CN202922943U - Composite tube extrusion molding equipment - Google Patents
Composite tube extrusion molding equipment Download PDFInfo
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- CN202922943U CN202922943U CN2012203951132U CN201220395113U CN202922943U CN 202922943 U CN202922943 U CN 202922943U CN 2012203951132 U CN2012203951132 U CN 2012203951132U CN 201220395113 U CN201220395113 U CN 201220395113U CN 202922943 U CN202922943 U CN 202922943U
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- gas
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Abstract
The utility model relates to composite tube extrusion molding equipment and belongs to polymer material molding and processing equipment. The composite tube extrusion molding equipment comprises an inner constant-diameter mandrel and an outer constant-diameter sleeve; the outer constant-diameter sleeve is sleeved at the end of the inner constant-diameter mandrel so as to be separated from an extrusion head; the inner constant-diameter mandrel is of a hollow tubular structure, and an inner cavity of the tubular mandrel is used as a cooling water circulating channel; the side wall of a negative-pressure cavity is provided with a gas flow through hole; a first lubricating gas circuit is composed of a gas-assistance-free die, a die gas inlet cover plate, a sealing ring, a gas-assisted die jacket and a gas-assisted die, and a sealed gas chamber A is formed by the gas-assistance-free die, the gas-assisted die jacket and a gas-assisted die; and a second lubricating gas circuit is composed of a mandrel fixing sleeve, an inner mandrel sleeve, a gas-assisted mandrel and a mandrel gas inlet cover plate, and a sealed gas chamber B is formed by the mandrel fixing sleeve, the inner mandrel sleeve and the gas-assisted mandrel. The composite tube extrusion molding equipment has the advantages of reducing extrusion pressure and energy consumption, basically eliminating die swell, improving the product precision, reducing material waste, shortening the forming period and reducing the cost.
Description
Technical field
The utility model relates to a kind of polymer material molding process equipment, particularly a kind of composite metal plastic pipe extrusion molding device.
Background technology
Steel-plastics composite pipe take the perforation steel pipe as skeleton is owing to intensity height, good corrosion resistance, light weight, steel are moulded
The fully compound many advantages such as do not separate more and more receives publicity.The production process of this type of tubing mainly comprises three parts, and namely 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 continuously good molding materials 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 occur.Therefore, the diameter-setting equipment of one of above-mentioned three parts is most important for its moulding.But in the prior art, what often can produce is: or owing to fit between the lateral wall of the inwall of shaping pipe and core and not exclusively, 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 need of production, produce qualified high-quality extrusion molding steel-plastics composite pipe.
The utility model content
The purpose of this utility model is in order to solve the deficiencies in the prior art, to provide a kind of multiple tube extrusion equipment to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of compound pipe molding extrusion equipment, comprise interior sizing core and outer calibration sleeve, described interior sizing core is connected with fixed head by outer calibration sleeve, described interior sizing core extends from extruder head, and the end that described outer calibration sleeve is set in interior sizing core makes it separate setting with extruder head; It is characterized in that comprise that also described interior sizing core is hollow tubular structures without auxiliary mouthful of mould of gas, mouthful mould air inlet cover plate, sealing ring, auxiliary mouthful of mould overcoat of gas, auxiliary mouthful of mould structure of gas, the inner chamber of tubular core mold is the cooling water circulation passage; The end of tubular core mold arranges negative pressure cavity, offers the air-flow through hole on the sidewall of negative pressure cavity; Wherein, without auxiliary mouthful of mould of gas, mouthful mould air inlet cover plate, sealing ring, auxiliary mouthful of mould overcoat of gas, the lubricated gas gas circuit of auxiliary mouthful of mould formation of gas article one, described without auxiliary mouthful of mould of gas, the gentle auxiliary mouthful of mould formation closed air chamber A of auxiliary mouthful of mould overcoat of gas; Described core fixed cover, core inner sleeve, the auxiliary core of gas, core air inlet cover plate consist of the lubricated gas gas circuit of second, and described core fixed cover, core inner sleeve, the auxiliary core of gas form closed air chamber B;
Above-mentioned a kind of steel-plastics composite pipe extrusion equipment, it is characterized in that: described core runs through extruder head, imports a side being positioned at the holed metal skeleton, is fixed on the frame outside the head by the core support;
Above-mentioned a kind of steel-plastics composite pipe extrusion equipment is characterized in that: between the auxiliary core of described core and gas, be bolted between the auxiliary core of gas and the core air inlet cover plate;
Above-mentioned a kind of steel-plastics composite pipe extrusion equipment is characterized in that: the material of the auxiliary mouthful of gentle auxiliary core of mould of described gas is porous material;
Above-mentioned a kind of steel-plastics composite pipe extrusion equipment is characterized in that: described air-flow through hole is uniform on the circumference of negative pressure cavity sidewall;
Compared with the prior art, the beneficial effects of the utility model are embodied in:
L, the utility model pass through to adopt the hollow tubular core rod, and vacuum cavity is set in core rod, effectively improve the inwall of shaping pipe and the applying degree between the mould heart lateral wall.Thereby improved significantly the smooth degree of shaping pipe inwall, improved its internal diameter size precision.Also so that shaping pipe is more closely knit, even.
2, the utility model passes through to adopt the hollow tubular core rod, and the inner chamber of core rod is the cooling water circulation passage.Implement to force cooling by the cooling water that therefrom flows through to being attached to the outer pipe to be formed of core.Thereby effectively avoided the bonding of material at mandrel surface, do not stopped up the negative-pressure air-flow through hole, be willing to become possibility thereby make to produce to bear, improved the smooth degree of shaping pipe madial wall.Simultaneously, because enforcement is cold by force, shaping speed improves greatly.
3, the utility model 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.
Description of drawings
Fig. 1 is the structural representation of a kind of multiple tube extrusion equipment of the utility model;
Fig. 2 is gas flow schematic diagram between mouth mould and the plastic melt of a kind of multiple tube extrusion equipment of the utility model;
Fig. 3 is gas flow schematic diagram between the core of a kind of multiple tube extrusion equipment of the utility model and plastic melt;
The specific embodiment
Further understand and understanding for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
A kind of steel-plastics composite pipe extrusion equipment in this preferred embodiment, as Figure 1-3, a kind of compound pipe molding extrusion equipment, comprise interior sizing core 100 and outer calibration sleeve 200, described interior sizing core 100 is connected connection by outer calibration sleeve 200 with fixed head, described interior sizing core 100 extends from extruder head 300, and the end that described outer calibration sleeve 200 is set in interior sizing core 100 makes it separate setting with extruder head 300; It is without auxiliary mouthful of mould 6 of gas, mouthful mould air inlet cover plate 8, sealing ring 9, auxiliary mouthful of mould overcoat 10 of gas, auxiliary mouthful of mould 12 of gas, and described interior sizing core 100 is hollow tubular structures, and the inner chamber of tubular core mold 100 is the cooling water circulation passage; The end of tubular core mold 100 arranges negative pressure cavity 4, offers air-flow through hole 5 on the sidewall of negative pressure cavity 4; Wherein, without auxiliary mouthful of mould 6 of gas, mouthful mould air inlet cover plate 8, sealing ring 9, auxiliary mouthful of mould overcoat 10 of gas, lubricated gas 19 gas circuits of auxiliary mouthful of mould of gas 12 formation article one, described without auxiliary mouthful of mould 6 of gas, auxiliary mouthful of mould overcoat of gas 10 gentle auxiliary mouthful of moulds 12 formation closed air chamber A11; Described core fixed cover 800, core inner sleeve 16, the auxiliary core 13 of gas, core air inlet cover plate 14 consists of lubricated gas 19 gas circuits of second, described core fixed cover 800, core inner sleeve 16, the auxiliary core 13 of gas forms closed air chamber B15, wherein, described core 100 runs through extruder head 300, import a side being positioned at the holed metal skeleton, be fixed on the frame outside the head by core support 600, between the auxiliary core 13 of described core 100 and gas, be bolted between the auxiliary core 13 of gas and the core air inlet cover plate 14, the material of auxiliary mouthful of mould 12 gentle auxiliary cores 13 of described gas is porous materials; Described air-flow through hole 5 is uniform on the circumference of negative pressure cavity sidewall.
A kind of extrusion method that is fit to a kind of compound pipe molding extrusion equipment claimed in claim 1, step is as follows:
A. plasticizing: make processing plastic be melted into plastic melt 18 by external device.
B. moulding: plastic melt 18 through consist of without auxiliary mouthful of mould 6 of gas and core 100 without gas assisted molding district runner, enter the gas assisted molding runner; Lubricated gas with certain pressure enters the gas assisted molding runner with the time-division two-way, one road gas enters the air chamber 11 that is made of mouth mould air inlet cover plate 8, auxiliary mouthful of mould overcoat 10 of gas, auxiliary mouthful of mould 12 of gas, and penetrates into the cavity runner that is made of auxiliary mouthful of mould 12 gentle auxiliary cores 13 of gas by auxiliary mouthful of mould 12 of gas; Another road gas enters the air chamber B15 that is made of the auxiliary core 13 of gas, core air inlet cover plate 14 and core inner sleeve 16, and penetrates into the cavity runner that is made of auxiliary mouthful of mould 12 gentle auxiliary cores 13 of gas by the auxiliary core 13 of gas.Wherein, in order to guarantee the effect that circulates, described certain pressure is 0～0.5Mpa, and should lubricated gas 19 be compressed air.
In the present embodiment, the turnover mouth of pipe of cooling water all be positioned at core l00 to enter mould distolateral, in the cavity of core rod l00, inner tube 700 is set.Cooling water is introduced from inner tube 700, along the madial wall of hollow core rod l00 draw as, carry out heat exchange when drawing, the tubing that is attached on core 100 lateral walls is implemented to force cooling.The end of tubular core mold l00 is provided with negative pressure cavity 400, offers air-flow through hole 500 on the sidewall of negative pressure cavity 400.Air-flow through hole 500 is uniform on the circumference of negative pressure cavity 400 sidewalls.The tubing that is positioned at air-flow through hole 500 positions solidifies not yet fully.Herein, the existence of negative pressure cavity 400 can make pipe material inner wall be close to 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, for the manufacturing of continuously shaped steel-plastics composite pipe, in the present embodiment, core 100 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 sum, it only is preferred embodiment of the present utility model, be not to limit the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.
Claims (5)
1. multiple tube extrusion equipment, comprise interior sizing core, core fixed cover, core inner sleeve, the auxiliary core of gas, core air inlet cover plate and outer calibration sleeve, described interior sizing core is connected with fixed head by outer calibration sleeve, described interior sizing core extends from extruder head, and the end that described outer calibration sleeve is set in interior sizing core makes it separate setting with extruder head; It is characterized in that comprise that also described interior sizing core is hollow tubular structures without auxiliary mouthful of mould of gas, mouthful mould air inlet cover plate, sealing ring, auxiliary mouthful of mould overcoat of gas, auxiliary mouthful of mould structure of gas, the inner chamber of tubular core mold is the cooling water circulation passage; The end of tubular core mold arranges negative pressure cavity, offers the air-flow through hole on the sidewall of negative pressure cavity; Wherein, without auxiliary mouthful of mould of gas, mouthful mould air inlet cover plate, sealing ring, auxiliary mouthful of mould overcoat of gas, the lubricated gas gas circuit of auxiliary mouthful of mould formation of gas article one, described without auxiliary mouthful of mould of gas, the gentle auxiliary mouthful of mould formation closed air chamber A of auxiliary mouthful of mould overcoat of gas; Described core fixed cover, core inner sleeve, the auxiliary core of gas, core air inlet cover plate consist of the lubricated gas gas circuit of second, and described core fixed cover, core inner sleeve, the auxiliary core of gas form closed air chamber B.
2. a kind of multiple tube extrusion equipment according to claim 1 is characterized in that described core runs through extruder head, imports a side being positioned at the holed metal skeleton, is fixed on the frame outside the head by the core support.
3. a kind of multiple tube extrusion equipment according to claim 2 is characterized in that, between the auxiliary core of described core and gas, be bolted between the auxiliary core of gas and the core air inlet cover plate.
4. a kind of multiple tube extrusion equipment according to claim 3 is characterized in that, the material of the auxiliary mouthful of gentle auxiliary core of mould of described gas is porous material.
5. a kind of multiple tube extrusion equipment according to claim 4 is characterized in that, described air-flow through hole is uniform on the circumference of negative pressure cavity sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203951132U CN202922943U (en) | 2012-08-10 | 2012-08-10 | Composite tube extrusion molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203951132U CN202922943U (en) | 2012-08-10 | 2012-08-10 | Composite tube extrusion molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202922943U true CN202922943U (en) | 2013-05-08 |
Family
ID=48212937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203951132U Expired - Fee Related CN202922943U (en) | 2012-08-10 | 2012-08-10 | Composite tube extrusion molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202922943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109278244A (en) * | 2018-11-01 | 2019-01-29 | 福建亚通新材料科技股份有限公司 | A kind of compound core pipe prefabricated pipe molding equipment |
-
2012
- 2012-08-10 CN CN2012203951132U patent/CN202922943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109278244A (en) * | 2018-11-01 | 2019-01-29 | 福建亚通新材料科技股份有限公司 | A kind of compound core pipe prefabricated pipe molding equipment |
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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: 20130508 Termination date: 20130810 |