CN114434672A

CN114434672A - Dipping die, dipping method and manufacturing system comprising dipping die

Info

Publication number: CN114434672A
Application number: CN202011199839.4A
Authority: CN
Inventors: 李长金; 高达利; 张师军; 施红伟; 徐凯; 徐萌; 邵静波; 尹华; 吕明福; 侴白舸; 任月明
Original assignee: Sinopec Beijing Research Institute of Chemical Industry; China Petroleum and Chemical Corp
Current assignee: Sinopec Beijing Research Institute of Chemical Industry; China Petroleum and Chemical Corp
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2022-05-06

Abstract

The invention relates to an impregnation die, an impregnation method and a manufacturing system comprising the impregnation die, relates to the technical field of thermoplastic composite material processing, and is used for reducing the breaking amount of continuous fiber fibers and ensuring the integrity of the continuous fibers so as to improve the mechanical property of the material. The high turbulence impregnation die comprises an impregnation die outer body, wherein a wire guide roller is arranged in a die cavity of the impregnation die outer body, the wire guide roller comprises at least one driving wire guide roller, the driving wire guide roller is driven to rotate by a driving device, and the driving wire guide roller is driven to rotate by the driving device instead of being driven by the traction of continuous fibers, so that when the continuous fibers pass through the driving wire guide roller, the driving wire guide roller which is driven to rotate actively is beneficial to reducing the traction tension of the continuous fibers and the friction force between the continuous fibers and the driving wire guide roller, so that the breaking amount of the continuous fibers is reduced, the integrity of the continuous fibers is ensured, the condition that the continuous fibers are broken by pulling is avoided, and the mechanical property of the material is improved.

Description

Dipping die, dipping method and manufacturing system comprising dipping die

Technical Field

The invention relates to the technical field of thermoplastic composite material processing, in particular to a high-turbulence impregnation die, a fiber-reinforced thermoplastic composite material manufacturing system and a fiber-reinforced thermoplastic composite material manufacturing method.

Background

The glass fiber reinforced thermoplastic material is used as a novel material with excellent mechanical properties, fatigue resistance and other characteristics, and is widely applied to various fields of automobiles, chemical engineering, environmental protection, aerospace communication and the like. At present, melt impregnation is a common method for producing glass fiber reinforced thermoplastic materials, and a melt impregnation mould is important equipment for producing the glass fiber reinforced thermoplastic materials. The godet roller traction dipping die is a common dipping die, but the turbulence of molten resin in the common godet roller dipping die is insufficient, so that the infiltration of glass fibers can be reduced; and because the rotation of the godet roller is driven to rotate by the traction of the glass fiber, the glass fiber is easy to be pulled apart. The infiltration die disclosed in patent CN101152767A has insufficient turbulence of molten resin in the die and the godet is passive, reducing the integrity of the glass fibers.

Disclosure of Invention

The invention provides a high turbulence impregnation die, a fiber reinforced thermoplastic composite material manufacturing system and a fiber reinforced thermoplastic composite material manufacturing method, which are used for reducing the breaking amount of continuous fibers and ensuring the integrity of the continuous fibers so as to improve the mechanical property of the material.

According to a first aspect of the invention, the invention provides a high turbulence impregnation die, which comprises an impregnation die outer body, wherein the impregnation die outer body comprises a continuous fiber inlet channel, an impregnation outlet and a melt crack flow channel, and at least one godet roller is arranged in a die cavity of the impregnation die outer body;

wherein the godet is movable between the continuous fiber inlet passage and the impregnation outlet, and/or

The godet roller is movable in a direction perpendicular to a line connecting the continuous fiber inlet passage and the impregnation outlet.

In one embodiment, a first chute is provided on a first inner wall of the outside body of the impregnation die, the first chute extending between the continuous fiber inlet passage and the impregnation outlet, the godet roller moving along the first chute to change its horizontal position inside the outside body of the impregnation die.

In one embodiment, a second sliding groove is further disposed on the first inner wall of the outer body of the impregnation die, the second sliding groove extends in a direction perpendicular to the first sliding groove, and the godet roller moves along the second sliding groove to change its vertical horizontal position in the outer body of the impregnation die.

In one embodiment, the first and second chutes are in communication.

In one embodiment, a first runner and/or a second runner is also provided on a second inner wall of the impregnation die outer body opposite to the first inner wall.

In one embodiment, adjusting devices are disposed at both ends of the godet roller, and are used for adjusting the axial length of the godet roller, wherein the minimum axial length of the godet roller is smaller than the distance between the first inner wall and the second inner wall, and the maximum axial length of the godet roller is larger than the distance between the first inner wall and the second inner wall.

In one embodiment, fixing devices connected to the adjusting device are further disposed at two ends of the godet roller, and the fixing devices are respectively matched with the first sliding chute or the second sliding chute and are used for fixing the godet roller at a predetermined position in the first sliding chute and/or the second sliding chute.

In one embodiment, the impregnation die outer body comprises:

the continuous fiber inlet channel and the impregnation outlet are respectively arranged on two opposite side walls of the impregnation die body; and

and the upper die cover covers the dipping die body, and the molten mass crack runner is arranged on the upper die cover and communicated with the die cavity in the dipping die body.

The high turbulence impregnation die of the present invention can be applied to any existing continuous fiber reinforced thermoplastic composite manufacturing system and preparation technology.

According to a second aspect of the invention, there is provided a fibre reinforced thermoplastic composite manufacturing system comprising a highly turbulent impregnation die as described above.

In one embodiment, the fiber reinforced thermoplastic composite manufacturing system further comprises: the fiber frame, the fiber guide device and the fiber pretreatment device are arranged at the upstream of the adjustable dipping die and are sequentially connected, and the forming die, the cooling water tank, the dryer, the tractor, the granulator and the collection box are arranged at the downstream of the adjustable dipping die and are sequentially connected;

the adjustable dipping die and the forming die are respectively connected with the same melting plasticizing feeding device or different melting plasticizing feeding devices;

the traction machine, the granulator and the melting plasticizing feeding device are all connected with an electric control system.

According to a third aspect of the present invention, the present invention provides a method for impregnating continuous fibers by using the above-mentioned highly turbulent impregnation die, which comprises the following steps:

moving the godet between the continuous fiber inlet channel and the dip outlet, and/or moving the godet in a direction perpendicular to a line connecting the continuous fiber inlet channel and the dip outlet, such that the godet is in a predetermined position;

enabling continuous fibers to enter a die cavity in the impregnation die body from the continuous fiber inlet channel, and enabling a molten mass to enter the die cavity in the impregnation die body from the molten mass crack runner;

passing continuous fibers around said godet rollers in sequence and impregnating in said mold cavity;

and leading the impregnated continuous fibers out of the impregnation outlet.

Compared with the prior art, the invention has the advantages that;

(1) the rotation of the driving godet roller is driven by the driving device rather than the traction of the continuous fibers, so that when the continuous fibers pass through the driving godet roller, the driving godet roller which rotates actively is beneficial to reducing the traction tension of the continuous fibers and the friction force between the continuous fibers and the driving godet roller, the breaking amount of the continuous fibers is reduced, the integrity of the continuous fibers is ensured, the condition that the continuous fibers are broken by pulling is avoided, and the mechanical property of the material is improved.

(2) The blades on the active godet roll and the through holes on the blades can push and disturb the melt in the die cavity, so that the turbulence degree of the melt is enhanced, and the impregnation degree of the continuous fibers is promoted.

Drawings

The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.

FIG. 1 is a cross-sectional cut-away view of a highly turbulent impregnation die in an embodiment of the present invention;

FIG. 2 is a left side view of a highly turbulent impregnation die in an embodiment of the present invention;

FIG. 3 is a schematic view of the configuration of the active godet of FIG. 1;

FIG. 4 is a schematic view of a blade according to a first embodiment of the present invention;

FIG. 5 is a schematic view of a blade according to a second embodiment of the present invention;

FIG. 6 is a schematic view of a third embodiment of a blade according to the present invention;

FIG. 7 is a schematic structural view of a fiber reinforced thermoplastic composite manufacturing system in accordance with an embodiment of the present invention;

FIG. 8 is a schematic structural view of a fiber reinforced thermoplastic composite manufacturing system in another embodiment of the present invention;

FIG. 9 is a schematic view of a forming die structure in accordance with one embodiment of the present invention;

FIG. 10 is a front view of a forming die in accordance with another embodiment of the present invention;

fig. 11 is a left side view of the molding die in the embodiment shown in fig. 10.

Reference numerals:

1-a melt gap runner; 2-dipping the mold outer body; 3-continuous fiber inlet channel; 4-active godet roller; 5-driven godet roller; 6-an impregnation outlet; 7-a drive device; 8-1,8-2, 8-3-leaf; 9-1,9-2, 9-3-via;

11-a fiber frame and a fiber guide device; 12-a fiber pretreatment device; 13-a melting plasticizing feeding device; 14-forming a mould; 15-cooling water tank; 16-a dryer; 17-a tractor; 18-a granulator; 19-a collection box;

141-a core; 142-a jacket; 143-outer cover opening template; 144-a handpiece; 145-docking.

Detailed Description

The invention will be further explained with reference to the drawings.

According to a first aspect of the present invention, as shown in fig. 1 and 2, the present invention provides a high turbulence impregnation die, which comprises an impregnation die outer body 2, wherein the impregnation die outer body 2 comprises a continuous fiber inlet channel 3, an impregnation outlet 6 and a melt gap runner 1, and the continuous fiber inlet channel 3, the impregnation outlet 6 and the melt gap runner 1 are all communicated with a die cavity inside the impregnation die outer body 2.

Wherein, the die cavity of the dipping die outer body 2 is internally provided with a godet roller, the godet roller comprises at least one driving godet roller 4, and the driving godet roller 4 is driven by a driving device 7 to rotate. Because the rotation of the active godet roller 4 is driven by the driving device 7 instead of being driven by the traction of the continuous fibers, when the continuous fibers pass through the active godet roller 4, the active godet roller 4 which actively rotates is beneficial to reducing the traction tension of the continuous fibers and the friction force between the continuous fibers and the active godet roller 4, so that the breaking amount of the continuous fibers is reduced, the integrity of the continuous fibers is ensured, the condition that the continuous fibers are broken by pulling is avoided, and the mechanical property of the material is improved.

Further, the driving device 7 may be a motor, a hydraulic mechanism, a reduction gearbox, or the like that can drive the driving godet roller 4 to rotate.

According to the advancing speed v1 of the continuous fibers (such as long glass fiber reinforced thermoplastic materials or carbon fibers and the like) entering the die cavity of the impregnation die outer body 2, the corresponding tangential speed v2 of the active godet roller 4 can be selected, for example, the tangential speed v2 of the active godet roller 4 is the same as the advancing speed v1 of the continuous fibers, namely v1 is v2, so that the purposes of reducing the breakage and abrasion of the continuous fibers are achieved, the integrity of the continuous fibers can be ensured, the impregnation degree of the continuous fibers is promoted, the impregnation time of the continuous fibers is shortened, and the production efficiency is improved.

Example 1

In the preferred embodiment, as shown in fig. 3 and 4, the ends of the active godet 4 are provided with at least two vanes 8-1, the vanes 8-1 being spaced circumferentially of the active godet 4. As shown in fig. 3, both ends of the driving godet roll 4 are provided with vanes 8-1. As shown in fig. 4, the active godet 4 is provided with four blades 8-1 at each end, and the four blades 8-1 are equally spaced in the circumferential direction of the active godet 4.

As shown in fig. 3, the vanes 8-1 at both ends of the active godet 4 are symmetrically arranged with respect to the center of the active godet 4. When the driving godet roller 4 rotates, the blade 8-1 on the driving godet roller is driven to rotate, and the blade 8-1 can apply a thrust force along the direction of the blade to the molten mass entering the die cavity, so that the molten mass impacts the continuous fibers, and the impregnation degree of the continuous fibers can be increased.

As shown in fig. 4, the radial section of the blade 8-1 is configured in a fan shape (or a triangular shape). In particular embodiments, it has been found that the radial section of the blades 8-1 is fan-shaped to increase the impregnation of the continuous fibers.

Further, a through hole 9-1 is formed in the blade 8-1; or the blade 8-1 is provided with a plurality of through holes 9-1, and the plurality of through holes 9-1 are regularly or irregularly arranged on the blade 8-1. As shown in fig. 4, each of the blades 8-1 is provided with four through holes 9-1. It is understood that the number of through holes on each blade 8-1 may be the same or different; the arrangement of the through holes on each blade 8-1 may be the same or different.

Preferably, the irregularly arranged through holes 9-1 of the blade 8-1 enhance the turbulence of the melt to enhance the impregnation of the continuous fibers.

When the driving godet roller 4 rotates, the blade 8-1 on the driving godet roller is driven to rotate, and the through hole 9-1 on the blade 8-1 disturbs the molten mass in the die cavity, so that the turbulence degree of the molten mass is greatly enhanced, the continuous fiber is promoted to be impregnated, the continuous fiber impregnation time is shortened, and the production efficiency is improved.

In this embodiment, the vanes 8-1 at each end of the active godet roll 4 are located in the same radial cross section

In addition, the active godet 4 and the blade 8-1 thereon may be of an integral or split construction.

Example 2

In this alternative embodiment, as shown in FIG. 5, the blades 8-2 may also be provided as twisted plates, as desired. Specifically, the twisted plate extends spirally in the radial direction of the driving godet 4 to increase the turbulence level of the melt.

Alternatively, the twisted plate may be provided with a through hole penetrating through the thickness direction thereof.

Optionally, a through-hole 9-2 is provided in the twist plate in the radial direction of the active godet 4, extending from one end of the twist plate towards the other end, which is a non-through cut.

Example 3

In this alternative embodiment, as shown in fig. 6, the blades 8-3 are fan-shaped and each blade 8-3 is at a different distance from the end of the active godet 4, in other words, a plurality of blades 8-are helically distributed in the circumferential direction of the active godet 4 to increase the turbulence level of the melt.

In addition, each blade 8-3 can be further provided with a plurality of through holes 9-3 which are regularly or irregularly distributed, and the arrangement mode can be the same as that of embodiment 1, and the description is omitted here.

Further, as shown in fig. 6, the blades 8-3 at both ends of the active godet 4 are symmetrically disposed about the center of the active godet 4.

On the basis of the above embodiments, the present invention also provides preferred embodiments wherein the godets further comprise at least one driven godet 5, the driven godet 5 being driven by the continuous fiber passing through the driving godet 4; or the driven godet roller 5 is connected with the driving godet roller 4 through a belt mechanism, a gear mechanism or a chain mechanism.

As shown in fig. 1, an example is shown with one driving

godet

4 and 2 driven godets 5, where the 2 driven godets 5 are arranged one above the other to extend the impregnation path of the continuous fibers passing through it. The heights of the driving godet roll 4 and the driven godet roll 5 in the mold cavity may be the same or different.

Alternatively, the driven godet 5 may be arranged in the same manner as the driving godet 4, for example, the driven godet 5 may also be provided with vanes with through holes or the like.

Alternatively, the driven godet roll 5 may also take the form of a smooth rod-like structure, the circumferential surface of which may be provided with a ceramic coating to enhance the smoothness of the surface, thereby further reducing the breakage and abrasion of the continuous fibers.

Alternatively, the peripheral surface of the driven godet roller 5 may be further provided with an arc-shaped groove extending in the radial direction thereof, or the peripheral surface of the driven godet roller 5 may have an undulating, corrugated structure, thereby facilitating uniform dispersion of the continuous fibers.

It will be appreciated that the sections of the active godet 5 between the vanes 8 at its ends may also have a ceramic coating.

As described above, the driving godet roller 5 can play a role of pushing and disturbing the melt, and thus the driving godet roller 4 is closer to the melt nip channel 1 than the driven godet roller 5. As shown in fig. 1, a melt nip runner 1 is provided at the front end of an impregnation die outer body 2, and the upper side of a cavity of a driving godet 4 is closer to the melt nip runner 1.

Although the embodiment shown in fig. 1 has the melt nip runner 1 disposed at the front end of the impregnation die outer body 2 and the continuous fiber inlet passage 3 disposed at the side of the impregnation die outer body 2, the positions of the two may be interchanged. That is, the continuous fiber inlet passage 3 is provided at the front end of the impregnation die outer body 2, and the melt nip runner 1 is provided at the side of the impregnation die outer body 2.

Similarly, although in the embodiment shown in fig. 1 the axes of the continuous fiber inlet channel 3 and the impregnation outlet 6 are coincident (or parallel), it will be appreciated that they may be angled or perpendicular.

The continuous fiber inlet channel 3 and the melt gap runner 1 are respectively arranged on two adjacent side walls of the impregnation die outer body 2, and an included angle alpha is formed between the continuous fiber inlet channel 3 and the melt gap runner 1. As shown in fig. 1, the included angle α may be any angle greater than 0 ° and less than 180 °.

In some embodiments, the cross-sectional configuration of the impregnation die outer body 2 is in any suitable configuration, such as rectangular, trapezoidal, or semicircular. Two ends of the driving godet roller 5 can be rotatably connected with the side wall of the dipping die outer body 2, and a sealing layer is arranged at the connecting part to ensure the sealing performance of the die cavity.

According to a second aspect of the present invention, there is provided a fiber reinforced thermoplastic composite manufacturing system comprising the highly turbulent impregnation die described above.

In an exemplary embodiment, as shown in fig. 7 and 8, the fiber reinforced thermoplastic composite material manufacturing system of the present invention includes a fiber frame and guide device 11, a fiber pretreatment device 12, a melt impregnation die 100, a melt plasticizing and feeding device 13, a forming mold 14, a cooling water tank 15, a dryer 16, a tractor 17, a pelletizer 18, a collection box 19, and an electronic control system (not shown) connected in sequence.

Wherein, the fiber sequentially passes through a fiber frame, a fiber guide device 11 and a fiber pretreatment device 12 and then enters a melting impregnation die head 100 for impregnation treatment. The fiber frame and the fiber guide device 11 are used for guiding and untwisting fibers, and the device is provided with an automatic control untwisting device which is linked with a tractor 17 and is respectively and electrically connected with an electric control system (such as a PLC control device).

The fiber pretreatment device 12 is composed of a plurality of groups of heatable tension rollers or a combination of a plurality of groups of heatable tension rollers and a hot drying channel, and is used for pre-dispersing and preheating fibers, and the preheating temperature range is 140 ℃ and 300 ℃. The heating channel adopts one or more combined heating methods of electric heating, infrared heating and microwave heating, but is not limited to the above heating methods.

The combination mode of the tension roller and the hot drying channel enables the tension applied to the fibers when the fibers enter the hot drying channel to be released to a certain degree, so that the fibers with different strengths are adapted, and the fibers with smaller self-strength are prevented from being broken before entering the impregnation die head. The surface of the tension roller in the fiber pretreatment device 12 needs to be subjected to surface ceramic plating treatment to improve the surface roughness and reduce the friction on the fibers.

Preferably, the surface of the tension roller in the fiber pretreatment device 12 needs to be surface-treated to improve the surface roughness and reduce the friction to the fiber, such as surface polishing, surface ceramic plating, etc., and the surface treatment method that can improve the metal surface roughness can be used, but is not limited to the above two surface treatment methods.

The material impregnated through the melt impregnation die 100 is introduced into the molding die 14 to be molded.

The forming die 14 will be described in detail below.

The forming die 14 is used for forming the composite material with the inner-layer and outer-layer composite structure.

In an alternative embodiment, as shown in fig. 9, the forming die 14 is composed of a core 141, an outer sleeve 142, and an outer sleeve die plate 143. The core 141 is positioned inside the casing 142 to form a cavity with the casing 142, and the resin mixture may enter the cavity from the bottom or the top or both sides of the casing 142. The core 141 can move back and forth in the jacket 142, and the pressure of the melt in the cavity is determined by adjusting the size of the cavity space formed. The pressure of the melt in the cavity can also be adjusted by the size of the included angle between the core 141 and the sheath 142. The working principle of the forming die 14 is as follows: after passing through the dipping die 3, a material strip of the inner layer dipping material is formed, is guided to pass through a hole in the middle of the core part 141, then realizes the molding of the composite structure of the inner layer material and the outer layer material in a cavity which is formed by the core part 141 and the outer sleeve 142 and is filled with mixed melt, and finally is led out through an outer sleeve opening template 143.

And an outer cover opening template 143 for adjusting and controlling the flow rate of the outer layer melt. The outer sleeve opening template 143 is of a porous plate structure, and the outer sleeve opening template 143 is a conical through hole with the diameter of 3-6 mm.

In another alternative embodiment, as shown in fig. 10 and 11, the forming die 14 is comprised of a docking station 145 and a head 144. The head 144 is a two-half structure with an internal cavity forming a mold cavity. The melt stream can enter the mold cavity through the access 145 from the bottom, top, and two sides of the head 144. The inner walls of the mold halves have convex and concave damping structures for distributing the melt and varying the pressure of the melt in the mold cavity. The working principle of the forming die 14 is as follows: the material strips of the inner layer impregnation material are formed after passing through the impregnation die 3, are guided to pass through a hole at the inlet of the machine head 144, then the molding of the composite structure of the inner layer material and the outer layer material is realized in the cavities of the two half dies of the machine head 144, which are filled with the mixed melt, and finally are led out through the outlet.

The melt plasticizing material supply device 13 will be described in detail below.

The melt plasticizing material supply device 13 is connected to the melt impregnation die 100 and the molding die 14, respectively.

In some alternative embodiments, as shown in fig. 7, the melt plasticating feeder 13 is a twin screw extruder that is used to melt plasticate material. The double-screw extruder is a co-rotating double-screw extruder, the diameter of the screw is 214mm-1414mm, and the length-diameter ratio is 36:1-44: 1.

The melt plasticized in the extruder is branched by the melt distributor and fed into the melt impregnation die 100 and the forming die 14, respectively, and the respective flow rates are controlled by the melt flow control valves.

In other alternative embodiments, as shown in fig. 8, the melt plasticating feed device 13 includes a first extruder 131 and a second extruder 132. The first extruder 131 is connected to the forming die 14, and the second extruder 132 is connected to the melt impregnation die 100. Their respective melt-plasticized melts are input into the forming die 14 and the melt impregnation die 100 by the first extruder 131 and the second extruder 132, respectively.

In addition, the first extruder 131 and the second extruder 132 may add the same or different materials, and thus may prepare a composite material in which the inner layer and the outer layer are the same or different materials.

Further, the cooling water tank 15, the dryer 16, the tractor 17, the pelletizer 18, and the collection tank 19 are conventional apparatuses or devices known to those skilled in the art, and will not be described in detail herein.

According to a third aspect of the present invention, the present invention provides a method for impregnating continuous fibers by using the above-mentioned high turbulence impregnation die, comprising the following steps:

in the first step, the melt is made to flow from the melt nip runner 1 into the cavity of the dip mold outer body 1.

In the second step, the continuous fibers are introduced into the cavity of the impregnation die outer body 1 from the continuous fiber inlet passage 3 and pass around the active godet roll 4 in the cavity.

Thirdly, selecting the corresponding tangent speed of the driving godet roller 4 according to the advancing speed of the continuous fibers; for example, the speeds of both are made to coincide.

And fourthly, driving the driving godet roller 4 to rotate through the driving device 7 so as to drive the blades 8 on the driving godet roller 4 to rotate, thereby pushing and disturbing the molten mass to improve the impregnation degree of the continuous fibers.

And fifthly, enabling the continuous fibers to sequentially pass through a driven godet roller 5, wherein the driven godet roller 5 can be pulled by the continuous fibers to rotate and can also be driven by a driving godet roller 4 to rotate.

And a sixth step of drawing the impregnated continuous fibers out of the impregnation outlet 6 to form a continuous fiber reinforced thermoplastic material having a predetermined shape.

Seventh, the continuous fiber reinforced thermoplastic material having a predetermined shape is subjected to cooling, drawing, pelletizing, and the like to form continuous fiber reinforced thermoplastic resin particles of a certain length.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A high turbulence impregnation die comprises an impregnation die outer body, and is characterized in that the impregnation die outer body comprises a continuous fiber inlet channel, an impregnation outlet and a molten mass crack flow channel, wherein the continuous fiber inlet channel, the impregnation outlet and the molten mass crack flow channel are communicated with a die cavity in the impregnation die outer body;

the dipping die comprises a dipping die outer body, wherein a wire guide roller is arranged in a die cavity of the dipping die outer body, the wire guide roller comprises at least one driving wire guide roller, and the driving wire guide roller is driven to rotate by a driving device.

2. The highly turbulent impregnation die of claim 1, wherein the ends of the active godets are provided with at least two vanes, the vanes being spaced circumferentially along the active godets.

3. Highly turbulent impregnation die as claimed in claim 2, wherein the radial cross section of the blades is configured as a sector or triangle.

4. The highly turbulent impregnation die of claim 2 or 3, wherein said blade is provided with a through hole; or

The blade is provided with a plurality of through holes, and the through holes are regularly or irregularly arranged on the blade.

5. The highly turbulent impregnation die of any of claims 1-3, wherein the godets further comprise at least one driven godet driven by continuous fibers passing over the driving godet; or

The driven godet roller is connected with the driving godet roller through a belt mechanism, a gear mechanism or a chain mechanism.

6. The highly turbulent dipping die as set forth in claim 5 wherein the driving godet is closer to the melt nip channel than the driven godet.

7. The highly turbulent impregnation die of any one of claims 1 to 3, wherein the continuous fiber inlet channel and the melt nip runner are disposed on two adjacent sidewalls of the outer body of the impregnation die, respectively, and an included angle is formed between the continuous fiber inlet channel and the melt nip runner.

8. Highly turbulent impregnation die according to any of claims 1 to 3, wherein the cross-sectional configuration of the impregnation die outer body is rectangular, trapezoidal or semicircular.

9. A fiber reinforced thermoplastic composite manufacturing system comprising a highly turbulent impregnation die as claimed in any one of claims 1 to 8.

10. The fiber reinforced thermoplastic composite manufacturing system of claim 9, further comprising: the fiber frame, the fiber guide device and the fiber pretreatment device are arranged at the upstream of the adjustable dipping die and are sequentially connected, and the forming die, the cooling water tank, the dryer, the tractor, the granulator and the collection box are arranged at the downstream of the adjustable dipping die and are sequentially connected;

11. A method for impregnating continuous fibers using a highly turbulent impregnation die as claimed in any one of claims 1 to 8, comprising the steps of:

the molten mass flows into the die cavity of the outer body of the dipping die from the gap runner of the molten mass,

passing the continuous fibers from the continuous fiber inlet passage into a die cavity of the outer body of the impregnation die and around a drive godet within the die cavity;

selecting the tangent speed of the corresponding active godet roller according to the advancing speed of the continuous fibers;

the driving godet roller is driven by the driving device to rotate so as to drive blades on the driving godet roller to rotate, so that the molten mass is pushed and disturbed to improve the impregnation degree of the continuous fibers.