefabricated with two screw thread silk groove, mold cavity is put into after coiling completes, after injection machine matched moulds, by in the PE raw material press-in die die cavity of fusing, the PE raw material filling Die space of fusing, wait for PE raw material in mould after cooling and shaping, injection moulding machine mould open, refrigeration barrel is put into after being taken out simultaneously together with core rod by product, carry out cooling and shaping again, then utilize stripper by the core rod brute force pull-out in product, electric heating wire and copper pin are left in product stand-by.
As shown in Figure 2, for electric fusion welding end 2 because it is at right angle setting, hidden copper pin in it rushes to, be easy to the connection of the voltage terminal of electro-fusion welding machine, the PE pipe end of straight tube steel plastic pipe is inserted electric fusion welding end 2, hidden copper pin 3 applies certain voltage with electro-fusion welding machine, electrothermal wire heating, by the plastic molting of periphery, after plastic molting, plastic column in peep hole 7 has melted heat due to inside and has been extruded, and illustrate that inner fusing degree meets the requirements thus, the outer surface that the insertion portion changing pipe fitting moulded by electric fusion welding end internal surface and steel is fused together.
embodiment 2
As shown in Figure 1, for hot melt PE pipe end 1 because it is level installation, therefore use electric smelting sleeve connection, one end connects external tubing or pipe fitting, insert this product hot melt pipe fitting end 1 at the other end of electric melting sleeve, utilize electro-fusion welding machine to apply voltage between two copper pin of electric melting sleeve, resistance wire generates heat, by the PE plastic molting of resistance wire periphery, and then be fused together.
Electric fusion welding adapter 2 first uses the core rod without silk groove to put into mold cavity, after injection machine matched moulds, by in the PE raw material press-in die die cavity of fusing, the PE raw material filling Die space of fusing, wait for PE raw material in mould after cooling and shaping, injection moulding machine mould open, refrigeration barrel is put into after being taken out simultaneously together with core rod by product, carry out cooling and shaping again, then utilize stripper by the core rod brute force pull-out in product, on the inwall at electric fusion welding place 2, the silk groove of two screw thread is first milled out again with routing machine, again electric heating wire is implanted silk groove inner, at copper pin 3 preformed hole, the two ends of electric heating wire 4 are stretched out by place respectively, after being connected with copper pin, by in copper pin press-in preset holes.
As shown in Figure 2, for electric fusion welding end 2 because it is at right angle setting, hidden copper pin in it rushes to, be easy to the connection of the voltage terminal of electro-fusion welding machine, the PE pipe end of straight tube steel plastic pipe is inserted electric fusion welding end 2, hidden copper pin 3 applies certain voltage with electro-fusion welding machine, electrothermal wire heating, by the plastic molting of periphery, after plastic molting, plastic column in peep hole 7 has melted heat due to inside and has been extruded, and illustrate that inner fusing degree meets the requirements thus, the outer surface that the insertion portion changing pipe fitting moulded by electric fusion welding end internal surface and steel is fused together.
Claims (4)
1. a head moulded by the electric-melting curved steel of integral molded plastic of usheing to seat, and it is characterized in that: tempreature bulb and electric fusion welding take over into an angle of 90 degrees once injection moulding, there is electric heating wire electric fusion welding tube opening inside, under the adapter of an angle of 90 degrees place electric fusion welding, have base.
2. head moulded by a kind of electric-melting according to claim 1 curved steel of integral molded plastic of usheing to seat, and it is characterized in that: between an angle of 90 degrees place tempreature bulb and electric fusion welding are taken over, have stiffening rib, stiffening rib, tempreature bulb, electric fusion welding adapter once injection moulding.
3. head moulded by a kind of electric-melting according to claim 1 curved steel of integral molded plastic of usheing to seat, it is characterized in that: the soldering copper pin power connection of electric fusion welding tube opening electric heating wire is axial arranged, and cover design for falling into, after electric fusion welding completes, outer surface does not have outstanding.
4. head moulded by a kind of electric-melting according to claim 1 curved steel of integral molded plastic of usheing to seat, and it is characterized in that: electric fusion welding tube opening has peep hole, has plastic column in peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986108.7A CN105423043A (en) | 2015-12-25 | 2015-12-25 | Electric melting type integral injection molding bent steel plastic head with base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986108.7A CN105423043A (en) | 2015-12-25 | 2015-12-25 | Electric melting type integral injection molding bent steel plastic head with base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105423043A true CN105423043A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510986108.7A Pending CN105423043A (en) | 2015-12-25 | 2015-12-25 | Electric melting type integral injection molding bent steel plastic head with base |
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| Country | Link |
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| CN (1) | CN105423043A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662916A (en) * | 2017-04-24 | 2020-01-07 | 半径系统有限公司 | Method for expanding a tubular structure |
-
2015
- 2015-12-25 CN CN201510986108.7A patent/CN105423043A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662916A (en) * | 2017-04-24 | 2020-01-07 | 半径系统有限公司 | Method for expanding a tubular structure |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |
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| WD01 | Invention patent application deemed withdrawn after publication |