CN111941880A - Continuous fiber reinforced thermoplastic resin matrix composite profile production line - Google Patents
Continuous fiber reinforced thermoplastic resin matrix composite profile production line Download PDFInfo
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- CN111941880A CN111941880A CN202010669380.3A CN202010669380A CN111941880A CN 111941880 A CN111941880 A CN 111941880A CN 202010669380 A CN202010669380 A CN 202010669380A CN 111941880 A CN111941880 A CN 111941880A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/523—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement in the die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
- B29C70/525—Component parts, details or accessories; Auxiliary operations
Abstract
The invention discloses a production line for molding a continuous fiber reinforced thermoplastic resin matrix composite profile in the technical field of thermoplastic composite materials, which mainly comprises the following components: the device comprises a fiber creel, dehumidification equipment, an injection system, an injection box, a forming die, traction equipment, cutting equipment, a storage table and a control system; the method comprises the steps of 1) material preparation, 2) yarn preparation, 3) fiber dehumidification, 4) resin injection, 5) resin polymerization and crystallization and 6) fixed-length cutting and storage, and has the advantages of low energy consumption and reduction of severe production environment of a workshop; the product has good fiber wettability, low porosity and high mechanical property; the manufactured product can be recycled; the mass, automatic and high-beat production can be realized; the module can be designed, and the modification and replacement are convenient.
Description
Technical Field
The invention relates to the technical field of thermoplastic composite materials, in particular to a production line of a continuous fiber reinforced thermoplastic resin matrix composite material section.
Background
Resin-based composite materials can be classified into thermosetting composite materials and thermoplastic composite materials according to the difference of resin matrixes. At present, thermosetting composite materials are mainly used in the market, especially continuous fiber reinforced resin matrix composite materials. However, thermosetting composite materials have inherent disadvantages, such as low fracture toughness, short raw material service life, long molding cycle, and no recyclability. Thermoplastic composites are widely recognized as having great potential for use because of the following advantages over thermoset composites: high toughness, short forming and processing period, connection, metal-like processing characteristics, secondary forming after forming, and the like.
Continuous fiber reinforced composite profiles are typically manufactured using a pultrusion process. The pultrusion process is a production process for continuously producing composite material profiles, which is a production process for forming pultruded products by impregnating fiber roving on a creel with resin, then passing the fiber roving through a forming die which keeps a certain cross section shape, and continuously discharging the fiber roving after curing and forming in the die. Composite profiles are gaining increasing favor due to their excellent weight reduction effect and mechanical properties.
The existing pultrusion process mainly takes thermosetting resin as main material, while the pultrusion occupancy rate of fiber reinforced thermoplastic resin is low, and currently, the resin is mainly melted and impregnated. The melting of the thermoplastic resin requires a higher temperature and the impregnation effect on the large tow fibers is poor, which undoubtedly increases the energy consumption of the equipment and produces product with properties significantly lower than the theoretical values.
Based on the technical scheme, the invention designs a continuous fiber reinforced thermoplastic resin matrix composite profile production line to solve the problems.
Disclosure of Invention
The invention aims to provide a production line of a continuous fiber reinforced thermoplastic resin matrix composite material section bar, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a production line for molding a continuous fiber reinforced thermoplastic resin matrix composite profile mainly comprises the following components: the device comprises a fiber creel, dehumidification equipment, an injection system, an injection box, a forming die, traction equipment, cutting equipment, a storage table and a control system;
the fiber yarn frame is integrally controlled by a control system, real-time tension can be displayed, one side of the fiber yarn frame is provided with a dehumidifying device, fibers are dried by the dehumidifying device, one side of the dehumidifying device is provided with an injection box, the injection box is used for storing glue liquid injected from a mixing head, the fibers are infiltrated by resin through the injection box, the injection box can adjust injection pressure, injection flow and mixing ratio through the injection system, and the injection system comprises a resin material tank unit, a flow metering unit, a circulating unit, the mixing head, a vacuum system, a temperature control system, a pipeline system, a host bracket, a cleaning system, a nitrogen sealing system and an electrical control system;
a glue outlet at the tail part of a mixing head on the injection system is directly connected with an injection port of the injection box, and the mixed glue solution directly enters a mold cavity of the injection box; one side of the injection box is provided with a forming die, the forming die comprises a resin polymerization section and a resin crystallization section and is used for carrying out thermal forming on fibers, one side of the forming die is used for providing traction force required by pultrusion through traction equipment and controlling pultrusion speed, a solidified section bar is pulled out of the forming die, one side of the forming die is provided with cutting equipment, and the cutting equipment is used for cutting the pulled section bar; the storage platform is arranged on one side of the cutting equipment and used for storing the cut sections.
Preferably, the fiber creel is a creel commonly used for pultrusion of composite materials and used for fixing fiber yarn rolls, and a rotary mandrel is adopted to avoid fiber torsion; the fiber creel is integrally arranged in an environment control room, the relative humidity of the environment control room is kept below 40%, and meanwhile, the environment control room is always kept in a positive pressure environment to prevent external moisture from entering.
Preferably, the temperature setting temperature of the dehumidification equipment is 100-500 ℃; the length of the dehumidification equipment can be increased and decreased in a modularized mode according to the pulling speed of pultrusion.
Preferably, the heating device of the dehumidification device is any one of an air heating oven, an infrared radiation oven, a cycle meter and a muffle furnace; dehumidification equipment lets in the steam of drying at the dehumidification equipment access & exit for preventing to bring the moisture in the fibre motion process into, guarantees that the dehumidification equipment access & exit is in the pressure-fired all the time.
Preferably, the dehumidifying apparatus is provided in a structure with a tapered shape from a fiber inlet to an outlet, and the outlet end is directly connected to the injection box.
Preferably, the dehumidification equipment is provided with a connecting pipeline designed at an equipment outlet, and the pipeline has the functions of heat preservation and sealing and prevents the dehumidified fibers from contacting air.
Preferably, the injection system can be a single component, a double component or a three component and above;
the injection system is internally provided with a synthesis tank for preparing additives, the synthesis tank is provided with a vacuum and ventilation system, and the synthesis tank is directly connected to the resin material tank to realize program-controlled feeding or single manual feeding;
the synthesis tank is also provided with a weight weighing device which can accurately control the dosage of the output additives;
the resin material tank has the functions of heating, heat preservation and cooling, and the heat preservation temperature of the material tank is 100-150 ℃ during normal work;
the pipeline system of the injection system has heat preservation and heating functions;
the control system of the injection system comprises a programmable controller, the whole glue injection system is automatically controlled, and the metering unit, the temperature control system, the charging bucket stirring part and the mixing head injection part work in coordination according to a program.
Preferably, various functional parameter settings of a control system of the injection system can be operated on a menu, the control system has a fault alarm function, fault information of various detection points is displayed on an operator, the operator gives an alarm by sound, the equipment is automatically stopped, and the equipment can be restarted after the fault is eliminated;
the mixing head of the injection system is a static mixing head or a dynamic mixing head; the mixing head has the functions of heating and heat preservation;
a solvent cleaning system is designed at a discharge port of a mixing head of the injection system, and after the resin conveying is stopped, cleaning liquid is immediately injected into the solvent cleaning system and is repeatedly injected into the solvent cleaning system for many times until the resin cleaning system is cleaned up.
Preferably, the front end of the injection box is provided with a yarn arranging plate, so that fiber yarns can be regularly arranged after entering the injection box;
a tear-shaped cavity is designed in the injection box, and resin injection ports are designed on the upper surface or the lower surface or the upper surface and the lower surface of the cavity of the injection box;
the front end of the cavity in the injection box is provided with a reducing section from large to small, and the reducing section is used for preventing resin from overflowing from the inside of the injection box to the outside;
the injection box has a heating function, and the heating mode comprises any one of electric heating, oil heating and microwave heating;
preferably, the temperature of a resin polymerization section of the forming die is set to be 140-200 ℃, and the temperature of a resin crystallization section is set to be 120-180 ℃;
the heating mode of the forming die comprises any one of electric heating, oil heating and microwave heating.
Preferably, heat insulation plates or water cooling are designed among the injection box, the resin polymerization section of the forming mold and the resin crystallization section of the forming mold to prevent temperature cross.
Preferably, the injection box and the molding die are one die cavity or a plurality of die cavities;
the resin injection of the injection box with multiple mold cavities is realized by injecting through a plurality of gun heads, or introducing resin into a single gun head through a flow channel, or introducing resin into a plurality of resin pipelines led out from the single gun head.
Preferably, the cutting equipment is any one of numerical control cutting equipment, laser cutting equipment or water cutting equipment;
a dust collection system is designed on one side of the cutting equipment to prevent dust pollution or short circuit; the cutting equipment cuts the section at a fixed length through the meter counter and the control program.
Preferably, the storage table is stationary or mobile.
Compared with the prior art, the invention has the beneficial effects that:
(1) the energy consumption is low, and the severe production environment of a workshop is reduced;
(2) the product has good fiber wettability, low porosity and high mechanical property;
(3) the manufactured product can be recycled;
(4) the mass, automatic and high-beat production can be realized;
(5) the module can be designed, and the modification and replacement are convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a production line of a continuous fiber reinforced thermoplastic resin based composite profile according to the present invention;
fig. 2 is a schematic view of the injection cassette of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-fiber creel, 2-dehumidification equipment, 3-injection system, 4-mixing head, 5-pipeline system, 6-injection box, 7-forming mould, 8-control system, 9-control cabinet, 10-traction equipment, 11-cutting equipment, 12-storage table and 13-environment control room.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: as shown in fig. 1-2, the continuous fiber reinforced thermoplastic resin based composite material profile production line of the present embodiment comprises a fiber creel 1, a dehumidifying apparatus 2, an injection system 3, an injection box 6, a forming mold 7, a traction apparatus 10, a cutting apparatus 11, a storage table 12 and a control system 8 in sequence.
The fiber creel 1 is a creel commonly used for pultrusion of composite materials and used for fixing fiber yarn rolls, and a rotary mandrel is adopted to avoid fiber torsion.
Each layer of the fiber creel 1 is provided with a fiber yarn guide hole at the outlet end;
the fiber creel 1 and the control system 8 are controlled in an integrated mode, and real-time tension can be displayed;
the fiber creel 1 is integrally arranged in an environment control room 13, the relative humidity of the environment control room 13 is kept below 40%, and meanwhile, the environment control room 13 is always kept in a positive pressure environment to prevent external moisture from entering;
the dehumidifying equipment 2 is mainly used for removing redundant water or sizing agent in the fiber so as to be beneficial to the smooth operation of the subsequent polymerization reaction;
the temperature of the dehumidification equipment 2 is 100-500 ℃;
the length of the dehumidifying equipment 2 can be increased and decreased in a modularized mode according to the pulling and extruding speed;
the heating equipment of the dehumidification equipment 2 is any one of an air heating oven, an infrared radiation oven, a cycle meter and a muffle furnace;
in order to prevent moisture from being brought in during the fiber movement process, the dehumidifying equipment 2 is introduced with dried hot air at the inlet and outlet of the dehumidifying equipment 2, so that the inlet and outlet of the dehumidifying equipment 2 are always in micro-positive pressure;
a. the dehumidifying apparatus 2 may be designed in a structure in which the shape is gradually reduced from the inlet to the outlet of the fiber, the outlet being directly connected to the resin injection box 6;
b. the dehumidifying equipment 2 can also be provided with a connecting pipeline at the outlet of the equipment, and the pipeline has the functions of heat preservation and sealing, so that the possibility that the dehumidified fiber is contacted with air is prevented;
the injection system 3 comprises but is not limited to a resin tank unit, a flow metering unit, a circulating unit, a mixing head 4, a vacuum system, a temperature control system, a pipeline system 5, a host bracket, a cleaning system, a nitrogen sealing system and an electrical control system;
the injection system 3 can be a single component, a double component or a three-component or more;
the injection system 3 may be equipped with a synthesis tank of additives for its own synthesis, which synthesis tank is provided with a vacuum and venting system. The tank of the synthesis tank can be directly connected to the resin tank to realize program-controlled feeding or be independently and manually fed;
the injection system 3 is provided with a weight weighing device for accurately controlling the dosage of the output additives;
the injection system 3 material tank has the functions of heating, heat preservation and cooling, and the heat preservation temperature of the material tank is 100-150 ℃ during normal work;
the pipeline system 5 of the injection system 3 has heat preservation and heating functions so as to ensure that the temperature of the resin is unchanged after the resin comes out of the charging bucket;
the control system of the injection system 3 comprises a programmable controller, and automatically controls the whole glue injection system, so that the metering unit, the temperature control system, the charging bucket stirring part and the mixing head injection part work coordinately according to programs, and reliable and efficient action is ensured.
The control system 8 of the injection system 3 is operable on a menu for various functional parameter settings, the control system 8 has a malfunction alerting function, the malfunction information of each detection point is displayed on the operator and an audible alert is given, the device is automatically shut down, and the device can be restarted after the malfunction is cleared.
The mixing head 4 of the injection system 3 may be a static mixing head or a dynamic mixing head. The mixing head 4 has the functions of heating and heat preservation;
a solvent cleaning system is designed at a discharge port of a mixing head 4 of the injection system 3, and after the resin conveying is stopped, cleaning liquid is immediately injected into the solvent cleaning system and is repeatedly injected into the solvent cleaning system for many times until the resin cleaning system is cleaned;
the injection pressure, the injection flow and the mixing ratio of the injection system 3 can be adjusted;
a glue outlet at the tail part of a mixing head 4 of the injection system 3 is directly connected with an injection port of the injection box, and the mixed glue solution directly enters a mold cavity of the injection box;
the injection box 6 is used for storing glue solution injected from the mixing head 4, and the fiber passes through the injection box 6 and is soaked by resin;
the front end of the injection box 6 is provided with a yarn arranging plate, so that fiber yarns can be regularly arranged after entering the injection box 6;
the injection box 6 is internally designed with a tear-shaped cavity 14, and the upper surface or the lower surface or the upper and the lower surfaces of the cavity 14 of the injection box are provided with resin injection ports 16;
the front end of the cavity in the injection box 6 is provided with a reducing section 15 from big to small, which is used for preventing the resin from overflowing from the inside of the injection box;
the injection box 6 has a heating function, and the heating mode comprises any one of electric heating, oil heating and microwave heating;
the molding die 7 includes a resin polymerization section and a resin crystallization section;
the temperature of the resin polymerization section of the forming die 7 is set to be 140-200 ℃, and the temperature of the resin crystallization section is set to be 120-180 ℃;
the heating method of the forming mold 7 includes, but is not limited to, electric heating, oil heating, microwave heating, etc.;
a thermal insulation plate is designed among the injection box 6, the resin polymerization section of the forming mould 7 and the resin crystallization section of the forming mould or water cooling is carried out to prevent temperature cross;
the injection box 6 and the molding die 7 are a single cavity or a plurality of cavities.
The multi-cavity injection box 6 is used for resin injection through a plurality of gun heads, or a single gun head introduces resin through a runner, or a plurality of paths of resin pipelines are led out from the single gun head to introduce resin;
the pulling device 10 is used to provide the pulling force required for pultrusion and to control the pultrusion speed and is the means by which the solidified profile is pulled out of the forming die 7. The magnitude of the traction force and the clamping mode are selected according to the type of the pultruded product. The tractor is divided into a hydraulic mechanical type and a crawler type;
the cutting device 11 is used for cutting the drawn section bar;
the cutting device 11 is any one of a numerical control cutting device, a laser cutting device or a water cutting device;
a dust collection system is designed on one side of the cutting equipment 11 to prevent dust pollution or short circuit;
the cutting equipment 11 cuts the section at a fixed length through a meter counter and a control program;
the storage table 12 is used for storing the cut section bar, and the storage table 12 is fixed or movable;
wherein:
the production line is provided with an expansion interface which can be connected with production management systems such as MES and the like;
the production line can integrate an online quality detection system, such as online rigidity detection, online nondestructive detection and the like;
the production line fiber comprises but is not limited to reinforcing materials such as glass fiber, carbon fiber, basalt fiber and natural fiber;
the thermoplastic resin of the production line comprises but is not limited to nylon 6, nylon 66, nylon 12 and other resins;
the production line can be used for molding linear profiles and can also be used for molding non-linear profiles;
the electronic and electrical equipment of the production line are subjected to electrostatic dust prevention protection to prevent the occurrence of short circuit of the circuit;
all the equipment needing temperature control in the production is designed with thermocouples for temperature measurement;
the specific implementation comprises the following steps:
1) material preparation
A certain mass of the reaction resin and the related additives are weighed and then added into the bucket of the injection system 3 and melted by heating. And starting a vacuum pump to perform vacuum extraction operation on the components in the material tank for a certain time, closing the vacuum pump after the vacuum extraction is completed, and starting a nitrogen sealing system to pass through inert gas.
2) Yarn preparation
The environment control room 13 is opened in advance, the relative humidity is controlled to be less than 40%, fiber yarn rolls are sequentially placed on the fiber yarn creel 1, yarn is led out of the creel 1 through the yarn guide holes and is evenly and integrally arranged, and then the yarn barrel is pulled by the traction equipment 10 to move.
3) Fiber dehumidification
After yarn discharging, dehumidifying the yarns through dehumidifying equipment 2 with the preset temperature of 150 ℃;
4) resin injection
After the dehumidification by the dehumidification device 2, the yarn passes through the tapering 15 and enters the injection chamber 14 of the injection box 6. The injection system 3 starts the mixing head 4 to perform continuous glue injection through the resin injection port 16 on the injection box 6 through a program set in the control system 8, and the proportion and the flow rate of the resin are modified according to the traction speed of the traction device 10.
5) Resin polymerization and crystallization
After the fiber injection is completed, the yarn mixed with the resin enters the forming mold 7. Firstly, the polymerization reaction is carried out through the polymerization section in the forming die 7, and then the crystallization reaction is carried out in the crystallization section in the forming die 7. The temperature of the polymerization section of the forming die 7 is set to be 140-200 ℃, and the temperature of the crystallization section is set to be 120-180 DEG C
6) Cut to length and store
The section bar after the shaping is cut by fixed length through cutting equipment 11, and the part is neatly placed on storage platform 12 by manual work or robot after the cutting is accomplished. Put a certain amount and put in storage or transferred to the next procedure.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (14)
1. The utility model provides a fashioned production line of continuous fibers reinforcing thermoplastic resin base combined material section bar which characterized in that: mainly comprises the following components: the device comprises a fiber creel (1), dehumidifying equipment (2), an injection system (3), an injection box (6), a forming mold (7), traction equipment (10), cutting equipment (11), a storage table (12) and a control system (8);
the outlet end of every layer of fibre creel (1) all is provided with fibre thread guide hole, fibre creel (1) and control system (8) integrated control can show real-time tension, one side of fibre creel (1) sets up dehumidification equipment (2), dries the fibre through dehumidification equipment (2), one side of dehumidification equipment (2) sets up injection box (6), injection box (6) are used for storing the glue solution of following mixing head (4) injection, and the fibre passes through injection box (6) and is soaked by resin, injection box (6) carry out injection pressure, injection flow and mixing ratio homoenergetic through injection system (3) and adjust, injection system (3) contain resin material jar unit, flow metering unit, circulation unit, mixing head (4), vacuum system, temperature control system, pipe-line system (5), host computer bracket homoenergetic and adjust, The device comprises a cleaning system, a nitrogen sealing system and an electrical control system;
a glue outlet at the tail part of a mixing head (4) on the injection system (3) is directly connected with an injection port of an injection box (6), and the mixed glue solution directly enters a mold cavity of the injection box (6); a forming mold (7) is arranged on one side of the injection box (6), the forming mold (7) comprises a resin polymerization section and a resin crystallization section, fibers are subjected to thermal forming, traction force required by pultrusion is provided and pultrusion speed is controlled on one side of the forming mold (7) through a traction device (10), a solidified profile is pulled out of the forming mold (7), a cutting device (11) is arranged on one side of the forming mold (7), and the cutting device (11) is used for cutting the pulled profile; the storage table (12) is arranged on one side of the cutting equipment (11) and used for storing the cut sections.
2. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the fiber creel (1) is a creel commonly used for pultrusion of composite materials and used for fixing fiber yarn rolls, and a rotary mandrel is adopted to avoid fiber torsion; the fiber creel (1) is integrally placed in an environment control room (13), the relative humidity of the environment control room (13) is kept below 40%, and meanwhile, the environment control room (13) is always kept in a positive pressure environment to prevent external moisture from entering.
3. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the temperature of the dehumidification equipment (2) is set to be 100-500 ℃; the length of the dehumidification equipment (2) can be increased and decreased in a modularized mode according to the pulling speed of pultrusion.
4. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the heating equipment of the dehumidification equipment (2) is any one of an air heating oven, an infrared radiation oven, a cycle meter and a muffle furnace; dehumidification equipment (2) are for preventing to bring into the moisture in the fibre motion process, let in the steam of dry at dehumidification equipment (2) access & exit, guarantee that dehumidification equipment (2) access & exit is in the pressure-fired all the time.
5. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the dehumidifying device (2) is arranged in a structure with a shape gradually reduced from a fiber inlet to a fiber outlet, and the outlet end is directly connected with an injection box (6).
6. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: dehumidification equipment (2) set up to equipment outlet design connecting tube, and the pipeline has heat preservation and sealed function, prevents the fibre contact air after the dehumidification.
7. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the injection system (3) can be a single component, a double component or a three-component or more;
a synthesis tank for configuring additives is arranged in the injection system (3), the synthesis tank is provided with a vacuum and ventilation system, and the synthesis tank is directly connected to a resin material tank to realize program control feeding or single manual feeding;
the synthesis tank is also provided with a weight weighing device which can accurately control the dosage of the output additives;
the resin material tank has the functions of heating, heat preservation and cooling, and the heat preservation temperature of the material tank is 100-150 ℃ during normal work;
the pipeline system (5) of the injection system (3) has heat preservation and heating functions;
and the control system (8) of the injection system (3) comprises a programmable controller, the whole glue injection system is automatically controlled, and the metering unit, the temperature control system, the charging bucket stirring part and the mixing head injection part work in a coordinated manner according to a program.
8. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 7, wherein: various functional parameter settings of a control system (8) of the injection system (3) can be operated on a menu, the control system (8) has a fault alarm function, fault information of each detection point is displayed on an operator, a sound alarm is given, the equipment is automatically stopped, and the equipment can be restarted after the fault is eliminated;
the mixing head (4) of the injection system (3) is a static mixing head or a dynamic mixing head; the mixing head (4) has the functions of heating and heat preservation;
a solvent cleaning system is designed at a discharge port of a mixing head (4) of the injection system (3), and when the resin conveying is stopped, cleaning liquid is immediately injected into the solvent cleaning system, and the solvent cleaning system is repeatedly used for a plurality of times until the resin cleaning system is cleaned up.
9. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 8, wherein: the front end of the injection box (6) is provided with a yarn arranging plate, so that fiber yarns can be regularly arranged after entering the injection box (6);
a tear-shaped cavity (14) is designed in the injection box (6), and a resin injection port (16) is designed on the upper surface or the lower surface or the upper and the lower surfaces of the cavity (14) of the injection box (6);
the front end of the inner cavity of the injection box (6) is provided with a reducing section (15) from big to small, and the reducing section is used for preventing the resin from overflowing from the inside of the injection box to the outside;
the injection box (6) has a heating function, and the heating mode comprises any one of electric heating, oil heating and microwave heating.
10. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the temperature of a resin polymerization section of the forming die (7) is set to be 140-200 ℃, and the temperature of a resin crystallization section is set to be 120-180 ℃;
the heating mode of the forming die (7) comprises any one of electric heating, oil heating and microwave heating.
11. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein:
and heat insulation plates or water cooling are designed among the injection box (6), the resin polymerization section of the forming mold (7) and the resin crystallization section of the forming mold (7) to prevent temperature cross.
12. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the injection box (6) and the forming mould (7) are a mould cavity or a plurality of mould cavities;
the resin injection of the injection box (6) with multiple mold cavities is realized by injecting a plurality of gun heads, or introducing resin by a single gun head through a flow channel, or introducing the resin by a plurality of resin pipelines led out from the single gun head.
13. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the cutting equipment (11) is any one of numerical control cutting equipment, laser cutting equipment or water cutting equipment;
a dust collection system is designed on one side of the cutting equipment (11) to prevent dust pollution or circuit short circuit; and the cutting equipment (11) cuts the section at a fixed length through a meter counter and a control program.
14. The production line for forming the continuous fiber reinforced thermoplastic resin based composite material profile as claimed in claim 1, wherein: the storage table (12) is fixed or mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN113418560A (en) * | 2021-06-29 | 2021-09-21 | 哈尔滨工业大学 | Equipment and method for rapidly formulating molding process parameters of resin-based composite material |
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