CN106891518B - A kind of chopped carbon fiber and thermoplastic composite mixing align processing unit - Google Patents
A kind of chopped carbon fiber and thermoplastic composite mixing align processing unit Download PDFInfo
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- CN106891518B CN106891518B CN201710106058.8A CN201710106058A CN106891518B CN 106891518 B CN106891518 B CN 106891518B CN 201710106058 A CN201710106058 A CN 201710106058A CN 106891518 B CN106891518 B CN 106891518B
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- thermoplastic composite
- chopped carbon
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
- B29B7/286—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control measuring properties of the mixture, e.g. temperature, density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/823—Temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Abstract
The present invention relates to what chopped carbon fiber and thermoplastic composite mixed to align processing unit, is mainly used in the 3D printing of carbon fibre material, chopped carbon fiber and resin material mixs and be made it is a kind of can the silk material that prints of thermoplasticity.Mainly by hot melt heating device, air pressure extrusion device, asymmetric uniform stirrer, short carbon nanometer tube fiber polarization treatment device and automatic wire coiling device, this five devices are constituted the device, and wherein the uniform mixing of carbon fibre composite and the polarization process of chopped carbon fiber are two main process of material modification.The present invention improves the uniformity coefficient of chopped carbon fiber and composite material mixing, ensure that the carbon nano tube structure of chopped carbon fiber aligning form and realize the prefabricated of carbon fiber and thermoplastic composite small dimension silk material in the composite.The mechanical performance of carbon fiber structural part printing precision and carbon fiber structural part can be improved in the prefabricated silk material of 3D printing.
Description
Technical field
The present invention relates to what a kind of chopped carbon fiber and thermoplastic composite mixed to align processing unit.
Background technique
In recent years, with the rapid development of 3D printing technique, there has also been new shape forms for carbon fibre material.Currently,
Since there are the influences of impurity in high volume production process for carbon fiber, therefore it is higher to produce continuous longer carbon nanotube needs
Process cost, therefore chopped carbon fiber is still in occupation of biggish carbon fiber market.
Common 3D printing forming technique has: SLA technology, FDM technology, SLS technology, LOM technology and 3DP technology etc..Its
Middle FDM is most common technology in 3D printing, because its operating cost is low, print quality is good, forming accuracy is high, material category mostly and after
Phase handles the advantages such as simple, thus is widely used.
In order to realize that the chopped carbon fiber of carbon nanotube form is manufactured by way of 3D printing, there is presently no short
Cut the processing method that aligns of the carbon fiber in thermoplastic composite matrix, the predominantly chopped carbon of currently used method
It is printed after fiber and thermoplastic composite mixing.Chopped carbon fiber is in thermoplastic composite matrix under current hybrid mode
Middle that anisotropic steric form is presented, the mechanical property of the material of carbon fiber is bad under the spread pattern.
Summary of the invention
For the processing problem that short carbon nanometer tube fibre space in thermoplastic composite matrix is orientated, the purpose of the present invention
Be to provide a kind of chopped carbon fiber and thermoplastic composite mixing aligns processing unit.The device obtains optimization and changes
The carbon fibre composite silk material of property may be directly applied to high-precision 3D printing carbon fiber structural functor.It is mainly used in carbon fiber
Tie up material 3D printing, chopped carbon fiber and thermoplastic composite are mixed and be made one kind can carry out it is 3D thermoplastic
Material.Carbon nanotube is able to maintain the close-packed arrays form aligned in the device treated silk material, can greatly improve 3D
The mechanical performance of carbon fiber structural part under print form.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of chopped carbon fiber and thermoplastic composite mixing align processing unit, including hot melt heating dress
It sets, air pressure extrusion device, asymmetric uniform stirrer, short carbon nanometer tube fiber polarization treatment device and automatic wire coiling dress
It sets；All devices of the equipment are all installed on the workbench, and workbench requires have good heat-proof quality, all devices
Work is by main controller controls and distribution.Above five devices are controlled by master controller, and the display of interactive is arranged
Screen and button, user can set the heating temperature of material, melt chamber operating air pressure, uniform stirring revolving speed, polarized electric field
The specification of intensity and rewinding reel.The parameter given by user, microprocessor carry out calculation process, realize five above
The Coordination Treatment of device is finally completed the silk material preparation process that chopped carbon fiber thermoplastic composite aligns.
The hot melt heating device is made of melt chamber sealing cover, melt cavity, heating tube and thermocouple, the heating
Pipe is mounted on the bottom of melt cavity, and the temperature of melt cavity is detected by thermocouple, and temperature signal is transmitted to master
On controller, master controller will test temperature signal and input parameter is compared to determine whether heating tube needs to heat, and melt
Material chamber sealing cover is mounted on the top of melt cavity.The position of hot melt heating device need to consider the temperature field heat of whole device
Transmittance process, it is to be ensured that the product in melt chamber is completely melt that material is also to be completely melt in unidirectional transfer tube, squeezes out conduit and goes out
The temperature of mouth position thermoplastic material will be lower than glass transition temperature and slightly be solidified into Filamentous so as to parcel collection below.
The air pressure extrusion device is by pneumatic system, silencer, gas path pipe, melt chamber sealing cover, stirring motor, melts
Expect cavity, adjustment gasket, cone mouth guide sleeve, elastic packing cushion block, wire vent conduit, clamp nut, adjustment gasket, conduit gasket and
Bend pipe of transferring forms, and pneumatic system and melt cavity are realized air circuit connection by the gas path pipe, and silencer is with the shape of pipe screw thread
Formula is connected on the gas outlet of pneumatic system, and during air pressure squeezes out, pneumatic system obtains master controller pressure control letter
Number, gas pressurized processing is carried out to melt cavity by gas path pipe, is realized by melt chamber sealing cover and chamber lid seal washer
The axle portion of the sealing of melt cavity, stirring motor realizes sealing by motor axle sealing ring；The adjustment gasket is located at melt
Cavity and switching bend pipe between, cone mouth guide sleeve and switching bend pipe be connected through a screw thread, elastic packing cushion block be located at cone mouth guide sleeve with
Transfer between bend pipe, on the clamp nut, clamp nut and switching bend pipe are threadedly coupled the wire vent conduit, adjustment gasket and
Conduit gasket is installed between clamp nut and switching bend pipe.The carbon fiber that is chopped in melt chamber may be implemented in air pressure extrusion device
Peacekeeping thermoplastic composite mixture can continue to decline, and realize that mixture gradual change type receives the equal of asymmetric rabbling mechanism
The composite material of even stirring and the molten condition of realizing melt chamber can be with certain flow by polarized electric field and from extruding pipe
Middle extrusion.
The asymmetric uniform stirrer is used by stirring motor, motor fastening bolt and gasket, motor shaft
Sealing ring, the holding screw of motor shaft and shaft coupling junction, shaft coupling, shaft coupling and stir shaft connection place positioning pin, stir
Mix axis, split pin, asymmetric agitating plate and asymmetric fine mesh board group at；The stirring motor by bolt at motor fastening and
Gasket is mounted on melt chamber sealing cover, and motor axle sealing ring is mounted in the shaft of stirring motor and is located at melt chamber
In seal cap sealing slot, the shaft of stirring motor is connected with shaft coupling by holding screw, and shaft coupling and agitating shaft pass through positioning
Pin is attached, and asymmetric agitating plate and asymmetric dusting cover orifice plate pass through split pin and stirring axis connection.Asymmetric is uniform
Agitating device has the thick stirring hole sizer on upper layer and the asymmetric fine ga(u)ge screen of lower layer；Hole sizer is slightly stirred on upper layer can complete bulk
The thick stirring of chopped carbon fiber powder and thermoplastic composite, to avoid the blocking of lower layer's fine ga(u)ge screen.The fine ga(u)ge screen of lower layer is
The hole sizer spread pattern of asymmetric, to guarantee that the mixture of same layer height can flow in the whipping process of a cycle
Different fine ga(u)ge screens is crossed, can realize the uniform stirring of chopped carbon fiber and thermoplastic composite in this way.
The short carbon nanometer tube fiber polarization treatment device be by fastening ferrite, electric field transmitting antenna, inductance loop seclusion set,
Electric transmitter pedestal, primary magnetic coil, secondary magnetic coil, master controller and hex bolts composition；The fastening ferrite and
Electric field transmitting antenna is connected through a screw thread, and inductance loop seclusion set and electric transmitter pedestal are fastened by hex bolts, primary
Magnetic coil is mounted on that inductance loop seclusion is put on and both ends connect on group controller, and secondary magnetic coil is mounted on fastening ferrite
An and termination another termination master controller of electric field transmitting antenna.The short of conduction can be realized moment by emitting high voltage electric field by antenna
Carbon fiber polarization process is cut, the distribution of specific required electric field strength and field depends primarily on molten thermoplastic composite material base
The viscosity and flow regime of matter.Determining for the chopped carbon fiber under molten condition in thermoplastic composite matrix can be realized in this way
It is handled to arrangement, and linear end to end phenomenon is presented in its internal carbon nano-tube fibre, this will greatly promote composite wood
The mechanical property of material.
The automatic wire coiling device is by parcel motor, reel axle sleeve, reel, squeezes out silk material, parcel device pedestal, axial direction
Shifting block, cylinder, pneumatic system, the first cylinder pipeline and the second cylinder pipeline composition；The parcel motor and reel axle sleeve mistake
It is full of cooperation, reel axle sleeve and reel are attached using transition fit, are squeezed out silk material and are wrapped on reel, parcel motor is mounted on
On parcel device pedestal, parcel device pedestal is installed on the workbench, and axial shifting block is mounted on the shaft end of cylinder and axially dials
The shift fork of block is stuck on reel, and cylinder is installed on the workbench, and the first cylinder pipeline and the second cylinder pipeline are installed in gas
On the air distribution hole of dynamic system and cylinder.The extruded velocity matching of silk material in the revolving speed and extruding pipe of parcel motor.Parcel reel
Axial shuttle speed is determined that speed is mainly determined by the high-pressure gas flow of pneumatic element by reel specification and drum speed
It is fixed.
All is easily interchangeable simple part by the part that thermoplastic composite material blocks.Under normal circumstances,
The thermoplastic composite material simply contacted in part when reuse can be heated fusing, will not make to continuous wire vent below
Cheng Tai great influences, and the rear chopped carbon fiber stirred evenly will not generate in the thermoplastic composite matrix of molten condition
Reunite and influences the blocking for squeezing out pipeline.
Thermoplastic composite material in chopped carbon fiber and thermoplastic composite can be used ABS, PLA, PA,
The thermoplastic composites material such as PE, PP and PVC, and carbon fibre material is mainly chopped carbon fiber.
Compared with prior art, the beneficial technical effect of the present invention lies in:
Apparatus of the present invention, which are realized, is directly made into silk material for chopped carbon fiber and thermoplastic composite, in order to which the later period will
The 3D printer that silk material is placed directly on common FDM form carries out the printing of carbon fiber structural part, the compound polarization process side
What formula greatly improved chopped carbon fiber in composite material aligns spatial distribution form, and chopped carbon fiber can be first
Tail connects the fiber continuous type for keeping certain.The present invention can provide beating for chopped carbon fiber form for the 3D printer of FDM form
Print raw material.The high-precision carbon fibre material structural member of 3D printing may be implemented in the device, and the structural member is in the pre- of material
There is good mechanical performance after first aligning processing.
Detailed description of the invention
Fig. 1 is the structural representation for aligning processing unit of chopped carbon fiber and thermoplastic composite mixing of the present invention
Figure.
Fig. 2 is the structure cutting for aligning processing unit of chopped carbon fiber and thermoplastic composite mixing of the present invention
Figure.
Fig. 3 is the polarization structure for aligning processing unit of chopped carbon fiber and thermoplastic composite mixing of the present invention
Figure.
Fig. 4 is the polarization principles for aligning processing unit of chopped carbon fiber and thermoplastic composite mixing of the present invention
Figure.
Fig. 5 is the system principle for aligning processing unit of chopped carbon fiber and thermoplastic composite mixing of the present invention
Figure.
Specific embodiment
Specific embodiments of the present invention are described in detail now in conjunction with attached drawing.
As shown in Figure 1, Figure 2 and Figure 3, the processing that aligns of a kind of chopped carbon fiber and thermoplastic composite mixing fills
It sets, which is characterized in that fine including hot melt heating device, air pressure extrusion device, asymmetric uniform stirrer, short carbon nanometer tube
Tie up polarization treatment device and automatic wire coiling device；All devices of the equipment are all mounted on workbench 1, the requirement of workbench 1
There is good heat-proof quality, the work of all devices is controlled by master controller 2 and distribution.
The hot melt heating device is made of melt chamber sealing cover 6, melt cavity 8, heating tube 29 and thermocouple 30, institute
State the bottom that heating tube 29 is mounted on melt cavity 8, the temperature of melt cavity 8 is detected by thermocouple 30, and by temperature
Signal is transmitted on master controller 2, and master controller 2 will test temperature signal and input parameter is compared to determine heating tube 29
Whether need to heat, melt chamber sealing cover 6 is mounted on the top of melt cavity 8 to realize insulation effect, if heat insulation effect is not
Obviously, asbestos can be wrapped up outside melt cavity 8.
The air pressure extrusion device is by pneumatic system 3, silencer 4, gas path pipe 5, melt chamber sealing cover 6, stirring electricity
Machine 7, melt cavity 8, adjustment gasket 31, cone mouth guide sleeve 32, elastic packing cushion block 33, wire vent conduit 28, clamp nut 34, adjustment
Gasket 35, conduit gasket 36 and switching bend pipe 37 form, and pneumatic system 3 and melt cavity 8 are realized gas by the gas path pipe 5
Road connection, silencer 4 are connected on the gas outlet of pneumatic system 3 in the form of pipe screw thread, during air pressure squeezes out, pneumatically
System 3 obtains 2 pressure control signal of master controller, carries out gas pressurized processing to melt cavity 8 by gas path pipe 5, passes through
Melt chamber sealing cover 6 and chamber lid seal washer 21 realize the sealing of melt cavity 8, and the axle portion of stirring motor 7 is used by motor shaft
Sealing ring 17 realizes sealing；The adjustment gasket 31 is located between melt cavity 8 and switching bend pipe 37, cone mouth guide sleeve 32 and switching
Bend pipe 37 is connected through a screw thread, and elastic packing cushion block 33 is located between cone mouth guide sleeve 32 and switching bend pipe 37, the wire vent conduit
28 on clamp nut 34, and clamp nut 34 and switching bend pipe 37 are threadedly coupled, and adjusts gasket 35 and conduit gasket 36 is equal
It is mounted between clamp nut 34 and switching bend pipe 37.When air pressure reaches preset value, and guarantee that silk material continuously squeezes out
When just solidifying with the silk material of extrusion, master controller 2 will control pneumatic system 3 and realize pulsing packing processing.In extrusion process,
The thermoplastic composite of molten condition is to stablize circulation in squeezing out pipeline.
The asymmetric uniform stirrer is by stirring motor 7, motor fastening bolt and gasket 16, motor shaft
With the holding screw 18, shaft coupling 19, shaft coupling of sealing ring 17, motor shaft and shaft coupling junction and determining for stirring shaft connection place
Position pin 20, agitating shaft 22, split pin 23, asymmetric agitating plate 24 and asymmetric dusting cover orifice plate 25 composition；The stirring motor 7 is logical
It crosses bolt and gasket 16 at motor fastening to be mounted on melt chamber sealing cover 6, motor axle sealing ring 17 is mounted on stirring electricity
In the shaft of machine 7 and it is located in 6 seal groove of melt chamber sealing cover, the shaft and shaft coupling 19 of stirring motor 7 pass through clamp screw
18 connection of nail, shaft coupling 19 and agitating shaft 22 are attached by positioning pin 20, asymmetric agitating plate 24 and asymmetric fine mesh
Plate 25 is connect by split pin 23 with agitating shaft 22.The power of rabbling mechanism is provided by stirring motor 7, stirring motor 7
Power passes to agitating shaft 22 by shaft coupling 19, so that the asymmetric agitating plate 24 and asymmetric on agitating shaft 22 are thin
Sieve tray 25 rotates synchronously, so that the chopped carbon fiber and thermoplastic composite in melt chamber 8 are sufficiently stirred.
It is uniform to switching 37 end of bend pipe in short carbon nanometer tube fiber polarization treatment device referring to Fig. 3 and Fig. 4
Chopped carbon fiber and thermoplastic composite mixture carry out high voltage electric field polarization process.In Fig. 3, ferrite 38 and electric field are fastened
Transmitting antenna 39 is attached by screw thread, and inductance loop seclusion set 40 and electric transmitter pedestal 41 are carried out tightly by hex bolts 44
Gu primary magnetic coil 42 is mounted on inductance loop seclusion set 40 and both ends connect on group controller 2, secondary magnetic coil 43 is installed
On fastening ferrite 38 and one terminates another termination master controller 2 of electric field transmitting antenna 39.On the interface of controller 2,
One end of secondary coil 43 and conductive antenna 39 connect, and other end ground connection, primary coil 42 and secondary coil 43 form electromagnetism coupling
It closes, and the both ends of primary coil 42 are connected with pulse ions device.In the case where the hair of coupling acts on greatly, conductive antenna 39 is as sun
Pole generates higher potential.Under the electric field action of antenna 39, chopped carbon fiber can polarize moment in the mixture of molten condition,
And end to end linear array state is kept, to complete the processing of isotropic, improve the print performance for squeezing out silk material.
Referring to Fig. 4 it is found that the uniform chopped carbon fiber of the coupling and circuit form of primary coil 42 and secondary coil 43 and place
The polarization spread pattern of the carbon nanotube of peacekeeping thermoplastic composite mixture middle short fiber.
Referring to Fig. 3 and Fig. 4 it is found that during specific polarized, adjust antenna 39 and act on switching 37 end of bend pipe
When the size of electric field strength, the gentle flowing velocity extruded of viscosity that integrate molten condition thermoplastic composite is true
It is fixed, the vector correlation of electric field is determined by optimizing.It has to avoid selecting conductive gold during the selection for bend pipe 37 of transferring
Belong to material to prevent the electrostatic screen of the electric field inside appearance.Here some ceramic composites can be selected in switching bend pipe 37.
With continued reference to Fig. 1 and Fig. 2, the automatic wire coiling device is by parcel motor 9, reel axle sleeve 26, reel 10, squeezes out
Silk material 27, parcel device pedestal 11, axial shifting block 12, cylinder 13, pneumatic system 3, the first cylinder pipeline 14 and the second cylinder
Pipeline 15 forms；The parcel motor 9 and reel axle sleeve 26 are interference fitted, reel axle sleeve 26 and reel 10 using transition fit into
Row connection squeezes out silk material 27 and is wrapped on reel 10, and parcel motor 9 is mounted on parcel device pedestal 11, parcel device pedestal
11 are mounted on workbench 1, and axial shifting block 12 is mounted on the shaft end of cylinder 13 and the shift fork of axial shifting block 12 is stuck in reel 10
On, cylinder 13 is mounted on workbench 1, and the first cylinder pipeline 14 and the second cylinder pipeline 15 are installed in 3 He of pneumatic system
On the air distribution hole of cylinder 13.The rotary power of reel 10 is to be provided by parcel motor 9, and there are circumferentially positioned to protect for internal connection
Demonstrate,prove torque transfer.The axial reciprocating movement of reel 10 is controlled by axial shifting block 12, axial shifting block 12 and cylinder 13
Bar shaft end carries out the connection of shape face by four aspects, when reel 10 will take out, stirs the axial realization of shifting block 12 steering by unscrewing
Evacuation.Cylinder 13 realizes air circuit connection by the first cylinder pipeline 14 and the second cylinder pipeline 15 and pneumatic system 3.First gas
Earthen pipe road 14 and the second cylinder pipeline 15 constantly switching inlet, outlet road, to realize the reciprocating movement of reel 10, to ensure silk material 27
It can equably be coiled on reel 10.The revolving speed of parcel motor 9 and the throughput of cylinder 13 are controlled by master controller 2
System, the control of master controller 2 is after interactively inputting silk material characterisitic parameter and reel specification matching primitives by user
It realizes.
With continued reference to Fig. 2, in melt cavity 8, loading surface is the conical surface, in this way the thermoplastic to the biggish molten condition of viscosity
Property composite material there is certain guiding performance, the extrusion of thermoplastic composite easy to accomplish under the action of air pressure inside.
With continued reference to Fig. 2, in melt cavity 8, it is being chopped for diameter 180mm and high 200mm that maximum specification, which may be implemented,
The blending space of carbon fiber and thermoplastic composite material, melt chamber can realize the pre- of 3D printing carbon fibre material structural member
First silk material optimization processing can carry out the forming of FDM high-precision carbon fiber structural member in this way, and be easily achieved carbon fibre material
The flexibility of forming.
Referring to Fig. 5, the course of work of whole device is as follows:
Determine that the relevant parameter of selected materials is (viscous under the glass transition temperature of thermoplastic composite, molten condition
The mesh number of degree and chopped carbon fiber), the specifications parameter and presetting atmospheric pressure value of reel, then the above parameter is passed through
Keyboard or membrane keyboard are input in master controller 2, and at this moment interactive display can show the parameter value and fortune that master controller 2 inputs
Calculate the real-time display operating parameter values of processing (air pressure of melt chamber and temperature value, parcel speed and silk material collect length value).Setting
After complete parameter, the powder raw material of chopped carbon fiber and thermoplastic composite is uniformly deposited in melt cavity 8.Then it closes
Melt chamber sealing cover 6 then clicks the start button of master controller 2, and master controller 2 is powered heating tube 29, heating
The Joule heat of generation is thermally conducted in mixing material by pipe 29 by melt cavity 8.During heating, thermocouple 30 is real-time
The temperature of mixing material in melt cavity 8 is monitored, when reaching the melting temperature of thermoplastic composite, master controller 2 passes through
To the power supply control of heating tube 29 to carry out isothermal holding.Then, master controller 2 powers to stirring motor 7, thus by melt chamber
Mixing material uniform stirring processing in body 8.Pass through the delay process of master controller 2 and guarantees mixing material uniform stirring
Afterwards, master controller 2 is powered pneumatic system 3, and pneumatic system 3 carries out pressurized treatments to melt cavity 8.When melt cavity
When the air pressure value of feedback of baroceptor reaches ideal extrusion operating air pressure, pneumatic system 3 carries out at pressure maintaining melt cavity 8
Reason.During the process of exiting the thread, master controller 2 is powered to polarization device, so that electric field transmitting antenna 39 generates polarization electricity
, polarized electric field makes the chopped carbon fiber in the thermoplastic compound of the molten condition in switching bend pipe 37 generate polarization simultaneously
Holding aligns.When the mixed silk material of chopped carbon fiber and thermoplastic compound to have polarized from 28 air pressure of wire vent conduit
Squeeze out and by hand by come out silk material pre-wound it is a bit of on reel 10 after, master controller 2 to parcel motor 9 carry out PWM
Speed regulation processing, so that it is guaranteed that the revolving speed of the parcel motor 9 of setting, parcel motor 9 is rotated with movable reel 10 to extrusion silk material
It is collected.At the same time, master controller 2 controls pneumatic system 2 and provides air pressure and commutation processing to cylinder 13, in the first cylinder
The axial reciprocating that the commutation of the gas circuit of pipeline 14 and the second cylinder pipeline 15 realizes the axial shifting block 12 of 13 end of cylinder is mobile,
Axial shifting block 12 moves back and forth to realize that the silk material of extrusion can be collected equably on reel 10 with movable reel.Work as silk
Material all squeeze out after, master controller 2 successively closes heat heating device, asymmetric uniform stirrer, air pressure extrusion device,
Short carbon nanometer tube fiber polarization treatment device and automatic wire coiling device.
What chopped carbon fiber of the invention and thermoplastic composite mixed aligns processing unit, can be applied to above
The high-performance FDM silk material illustrated it is prefabricated, can also be applied to the chopped carbon fiber aligned and thermoplastic composite material
Expect the extrusion sprinkler design of polarization process.
Claims (5)
1. what a kind of chopped carbon fiber and thermoplastic composite mixed aligns processing equipment, equipment includes hot melt heating dress
It sets, air pressure extrusion device, asymmetric uniform stirrer, short carbon nanometer tube fiber polarization treatment device and automatic wire coiling dress
It sets, all devices of the equipment are all mounted on workbench (1), and workbench (1) requires have good heat-proof quality, all
The work of device is controlled by master controller (2) and distribution, the short carbon nanometer tube fiber polarization treatment device are by fastening iron
It is oxysome (38), electric field transmitting antenna (39), inductance loop seclusion set (40), electric transmitter pedestal (41), primary magnetic coil (42), secondary
Grade magnetic coil (43), master controller (2) and hex bolts (44) composition；The fastening ferrite (38) and electric field transmitting antenna
(39) it being connected through a screw thread, inductance loop seclusion set (40) and electric transmitter pedestal (41) are fastened by hex bolts (44),
Primary magnetic coil (42) is mounted on inductance loop seclusion set (40) and both ends connect on master controller (2), secondary magnetic coil
(43) it is mounted in fastening ferrite (38) and one terminates electric field transmitting antenna (39) another termination master controller (2).
What 2. chopped carbon fiber according to claim 1 and thermoplastic composite mixed aligns processing equipment,
It is characterized in that, the hot melt heating device is by melt chamber sealing cover (6), melt cavity (8), heating tube (29) and thermocouple
(30) it forms, the heating tube (29) is mounted on the bottom of melt cavity (8), and the temperature of melt cavity (8) passes through thermocouple
(30) it is detected, and temperature signal is transmitted on master controller (2), master controller (2) will test temperature signal and input
Parameter is compared to determine whether heating tube (29) need to heat, and melt chamber sealing cover (6) is mounted on the top of melt cavity (8)
End.
What 3. chopped carbon fiber according to claim 1 and thermoplastic composite mixed aligns processing equipment,
It is characterized in that, the air pressure extrusion device is by pneumatic system (3), silencer (4), gas path pipe (5), melt chamber sealing cover
(6), stirring motor (7), melt cavity (8), adjustment gasket (31), cone mouth guide sleeve (32), elastic packing cushion block (33), wire vent are led
Manage (28), clamp nut (34), adjustment gasket (35), conduit gasket (36) and switching bend pipe (37) composition, the gas circuit pipe
Pneumatic system (3) and melt cavity (8) are realized air circuit connection by road (5), and silencer (4) is connected to pneumatically in the form of pipe screw thread
On the gas outlet of system (3), during air pressure squeezes out, pneumatic system (3) obtains master controller (2) pressure control signal,
Gas pressurized processing is carried out to melt cavity (8) by gas path pipe (5), passes through melt chamber sealing cover (6) and chamber lid gasket
The sealing that (21) realize melt cavity (8) is enclosed, the axle portion of stirring motor (7) realizes sealing by motor axle sealing ring (17)；
The adjustment gasket (31) is located between melt cavity (8) and switching bend pipe (37), cone mouth guide sleeve (32) and switching bend pipe (37)
It is connected through a screw thread, elastic packing cushion block (33) is located between cone mouth guide sleeve (32) and switching bend pipe (37), the wire vent conduit
(28) on clamp nut (34), clamp nut (34) and switching bend pipe (37) are threadedly coupled, and adjust gasket (35) and conduit
Gasket (36) is installed between clamp nut (34) and switching bend pipe (37).
What 4. chopped carbon fiber according to claim 1 and thermoplastic composite mixed aligns processing equipment,
Be characterized in that, the asymmetric uniform stirrer be by stirring motor (7), motor fastening bolt and gasket (16),
Motor axle sealing ring (17), motor shaft and the holding screw of shaft coupling junction (18), shaft coupling (19), shaft coupling and stirring
Positioning pin (20), agitating shaft (22), split pin (23), asymmetric agitating plate (24) and the asymmetric dusting cover orifice plate of shaft connection place
(25) it forms；The stirring motor (7) is mounted on melt chamber sealing cover (6) by bolt at motor fastening and gasket (16)
On, motor axle sealing ring (17) is mounted in the shaft of stirring motor (7) and is located at melt chamber sealing cover (6) seal groove
In, the shaft and shaft coupling (19) of stirring motor (7) are connected by holding screw (18), and shaft coupling (19) and agitating shaft (22) are logical
It crosses positioning pin (20) to be attached, asymmetric agitating plate (24) and asymmetric dusting cover orifice plate (25) pass through split pin (23) and stir
Mix axis (22) connection.
What 5. chopped carbon fiber according to claim 1 and thermoplastic composite mixed aligns processing equipment,
Be characterized in that, the automatic wire coiling device be by parcel motor (9), reel axle sleeve (26), reel (10), squeeze out silk material (27),
Parcel device pedestal (11), axial shifting block (12), cylinder (13), pneumatic system (3), the first cylinder pipeline (14) and the second gas
Earthen pipe road (15) composition；The parcel motor (9) and reel axle sleeve (26) interference fit, reel axle sleeve (26) and reel (10) are adopted
It is attached with transition fit, squeezes out silk material (27) and be wrapped on reel (10), parcel motor (9) is mounted on parcel device pedestal
(11) on, parcel device pedestal (11) is mounted on workbench (1), axial shifting block (12) be mounted on the shaft end of cylinder (13) and
The shift fork of axial shifting block (12) is stuck on reel (10), and cylinder (13) is mounted on workbench (1), the first cylinder pipeline (14) with
And second cylinder pipeline (15) be installed on the air distribution hole of pneumatic system (3) and cylinder (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106058.8A CN106891518B (en) | 2017-02-27 | 2017-02-27 | A kind of chopped carbon fiber and thermoplastic composite mixing align processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110667114B (en) * | 2019-10-17 | 2022-01-28 | 吉林大学 | Integrated printing device and printing method for continuous fiber embedded material |
| CN111923404A (en) * | 2020-03-12 | 2020-11-13 | 西安理工大学 | Plastic powder 3D printing interface enhancing method |
| CN112619807B (en) * | 2020-11-30 | 2022-06-03 | 湖南东映碳材料科技有限公司 | Carbon fiber crushing apparatus |
| CN113018514B (en) * | 2021-04-29 | 2023-09-22 | 承德石油高等专科学校 | Heterogeneous bone tissue engineering scaffold, extrusion assembly and preparation method thereof |
| CN114083734B (en) * | 2021-11-17 | 2022-07-26 | 中国地质大学（北京） | Preparation device and preparation method of oriented conductive composite material |
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| WO2001012700A8 (en) * | 1999-08-16 | 2001-10-25 | Univ Oklahoma | Method for forming a fibers/composite material having an anisotropic structure |
| WO2004099477A3 (en) * | 2003-05-09 | 2005-01-27 | Showa Denko Kk | Fine carbon fiber with linearity and resin composite material using the same |
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| CN103132194A (en) * | 2011-11-30 | 2013-06-05 | 杨恩龙 | Orientation electro-spinning nanometer fiber spinning method and device thereof |
| CN204470010U (en) * | 2015-01-30 | 2015-07-15 | 广州圣夫瑞实业有限公司 | A kind of novel reaction type PUR is for gluing equipment |
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| WO2001012700A8 (en) * | 1999-08-16 | 2001-10-25 | Univ Oklahoma | Method for forming a fibers/composite material having an anisotropic structure |
| WO2004099477A3 (en) * | 2003-05-09 | 2005-01-27 | Showa Denko Kk | Fine carbon fiber with linearity and resin composite material using the same |
| CN1600526A (en) * | 2003-09-25 | 2005-03-30 | 绵阳市仁智奇微新材料有限公司 | Method for manufacturing chopped fiber enhanced winded thermoplastic pipe extruded |
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