CN107322844A - A kind of thermoplastic composite plug pultrusion die - Google Patents
A kind of thermoplastic composite plug pultrusion die Download PDFInfo
- Publication number
- CN107322844A CN107322844A CN201610274651.9A CN201610274651A CN107322844A CN 107322844 A CN107322844 A CN 107322844A CN 201610274651 A CN201610274651 A CN 201610274651A CN 107322844 A CN107322844 A CN 107322844A
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- China
- Prior art keywords
- section
- bringing
- cooling
- constant temperature
- temperature zone
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
Abstract
The present invention provides a kind of thermoplastic composite plug pultrusion die, and mould includes the tubular die cavity set on same axis, and die cavity includes bringing-up section, constant temperature zone and the cooling section communicated successively, and bringing-up section periphery is heater.The present invention is using in bringing-up section entrance and cooling section outlet setting gateway angle, and the design can promote to produce pressure in mould, resin is combined with fibre compact；The present invention realizes the pultrusion that thermoplastic nanofibers' fiber mixes yarn with reinforcing fiber, realizes effective combination of reinforcing fiber and thermoplastic matrix；Can continuously it be produced on the production line of fiber reinforced thermolplastic composite material, simple to operate, practical, production cost is low.
Description
Technical field
The present invention relates to a kind of mould, specifically, it is related to a kind of thermoplastic composite plug pultrusion
Mould.
Background technology
With same with thermosetting compound material ratio, continuous fiber reinforced thermoplastic composite material have toughness of material it is good, can two
Secondary processing, facilitates the advantages such as recovery is reprocessed and matrix plastic is wide in variety, choice is big.
Thermoplastic resin is impregnated using fibre glass roving more than domestic and international thermoplastic pultrude process, passes through pultrusion
Mould draws and formed.But, because thermoplastic resin viscosity is larger, it is difficult to be sufficiently impregnated with fibre glass roving
It is difficult to, plastics melting material viscosity is big, the problems such as be unfavorable for processing and forming.
In order to solve, viscosity during thermoplastic plastics shaping is big, asked with the poor, difficult processing of reinforcing fiber wellability etc.
Mixed fiber yarn is made in continuous reinforcing fiber and thermoplastic fibre by topic, people, and thermoplastic is prepared by pultrusion molding process
Property composite.
Pultrusion is a kind of conventional method of forming materials, and this method is primarily adapted for use in thermosetting resin base and is combined
Material；As CN1385296A Chinese invention patents disclose a kind of pultrusion work of suitable glass reinforced plastic pipe
Process, is also a kind of conventional thermosetting resin pultrusion method.At present, thermoplastic composite pultrude process
Industrialized production is less, and the thermoplastic composite pultrusion die being related to still suffers from some shortcomings.
The content of the invention
The present invention provides a kind of thermoplastic composite plug pultrusion die, and the mould realizes thermoplasticity and received
Rice fiber mixes the pultrusion of yarn with reinforcing fiber, realizes effective combination of reinforcing fiber and thermoplastic matrix.
To achieve the above object, the present invention uses following technical scheme：
A kind of thermoplastic composite plug pultrusion die, the mould includes the tubular mould set on same axis
Chamber, the die cavity is made up of bringing-up section, constant temperature zone and cooling section, and the die cavity is from bringing-up section to constant temperature zone and institute
State diameter of the constant temperature zone to cooling section direction to taper into, set opening direction identical at the constant temperature zone two ends
It is tubaeform.
Further, the die cavity internal diameter of the constant temperature zone is equal.
Further, the bringing-up section includes bringing-up section A and bringing-up section B.
Further, the bringing-up section B adjacent with constant temperature zone is equal diameter bringing-up section；Heating chamber arrival end
Angle theta between bringing-up section A and the equal diameter bringing-up section B inwalls1For 1~15 °.
Further, the hop count of the bringing-up section B is more than 2.
Further, the hop count of the bringing-up section B is 2~5.
Further, the die cavity internal diameter of the cooling section to the port of export is tapered into, setting tool in the cooling section
There is the cooling chamber that diameter gradually increases from constant temperature zone to the direction of the port of export.
Further, the cooling medium in the cooling chamber is liquid, and cooling chamber uses liquid cooling medium
Mould is cooled.The entrance of the cooling medium is located at the mould outlet end, and its outlet is provided close to the perseverance
Temperature section one end, the angle theta between the cooling cavity outer wall and inwall2For 5~30 °, the inwall of the cooling chamber with
Angle theta between the inwall of the cooling section3For 1~15 °.
Further, the cooling chamber is used and bringing-up section inlet angle θ1The opposite direction that is open design angle theta2。
Further, the bringing-up section periphery is heater, and the heater uses electrical heating, conduction oil
One or more in heating, steam heating and microwave heating.
Further, the total length of the bringing-up section and constant temperature zone is not more than 100mm, and temperature is set to
100~550 DEG C.
Further, the internal diameter Φ of the mould is 5~15mm.
With immediate prior art ratio, the technical scheme that the present invention is provided has following excellent effect：
1st, the technical scheme bringing-up section A that the present invention is provided is tapered from porch, and cross section reduces therewith,
Inlet angle is 1 °~15 °, and the design can promote to produce pressure in mould, resin is combined with fibre compact；
Bringing-up section B is more than 2 sections, can make corresponding change according to the shapes and sizes of drawing and extruding section bar per segment length；Another root
According to the fusing point of matrix fiber, bringing-up section temperature can be adjusted accordingly between 100~550 DEG C.
2nd, in the technical scheme that the present invention is provided, it is used as the cooling of the pultrusion method of thermoplastic composite
Sizing, can be used cooling section, if also can be without cooling section when less demanding to Surface of profile, and directly use cold
But medium is cooled down；When using cooling section, cooling section can be separately provided, and can be also connected as a single entity with bringing-up section；It is cold
But section is tapered from exit, and cross section reduces therewith, and exit angle is 1 °~15 °, and the design can be entered
One step promotes to produce pressure in mould, resin is combined with fiber；Cooling chamber is using liquid cooling medium to mould
Cooling, cooling medium is injected by port A, and circulates exclusion by port B, and the design can effectively change cold
But medium, cool efficiency high.
3rd, in the technical scheme that the present invention is provided, shape and shape of the size according to article of manufacture of mould cavity
It is designed to corresponding cross sectional shape and size, the apparent size of whole mould with size can do phase according to cross sectional shape
The change answered.
4th, the technical scheme that the present invention is provided is simple in construction, is easy to operation, greatly improves thermoplastic nanofibers fine
The pultrusion efficiency of the continuous reinforcing fiber of peacekeeping.
5th, the technical scheme that the present invention is provided can be continuous on the production line of fiber reinforced thermolplastic composite material
Production, simple to operate, practical, production cost is low.
Brief description of the drawings
, below will be attached to what is used required in embodiment in order to illustrate more clearly of the technical scheme in the present invention
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 thermoplastic composite plugs pultrusion die structural representation；
In figure：1st, bringing-up section A；2nd, bringing-up section B；3rd, constant temperature zone；4th, cooling section；5th, cooling chamber；
6th, port A；7th, port B；8th, heater.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described
Embodiment be only the present invention a part of embodiment, rather than whole embodiment.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained belongs to the model that the present invention is protected
Enclose.
A kind of thermoplastic composite plug pultrusion die, including internal diameter and composite core rod are provided as shown in Figure 1
The equal die cavity of external diameter, die cavity is included outside bringing-up section, constant temperature zone 3 and the cooling section 4 communicated, bringing-up section successively
Enclose for heater 8, the bringing-up section includes bringing-up section A1 and bringing-up section B2.Bringing-up section A1 die cavity internal diameter
Taper into, its inner chamber is tapered from porch, and cross section reduces therewith, the heating adjacent with constant temperature zone 3
Section B2 is equal diameter bringing-up section；Between the bringing-up section A1 and equal diameter bringing-up section B2 inwalls of heating chamber arrival end
Angle theta1For 1~15 °.Bringing-up section B2 hop count is more than 2.The internal diameter Φ of mould is 5~15mm.
The die cavity internal diameter of cooling section 4 is tapered into, and its inner chamber is tapered from exit, and cooling section 4 is provided with cold
But chamber 5, the angle theta between the inwall of cooling chamber 5 and the inwall of cooling section 43For 1~15 °.In cooling chamber 5
Have a cooling medium, cooling medium is passed in and out by the port at the both ends of cooling chamber 5, port include port A6 and
Port B7.Cooling chamber 5 is using the inlet angle θ with bringing-up section1The opposite direction design angle of opening is θ2；
Angle theta between the outer wall of cooling chamber 5 and inwall2For 5~30 °；The total length of bringing-up section and constant temperature zone 3 is not more than
The temperature of 100mm, bringing-up section and constant temperature zone 3 is set to 100~550 DEG C；Heater 8 uses electrical heating, led
One or more in deep fat heating, steam heating and microwave heating.
Embodiment 1
The bringing-up section of mould is combined the heating zone of composition shaping mould, cooling section 4 and cooling with heater 8
Chamber 5 forms the cooling zone of shaping mould to closing, and cooling chamber 5 is cooled using liquid cooling medium to mould, and cooling is situated between
Matter is injected by port A6, and circulates exclusion by port B7.According in mixed fiber yarn used thermoplastic matrix it is molten
The temperature for putting to set bringing-up section and constant temperature zone 3 is 300 DEG C, and mode of heating uses electrical heating.Mixed fiber yarn enters
Bringing-up section A1, bringing-up section A1 inlet angles θ1For 10 °, bringing-up section A1 effect is to connect yarn harness shape
Nearly bringing-up section B2 entry shape, the mixed fiber yarn of heating enters bringing-up section B2 again after being come out from bringing-up section A1
Heating, and by once completing sizing during constant temperature zone 3, finally enter in cooling chamber 5 under the cooling of cooling medium
Enter cooling section 4, the exit angle θ of cooling section 43For 10 °, solidify by cooling section 4, obtain thermoplastic
Property pultrusion product.
By mould be divided into more than two sections can effective gas in extruding and discharging, make extrudate more closely knit.Due to
Melt after matrix fiber heating and lose intensity, the low intensity of melt, shaping mould length is too long of to increase resistance,
Melt can be broken in the presence of tractive force, so the total length of mould bringing-up section and constant temperature zone 3 is
80mm。
Embodiment 2
The bringing-up section of mould is combined the heating zone of composition shaping mould, cooling section 4 and cooling with heater 8
Chamber 5 forms the cooling zone of shaping mould to closing, and cooling chamber 5 is cooled using liquid cooling medium to mould, and cooling is situated between
Matter is injected by port A6, and circulates exclusion by port B7.According in mixed fiber yarn used thermoplastic matrix it is molten
The temperature for putting to set bringing-up section and constant temperature zone 3 is 400 DEG C, and mode of heating uses electrical heating and heat-conducting oil heating.
Mixed fiber yarn enters bringing-up section A1, bringing-up section A1 inlet angles θ1For 5 °, bringing-up section A1 effect is to make yarn
Harness shape is close to bringing-up section B2 entry shape, and the mixed fiber yarn of heating enters after being come out from bringing-up section A1 to be heated
Section B2 is heated again, and by once completing sizing, the finally cooling medium in cooling chamber 5 during constant temperature zone 3
Cooling under enter cooling section 4, the exit angle θ of cooling section 43For 10 °, solidify by cooling section 4,
Obtain thermoplasticity pultrusion product.
By mould be divided into more than two sections can effective gas in extruding and discharging, make extrudate more closely knit.Due to
Melt after matrix fiber heating and lose intensity, the low intensity of melt, shaping mould length is too long of to increase resistance,
Melt can be broken in the presence of tractive force, so the total length of mould bringing-up section and constant temperature zone 3 is
90mm。
Embodiment 3
The bringing-up section of mould is combined the heating zone of composition shaping mould, cooling section 4 and cooling with heater 8
Chamber 5 forms the cooling zone of shaping mould to closing, and cooling chamber 5 is cooled using liquid cooling medium to mould, and cooling is situated between
Matter is injected by port A6, and circulates exclusion by port B7.According in mixed fiber yarn used thermoplastic matrix it is molten
Point sets the temperature of bringing-up section and constant temperature zone 3 as 100 DEG C, and mode of heating heated using steam heating and microwave.
Mixed fiber yarn enters bringing-up section A1, bringing-up section A1 inlet angles θ1For 15 °, bringing-up section A1 effect is to make
Yarn harness shape close to bringing-up section B2 entry shape, the mixed fiber yarn of heating enter after being come out from bringing-up section A1 plus
Hot arc B2 is heated again, and by once completing sizing during constant temperature zone 3, finally cooling is situated between in cooling chamber 5
Enter cooling section 4, the exit angle θ of cooling section 4 under the cooling of matter3For 10 °, occur by cooling section 4 solid
Change, obtain thermoplasticity pultrusion product.
By mould be divided into more than two sections can effective gas in extruding and discharging, make extrudate more closely knit.Due to
Melt after matrix fiber heating and lose intensity, the low intensity of melt, shaping mould length is too long of to increase resistance,
Melt can be broken in the presence of tractive force, so the total length of mould bringing-up section and constant temperature zone 3 is
100mm。
Embodiment 4
The bringing-up section of mould is combined the heating zone of composition shaping mould, cooling section 4 and cooling with heater 8
Chamber 5 forms the cooling zone of shaping mould to closing, and cooling chamber 5 is cooled using liquid cooling medium to mould, and cooling is situated between
Matter is injected by port A6, and circulates exclusion by port B7.According in mixed fiber yarn used thermoplastic matrix it is molten
The temperature for putting to set bringing-up section and constant temperature zone 3 is 200 DEG C, and mode of heating uses electrical heating.Mixed fiber yarn enters
Bringing-up section A1, bringing-up section A1 inlet angles θ1For 5 °, bringing-up section A1 effect is to approach yarn harness shape
Bringing-up section B2 entry shape, the mixed fiber yarn of heating adds again after being come out from bringing-up section A1 into bringing-up section B2
Heat, and by once completing sizing during constant temperature zone 3, finally enter in cooling chamber 5 under the cooling of cooling medium
Cooling section 4, the exit angle θ of cooling section 43For 15 °, solidify by cooling section 4, obtain thermoplasticity
Pultrusion product.
By mould be divided into more than two sections can effective gas in extruding and discharging, make extrudate more closely knit.Due to
Melt after matrix fiber heating and lose intensity, the low intensity of melt, shaping mould length is too long of to increase resistance,
Melt can be broken in the presence of tractive force, so the total length of mould bringing-up section and constant temperature zone 3 is
70mm。
Embodiment 5
The bringing-up section of mould is combined the heating zone of composition shaping mould, cooling section 4 and cooling with heater 8
Chamber 5 forms the cooling zone of shaping mould to closing, and cooling chamber 5 is cooled using liquid cooling medium to mould, and cooling is situated between
Matter is injected by port A6, and circulates exclusion by port B7.According in mixed fiber yarn used thermoplastic matrix it is molten
The temperature for putting to set bringing-up section and constant temperature zone 3 is 500 DEG C, and mode of heating is added using heat-conducting oil heating, steam
Heat and microwave heating.Mixed fiber yarn enters bringing-up section A1, bringing-up section A1 inlet angles θ1For 8 °, bringing-up section
A1 effect is the entry shape for making yarn harness shape close to bringing-up section B2, and the mixed fiber yarn of heating is from bringing-up section A1
Heated again into bringing-up section B2 after out, and by once completing sizing during constant temperature zone 3, finally in cooling
Enter cooling section 4, the exit angle θ of cooling section 4 in chamber 5 under the cooling of cooling medium3For 12 °, through supercooling
But section 4 solidifies, and obtains thermoplasticity pultrusion product.
By mould be divided into more than two sections can effective gas in extruding and discharging, make extrudate more closely knit.Due to
Melt after matrix fiber heating and lose intensity, the low intensity of melt, shaping mould length is too long of to increase resistance,
Melt can be broken in the presence of tractive force, so the total length of mould bringing-up section and constant temperature zone 3 is
85mm。
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvements made etc., in pending right of the invention
Within the scope of claimed.
Claims (10)
1. a kind of thermoplastic composite plug pultrusion die, the mould includes the tubular die cavity set on same axis, it is special
Levy and be, the die cavity is made up of bringing-up section, constant temperature zone (3) and cooling section (4), and the die cavity is from bringing-up section to constant temperature zone
(3) taper into, set at the constant temperature zone (3) two ends with the diameter on the constant temperature zone (3) to cooling section (4) direction
Put direction identical horn opening.
2. pultrusion die as claimed in claim 1, it is characterised in that the bringing-up section include bringing-up section A (1) and
Bringing-up section B (2).
3. pultrusion die as claimed in claim 2, it is characterised in that the bringing-up section B adjacent with constant temperature zone (3)
(2) it is equal diameter bringing-up section；Between the bringing-up section A (1) of heating chamber arrival end and equal diameter bringing-up section B (2) inwall
Angle theta1For 1~15 °.
4. pultrusion die as claimed in claim 3, it is characterised in that the hop count of the bringing-up section B (2) is more than 2.
5. pultrusion die as claimed in claim 1, it is characterised in that the interior setting tool of the cooling section (4) have diameter from
The cooling chamber (5) gradually increased on constant temperature zone (3) to the direction of the port of export.
6. pultrusion die as claimed in claim 5, it is characterised in that the cooling medium in the cooling chamber (5) is
Liquid, the entrance of the cooling medium is located at the mould outlet end, and its outlet is provided close to the constant temperature zone (3) one end,
Angle theta of the cooling chamber (5) between outer wall and inwall2For 5~30 °, inwall and the cooling section (4) of the cooling chamber (5)
Inwall between angle theta3For 1~15 °.
7. pultrusion die as claimed in claim 6, it is characterised in that the cooling chamber (5) uses to enter with bringing-up section
Mouth angle, θ1The opposite direction that is open design angle theta2。
8. pultrusion die as claimed in claim 1, it is characterised in that the bringing-up section periphery is heater (8),
The heater (8) is using the one or more in electrical heating, heat-conducting oil heating, steam heating and microwave heating.
9. pultrusion die as claimed in claim 1, it is characterised in that the bringing-up section and the overall length of constant temperature zone (3)
Degree is not more than 100mm, and temperature is set to 100~550 DEG C.
10. pultrusion die as claimed in claim 1, it is characterised in that the internal diameter Φ of the mould is 5~15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274651.9A CN107322844A (en) | 2016-04-28 | 2016-04-28 | A kind of thermoplastic composite plug pultrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274651.9A CN107322844A (en) | 2016-04-28 | 2016-04-28 | A kind of thermoplastic composite plug pultrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107322844A true CN107322844A (en) | 2017-11-07 |
Family
ID=60193337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610274651.9A Pending CN107322844A (en) | 2016-04-28 | 2016-04-28 | A kind of thermoplastic composite plug pultrusion die |
Country Status (1)
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