CN111923446A - Wide-width continuous fiber thermoplastic resin pre-impregnation equipment and production process thereof - Google Patents
Wide-width continuous fiber thermoplastic resin pre-impregnation equipment and production process thereof Download PDFInfo
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- CN111923446A CN111923446A CN202011068763.1A CN202011068763A CN111923446A CN 111923446 A CN111923446 A CN 111923446A CN 202011068763 A CN202011068763 A CN 202011068763A CN 111923446 A CN111923446 A CN 111923446A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
Abstract
The invention provides wide-width continuous fiber thermoplastic resin preimpregnation equipment which comprises a fiber barrel creel, wherein a fiber splitting device is arranged at the yarn outlet end of the fiber barrel creel, a slurry water tank device is arranged at the yarn outlet end of the fiber splitting device, the fiber splitting device comprises a three-roller device for generating and maintaining fiber tension, a plurality of shaking shafts are horizontally arranged at the yarn outlet end of the three-roller device, the shaking shafts reciprocate perpendicular to the fiber movement direction, and the movement directions of two adjacent shaking shafts are opposite; the digital display type tension controller and the magnetic powder brake are arranged to realize digitization of unwinding tension detection of the fiber cone yarns, so that the tension detection precision is greatly improved, and the unwinding tension of all fiber cone yarn fibers is constant; the adjustment is convenient, the precision is reliable, and time and labor are saved; and the method provides guarantee for finally preparing the wide-spoke unidirectional cloth.
Description
Technical Field
The invention relates to a thermoplastic pre-dipping machine.
In particular to a wide-width continuous fiber thermoplastic resin pre-dipping device and a production process thereof.
Background
The thermoplastic composite material is introduced for the first time in the composite material forum in 2008 to be an advanced composite material, the prepreg in the composite material field is a semi-finished product material, the thermosetting resin carbon fiber prepreg appears for the first time in 1998, the thermosetting resin is epoxy resin, and the curing temperature is 120 ℃. Leisure products, such as fishing rods and badminton rackets, are mostly used for manufacturing thermosetting carbon fiber prepreg, and the thermosetting prepreg needs thermosetting prepreg equipment for preparation.
The melting temperature of the high molecular resin required by the thermoplastic composite material is 200-450 ℃, for example, the melting temperature of polyetheretherketone is 350 ℃, the melting temperature of nylon high molecular resin is about 200 ℃, and the melting temperature of the nylon high molecular resin is higher than 200 ℃, which belongs to high-temperature melting, so that the preparation equipment required by the thermoplastic composite material prepreg can normally work under the high-temperature condition and is completely different from a thermosetting composite material prepreg machine, and the production process of the prepreg is completely different.
Taking carbon fiber as an example, the carbon fiber produced by Tokory Japan, model T700-12K, a bundle of fiber consists of 12000 capillary fibers, the external dimension width of the bundle of fiber is about 5mm, the thickness is about 0.1mm, and the bundle of fiber is in a sheet shape. The flowability of the high polymer resin is poor in a high-temperature melting state, so that the surface of each capillary fiber is uniformly adhered with a thin layer of resin, 12000-54 bundles of the resin are arranged into 300mm wide unidirectional cloth, each bundle of the fiber and each bundle of the fiber are required to be connected seamlessly, and the technical difficulty of continuous fiber thermoplastic preimpregnation equipment is far higher than that of thermosetting composite preimpregnation equipment.
The raw materials provided by the polymer resin manufacturer are granular, so that the polymer resin is conveniently impregnated on the surface of the fiber in a molten state, and the polymer resin granules can be considered to be prepared into a resin film with a certain thickness and a width of 300 mm; or a fine-diameter resin fiber yarn; or processed into resin powder with the granularity of 20 microns. Different methods for preparing the thermoplastic resin prepreg are generated according to different physical forms of the resin; the methods of impregnating the fibers with the resin are classified into a film method, a fiber method, a powder electrostatic method, and a powder slurry method.
Comparing the four methods, the method in which the polymer resin impregnates the fiber most effectively is the powder slurry method. Continuous fiber thermoplastic prepreg equipment is developed according to a powder mud method, and besides a resin impregnation method, factors influencing unidirectional cloth forming also have the problem that fiber unwinding tension is consistent. If the fiber unreeling tension is inconsistent, the fiber bundles cannot be connected in a seamless mode completely, and the rejection rate of the unidirectional cloth is increased.
Disclosure of Invention
The invention aims to overcome the defects of the traditional technology and provides wide continuous fiber thermoplastic resin preimpregnation equipment and a production process thereof.
The aim of the invention is achieved by the following technical measures: the utility model provides a broad width continuity fibre thermoplastic resin preimpregnation equipment, includes fibre section of thick bamboo creel, the play yarn end of fibre section of thick bamboo creel is equipped with fibre and divides silk device, the play yarn end that fibre divides silk device is equipped with mud basin device, its characterized in that: the fiber dividing device comprises a three-roller device for generating and maintaining fiber tension, a yarn outlet end of the three-roller device is horizontally provided with a plurality of shaking shafts, the shaking shafts reciprocate perpendicular to the fiber movement direction, and the movement directions of two adjacent shaking shafts are opposite; the slurry water tank device comprises a tank body, wherein a sunken water immersion tank is arranged on the tank body, tank inner guide wheels are arranged at two ends of the water immersion tank, a plurality of dispersing wheels are arranged in the water immersion tank and between the two tank inner guide wheels, and tank outer guide wheels are arranged at two ends of the tank body and outside the water immersion tank.
As an improvement, the three-roller device comprises a first roller wheel, a second roller wheel and a third roller wheel which are arranged below the first roller wheel, wherein the axis of the second roller wheel and the axis of the third roller wheel are on the same horizontal plane, and the second roller wheel and the third roller wheel are positioned on two sides of the first roller wheel.
As a further improvement, the shaking shaft comprises a guide rail, a wire dividing shaft arranged on the guide rail in a sliding mode, the axis of the wire dividing shaft is on the same horizontal plane with the axis of the second roller wheel, and a motor for controlling the reciprocating motion of the wire dividing shaft.
As a further improvement, fibre section of thick bamboo yarn frame includes the frame, be equipped with a plurality of fibre section of thick bamboo yarn dabbers in the frame, fibre section of thick bamboo yarn dabber pass through the bearing housing install in the frame, every the one end of fibre section of thick bamboo yarn dabber all is equipped with magnetic powder brake, and is located one side of bearing housing, fibre section of thick bamboo yarn spindle is located the opposite side of bearing housing is equipped with section of thick bamboo yarn fixing device, still be equipped with digital display tension controller in the frame, digital display tension controller with the magnetic powder brake electricity is connected.
As a further improvement, the cheese fixing device comprises a first pressing plate and a second pressing plate which are arranged on the fiber cheese mandrel, and a butterfly nut for fastening is arranged on the second pressing plate.
As a further improvement, a water spraying pipe is arranged below the dispersing wheel in the soaking tank.
As a further improvement, the soaking tank is provided with a hollow interlayer.
As a further improvement, the yarn outlet end of the slurry water tank device is provided with a hot-press forming part, and the hot-press forming part comprises an upper hot-press roller and a lower hot-press roller which is arranged on the same vertical plane with the upper hot-press roller.
The invention also discloses a production process of the wide-width continuous fiber thermoplastic resin preimpregnation equipment, which is characterized by comprising the following steps of:
the method comprises the following steps: unwinding the fiber cone yarn; 80 standard fiber cone yarns are placed on the fiber cone yarn rack, then a knob is slightly twisted to adjust the current input to the magnetic powder brake, the numbers displayed by the 80 digital display type tension controllers are consistent, and the unreeling tension of the unreeled fibers is consistent;
step two: dividing the fiber; respectively bypassing the fiber bundles obtained in the step one around each shaking shaft, dragging each shaking shaft to reciprocate along the axial direction by the motor, wherein the motion amplitude is very small and is only 1mm, the motion directions of the adjacent shaking shafts are opposite, the fiber bundles are always kept in contact with the shaking shafts along with the forward movement of the fiber bundles, each shaking shaft reciprocates along the direction vertical to the forward movement direction of the fiber bundles, the motion directions of the adjacent shaking shafts are opposite, the fiber appearance changes after one bundle of arranged fiber bundles passes through a plurality of shaking shafts, and the bundle shape is divided into filaments;
step three: thermoplastic polymer resin impregnated fibers; the fibers obtained in the step two enter and are pulled out of the slurry water tank device through the out-tank guide wheel, the in-tank dispersion wheel and the out-tank guide wheel, so that the surface of each capillary fiber is uniformly adhered with thermoplastic polymer resin powder;
step four: drying, preheating and molding; drying and preheating the fibers obtained in the step three, then feeding the fibers into the upper hot pressing roller and the lower hot pressing roller at the temperature of 350 ℃, melting thermoplastic polymer resin powder on the surfaces of the capillary fibers, and then pressing the fibers by the upper hot pressing roller and the lower hot pressing roller to generate thermoplastic carbon fiber unidirectional cloth;
step five: and D, drawing the unidirectional cloth prepared in the step four, detecting the tension, and then rolling the unidirectional cloth.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that:
firstly, the method comprises the following steps: the digital display type tension controller and the magnetic powder brake are arranged to realize digitization of unwinding tension detection of the fiber cone yarns, so that the tension detection precision is greatly improved, and the unwinding tension of all fiber cone yarn fibers is constant; the adjustment is convenient, the precision is reliable, and time and labor are saved; guarantee is provided for finally preparing the wide-spoke unidirectional cloth;
secondly, the method comprises the following steps: the arrangement of the fiber dividing device enables the fiber bundles to be in a loose state after being divided, so that the capillary fibers are not damaged, and a satisfactory fiber dividing effect is obtained;
thirdly, the method comprises the following steps: the temperature of the resin turbid liquid in the water immersion tank is adjusted through circulating cooling water in the interlayer, the temperature of the resin turbid liquid is greatly related to resin sizing, and a water spray pipe arranged in the water immersion tank is connected with a circulating pump, so that the turbid liquid in the water immersion tank is in a flowing state, and high polymer resin powder is enabled to fall on the surface of the capillary fiber;
fourthly: the hot briquetting portion set up and improved go up the hot press roll the temperature of the hot press roll itself down, under the environment of temperature 350 degrees, the polymer resin powder on capillary fibre surface melts, and then the warp goes up the hot press roll down the hot press roll suppression then produces the fine one-way cloth of thermoplasticity carbon, has removed the barrier film among the prior art and has simplified technology, great saving manufacturing cost.
The invention is further described with reference to the following figures and detailed description.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural view of a fiber cone yarn mandrel according to the present invention;
FIG. 3 is a schematic structural view of the fiber dividing apparatus of the present invention;
FIG. 4 is a schematic structural view of the fiber dividing apparatus of the present invention;
FIG. 5 is a schematic structural diagram of the shaking shaft according to the present invention;
fig. 6 is a schematic structural view of the slurry tank apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example (b): as shown in the attached fig. 1-6, the wide continuous fiber thermoplastic resin preimpregnation equipment comprises a fiber bobbin creel 1, a fiber dividing device 2 is arranged at the yarn outlet end of the fiber bobbin creel 1, a slurry water tank device 3 is arranged at the yarn outlet end of the fiber dividing device 2, the fiber dividing device 2 comprises a three-roller device 21 for generating and maintaining fiber tension, five shaking shafts 22 are horizontally arranged at the yarn outlet end of the three-roller device 21, the shaking shafts 22 reciprocate perpendicular to the fiber movement direction, and the movement directions of two adjacent shaking shafts 22 are opposite. The fibers referred to in the present invention may be selected from carbon fibers; glass fibers; aramid fibers, and the like.
As shown in fig. 3 and 4, the three-roller device 21 includes a first roller 211 capable of being adjusted up and down, the first roller 211 can be adjusted up and down in height according to the requirement, a second roller 212 and a third roller 213 are disposed below the first roller 211, the axis of the second roller 212 and the axis of the third roller 213 are on the same horizontal plane, and the second roller 212 and the third roller 213 are located at two sides of the first roller 211; the three-roller device 21 is used as a tension generating and maintaining device. The shaking shaft 22 comprises a guide rail 221, a wire dividing shaft 222 arranged on the guide rail 221 in a sliding manner, wherein the axis of the wire dividing shaft 222 is on the same horizontal plane with the axis of the second roller 212, and a motor for controlling the reciprocating motion of the wire dividing shaft 222, wherein the motor is a servo motor. The servo motor drives the speed reducer, the speed reducer drives the crank 223, the crank 223 drives the connecting rod 224, and the connecting rod 224 drags the shaking shaft 22 to shake horizontally and reciprocally.
The fiber splitting is to split the sheet into a dispersed state, for example, a cross section of a bundle of carbon fibers is split into 15mm, and the capillary fibers are in a loose state. The requirement that the fiber bundle becomes loose after being divided into filaments and the capillary fibers cannot be damaged must be ensured. In order to obtain a satisfactory filament dividing effect, five parallel filament dividing shafts 222 are structurally adopted, fibers respectively bypass each filament dividing shaft 222, the motor 223 drags each filament dividing shaft 222 to reciprocate along the axial direction, the movement amplitude is only 1mm, and the movement directions of the adjacent filament dividing shafts 222 are opposite. The fibers are always kept in contact with the fiber dividing shafts 222 along with the forward movement of the fibers, each fiber dividing shaft 222 reciprocates along the direction perpendicular to the forward movement direction of the fibers, the movement directions of the adjacent fiber dividing shafts 222 are opposite, after a bundle of arrayed fibers passes through a plurality of fibers parallel to the fiber dividing shafts 222, the appearance of the fibers changes, the bundle shape is divided and called as the divided fibers, the divided fibers enter the slurry water tank device 3, and the surface of each capillary fiber is guaranteed to be uniformly adhered with resin powder.
The fiber cone creel 1 comprises a frame, wherein a plurality of fiber cone yarn mandrels 11 are arranged on the frame, fiber cone yarns 12 are placed on each fiber cone yarn mandrel 11, the number of the fiber cone yarns 12 which can be configured on the fiber cone creel 1 is determined according to the size requirement of the width dimension of the prepreg cloth, and 80 fiber cone yarns 12 are arranged. Fibre section of thick bamboo yarn dabber 11 pass through bearing housing 13 install in the frame, every fibre section of thick bamboo yarn dabber 11's one end all is equipped with magnetic powder brake 14, magnetic powder brake 14 is 12NM magnetic powder brake, and is located one side of bearing housing 13, lie in on the fibre section of thick bamboo yarn dabber 11 the opposite side of bearing housing 13 is equipped with section of thick bamboo yarn fixing device 15, still be equipped with digital display tension controller (not shown in the figure) in the frame, digital display tension controller with magnetic powder brake 14 electricity is connected.
As shown in fig. 2, the cheese fixing device 15 includes a first pressing plate 151 and a second pressing plate 152 disposed on the fiber cheese mandrel 11, and a wing nut 153 for fastening is disposed on the second pressing plate 152; the fiber cone 12 is placed on the fiber cone mandrel 11 and fixed by the first pressing plate 151 and the second pressing plate 152 and the wing nut 153.
The unwinding tension of the cheese fiber is regulated and controlled, and the traditional unwinding tension regulation of the cheese fiber is realized by arranging a brake wheel, a brake belt, a tension spring, an adjustable bolt and a nut and the like at the other end coaxial with the fiber cheese 12. The adjusting method is that the nut is rotated to adjust the movement of the bolt, and the tension spring and the brake belt are pulled to brake the brake wheel to adjust the unwinding tension of the unwinding fiber yarn. The adjustable bolts corresponding to each fiber cone yarn 12 move the same distance, and can be regarded as consistent braking force, and the actual adjusting method has a larger error relative to the unreeling tension of each fiber cone yarn 12, so that the adjusting method is time-consuming, labor-consuming and troublesome. According to the invention, through the arrangement of the digital display type tension controller and the magnetic powder brake 14, the unwinding tension detection of 80 fiber cone yarns 12 is introduced into digital detection, so that the inner tension detection precision is greatly improved, the unwinding tension of all cone yarn fibers is constant, and the brake wheel and the brake belt are thoroughly replaced. When the magnetic powder brake works, the digital display type tension controller only needs to slightly twist the knob to adjust the current input to the magnetic powder brake 14, and the digital display type tension controller displays the tension corresponding to the input current. The number displayed by the digital display type tension controller is consistent, the unreeling tension of the unreeled fibers is consistent, the number is clear at a glance, the adjustment is convenient, the precision is reliable, time and labor are saved, and the wide-spoke unidirectional fabric is finally prepared.
As shown in fig. 6, the slurry tank device 3 includes a tank body 31, a concave water immersion tank 32 is disposed on the tank body 31, and the water immersion tank 32 is provided with a hollow interlayer 33. The two ends of the water immersion tank 32 are provided with tank inner guide wheels 34, a dispersion wheel 35 is arranged in the water immersion tank 32 and between the two tank inner guide wheels 34, a water spray pipe 36 is arranged below the dispersion wheel 35 in the water immersion tank 32, and two ends of the tank body 31 are arranged outside the water immersion tank 32 and provided with tank outer guide wheels 37.
The method is characterized in that the thermoplastic high polymer resin impregnated fiber adopts a mud process technology, a hollow interlayer 33 structure is arranged around the water immersion tank 32, the temperature of resin turbid liquid is adjusted through circulating cooling water, loose fibers enter the water immersion tank 32 after the water immersion tank 32 is subjected to filament separation, resin powder is adsorbed on the surface of the fibers, high polymer resin is insoluble in water and is mixed with water to form turbid liquid similar to mud, and the content of the high polymer resin is detected by a concentration meter. The fiber bundle after being divided enters a slurry area through the in-tank guide wheel, moves forward for a certain distance, and then goes out of the water immersion tank 32 through the in-tank guide wheel and the out-tank guide wheel, the water immersion tank 32 is connected with a circulating pump through the water spray pipe, turbid liquid in the water immersion tank 32 is in a flowing state, and high polymer resin powder is enabled to fall on the surface of the capillary fiber and enter a preheating process step.
The yarn outlet end of the slurry water tank device 3 is provided with a hot-press forming part 5, and the hot-press forming part 5 comprises an upper hot-press roller and a lower hot-press roller which is arranged on the same vertical plane with the upper hot-press roller. The hot pressing temperature of the upper hot pressing roller and the lower hot pressing roller is 350 degrees. The upper layer and the lower layer of the fiber number are separated by the polyimide film and the compression roller, so that the PEEK resin is prevented from being adhered to the surface of the hot shaft after melting, an upper and lower isolation film measure is not adopted, the innovation is that the production cost is greatly saved for preparing the thermoplastic prepreg cloth, the surface smoothness of the upper hot pressing roller and the lower hot pressing roller and the temperature of the upper hot pressing roller and the lower hot pressing roller are improved, the PEEK powder on the surfaces of the capillary fibers is melted in an environment with the temperature of 350 ℃, and then the thermoplastic carbon fiber unidirectional cloth is produced by pressing through the upper hot pressing roller and the lower hot pressing roller, so that the isolation film is removed, the process is simplified, and the manufacturing cost is greatly saved.
As shown in the attached figure 1, the production process of the wide-width continuous fiber thermoplastic resin pre-soaking equipment,
the method comprises the following steps: unwinding the fiber cone yarn; 80 standard fiber cone yarns are placed on the fiber cone creel 1, then a knob is slightly twisted to adjust the current input to the magnetic powder brake 14, the numbers displayed by the 80 digital display type tension controllers are consistent, and the unreeling tension of the unreeled fibers is guaranteed to be consistent;
step two: dividing the fiber; respectively bypassing the fiber bundles obtained in the first step around each of the shaking shafts 22, wherein the motor 223 drags each of the shaking shafts 22 to reciprocate along the axial direction, the motion amplitude is very small and is only 1mm, the motion directions of the adjacent shaking shafts 22 are opposite, the fiber bundles are always kept in contact with the shaking shafts 22 along with the forward movement of the fiber bundles, each of the shaking shafts 22 reciprocates along the direction perpendicular to the forward movement of the fiber bundles, the motion directions of the adjacent shaking shafts 22 are opposite, the appearance of the fibers changes after one bundle of arranged fiber bundles passes through a plurality of shaking shafts 22, and the bundle shape is divided to be divided;
step three: thermoplastic polymer resin impregnated fibers; the fibers obtained in the step two enter and are pulled out of the slurry water tank device 3 through the out-tank guide wheel, the in-tank dispersion wheel and the out-tank guide wheel, so that the surface of each capillary fiber is uniformly adhered with thermoplastic polymer resin powder;
step four: drying, preheating and molding; after the fibers obtained in the third step pass through a drying and preheating device 4, the fibers enter an upper hot-pressing roller and a lower hot-pressing roller of a hot-pressing forming part 5 with the temperature of 350 ℃, thermoplastic polymer resin powder on the surfaces of capillary fibers is melted and then is pressed by the upper hot-pressing roller and the lower hot-pressing roller, and thermoplastic carbon fiber unidirectional cloth is generated;
step five: and (4) passing the unidirectional fabric prepared in the step four through a traction device 6, and then carrying out winding of a unidirectional fabric winding device 8 after a tension detection device 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a broad width continuity fibre thermoplastic resin preimpregnation equipment, includes fibre section of thick bamboo creel, the play yarn end of fibre section of thick bamboo creel is equipped with fibre and divides silk device, the play yarn end that fibre divides silk device is equipped with mud basin device, its characterized in that: the fiber dividing device comprises a three-roller device for generating and maintaining fiber tension, a yarn outlet end of the three-roller device is horizontally provided with a plurality of shaking shafts, the shaking shafts reciprocate perpendicular to the fiber movement direction, and the movement directions of two adjacent shaking shafts are opposite; the slurry water tank device comprises a tank body, wherein a sunken water immersion tank is arranged on the tank body, tank inner guide wheels are arranged at two ends of the water immersion tank, a plurality of dispersing wheels are arranged in the water immersion tank and between the two tank inner guide wheels, and tank outer guide wheels are arranged at two ends of the tank body and outside the water immersion tank.
2. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 1, wherein: the three-roller device comprises a first roller wheel, a second roller wheel and a third roller wheel, wherein the second roller wheel and the third roller wheel are arranged below the first roller wheel, the axis of the second roller wheel and the axis of the third roller wheel are on the same horizontal plane, and the second roller wheel and the third roller wheel are located on two sides of the first roller wheel.
3. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 2, wherein: the shaking shaft comprises a guide rail, a wire separating shaft arranged on the guide rail in a sliding mode, the axis of the wire separating shaft and the axis of the second roller wheel are on the same horizontal plane, and a motor used for controlling the wire separating shaft to reciprocate.
4. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 1, wherein: the fiber cone yarn frame comprises a frame, be equipped with a plurality of fiber cone yarn dabbers in the frame, fiber cone yarn dabber pass through the bearing housing install in the frame, every the one end of fiber cone yarn dabber all is equipped with magnetic powder brake, and is located one side of bearing housing, fiber cone yarn spindle is located the opposite side of bearing housing is equipped with section of thick bamboo yarn fixing device, still be equipped with digital display formula tension controller in the frame, digital display formula tension controller with the magnetic powder brake electricity is connected.
5. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 4, wherein: the bobbin yarn fixing device comprises a first pressing plate and a second pressing plate which are arranged on the fiber bobbin yarn mandrel, and a butterfly nut for fastening is arranged on the second pressing plate.
6. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 1, wherein: and a water spraying pipe is arranged below the dispersing wheel in the soaking tank.
7. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 6, wherein: the immersion tank is provided with a hollow interlayer.
8. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 1, wherein: the yarn outlet end of the slurry water tank device is provided with a hot-press forming part, and the hot-press forming part comprises an upper hot-press roller and a lower hot-press roller which is arranged on the same vertical plane with the upper hot-press roller.
9. The wide-width continuous fiber thermoplastic resin pre-dipping equipment as claimed in claim 8, wherein: the hot pressing temperature of the upper hot pressing roller and the lower hot pressing roller is 200-450 degrees.
10. A production process using the prepreg assembly according to any one of claims 1 to 9, characterized in that:
the method comprises the following steps: unwinding the fiber cone yarn; 80 standard fiber cone yarns are placed on the fiber cone yarn rack, then a knob is slightly twisted to adjust the current input to the magnetic powder brake, the numbers displayed by the 80 digital display type tension controllers are consistent, and the unreeling tension of the unreeled fibers is consistent;
step two: dividing the fiber; respectively bypassing the fiber bundles obtained in the step one around each shaking shaft, dragging each shaking shaft to reciprocate along the axial direction by the motor, wherein the motion amplitude is very small and is only 1mm, the motion directions of the adjacent shaking shafts are opposite, the fiber bundles are always kept in contact with the shaking shafts along with the forward movement of the fiber bundles, each shaking shaft reciprocates along the direction vertical to the forward movement direction of the fiber bundles, the motion directions of the adjacent shaking shafts are opposite, the fiber appearance changes after one bundle of arranged fiber bundles passes through a plurality of shaking shafts, and the bundle shape is divided into filaments;
step three: thermoplastic polymer resin impregnated fibers; the fibers obtained in the step two enter and are pulled out of the slurry water tank device through the out-tank guide wheel, the in-tank dispersion wheel and the out-tank guide wheel, so that the surface of each capillary fiber is uniformly adhered with thermoplastic polymer resin powder;
step four: drying, preheating and molding; drying and preheating the fibers obtained in the step three, then feeding the fibers into the upper hot pressing roller and the lower hot pressing roller at the temperature of 350 ℃, melting thermoplastic polymer resin powder on the surfaces of the capillary fibers, and then pressing the fibers by the upper hot pressing roller and the lower hot pressing roller to generate thermoplastic carbon fiber unidirectional cloth;
step five: and D, drawing the unidirectional cloth prepared in the step four, detecting the tension, and then rolling the unidirectional cloth.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112720990A (en) * | 2021-04-02 | 2021-04-30 | 山东国维复合材料科技有限公司 | Thermoplastic material forming control device and control method |
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| CN210635911U (en) * | 2019-08-12 | 2020-05-29 | 安徽金九鼎复合材料有限公司 | Dry integrative device of glass fiber flooding |
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Application publication date: 20201113 |