CN112976611B - Automatic production line of large-width carbon fiber cloth - Google Patents
Automatic production line of large-width carbon fiber cloth Download PDFInfo
- Publication number
- CN112976611B CN112976611B CN202110247638.5A CN202110247638A CN112976611B CN 112976611 B CN112976611 B CN 112976611B CN 202110247638 A CN202110247638 A CN 202110247638A CN 112976611 B CN112976611 B CN 112976611B
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- carbon fiber
- desizing
- furnace body
- fiber cloth
- brush
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 102
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 102
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000004744 fabric Substances 0.000 title claims abstract description 71
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- 238000009990 desizing Methods 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000007598 dipping method Methods 0.000 claims abstract description 33
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000004513 sizing Methods 0.000 claims abstract description 16
- 239000002243 precursor Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 7
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- 239000003292 glue Substances 0.000 claims description 55
- 238000004026 adhesive bonding Methods 0.000 claims description 29
- 238000005470 impregnation Methods 0.000 claims description 22
- 230000010355 oscillation Effects 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
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- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- 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
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0872—Prepregs
- B29K2105/0881—Prepregs unidirectional
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention provides an automatic production line of large-width carbon fiber cloth, which is sequentially connected with a fiber creel, a fiber sizing agent desizing furnace, a gum dipping tank, a heat treatment furnace, a heat setting mold, a cooling mold, a traction device and a winding device along the moving direction of carbon fibers; and a plurality of strands of carbon fiber precursors are drawn from the fiber creel and arranged side by side, and are coagulated into a large-width carbon fiber cloth after passing through a production line. The production line provided by the invention can realize the preparation of the prepreg of the high-performance thermoplastic composite material with the maximum width of 600 mm.
Description
Technical Field
The invention relates to the technical field of carbon fiber material manufacturing equipment, in particular to an automatic production line of large-width carbon fiber cloth.
Background
Common methods for preparing thermoplastic prepregs include solution, hot melt, powder impregnation, suspension impregnation, fiber hybridization, in situ polymerization, and the like. At present, carbon fiber products are mainly used for civil use in the fields of fishing tackle, sports equipment, sports goods, aerospace and the like, and are used for military use in national defense scientific research, rocket manufacturing, missile manufacturing, satellite manufacturing, radar manufacturing, bullet-proof vehicles, bullet-proof vests and other important military products.
Because a series of problems of inconsistent beats, uneven yarn spreading force and the like exist in the conventional production process, the conventional production line cannot realize the production process of the large-width carbon fiber cloth with the width of more than 600mm of the carbon fiber cloth.
Disclosure of Invention
The invention aims to provide an automatic production line of large-width carbon fiber cloth to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic production line of large-width carbon fiber cloth,
a fiber creel, a fiber sizing agent desizing furnace, a gum dipping tank, a heat treatment furnace, a heat setting die, a cooling die, a traction device and a winding device are sequentially connected along the moving direction of the carbon fibers;
and a plurality of strands of carbon fiber precursors are drawn from the fiber creel and arranged side by side, and are coagulated into a large-width carbon fiber cloth after passing through a production line.
As an improvement of the invention, the fiber sizing agent desizing furnace is used for removing sizing agent on carbon fiber precursors, and comprises the following steps:
the carbon fiber composite desizing furnace comprises a desizing furnace body, wherein openings allowing carbon fiber precursors to penetrate through are formed in the opposite side walls of the desizing furnace body;
the desizing heater is horizontally and fixedly arranged on the inner top wall of the desizing furnace body through a screw;
the desizing fan is fixedly arranged above the desizing furnace body and is communicated with the inner cavity of the desizing furnace body;
the device comprises a desizing furnace body, a desizing air inlet, a desizing air outlet, a desizing air inlet and a slurry outlet, wherein the desizing air inlet is arranged below the desizing furnace body and communicated with an inner cavity of the desizing furnace body.
As an improvement of the present invention, the dipping tank is used for dipping carbon fibers after a desizing agent, and includes:
a chassis;
the tank body is of a groove-shaped structure with an opening at the upper end and is fixed on the underframe, and a pressing shaft and a brush roller are transversely and rotatably connected in the tank body;
the brush roll is characterized by comprising a dipping motor, wherein the dipping motor is further arranged on the bottom frame and is in transmission connection with the brush roll.
As an improvement of the present invention, the heat treatment furnace is used for drying the carbon fiber after gum dipping, and includes:
the side wall opposite to the hot furnace body is provided with an opening allowing carbon fibers to penetrate through the opening;
the heat treatment heater is horizontally and fixedly arranged on the inner top wall of the hot furnace body through a screw rod;
the heat treatment fan is fixedly arranged above the heat furnace body and is communicated with the inner cavity of the heat furnace body;
the heat treatment air inlet is arranged below the heat furnace body and communicated with an inner cavity of the heat furnace body.
As an improvement of the present invention, the cooling mold for cooling the carbon fiber cloth includes:
a mold base frame;
the cooling lower die is fixed on the upper end surface of the die chassis through a pressing plate;
the cooling upper die is positioned above the cooling lower die and is connected with the cooling lower die through a hinge;
the lower cooling die and the upper cooling die are both provided with a water inlet and a water outlet;
the carbon fiber cloth is cooled through a gap between the lower cooling die and the upper cooling die.
As an improvement of the invention, a double-sided gluing device is arranged on the glue dipping tank, and comprises:
the guide wheels are fixedly arranged on two sides above the impregnation tank and used for leading the carbon fiber cloth into and out of the impregnation tank;
the turning wheel is fixedly arranged above the impregnation tank and positioned between the two guide wheels, and the turning wheel is used for realizing the turning direction of the carbon fiber cloth;
the two flattening wheels are fixedly arranged in the impregnation tank and are used for flattening the carbon fiber cloth in the impregnation tank;
the first glue containing groove is used for containing the two flattening wheels;
the second glue containing groove is contained by the first glue containing groove and is positioned below the carbon fiber cloth turning-back part;
switch the rubberizing brush, the top in first flourishing gluey groove, the flourishing gluey groove of second all is provided with switches the rubberizing brush, two it is used for carrying out the rubberizing to carbon cloth's two-sided to switch the rubberizing brush.
As an improvement of the invention, the switch size brush comprises:
the inner shell is of a hollow cylindrical structure with openings at two ends;
the two ends of the inner shell are fixedly connected with synchronous ends which are used for being in transmission connection with an external power device;
the inner parts of the two synchronous end heads are provided with mounting notches, and the vibrating semi-cylinders are rotatably mounted in the mounting notches through bearings;
the gluing shell is of a fully-closed hollow cylindrical structure, the gluing shell is used for containing the inner shell, the gluing shell and the synchronous end are integrally formed, and fixed bristles are fixedly connected to the outer peripheral surface of the gluing shell;
the movable bristles are movably arranged on the gluing shell, and at least one row of movable bristles are movably arranged on the gluing shell and matched with the oscillation semi-cylinder through a rotating speed switching assembly.
As an improvement of the present invention, the rotation speed switching component is used for switching the gluing mode according to the rotation speed of the switched gluing brush, and the rotation speed switching component comprises:
the abutting plate abuts against the plane part of the side wall of the oscillating semi-cylinder;
one end of the connecting rod is fixedly connected with the abutting plate, the other end of the connecting rod penetrates through the inner shell and extends to the external space, a first spring is further sleeved on the connecting rod, and the first spring is located between the oscillating semi-cylinder and the inner wall of the inner shell;
the other end of the connecting rod is fixedly connected with a counterweight flat plate, the movable bristles are fixedly arranged on the counterweight flat plate, and the length of the movable bristles is greater than that of the fixed bristles;
the plane part of the side wall of the oscillation semi-cylinder is provided with a rotation stopping groove, and the rotation stopping groove is matched with the abutting plate;
the inner shell is also provided with a constant-speed pull rod in a sliding manner, one end of the constant-speed pull rod is inserted on the oscillating semi-cylinder, the other end of the constant-speed pull rod is fixedly connected with a rotating speed limiting weight, the constant-speed pull rod is also sleeved with a second spring, and the second spring is positioned between the oscillating semi-cylinder and the inner wall of the inner shell;
the constant-speed pull rod is arranged opposite to the connecting rod.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view showing the structure of a desizing furnace for a fiber sizing agent according to the present invention;
FIG. 4 is an internal cross-sectional view of a fiber sizing desizing oven of the present invention;
FIG. 5 is a schematic view of the structure of the dipping tank of the present invention;
FIG. 6 is a front view of the dip tank of the present invention;
FIG. 7 is a schematic view of the structure of the cooling die of the present invention;
FIG. 8 is a side view of the cooling die of the present invention;
FIG. 9 is a schematic view showing the structure of another embodiment of the dipping tank of the present invention;
FIG. 10 is a front cross-sectional view of a switch size brush of the present invention;
FIG. 11 is a side cross-sectional view of the present invention with the switched glue brush in a low speed glue application mode;
FIG. 12 is a side cross-sectional view of the present invention switching the size brush in the fast brush mode;
FIG. 13 is a side cross-sectional view of the present invention switching the size brush in the fast brush mode.
The gluing mode is a low-speed glue spraying mode when the cloth-feeding speed is low, a fast brushing mode when the cloth-feeding speed is high, and a high-speed oscillation mode when the cloth-feeding speed is high
The components in the figure are:
1. a fiber yarn frame is arranged on the frame,
2. a fiber sizing agent desizing furnace 21, a desizing furnace body 22, a desizing heater 23, a desizing fan 24 and a desizing air inlet,
3. a gum dipping tank 31, an underframe 32, a tank body 33, a press shaft 34, a brush roll 35 and a gum dipping motor,
4. a heat treatment furnace 41, a hot furnace body 42, a heat treatment heater 43, a heat treatment fan 44 and a heat treatment air inlet,
5. a heat-setting mold is used for heat-setting,
6. a cooling die 61, a die underframe 62, a cooling lower die 63, a cooling upper die 64, a water inlet 65 and a water outlet,
7. a traction device is arranged on the base plate,
8. a rolling-up device is arranged on the rolling-up device,
9. a double-sided gluing device 91, a guide wheel 92, a turning wheel 93, a flattening wheel 94, a first glue containing groove 95, a second glue containing groove,
96. switching a gluing brush 961, an inner shell 962, a synchronous end 9621, an installation notch 963, a vibration semi-cylinder 9631, a rotation stopping groove 964, a gluing shell 965, fixed bristles 966 and movable bristles,
97. the rotating speed switching assembly comprises a 971 abutting plate, 972 connecting rods, 973 first springs, 974 counterweight flat plates, 975 constant speed pull rods, 976 rotating speed limiting weights, 977 second springs.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to all the drawings, an automatic production line of large-width carbon fiber cloth,
a fiber creel 1, a fiber sizing agent desizing furnace 2, a glue dipping tank 3, a heat treatment furnace 4, a heat setting die 5, a cooling die 6, a traction device 7 and a winding device 8 are sequentially connected along the moving direction of the carbon fibers;
and a plurality of strands of carbon fiber precursors are drawn from the fiber creel 1 and arranged side by side, and are coagulated into a large-width carbon fiber cloth after passing through a production line.
The working principle of the technical scheme is as follows: in order to realize that a plurality of strands of carbon fiber precursors are combined into a whole piece of carbon fiber cloth, the invention provides an automatic production line of large-width carbon fiber cloth, and each device of the production line comprises the following main process flows in the working process: preparing glue solution, drawing and spreading yarns, removing burrs, rolling and dipping, drying, curing, melting and dipping, preheating a die and pressing at high temperature, and rolling by using a roller. Firstly, preparing a suspension glue solution, conveying the glue solution into an impregnation tank, and filling the impregnation tank with the glue solution. Then the carbon fiber yarns are uniformly arranged by a traction yarn spreading device, and burrs on the surface of the carbon fiber yarns are removed in an infrared oven. The continuous carbon fiber tow is roll impregnated in an impregnation tank while squeezing out excess suspension. Then, drying the carbon fiber tows by a heating and curing furnace, and simultaneously melting and impregnating resin into the carbon fiber tows to obtain a carbon fiber reinforced unidirectional tape melting prepreg; preheating the carbon fiber reinforced unidirectional tape by a die and pressing the carbon fiber reinforced unidirectional tape at a high temperature to obtain a carbon fiber reinforced unidirectional tape; and finally, winding the unidirectional tape by a winding machine to obtain a continuous carbon fiber reinforced unidirectional tape composite material product.
The beneficial effects of the above technical scheme are that: the production line provided by the invention can realize the preparation of the prepreg of the high-performance thermoplastic composite material with the maximum width of 600 mm. Meanwhile, the composite prepreg can be used for trial production of different fibers (such as glass fibers, carbon fibers and the like) and different high-temperature-resistant thermoplastic resins (such as PEEK, PEKK, TPI, PPS and the like) prepregs in small batches, and can be applied to compression molding, winding molding and laying processing of high-performance thermoplastic composite materials to meet the research requirements of scientific research projects. The strength of the produced carbon fiber prepreg can reach 6-12 times of that of steel, and the density of the produced carbon fiber prepreg is only one fourth of that of the steel. And the plasticity is good, the die can be made into any shape according to the shape of the die, the forming is easy and convenient to process, and the die has the characteristics of corrosion resistance and long service life.
As an embodiment of the present invention, the fiber sizing agent desizing furnace 2 is used for removing sizing agent on carbon fiber precursors, and includes:
the carbon fiber composite material desizing furnace body 21 is characterized in that openings allowing carbon fiber precursor fibers to penetrate through are formed in the opposite side walls of the desizing furnace body 21;
the desizing heater 22 is horizontally and fixedly arranged on the inner top wall of the desizing furnace body 21 through a screw;
the desizing fan 23 is fixedly arranged above the desizing furnace body 21, and the desizing fan 23 is communicated with the inner cavity of the desizing furnace body 21;
the device comprises a desizing furnace body 21 and a desizing air inlet 24, wherein the desizing air inlet 24 is arranged below the desizing furnace body 21, and the desizing air inlet 24 is communicated with an inner cavity of the desizing furnace body 21.
The working principle and the beneficial effects of the technical scheme are as follows: the carbon fiber precursor is required to be coated with epoxy resin for protection in the production process, the epoxy resin is required to be removed on line, a desizing furnace is required to be equipped for high-temperature burning-off, and the surface epoxy resin and redundant burrs of the fiber carbon fiber filament are removed through an infrared heating area of the fiber desizing furnace.
The desizing heater 22 is provided with an independent temperature measuring and controlling device, and the temperature is adjustable. The furnace door can be opened and closed through the handle, and the sealing performance is good. The desizing air inlet 24 at the lower part of the furnace body is provided with an air inlet air quantity adjustable fan cover, and the desizing fan 23 with adjustable rotating speed is arranged at the upper part of the furnace body to remove waste gas generated when epoxy resin is removed. In the production process, the working temperature of the heating plate and the distance between the desizing heater 22 and the carbon fiber tows can be correspondingly adjusted according to the running speed of the unit, so that the adjustable furnace body power is realized.
As an embodiment of the present invention, the dip tank 3 is used for dipping carbon fibers after removing a sizing agent, and includes:
a chassis 31;
the tank body 32 is of a groove-shaped structure with an opening at the upper end and is fixed on the underframe 31, and a pressing shaft 33 and a brush roller 34 are transversely and rotatably connected in the tank body 32;
a dipping motor 35, wherein the base frame 31 is also provided with the dipping motor 35, and the dipping motor 35 is in transmission connection with the brush roller 34.
The working principle and the beneficial effects of the technical scheme are as follows: the impregnation device is used for impregnating fibers, so that the carbon fiber yarns are fully impregnated to meet the process requirements. The dipping tank 3 is movable, the shaft is arranged on a fixing plate of the dipping tank, the position can be manually disassembled and adjusted, and the position can be changed according to different resin requirements, so that the carbon fiber is fully dipped. The overflow holes are positioned at the two sides of the groove body 32 and are provided with water pipes to prevent the glue solution from overflowing. The brush roller is connected with the motor through a chain, the flowing speed of glue liquid in the glue dipping tank is controlled by adjusting the rotating speed of the brush roller, the precipitation of the glue liquid is prevented, and the brush roller is provided with valves, metal water pipes, quick connectors and the like in corresponding quantity.
As an embodiment of the present invention, the heat treatment furnace 4 is used for drying the carbon fiber after gum dipping, and includes:
the furnace body 41, wherein the opposite side walls of the furnace body 41 are provided with openings for allowing carbon fibers to penetrate through;
a heat treatment heater 42 horizontally fixed on the inner top wall of the furnace body 41 by a screw;
the heat treatment fan 43 is fixedly arranged above the hot furnace body 41, and the heat treatment fan 43 is communicated with the inner cavity of the hot furnace body 41;
the heat treatment air inlet 44 is arranged below the hot furnace body 41, and the heat treatment air inlet 44 is communicated with the inner cavity of the hot furnace body 41.
The working principle and the beneficial effects of the technical scheme are as follows: the heat treatment furnace 4 is used for drying the carbon fiber tow while melting and impregnating the resin into the carbon fiber tow. And obtaining the carbon fiber reinforced unidirectional tape fused prepreg.
The furnace heating is fixed on the furnace body 41 by a heat treatment heater 42 through a screw and a heater chassis. The heat treatment heater 42 is provided with an independent temperature measuring and controlling device, and the temperature can be adjusted. The furnace door can be opened and closed through the handle, and the sealing performance is good. The heat treatment air inlet 44 at the lower part of the furnace body is provided with an air inlet air quantity adjustable fan cover, and the heat treatment fan 43 with adjustable rotating speed is arranged at the upper part of the furnace body to remove the generated waste gas. In the production process, the working temperature of the heating plate and the distance between the heater and the carbon fiber tows can be correspondingly adjusted according to the running speed of the unit, and the power of the furnace body can be adjusted.
An infrared temperature measuring device is arranged at the position, close to the outlet, of the hot furnace body 41, and can measure the temperature data of the product meter in real time. An outlet heater is also arranged at the outlet, so that the product has enough heating length to reach the temperature required by the process all the time.
As an embodiment of the present invention, the cooling die 6 is for cooling the carbon fiber cloth, and includes:
a mold base frame 61;
a cooling lower die 62 fixed to the upper end surface of the die base 61 by a platen;
a cooling upper die 63 located above the cooling lower die 62, wherein the cooling upper die 63 and the cooling lower die 62 are connected by a hinge;
the cooling lower die 62 and the cooling upper die 63 are both provided with a water inlet 64 and a water outlet 65;
the carbon fiber cloth is cooled by passing through a gap between the cooling lower die 62 and the cooling upper die 63.
The working principle and the beneficial effects of the technical scheme are as follows: for cooling and compacting the product, thereby ensuring the size of the product.
The cooling lower die 62 is fixed on the die bottom frame 61 through a pressing plate, the upper die of the cooling die is opened and closed manually through a die handle and a hinge, and the opening height of the die is adjusted through a die cushion block. The cooling die 6 is cooled by cooling water, and is provided with a water inlet 64 and a water outlet 65, and circulates the cooling water.
As an embodiment of the present invention, a first spreading roll group and a second spreading roll group are provided, the first spreading roll group is provided between the fiber creel 1 and the fiber sizing agent desizing furnace 2, and the second spreading roll group is provided between the fiber sizing agent desizing furnace 2 and the dipping tank 3.
The working principle and the beneficial effects of the technical scheme are as follows: first exhibition yarn roller set and second exhibition yarn roller set are the common exhibition yarn device in textile sector, and its purpose provides a fibre tiling station, lets the fibre evenly divide apart. The fiber spreading device is arranged behind the yarn dividing comb. The polished filament spreading rod can adjust the fiber tension and enable the fibers to be maximally spread. The yarn spreading rod is manually adjustable and is arranged on the operation side of the machine. Adopt the change to join in marriage the motor and carry out speed control, carry out operation control on the operation panel touch-sensitive screen for expand required width to the tow of required quantity, the carbon fiber tow accomplishes through exhibition yarn device and pulls exhibition yarn under the traction of carry over pinch rolls, and the surface linear velocity of a plurality of drive rolls of initiative, driven, fixed exhibition yarn roller quantity is adjustable.
As an embodiment of the present invention, a double-sided glue spreading device 9 is disposed on the glue dipping tank 3, and the double-sided glue spreading device 9 includes:
the guide wheels 91 are fixedly arranged on both sides above the impregnation tank 3, and the guide wheels 91 are used for leading the carbon fiber cloth into and out of the impregnation tank 3;
the turning wheel 92 is fixedly arranged above the glue dipping tank 3 and positioned between the two guide wheels 91, and the turning wheel 92 is used for realizing that the carbon fiber cloth has a turning direction;
the two flattening wheels 93 are fixedly arranged in the impregnation tank 3, and the flattening wheels 93 are used for flattening the carbon fiber cloth in the impregnation tank 3;
a first glue containing groove 94 for containing the two flattening wheels 93 therein;
a second glue containing groove 95, which is contained in the first glue containing groove 94, and the second glue containing groove 95 is positioned below the carbon fiber cloth folding part;
switch rubberizing brush 96, the top in first flourishing gluey groove 94, the flourishing gluey groove 95 of second all is provided with switches rubberizing brush 96, two it is used for rubberizing to carbon cloth's two-sided to switch rubberizing brush 96.
As an embodiment of the present invention, the switch size brush 96 includes:
an inner housing 961 having a hollow cylindrical structure with both open ends;
the synchronous end 962 is fixedly connected to two ends of the inner shell 961, and the synchronous end 962 is in transmission connection with an external power device;
an oscillating semi-cylinder 963, wherein mounting notches 9621 are formed in the two synchronizing end 962, and the oscillating semi-cylinder 963 is rotatably mounted in the mounting notches 9621 through a bearing;
a glue coating shell 964 which is a totally-enclosed hollow cylindrical structure, wherein the inner shell 961 is contained in the glue coating shell 964, the glue coating shell 964 and the synchronous end 962 are integrally formed, and fixed bristles 965 are fixedly connected to the outer peripheral surface of the glue coating shell 964;
the movable bristles 966 are movably arranged on the rubber coating shell 964, at least one row of movable bristles 966 is movably arranged on the rubber coating shell 964, and the movable bristles 966 are matched with the oscillating semi-cylinder 963 through a rotating speed switching assembly 97.
As an embodiment of the present invention, the rotation speed switching assembly 97 is used for switching the gluing mode according to the rotation speed of the switching gluing brush 96, and the rotation speed switching assembly 97 comprises:
the abutting plate 971 abuts against the side wall plane part of the oscillating semi-cylinder 963;
a connecting rod 972, one end of which is fixedly connected to the abutting plate 971, and the other end of which penetrates through the inner housing 961 and extends to an external space, wherein a first spring 973 is further sleeved on the connecting rod 972, and the first spring 973 is located between the oscillating semi-cylinder 963 and the inner wall of the inner housing 961;
a counterweight plate 974, the other end of the connecting rod 972 is fixedly connected with the counterweight plate 974, the movable bristles 966 are fixedly arranged on the counterweight plate 974, and the length of the movable bristles 966 is greater than that of the fixed bristles 965;
a rotation stopping groove 9631 is formed in the plane part of the side wall of the oscillation semi-cylinder 963, and the rotation stopping groove 9631 is matched with the abutting plate 971;
a constant-speed pull rod 975 is further slidably disposed on the inner housing 961, one end of the constant-speed pull rod 975 is inserted into the oscillating semi-cylinder 963, the other end of the constant-speed pull rod 975 is fixedly connected to a rotating speed limiting weight 976, a second spring 977 is further sleeved on the constant-speed pull rod 975, and the second spring 977 is located between the oscillating semi-cylinder 963 and the inner wall of the inner housing 961;
the constant velocity tension rod 975 is disposed opposite to the connection rod 972.
The working principle and the beneficial effects of the technical scheme are as follows: the traditional impregnation method is to completely immerse the carbon fiber cloth or other materials to be impregnated into the viscose, namely, the carbon fiber cloth is immersed into the impregnation tank in a certain section of the cloth moving process, and then the redundant viscose is squeezed back into the impregnation tank through a roller, so that double-sided gluing is realized after the carbon fiber cloth is immersed into the viscose and squeezed again. However, the double-sided gluing in the manner has obvious defects that the viscose is inevitably dripped to each place by the carbon fiber cloth belt, the viscose is wasted, the working environment is polluted, and in addition, the thickness of the viscose at each part of the carbon fiber cloth is often inconsistent due to the double-sided gluing manner, so that the final tensile and shearing resistance and other physical properties of the carbon fiber cloth are seriously influenced.
Therefore, the present embodiment provides a double-sided glue coating apparatus 9, which can determine the glue coating mode according to the cloth traveling speed of the carbon fiber cloth, that is, three glue coating modes: the gluing mode is a low-speed glue spraying mode when the cloth feeding speed is low, a quick brushing mode when the cloth feeding speed is high, and a high-speed oscillation mode when the cloth feeding speed is high.
The working process of each mode is as follows:
and (3) a low-speed glue pouring mode: when carbon cloth walk cloth speed when slower, switch rubberizing brush 96 and rotate at a low speed under the drive of motor, fixed brush hair 965 and carbon cloth on rubberizing shell 964 still have certain clearance this moment, every fixed brush hair 965 carries a small amount of viscose after soaking the viscose tank in the rotation process of switching rubberizing brush 96 from this, then when rotating under the effect of centrifugal force, a small amount of viscose is got rid of to carbon cloth, thereby realize drenching gluey effect under the sufficient fixed brush hair 965 effect of quantity. At this time, since the rotating speed of the glue brush 96 is switched to be slower, the centrifugal force of the rotating speed switching assembly 97 is not sufficient (specifically, the centrifugal force of the counterweight flat plate 974 is smaller, the abutting plate 971 is in contact with the oscillating semi-cylinder 963 under the action of the first spring 973, and the movable bristles 966 retract into the glue coating housing 964 and do not participate in the glue coating operation).
Fast brush mode: when the cloth speed of walking of carbon cloth accelerates to the certain degree, switch rubberizing brush 96 intermediate speed under the drive of motor and rotate, fixed brush hair 965 and carbon cloth on rubberizing shell 964 still have certain clearance this moment, every fixed brush hair 965 carries a small amount of viscose after soaking the viscose tank in the rotation in-process of switching rubberizing brush 96 from this, then under the effect of centrifugal force when rotating, a small amount of viscose is got rid of to carbon cloth, thereby realize drenching gluey effect under the sufficient fixed brush hair 965 effect of quantity. At this time, since the rotating speed of the upper rubber brush 96 is switched to be faster, the centrifugal force of the rotating speed switching component 97 is increased (specifically, the centrifugal force of the counterweight flat plate 974 is increased, the abutting plate 971 and the oscillating semi-cylinder 963 are in a separated state under the action of the first spring 973, the movable bristles 966 extend out of the rubber coating shell 964, and at this time, the movable bristles 966 are in direct contact with the carbon fiber cloth, but at the same time, the centrifugal force of the rotating speed limiting weight 976 is insufficient, and at this time, the constant-speed pull rod 975 is still inserted into the oscillating semi-cylinder 963 under the action of the second spring 977). At this time, since the carbon fiber cloth is fast in speed, the glue spraying alone cannot meet the requirement of double-sided gluing, so that the glue spraying of the fixed bristles 965 and the glue brushing of the movable bristles 966 are simultaneously carried out in the mode.
High-speed oscillation mode: when carbon cloth walk cloth speed when accelerating to higher speed, switch rubberizing brush 96 intermediate speed under the drive of motor and rotate, fixed brush hair 965 and carbon cloth on rubberizing shell 964 still have certain clearance this moment, every fixed brush hair 965 carries a small amount of viscose after soaking the viscose tank in the rotation in-process of switching rubberizing brush 96 from this, then under the effect of centrifugal force when rotating, a small amount of viscose is got rid of to carbon cloth, thereby realize drenching gluey effect under the sufficient fixed brush hair 965 effect of quantity. At this time, since the rotation speed of the glue brush 96 is switched faster, the centrifugal force of the rotation speed switching assembly 97 is increased (specifically, the centrifugal force of the weight plate 974 is increased, the abutting plate 971 is separated from the oscillation semi-cylinder 963 under the action of the first spring 973, the movable bristles 966 extend out of the glue coating housing 964, and at this time, the movable bristles 966 are in direct contact with the carbon fiber cloth, meanwhile, the centrifugal force of the rotation speed limiting weight 976 is also large enough, at this time, the constant-speed pull rod 975 is pulled out from the oscillation semi-cylinder 963, and the oscillation semi-cylinder 963 is in a semi-free state, which is mainly due to the presence of the rotation stopping groove 9631, at this time, the rotation amplitude of the oscillation semi-cylinder 963 in the inner housing 961 is not 360 degrees but is approximately 0 to 90 degrees, and the oscillation effect is generated when the oscillation semi-cylinder 963 rotates in an amplitude of 90 degrees, which is more beneficial to spin the glue to the carbon fiber cloth). At this moment, because the walking speed of the carbon fiber cloth is faster, the glue spraying of the single carbon fiber cloth can not meet the requirement of double-sided gluing, the glue spraying of the fixed bristles 965 and the glue brushing of the movable bristles 966 are carried out simultaneously in the mode, and the vibration generated by the vibration of the semi-cylinder 963 is more beneficial to glue throwing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides an automatic production line of big broad width carbon cloth which characterized in that:
a fiber creel (1), a fiber sizing agent desizing furnace (2), a glue dipping tank (3), a heat treatment furnace (4), a heat setting mold (5), a cooling mold (6), a traction device (7) and a winding device (8) are sequentially connected along the moving direction of the carbon fibers;
a plurality of strands of carbon fiber precursors are drawn from the fiber creel (1) and arranged side by side, and are coagulated into a large-width carbon fiber cloth after passing through a production line;
be equipped with two-sided rubber coating device (9) on steeping vat (3), two-sided rubber coating device (9) include:
the guide wheels (91) are fixedly arranged on two sides above the impregnation tank (3), and the guide wheels (91) are used for leading the carbon fiber cloth into and out of the impregnation tank (3);
the direction-changing wheel (92) is fixedly arranged above the glue dipping tank (3) and positioned between the two guide wheels (91), and the direction-changing wheel (92) is used for realizing the turning-back trend of the carbon fiber cloth;
the two flattening wheels (93) are fixedly arranged in the impregnation tank (3), and the flattening wheels (93) are used for flattening the carbon fiber cloth in the impregnation tank (3);
a first glue containing groove (94) for containing the two flattening wheels (93);
a second glue containing groove (95) contained by the first glue containing groove (94), wherein the second glue containing groove (95) is positioned below the carbon fiber cloth folding part;
switch rubberizing brush (96), the top in first flourishing gluey groove (94), the flourishing gluey groove of second (95) all is provided with switches rubberizing brush (96), two switch rubberizing brush (96) and be used for rubberizing carbon cloth's two-sided.
The switch glue brush (96) comprises:
an inner housing (961) having a hollow cylindrical structure with both ends open;
the synchronous end piece (962), the two ends of the inner shell (961) are fixedly connected with the synchronous end piece (962), and the synchronous end piece (962) is used for being in transmission connection with an external power device;
the inner parts of the two synchronous end pieces (962) are provided with installation notches (9621), and the oscillation semi-cylinders (963) are rotatably installed in the installation notches (9621) through bearings;
the gluing shell (964) is of a fully-closed hollow cylindrical structure, the gluing shell (964) contains the inner shell (961), the gluing shell (964) and the synchronous end (962) are integrally formed, and fixed bristles (965) are fixedly connected to the outer peripheral surface of the gluing shell (964);
the movable bristles (966) are movably arranged on the gluing shell (964), at least one row of movable bristles (966) is movably arranged on the gluing shell, and the movable bristles (966) are matched with the oscillating semi-cylinder (963) through a rotating speed switching component (97).
The rotating speed switching component (97) is used for switching a gluing mode according to the rotating speed of the switching gluing brush (96), and the rotating speed switching component (97) comprises:
the abutting plate (971) abuts against the side wall plane part of the oscillating semi-cylinder (963);
one end of the connecting rod (972) is fixedly connected with the abutting plate (971), the other end of the connecting rod penetrates through the inner shell (961) and extends to the external space, a first spring (973) is further sleeved on the connecting rod (972), and the first spring (973) is located between the oscillating semi-cylinder (963) and the inner wall of the inner shell (961);
the other end of the connecting rod (972) is fixedly connected with a counterweight flat plate (974), the movable bristles (966) are fixedly arranged on the counterweight flat plate (974), and the length of the movable bristles (966) is greater than that of the fixed bristles (965);
the plane part of the side wall of the oscillation semi-cylinder (963) is provided with a rotation stopping groove (9631), and the rotation stopping groove (9631) is matched with the abutting plate (971);
the constant-speed pull rod (975), the inner shell (961) is further provided with a constant-speed pull rod (975) in a sliding manner, one end of the constant-speed pull rod (975) is inserted into the oscillation semi-cylinder (963), the other end of the constant-speed pull rod is fixedly connected with a rotating speed limiting weight (976), the constant-speed pull rod (975) is further sleeved with a second spring (977), and the second spring (977) is located between the oscillation semi-cylinder (963) and the inner wall of the inner shell (961);
the constant speed pull rod (975) is arranged opposite to the connecting rod (972).
2. The automatic production line of large-width carbon fiber cloth according to claim 1, wherein the fiber sizing agent desizing furnace (2) is used for removing sizing agent on carbon fiber precursors and comprises:
the carbon fiber composite desizing furnace comprises a desizing furnace body (21), wherein openings allowing carbon fiber precursors to penetrate through are formed in the opposite side walls of the desizing furnace body (21);
the desizing heater (22) is horizontally and fixedly arranged on the inner top wall of the desizing furnace body (21) through a screw;
the desizing fan (23) is fixedly arranged above the desizing furnace body (21), and the desizing fan (23) is communicated with the inner cavity of the desizing furnace body (21);
the device comprises a desizing air inlet (24), wherein the desizing air inlet (24) is formed below the desizing furnace body (21), and the desizing air inlet (24) is communicated with an inner cavity of the desizing furnace body (21).
3. The automatic production line of large-width carbon fiber cloth according to claim 1, wherein the dip tank (3) is used for dipping the carbon fibers after the desizing agent, and comprises:
a chassis (31);
the tank body (32) is of a groove-shaped structure with an opening at the upper end and is fixed on the underframe (31), and a pressing shaft (33) and a brush roller (34) are transversely and rotatably connected in the tank body (32);
the brush roller brush assembly comprises a gum dipping motor (35), wherein a gum dipping motor (35) is further arranged on the bottom frame (31), and the gum dipping motor (35) is in transmission connection with the brush roller (34).
4. The automatic production line of large-width carbon fiber cloth according to claim 1, wherein the heat treatment furnace (4) is used for drying the carbon fibers after gum dipping and comprises:
the heating furnace comprises a heating furnace body (41), wherein openings allowing carbon fibers to penetrate through are formed in the opposite side walls of the heating furnace body (41);
the heat treatment heater (42) is horizontally and fixedly arranged on the inner top wall of the hot furnace body (41) through a screw rod;
the heat treatment fan (43) is fixedly arranged above the hot furnace body (41), and the heat treatment fan (43) is communicated with the inner cavity of the hot furnace body (41);
the heat treatment air inlet (44) is arranged below the hot furnace body (41), and the heat treatment air inlet (44) is communicated with the inner cavity of the hot furnace body (41).
5. The automatic production line of large-width carbon fiber cloth according to claim 1, wherein the cooling die (6) is used for cooling the carbon fiber cloth and comprises:
a mold base frame (61);
a cooling lower die (62) fixed to the upper end surface of the die base frame (61) by a platen;
the upper cooling die (63) is positioned above the lower cooling die (62), and the upper cooling die (63) is connected with the lower cooling die (62) through a hinge;
the cooling lower die (62) and the cooling upper die (63) are both provided with a water inlet (64) and a water outlet (65);
the carbon fiber cloth is cooled by passing through a gap between the lower cooling mold (62) and the upper cooling mold (63).
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| CN115284487B (en) * | 2022-09-28 | 2023-02-17 | 北京玻钢院复合材料有限公司 | Preparation system and preparation method of premix for quartz fiber reinforced phenolic mould pressing part |
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Address after: Building 16, 1036 Tianlin Road, Minhang District, Shanghai Applicant after: Hansu Xiefu black Technology (Shanghai) Co.,Ltd. Address before: Building 16, 1036 Tianlin Road, Minhang District, Shanghai Applicant before: Zheng carbon technology (Shanghai) Co.,Ltd. |
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Effective date of registration: 20220825 Address after: 224300 south side of Panlong Avenue, Panwan Town, Sheyang County, Yancheng City, Jiangsu Province (west side of Jiangsu Xingyang Textile Co., Ltd.) Patentee after: Jiangsu hansu New Material Co.,Ltd. Address before: Building 16, 1036 Tianlin Road, Minhang District, Shanghai Patentee before: Hansu Xiefu black Technology (Shanghai) Co.,Ltd. |
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Address after: 224000 south side of Panlong Avenue, Panwan Town, Sheyang County, Yancheng City, Jiangsu Province (west side of Jiangsu Xingyang Textile Co., Ltd.) Patentee after: Jiangsu Hansu New Materials Co.,Ltd. Country or region after: China Address before: 224300 south side of Panlong Avenue, Panwan Town, Sheyang County, Yancheng City, Jiangsu Province (west side of Jiangsu Xingyang Textile Co., Ltd.) Patentee before: Jiangsu hansu New Material Co.,Ltd. Country or region before: China |