CN205033555U - Extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product - Google Patents
Extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product Download PDFInfo
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- CN205033555U CN205033555U CN201520560589.0U CN201520560589U CN205033555U CN 205033555 U CN205033555 U CN 205033555U CN 201520560589 U CN201520560589 U CN 201520560589U CN 205033555 U CN205033555 U CN 205033555U
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- soaking zone
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Abstract
The utility model discloses an extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product, the mould is including managing embryo shaping district, insulated zoon and the two -way district that dilates, pipe embryo shaping district, insulated zoon and the two -way district that dilates connect in proper order, pipe embryo shaping district comprises die body, reposition of redundant personnel awl, mandrel support, high temperature resistant adiabatic hose and joint, the aircraft nose body, bush, coaxial adjusting screw, plug, heater, thermocouple and connecting screw, passageway in plug and the mandrel support is equipped with high temperature resistant adiabatic hose and joint. The utility model discloses a mainly creat a little: 1 )Distinguish the section and be equipped with matched with vacuum apparatus and passageway dilating the shaping, guaranteed the high orientation of tubular product, 2 )Suitable axial tension ratio and radial drawing ratio are select to the mould, can gain the smooth smooth tubular product of high degree orientation and internal and external surface, 3 ) mould structure is simple reasonable, has reduced the length of plug, has improved the axiality of tubular product and the homogeneity of wall thickness degree.
Description
Technical field
The present invention relates to a kind of online biaxial orientation plastic extruding forming mould, particularly relate to a kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe.
Background technology
It is biaxial stretch-formed being stretched as of carrying out of axial, the radial both direction of pipe when thermoplastic plastic pipe is extruded.Be proven: the tubing after biaxial stretch-formed has showed higher physical and mechanical property, substantially increases its intensity and toughness, and considerably reduces the consumption of material, has wide application.
At present, people adopt the online biaxial orientation extrusion molding mould of die drawing method mostly, the tubing of the intensity that the mould energy comparision of production of this invention is good and toughness, but the weak point of this invention is: when the tubing of comparision of production large gauge, because diameter of mandrel is large, length is also very long, easy distortion, make the axiality difference of tubing and pipe thickness inhomogeneities seriously, and complicated operation, production cost is high.
Summary of the invention
The invention provides a kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe, there is provided a kind of control tubing dimensional accuracy high, drawing process is easy to control, the manufacture footpath of stretching size of pipe and tubing and surface quality, the extrusion molding mould of axle biaxial tension plastic pipe and technique can be improved, the technical problem that, pipe thickness inhomogeneities poor with the axiality solving the tubing that prior art exists seriously, complicated operation, energy consumption are large, production cost is high.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
An extrusion molding mould for online biaxial orientation plastics heavy caliber pipe, mould comprises pipe embryo forming district, heat preservation zone and two-wayly dilates district; Pipe embryo forming district, heat preservation zone and the two-way district that dilates are linked in sequence.
Further,
Described pipe embryo forming district is made up of die body, spreader, core support, high temperature resistant adiabatic flexible pipe and joint, handpiece body, mouth mould, coaxial adjustment screw, plug, heater, thermocouple and attachment screw, and the passage in described plug and core support is provided with high temperature resistant adiabatic flexible pipe and joint.
Described heat preservation zone is made up of soaking zone plug, soaking zone mouth mould, and the flat segments length of described heat preservation zone is 20-100 times that pipe germ wall is thick; Have a through hole in described soaking zone plug, it dilates circular cone along biaxial stretch-formed direction there being one section, described in dilate circular cone and flat segments seamlessly transits with fillet, so that carry out biaxial stretch-formed to tubing; Have in described soaking zone mouth mould and be connected with the liquid of uniform temperature or the passage of gas; Described soaking zone mouth mould and mouth mould have the frustum that cooperatively interacts and bore groove locates, and fixed by attachment screw, there is the first heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, described soaking zone plug and plug have the frustum that cooperatively interacts and bore groove locates, there is the second heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, and fixed by attachment screw.
Described fillet size is R10-50mm.
Describedly two-wayly dilate that district dilates die cavity by stretching, dividing plate, thermocouple, heater, vacuum interface form, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, be convenient to carry out segmentation absorption to pipe embryo, be convenient to again the tubing can producing different size when not changing and stretching and dilate die cavity; Round-meshed rubber or elastoplast centered by described dividing plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and thus stretching, it is replaceable to dilate die cavity, to produce the tubing of various different size.
The cone angle that the described two-way stretching dilating district dilates die cavity is 5-70 °, described knuckle is R20-200mm, the described two-way axial tensile rate >=1:1.05 dilating district, the described two-way radial drawing ratio >=1:1.1 dilating district, and the described two-way radial drawing ratio dilating district is greater than axial tensile rate.
Main innovate point of the present invention: 1) distinguish section at expansion shaped insertion-type and be provided with the vacuum plant and passage that match, ensure that the height-oriented of tubing; 2) mould chooses suitable axial tensile rate and radial drawing ratio, can obtain high level orientation and the smooth tubing of surfaces externally and internally; 3) mould structure advantages of simple, decreases the length of plug, improves the axiality of tubing and the uniformity of pipe thickness; 4) in die mandrel and core support, be provided with the passage of high temperature resistant adiabatic flexible pipe and joint, by connecing air exhauster, in tube extrusion process, tubing inner air flows fast, take away pipe material inner wall heat, thus raising cooling effectiveness, and be conducive to the length reducing heat preservation zone, thus reduce the entire length of mould, and do not affect the temperature of mold core rod; 5) when changing stretching and dilating die cavity, the tubing of not planting specification can also be produced; When do not change stretch dilate die cavity, also can the tubing of production plurality of specifications, can continuous seepage be realized, save production cost.
Beneficial effect:
1, according to different plastic material, choose suitable dilating angle and dilate knuckle, smoother axis and the radial drawing of pipe embryo can be ensured;
2, be provided with the vacuum plant matched in expansion shaped insertion-type district, ensure that the continuous orientation of tubing;
3, the heating and heat-insulating device be provided with in pipe embryo forming district and expansion shaped insertion-type district, makes plastics in certain temperature range, carry out plastic elongation and makes its strand obtain certain orientation, can obtain the tubing of good mechanical properties;
4, choose suitable axial tensile rate and radial drawing ratio, high level biaxial orientation and the smooth tubing of surfaces externally and internally can be obtained;
5, with the tubing of nothing through the same specification of biaxial stretch-formed production, under identical performance, wall thickness can reduce more than 1/4, reaches and saves material, economize energy and reduction production cost.
6, when changing expansion shaped insertion-type ring, the tubing of not planting specification can also be produced; When not changing expansion shaped insertion-type ring, also can the tubing of production plurality of specifications, can continuous seepage be realized, save production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is biaxial orientation plastics heavy caliber pipe extrusion molding mould structural representation.
1, die body; 2, spreader; 3, core support; 4, high temperature resistant adiabatic flexible pipe and joint; 5, handpiece body; 6, mouth mould; 7, coaxial adjustment screw; 8, plug; 9, the first heat insulating mattress; 10, attachment screw; 11, soaking zone mouth mould; 12, thermocouple; 13, stretching dilates die cavity; 14, thermocouple; 15, dividing plate; 16, heater; 17, vacuum interface; 18, soaking zone plug; 19, the second heat insulating mattress; 20, heater; 21, thermocouple; 22, thermocouple; 23, heater; 24, attachment screw; 25, attachment screw; 26, heater; 27, thermocouple; 28, attachment screw.
Detailed description of the invention
Describe the present invention below in conjunction with Figure of description.With reference to accompanying drawing, be described in detail the preferred embodiment of the present invention, wherein all identical Reference numerals represent identical parts.
An extrusion molding mould for online biaxial orientation plastics heavy caliber pipe, mould comprises pipe embryo forming district, heat preservation zone and two-wayly dilates district; Pipe embryo forming district, heat preservation zone and the two-way district that dilates are linked in sequence.
Further,
Described pipe embryo forming district is made up of die body, spreader, core support, high temperature resistant adiabatic flexible pipe and joint, handpiece body, mouth mould, coaxial adjustment screw, plug, heater, thermocouple and attachment screw, and the passage in described plug and core support is provided with high temperature resistant adiabatic flexible pipe and joint.
Described heat preservation zone is made up of soaking zone plug, soaking zone mouth mould, and the flat segments length of described heat preservation zone is 20-100 times that pipe germ wall is thick; Have a through hole in described soaking zone plug, it dilates circular cone along biaxial stretch-formed direction there being one section, described in dilate circular cone and flat segments seamlessly transits with fillet, so that carry out biaxial stretch-formed to tubing; Have in described soaking zone mouth mould and be connected with the liquid of uniform temperature or the passage of gas; Described soaking zone mouth mould and mouth mould have the frustum that cooperatively interacts and bore groove locates, and fixed by attachment screw, there is the first heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, described soaking zone plug and plug have the frustum that cooperatively interacts and bore groove locates, there is the second heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, and fixed by attachment screw.
Described fillet size is R10-50mm.
Describedly two-wayly dilate that district dilates die cavity by stretching, dividing plate, thermocouple, heater, vacuum interface form, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, be convenient to carry out segmentation absorption to pipe embryo, be convenient to again the tubing can producing different size when not changing and stretching and dilate die cavity; Round-meshed rubber or elastoplast centered by described dividing plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and thus stretching, it is replaceable to dilate die cavity, to produce the tubing of various different size.
The cone angle that the described two-way stretching dilating district dilates die cavity is 5-70 °, described knuckle is R20-200mm, the described two-way axial tensile rate >=1:1.05 dilating district, the described two-way radial drawing ratio >=1:1.1 dilating district, and the described two-way radial drawing ratio dilating district is greater than axial tensile rate.
Preferred embodiment:
Online biaxial orientation plastics heavy caliber pipe extrusion molding mould, comprises pipe embryo forming district, heat preservation zone and two-wayly dilates district; Pipe embryo forming district comprises die body 1, spreader 2, core support 3, high temperature resistant adiabatic flexible pipe and joint 4, handpiece body 5, mouth mould 6, coaxial adjustment screw 7, plug 8, heater 20, heater 23, heater 26; The compositions such as thermocouple 21, thermocouple 22, thermocouple 27, attachment screw 24, attachment screw 25, are provided with the passage of high temperature resistant adiabatic flexible pipe and joint 4 in plug 8 and core support 3; Heat preservation zone comprises the composition such as soaking zone plug 18, soaking zone mouth mould 11, the flat segments length of heat preservation zone is thick 50 times of pipe germ wall, a through hole is had in soaking zone plug 18, it a bit ofly dilates circular cone along biaxial stretch-formed direction has, circular cone and flat segments seamlessly transit with fillet, fillet size is R20mm, so that carry out biaxial stretch-formed to tubing; Soaking zone mouth mould 11 and mouth mould 6 have the frustum that cooperatively interacts and bore groove locates, fixed by attachment screw 10, there is the first heat insulating mattress 9 heat insulation between soaking zone mouth mould and mouth mould, soaking zone plug and plug have the frustum that cooperatively interacts and bore groove locates, there is the second heat insulating mattress 19 heat insulation between soaking zone mouth mould and mouth mould, fixed by attachment screw 28; The two-way district that dilates comprises that stretching dilates die cavity 13, thermocouple 14, dividing plate 15, heater 16, vacuum interface 17 form, stretching dilates segmentation in die cavity 13 and is provided with multiple separate vacuum passage, is convenient to the tubing can producing different size when not changing and stretching and dilate die cavity 13; Stretching dilates die cavity 13 and is threaded connection with soaking zone mouth mould 11; The cone angle that the two-way stretching dilating district dilates die cavity is 40 °, and knuckle is R100mm, the two-way axial tensile rate 1.25 dilating district, the two-way radial drawing ratio >=1:1.5 dilating district, and the two-way radial drawing ratio dilating district is greater than axial tensile rate.
It is replaceable that stretching dilates die cavity 13, to produce the tubing of various different size, improves production efficiency and reduce production cost.
Operation principle of the present invention: after plastic melt enters pipe embryo forming district from extruder, pipe is formed along die cavity flowing under the effect of extruder, pipe then enters heat preservation zone, heat preservation zone surfaces externally and internally is very smooth, pipe outer surface can be made to be of high quality, liquid or the gas of uniform temperature is connected with in soaking zone mouth mould, the air of soaking zone plug inside flows fast under the effect of air exhauster simultaneously, take away pipe material inner wall heat, the inside and outside wall temperature of tubing can be made from melt temperature to be cooled to the temperature of applicable biaxial orientation, and then to enter below two-way dilates district.Stretch dilate die cavity surround by the heater of accurate temperature controlling, make tubing remain on the temperature of applicable biaxial orientation.Then, under the tractive force and vacuum adsorption force effect of hauling machine, the stretching that pipe is forced through taper dilates die cavity, realizes the biaxial orientation under uniform temperature and pulling speed.
When being described in specific embodiment of the present invention, those skilled in the art will recognize that the present invention can revise in the spirit and scope not exceeding claims.
Claims (6)
1. an extrusion molding mould for online biaxial orientation plastics heavy caliber pipe, is characterized in that: mould comprises pipe embryo forming district, heat preservation zone and two-wayly dilates district; Pipe embryo forming district, heat preservation zone and the two-way district that dilates are linked in sequence.
2. the extrusion molding mould of a kind of online biaxial orientation plastics heavy caliber pipe according to claim 1, it is characterized in that: described pipe embryo forming district is made up of die body, spreader, core support, high temperature resistant adiabatic flexible pipe and joint, handpiece body, mouth mould, coaxial adjustment screw, plug, heater, thermocouple and attachment screw, the passage in described plug and core support is provided with high temperature resistant adiabatic flexible pipe and joint.
3. the extrusion molding mould of a kind of online biaxial orientation plastics heavy caliber pipe according to claim 1 and 2, it is characterized in that: described heat preservation zone is made up of soaking zone plug, soaking zone mouth mould, the flat segments length of described heat preservation zone is 20-100 times that pipe germ wall is thick; Have a through hole in described soaking zone plug, it dilates circular cone along biaxial stretch-formed direction there being one section, described in dilate circular cone and flat segments seamlessly transits with fillet, so that carry out biaxial stretch-formed to tubing; Have in described soaking zone mouth mould and be connected with the liquid of uniform temperature or the passage of gas; Described soaking zone mouth mould and mouth mould have the frustum that cooperatively interacts and bore groove locates, and fixed by attachment screw, there is the first heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, described soaking zone plug and plug have the frustum that cooperatively interacts and bore groove locates, there is the second heat insulating mattress heat insulation between described soaking zone mouth mould and mouth mould, and fixed by attachment screw.
4. the extrusion molding mould of a kind of online biaxial orientation plastics heavy caliber pipe according to claim 3, is characterized in that: described fillet size is R10-50mm.
5. the extrusion molding mould of a kind of online biaxial orientation plastics heavy caliber pipe according to claim 4, it is characterized in that: describedly two-wayly dilate that district dilates die cavity by stretching, dividing plate, thermocouple, heater, vacuum interface form, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, be convenient to carry out segmentation absorption to pipe embryo, be convenient to again the tubing can producing different size when not changing and stretching and dilate die cavity; Round-meshed rubber or elastoplast centered by described dividing plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and thus stretching, it is replaceable to dilate die cavity, to produce the tubing of various different size.
6. the extrusion molding mould of a kind of online biaxial orientation plastics heavy caliber pipe according to claim 5, it is characterized in that: the cone angle that the described two-way stretching dilating district dilates die cavity is 5-70 °, described knuckle is R20-200mm, the described two-way axial tensile rate >=1:1.05 dilating district, the described two-way radial drawing ratio >=1:1.1 dilating district, and the described two-way radial drawing ratio dilating district is greater than axial tensile rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560589.0U CN205033555U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560589.0U CN205033555U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product |
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| Publication Number | Publication Date |
|---|---|
| CN205033555U true CN205033555U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560589.0U Withdrawn - After Issue CN205033555U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online biaxial orientation plastics heavy -calibre tubular product |
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| CN (1) | CN205033555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196514A (en) * | 2015-07-29 | 2015-12-30 | 佛山市日丰企业有限公司 | Extrusion molding mould of online biaxially oriented plastic large diameter pipe |
| CN110621474A (en) * | 2017-03-30 | 2019-12-27 | Sabic环球技术有限责任公司 | Method for modifying and joining oriented pipes |
| CN113043571A (en) * | 2021-04-12 | 2021-06-29 | 临海伟星新型建材有限公司 | Ultra-high molecular weight polyethylene pipe co-extrusion die and method |
-
2015
- 2015-07-29 CN CN201520560589.0U patent/CN205033555U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196514A (en) * | 2015-07-29 | 2015-12-30 | 佛山市日丰企业有限公司 | Extrusion molding mould of online biaxially oriented plastic large diameter pipe |
| CN105196514B (en) * | 2015-07-29 | 2019-01-18 | 日丰企业集团有限公司 | A kind of extrusion molding mould of online biaxial orientation plastics heavy caliber pipe |
| CN110621474A (en) * | 2017-03-30 | 2019-12-27 | Sabic环球技术有限责任公司 | Method for modifying and joining oriented pipes |
| CN110621474B (en) * | 2017-03-30 | 2021-06-29 | Sabic环球技术有限责任公司 | Method for modifying and joining oriented pipes |
| US11396124B2 (en) | 2017-03-30 | 2022-07-26 | Sabic Global Technologies B.V. | Process for modifying and joining oriented pipes |
| CN113043571A (en) * | 2021-04-12 | 2021-06-29 | 临海伟星新型建材有限公司 | Ultra-high molecular weight polyethylene pipe co-extrusion die and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 528000 Guangdong province Foshan City Temple Road No. 16 HSBC Building 8 floor Patentee after: RIFENG ENTERPRISE GROUP CO., LTD. Patentee after: WENZHOU RIFENG TECHNOLOGY CO., LTD. Address before: 528000 Guangdong Province, Foshan city Chancheng District Temple Road No. 16, HSBC Building 8 floor Patentee before: Rifeng Enterprise Co., Ltd., Foshan Patentee before: Foshan market day rich science and technology in enterprise company limited |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |