CN106626443B - A kind of injection pultrusion mold - Google Patents
A kind of injection pultrusion mold Download PDFInfo
- Publication number
- CN106626443B CN106626443B CN201510505141.3A CN201510505141A CN106626443B CN 106626443 B CN106626443 B CN 106626443B CN 201510505141 A CN201510505141 A CN 201510505141A CN 106626443 B CN106626443 B CN 106626443B
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- China
- Prior art keywords
- injection mold
- mold
- injection
- pultrusion
- cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002347 injection Methods 0.000 title claims abstract description 96
- 239000007924 injection Substances 0.000 title claims abstract description 96
- 239000003292 glue Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 239000003822 epoxy resin Substances 0.000 abstract description 15
- 229920000647 polyepoxide Polymers 0.000 abstract description 15
- 229920005989 resin Polymers 0.000 abstract description 15
- 239000011347 resin Substances 0.000 abstract description 15
- 239000000835 fiber Substances 0.000 description 24
- 239000002131 composite material Substances 0.000 description 7
- 239000004593 Epoxy Substances 0.000 description 6
- 238000007596 consolidation process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 210000001520 comb Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- 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
- B29C33/0061—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the material feeding channel
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
It is a kind of injection pultrusion mold and epoxy resin injection pultrusion process belong to epoxy resin injection technical field more particularly to it is a kind of injection pultrusion mold and epoxy resin injection pultrusion process.The present invention provides a kind of process that the high injection pultrusion mold of fibrous mechanical property, resin utilization rate and epoxy resin injection pultrusion can be improved.It includes outer injection mold that the present invention, which injects pultrusion mold, and interior injection mold is provided in outer injection mold, is provided with the first cone-shaped cavity in structural feature between injection mold and outer injection mold；Interior injection mold front is circumferentially connected with outer injection mold, is provided with cross through hole on the circumferential direction interconnecting piece；Opening is provided in the middle part of interior injection mold along its length, open front is cylinder, and opening middle and back is taper, and open front is connected to first cone-shaped cavity front end.
Description
Technical field
The invention belongs to epoxy resin injection technical fields more particularly to a kind of injection pultrusion mold and epoxy resin to infuse
Penetrate the process of pultrusion.
Background technique
Pultrusion molding process is one of main moulding process of composite material, its main feature is that.
One, simple process, efficiently, be suitable for the large-scale production of high performance composites.
Two, pultrusion can best play the humidification of fiber.Fiber is not in most of composite material manufacturing technologies
Continuously, this makes fibre strength loss greatly, even if continuous fiber is wound, due to the bending of fiber, is folded etc. and also to make its intensity
There is certain loss.Such as in spiral winding, the tonicity of fiber plays general only 75%~85%.In pultrusion, fiber is not only
Continuously and sufficiently exhibition is straight, is the ideal form for playing fibre strength.
Three, quality fluctuation is small.Pultrude process high degree of automation, process are few, the time is short, and operating technology and environment are to product
Quality influences all very littles；Therefore use same raw material, pultrusion product quality stability compared with other handicrafts want height.
It is had the advantage that using epoxy resin injection pultrusion die.
1, fiber is thoroughly impregnated, and bubble is few in product produced, and dielectric properties are excellent, and process seal is good.
2, the resin injected is always maintained at identical curing characteristics (resin of no Repeat-heating).
3, the influence to environment and operator is small.
The discharge effect of bubble is not good enough in existing epoxy resin injection technique, and the utilization rate of resin is lower.
Summary of the invention
The present invention addresses the above problem, and providing a kind of can be improved the high injection of fibrous mechanical property, resin utilization rate
Pultrusion mold and the process of epoxy resin injection pultrusion.
To achieve the above object, the present invention adopts the following technical scheme that, it includes outer injection that the present invention, which injects pultrusion mold,
Mould is provided with interior injection mold in outer injection mold, is provided with the first conical cavity in structural feature between injection mold and outer injection mold
Body；Interior injection mold front is circumferentially connected with outer injection mold, is provided with cross through hole on the circumferential direction interconnecting piece；Edge in the middle part of interior injection mold
Length direction is provided with opening, and open front is cylinder, and opening middle and back is taper, open front and first conical cavity
The connection of body front end, opening middle and back are provided with taper injection mold, are the second cone between taper injection mold and opening middle and back side wall
Shape cavity；Taper injection mold rear end is circumferentially connected with outer injection mold, and crosswise yam hole, yarn hole and institute are provided on the circumferential direction interconnecting piece
State the first cone-shaped cavity rear end, the connection of the second cone-shaped cavity rear end；The outer injection mold front end is outlet, outlet and described first
The connection of cone-shaped cavity front end；Vertical tap, tap and first taper are provided in the outer injection mold front end side wall
The connection of cavity front end；The outer injection mold rear portion is provided with vertical hole for injecting glue, and hole for injecting glue and first cone-shaped cavity rear portion connect
It is logical.
As a preferred embodiment, the rear end diameter of cylinder open of the present invention is less than the middle front part of cylinder open
Diameter.
As another preferred embodiment, cooling-part is enclosed on the outside of outer injection mold of the present invention.
As another preferred embodiment, through-hole, yarn hole, tap and hole for injecting glue of the present invention are multiple.
As another preferred embodiment, the rear end side wall of cylinder open of the present invention is provided with bent angle.
Secondly, the number of hole for injecting glue of the present invention is 2-8.
In addition, outer injection mold front end of the present invention uses metal mold.
The process of epoxy resin injection pultrusion of the present invention, includes the following steps.
1) epoxy resin-base injects the first cone-shaped cavity by hole for injecting glue.
2) under the traction of traction device, successively the equally distributed continuous fiber after creel combs is by injection pultrusion
Enter injection pultrusion mould cavity epoxy resin-impregnated with the yarn hole of mold.
3) be impregnated with the fiber of epoxy resin-base successively by the sizing region of injection pultrusion mold, consolidation zone and
Afterwards after consolidation zone, epoxy resin composite material is obtained.
As a preferred embodiment, the hauling speed of continuous fiber of the present invention is 100~1500mm/min.
As another preferred embodiment, in epoxy resin of the present invention the volumn concentration of resin matrix be 20%~
60%, the volumn concentration of continuous fiber reinforcement material is 40%~80%.
Beneficial effect of the present invention.
The first cone-shaped cavity is provided in the present invention between injection mold and outer injection mold, interior injection mold middle part is along its length
It is provided with opening, open front is cylinder, and opening middle and back is taper, and opening middle and back is provided with taper injection mold；Make to soak
Compressing of the fiber by die cavity after stain resin is conducive to that bubble is discharged, reduces the voidage of composite material, improve mechanical property
Energy.Using present invention process, for resin in injection mold cavities internal circulation flow, resin utilization rate is high, and is not exposed in air and can have
Effect avoids the resin system moisture absorption.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 is present invention injection pultrusion mold structure diagram.
In figure, 1 be yarn hole, 2 be outer injection mold, 3 be interior injection mold, 4 be tap, 5 be cooling-part, 6 be hole for injecting glue,
7 be the first cone-shaped cavity, 8 be cylinder open.
Specific embodiment
As shown, it includes outer injection mold 2 that the present invention, which injects pultrusion mold, interior injection mold is provided in outer injection mold 2
3, the first cone-shaped cavity 7 is provided between interior injection mold 3 and outer injection mold 2；Interior 3 front of injection mold circumferential direction and outer 2 phase of injection mold
Even, cross through hole is provided on the circumferential direction interconnecting piece；Interior 3 middle part of injection mold is provided with opening along its length, and open front is
Cylinder, opening middle and back are taper, and open front is connected to 7 front end of the first cone-shaped cavity, and opening middle and back is provided with
Taper injection mold is the second cone-shaped cavity between taper injection mold and opening middle and back side wall；Taper injection mold rear end it is circumferential with
Outer injection mold 2 is connected, and crosswise yam hole 1, yarn hole 1 and 7 rear end of the first cone-shaped cavity, second are provided on the circumferential direction interconnecting piece
The connection of cone-shaped cavity rear end；2 front end of outer injection mold is outlet, and outlet is connected to 7 front end of the first cone-shaped cavity；It is described
Vertical tap 4 is provided in outer 2 front end side wall of injection mold, tap 4 is connected to 7 front end of the first cone-shaped cavity；It is described
Outer 2 rear portion of injection mold is provided with vertical hole for injecting glue 6, and hole for injecting glue 6 is connected to 7 rear portion of the first cone-shaped cavity.
The rear end diameter of the cylinder open 8 is less than the middle front part diameter of cylinder open 8.
Cooling-part 5 is enclosed on the outside of the outer injection mold 2.Cooling-part 5 can be circulation or other are available
In cooling mode.Setting cooling-part 5 can prevent from using because of long-time, and resin rests on overlong time in die cavity and causes admittedly
The phenomenon that change.
The through-hole, yarn hole 1, tap 4 and hole for injecting glue 6 are multiple.
The rear end side wall of the cylinder open 8 is provided with bent angle.
The number of the hole for injecting glue 6 is 2-8.6 quantity of hole for injecting glue can be adjusted according to yarn amount (fibre weight) and resin viscosity
And position.
2 front end of outer injection mold uses metal mold.
The process of epoxy resin injection pultrusion of the present invention, includes the following steps.
1) epoxy resin-base injects the first cone-shaped cavity 7 by hole for injecting glue 6.
2) under the traction of traction device, successively the equally distributed continuous fiber after creel combs is by injection pultrusion
Enter injection pultrusion mould cavity epoxy resin-impregnated with the yarn hole 1 of mold.
3) be impregnated with the fiber of epoxy resin-base successively by the sizing region of injection pultrusion mold, consolidation zone and
Afterwards after consolidation zone, epoxy resin composite material is obtained.
The hauling speed of the continuous fiber is 100~1500mm/min.
The volumn concentration of resin matrix is 20%~60% in the epoxy resin, the volume of continuous fiber reinforcement material
Percentage composition is 40%~80%.
Illustrate the course of work of the invention with reference to the accompanying drawing.
With the advance of fiber, the compressing to the resin on fiber by the smaller diameter end cavity wall of conical cavity is infiltrated, thus
Further wetting fibre, and the gas between fiber gap is oppressed backward, bubble is discharged backward, reduces the gap in composite material
Rate, the fiber for being impregnated with resin moves on, into cylindrical mold cavities, and the successively sizing region through pultrusion die, solid
Final product is obtained after changing region and rear consolidation zone.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of injection pultrusion mold, including outer injection mold, interior injection mold is provided in outer injection mold, it is characterised in that interior note
It penetrates between mould and outer injection mold and is provided with the first cone-shaped cavity；Interior injection mold front is circumferentially connected with outer injection mold, which connects
Cross through hole is provided in socket part；Opening is provided in the middle part of interior injection mold along its length, open front is cylindrical, in opening
Rear portion is taper, and open front is connected to first cone-shaped cavity front end, and opening middle and back is provided with taper injection mold, taper
It is the second cone-shaped cavity between injection mold and opening middle and back side wall；Taper injection mold rear end is circumferentially connected with outer injection mold, should
Crosswise yam hole is provided on circumferential interconnecting piece, yarn hole is connected to first cone-shaped cavity rear end, the second cone-shaped cavity rear end；Institute
Outer injection mold front end is stated as outlet, outlet is connected to first cone-shaped cavity front end；It is set in the outer injection mold front end side wall
It is equipped with vertical tap, tap is connected to first cone-shaped cavity front end；The outer injection mold rear portion is provided with vertical note
Glue hole, hole for injecting glue are connected to first cone-shaped cavity rear portion.
2. a kind of injection pultrusion mold according to claim 1, it is characterised in that the rear end diameter of the cylinder open
Less than the middle front part diameter of cylinder open.
3. a kind of injection pultrusion mold according to claim 1, it is characterised in that be enclosed on the outside of the outer injection mold cold
But component.
4. a kind of injection pultrusion mold according to claim 1, it is characterised in that the through-hole, yarn hole, tap and note
Glue hole is multiple.
5. a kind of injection pultrusion mold according to claim 1, it is characterised in that the rear end side wall of the cylinder open
It is provided with bent angle.
6. a kind of injection pultrusion mold according to claim 1, it is characterised in that the number of the hole for injecting glue is 2-8.
7. a kind of injection pultrusion mold according to claim 1, it is characterised in that the outer injection mold front end uses metal
Mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505141.3A CN106626443B (en) | 2015-08-18 | 2015-08-18 | A kind of injection pultrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505141.3A CN106626443B (en) | 2015-08-18 | 2015-08-18 | A kind of injection pultrusion mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106626443A CN106626443A (en) | 2017-05-10 |
| CN106626443B true CN106626443B (en) | 2018-12-11 |
Family
ID=58815109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510505141.3A Active CN106626443B (en) | 2015-08-18 | 2015-08-18 | A kind of injection pultrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106626443B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179943A (en) * | 2011-03-10 | 2011-09-14 | 哈尔滨玻璃钢研究院 | Injection die for injection and pull-extrusion process and method for preparing resin matrix composite by using same |
| CN102941677A (en) * | 2012-11-02 | 2013-02-27 | 天津市飞荣达科技有限公司 | Preparation method of long fiber reinforced plastic and production mold thereof |
| CN103171154A (en) * | 2013-01-23 | 2013-06-26 | 浙江科成电气有限公司 | Manufacturing method and manufacturing equipment of fiber-reinforced epoxy resin pultrusion rods |
| CN103381654A (en) * | 2013-06-28 | 2013-11-06 | 句容市百事特复合材料有限公司 | Particle material granulating mould capable of forcefully dispersing fibers and strengthening infiltration |
| CN204936241U (en) * | 2015-08-18 | 2016-01-06 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of injection pultrusion mould |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA821103B (en) * | 1981-08-24 | 1983-01-26 | Werner Co Inc R D | Improvements in marking reinforced plastic products |
-
2015
- 2015-08-18 CN CN201510505141.3A patent/CN106626443B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179943A (en) * | 2011-03-10 | 2011-09-14 | 哈尔滨玻璃钢研究院 | Injection die for injection and pull-extrusion process and method for preparing resin matrix composite by using same |
| CN102941677A (en) * | 2012-11-02 | 2013-02-27 | 天津市飞荣达科技有限公司 | Preparation method of long fiber reinforced plastic and production mold thereof |
| CN103171154A (en) * | 2013-01-23 | 2013-06-26 | 浙江科成电气有限公司 | Manufacturing method and manufacturing equipment of fiber-reinforced epoxy resin pultrusion rods |
| CN103381654A (en) * | 2013-06-28 | 2013-11-06 | 句容市百事特复合材料有限公司 | Particle material granulating mould capable of forcefully dispersing fibers and strengthening infiltration |
| CN204936241U (en) * | 2015-08-18 | 2016-01-06 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of injection pultrusion mould |
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| Publication number | Publication date |
|---|---|
| CN106626443A (en) | 2017-05-10 |
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