CN113733399A - Production line for preparing continuous long carbon fiber composite material for 3D printing - Google Patents
Production line for preparing continuous long carbon fiber composite material for 3D printing Download PDFInfo
- Publication number
- CN113733399A CN113733399A CN202110981323.3A CN202110981323A CN113733399A CN 113733399 A CN113733399 A CN 113733399A CN 202110981323 A CN202110981323 A CN 202110981323A CN 113733399 A CN113733399 A CN 113733399A
- Authority
- CN
- China
- Prior art keywords
- assembly
- wire
- carbon fiber
- block
- infiltration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
-
- 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
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
- B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
-
- 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
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
-
- 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
- B33Y40/10—Pre-treatment
Abstract
The invention provides a production line for preparing a continuous long carbon fiber composite material for 3D printing, which comprises the following steps: the device comprises a protofilament assembly, wherein the protofilament assembly comprises a driving end and a discharging end; the primary infiltration device comprises a wire separating component, an infiltration component, a drying component and a wire drawing component; the secondary infiltration device comprises a hot melting assembly, a water cooling assembly, a wire drawing assembly and at least one matrix wire feeding assembly; the wire winding assembly comprises a driving end and a receiving end. The production line provided by the invention adopts a dry-wet combination, secondary infiltration and secondary molding mode to prepare the carbon fiber composite wire, so that the prepared wire has higher specific strength and specific modulus, and the FDM 3D printing part can be used in a complex load-bearing and pressure-bearing environment.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a production line for preparing a continuous long carbon fiber composite material for 3D printing.
Background
The FDM 3D printing process is the most commonly applied 3D printing technology, and any desired part structure can be formed without a mold in the forming process, so the FDM 3D printing process is widely used, compared with other 3D printing modes, the FDM 3D printing process has relatively high printing precision and can print various materials, but the defect is that the current FDM 3D printing materials mostly use plastics as raw materials, including ABS, PP, ABS and the like, and the materials have strong secondary molding capability, but due to the limitation of the mechanical strength, toughness and the like of the materials, the current 3D printing piece cannot be applied to various force-bearing environments, and the development of the FDM 3D printing technology is severely restricted.
For example, patent CN109703121B provides a new carbon fiber composite material and a method for processing and molding the product thereof, which provides a method for preparing the composite material by a melting method.
However, in the current mode of separately adopting a melting method, the problem that dry fiber filaments and high-viscosity resin solution are difficult to fuse is difficult to avoid, so that a resin matrix is difficult to completely immerse into fiber bundles in the preparation process of the filament, pores are generated in the formed composite filament, and the quality of the formed filament is influenced.
Disclosure of Invention
In view of this, a production line for preparing a continuous long carbon fiber composite material for 3D printing is needed to solve the technical problems in the prior art that a matrix material is difficult to infiltrate into the carbon fiber tows and pores are easily generated inside a composite wire when a fusion method is used for preparing the composite material.
In order to achieve the above technical object, a technical solution of the present invention provides a production line for preparing a continuous long carbon fiber composite material for 3D printing, including:
the carbon fiber precursor is wound on the discharge end so that the discharge end can be driven by the driving end to feed to the next station;
the primary infiltration device comprises a wire dividing assembly, an infiltration assembly, a drying assembly and a first wire drawing assembly, wherein the wire dividing assembly, the infiltration assembly, the drying assembly and the first wire drawing assembly are sequentially arranged, and carbon fiber precursor fed from the discharge end sequentially passes through the wire dividing assembly, the infiltration assembly, the drying assembly and the first wire drawing assembly to be used for carrying out melting infiltration and secondary shaping on the carbon fiber precursor;
the secondary infiltration device comprises a hot melting assembly, a water cooling assembly, a wire drawing assembly and at least one matrix wire feeding assembly, wherein the hot melting assembly, the water cooling assembly and the wire drawing assembly are sequentially arranged, the matrix wire feeding assembly is arranged on the side wall of the hot melting assembly, and the carbon fiber precursor subjected to primary shaping sequentially passes through the hot melting assembly, the water cooling assembly and the wire drawing assembly so as to be used for carrying out secondary shaping on the carbon fiber precursor;
the wire winding assembly comprises a driving piece and a material receiving end, and the material receiving end is connected to the driving end so that the driving end drives the material receiving end to complete material receiving.
Further, the precursor subassembly still includes support frame and pivot, the discharge end is the cylinder, the drive end is for supplying the silk motor, the pivot rotate connect in the support frame, the cylinder cover is located the pivot, supply the silk motor set up in the lateral wall of support frame and its output shaft connect in the pivot, in order to order about the pivot drives the cylinder rotates.
Furthermore, divide the silk subassembly including dividing the silk board, divide the silk board relative the cylinder sets up and has seted up a plurality of branch silk holes to wear to establish respectively after supplying carbon fiber precursor evenly to cut apart into the multibeam respectively a plurality of divide the silk hole.
Further, the infiltration component comprises an infiltration box, an impregnation roller and a first molding nozzle, the infiltration box is opposite to the filament distribution plate and is provided with a hollow top opening, the impregnation roller is multiple in number and arranged in the infiltration box at intervals, the impregnation box is internally provided with resin solution and is immersed in the impregnation roller, one side of the infiltration box close to the filament distribution plate is provided with multiple opposite feeding holes for the filament distribution hole, the first molding nozzle is arranged on the other side of the infiltration box, and multiple carbon fiber precursors enter the infiltration box through the feeding holes and then bypass the impregnation roller and form a wedge-shaped space for the multiple carbon fiber precursors to finish the first infiltration of the resin solution.
Furthermore, the drying component comprises a fixing frame and a copper pipe, the fixing frame is arranged on the other side of the infiltration box, and the copper pipe is connected to the fixing frame and is opposite to the first shaping nozzle.
Furthermore, the first drawing component comprises a supporting block, a first rubber roller, a second rubber roller, a roller fixing frame and a drawing motor, the supporting block is arranged relative to the copper pipe, the first rubber roller is rotatably connected to the supporting block, one end of the roller fixing frame is hinged to the supporting block, the second rubber roller is rotatably connected to the other end of the roller fixing frame, the roller supporting frame is rotated to drive the first rubber roller and the second rubber roller to be tightly connected and form a channel for carbon fiber precursors to pass through, and the drawing motor is arranged on one side of the supporting block and is connected with the first rubber roller through an output shaft of the drawing motor.
Furthermore, the hot melting assembly comprises a hot melting block, a wire inlet copper pipe, a second shaping nozzle, a throat pipe and a radiator, wherein a hot melting cavity is formed inside the hot melting block, at least one matrix wire feeding flow channel is formed in the side wall of the hot melting block and communicated with the hot melting cavity, the wire inlet copper pipe and the second shaping nozzle are respectively arranged at two ends of the hot melting block and communicated with the hot melting cavity, the wire inlet copper pipe is arranged opposite to the supporting block, the throat pipe is arranged on the side wall of the hot melting block, one end of the throat pipe is connected to the matrix wire feeding flow channel, and the radiator is arranged on the outer wall of the throat pipe.
Further, water-cooling subassembly includes water-cooling tank, storage water tank and water pump, the water-cooling tank is relative moulding nozzle two sets up and inside cavity open-top, the bottom of water-cooling tank has still been seted up apopore and its lateral wall and has been offered the fluting that is used for carbon fiber precursor to pass, the storage water tank set up in the bottom of water-cooling tank, place in the water pump storage water tank and its output set up in the water-cooling tank.
Further, the number of the matrix wire feeding assemblies is two, the matrix wire feeding assemblies are respectively arranged on two sides of the hot melt block, matrix wire feeding flow channels are formed in the side walls of two ends of the hot melt block and are connected with the matrix wire feeding assemblies, each matrix wire feeding assembly comprises a Teflon tube fixing block, a Teflon tube, a precursor feeding block, a feeding sheave and a feeding motor, the Teflon tube fixing block is arranged on the side wall of the hot melt block, the Teflon tube fixing block is concave and is provided with feeding holes in the side walls of two ends of the Teflon tube fixing block, one end of the Teflon tube is connected to one side close to the hot melt block and is communicated with the feeding holes, the other end of the Teflon tube is connected to the other end of the throat tube, the precursor feeding block and the feeding sheave are arranged at the groove parts of the concave Teflon tube fixing block and are abutted against each other, the feeding motor is arranged at the bottom of the Teflon tube fixing block, and an output shaft of the feeding motor is connected with the precursor feeding block, to drive the matrix wire to be transported to the hot melt chamber via the teflon tube.
Further, it still includes guide rail, slider, wire drawing motor and supporting shoe to roll up the silk subassembly, the receipts material end is the reel, the driving piece is for rolling up the silk motor, the guide rail is relative the water-cooling tank sets up, slider sliding connection in the guide rail, the wire drawing motor set up in guide rail lateral wall and its output are connected to the slider, the supporting shoe is fixed in the slider, the reel rotate connect in the supporting shoe just is on a parallel with the guide rail sets up, roll up the silk motor set up in lateral wall and its output shaft of supporting shoe in the reel.
Compared with the prior art, the invention has the beneficial effects that: the method comprises the steps that one tow is uniformly dispersed and then enters a primary solvent soaking assembly, a plurality of tows are simultaneously soaked in a soaking box, the tows are completely soaked in a low-viscosity resin solution (the single tows in the tows are mainly soaked), the first solvent (wet method) soaking of the tows is completed, the fiber raw tows can be fully contacted with the low-viscosity resin solution through the primary solution soaking, a low-viscosity resin matrix can be effectively soaked in the fiber bundles, and the full soaking effect is achieved; the design of the second melting infiltration assembly is equivalent to the post-treatment process of the first solvent impregnation forming wire, and the significance is that the post-treatment process of the first solvent impregnation forming wire is that the carbon fiber composite wire containing a large number of air holes after the first impregnation is subjected to secondary melting, impregnation, cladding and other treatment, firstly, the matrix material on the composite wire is melted in a high-temperature mode, so that air bubbles in the wire bundle are removed, then secondary melting impregnation cladding forming is carried out, the wire is mainly penetrated into the melting assembly to complete the secondary infiltration of the wire, and the wire passing through the melting assembly is subjected to water bath cooling by arranging a water bath cooling system, so that the problem that crystalline resin becomes brittle in the cooling crystallization process can be solved.
Drawings
FIG. 1 is a schematic diagram of the structure of a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly of a primary infiltration apparatus in a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a primary infiltration apparatus in a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention;
FIG. 4 is a schematic view of a wedge-shaped space formed by an impregnation roller and a precursor in a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention;
FIG. 5 is a schematic view of the assembly of a secondary infiltration apparatus in a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a secondary infiltration device in a production line for preparing a continuous long carbon fiber composite material for 3D printing according to an embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the invention provides a production line for preparing a continuous long carbon fiber composite material for 3D printing, which comprises a base plate 1, a precursor assembly 2, a primary infiltration device 3, a secondary infiltration device 4 and a filament winding assembly 5, wherein the precursor assembly 2, the primary infiltration device 3, the secondary infiltration device 4 and the filament winding assembly 5 are sequentially mounted on the base plate 1, the base plate 1 is composed of a plurality of plates, and a section bar 11 for fixing the production line is further arranged at the bottom of the base plate 1.
Referring to fig. 3, protofilament subassembly 21 includes support frame 21, pivot 22, cylinder 23 and supplies a motor 24, pivot 22 rotate connect in support frame 21, the cylinder 23 cover is located pivot 22, continuous long carbon fiber tow (1000 single fiber constitutions) are convoluteed on this cylinder 23, supply a motor 24 set up in support frame 21's lateral wall and its output shaft in pivot 22, it can drive to supply a motor to rotate the pivot 22 drives, thereby drives cylinder 23 rotates for protofilament on the cylinder can get into next station.
Referring to fig. 2, the primary infiltration device 3 includes a wire dividing assembly 31, an infiltration assembly 32, a drying assembly 33, and a first drawing assembly 34, the wire dividing assembly 31, the infiltration assembly 32, the drying assembly 33, and the first drawing assembly 34 are sequentially disposed on the bottom plate 1, and the carbon fiber precursor supplied by the drum 23 sequentially passes through the wire dividing assembly 31, the infiltration assembly 32, the drying assembly 33, and the first drawing assembly 34, so as to complete primary shaping of the carbon fiber precursor.
Referring to fig. 3, the filament dividing assembly 31 includes a filament dividing plate 311, the filament dividing plate 311 is disposed opposite to the drum 23 and is provided with 3 filament dividing holes 312, a carbon fiber precursor (1000 fibers) is manually and uniformly divided into 3 filaments, and then the 3 filament dividing holes 312 are respectively penetrated through, each filament dividing hole 312 penetrates through a bundle of carbon fiber precursors, and then the carbon fiber precursors enter the next station; wherein, the number of the filament dividing holes can be increased or decreased according to the requirement so as to adapt to different materials.
The infiltration component 32 comprises an infiltration box 321, a plurality of impregnation rollers 322 and a first shaping nozzle 323, the infiltration box 321 is arranged opposite to the filament dividing plate 311, the hollow top of the infiltration box 321 is open, the impregnation rollers 322 are arranged at intervals and are arranged in the infiltration box 321, a resin solution is arranged in the infiltration box 321 and immerses the impregnation rollers 322, one side of the infiltration box 321, which is close to the filament dividing plate 311, is provided with 3 feed holes 3211 opposite to the filament dividing holes 312, the first shaping nozzle 323 is arranged at the other side of the infiltration box 321, 3 carbon fiber precursors enter the infiltration box 321 through the feed holes 3211 and then bypass the impregnation rollers 322 to form a wedge-shaped space, so that the 3 carbon fiber precursors complete the first infiltration of the resin solution; in the primary infiltration box, 3 precursor yarns respectively bypass different impregnation rollers 322, one precursor yarn comprises a plurality of carbon fiber yarns and can form a wedge-shaped space by contacting with the impregnation rollers 322, referring to fig. 4, a single carbon fiber yarn can be fully infiltrated at the impregnation roller 322, the plurality of impregnation rollers 322 are arranged, the impregnation time is prolonged, the evenly distributed precursor yarns are gathered in a first molding nozzle 323 after being infiltrated in the infiltration box 321 for one time, the plurality of carbon fiber yarns at the first molding nozzle 323 are combined into a single yarn bundle, then the single yarn bundle enters the next station after being molded by the first molding nozzle 323, and the first complete infiltration and molding of the carbon fiber yarns are completed in the infiltration box 321, and the continuous long carbon fiber composite yarns prepared by a solvent method can be obtained at the position.
The drying component 33 comprises a fixing frame 331 and a copper pipe 332, the fixing frame 331 is arranged on the other side of the infiltration tank 321, the copper pipe 332 is connected to the fixing frame 331 and arranged opposite to the first shaping nozzle 323, the carbon fiber precursors molded by the first shaping nozzle 323 enter the copper pipe 332, a certain temperature can be kept in the copper pipe 332 through heating equipment, dichloromethane in the composite filament can be removed in the copper pipe, but at the moment, due to volatilization of the dichloromethane, a large number of air holes can be formed in the filament, and therefore after the filament prepared by a solvent method is dried through the copper pipe 332, the existing air holes also need to be processed. Wherein, can arrange the spiral heating tape of twist type on the copper pipe 332, twine spiral heating tape of twist type on copper pipe 332, and hug closely temperature sensor and place the copper pipe outer wall, then wrap up the one deck heat preservation cotton again outside the copper pipe of winding the heating tape, in the course of the work, outside temperature controller heats the heating tape and then reaches the purpose that control copper pipe temperature risees, temperature sensor hugs closely the purpose of copper pipe and is control copper pipe temperature and keep outside temperature controller setting value scope, thereby when making the silk material after once soaking through dry copper pipe, can dry in the setting temperature scope.
The first drawing assembly 34 comprises a supporting block 341, a first rubber roller 342, a second rubber roller 343, a roller holder 344 and a drawing motor 345, wherein the supporting block 341 is arranged opposite to the copper pipe 332, the first rubber roller 342 is rotatably connected to the supporting block 341, one end of the roller holder 344 is hinged to the supporting block 341, the second rubber roller 343 is rotatably connected to the other end of the roller holder 344, the roller holder 344 is rotated to drive the first rubber roller 342 and the second rubber roller 343 to be tightly connected and form a channel for carbon fiber precursor to pass through, and the drawing motor 345 is arranged at one side of the supporting block 341 and has an output shaft connected to the first rubber roller 342; wherein the wire drawing motor 345 is connected with the first rubber roller 342 through a coupler, the roller fixing frame 344 is arranged above the first rubber roller 342, one end of the roller fixing frame is hinged on the supporting block 341, the other end of the roller fixing frame is provided with the second rubber roller 343, the second rubber roller 343 can be tightly connected with the first rubber roller 342 through a spring (not shown in the figure), and a channel for carbon fiber tows to pass through is formed, after the composite wire subjected to primary infiltration is dried through the drying copper pipe 332, the composite wire enters between the second rubber roller 343 and the first rubber roller 342 from one side of the supporting block 341, the wire drawing motor 345 rotates to drive the first rubber roller 342 to rotate, meanwhile, as the second rubber roller 343 is tightly attached to the first rubber roller 342, the second rubber roller 343 is driven to rotate together when the first rubber roller 342 rotates, so that the wire formed by a solvent method passes through the space between the first rubber roller 342 and the second rubber roller 343, driven by the friction force, the thread can penetrate out from the other side of the supporting block 341, and through holes (not shown in the figure) for the thread to penetrate through are formed in the two sides of the supporting block. Therefore, the first wire drawing assembly 34 can drive the carbon fiber tows to sequentially pass through the roller, the wire separating plate, the infiltration box, the copper pipe and the supporting block to complete first infiltration, namely wet infiltration.
As a preferred embodiment, the wire supply motor 214 and the wire drawing motor 345 keep a certain speed difference, and the wire drawing motor 345 is used for dragging the wire supply motor 214 to move, so that the wire pre-tightening effect is realized before the wire enters the primary soaking box 321, and a better wedge-shaped space is formed after the wire enters the soaking box 321.
Referring to fig. 1, secondary infiltration device 4 includes hot melt subassembly 41, water cooling subassembly 42 and two 43 and two base silk material feeding component 44 of wire drawing subassembly, hot melt subassembly 41 water cooling subassembly 42 with two 43 of wire drawing subassembly set gradually in on the bottom plate 1, base silk material feeding component 44 set up in hot melt subassembly 41's lateral wall for provide base silk material in the hot melt subassembly, the carbon fiber precursor after once moulding passes through in proper order hot melt subassembly 41 water cooling subassembly 42 with two 43 of wire drawing subassembly to this secondary moulding of accomplishing carbon fiber precursor.
Referring to fig. 5 and 6, the hot melt assembly 41 includes a hot melt block 411, a filament feeding copper tube 412, a second shaping nozzle 413, a throat 414 and a heat sink 415, wherein a hot melt cavity 4111 is formed inside the hot melt block 411, sidewalls of both ends of the hot melt block 411 are provided with a matrix filament feeding flow channel 4112 and are communicated with the hot melt cavity 4111, the filament feeding copper tube 412 and the second shaping nozzle 413 are respectively disposed at both ends of the hot melt block 411 and are communicated with the hot melt cavity 4111, wherein the filament feeding copper tube 412 is disposed opposite to the supporting block 341 for allowing primarily infiltrated filaments to enter the hot melt cavity 4111, the throat 414 is disposed on a sidewall of the hot melt block 411 and has one end connected to the matrix filament feeding flow channel 4114, the heat sink 415 is disposed on an outer wall of the throat 414, and matrix filaments enter the hot melt cavity 4111 from the matrix filament feeding flow channel 4112 and react with the primarily infiltrated filaments inside the hot melt cavity, finishing the secondary infiltration of the wire, and finishing the secondary molding and coating of the carbon fiber composite wire in the second molding nozzle 413, namely dry infiltration. The wire inlet copper pipe 412 can play a certain guiding role when the primary composite wire enters the melting cavity, and can prevent the leakage of the molten matrix material in the melting cavity. Preferably, the second molding nozzle 413 can be provided with nozzles with different diameters according to requirements, so that the preparation of wires with different diameters can be realized.
The water cooling assembly 42 comprises a water cooling tank 421, a water storage tank 422 and a water pump (not shown in the figure), the water cooling tank 421 is arranged opposite to the second shaping nozzle 413 and is internally hollow, the top of the water cooling tank is opened, the bottom of the water cooling tank 421 is further provided with a water outlet 4211, the side wall of the water cooling tank is provided with a slot 4212 for carbon fiber precursor to pass through, the water storage tank 422 is arranged at the bottom of the water cooling tank 421, the water pump is arranged in the water storage tank 422, and the output end of the water pump is arranged in the water cooling tank 421; the matrix material on the surface of the wire subjected to secondary infiltration and molding of the composite wire is not solidified and needs to be cooled and molded, therefore, a water cooling box 421 is arranged behind the hot melting block 411, water in a water storage tank 422 is pumped into the water cooling box 421 through a water pump, four water outlet holes 4211 are formed in the bottom of the water cooling box 421, slots 4212 are formed in the left side and the right side of the water cooling box 421, water pumped into the water cooling box 421 flows out of the water cooling box 421 through the four small holes formed in the bottom and the slots on the two sides and finally flows back into the water storage tank 422, water circulation in a water cooling system is realized, the wire subjected to secondary melting and molding enters the water cooling box 421 through the slot side, water bath cooling is carried out on the wire in the water cooling box 421, and the wire penetrates out from the other side of the water cooling box 421 after cooling is finished, and the purpose of water cooling is realized. Preferably, the device adopts a warm water bath cooling mode, and aims to overcome the problem that the crystalline resin becomes brittle in the cooling and crystallizing process, a heating rod and a sensor (not shown in the figure) are placed in the water storage tank 422, the heating rod and the sensor are connected with an external temperature controller, the external temperature controller sets a corresponding temperature value, then the water in the water storage tank 422 is heated by the heating rod, the external temperature controller controls the on-off time of the heating rod through the temperature sensor arranged in the water storage tank 422, further, the water temperature in the water storage tank 42 is controlled to be maintained within a set value range, and when the water temperature in the water storage tank reaches a set value, the warm water is pumped into the water cooling tank 421 by a water pump placed in the water storage tank, when the incompletely cooled wire passes through the water cooling tank 421, as the water cooling tank is provided with enough warm water, the wire can be cooled in a warm water bath.
The structure of the second drawing assembly 43 is the same as that of the first drawing assembly 34, and the purpose of the second drawing assembly is the same as that of the first drawing assembly 34, and the second drawing assembly is mainly used for drawing the precursor to move, so that the precursor can sequentially pass through the hot melt block 411 and the water cooling tank 421 to complete secondary infiltration, and the specific structure of the second drawing assembly is not described again here.
The number of the matrix filament feeding assemblies 44 is two, the two matrix filament feeding assemblies 44 are respectively arranged at two sides of the hot frit 411 and are communicated with the matrix filament feeding flow channel 4112, each matrix filament feeding assembly 44 comprises a teflon tube fixing block 441, a teflon tube 442, a filament feeding block 443, a feeding sheave 444 and a feeding motor 445, the teflon tube fixing block 441 is arranged at the side wall of the hot frit 411, the teflon tube fixing block 441 is concave-shaped and is provided with feeding holes at the side wall of two ends thereof, one end of the teflon tube 442 is connected to one side close to the hot frit 411 and is communicated with the feeding holes, the other end of the teflon tube 442 is connected to the other end of the throat 415, the filament feeding block 443 and the feeding sheave 444 are both arranged at the concave-shaped groove part of the teflon tube fixing block 441 and are abutted against each other, the feeding motor 445 is arranged at the bottom of the teflon tube fixing block 441 and is connected with the filament feeding block 443 by an output shaft thereof, to drive the substrate wire to be transported to the hot melt cavity 4111 via the Teflon tube 442; the matrix filament passes through a feeding hole on one side of the Teflon tube fixing block 441, then passes through the middle of the precursor feeding block 443 and the feeding grooved pulley 444 to enter a feeding hole on the other side, the feeding motor 445 is fixed at the bottom of the Teflon tube fixing block 441 to provide driving force for the matrix filament, the precursor feeding block 443 is driven to rotate by the rotation of the feeding motor, so that the feeding grooved pulley 444 is driven to rotate along with the precursor feeding block 443, under the combined action of the feeding grooved pulley 444 and the precursor feeding block 443, the matrix filament is driven to enter the interior of the Teflon tube 442 through the feeding hole on the Teflon tube fixing block, then enters the throat tube 414 from the interior of the Teflon tube 442, and finally enters the hot melting cavity 4111. The number of the matrix wire feeding assemblies 44 can be increased or decreased as required, and the corresponding hot melting blocks can also be added with a plurality of flow channels to realize secondary melting, dipping and coating of different matrix materials.
As a preferred embodiment, a heating rod and a temperature sensor are arranged on the hot melt block 411, an external temperature controller controls the heating rod to keep the hot melt block 411 within a set temperature range, specifically, two heating rods with the same power and one temperature sensor are arranged on the top of the hot melt block, the heating rod heats the hot melt block 411 to raise the temperature, and the external temperature controller controls the on-off of the heating rod through the temperature sensor fixed on the hot melt block 411 to further control the temperature of the hot melt block 411 to be maintained within the set temperature range, so as to melt the matrix wires entering the hot melt chamber 4111; the matrix wires enter a throat 414 of a hot melting assembly from a Teflon tube 442 in the matrix wire feeding assembly in a continuous cylindrical mode, then enter the hot melting cavity 4111 of a hot melting block 411 from the throat 414 (the throat is a hollow tube with external threads) to be melted, one end of the throat 414 is connected with the hot melting block 411, when the hot melting block 411 is heated up, the throat 414 is also heated up, therefore, a radiator 415 is arranged on the throat 414, in the working process of the hot melting device, the throat 414 is cooled down by the fan 415, so that the throat 414 is not heated up to transmit high temperature to the Teflon tube 422, when the continuous cylindrical matrix wires are pushed to the position by the Teflon tube 422, the matrix materials are still not melted, but when the matrix wires continuously enter the hot melting cavity 4111 along a matrix wire feeding flow passage 4112, the matrix materials are melted, and then the matrix wires are ensured to start to be melted after entering the matrix wire feeding flow passage 4112, further melted sufficiently after entering the hot melt chamber 4111.
The wire winding assembly 5 comprises a guide rail 51, a slider 52, a wire drawing motor 53, a support block 54, a winding drum 55 and a wire winding motor 56, wherein the guide rail 51 is arranged relative to the water cooling tank 421, the slider 52 is slidably connected to the guide rail 51, the wire drawing motor 53 is arranged on the side wall of the guide rail 51, the output end of the wire drawing motor is connected to the slider 52, the slider 52 is driven to move along the slide rail 51, the support block 54 is fixed to the slider 52, the winding drum 55 is rotatably connected to the support block 54 and arranged parallel to the guide rail 51, and the wire winding motor 56 is arranged on the side wall of the support block 54, the output shaft of the winding drum 56 is connected to the winding drum 55, and the winding drum 55 is driven to rotate; the winding motor 56 rotates to drive the winding drum 55 to rotate, so that the wires after secondary infiltration are wound on the winding drum 55, the winding motor 56 and the winding drum 55 are integrally installed on the sliding block 52 of the linear guide rail 51, the wire drawing motor 53 periodically rotates forwards and backwards, the sliding block 52 is driven to reciprocate along the guide rail 51, the winding drum 55 is driven to move together, reciprocating linear motion of the winding drum 55 under the rotating condition can be realized, the composite wires are uniformly wound on the winding drum 55, and the final material receiving work of the carbon fiber composite wires after dry and wet combination preparation is completed.
As a preferred embodiment, the production line further comprises a wire guiding assembly 6, wherein the wire guiding assembly 6 comprises a fixed bracket 61, a plurality of guide groove wheel shafts 62 and guide grooved wheels 63 thereof, the plurality of guide groove wheel shafts 62 are connected to the fixed bracket 61, and the guide grooved wheels 63 are sleeved on the guide groove wheel shafts 62. The once-formed composite wire is drawn by the once-drawing device 107 and enters the guide device 108 first. Wire guiding assemblies 6 are arranged at the first wire drawing assembly 34 and the second wire drawing assembly 43, the wire guiding assemblies 6 are mainly used for limiting wires, a plurality of guide grooved wheels are fixed on different guide grooved wheel shafts respectively, the guide grooved wheel shafts 62 are installed at different positions of the fixing support 61, the wires after wire drawing are wound around the guide grooved wheels alternately, the guide grooved wheels 63 are used for limiting the wires when the wires are in a tensioning state, and the wires are prevented from swinging in the wire drawing process. In the secondary infiltration device 4, a water storage tank 422 is arranged at the bottom of the water cooling tank 421, and the water cooling tank 421 and the hot melt block 411 thereof have a height difference with the first drawing device 34, so that two wire guiding devices 6 are arranged between the hot melt block 411 and the first drawing device 34 and are used for balancing the height difference between the primary infiltration device and the secondary infiltration device.
The production line combines a melting method and a solvent method to realize the preparation of the carbon fiber composite wire, firstly, the low-viscosity resin solution in the solvent method is used for completely infiltrating and molding the carbon fiber tows, and then the melting method is used for carrying out secondary infiltration, molding and coating on the composite wire; the primary solvent impregnation box body is mainly used for completing the impregnation of monofilaments in the fiber tows, and the low-viscosity resin solution is impregnated into the fiber tows by utilizing the relative pressure generated by a wedge-shaped space formed by an impregnation roller and the fiber tows, so that the primary complete impregnation effect of the fiber protofilaments is realized; the secondary infiltration device is mainly used for removing air bubbles in the wires prepared by a primary solvent method, realizing secondary infiltration of monofilaments in a fiber tow, controlling the content of a matrix material in a formed wire, coating the surface of the fiber tow with the matrix material, and performing secondary molding on the composite wires, firstly melting the matrix material on the composite wires in a high-temperature mode to remove the air bubbles in the tows, secondly pushing the molten matrix material into the fiber tow by using the driving force provided by a feeding motor of the matrix material to realize secondary full infiltration of the composite wires, and simultaneously controlling the rotating speed of the feeding motor to realize the control of the content of the matrix material in the formed fiber composite wires, and finally realizing the coating of the composite wires by matching with molding nozzles with different sizes through redundant matrix resin materials in a hot melting cavity, and control of the diameter of the formed wire.
According to the invention, the aperture of the first molding nozzle is smaller than that of the second molding nozzle, the first molding nozzle mainly performs molding, so that originally flat and flat precursor filaments are changed into a cylinder after first molding, the filaments in the filament bundles are tightly attached to each other through first infiltration, and the second molding nozzle mainly performs cladding, so that redundant molten resin material is clad outside the fiber filament bundles at the nozzle opening, and thus, the inside and the outside of the fiber bundles are ensured to contain sufficient resin matrix material.
The working principle of the embodiment provided by the invention is as follows: the invention uniformly disperses a tow and then enters a primary infiltration device, a plurality of tows are simultaneously impregnated in an infiltration box, the tows are completely impregnated in a low-viscosity resin solution (mainly realizing the single filament infiltration of the tows), and then the tows penetrate out of the infiltration box through a molding nozzle to finish the primary solvent (wet process) impregnation of the tow, the primary solution impregnation can ensure that the fiber tow is fully contacted with the low-viscosity resin solution, the low-viscosity resin matrix can be effectively immersed in the carbon fiber tows to achieve the full impregnation effect, the carbon fiber tows after primary impregnation enter a drying copper pipe, the dichloromethane contained in the tow after primary solution impregnation can be removed, the carbon fiber tows can generate a large amount of air holes after passing through the drying copper pipe to influence the quality of the formed tow, so that the secondary melt infiltration is needed, and is the post-treatment process of the filament formed by primary solvent impregnation, the method is characterized in that the carbon fiber composite wire containing a large number of air holes after primary impregnation is subjected to secondary melting, impregnation, coating and other treatments, the secondary melting, impregnation and coating process mainly comprises the steps of enabling the wire to penetrate into a melting cavity from a wire inlet copper pipe and then penetrate out from a secondary molding nozzle, enabling a feeding motor to penetrate a matrix wire into the melting cavity from a throat pipe at the same time, continuously moving, enabling the feeding motor to extrude the molten matrix material into fiber tows in a main flow channel to finish secondary infiltration of the wire, enabling the matrix material in the melting cavity to move to the second molding nozzle due to the fact that the tows in the melting cavity are pushed by the feeding motor, enabling the wire to finish secondary molding of the wire at the second molding nozzle, enabling the periphery of the tows to be coated with a resin material by controlling the diameter of the molding nozzle, and finally completing carbon fiber composite wire winding under the action of a wire winding motor, thereby completing the preparation of the continuous long carbon fiber composite material.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a preparation 3D prints production line with continuous long carbon fiber composite which characterized in that includes:
the carbon fiber precursor is wound on the discharge end so that the discharge end can be driven by the driving end to feed to the next station;
the primary infiltration device comprises a wire dividing assembly, an infiltration assembly, a drying assembly and a first wire drawing assembly, wherein the wire dividing assembly, the infiltration assembly, the drying assembly and the first wire drawing assembly are sequentially arranged, and carbon fiber precursor fed from the discharge end sequentially passes through the wire dividing assembly, the infiltration assembly, the drying assembly and the first wire drawing assembly so as to be used for primary shaping of the carbon fiber precursor;
the secondary infiltration device comprises a hot melting assembly, a water cooling assembly, a wire drawing assembly and at least one matrix wire feeding assembly, wherein the hot melting assembly, the water cooling assembly and the wire drawing assembly are sequentially arranged, the matrix wire feeding assembly is arranged on the side wall of the hot melting assembly, and the carbon fiber precursor subjected to primary shaping sequentially passes through the hot melting assembly, the water cooling assembly and the wire drawing assembly so as to be used for carrying out melting infiltration and secondary shaping on the carbon fiber precursor;
the wire winding assembly comprises a driving piece and a material receiving end, and the material receiving end is connected to the driving end so that the driving end drives the material receiving end to complete material receiving.
2. The production line of the continuous long carbon fiber composite material for 3D printing according to claim 1, characterized in that: protofilament subassembly still includes support frame and pivot, the discharge end is the cylinder, the drive end is for supplying the silk motor, the pivot rotate connect in the support frame, the cylinder cover is located the pivot, supply the silk motor set up in the lateral wall of support frame and its output shaft connect in the pivot, in order to order about the pivot drives the cylinder rotates.
3. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 2, characterized in that: the filament dividing assembly comprises a filament dividing plate, the filament dividing plate is opposite to the roller and is provided with a plurality of filament dividing holes, and the carbon fiber precursor is uniformly divided into a plurality of bundles and then penetrates through the filament dividing holes respectively.
4. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 3, characterized in that: the infiltration assembly comprises an infiltration box, an impregnation roller and a first molding nozzle, the infiltration box is relative to the filament distribution plate and is provided with a hollow top opening, the impregnation roller is multiple in number and arranged at intervals, the impregnation box is internally provided with resin solution and is immersed in the impregnation roller, the infiltration box is close to one side of the filament distribution plate and is provided with a plurality of relative feed holes for the filament distribution hole, the first molding nozzle is arranged at the other side of the infiltration box, a plurality of carbon fiber precursors pass through the feed holes and enter the infiltration box and then bypass the impregnation roller and form a wedge-shaped space, so that the resin solution is infiltrated for the first time by the plurality of carbon fiber precursors.
5. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 4, characterized in that: the drying component comprises a fixing frame and a copper pipe, the fixing frame is arranged on the other side of the infiltration box, and the copper pipe is connected to the fixing frame and is opposite to the first molding nozzle.
6. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 5, characterized in that: the first wire drawing component comprises a supporting block, a first rubber roller, a second rubber roller, a roller fixing frame and a wire drawing motor, the supporting block is arranged relative to the copper pipe, the first rubber roller is rotatably connected to the supporting block, one end of the roller fixing frame is hinged to the supporting block, the second rubber roller is rotatably connected to the other end of the roller fixing frame, the roller supporting frame is rotated to drive the first rubber roller and the second rubber roller to be tightly connected and form a channel for carbon fiber precursors to pass through, and the wire drawing motor is arranged on one side of the supporting block and is connected with the first rubber roller through an output shaft.
7. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 6, characterized in that: the hot melting assembly comprises a hot melting block, a wire inlet copper pipe, a second shaping nozzle, a throat pipe and a radiator, wherein a hot melting cavity is formed in the hot melting block, at least one matrix wire feeding flow channel is formed in the side wall of the hot melting block and communicated with the hot melting cavity, the wire inlet copper pipe and the second shaping nozzle are respectively arranged at two ends of the hot melting block and communicated with the hot melting cavity, the wire inlet copper pipe is arranged opposite to the supporting block, the throat pipe is arranged on the side wall of the hot melting block, one end of the throat pipe is connected to the matrix wire feeding flow channel, and the radiator is arranged on the outer wall of the throat pipe.
8. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 7, characterized in that: the water-cooling subassembly includes water-cooling tank, storage water tank and water pump, the water-cooling tank is relative moulding two sets up and inside cavity open-top, the bottom of water-cooling tank has still been seted up apopore and its lateral wall and has been offered the fluting that is used for the carbon fiber precursor to pass, the storage water tank set up in the bottom of water-cooling tank, place in the water pump storage water tank and its output set up in the water-cooling tank.
9. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 8, characterized in that: the two substrate wire feeding assemblies are respectively arranged at two sides of the hot melting block, substrate wire feeding flow channels are formed in the side walls of two ends of the hot melting block and are connected with the substrate wire feeding assemblies, each substrate wire feeding assembly comprises a Teflon tube fixing block, a Teflon tube, a precursor feeding block, a feeding sheave and a feeding motor, the Teflon tube fixing block is arranged on the side wall of the hot melting block, the Teflon tube fixing block is concave and is provided with feeding holes in the side walls of two ends, one end of the Teflon tube is connected to one side close to the hot melting block and is communicated with the feeding holes, the other end of the Teflon tube is connected to the other end of the throat, the precursor feeding block and the feeding sheave are arranged in the concave part of the Teflon tube fixing block and are abutted against each other, the feeding motor is arranged at the bottom of the Teflon tube fixing block, and an output shaft of the feeding motor is connected with the precursor feeding block, to drive the matrix wire to be transported to the hot melt chamber via the teflon tube.
10. The production line for producing a continuous long carbon fiber composite material for 3D printing according to claim 9, characterized in that: the wire winding component further comprises a guide rail, a sliding block, a wire drawing motor and a supporting block, the winding end is a winding drum, the driving piece is a wire winding motor, the guide rail is opposite to the water cooling tank, the sliding block is connected to the guide rail in a sliding mode, the wire drawing motor is arranged on the side wall of the guide rail, the output end of the guide rail is connected to the sliding block, the supporting block is fixed to the sliding block, the winding drum is rotatably connected to the supporting block and is parallel to the guide rail, and the wire winding motor is arranged on the side wall of the supporting block and is connected to the winding drum in an output shaft mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981323.3A CN113733399A (en) | 2021-08-25 | 2021-08-25 | Production line for preparing continuous long carbon fiber composite material for 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981323.3A CN113733399A (en) | 2021-08-25 | 2021-08-25 | Production line for preparing continuous long carbon fiber composite material for 3D printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113733399A true CN113733399A (en) | 2021-12-03 |
Family
ID=78732852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110981323.3A Pending CN113733399A (en) | 2021-08-25 | 2021-08-25 | Production line for preparing continuous long carbon fiber composite material for 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113733399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116348275A (en) * | 2022-12-08 | 2023-06-27 | 苏州聚复科技股份有限公司 | Crystallization control device and method for producing 3D printing wire |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130113133A1 (en) * | 2010-04-19 | 2013-05-09 | 3B-Fibreglass Sprl | Impregnation Assembly and Method for Manufacturing a Composite Structure Reinforced with Long Fibers |
| US20180250850A1 (en) * | 2016-06-01 | 2018-09-06 | Apis Cor Engineering, Llc | Composite material for 3d printing produced by pultrusion method |
| CN109080168A (en) * | 2018-09-30 | 2018-12-25 | 浙江大学 | A kind of compound increasing material manufacturing equipment of continuous fiber thermoplastic material configuration part |
| CN111497170A (en) * | 2020-04-03 | 2020-08-07 | 武汉理工大学 | 3D prints preparation facilities with filiform carbon-fibre composite |
| CN212826850U (en) * | 2020-07-08 | 2021-03-30 | 深圳广美雕塑壁画艺术股份有限公司 | 3D sculpture printer structure of continuous fibers reinforcing combined material |
| CN113172853A (en) * | 2021-04-16 | 2021-07-27 | 固纤(苏州)智能科技有限公司 | 3D prints with continuous carbon-fibre composite's dry and wet preparation facilities |
-
2021
- 2021-08-25 CN CN202110981323.3A patent/CN113733399A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130113133A1 (en) * | 2010-04-19 | 2013-05-09 | 3B-Fibreglass Sprl | Impregnation Assembly and Method for Manufacturing a Composite Structure Reinforced with Long Fibers |
| US20180250850A1 (en) * | 2016-06-01 | 2018-09-06 | Apis Cor Engineering, Llc | Composite material for 3d printing produced by pultrusion method |
| CN109080168A (en) * | 2018-09-30 | 2018-12-25 | 浙江大学 | A kind of compound increasing material manufacturing equipment of continuous fiber thermoplastic material configuration part |
| CN111497170A (en) * | 2020-04-03 | 2020-08-07 | 武汉理工大学 | 3D prints preparation facilities with filiform carbon-fibre composite |
| CN212826850U (en) * | 2020-07-08 | 2021-03-30 | 深圳广美雕塑壁画艺术股份有限公司 | 3D sculpture printer structure of continuous fibers reinforcing combined material |
| CN113172853A (en) * | 2021-04-16 | 2021-07-27 | 固纤(苏州)智能科技有限公司 | 3D prints with continuous carbon-fibre composite's dry and wet preparation facilities |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116348275A (en) * | 2022-12-08 | 2023-06-27 | 苏州聚复科技股份有限公司 | Crystallization control device and method for producing 3D printing wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109176962B (en) | Pre-dispersion and surface-treated continuous fiber reinforced thermoplastic resin matrix impregnated strip molding integrated device and molding method thereof | |
| TWI496965B (en) | Method for melt spinning, drawing and winding a multifilament thread to form a fdy-yarns as well as a device for performing the method | |
| KR20130081641A (en) | Impregnation assembly and method for manufacturing a composite structure reinforced with long fibers | |
| CN108724525A (en) | Continuous fiber reinforced thermoplastic composite material unidirectional prepreg tape Preparation equipment and method | |
| JPH0358894B1 (en) | ||
| CN113733399A (en) | Production line for preparing continuous long carbon fiber composite material for 3D printing | |
| CN111716587A (en) | Constant-temperature impregnation device for winding composite material fibers | |
| JP2008290309A (en) | Method for impregnating fiber bundle with resin and apparatus for impregnating fiber bundle with resin | |
| CN216578741U (en) | Dry prepreg production equipment | |
| CN110673281B (en) | Manufacturing device and manufacturing method of flexible optical fiber ribbon | |
| JP3575718B2 (en) | Manufacturing method of tow prepreg | |
| US20220126532A1 (en) | System and method for in-situ impregnation of continuous fiber tows with thermoplastic resin | |
| CN111923447A (en) | Fiber thermosetting resin unidirectional tape pre-dipping machine and production process thereof | |
| CN114131951B (en) | Combined winding forming equipment | |
| CN113334628B (en) | Air-floating type rolling continuous fiber prepreg production device | |
| CN112976611B (en) | Automatic production line of large-width carbon fiber cloth | |
| CN217476644U (en) | Can produce pultrusion section bar device of variable curvature section bar | |
| CN110935591A (en) | Fiber strand yarn batch coating device and coating method thereof | |
| CN112895425B (en) | Eccentric multi-roller dipping composite fiber filament fused deposition extrusion printing spray head device | |
| CN211838778U (en) | Fiber strand yarn batch coating device | |
| US20230294330A1 (en) | A system and method for preparing pre-impregnated continous fiber tapes and filaments | |
| CN113584654B (en) | Acrylic fiber elasticizing automatic control device and elasticizing method | |
| CN213321134U (en) | Fiber thermosetting resin unidirectional tape pre-dipping machine | |
| CN218821311U (en) | Drying equipment | |
| CN217392807U (en) | Pre-impregnated wire heating curing gluing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211203 |
|
| RJ01 | Rejection of invention patent application after publication |