CN204367435U - There is the fibre reinforced composites pultrusion apparatus of protective device - Google Patents
There is the fibre reinforced composites pultrusion apparatus of protective device Download PDFInfo
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- CN204367435U CN204367435U CN201420679385.4U CN201420679385U CN204367435U CN 204367435 U CN204367435 U CN 204367435U CN 201420679385 U CN201420679385 U CN 201420679385U CN 204367435 U CN204367435 U CN 204367435U
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Abstract
The utility model relates to a kind of fibre reinforced composites pultrusion apparatus with protective device; on fibre reinforced composites pultrusion equipment fiber movement direction; before being positioned at mould or gel-injection mould entrance; one segment protect gas positive pressure region is set, in fiber and in this area of space easily and matrix resin composition that bad side reaction occurs discharged from fiber entry by the protective gas continued outwardly.The utility model device not only purifies fortifying fibre and protects; simultaneously for the forming process of matrix resin impregnation, gel, solidification provides the ecotopia of an isolated outside air, final protection fibre reinforced composites pultrusion process does not affect by the harmful components in environment and fortifying fibre.
Description
Technical field
The utility model relates to a kind of fibre reinforced composites pultrusion apparatus with protective device.
Background technology
Pultrusion molding process is one of main moulding process of composite, it is by the continuous fiber of impregnating resin glue, band, cloth or felt etc., by mould extruding, solidification under tractive force effect, a kind of moulding process of the fiber reinforced composite section bars that successive production length is not limit.Be suitable for the section bar producing various forms cross section, as pipe, rod, solid profile (I shape, grooved, square) and hollow section (door-window section bar, blade) etc., be characterized in: one, technique is simple, efficient, is suitable for the large-scale production of high performance composites.Two, the humidification of fiber can be played best, and there is the advantages such as product properties is stable, fiber content is high, cost is lower, be widely used.
But, in the pultruded product forming process using some particular substrate resin, the H that air, fortifying fibre self bring
2o, CO
2, O
2deng Cheng branch brings a lot of negative effect to forming process, affects product properties and processing performance.Such as, with hypergolic polyurethane resin (isocyanates and polyalcohol are for main component) in the pultrude process process of matrix resin, the moisture contained in air and fortifying fibre, can react with the isocyanates (-NCO) in polyurethane resin, generate Solid urea and produce CO
2gas.Along with the carrying out of this reaction, the performance of composite product not only can be affected, and the gathering of Solid urea and CO
2the expansion of gas also can block pultrusion die, causes production process to interrupt.Present case is, be difficult to production heavy in section gauge articles, and namely small cross-sectional size product needed the cleaning mould that stops every 1-3 days, this is using hypergolic polyurethane resin as matrix resin for pultrusion molding process, is difficult to realize the industrial reason of serialization.
In order to solve the problem, it is injection impregnation mode etc. that the industry generally adopts to raw material dehumidifying, to production environment dehumidifying, by traditional glue drill traverse glue patten's design, generates the reaction probabilities of Solid urea to reduce isocyanates (-NCO) in resin.But the investment of these methods is large, cost is high, and the problem of blocking mould, broken yarn can not be solved at all.
Utility model content
The purpose of this utility model is: the device of the fibre reinforced composites pultrusion apparatus one, providing one or more to have protective device, realizes protecting fibre reinforced composites pultrusion process.
The technical scheme realizing the utility model object is:
Core of the present utility model is the die entrance front end in pultrusion, increases a Pneumatic sealed device, utilizes the gas positive pressure of this device, easy in environment and fortifying fibre and resin is occurred the composition that unfavorable side reaction affects, is rejected to outside shaping system.Concrete method is: on fibre reinforced composites pultrusion equipment fiber movement direction, is positioned at mould (mould or gel-injection mould) front, arranges a segment protect gas positive pressure region.When fiber enters this region from fiber entry; pass into protective gas and maintain the barotropic state that gas is protected in this region; in fiber and in this area of space easily and resin adhesive liquid composition protected gas that bad side reaction occurs discharge from fiber entry; thus solve some fiber reinforcement particular substrate resin composite materials when pultrusion, the H in environment, fortifying fibre
2o, CO
2, O
2deng composition, there is the problem of unfavorable side reaction in easy and resin, to improve quality of item and to realize the industrial object of serialization.
The concrete methods of realizing of protective gas barotropic field is the Pneumatic sealed device with fiber entry, and this locking device connects protective gas source; When adopting injecting glue mode, locking device and gel-injection mould fix through connection; When adopting impregnation mode, through connection fixed by this locking device and mould, and now gumming device is positioned at locking device inside.
Protective gas described in the utility model includes but not limited to nitrogen, carbon dioxide, dry air, the inert gas of normal temperature, cooling or heating.Such as, take hypergolic polyurethane resin as the pultrude process of matrix, should choose heating, moisture free dry air or nitrogen.The dry gas heated, effectively can remove the moisture on fiber; Dry gas moisture-free, can prevent the moisture in environment and isocyanates (NCO) from reacting; To ensure that pultrude process normally carries out continuously.
A kind of fibre reinforced composites pultrusion apparatus with protective device; comprise creel, preforming mould, gel-injection mould, glue-injection machine, mould, draw-gear, cutter sweep; also there is locking device before gel-injection mould entrance and with it by one or more protection sources of the gas that pipeline connects; described locking device is cavity structure; it fixes through connection with gel-injection mould by flange or screw thread; and by sealing ring, band, gasket seal, bonding, Type of Welding sealing, seam crossing is air tight.On described locking device, be positioned at creel side and have multiple fiber entry, fiber from then on entrance enters.
Another kind has the fibre reinforced composites pultrusion apparatus of protective device, comprise creel, preforming mould, gumming device, mould, draw-gear, cutter sweep, it also had locking device and with it by one or more protection sources of the gas that pipeline connects before mould, described locking device is cavity structure, it fixes through connection with mould by flange or screw thread, and by form sealings such as sealing ring, band, gasket seals, seam crossing is air tight; Preforming mould and gumming device are included in locking device inside.Described locking device is positioned at creel side and has multiple fiber entry, fiber from then on entrance enters.Described gumming device can be steeping vat or other gumming devices.Locking device cross section described in the utility model is circle, rectangle, polygonal cylindrical member or the tower structure with frame one.
Overflow the fiber entry of protective gas on the left of locking device in actual production process, form the continuous flow to closed system flows outside.Under the lasting flowing of protective gas, can form the enclosure space of an isolated environment air, protection pultrusion process is not affected by environment.In addition, the continuous flow that protective gas is formed by harmful components such as moisture subsidiary on fortifying fibre, can also be rejected to outside system.
The good effect that the utility model has:
(1) employing positive pressure protection gas device of the present utility model forms a lasting protective gas stream; one section of enclosure space is formed from fiber entry to die entrance; not only fortifying fibre purified and protect; simultaneously for the forming process of matrix resin impregnation, gel, solidification provides the ecotopia of an isolated outside air, final protection pultrusion composite materials forming process does not affect by the harmful components in environment and fortifying fibre.
(2) pultrusion protective device of the present utility model is simple and practical; effectively achieve the guard method to fibre reinforced composites pultrusion process; after adopting the utility model device; under the prerequisite increasing little additional investment; can realize continuous industrial production, continuous seepage does not block up mould, not broken yarn in 1 month, does not shut down.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment 1 device; Fig. 2 is the structural representation of the utility model embodiment 2 device.
Wherein, 1 creel, 2 preforming moulds, 3 gel-injection moulds, 4 moulds, 5 draw-gears, 6 cutter sweeps, 7 glue-injection machines, 8 locking devices, 9 protection gas sources of the gas, 10 gumming devices.
Detailed description of the invention
(embodiment 1)
See Fig. 1, a kind of fibre reinforced composites pultrusion apparatus adopting pouring-in impregnation mode, fiber passes from creel 1, is drawn by draw-gear 5, through the gel-injection mould 3 of preforming mould 2, connection glue injection machine 7, by mould 4 after impregnation.Mould 4 has heater, and resin, through the out-of-date curing molding that is heated, finally by cutter sweep 6 fixed length cutting, forms product.
Before gel-injection mould 3, be provided with locking device 8, it is the truncated cone-shaped stainless steel cylinder with fiber entry, fixes through connection with gel-injection mould 3 by flange, and adopts silicone rubber O-ring to seal.Locking device 8 is connected with protection gas source of the gas 9 by pipeline.The resin that the present embodiment uses is hypergolic polyurethane resin, and the protective gas of employing is heated nitrogen.When equipment runs, protective gas continues to sentence certain pressure output from source of the gas; keep locking device 8 inside under the lasting flowing of protective gas; form the anhydrous enclosure space of an isolated environment air, the infiltration of protection pultrusion process polyurethane resin, gel, solidification are not affected by environment.Heat-treated nitrogen can also remove the moisture that fiber comprises, the isocyanate reaction in anti-sealing and polyurethane resin.
(embodiment 2)
See Fig. 2, a kind of fibre reinforced composites pultrusion apparatus adopting steeping vat impregnation, fiber passes from creel 1, is drawn by draw-gear 5, through gumming device 10, preforming mould 2, by mould 4 after impregnation.Gumming device 10 is lower immersion glue groove.Mould 4 has heater, and resin, through the out-of-date curing molding that is heated, finally by cutter sweep 6 fixed length cutting, forms product.
Before mould 4, be provided with locking device 8, it is the square-section stainless steel cylinder with fiber entry, fixes through connection with mould 4 by flange, and adopts teflon gasket to seal.Locking device 8 is connected with protection gas source of the gas 9 by pipeline.It is inner that gumming device 10, preforming mould 2 are included in locking device 8.The resin that the present embodiment uses is hypergolic polyurethane resin, and the protective gas of employing is heated drying air, and its dew point is lower than-70 DEG C.When equipment runs, protective gas continues to sentence certain pressure output from source of the gas; keep locking device 8 inside under the lasting flowing of protective gas; form the anhydrous enclosure space of an isolated environment air, the infiltration of protection pultrusion process polyurethane resin, gel, solidification are not affected by environment.Heated drying air can also remove the moisture that fiber comprises, the isocyanate reaction in anti-sealing and polyurethane resin.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. there is a fibre reinforced composites pultrusion apparatus for protective device, comprise creel (1), preforming mould (2), gel-injection mould (3), mould (4), draw-gear (5), cutter sweep (6), glue-injection machine (7); It is characterized in that: also there is locking device (8) before gel-injection mould (3) entrance and with it by one or more protection sources of the gas (9) that pipeline connects; Described locking device (8) is cavity structure, and it fixes through connection with gel-injection mould (3), and junction encapsulation process is air tight; Described locking device (8) is gone up, be positioned at creel (1) side has multiple fiber entry.
2. the fibre reinforced composites pultrusion apparatus with protective device according to claim 1; it is characterized in that: described locking device (8) is fixedly connected with by flange or screw thread with gel-injection mould (3), and by sealing ring, band, gasket seal, bonding, Type of Welding sealing.
3. the fibre reinforced composites pultrusion apparatus with protective device according to claim 1 and 2, is characterized in that: described locking device (8) for cross section be circular, the cylindrical member of rectangle or the tower structure with frame one.
4. there is a fibre reinforced composites pultrusion apparatus for protective device, comprise creel (1), preforming mould (2), gumming device (10), mould (4), draw-gear (5), cutter sweep (6); It is characterized in that: also there is locking device (8) and with it by one or more protection sources of the gas (9) that pipeline connects before the mould (4); Described locking device (8) is cavity structure, and preforming mould (2) and gumming device (3) are included by it; Described locking device (8) is positioned at creel (1) side and there is multiple fiber entry.
5. the fibre reinforced composites pultrusion apparatus with protective device according to claim 4, is characterized in that: described locking device (8) for cross section be circular, the cylindrical member of rectangle or the tower structure with frame one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679385.4U CN204367435U (en) | 2014-11-13 | 2014-11-13 | There is the fibre reinforced composites pultrusion apparatus of protective device |
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| CN201420679385.4U CN204367435U (en) | 2014-11-13 | 2014-11-13 | There is the fibre reinforced composites pultrusion apparatus of protective device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478303A (en) * | 2015-12-25 | 2016-04-13 | 佛山市启达研磨器材科技有限公司 | Preliminary forming equipment for chuck flap wheel production and forming process of preliminary forming equipment |
| CN109501322A (en) * | 2017-09-14 | 2019-03-22 | 洛阳双瑞橡塑科技有限公司 | A kind of fiber reinforcement composite sleeper and preparation method thereof |
| CN110126309A (en) * | 2019-06-21 | 2019-08-16 | 南京聚发新材料有限公司 | A kind of fibre reinforced composites pultrusion apparatus and its pultrusion molding process |
-
2014
- 2014-11-13 CN CN201420679385.4U patent/CN204367435U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478303A (en) * | 2015-12-25 | 2016-04-13 | 佛山市启达研磨器材科技有限公司 | Preliminary forming equipment for chuck flap wheel production and forming process of preliminary forming equipment |
| CN109501322A (en) * | 2017-09-14 | 2019-03-22 | 洛阳双瑞橡塑科技有限公司 | A kind of fiber reinforcement composite sleeper and preparation method thereof |
| CN110126309A (en) * | 2019-06-21 | 2019-08-16 | 南京聚发新材料有限公司 | A kind of fibre reinforced composites pultrusion apparatus and its pultrusion molding process |
| CN110126309B (en) * | 2019-06-21 | 2021-10-08 | 南京聚发新材料有限公司 | Pultrusion device and pultrusion process for fiber reinforced composite material |
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