CN207972169U

CN207972169U - A kind of continuity thermoplastic resin matrix fiber prepreg material prepares production line

Info

Publication number: CN207972169U
Application number: CN201820087892.7U
Authority: CN
Inventors: 周易
Original assignee: High Tech Material (tianjin) Co Ltd
Current assignee: High Tech Material (tianjin) Co Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2018-10-16
Anticipated expiration: 2028-01-19

Abstract

Production line is prepared the utility model is related to a kind of continuity thermoplastic resin matrix fiber prepreg material, according to the trend of silvalin, it is described prepare production line and be connected successively by carbon fibre tow expansion equipment, carbon fibre tow creel, guide roller, the first draft gear, hot dipping device, calender system, spray body, roller press mechanism, outlet roller, cooler bin, the second draft gear, prepreg thickness detection mechanism, wind-up roll constitute；Hot dipping device includes hot dipping slot, and hot dipping slot is internally provided with several treatment tubs；Calender system includes a pair of first hot roll；Roller press mechanism includes a pair of second hot roll；The distance between a pair of described second hot roll is more than the distance between a pair of described first hot roll, and the surface temperature of a pair of second hot roll is less than the temperature of a pair of first hot rolling roller surface.The utility model can overcome in prepreg that resin distribution is uneven, the bad control of resin content and the problems such as content is low, intensity is low, prepreg wide cut obtained is smaller.

Description

A kind of continuity thermoplastic resin matrix fiber prepreg material prepares production line

Technical field

The utility model belongs to material prepreg technical field more particularly to a kind of continuity thermoplastic resin matrix is fine Dimension prepreg prepares production line.

Background technology

Thermoplastic resin based composite material, using fiber and its fabric as reinforcing material, is led to using thermoplastic resin as matrix Cross a kind of new material that method appropriate is combined into.Compared with thermosetting resin based composites, thermoplastic resin-based composite wood Material has excellent toughness, endurance damage performance, short molding cycle, production efficiency height, can store, can carry out for a long time The series of advantages such as repairing and recycling.Thus obtained increasingly in fields such as aerospace, medical treatment, electronics, machineries Extensive development and application.In particular with the good new aromatic thermoplastic resin matrix of rigidity, heat resistance and resistance to medium The appearance of composite material so that thermoplastic composite overcomes that previous elasticity modulus is low, solvent resistance is poor, fiber and resin knot The disadvantages such as intensity is low are closed, the higher structural material of performance requirement is can be used for.

Currently, the production technology of the prepreg of continuous fiber reinforced thermoplastic resin is mainly the following:Solution impregnates Method, melt impregnation, powder technology method etc..These processes all some limitations, such as solution dipping method, need selection one The mixed solvent that the suitable solvent of kind or several solvents are made into, thermoplastic resin is completely dissolved, and the molten of low viscosity is made Liquid, and fiber is impregnated with this, then solvent, which volatilizees, is made prepreg, which not only wastes material, cause environmental pollution, and And unidirectional parallel fibre bundle can only be conveyed by the form of yarn feeding frame, it is only capable of preparing unidirectional thermoplasticity prepreg.Melting leaching Although stain method can save yarn feeding frame component, the thermoplastic resin of the technological requirement and fiber composite is first prepared into glued membrane, will set Fat indentation forms prepreg in the fiber with some tension, but its be suitable for that resin viscosity is relatively low more or prepreg relatively Impregnation when thin, when resin viscosity is higher or the fiber of dipping is thicker, resin is pressed into fiber with regard to highly difficult, uses to compare now More single side cement-dipping methods there is problem above, also, thus add the adhesive film machine of film, and need thermoplastic resin Meet the limitation for being formed under film-forming temperature and stablizing glued membrane, to constrain the selection of thermoplastic resin lipid species.Powder technology method It is to be applied to powdered resin on fiber in a variety of different ways, this technique productions speed is fast, efficient, technology controlling and process side Just, at present the main form of powder technology method have suspension impregnation method, fluidized-bed impregnation technology, electrostatic Spray Impregnation, Thermoplastic fibre presoaks beam technique or needs to introduce solvent (suspension impregnation method) or need to add equipment (fluidized-bed Impregnation technology needs fluidized-bed, electrostatic Spray Impregnation to need electrostatic fluidising chamber), it is multiple to will result in device structure in this way It is miscellaneous, it is expensive；If Patent No. CN105583961A is " a kind of dusting technique prepares fibre reinforced thermoplasticity prepreg Thermoplastic resin powder is uniformly sprinkling upon on unidirectional carbon cloth by method ", this method by dusting device, is then heated by baking oven molten Melt, it is cooling flatten after wind molding, can continuous production fibre reinforced thermoplasticity prepreg, there are the short equal spies of technological process Point, but toner only is spread to the single side of unidirectional carbon cloth be processed and prepare fibre reinforced thermoplasticity prepreg, cause The resin distribution of upper and lower surface is uneven in fibre reinforced thermoplasticity prepreg, and product strength is low；Patent No. " a method of preparing thermoplasticity prepreg using two-sided dusting technique " of CN201410557345.7, this method first pass through the Thermoplastic resin powder is uniformly sprinkling upon the first face of one-way fabric by one dusting device, is heated and is melted by the first baking oven, goes out to dry Case postcooling flattens, and then fabric is by deflector roll turn-over, by the second dusting device fabric the second face dusting, again by Second baking oven heating melting, then after pressure roller cooling flattens wind molding, can continuous production thermoplasticity prepreg, can knit The two sides of object all uniformly sprinkles thermoplastic resin, but needs to turn over one-way fabric by deflector roll turn-over in second of dusting Face effect directly affects secondary dusting, increases process equipment and operation difficulty.

Therefore, these problems are based on, resin distribution unevenness, the bad control of resin content in prepreg can be overcome by providing one kind System and continuity thermoplastic resin matrix fiber prepreg material the problems such as content is low, intensity is low, prepreg wide cut obtained is smaller Production line is prepared, is had important practical significance.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and resin point in prepreg can be overcome by providing one kind Cloth is uneven, the bad control of resin content and continuity thermoplastic the problems such as content is low, intensity is low, prepreg wide cut obtained is smaller Resin matrix fiber prepreg material prepares production line.

The utility model solves its technical problem and following technical scheme is taken to realize：

A kind of continuity thermoplastic resin matrix fiber prepreg material prepares production line, according to the trend of silvalin, the system Standby production line is by carbon fibre tow expansion equipment, carbon fibre tow creel, guide roller, the first draft gear, hot dipping device, pressure Prolong mechanism, spray body, roller press mechanism, outlet roller, cooler bin, the second draft gear, prepreg thickness detection mechanism, wind-up roll Linking is constituted successively；

The hot dipping device includes hot dipping slot, and hot dipping slot periphery is equipped with hot dipping slot heating mechanism, and the hot dipping slot adds Heat engine structure uses heat-conducting oil heating mode or electric-heating-wire-heating mode, the hot dipping slot to be internally provided with several treatment tubs；

The calender system includes a pair of first hot roll, and a pair of first hot roll is separately fixed at relative distance Adjustable two positions make between it at a distance of micron order distance；

The roller press mechanism is located at right over the calender system, and between the roller press mechanism and the calender system Vertical range is 10cm-20cm；The roller press mechanism includes a pair of second hot roll, and a pair of second hot roll is solid respectively Adjustable two positions of relative distance are scheduled on, are made between it at a distance of micron order distance；Between a pair of second hot roll away from From more than the distance between a pair of described first hot roll, and the surface temperature of a pair of second hot roll is less than described in a pair The temperature of first hot rolling roller surface.

Further, first hot roll and the second hot rolling roller surface are sequentially coated with titanium coating and hard chrome metal Layer.

Further, first hot roll and the chromium metal layer thickness of the second hot rolling roller surface coating are 200-500 μm, Titanium coating thickness is 100-300 μm.

Further, the spray body includes toner feed bin, feeding screw, bringing-up section, atomizer, pneumatics Machine, the toner feed bin are set to above the feeding screw feed end, and described bringing-up section one end is fed with the spiral The discharge end of device is fixedly connected, and the other end is fixedly connected with the atomizer, and the air compressor machine gives institute by air delivering pipeline Atomizer spray pressure is stated, and the spray body by ball screw arrangement sprayed by the movement in prepreg width direction It applies.

Further, the heating melt mechanism uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

Further, the spray body includes toner surge bin, high-temperature high pressure pump, atomizer, the height The feed end of warm high-pressure pump is connect with the toner surge bin, and discharge end is connect with the atomizer, and the spray Applying mechanism, the movement in prepreg width direction is sprayed by ball screw arrangement.

Further, the toner surge bin uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

Further, the thermoplastic resin matrix is acetal resin, polyvinyl resin, Corvic, polypropylene Resin, polystyrene resin, modified polystyrene resin, polyamide, polyester resin, polyethylene terephthalate tree Fat, polybutylene terephthalate (PBT) resin, polycarbonate resin or polyimides.

A kind of preparation method of continuity thermoplastic resin matrix fiber prepreg material, includes the following steps：

(1) carbon fiber extends yarn releasing：Carbon fiber wire ingot is extended by carbon fibre tow expansion equipment first, is formed Carbon fibre tow, carbon fibre tow quilt after carbon fibre tow creel and guide roller respectively under the effect of the first draft gear It arranges and is oriented to；

(2) impregnated carbon fiber：Carbon fibre tow after the guiding obtained in step (1) enters hot dipping device, and passes through successively Treatment tub advance is crossed, toner is put into hot dipping slot, toner melts under the effect of hot dipping slot heating mechanism, wherein The heating temperature of hot dipping slot heating mechanism is higher than the melting temperature of resin in hot dipping slot, and the resin after fusing is before carbon fibre tow Into being impregnated into the process on carbon fibre tow top and bottom；

(3) surface spraying：The prepreg primary product obtained in step (2) under the draw of the second draft gear, Successively by being passed through between a pair of second hot roll between a pair of first hot roll, and spray body is located at calender Between structure and roller press mechanism, surface coating is carried out to the prepreg primary product of advance；Wherein, a pair of first hot roll is to preimpregnation Expect the opposite direction rotation that primary product are advanced, the resin progress to the prepreg primary product excess surface that step (2) obtains Squeeze infiltration, the opposite direction rotation that a pair of second hot roll advances to prepreg, to the prepreg primary product table after spraying The resin in face carries out extruding arrangement；

(4) product cools down：Prepreg is obtained in step (3) enters cooling through outlet roller under the effect of the second draft gear Case is cooled down in cooler bin；

(5) traction winding：Step (4) prepreg after cooling completes winding under wind-up roll effect, while prepreg is thick It spends testing agency and thickness uniformity detection is carried out to prepreg before winding.

Further, melting point resin temperature is 10 DEG C -25 DEG C high in the surface temperature specific heat immersion trough of first hot roll, institute The surface temperature for stating the second hot roll is 30 DEG C -50 DEG C lower than the surface temperature of first hot roll.

The advantages of the utility model and good effect are：

1, hot resin of the utility model after carrying out dipping fusing to carbon fiber first after carbon fiber extends yarn releasing, makes carbon Silvalin upper and lower surface and impregnated inside are covered with hot resin, are squeezed through the first hot roll so that hot resin, which fully infiltrates, arrives carbon fiber In gap between silk, and remove the extra hot resin in carbon fiber yarn two sides, and can be by between a pair of first hot roll of adjusting Distance controls the amount of the hot resin infiltrated between carbon fiber wire；Spray body can spray prepreg primary product surface It applies, achieve the purpose that increase again the content of resin in prepreg or increases resin types in prepreg, and by controlling mist The amount for changing the resin of the controllable spraying of injection rate of nozzle, makees last extruding to prepreg through the second hot roll and infiltrates, make The resin distribution on prepreg surface is uniform；

2, the utility model melts resin by using hot dipping slot, so that resin is full of between carbon fiber wire, then pass through hot rolling The mode that roller squeezes infiltration makes resin be uniformly dispersed with carbon fiber wire, can overcome caused by hot-rolling melting dipping method for a long time Heating makes thermo-roll surface deformation, prepreg surface resin obtained be unevenly distributed, insufficient strength is good, and cannot prepare larger wide cut Prepreg；

3, in T700 grade carbon fibers silk prepreg made from the utility model resin content can down to 30%-45%, and Its lamination plywood tensile strength obtained can be up to 2800MPa-3500MPa；In T300 grade carbon fibers silk prepreg obtained Proportion of resin present commercial product it is low, and its lamination plywood tensile strength obtained and interlaminar shear strength are than commercial product It is high.

Description of the drawings

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings only design for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

The continuity thermoplastic resin matrix fiber prepreg material that Fig. 1 provides for the utility model embodiment 1 prepares production line Schematic diagram；

The continuity thermoplastic resin matrix fiber prepreg material that Fig. 2 provides for the utility model embodiment 2 prepares production line Schematic diagram；

In figure：

1, carbon fibre tow expansion equipment 2, carbon fibre tow creel

3, guide roller 4, the first draft gear

5, hot dipping device 6, calender system

7, spray body 8, roller press mechanism

9, outlet roller 10, cooler bin

11, the second draft gear 12, prepreg thickness detection mechanism

13, wind-up roll 14, hot dipping slot

15, hot dipping slot heating mechanism 16, treatment tub

17, the first hot roll 18, the second hot roll

19, toner feed bin 20, feeding screw

21, atomizer 22, bringing-up section

23, toner surge bin 24, high-temperature high pressure pump

25, air compressor machine

Specific implementation mode

Firstly, it is necessary to which explanation, illustrates the concrete structure, feature of the utility model by by way of example below With advantage etc., however what all descriptions were intended merely to illustrate, and should not be construed as forming the utility model and appoint What is limited.In addition, the arbitrary single technical characteristic for being described by or implying in each embodiment mentioned by this paper, or it is shown Or implicit arbitrary single technical characteristic in the drawings, still can continue between these technical characteristics (or its equivalent) into The arbitrary combination of row is deleted, to obtain more other embodiments of the utility model that may do not referred to directly herein. In addition, for the sake of simplifying drawing, same or like technical characteristic may be indicated only at one in the same figure.

It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, in addition, term " comprising " and " having " and their any deformation, it is intended that covering is not arranged His includes to be not necessarily limited to clearly for example, containing the process of series of steps or unit, method, system, product or equipment Those of list step or unit, but may include not listing clearly or for these processes, method, product or equipment Intrinsic other steps or unit.

It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter Change description, do not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area Divide description, is not understood to indicate or imply relative importance.

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.

Below just the utility model is illustrated in conjunction with Fig. 1 to Fig. 2.

Embodiment 1

As shown in Figure 1, a kind of continuity thermoplastic resin matrix fiber prepreg material provided in this embodiment prepares production line, According to the trend of silvalin, the production line for preparing is by carbon fibre tow expansion equipment 1, carbon fibre tow creel 2, guide roller 3, the first draft gear 4, hot dipping device 5, calender system 6, spray body 7, roller press mechanism 8, outlet roller 9, cooler bin 10, second Draft gear 11, prepreg thickness detection mechanism 12, wind-up roll 13 are connected composition successively；

The hot dipping device 5 includes hot dipping slot 14, and 14 periphery of the hot dipping slot is equipped with hot dipping slot heating mechanism 15, the heat Immersion trough heating mechanism 15 uses heat-conducting oil heating mode or electric-heating-wire-heating mode, if the hot dipping slot 14 is internally provided with dry finishing Roller 16；

The calender system 6 includes a pair of first hot roll 17, and a pair of first hot roll 17 is separately fixed at phase It adjusts the distance adjustable two positions, makes between it at a distance of micron order distance；

The roller press mechanism 8 is located at right over the calender system 6, and the roller press mechanism 8 and the calender system 6 it Between vertical range be 10cm-20cm；The roller press mechanism 8 includes a pair of second hot roll 18, and a pair of second hot rolling Roller 18 is separately fixed at adjustable two positions of relative distance, makes between it at a distance of micron order distance；A pair of second hot rolling The distance between roller 18 is more than the distance between a pair of described first hot roll 17, and the surface of a pair of second hot roll 18 Temperature of the temperature less than a pair of first hot rolling roller surface 17.

It should be pointed out that 17 and second hot roll of the first hot roll, 18 surface is sequentially coated with titanium coating and hard Chromium metal layer.

It should be pointed out that the chromium metal layer thickness of 17 and second hot roll of the first hot roll, the 18 surface coating is 200-500 μm, titanium coating thickness is 100-300 μm.

Further, the spray body 7 includes toner feed bin 19, feeding screw 20, bringing-up section 22, atomization spray First 21, air compressor machine 25, the toner feed bin 19 are set to above 20 feed end of the feeding screw, the bringing-up section 22 1 End is fixedly connected with the discharge end of the feeding screw 20, and the other end is fixedly connected with the atomizer 21, the pneumatics Machine 25 gives the atomizer 21 spray pressure by air delivering pipeline, and the spray body 7 is existed by ball screw arrangement Movement is sprayed in prepreg width direction.

It should be pointed out that the bringing-up section 22 uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

It should be pointed out that the thermoplastic resin matrix is acetal resin, polyvinyl resin, Corvic, gathers Allyl resin, polystyrene resin, modified polystyrene resin, polyamide, polyester resin, polyethylene terephthalate Ester resin, polybutylene terephthalate (PBT) resin, polycarbonate resin or polyimides.

In the present embodiment, the preparation method of continuity thermoplastic resin matrix fiber prepreg material, includes the following steps：

Wherein, melting point resin temperature is 10 DEG C -25 DEG C high in the surface temperature specific heat immersion trough of first hot roll, and described The surface temperature of two hot rolls is 30 DEG C -50 DEG C lower than the surface temperature of first hot roll.

Hot resin of the utility model after carrying out dipping fusing to carbon fiber first after carbon fiber extends yarn releasing, makes carbon fiber Dimension yarn upper and lower surface dipping is covered with hot resin, removes the extra hot resin in carbon fiber yarn two sides through the extruding of the first hot roll, and can lead to The distance between a pair of first hot roll is overregulated to control the amount of the hot resin impregnated in carbon fiber yarn；Spray body can be right Prepreg primary product surface is sprayed, and is reached and is increased the content of resin in prepreg again or increase resin in prepreg The purpose of type, and the amount by controlling the resin of the controllable spraying of injection rate of atomizer, through the second hot roll to pre- Leaching material makees last extruding infiltration, keeps the resin distribution in prepreg uniform；Hot-rolling can be overcome to melt impregnation using this method Long-time heating caused by method makes thermo-roll surface deformation, prepreg surface resin obtained be unevenly distributed, insufficient strength is good, and Larger wide cut prepreg cannot be prepared；

It should be noted that the carbon fibre tow expansion equipment 1, prepreg thickness detection mechanism 12 in the utility model are divided It has not been discussed in detail in apllied patent CN201621335589.1, CN201720058289.1 of the applicant, herein not It repeats again, but does not interfere with the repetition of those skilled in the art due to the above reasons,；In addition, the first draft gear 4 and Two draft gears 11 are the traction module that common carry-over pinch rolls are constituted, and existing carry-over pinch rolls arrangement mode in the art can be used, only It wants that the draw in the present apparatus can be met；Finally, it is led for the ease of carbon fibre tow creel 2, guide roller 3, first Leading-in device 4, hot dipping device 5, calender system 6, spray body 7, roller press mechanism 8, outlet roller 9, cooler bin 10, the second draft gear 11 isostructural installations can be equipped with some support supplementary structures during installation, be designed when concrete condition is according to installation, Details are not described herein.

Embodiment 2

In the other embodiment of the utility model, continuity thermoplastic resin matrix fiber prepreg material can also be directed to The configuration that production line carries out freedom and flexibility is prepared, so as to give full play of the technical advantage of the utility model.It is just right below This carries out illustrative explanation.

Fig. 2 is preparation of the utility model based on Fig. 1 another continuity thermoplastic resin matrix fiber prepreg material provided The schematic diagram of production line；As shown in Fig. 2, the preparation production of continuity thermoplastic resin matrix fiber prepreg material provided in this embodiment Line is another form of spray body in embodiment 1：The spray body 7 includes toner surge bin 23, high temperature High-pressure pump 24, atomizer 21, the feed end of the high-temperature high pressure pump 24 are connect with the toner surge bin 23, discharging End is connect with the atomizer 21, and the spray body 7 is moved by ball screw arrangement in prepreg width direction It is sprayed, wherein the toner surge bin 23 uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

The other structures of the present embodiment are identical as the structure of embodiment 1, therefore which is not described herein again.

In conjunction with can be seen that continuity thermoplastic resin group provided in this embodiment to the detailed description of the utility model above Body fiber prepreg material prepares production line, in spray module, is melted first to resin, then will by high-temperature high pressure pump 24 Liquid resin is transferred to atomizer 21, in this way can be molten to avoid there may be resins when fusing resin inside atomizer 21 Change incomplete situation so that the resin of ejection is more uniform, improves the quality of prepreg.

Embodiment 3

T300-12k grade carbon fibers, selection polyethylene (abbreviation PE) is selected to prepare prepreg as resin matrix, it is desirable that pre- Resin content in leaching material is 35%.

Carbon fibre tow of the carbon fiber extension yarn releasing after guiding is entered into hot dipping device, and successively by before treatment tub Into, wherein the heating temperature of hot dipping slot heating mechanism is 140 DEG C -145 DEG C, and the PE in hot dipping slot is molten into liquid, after fusing On the gap and carbon fibre tow top and bottom that PE resins are impregnated into during carbon fibre tow advances between carbon fibre tow； Under the draw of the second draft gear, impregnated of PE resins carbon fibre tow successively by a pair of first hot roll it Between passed through between a pair of second hot roll, and spray body is between calender system and roller press mechanism, to advance Prepreg primary product surface carries out PE resin coatings, by controlling extruding force of first hot roll to prepreg primary product Wide cut is realized in prepreg up and down for degree, the spray rate of atomizer, the rate travel of atomizer and atomizer sprinkling The regulation and control of resin content；Wherein, the opposite direction rotation that a pair of first hot roll advances to prepreg primary product, to what is obtained The resin of prepreg primary product excess surface carries out extruding infiltration, the opposite direction that a pair of second hot roll advances to prepreg Rotation, extruding arrangement is carried out to the resin on the prepreg primary product surface after spraying；Wherein, the surface of first hot roll Temperature is 160 DEG C -165 DEG C, and the surface temperature of second hot roll is 110 DEG C -135 DEG C；Prepreg is in the second draft gear Enter cooler bin through outlet roller under effect, is cooled down in cooler bin；Finally, prepreg after cooling is under wind-up roll effect Winding is completed, while prepreg thickness detection mechanism carries out thickness uniformity detection before winding to prepreg.

Embodiment 4

T300-12k grade carbon fibers, selection polypropylene (abbreviation PP) is selected to prepare prepreg as resin matrix, it is desirable that pre- Resin content in leaching material is 35%.

Carbon fibre tow of the carbon fiber extension yarn releasing after guiding is entered into hot dipping device, and successively by before treatment tub Into, wherein the heating temperature of hot dipping slot heating mechanism is 180 DEG C -185 DEG C, and the PP in hot dipping slot is molten into liquid, after fusing On the gap and carbon fibre tow top and bottom that PP resins are impregnated into during carbon fibre tow advances between carbon fibre tow； Under the draw of the second draft gear, impregnated of PP resins carbon fibre tow successively by a pair of first hot roll it Between passed through between a pair of second hot roll, and spray body is between calender system and roller press mechanism, to advance Prepreg primary product surface carries out PP resin coatings, by controlling extruding force of first hot roll to prepreg primary product Wide cut is realized in prepreg up and down for degree, the spray rate of atomizer, the rate travel of atomizer and atomizer sprinkling The regulation and control of resin content；Wherein, the opposite direction rotation that a pair of first hot roll advances to prepreg primary product, to what is obtained The resin of prepreg primary product excess surface carries out extruding infiltration, the opposite direction that a pair of second hot roll advances to prepreg Rotation, extruding arrangement is carried out to the resin on the prepreg primary product surface after spraying；Wherein, the surface of first hot roll Temperature is 200 DEG C -205 DEG C, and the surface temperature of second hot roll is 150 DEG C -175 DEG C；Prepreg is in the second draft gear Enter cooler bin through outlet roller under effect, is cooled down in cooler bin；Finally, prepreg after cooling is under wind-up roll effect Winding is completed, while prepreg thickness detection mechanism carries out thickness uniformity detection before winding to prepreg.

Embodiment 5

T300-12k grade carbon fibers, selection makrolon (abbreviation PC) is selected to prepare prepreg as resin matrix, it is desirable that Resin content in prepreg is 35%.

Carbon fibre tow of the carbon fiber extension yarn releasing after guiding is entered into hot dipping device, and successively by before treatment tub Into, wherein the heating temperature of hot dipping slot heating mechanism is 250 DEG C -255 DEG C, and the PC in hot dipping slot is molten into liquid, after fusing On the gap and carbon fibre tow top and bottom that PC resin is impregnated into during carbon fibre tow advances between carbon fibre tow； Under the draw of the second draft gear, impregnated of PC resin carbon fibre tow successively by a pair of first hot roll it Between passed through between a pair of second hot roll, and spray body is between calender system and roller press mechanism, to advance Prepreg primary product surface carries out PC resin coating, by controlling extruding force of first hot roll to prepreg primary product Wide cut is realized in prepreg up and down for degree, the spray rate of atomizer, the rate travel of atomizer and atomizer sprinkling The regulation and control of resin content；Wherein, the opposite direction rotation that a pair of first hot roll advances to prepreg primary product, to what is obtained The resin of prepreg primary product excess surface carries out extruding infiltration, the opposite direction that a pair of second hot roll advances to prepreg Rotation, extruding arrangement is carried out to the resin on the prepreg primary product surface after spraying；Wherein, the surface of first hot roll Temperature is 270 DEG C -275 DEG C, and the surface temperature of second hot roll is 220 DEG C -245 DEG C；Prepreg is in the second draft gear Enter cooler bin through outlet roller under effect, is cooled down in cooler bin；Finally, prepreg after cooling is under wind-up roll effect Winding is completed, while prepreg thickness detection mechanism carries out thickness uniformity detection before winding to prepreg.

Embodiment 6

T300-12k grade carbon fibers, selection nylon 6 (abbreviation PA6) is selected to prepare prepreg as resin matrix, it is desirable that pre- Resin content in leaching material is 35%.

Carbon fibre tow of the carbon fiber extension yarn releasing after guiding is entered into hot dipping device, and successively by before treatment tub Into, wherein the heating temperature of hot dipping slot heating mechanism is 240 DEG C -245 DEG C, and the PA6 in hot dipping slot is molten into liquid, after fusing PA6 resins be impregnated into gap and carbon fibre tow top and bottom between carbon fibre tow during carbon fibre tow advances On；Under the draw of the second draft gear, impregnated of PA6 resins carbon fibre tow successively by a pair of first hot rolling It is passed through between a pair of second hot roll between roller, and spray body is between calender system and roller press mechanism, to preceding Into prepreg primary product surface carry out PA6 resin coatings, by control the first hot roll prepreg primary product are squeezed Wide cut is realized to preimpregnation up and down for surging, the spray rate of atomizer, the rate travel of atomizer and atomizer sprinkling The regulation and control of resin content in material；Wherein, the opposite direction rotation that a pair of first hot roll advances to prepreg primary product, to To the resin of prepreg primary product excess surface carry out extruding infiltration, a pair of second hot roll advances opposite to prepreg Direction rotates, and extruding arrangement is carried out to the resin on the prepreg primary product surface after spraying；Wherein, first hot roll Surface temperature is 260 DEG C -265 DEG C, and the surface temperature of second hot roll is 210 DEG C -235 DEG C；Prepreg is in the second traction Enter cooler bin through outlet roller under device effect, is cooled down in cooler bin；Finally, prepreg after cooling is made in wind-up roll It is wound with lower completion, while prepreg thickness detection mechanism carries out thickness uniformity detection before winding to prepreg.

Lamination plywood is made by die pressing to prepreg obtained in embodiment 3-6, and to lamination plywood respectively according to I SO14130 fiberglass reinforceds plastics (fiberglass) method for testing shear strength, ASTM D3039 standards carry out lamination plywood interlayer and cut Shearing stress, tensile strength are tested, and obtain that the results are shown in Table 1：

Table 1

And use aircraft industry professional standard (HB) HB7736.5-2004：" material prepreg quantitative measurement side Method " is measured resin content in the prepreg of table 1, measurement result such as table 2：

Table 2

Fiber model	Resin matrix	Resin content measured value (weight ratio) %	Relative error %
				TORAY T300-12K	PE	34.6	1.2
TORAY T300-12K	PP	35.9	-2.5
				TORAY T300-12K	PC	35.6	-1.7
TORAY T300-12K	PA6	34.3	2.0

Wherein, the calculation formula of relative error is:

(35- resin contents measured value) * 100%/resin content measured value

It can be seen that by 2 data of table, the resin content in the prepreg made from the device and method in the application is opposite accidentally Difference is no more than 3%, is well positioned to meet resin content required precision in modern prepreg product.

In addition, also having purchased the preimpregnation prepared respectively as resin matrix and T300-12k grade carbon fibers using PE, PP, PC, PA6 Material, wherein resin content is 50%, and to being laminated plywood made of prepreg respectively according to I SO14130 fiberglass reinforced plastics (fiberglass) method for testing shear strength, ASTM D3039 standards carry out lamination plywood interlaminar shear strength, tensile strength carries out Test, obtains that the results are shown in Table 3：

Table 3

Consolidated statement 1 and table 3, the tensile strength and interlayer that prepreg obtained reaches when resin content is 35% in table 1 Shear strength is above commercial product in table 3, and resin content is lower in prepreg, and the quality of prepreg is lighter, accordingly Prepreg be applied in product so that the quality of product is lighter, this for prepreg subsequent applications it is very advantageous , and the direction of carbon fiber prepreg development now and requirement.

Embodiment 7

In addition, also respectively with PE, PP, PC, PA6, polyimides (abbreviation P I) for resin matrix and T700-12k grades of carbon fibers Dimension is prepared for prepreg, and wherein resin content requires to be 35%, and to being laminated plywood made of prepreg respectively according to I SO14130 fiberglass reinforceds plastics (fiberglass) method for testing shear strength, ASTM D3039 standards carry out lamination plywood interlayer and cut Shearing stress, tensile strength are tested, and obtain that the results are shown in Table 4：

Table 4

As can be seen from Table 4, it is prepared respectively as resin matrix and T700-12k grade carbon fibers using PE, PP, PC, PA6, P I Prepreg, when resin content is down to 35% tensile strength respectively reached 2300MPa, 2250MPa, 2950MPa, 2800MPa, 3490MPa, realize reduces resin content as far as possible under the premise of keeping higher tensile strength, to subtract Light prepreg quality, is conducive to prepreg and requires the higher occasion of lighter weight, intensity for space flight etc..

The utility model is described in detail in above example, but the content is only the preferable reality of the utility model Example is applied, should not be considered as limiting the scope of the present invention.Equalization made according to the scope of application of this utility model Variation and improvement etc., should all still belong within the patent covering scope of the utility model.

Claims

1. a kind of continuity thermoplastic resin matrix fiber prepreg material prepares production line, it is characterised in that：According to walking for silvalin To the production line for preparing is by carbon fibre tow expansion equipment, carbon fibre tow creel, guide roller, the first draft gear, warm Bath unit, calender system, spray body, roller press mechanism, outlet roller, cooler bin, the second draft gear, prepreg Thickness sensitivity machine Structure, wind-up roll are connected composition successively；

The hot dipping device includes hot dipping slot, and hot dipping slot periphery is equipped with hot dipping slot heating mechanism, the hot dipping slot heater Structure uses heat-conducting oil heating mode or electric-heating-wire-heating mode, the hot dipping slot to be internally provided with several treatment tubs；

The calender system includes a pair of first hot roll, and to be separately fixed at relative distance adjustable for a pair of first hot roll Two positions, make between it at a distance of micron order distance；

The roller press mechanism is located at right over the calender system, and vertical between the roller press mechanism and the calender system Distance is 10cm-20cm；The roller press mechanism includes a pair of second hot roll, and a pair of second hot roll is separately fixed at Adjustable two positions of relative distance make between it at a distance of micron order distance；The distance between a pair of second hot roll is big In the distance between a pair of described first hot roll, and the surface temperature of a pair of second hot roll is less than a pair described first The temperature of hot rolling roller surface.

2. a kind of continuity thermoplastic resin matrix fiber prepreg material according to claim 1 prepares production line, feature It is：First hot roll and the second hot rolling roller surface are sequentially coated with titanium coating and hard chrome metal layer.

3. a kind of continuity thermoplastic resin matrix fiber prepreg material according to claim 2 prepares production line, feature It is：First hot roll and the chromium metal layer thickness of the second hot rolling roller surface coating are 200-500 μm, titanium coating thickness It is 100-300 μm.

4. being produced according to a kind of preparation of continuity thermoplastic resin matrix fiber prepreg material of claim 1-3 any one of them Line, it is characterised in that：The spray body includes toner feed bin, feeding screw, bringing-up section, atomizer, air compressor machine, The toner feed bin is set to above the feeding screw feed end, described bringing-up section one end and the feeding screw Discharge end is fixedly connected, and the other end is fixedly connected with the atomizer, and the air compressor machine gives the mist by air delivering pipeline Change nozzle spray pressure, and the movement in prepreg width direction is sprayed the spray body by ball screw arrangement.

5. a kind of continuity thermoplastic resin matrix fiber prepreg material according to claim 4 prepares production line, feature It is：The bringing-up section uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

6. being produced according to a kind of preparation of continuity thermoplastic resin matrix fiber prepreg material of claim 1-3 any one of them Line, it is characterised in that：The spray body includes toner surge bin, high-temperature high pressure pump, atomizer, and the high temperature is high The feed end of press pump is connect with the toner surge bin, and discharge end is connect with the atomizer, and the flush coater By ball screw arrangement, the movement in prepreg width direction is sprayed structure.

7. a kind of continuity thermoplastic resin matrix fiber prepreg material according to claim 6 prepares production line, feature It is：The toner surge bin uses heat-conducting oil heating mode or electric-heating-wire-heating mode.

8. according to a kind of preparation of continuity thermoplastic resin matrix fiber prepreg material of 1,2,3,5,7 any one of them of claim Production line, it is characterised in that：The thermoplastic resin matrix is acetal resin, polyvinyl resin, Corvic, polypropylene Resin, polystyrene resin, modified polystyrene resin, polyamide, polyester resin, polyethylene terephthalate tree Fat, polybutylene terephthalate (PBT) resin, polycarbonate resin or polyimides.