CN204977370U - Extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics - Google Patents
Extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics Download PDFInfo
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- CN204977370U CN204977370U CN201520560627.2U CN201520560627U CN204977370U CN 204977370 U CN204977370 U CN 204977370U CN 201520560627 U CN201520560627 U CN 201520560627U CN 204977370 U CN204977370 U CN 204977370U
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- district
- dilates
- mouth mould
- mould
- soaking zone
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- 239000004033 plastic Substances 0.000 title claims abstract description 23
- 229920003023 plastic Polymers 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 title claims abstract description 15
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000002791 soaking Methods 0.000 claims description 36
- 230000000916 dilatatory effect Effects 0.000 claims description 17
- 238000004321 preservation Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000007493 shaping process Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics, 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 is including die body, reposition of redundant personnel awl, mandrel support, 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. Axial, radial tensile is carried out to the small -bore tubular product of plastics (the plug diameter is lighter than 20mm) to the invention, improves the physics mechanical properties of plastics tubular product, has improved its intensity and toughness greatly, has improved the axiality of tubular product and the homogeneity of wall thickness degree, and has reduced the consumption and the reduction in production cost of material by a wide margin.
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 minor 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 small dimension, because diameter of mandrel is little, length is long, and there is a larger head, thus plug is easily out of shape, make the axiality difference of tubing and pipe thickness inhomogeneities seriously, and not easily adjust, when diameter is less, the method cannot be implemented at all.
Summary of the invention
The invention provides a kind of extrusion molding mould of online biaxial orientation plastics minor caliber pipe, the technical problem seriously or at all cannot implemented etc. with the axiality difference and pipe thickness inhomogeneities that solve the minor caliber pipe that prior art exists.
The present invention carries out axis, radial drawing to plastics minor caliber pipe (diameter of mandrel is less than 20mm), improve the physical and mechanical property of plastic pipe, substantially increase its intensity and toughness, improve the axiality of tubing and the uniformity of pipe thickness, and considerably reduce the consumption of material and reduce production cost.
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 minor caliber pipe, 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 comprises die body, spreader, core support, 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.
Described heat preservation zone comprises soaking zone plug, soaking zone mouth mould, and the plug length of described heat preservation zone is 25-120 times that pipe germ wall is thick, has the passage of logical liquid or gas in described soaking zone mouth mould; Have to 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, the first heat insulating mattress is provided with heat insulation between described soaking zone mouth mould and mouth mould, the second heat insulating mattress is also provided with heat insulation between described soaking zone mouth mould and mouth mould, and be directly threaded connection fixing, in order to ensure its axiality, after being threaded connection between described soaking zone mouth mould and mouth mould, carry out overall fine finishining again.
The described two-way district that dilates comprises stretching and dilates die cavity, elasticity orifice plate, thermocouple, heater, vacuum interface, described stretching dilates die cavity and is that there is flat segments at two ends and centre is the hollow pipeline of a tapering, smooth and easy in order to ensure that tubing dilates, with round-corner transition between described flat segments and hollow pipeline, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, is convenient to carry out segmentation absorption and production control to pipe embryo.
Round-meshed rubber or elastoplast centered by described elasticity orifice plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and stretches and dilate die cavity and have replaceable structure, to produce the tubing of various different size.
The cone angle that the described two-way stretching dilating district dilates die cavity is 10-70 °, knuckle is R10-100mm, 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 two-way radial drawing ratio dilating district is greater than axial tensile rate.
Operation principle of the present invention is as follows: 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, be connected with liquid or the gas of uniform temperature in soaking zone mouth mould, the temperature of tubing can be made to be cooled to the temperature of applicable biaxial orientation from melt temperature, what then enter two-wayly dilates district.Stretch dilate die cavity surround by the heater of accurate temperature controlling, under making tubing remain on the temperature of applicable biaxial orientation.Then, under the tractive force and vacuum adsorption force effect of hauling machine, pipe is dilated die cavity by the stretching being forced through taper, realizes the biaxial orientation under uniform temperature and pulling speed.
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 continuous orientation of tubing; 2) mould chooses suitable axial tensile rate and radial drawing ratio, can obtain high level orientation and the smooth tubing of smooth surface; 3) mould structure advantages of simple, decreases the length of plug, improves the axiality of tubing and the uniformity of pipe thickness; 4) when changing stretching and dilating die cavity, also can produce the tubing of not planting specification, can continuous seepage be realized, save production cost.
Beneficial effect:
1, according to different plastic material, choose suitable dilating angle and dilate knuckle, what can ensure pipe embryo carries out axis and radial drawing smootherly;
2, distinguish section at expansion shaped insertion-type and be provided with the vacuum plant matched, 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, produce the tubing of excellent mechanical performances;
4, choose suitable axial tensile rate and radial drawing ratio, high level biaxial orientation and the smooth tubing of smooth surface 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, also can produce the tubing of not planting specification, saving production cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in detail.
Fig. 1 is biaxial orientation plastics minor caliber pipe extrusion molding mould structural representation
1, die body; 2, spreader; 3, core support; 4, heater; 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, elasticity orifice 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, heater; 26, thermocouple.
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 minor caliber pipe, 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 comprises die body, spreader, core support, 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.
Described heat preservation zone comprises soaking zone plug, soaking zone mouth mould, and the plug length of described heat preservation zone is 25-120 times that pipe germ wall is thick, has the passage of logical liquid or gas in described soaking zone mouth mould; Have to 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, the first heat insulating mattress is provided with heat insulation between described soaking zone mouth mould and mouth mould, the second heat insulating mattress is also provided with heat insulation between described soaking zone mouth mould and mouth mould, and be directly threaded connection fixing, in order to ensure its axiality, after being threaded connection between described soaking zone mouth mould and mouth mould, carry out overall fine finishining again.
The described two-way district that dilates comprises stretching and dilates die cavity, elasticity orifice plate, thermocouple, heater, vacuum interface, described stretching dilates die cavity and is that there is flat segments at two ends and centre is the hollow pipeline of a tapering, smooth and easy in order to ensure that tubing dilates, with round-corner transition between described flat segments and hollow pipeline, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, is convenient to carry out segmentation absorption and production control to pipe embryo.
Round-meshed rubber or elastoplast centered by described elasticity orifice plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and stretches and dilate die cavity and have replaceable structure, to produce the tubing of various different size.
The cone angle that the described two-way stretching dilating district dilates die cavity is 10-70 °, knuckle is R10-100mm, 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 two-way radial drawing ratio dilating district is greater than axial tensile rate.
Preferred embodiment:
A kind of 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, heater 4, handpiece body 5, mouth mould 6, coaxial adjustment screw 7, plug 8, heater 20, heater 25; The compositions such as thermocouple 21, thermocouple 22, thermocouple 26, attachment screw 23, attachment screw 24; Heat preservation zone comprises the compositions such as soaking zone plug 18, soaking zone mouth mould 11 and thermocouple 12, the flat segments length of heat preservation zone is thick 50 times of pipe germ wall, 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 R10mm, 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, be directly threaded connection fixing; The two-way district that dilates comprises that stretching dilates die cavity 13, thermocouple 14, elasticity orifice 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; The cone angle that the two-way stretching dilating district dilates die cavity is 40 °, and knuckle is R80mm, and the two-way axial tensile rate dilating district is 1.2, and the two-way radial drawing ratio dilating district is 1.5.
It is replaceable that stretching dilates die cavity, to produce the tubing of various different size, improves production efficiency and reduce production cost.
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 minor caliber pipe, is characterized in that: comprise pipe embryo forming district, heat preservation zone and two-wayly dilate district; Pipe embryo forming district, heat preservation zone and the two-way district that dilates are linked in sequence.
2. mould according to claim 1, is characterized in that: pipe embryo forming district comprises die body, spreader, core support, 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 minor caliber pipe according to claim 2, it is characterized in that: described heat preservation zone comprises soaking zone plug, soaking zone mouth mould, the plug length of described heat preservation zone be pipe germ wall thick 25 ?120 times, have the passage of logical liquid or gas in described soaking zone mouth mould; Have to 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, the first heat insulating mattress is provided with heat insulation between described soaking zone mouth mould and mouth mould, the second heat insulating mattress is also provided with heat insulation between described soaking zone mouth mould and mouth mould, and be directly threaded connection fixing, in order to ensure its axiality, after being threaded connection between described soaking zone mouth mould and mouth mould, carry out overall fine finishining again.
4. the extrusion molding mould of a kind of online biaxial orientation plastics minor caliber pipe according to claim 3, it is characterized in that: the described two-way district that dilates comprises stretching and dilates die cavity, elasticity orifice plate, thermocouple, heater, vacuum interface, described stretching dilates die cavity and is that there is flat segments at two ends and centre is the hollow pipeline of a tapering, smooth and easy in order to ensure that tubing dilates, with round-corner transition between described flat segments and hollow pipeline, described stretching dilates segmentation in die cavity and is provided with multiple separate vacuum passage, is convenient to carry out segmentation absorption and production control to pipe embryo.
5. the extrusion molding mould of a kind of online biaxial orientation plastics minor caliber pipe according to claim 4, is characterized in that: round-meshed rubber or elastoplast centered by described elasticity orifice plate, for when vacuumizing to the obstruct of air; Described stretching dilates die cavity and soaking zone mouth mould is threaded connection, and stretches and dilate die cavity and have replaceable structure, to produce the tubing of various different size.
6. the extrusion molding mould of a kind of online biaxial orientation plastics minor caliber pipe according to claim 4 or 5, it is characterized in that: the cone angle that the described two-way stretching dilating district dilates die cavity be 10 ?70 °, knuckle be R10 ?100mm, 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 two-way radial drawing ratio dilating district is greater than axial tensile rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560627.2U CN204977370U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520560627.2U CN204977370U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics |
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| Publication Number | Publication Date |
|---|---|
| CN204977370U true CN204977370U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520560627.2U Expired - Fee Related CN204977370U (en) | 2015-07-29 | 2015-07-29 | Extrusion moulding mould of online small -bore tubular product of biaxial orientation plastics |
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| CN (1) | CN204977370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172097A (en) * | 2015-07-29 | 2015-12-23 | 佛山市日丰企业有限公司 | Online biaxial orientation extrusion mold for plastic small-caliber tube |
-
2015
- 2015-07-29 CN CN201520560627.2U patent/CN204977370U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172097A (en) * | 2015-07-29 | 2015-12-23 | 佛山市日丰企业有限公司 | Online biaxial orientation extrusion mold for plastic small-caliber tube |
| CN105172097B (en) * | 2015-07-29 | 2019-05-07 | 日丰企业集团有限公司 | A kind of extrusion molding mould of online biaxial orientation plastics minor caliber pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: RIFENG TECHNOLOGY Co.,Ltd. Address before: 528000 Guangdong Province, Foshan city Chancheng District Temple Road No. 16, HSBC Building 8 floor Patentee before: Foshan Rifeng Enterprise Co.,Ltd. Patentee before: FOSHAN RIFENG ENTERPRISE SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210729 |