CN201685428U - Extrusion molding device for plastic-steel composite pipes - Google Patents
Extrusion molding device for plastic-steel composite pipes Download PDFInfo
- Publication number
- CN201685428U CN201685428U CN2010201619548U CN201020161954U CN201685428U CN 201685428 U CN201685428 U CN 201685428U CN 2010201619548 U CN2010201619548 U CN 2010201619548U CN 201020161954 U CN201020161954 U CN 201020161954U CN 201685428 U CN201685428 U CN 201685428U
- Authority
- CN
- China
- Prior art keywords
- gas
- auxilliary
- mould
- plug
- mouthful
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an extrusion molding device for plastic-steel composite pipes. The device comprises a sieve pore sleeve, a connecting flange, a compression sleeve, a core rod, an even material sleeve, a gas-free assisting die and a connecting outer sleeve; the right end of the gas-free assisting die is connected with a gas assisting die; a gas assisting die outer sleeve is mounted on the outer side of the gas assisting die and connected with a die intake cover plate, and ensures leak tightness of a gas passage through a seal ring; the right end of the core rod is connected with a gas assisting core rod; and a core rod inner sleeve is mounted on the inner side of the gas assisting core rod of which the right end is connected with a core rod intake cover plate. The utility model adopts the molding method that lubricating gas with certain pressure is forced to enter a gas assisting molding channel in two ways at the same time. The utility model ensures that a steady aircushion film is formed among the dies, the core rod and a plastic melt, thereby reducing extrusion pressure, saving energy consumption, basically eliminating die swelling, improving product accuracy, reducing material waste, shortening molding cycle, and saving the cost.
Description
Technical field
The utility model relates to a kind of macromolecular material contour machining equipment, particularly a kind of composite metal plastic pipe extrusion molding device.
Background technology
Steel-plastics composite pipe be a kind of be wild phase with steel wire or steel plate, be matrix with high density polyethylene (HDPE), polypropylene, continuously shaped and have a two-sided anti-corrosion pipeline of premium properties on extruding production line.Its remarkable design feature is that the corrosion resistance of plastics and the high strength of steel pipe are integrated in one, and has been widely used in fields such as oil, natural gas, chemical industry, municipal administration.Existing composite metal plastic pipe extrusion molding device mainly comprises sieve aperture cover, adpting flange, wedging ring, plug, homocline cover, mouthful mould and is connected overcoat, but owing to the high viscosity and the viscoplasticity of polymer melt, has following shortcoming during the steel-plastics composite pipe moulding:
1, be prone to extrusion swelling: extrusion swelling has increased the extrusion die design difficulty, influences the multiple tube precision.
2, the internal drop of extrusion die runner is big: make and extrude the increase of multiple tube internal stress, cause distortion to increase, also increased energy consumption simultaneously.
3, extrudate blemish: the critical extruded velocity that surpasses material owing to extruded velocity makes product surface produce " turtle skin " and extrudes phenomenon such as break, and the appearance of extrudate surface quality defect has limited the raising of extruded velocity, influences production efficiency.
Above Three Difficult Issues have a strong impact on multiple tube goods precision, the restriction extruded velocity promotes, and cause extruding the energy consumption height.Produce the traditional extruding technology of having its source in of above problem and adopt non-slippage adhesion sheared edge mould extrusion way, make that mouthful die side wall is big to the resistance of melt extrusion.
Summary of the invention
Be to solve the problems referred to above that prior art exists, the utility model will design a kind of formed precision height, extruded velocity is fast, energy consumption is low composite metal plastic pipe extrusion molding device.
To achieve these goals, the technical solution of the utility model is as follows: a kind of composite metal plastic pipe extrusion molding device, comprise sieve aperture cover, adpting flange, wedging ring, plug, homocline cover, the auxilliary mouthful mould of no gas and be connected overcoat, auxilliary mouthful of mould right-hand member of described no gas is connected with the auxilliary mouthful mould of gas, auxilliary mouthful of mould outside of described gas is equipped with auxilliary mouthful of mould overcoat of gas, auxilliary mouthful of mould overcoat of described gas is connected with a mouthful mould air inlet cover plate, and guarantees the sealing of gas passage by sealing ring; Described plug right-hand member is connected with the auxilliary plug of gas, and the auxilliary plug installed inside of described gas has the interior cover of plug, right-hand member to be connected with plug air inlet cover plate.
The auxilliary mouthful mould of no gas described in the utility model, mouthful mould air inlet cover plate, sealing ring, auxilliary mouthful of mould overcoat of gas, the auxilliary mouthful mould of gas constitute the lubricated gas gas circuit of article one, and the auxilliary mouthful mould of described no gas, the gentle auxilliary mouthful of mould of auxilliary mouthful of mould overcoat of gas form closed air chamber A; Cover, the auxilliary plug of gas, plug air inlet cover plate constitute the lubricated gas gas circuit of second in described plug, the plug, and cover, the auxilliary plug of gas form closed air chamber B in described plug, the plug.
Homocline described in the utility model cover be connected overcoat and be bolted to connection, adpting flange be connected overcoat and be bolted to connection.
Sieve aperture cover described in the utility model, wedging ring, the auxilliary mouthful mould of no gas, auxilliary mouthful of mould overcoat of gas, the assembling successively in order of the auxilliary mouthful mould of gas connect overcoat and are bolted to connection with a mouthful mould air inlet cover plate.
Between the auxilliary plug of plug described in the utility model and gas, be connected by bolt between the auxilliary plug of gas and the plug air inlet cover plate.
The material of the auxilliary mouthful of gentle auxilliary plug of mould of gas described in the utility model is a porous material.
Compared with prior art, the utlity model has following beneficial effect:
1, because the utility model is in extruding the steel-plastics composite pipe process, adopt auxilliary mouthful of gentle auxilliary mandrel structure of mould of gas, make a mouthful mould, form between plug and the plastic melt and stablize air-cushion film, because the coefficient of friction of gas is extremely low, the air cushion rete is with mouth mould inwall, the plug outer wall drops to minimum to the frictional resistance of melt, characteristic by the control air-cushion film, make extrusion molding convert the approximate non-adhesion extrusion way of complete slippage to by non-slippage adhesion extrusion way, plastic melt is piston-shaped in runner extrudes, and realizes reducing extrusion pressure, save energy consumption, the basic die swelling of eliminating has improved the goods precision, reduces waste of material, shorten molding cycle, saved cost.
2, since the utility model in the gas assisted molding zone, auxilliary mouthful of mould of gas, the auxilliary plug of gas all adopt porous material, have guaranteed the uniformity of the lubricated gas in injection moulding district, have strengthened the stability of air film.
Description of drawings
3 in the total accompanying drawing of the utility model, wherein:
Fig. 1 is the assembling schematic diagram of steel plastic composite pipe extrusion molding apparatus.
Fig. 2 is a gas flow schematic diagram between mouth mould and the plastic melt of steel plastic composite pipe extrusion molding apparatus.
Fig. 3 is a gas flow schematic diagram between the plug of steel plastic composite pipe extrusion molding apparatus and plastic melt.
Among the figure: 1, plug, 2, adpting flange, 3, the sieve aperture cover, 4, the homocline cover, 5, wedging ring, 6, auxilliary mouthful of mould of no gas, 7, connect overcoat, 8, mouthful mould air inlet cover plate, 9, sealing ring, 10, auxilliary mouthful of mould overcoat of gas, 11, air chamber A, 12, auxilliary mouthful of mould of gas, 13, the auxilliary plug of gas, 14, plug air inlet cover plate, 15, air chamber B, 16, cover in the plug, 17, strengthen steel skeleton, 18, plastic melt, 19, lubricated gas.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.As Figure 1-3, a kind of composite metal plastic pipe extrusion molding device, comprise sieve aperture cover 3, adpting flange 2, wedging ring 5, plug 1, homocline cover 4, the auxilliary mouthful mould 6 of no gas and be connected overcoat 7, auxilliary mouthful of mould 6 right-hand members of described no gas are connected with the auxilliary mouthful mould 12 of gas, auxilliary mouthful of mould 12 outsides of described gas are equipped with auxilliary mouthful of mould overcoat 10 of gas, auxilliary mouthful of mould overcoat 10 of described gas is connected with a mouthful mould air inlet cover plate 8, and guarantees the sealing of gas passage by sealing ring 9; Described plug 1 right-hand member is connected with the auxilliary plug 13 of gas, and auxilliary plug 13 installed inside of described gas have the interior cover 16 of plug, right-hand member to be connected with plug air inlet cover plate 14.The auxilliary mouthful mould 6 of described no gas, mouthful mould air inlet cover plate 8, sealing ring 9, auxilliary mouthful of mould overcoat 10 of gas, the auxilliary mouthful mould 12 of gas constitute lubricated gas 19 gas circuits of article one, and the auxilliary mouthful mould 6 of described no gas, auxilliary mouthful of mould overcoat of gas 10 gentle auxilliary mouthful of moulds 12 form closed air chamber A11; Cover 16, the auxilliary plug 13 of gas, plug air inlet cover plate 14 constitute lubricated gas 19 gas circuits of second in described plug 1, the plug, and cover 16, the auxilliary plug 13 of gas form closed air chamber B15 in described plug 1, the plug.Described homocline cover 4 be connected overcoat 7 and be bolted to connection, adpting flange 2 be connected overcoat 7 and be bolted to connection.Described sieve aperture cover 3, wedging ring 5, the auxilliary mouthful mould 6 of no gas, auxilliary mouthful of mould overcoat 10 of gas, the assembling successively in order of the auxilliary mouthful mould 12 of gas connect overcoat 7 and are bolted to connection with a mouthful mould air inlet cover plate 8.Between the auxilliary plug 13 of described plug 1 and gas, be connected by bolt between the auxilliary plug 13 of gas and the plug air inlet cover plate 14.The material of auxilliary mouthful of mould 12 gentle auxilliary plugs 13 of described gas is porous materials.
Forming method of the present utility model may further comprise the steps:
A, plasticizing: fix enhancing steel skeleton 17 earlier, make plastic melt 18 begin to take shape tubular flow with the helical flow path that homocline cover 4 forms then through connecting overcoat 7, and enter by the many rows sieve aperture that distributes on the sieve aperture cover 3 in the cavity runner of sieve aperture cover 3 and plug 1 formation, be right after and enter in the cavity runner that wedging ring 5 and plug 1 constitute, the variation by wedging ring 5 cross sections makes plastic melt 18 further plastified by shear action;
B, moulding: plastic melt 18 enters the gas assisted molding runner through the no gas assisted molding district runner of auxilliary mouthful mould 6 of no gas and plug 1 formation; Lubricated gas 19 with certain pressure enters the gas assisted molding runner with the time-division two-way, one road gas enters the air chamber A11 that is made of mouth mould air inlet cover plate 8, auxilliary mouthful of mould overcoat 10 of gas, the auxilliary mouthful mould 12 of gas, and penetrates into by auxilliary mouthful of cavity runner that mould 12 gentle auxilliary plugs 13 constitute of gas by the auxilliary mouthful mould 12 of gas; Another road gas enters by the cover 16 air chamber B15 that constitute in gas auxilliary plug 13, plug air inlet cover plate 14 and the plug, and penetrates into by auxilliary mouthful of cavity runner that mould 12 gentle auxilliary plugs 13 constitute of gas by the auxilliary plug 13 of gas.
Certain pressure described in the utility model is 0～0.5MPa.Described lubricated gas 19 is compressed air.
Claims (6)
1. composite metal plastic pipe extrusion molding device, comprise sieve aperture cover (3), adpting flange (2), wedging ring (5), plug (1), homocline cover (4), auxilliary mouthful of mould (6) of no gas and be connected overcoat (7), it is characterized in that: auxilliary mouthful of mould (12) of auxilliary mouthful of mould (6) right-hand member of described no gas and gas is connected, auxilliary mouthful of mould (12) outside of described gas is equipped with the auxilliary mouthful mould overcoat (10) of gas, auxilliary mouthful of mould overcoat (10) of described gas is connected with a mouthful mould air inlet cover plate (8), and guarantees the sealing of gas passage by sealing ring (9); Described plug (1) right-hand member is connected with the auxilliary plug (13) of gas, and described gas is assisted plug (13) installed inside has the interior cover of plug (16), right-hand member to be connected with plug air inlet cover plate (14).
2. a kind of composite metal plastic pipe extrusion molding device according to claim 1, it is characterized in that: the auxilliary mouthful mould (6) of described no gas, mouthful mould air inlet cover plate (8), sealing ring (9), the auxilliary mouthful mould overcoat (10) of gas, auxilliary mouthful of mould (12) of gas constitute lubricated gas (19) gas circuit of article one, and the auxilliary mouthful mould (6) of described no gas, auxilliary mouthful of gentle auxilliary mouthful of mould of mould overcoat (10) (12) of gas form closed air chamber A (11); Cover (16), the auxilliary plug (13) of gas, plug air inlet cover plate (14) constitute lubricated gas (19) gas circuit of second in described plug (1), the plug, and cover (16), the auxilliary plug (13) of gas form closed air chamber B (15) in described plug (1), the plug.
3. a kind of composite metal plastic pipe extrusion molding device according to claim 1 is characterized in that: described homocline cover (4) be connected overcoat (7) and be bolted to connection, adpting flange (2) be connected overcoat (7) and be bolted to connection.
4. a kind of composite metal plastic pipe extrusion molding device according to claim 1, it is characterized in that: described sieve aperture cover (3), wedging ring (5), the auxilliary mouthful mould (6) of no gas, the auxilliary mouthful mould overcoat (10) of gas, the assembling successively in order of auxilliary mouthful of mould (12) of gas connect overcoat (7) and are bolted to connection with a mouthful mould air inlet cover plate (8).
5. a kind of composite metal plastic pipe extrusion molding device according to claim 1 is characterized in that: between the auxilliary plug (13) of described plug (1) and gas, be connected by bolt between the auxilliary plug (13) of gas and the plug air inlet cover plate (14).
6. a kind of composite metal plastic pipe extrusion molding device according to claim 1 is characterized in that: the material of auxilliary mouthful of mould (12) gentle auxilliary plugs (13) of described gas is a porous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201619548U CN201685428U (en) | 2010-04-16 | 2010-04-16 | Extrusion molding device for plastic-steel composite pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201619548U CN201685428U (en) | 2010-04-16 | 2010-04-16 | Extrusion molding device for plastic-steel composite pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201685428U true CN201685428U (en) | 2010-12-29 |
Family
ID=43373717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201619548U Expired - Fee Related CN201685428U (en) | 2010-04-16 | 2010-04-16 | Extrusion molding device for plastic-steel composite pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201685428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811358A (en) * | 2010-04-16 | 2010-08-25 | 大连海事大学 | Composite metal plastic pipe extrusion molding device and molding method thereof |
| CN105172093A (en) * | 2015-07-08 | 2015-12-23 | 南昌大学 | Double-gas-assisted extrusion molding device and method for plastic microtubes |
-
2010
- 2010-04-16 CN CN2010201619548U patent/CN201685428U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811358A (en) * | 2010-04-16 | 2010-08-25 | 大连海事大学 | Composite metal plastic pipe extrusion molding device and molding method thereof |
| CN101811358B (en) * | 2010-04-16 | 2012-09-12 | 大连海事大学 | Composite metal plastic pipe extrusion molding device and molding method thereof |
| CN105172093A (en) * | 2015-07-08 | 2015-12-23 | 南昌大学 | Double-gas-assisted extrusion molding device and method for plastic microtubes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102275274B (en) | The injection mechanism of super large injection volume and the extruding technique of super-large size plastic goods | |
| CN101811358B (en) | Composite metal plastic pipe extrusion molding device and molding method thereof | |
| CN207657095U (en) | A kind of thermoplastic material coforming mold | |
| CN201143522Y (en) | Hot-extrusion mold | |
| CN201685428U (en) | Extrusion molding device for plastic-steel composite pipes | |
| CN202114883U (en) | Injection mechanism with ultra-large injection volume | |
| CN206870330U (en) | A kind of plastic conduit mould | |
| CN103568241A (en) | Composite tube molding extrusion equipment and method | |
| CN113043571A (en) | Ultra-high molecular weight polyethylene pipe co-extrusion die and method | |
| CN200981327Y (en) | Regenerative polypropylene modified enhancement molded drainpipe die | |
| CN203460421U (en) | Automatic silicone oil coating equipment for heat-shrinkable sleeve | |
| CN102601969A (en) | Mould and process for one-mould-double-output forming of polypropylene random copolymer pipes | |
| CN206011676U (en) | A kind of plastics reinforcement ripple extrudes composite die | |
| CN1099946C (en) | Plastic extruding formation process | |
| CN208774020U (en) | Heavy wall pipe and bar integrated production equipment | |
| CN208452263U (en) | A kind of abrasive disk type oil heating head | |
| CN204687287U (en) | Pressurizer | |
| CN205244637U (en) | Novel screw thread formula plastics separation and reunion hard tube structure | |
| CN203438460U (en) | Injection device of injection molding machine | |
| CN206446086U (en) | A kind of high speed PVC mould with double split flow tatting structure | |
| CN202507507U (en) | One-die double-extrusion flow splitting die for extrusion forming of polypropylene pipe | |
| CN102152468A (en) | Process for carrying out integrated blow molding on irregular-shaped air-intake pipelines of automobiles | |
| CN203580074U (en) | Inner co-extrusion die | |
| CN102211392B (en) | Plastic extruding machine with curve-shaped machine neck flow channel | |
| CN202805599U (en) | Die assembly of extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130416 |