CN104723582A - Manufacture equipment for continuous fiber reinforced thermoplastic composite material and application thereof - Google Patents

Abstract

The invention discloses manufacture equipment for a continuous fiber reinforced thermoplastic composite material. The equipment comprises a creel (10), a fiber heating device (20), a fiber pretension device (30), a fiber immersion unit (40) and a traction cooling setting device (60), wherein the fiber immersion unit (40) is provided with at least one coating head (41) and at least one immersion roller (44); an introduced continuous fiber bundle (12) is contacted with the coating head (41) and generates certain tension; the continuous fiber bundle (12) is coated with molten thermoplastic resin by virtue of coating gaps (43) in the coating head; and the coated continuous fiber bundle (12) is immersed by the molten thermoplastic resin by virtue of the immersion roller (44). Compared with the prior art, the manufacture equipment has the advantages that a specially designed fiber immersion unit is adopted, the tension and time required by the molten thermoplastic resin for immersing fibers can be guaranteed, and the fibers in the composite material can be completely immersed.

Description

A kind of manufacturing equipment of continuous fiber reinforced thermoplastic composite material and application thereof

Technical field

The present invention relates to a kind of manufacturing equipment and manufacture method thereof of thermoplastic composite, especially relate to a kind of manufacturing equipment and manufacture method thereof of continuous fiber reinforced thermoplastic resin based composites.

Background technology

Continuous fiber reinforced thermoplastic composite material prepreg is owing to having the characteristics such as excellent mechanical performance such as high hot strength, bending strength and modulus, outstanding high/low-temperature impact performance, low density and recoverable, obtain huge development in recent years, corresponding manufacturing technology have also been obtained great breakthrough.For the manufacture of this material, the dispersion of fiber and infiltration, the interface of fiber and interlaminar resin bonding the most key.Therefore, all manufacturing technologies mainly solve the dispersion of fiber and resin to the infiltration of fiber.But manufactured the die head of the melt impregnation that prepreg tape all adopts design complicated at present by molten resin impregnating continuous fibres, such as US Patent No. 5158806, US4588538, US5037284, US5529652 etc.The design of these methods one side die heads is more complicated, design, manufacturing cost is high, owing to all needing that the high-temperature resin of melting is extruded in dipping die head by screw extruder in these methods, then the impregnating unit of design is separately utilized to realize the complete wetting of fiber, continuous fiber simultaneously after dipping will by controlling the outlet of resin content, the therefore more difficult control of the content of resin; On the other hand, the infiltration due to fiber occurs in the inside of dipping die head, is difficult to control to the dipping situation of fiber, and to the cleaning of die head and the arrangement of fiber and difficulty of entrying.

Chinese patent CN 1294965A discloses a kind of method of continuous fiber reinforced thermoplastic resin prepreg tape, and it adopts mixed fiber yarn scattered in advance such as Vetrotex to producemixed fiber yarn manufactures the thermoplastic composite material prepreg of continuous lod by the mode that heating and melting roll-in is flooded.Although the method can manufacture very well flood continuous fiber reinforced thermoplastic composite material prepreg completely, but due to raw material employing is the mixed fiber yarn manufactured in advance, the manufacturing cost causing material is high, need first to carry out melt spinning to thermoplastic resin, then with other fiber hybrid.Therefore cause higher material manufacturing cost and technical difficulty, be not suitable for the requirement that this material low cost manufactures.

Chinese patent CN101474868A discloses a kind of method of brand-new continuous fiber reinforced thermoplastic composite material; what solve fiber well walks the problems such as yarn; but also there are some and such as infiltrate the shorter infiltration causing fiber can not realize 100% of flow process; though or can realize well infiltrating; but need barrier film to protect, otherwise there will be the problem etc. of roll banding.

Summary of the invention

The present invention aims to provide a kind of manufacturing equipment and application thereof of continuous fiber reinforced thermoplastic composite material, under the prerequisite maintaining low cost, ensures the complete wetting of the fiber in the continuous fiber reinforced thermoplastic composite material manufactured and has extremely low voidage.

Object of the present invention can be achieved through the following technical solutions: a kind of manufacturing equipment of continuous fiber reinforced thermoplastic composite material, this equipment comprises creel (10), fiber heater (20), fiber pretensioner (30), fiber impregnation unit (40) and traction cooling and shaping device (60), described fiber impregnation unit (40) has at least one application head (41) and at least one dip roll (44), the continuous tow (12) introduced contacts with application head (41) and produces certain tension force, by the coating gap (43) on described application head to continuous tow (12) coating molten thermoplastic resin, by described dip roll (44), the continuous tow (12) after coating is realized to the infiltration of molten thermoplastic resin.

Preferably, described equipment comprises wrap-up (70) further, by described wrap-up (70) by continuous fiber band (13) coiling and molding.

Preferably, described creel (10) is provided with at least one spindle horizontally rotated (13) further, and described spindle (13) has damping unit.

Preferably, described fiber impregnation unit (40) is connected with single screw extrusion machine or double screw extruder (50) by connector (80).

A manufacture method for continuous fiber reinforced thermoplastic composite material, the method comprises the following steps:

A the continuous tow (12) of parallel expansion is removed moisture through fiber heater (20) by () after creel (10) is drawn;

B continuous tow (12) is introduced fiber impregnation unit (40) through fiber pretensioner (30) by (),

C continuous tow (12) that () introduces contacts with application head (41) and produces certain tension force, by the coating gap (43) on described application head to continuous tow (12) coating molten thermoplastic resin, by described dip roll (44), the continuous tow (12) after coating is realized to the infiltration of molten thermoplastic resin again, obtain the continuous fiber band (13) of thorough impregnation;

D the continuous fiber band (13) of thorough impregnation is introduced by least one group of traction cooling and shaping device (60) by (), obtain the continuous fiber band (13) after cooling and shaping.

Preferably, the continuous tow (12) of described parallel expansion obtains by the following method: what continuous fiber volume (11) was placed in creel (10) horizontally rotates on spindle (13), make continuous tow (12) from parallel expansion continuous fiber volume (11), obtain the continuous tow (12) of parallel expansion.

Preferably, molten thermoplastic resin in the coating gap (43) of described application head (41) obtains by the following method: thermoplastic resin is carried out melting by screw extruder (50), and by the connector (80) between extruder (50) and impregnating unit, molten thermoplastic resin is transported in the resin transfer passage (42) of application head, and by the resin transfer passage (42) of described application head, molten thermoplastic resin is introduced in the coating gap (43) of described application head (41).

Preferably, described method is further comprising the steps of: by the continuous fiber band after cooling and shaping by wrap-up (70) coiling and molding.

Preferably, the temperature of dip roll (44) is higher than the processing temperature of described thermoplastic resin.For crystalline polymer, the temperature of dip roll (44) is higher than the melt temperature of described thermoplastic resin; For non-crystalline polymer, the temperature of dip roll (44) is higher than the processing flowing temperature of described thermoplastic resin.

In the present invention, described continuous fiber is inorfil, organic fiber example and metallic fiber in one or more.Described inorfil is glass fibre, basalt fibre, one or more in carbon fiber and boron fibre; Described organic fiber is Fypro, one or more in polyester fiber and superhigh molecular weight polyethylene fibers; Described metallic fiber is stainless steel fibre and/or copper fiber.

In the present invention, described thermoplastic resin is polyolefin, thermoplastic polyester, polyamide, one or more in Merlon and other resins for universal use or high performance engineering plastics.Described polyolefin is polyethylene, one or more in homo-polypropylene and co-polypropylene; Described thermoplastic polyester is one or more in PET, PBT and PTT; Described polyamide is one or more in PA6, PA66, PA12, PA1212, PA610, PA612, PA46, PA6T, PA9T, PA10T, PA46, PA11 and PPA; Other interchangeable heat plastic resins described are polystyrene PS, high impact polystyrene HIPS, polyvinylchloride, propylene cyanogen-BS ABS, one or more in polymetylmethacrylate and styrene-maleic anhydride copolymer SMA; Described high performance engineering plastics is polyphenylene thioether PPS, Noryl MPPO, polyether-ether-ketone PEEK, polysulfones PSU, one or more in thermoplastic polyurethane TPU and polyimides PAI.

Preferably, described thermoplastic resin contains additive, and described additive is antioxidant, UV light stabilizing agent, antistatic additive, lubricant, plasticizer, one or more in graft modification agent and fire retardant.

Compared with prior art, beneficial effect of the present invention is as follows:

First, have employed the fiber impregnation unit of particular design, in this fiber impregnation unit, coating and the infiltration of molten thermoplastic resin realize respectively by application head and dip roll, ensure that molten thermoplastic resin is to the tension force required for fiber infiltration and time, and then ensure that the complete wetting of Fiber In Composite Material;

Second, due to the special design to technique, make the dispersion of fiber and infiltrate than being easier to, the all even dipping of fiber dispersion continuous fiber reinforced thermoplastic composite material prepreg completely can be obtained, the coating gap of application head contacts with continuous tow, ensure that the thermoplastic resin extruded can be taken away completely by continuous tow, reduce the residual of Excess resin, just eliminate the oxidation that resin causes because the time of staying is long, the phenomenons such as degraded, the content of resin in composite can be controlled by shirtsleeve operations such as the rotating speeds of screw rod simultaneously, be conducive to the coating of continuous tow and the control of molten thermoplastic resin's content, therefore in prepreg tape, the content of thermoplastic resin can control easily, the gathering of unnecessary resin can be avoided to cause oxidation simultaneously, the unfavorable problems such as degraded,

3rd, dip roll promotes that the infiltration of molten thermoplastic resin to fiber achieves the complete wetting of continuous fiber in composite further, reduces porosity.

4th, dip roll is provided with heater further, makes the temperature of dip roll be higher than the processing temperature of resin, improves the effect that molten thermoplastic resin infiltrates continuous fiber.

Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.

Accompanying drawing explanation

Fig. 1 is the manufacturing equipment schematic diagram of continuous fiber reinforced thermoplastic composite material of the present invention.

Fig. 2 is fiber impregnation cellular construction schematic diagram of the present invention.

In figure, 10. creel, 11. continuous fiber volumes, 12. continuous tows, 13. spindles, 20. fiber heaters, 30. fiber pretensioner, 40. fiber impregnation unit, 41. application heads, 42. resin transfer passages, 43. coating gaps, 44. dip rolls, 50. extruders, 60. traction cooling and shaping devices, 70. wrap-ups, 80. connectors.

Detailed description of the invention

Below in conjunction with specific embodiment, set forth the present invention further.Should be appreciated that, these embodiments only for illustration of the present invention, and are not intended to limit the scope of the invention.The improvement made according to the present invention of those skilled in the art and adjustment, still belong to protection scope of the present invention in actual applications.

A kind of manufacturing equipment of continuous fiber reinforced thermoplastic composite material as shown in Figure 1, comprises creel 10, fiber heater 20, fiber pretensioner 30, fiber impregnation unit 40, traction cooling and shaping device 60 and wrap-up 70.Compared with other are invented, the topmost feature of the present invention is the fiber impregnation unit 40 that have employed particular design, in this fiber impregnation unit 40, coating and the infiltration of molten thermoplastic resin realize respectively by application head (41) and dip roll (44), ensure that thermoplastic resin is to the tension force required for continuous fiber infiltration and time, and then ensure that the complete wetting of Fiber In Composite Material.

A manufacture method for continuous fiber reinforced thermoplastic composite material, it comprises following several step:

(1) by parallel for continuous tow expansion:

Continuous fiber volume 11 is placed on the spindle 13 of creel 10, makes continuous tow 12 from parallel expansion continuous fiber volume 11; Each spindle 13 horizontally rotated is provided with damping unit to control the uniformity of continuous fiber volume 11 tension force when launching continuous fiber, ensures the stability and arranged in parallel when continuous fiber launches;

(2) by continuous tow preheating

For the moisture of removing continuous fiber adsorption, utilize heater 20 to be removed by moisture the continuous tow 12 of drawing from creel 10, this is conducive in solution composite because of the problem such as bubble, resin decomposition that moisture causes; Heat continuous fiber to certain temperature, the molten thermoplastic resin that guarantee painting is covered with is not at the surface crystallization of continuous fiber or solidify, and affects the infiltration of molten thermoplastic resin to continuous fiber simultaneously; In the present invention, required maximum temperature is as the criterion with the temperature of the surface conditioning agent not destroying continuous fiber, ensure that the temperature of continuous fiber when contacting with molten resin is between the melt temperature of base thermoplastic's resin and surface conditioning agent fail temperature, to guarantee that continuous fiber can not cause thermoplastic resin to affect the infiltration of fiber at the surface crystallization of continuous fiber when contacting with molten thermoplastic resin; Therefore need continuous tow 12 preheating, continuous fiber preheating can adopt Electric heating or infrared heating mode, for improving the efficiency of heating, and preferred infrared heating mode in the present invention;

(3) continuous tow uniform parallel is arranged:

In order to ensure the uniform parallel arrangement of the continuous tow 12 of drawing from creel 10 further, avoid producing distortion or distortion, the present invention devises pretension adjusting device 30, main purpose realizes drawing the arrangement of continuous tow 12 uniform parallel from creel 10, and continuous tow 12 is launched, better infiltrate to realize molten thermoplastic resin.

(4) impregnating unit is utilized to realize the dipping of molten resin to fiber:

The present invention adopts the fiber impregnation unit 40 of particular design; This fiber impregnation unit 40 comprises at least one application head 41 and at least one dip roll 44.Thermoplastic resin utilizes screw extruder 50 to carry out melting, and by the connector 80 between extruder 50 and fiber impregnation unit 40, molten thermoplastic resin is transported in the resin transfer passage 42 of application head 41, by the coating gap 43 between application head 41 and the continuous tow 12 introduced, molten thermoplastic resin is coated to uniformly the surface of continuous fiber.Produce certain tension force between continuous fiber 12 and application head 41, such molten thermoplastic resin is coated to the surface of fiber by the coating gap 43 of application head 41, and realizes the infiltration of part under tension.

The continuous tow 12 being coated with molten thermoplastic resin, by staggered dip roll 44, realizes infiltration and the infiltration of resin further, finally arrives complete wetting.The temperature of staggered dip roll 44 is higher than fusing point or the processing flowing temperature of resin, and during to ensure dip roll 44 and resin contact, resin is in melt state.By coating and the infiltration of fiber impregnation unit 40, just can obtain permeating continuous fiber band 13 completely.

The present invention adopts this special device of application head 41, ensure that the thermoplastic resin extruded can be taken away completely by continuous tow 12, reduces the residual of Excess resin, just eliminates the phenomenon such as oxidation, degraded that resin causes because the time of staying is long.The content of resin in composite can be controlled by shirtsleeve operations such as the rotating speeds of screw rod simultaneously.

(5) roll-in, sizing is cooled:

For ensureing to can be good at keeping smooth and bright and clean surface through the continuous fiber band of thermoplastic resin thorough impregnation, be provided with at least one group of traction cooling and shaping device 60, it is made up of upper and lower two rollers, roller adopts the mode of logical condensed water to cool, to ensure crystalline polymer crystallization or to ensure that amorphous polymer is cooled to below glass transition temperature, realize the cooled and solidified of molten resin;

(6) coiling and molding:

After cooling by cooling and shaping roller, namely continuous fiber band by wrap-up 70 coiling and molding, is convenient to packed and transported.

Embodiment 1

Continuous glass fiber reinforced polypropylene one-way tape composite

As shown in Figure 1, continuous glass fibre volume (PPG company 4588 2400tex) is arranged on the spindle 13 of creel 10, careful is drawn through the thread eye be arranged on creel 10 by continuous fiber, the continuous fiber of drawing through guidewire port enters preheating oven 20, adopt infrared heating, continuous fiber is preheating to temperature 230 DEG C, continuous fiber through preheating enters pretensioner 30, carry out arrangement and disperse under tension, obtaining arranging smooth, pre-dispersed continuous tow 12.

Single screw extrusion machine 50 pairs of polypropylene are utilized to melt extrude, the temperature of machine barrel is set as 210 DEG C, by the connector 80 between extruder 50 and fiber impregnation unit 40, be transported to by the polypropylene of melting on the application head 41 of fiber impregnation unit 40, the temperature of connector 80 is set as 220 DEG C.

The fiber impregnation unit 40 that continuous fiber band through fiber pretensioner 30 arrangement dispersion enters the dip roll 44 being provided with two intersection application heads 41 and four cross arrangement carries out applying and infiltrating, and the temperature of application head 41 and dip roll 44 is set to 220 DEG C.By the path of " S " type, achieve the infiltration of melt polypropylene to continuous glass fibre.

Be impregnated with polyacrylic continuous glass fibre band 13 and enter into traction cooling and shaping device 60, traction cooling and shaping device 60 is connected with condensed water, and the pressure setting between two rollers is 4MPa.Dipping continuous glass fibre band 13 obtains smooth surface and floods continuous glass fiber reinforced polypropylene one-way tape completely after the sizing cooling of traction cooling and shaping device 60, through air cooling, wound into a roll, pack, just can obtain continuous fiber reinforced polypropylene one-way tape composite.

Obtained composite is carried out Mechanics Performance Testing, and test result sees the following form 1.

Embodiment 2

Continuous carbon fibre reinforced nylon 6 one-way tape composite

As shown in Figure 1, continuous carbon fibre volume (toray company's T 700 12K) is arranged on the spindle 13 of creel 10, careful is drawn through the thread eye be arranged on creel 10 by fiber, the fiber of drawing through guidewire port enters preheating oven 20, adopt infrared heating, continuous fiber is preheating to temperature 240 DEG C, and the continuous fiber through preheating enters pretensioner 30, carry out arrangement and disperse under tension, obtaining arranging smooth, pre-dispersed continuous tow 12.

Single screw extrusion machine 50 pairs of nylon 6 are utilized to melt extrude, the temperature of machine barrel is set as 230 DEG C, by the connector 80 between extruder 50 and fiber impregnation unit 40, be transported on the application head 41 of fiber impregnation unit 40 by the nylon 6 of melting, the temperature of connector 80 is set as 250 DEG C.

The fiber impregnation unit 40 that continuous fiber band through fiber pretensioner 30 arrangement dispersion enters the dip roll 44 being provided with two intersection application heads 41 and four cross arrangement carries out applying and infiltrating, and the temperature of application head 41 and dip roll 44 is set to 250 DEG C.By the path of " S " type, achieve the infiltration of melted nylon 6 pairs of continuous carbon fibres.

The continuous carbon fibre band 13 being impregnated with nylon 6 enters into traction cooling and shaping device 60, and traction cooling and shaping device 60 is connected with condensed water, and the pressure setting between two rollers is 4MPa.Dipping continuous carbon fibre band 13 obtains smooth surface and floods continuous carbon fibre reinforced nylon 6 one-way tape completely after the sizing cooling of traction cooling and shaping device 60, through air cooling, wound into a roll, pack, just can obtain continuous carbon fibre reinforced nylon 6 one-way tape composite.

Obtained composite is carried out Mechanics Performance Testing, and test result sees the following form 1.

Embodiment 3

Continuous aramid fiber reinforced PA66 one-way tape composite

As shown in Figure 1, continuous aramid fiber volume (du pont company Kevlar K29) is arranged on the spindle 13 of creel 10, careful is drawn through the thread eye be arranged on creel 10 by fiber, the fiber of drawing through guidewire port enters preheating oven 20, adopt infrared heating, continuous fiber is preheating to temperature 270 DEG C, and the continuous fiber through preheating enters pretensioner 30, carry out arrangement and disperse under tension, obtaining arranging smooth, pre-dispersed continuous tow 12.

Single screw extrusion machine 50 pairs of nylon66 fiber are utilized to melt extrude, the temperature of machine barrel is set as 280 DEG C, by the connector 80 between extruder 50 and fiber impregnation unit 40, be transported to by the nylon66 fiber of melting on the application head 41 of fiber impregnation unit 40, the temperature of connector 80 is set as 280 DEG C.

The fiber impregnation unit 40 that continuous fiber band through fiber pretensioner 30 arrangement dispersion enters the dip roll 44 being provided with two intersection application heads 41 and four cross arrangement carries out applying and infiltrating, and the temperature of application head 41 and dip roll 44 is set to 280 DEG C.By the path of " S " type, achieve the infiltration of melted nylon 66 pairs of continuous aramid fiber.

The continuous aramid fiber band 13 being impregnated with nylon66 fiber enters into traction cooling and shaping device 60, and traction cooling and shaping device 60 is connected with condensed water, and the pressure setting between two rollers is 3MPa.Dipping continuous aramid fiber band 13 obtains smooth surface and floods continuous aramid fiber reinforced PA66 one-way tape completely after the sizing cooling of traction cooling and shaping device 60, through air cooling, wound into a roll, pack, just can obtain continuous aramid fiber reinforced PA66 one-way tape composite.

Obtained composite is carried out Mechanics Performance Testing, and test result sees the following form 1.

Table 1

Performance	Method of testing	Unit	Embodiment 1	Embodiment 2	Embodiment 3
						Bending strength	GB/T 9341-2000	MPa	650	1200	350
Hot strength	GB/T 1040-2006	MPa	720	1100	950
						Impact strength	JG 149-2003	KJ/m2	280	170	-

As can be seen from upper table 1, the intensity of continuous fiber thermoplastic composite obtained in embodiment 1-3 is higher, shock resistance is better.

Embodiment 4

Continuous glass fibre strengthens PC/ABS one-way tape composite

As shown in Figure 1, continuous glass fibre volume (megalith ER17 362K 1200Tex) is arranged on the spindle 13 of creel 10, careful is drawn through the thread eye be arranged on creel 10 by fiber, the fiber of drawing through guidewire port enters preheating oven 20, adopt infrared heating, continuous fiber is preheating to temperature 240 DEG C, and the continuous fiber through preheating enters pretensioner 30, carry out arrangement and disperse under tension, obtaining arranging smooth, pre-dispersed continuous tow 12.

Single screw extrusion machine 50 pairs of PC/ABS alloys are utilized to melt extrude, the temperature of machine barrel is set as 230 DEG C, by the connector 80 between extruder 50 and fiber impregnation unit 40, be transported to by the PC/ABS of melting on the application head 41 of fiber impregnation unit 40, the temperature of connector 80 is set as 240 DEG C.

The fiber impregnation unit 40 that continuous fiber band through fiber pretensioner 30 arrangement dispersion enters the dip roll 44 being provided with two intersection application heads 41 and four cross arrangement carries out applying and infiltrating, and the temperature of application head 41 and dip roll 44 is set to 250 DEG C.By the path of " S " type, achieve the infiltration of melting PC/ABS to continuous glass fibre.

The continuous glass fibre band 13 being impregnated with PC/ABS enters into traction cooling and shaping device 60, and traction cooling and shaping device 60 is connected with condensed water, and the pressure setting between two rollers is 4MPa.Dipping continuous glass fibre band 13 obtains smooth surface and floods the PC/ABS of continuous glass fibre enhancing completely one-way tape after the sizing cooling of traction cooling and shaping device 60, through air cooling, wound into a roll, pack, just can obtain continuous glass fibre and strengthen PC/ABS one-way tape composite.

Embodiment 5

Continuous carbon fibre strengthens PPS one-way tape composite

As shown in Figure 1, continuous carbon fibre volume (toray company's T 70012K) is arranged on the spindle 13 of creel 10, careful is drawn through the thread eye be arranged on creel 10 by fiber, the fiber of drawing through guidewire port enters preheating oven 20, adopt infrared heating, continuous fiber is preheating to temperature 300 DEG C, and the continuous fiber through preheating enters pretensioner 30, carry out arrangement and disperse under tension, obtaining arranging smooth, pre-dispersed continuous tow 12.

Single screw extrusion machine 50 couples of PPS are utilized to melt extrude, the temperature of machine barrel is set as 310 DEG C, by the connector 80 between extruder 50 and fiber impregnation unit 40, be transported to by the PPS of melting on the application head 41 of fiber impregnation unit 40, the temperature of connector 80 is set as 310 DEG C.

The fiber impregnation unit 40 that continuous fiber band through fiber pretensioner 30 arrangement dispersion enters the dip roll 44 being provided with two intersection application heads 41 and four cross arrangement carries out applying and infiltrating, and the temperature of application head 41 and dip roll 44 is set to 310 DEG C.By the path of " S " type, achieve the infiltration of melting PPS to continuous carbon fibre.

The continuous carbon fibre band 13 being impregnated with PPS enters into traction cooling and shaping device 60, and traction cooling and shaping device 60 is connected with condensed water, and the pressure setting between two rollers is 4MPa.Dipping continuous carbon fibre band 13 obtains smooth surface and floods the PPS of continuous carbon fibre enhancing completely one-way tape after the sizing cooling of traction cooling and shaping device 60, through air cooling, wound into a roll, pack, just can obtain continuous carbon fibre and strengthen PPS one-way tape composite.

Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.

Claims (10)

1. the manufacturing equipment of a continuous fiber reinforced thermoplastic composite material, this equipment comprises creel (10), fiber heater (20), fiber pretensioner (30), fiber impregnation unit (40) and traction cooling and shaping device (60), it is characterized in that, described fiber impregnation unit (40) has at least one application head (41) and at least one dip roll (44), the continuous tow (12) introduced contacts with application head (41) and produces certain tension force, by the coating gap (43) on described application head to continuous tow (12) coating molten thermoplastic resin, by described dip roll (44), the continuous tow (12) after coating is realized to the infiltration of molten thermoplastic resin.

2. the manufacturing equipment of continuous fiber reinforced thermoplastic composite material according to claim 1, it is characterized in that: described equipment comprises wrap-up (70), by described wrap-up (70) by continuous fiber band (13) coiling and molding.

3. the manufacturing equipment of continuous fiber reinforced thermoplastic composite material according to claim 1, it is characterized in that: described creel (10) is provided with at least one spindle horizontally rotated (13), and described spindle (13) has damping unit.

4. the manufacturing equipment of continuous fiber reinforced thermoplastic composite material according to claim 1, is characterized in that: described fiber impregnation unit (40) is connected with single screw extrusion machine or double screw extruder (50) by connector (80).

5. a manufacture method for continuous fiber reinforced thermoplastic composite material, the method comprises the following steps:

A the continuous tow (12) of parallel expansion is removed moisture through fiber heater (20) by () after creel (10) is drawn;

B continuous tow (12) is introduced fiber impregnation unit (40) through fiber pretensioner (30) by (),

C continuous tow (12) that () introduces contacts with application head (41) and produces certain tension force, by the coating gap (43) on application head to continuous tow (12) coating molten thermoplastic resin, by described dip roll (44), the continuous tow (12) after coating is realized to the infiltration of molten thermoplastic resin again, obtain the continuous fiber band (13) of thorough impregnation;

D () by continuous fiber band (13) cooling and shaping of thorough impregnation, obtains the continuous fiber band (13) after cooling and shaping by least one group of traction cooling and shaping device (60).

6. the manufacture method of continuous fiber reinforced thermoplastic composite material according to claim 5, it is characterized in that: the continuous tow (12) of described parallel expansion obtains by the following method: what continuous fiber volume (11) was placed in creel (10) horizontally rotates on spindle (13), make continuous tow (12) from parallel expansion continuous fiber volume (11), obtain the continuous tow (12) of parallel expansion.

7. the manufacture method of continuous fiber reinforced thermoplastic composite material according to claim 5, it is characterized in that: the molten thermoplastic resin in the coating gap (43) of described application head (41) obtains by the following method: thermoplastic resin is carried out melting by screw extruder (50), and by the connector (80) between extruder (50) and impregnating unit, molten thermoplastic resin is transported in the resin transfer passage (42) of application head, and by the resin transfer passage (42) of described application head (41), molten thermoplastic resin is introduced in the coating gap (43) of described application head (41).

8. the manufacture method of continuous fiber reinforced thermoplastic composite material according to claim 5, is characterized in that: said method comprising the steps of: by the continuous fiber band (13) after cooling and shaping by wrap-up (70) coiling and molding.

9. the manufacture method of continuous fiber reinforced thermoplastic composite material according to claim 5, is characterized in that: the temperature of dip roll (44) is higher than the processing temperature of described thermoplastic resin.

10. the manufacture method of continuous fiber reinforced thermoplastic composite material according to claim 5, is characterized in that: described continuous fiber is inorfil, one or more in organic fiber and metallic fiber; Described inorfil is glass fibre, basalt fibre, one or more in carbon fiber and boron fibre; Described organic fiber is Fypro, one or more in polyester fiber and superhigh molecular weight polyethylene fibers; Described metallic fiber is stainless steel fibre and/or copper fiber;

Described thermoplastic resin is polyolefin, thermoplastic polyester, polyamide, one or more in Merlon and other resins for universal use or high performance engineering plastics; Described polyolefin is polyethylene, one or more in homo-polypropylene and co-polypropylene; Described thermoplastic polyester is one or more in PET, PBT and PTT; Described polyamide is one or more in PA6, PA66, PA12, PA1212, PA610, PA612, PA46, PA6T, PA9T, PA10T, PA46, PA11 and PPA; Other interchangeable heat plastic resins described are polystyrene PS, high impact polystyrene HIPS, polyvinylchloride, propylene cyanogen-BS ABS, one or more in polymetylmethacrylate and styrene-maleic anhydride copolymer SMA; Described high performance engineering plastics is polyphenylene thioether PPS, Noryl MPPO, polyether-ether-ketone PEEK, polysulfones PSU, one or more in thermoplastic polyurethane TPU and polyimides PAI;

Described thermoplastic resin contains additive, and described additive is antioxidant, UV light stabilizing agent, antistatic additive, lubricant, plasticizer, one or more in graft modification agent and fire retardant.