CN101913255A - Pultrusion method and equipment for thermoplastic composite material of continuous fiber - Google Patents
Pultrusion method and equipment for thermoplastic composite material of continuous fiber Download PDFInfo
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- CN101913255A CN101913255A CN 201010279407 CN201010279407A CN101913255A CN 101913255 A CN101913255 A CN 101913255A CN 201010279407 CN201010279407 CN 201010279407 CN 201010279407 A CN201010279407 A CN 201010279407A CN 101913255 A CN101913255 A CN 101913255A
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Abstract
The invention relates to a pultrusion method for a thermoplastic composite material of a continuous fiber, which is characterized by comprising the following steps of: firstly, after leading a continuous fiber made of a thermoplastic composite material out of a constant tension creel (1) to pass through a yarn collecting plate (2), delivering the continuous fiber into a dehumidifier (3) for dehumidifying and controlling the water content of the continuous fiber below 3 percent; secondly, delivering the dehumidified continuous fiber into a soaking device (5) for soaking; thirdly, controlling the heating temperature of a moulding die to be 150-300 DEG C to obtain a needed section bar; and fourthly, after delivering the moulded section bar into a cooling tank (7) for cooling, delivering the moulded section bar into a synchronous automatic cutting machine under the traction of a tractor (8) for cutting and packaging according to needed size. The invention also discloses complete equipment which comprises the constant tension creel (1), the yarn collecting plate (2), the dehumidifier (3), the soaking device (5), the moulding die (6), the cooling tank (7), the tractor (8) and the cutting machine (9). The invention has simple method, low equipment cost and high production efficiency.
Description
Technical field
The present invention relates to a kind of composite continuous forming method and equipment, the continuous pultrusion method and the equipment of especially a kind of thermoplastic composite of continuous fiber (as strengthening polystyrene, RPP, polyvinyl chloride, polyphenylene sulfide etc.), specifically a kind of pultrusion method of thermoplastic composite of continuous fiber and equipment.
Background technology
Since the eighties in last century, thermoplastic resin and composite thereof have caused the very big interest of people, and have obtained very big progress.Thermoplastic composite has avoided the intrinsic environment friendly of same with thermosetting compound material poor, and the process-cycle is long, is difficult to reclaim, and has stronger pliability and shock resistance, good survivability and damping capacity.Thermoplastic composite can reuse.The various cross sections of the thermoplasticity of continuous fiber composite material (as strengthening polystyrene, RPP, polyvinyl chloride, polyphenylene sulfide etc.) no fiber of ratio or chopped strand thermoplastic, same with thermosetting compound material, iron and steel, aluminium have more impact resistance, be characterized in that intensity is big, rigidity is high, creep is little, heat endurance is high, linear expansion coefficient is little, easy damaged is not ground part, damping capacity is good, even if under high temperature or very harsh condition, its mechanical performance still remains intact harmless.Present this technological process and equipment application prospect are very extensive, are mainly used in air material, aircraft material, auto parts machinery, electric power facility, sports equipment etc.
Existing is using thermosetting resin that glass fibre, carbon fiber the increase pultrude process as matrix by the known traditional handicraft method of people, can't directly apply to owing to there is following shortcoming in the thermoplastic composite processing of continuous fiber:
One, product integer again is because molecular resin is crosslinked irreversible;
Two, must use harmful chemicals solvent, such as styrene, methyldiphenylamine etc.;
Three, can not obtain best fiber/resin volume ratio, can not reach that maximum mechanical strength promptly compresses, stretching, bending strength, product surface be coarse.
Therefore, develop corresponding forming method according to the characteristics of continuous fiber thermoplastic composite and equipment is to give full play to the key that material behavior is applied.
Summary of the invention
The objective of the invention is to invent a kind of pultrusion method and equipment of thermoplastic composite of continuous fiber at the characteristics of thermoplastic's composite of continuous fiber.
One of technical scheme of the present invention is:
A kind of pultrusion method of thermoplastic composite of continuous fiber is characterized in that it may further comprise the steps:
At first, the thermoplastic composite continuous fiber drawn to pass from permanent tension force creel 1 send into moisture separator 3 behind the collection yarn plate 2 and dry, the moisture content of control continuous fiber is below 3%;
Secondly, will send in the infuser 5 through the continuous fiber that dries and flood; This infuser 5 mainly is made up of shell 501, adjustment axle 502, fiber spreader 503 and resin content controller 504, shell 501 is provided with the fiber perforated plate 505 that penetrates for the continuous fiber after drying near an end of moisture separator 3, the other end of shell 501 is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell 501 inner chambers are near the tapered structure of an end of fiber fairlead; Described fiber spreader 503 and resin content controller 504 are fixedly mounted on to be adjusted on the axle 502, and resin content controller 505 is arranged in the pyramidal structure of shell 510 inner chambers, an end of adjusting axle 502 passes through the screw thread spinning on fiber perforated plate 505, the other end of adjusting axle 502 is bearing on the shell 501, shell 501 is provided with resin spout 506, and resin spout 506 is connected with the discharging opening of twin-screw mixer machine 4; Described continuous fiber from the fiber perforated plate 505 of infuser 5 one ends enter infuser 5 inner backs under the guiding of the fiber spreader 503 of infuser inside and resin content controller 504, be distributed in fully flood the infuser shell 501 and remove unnecessary resin after from the fiber fairlead of shell 501 other ends, draw and enter moulding in the product moulding mould 6;
The 3rd, the heating-up temperature of control mould obtains required section bar at 150 ℃ ~ 300 ℃ (the actual temp value can be determined by the thermoplastic performance);
The 4th, make the section bar cooling and shaping in water cooling tank 7 after the moulding, under the traction of hauling machine 8, enter then in the synchronous automatic gas cutting machine and get final product by required size cutting, packing.
The resin temperature of described dipping usefulness is by 4 controls of twin-screw mixer machine, and its temperature value is 150 ℃ ~ 300 ℃ (being determined by the thermoplastic performance).
On the described adjustment axle 502 three discoid fiber spreaders 503 are installed at least, wherein have at least be processed with on the fiber spreader 503 with fiber perforated plate 505 on the hole of axially entrying that is complementary of hole count, described continuous fiber under the effect of all fiber spreaders 503 in infuser 5 curved shape arrange, force dipping to be flooded fully.
Described resin content controller 504 is slab construction or spherical cap structure, adjust the screw thread of adjustment axle 502 1 ends that resin content controller 504 is installed, can adjust the position of resin content controller 504 in shell 501, thereby the gap between control slab construction or spherical cap structure and the pyramidal structure reaches the purpose of controlling resin content on the continuous fiber.
The fiber exit of described infuser 5 connects mould, and the forming temperature of mould is 150 ℃ ~ 300 ℃ (being determined by the thermoplastic performance).
Two of technical scheme of the present invention is:
A kind of pultrusion equipment of thermoplastic composite of continuous fiber, it comprises constant force creel 1, collection yarn plate 2, moisture separator 3, infuser 5, mould 6, cooling bath 7, hauling machine 8 and cutting machine 9, collection yarn plate 2 is installed between constant force creel 1 and the moisture separator 3, hauling machine 8 is between cooling bath 7 and cutting machine 9, infuser 5 is between moisture separator 3 and mould 6, cooling bath 7 is between shaping mould 6 and hauling machine 8, it is characterized in that described infuser 5 is mainly by shell 501, adjust axle 502, fiber spreader 503 and resin content controller 504 are formed, shell 501 is provided with the fiber perforated plate 505 that penetrates for the continuous fiber after drying near an end of moisture separator 3, the other end of shell 501 is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell 501 inner chambers are near the tapered structure of an end of fiber fairlead; Described fiber spreader 503 and resin content controller 504 are fixedly mounted on to be adjusted on the axle 502, and resin content controller 505 is arranged in the pyramidal structure of shell 510 inner chambers, an end of adjusting axle 502 passes through the screw thread spinning on fiber perforated plate 505, the other end of adjusting axle 502 is bearing on the shell 501, shell 501 is provided with resin spout 506, and resin spout 506 is connected with the discharging opening of twin-screw mixer machine 4.
On the described adjustment axle 502 three discoid fiber spreaders 503 are installed at least, wherein have at least be processed with on the fiber spreader 503 with fiber perforated plate 505 on the hole of axially entrying that is complementary of hole count, continuous fiber under the effect of all fiber spreaders 503 in infuser 5 curved shape arrange, force dipping.
Described resin content controller 504 is conical structure or spherical cap structure.
Beneficial effect of the present invention:
The present invention provides the resin raw material of ideal concentration and temperature by adopting the twin-screw mixer machine, solved the problem of the resin infusibilityization of conventional heater existence, simultaneously by design to dipping, the curved shape of continuous fiber is fully mixed with resin in its infuser inside, guarantee that fiber surface has enough resins, can remove or the amount of the resin that increases on the fiber to be glued reaches optimum Match simultaneously according to the ratio of fiber and the resin position by adjustment resin controller.
The inventive method is simple, and device security is reliable, has fundamentally solved to produce to be badly in need of, can continuous batch production.
Description of drawings
Fig. 1 is that process equipment of the present invention is formed schematic diagram.
Fig. 2 is the structural representation of infuser of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
As shown in Figure 1, 2.
A kind of pultrusion method of thermoplastic composite of continuous fiber, it may further comprise the steps:
At first, the thermoplastic composite continuous fiber drawn to pass from permanent tension force creel 1 send into moisture separator 3 behind the collection yarn plate 2 and dry, the moisture content of control continuous fiber is below 3%;
Secondly, will send in the infuser 5 through the continuous fiber that dries and flood; This infuser 5 mainly is made up of shell 501, adjustment axle 502, fiber spreader 503 and resin content controller 504, shell 501 is provided with the fiber perforated plate 505 that penetrates for the continuous fiber after drying near an end of moisture separator 3, the other end of shell 501 is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell 501 inner chambers are near the tapered structure of an end of fiber fairlead; Described fiber spreader 503 and resin content controller 504 are fixedly mounted on to be adjusted on the axle 502, and resin content controller 505 is arranged in the pyramidal structure of shell 510 inner chambers, an end of adjusting axle 502 passes through the screw thread spinning on fiber perforated plate 505, the other end of adjusting axle 502 is bearing on the shell 501, shell 501 is provided with resin spout 506, and resin spout 506 is connected with the discharging opening of twin-screw mixer machine 4; Described continuous fiber from the fiber perforated plate 505 of infuser 5 one ends enter infuser 5 inner backs under the guiding of the fiber spreader 503 of infuser inside and resin content controller 504, be distributed in fully flood the infuser shell 501 and remove unnecessary resin after from the fiber fairlead of shell 501 other ends, draw and enter moulding in the product moulding mould 6; Adjust the discoid fiber spreader 503 that to install on the axle 502 more than three or three during concrete enforcement, as shown in Figure 2, wherein have be processed with on the fiber spreader 503 with fiber perforated plate 505 on the hole of axially entrying that is complementary of hole count, the circumferential surface of remaining fiber spreader 503 can process axial notch or the spherical groove for the continuous fiber location, described continuous fiber is arranged in first fiber spreader 503 surfaces earlier after fiber perforated plate 505 enters the infuser 5 axial location groove (also can not be provided with this detent when specifically implementing, open on the surface of device 503 the fiber people and directly strain by tractive force, down together), in the hole of axially entrying on the fiber spreader 503 in the middle of penetrating then, enter after from the hole of entrying of centre, passing again in the axial location groove (also this detent can be set when specifically implementing) on last fiber spreader 503 surface, pass from infuser 5 through spherical crown shape resin content controller 504 again and directly enter moulding in the mould 6, as seen from Figure 2, thermoplastic composite continuous fiber curved shape in infuser is arranged, it can contact with the resin in the middle of the infuser and can contact with the resin near inner walls so that fiber can be flooded fully.
The 3rd, the heating-up temperature of control mould obtains required section bar at 150 ℃ ~ 300 ℃ (specifically can be determined by the performance of thermoplastic);
The 4th, section bar after the moulding is entered immediately carry out cooling and shaping in the adjacent water cooling tank 7, under the traction of hauling machine 8, enter then in the synchronous automatic gas cutting machine and get final product by required size cutting, packing.
Fig. 1 is a whole process flow and required equipment, and technological process is:
1, continuous fiber is drawn from the constant force creel, under tension control, through collection yarn plate, by moisture separator (water content is controlled at 3%);
2, water content at the fiber below 3%, is entered sealed infuser and resin and soaks under the situation that satisfies the resin dissolves temperature, introduce at the uniform velocity forward;
3, in sealed infuser, be provided with the fiber expander, resin content adjuster, spreader, pressure sensor, Based Intelligent Control measuring methods such as temperature sensor;
4, the control of thermoplasticity temperature is divided into three sections: the infiltration condition of fiber impregnated resin is satisfied in the control of (1) infuser temperature; (2) mould temperature control; (3) the mould temperature satisfies the moulding requirement;
5, adopt in the process units twin-screw mixer, extrude feeding and make resin fusing, its objective is the thermoplastic material that satisfies the different formulations requirement, mixing, feeding, thereby reach the high-quality thermoplastic profiles;
6, under certain resin content, fiber is introduced mould, the moulding heating;
7, section bar is through the water cooling tank cooling and shaping;
8, with hauling machine draw fibers and in type thermoplastic profiles;
9, with synchronization cutting mechanism fixed length, cutting.
Embodiment two.
As shown in Figure 1, 2.
A kind of pultrusion equipment of thermoplastic composite of continuous fiber, it comprises constant force creel 1, collection yarn plate 2, thermostat 3, infuser 5, mould 6, cooling bath 7, hauling machine 8, cutting machine 9 and blanking comprise platform 10, collection yarn plate 2 is installed between constant force creel 1 and the moisture separator 3, hauling machine 8 is positioned at cooling bath 7(can adopt tank) and cutting machine 9 between, infuser 5 is between thermostat 3 and mould 6, cooling bath 7 next-door neighbour's moulds 6 are installed, as shown in Figure 1, described infuser 5 is mainly by shell 501, adjust axle 502, fiber spreader 503 and resin content controller 504 are formed, shell 501 is provided with the fiber perforated plate 505 that penetrates for the continuous fiber after drying near an end of moisture separator 3, the other end of shell 501 is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell 501 inner chambers are near the tapered structure of an end of fiber fairlead; Described fiber spreader 503 and resin content controller 504 are fixedly mounted on to be adjusted on the axle 502, and resin content controller 505 is arranged in the pyramidal structure of shell 510 inner chambers, an end of adjusting axle 502 passes through the screw thread spinning on fiber perforated plate 505, the other end of adjusting axle 502 is bearing on the shell 501, shell 501 is provided with resin spout 506, and resin spout 506 is connected with the discharging opening of twin-screw mixer machine 4.As shown in Figure 2.
Also can further adopt following measure with the raising molding effect during concrete enforcement,
1. on adjustment axle 502, three discoid fiber spreaders 503 are installed at least, wherein have at least be processed with on the fiber spreader 503 with fiber perforated plate 505 on the hole of axially entrying that is complementary of hole count, continuous fiber under the effect of all fiber spreaders 503 in infuser 5 curved shape arrange and force dipping, to be flooded fully.
2, resin content controller 504 is designed to slab construction or spherical cap structure.
Constant force creel 1 in the present embodiment, collection yarn plate 2, moisture separator 3, twin-screw mixer machine 4, mould 6, cooling bath 7, hauling machine 8 and cutting machine 9 etc. all can adopt the prior art self-control or directly from market purchasing.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (7)
1. the pultrusion method of the thermoplastic composite of a continuous fiber is characterized in that it may further comprise the steps:
At first, the thermoplastic composite continuous fiber drawn to pass from permanent tension force creel (1) send into moisture separator (3) behind collection yarn plate (2) and dry, the moisture content of control continuous fiber is below 3%;
Secondly, will send in the infuser (5) through the continuous fiber that dries and flood; This infuser (5) mainly is made up of shell (501), adjustment axle (502), fiber spreader (503) and resin content controller (504), shell (501) is provided with the fiber perforated plate (505) that penetrates for the continuous fiber after drying near an end of moisture separator (3), the other end of shell (501) is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell (501) inner chamber is near the tapered structure of an end of fiber fairlead; Described fiber spreader (503) and resin content controller (504) are fixedly mounted on to be adjusted on the axle (502), and resin content controller (505) is arranged in the pyramidal structure of shell (510) inner chamber, an end of adjusting axle (502) passes through the screw thread spinning on fiber perforated plate (505), the other end of adjusting axle (502) is bearing on the shell (501), shell (501) is provided with resin spout (506), and resin spout (506) is connected with the discharging opening of twin-screw mixer machine (4); Described continuous fiber from the fiber perforated plate (505) of infuser (5) one ends enter the inner back of infuser (5) under the guiding of the fiber spreader (503) of infuser inside and resin content controller (504), be distributed in fully flood the infuser shell (501) and remove unnecessary resin after from the fiber fairlead of shell (501) other end, draw and enter the middle moulding of product moulding mould (6);
The 3rd, the heating-up temperature of control mould obtains required section bar at 150 ℃ ~ 300 ℃;
The 4th, make the section bar cooling and shaping in water cooling tank (7) after the moulding, under the traction of hauling machine (8), enter then in the synchronous automatic gas cutting machine and get final product by required size cutting, packing.
2. the pultrusion method of the thermoplastic composite of continuous fiber according to claim 1 is characterized in that the resin temperature of described dipping usefulness is controlled by twin-screw mixer machine (4), and its temperature value is 150 ℃ ~ 300 ℃.
3. the pultrusion method of the thermoplastic composite of continuous fiber according to claim 1, it is characterized in that on the described adjustment axle (502) three discoid fiber spreaders (503) being installed at least, wherein have at least be processed with on the fiber spreader (503) with fiber perforated plate (505) on the hole of axially entrying that is complementary of hole count, described continuous fiber under the effect of all fiber spreaders (503) in infuser (5) curved shape arrange, force dipping.
4. the pultrusion method of the thermoplastic composite of continuous fiber according to claim 1 is characterized in that described resin content controller (504) is conical structure or spherical cap structure.
5. the pultrusion equipment of the thermoplastic composite of a continuous fiber, it comprises constant force creel (1), collection yarn plate (2), moisture separator (3), infuser (5), mould (6), cooling bath (7), hauling machine (8) and cutting machine (9), collection yarn plate (2) is installed between constant force creel (1) and the moisture separator (3), hauling machine (8) is positioned between cooling bath (7) and the cutting machine (9), infuser (5) is positioned between moisture separator (3) and the mould (6), cooling bath (7) is positioned between shaping mould (6) and the hauling machine (8), it is characterized in that described infuser (5) is mainly by shell (501), adjust axle (502), fiber spreader (503) and resin content controller (504) are formed, shell (501) is provided with the fiber perforated plate (505) that penetrates for the continuous fiber after drying near an end of moisture separator (3), the other end of shell (501) is provided with the fiber fairlead that passes for the continuous fiber behind the dipping, and shell (501) inner chamber is near the tapered structure of an end of fiber fairlead; Described fiber spreader (503) and resin content controller (504) are fixedly mounted on to be adjusted on the axle (502), and resin content controller (505) is arranged in the pyramidal structure of shell (510) inner chamber, an end of adjusting axle (502) passes through the screw thread spinning on fiber perforated plate (505), the other end of adjusting axle (502) is bearing on the shell (501), shell (501) is provided with resin spout (506), and resin spout (506) is connected with the discharging opening of twin-screw mixer machine (4).
6. the pultrusion equipment of the thermoplastic composite of continuous fiber according to claim 5, it is characterized in that on the described adjustment axle (502) three discoid fiber spreaders (503) being installed at least, wherein have at least be processed with on the fiber spreader (503) with fiber perforated plate (505) on the hole of axially entrying that is complementary of hole count, continuous fiber under the effect of all fiber spreaders (503) in infuser (5) curved shape arrange, force dipping.
7. the pultrusion equipment of the thermoplastic composite of continuous fiber according to claim 5 is characterized in that described resin content controller (504) is conical structure or spherical cap structure.
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| CN 201010279407 CN101913255A (en) | 2010-09-13 | 2010-09-13 | Pultrusion method and equipment for thermoplastic composite material of continuous fiber |
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| CN102218829B (en) * | 2011-05-09 | 2013-06-26 | 山东理工大学 | Impregnation mold of continuous/fiber reinforced thermoplastic composite material, and use method thereof |
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| US10272621B2 (en) | 2011-06-03 | 2019-04-30 | Cytec Technology Corp. | Resin coated radius fillers and method of making the same |
| CN102363363A (en) * | 2011-10-25 | 2012-02-29 | 管印贵 | Fiber reinforced thermoplastic composite material direct online pultrusion moulding device |
| CN102363363B (en) * | 2011-10-25 | 2013-07-17 | 管印贵 | Fiber reinforced thermoplastic composite material direct online pultrusion moulding device |
| CN103225369A (en) * | 2013-03-15 | 2013-07-31 | 哈尔滨工业大学 | Fiber composite bar with surface having helicitic texture, and making method thereof |
| CN103225369B (en) * | 2013-03-15 | 2015-08-05 | 哈尔滨工业大学 | A kind of surface fibre composite reinforcement with helicitic texture and preparation method thereof |
| CN103921454B (en) * | 2014-04-22 | 2016-04-27 | 湖南大学 | A kind of homogeneous heating and high-temperature resistant composite material production system |
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Application publication date: 20101215 |