CN112339301A

CN112339301A - Pultrusion material production system, pultrusion material production method and glass fiber reinforced plastic pultrusion strip

Info

Publication number: CN112339301A
Application number: CN202011250620.2A
Authority: CN
Inventors: 张健侃; 张岩; 周群辉; 赵峰
Original assignee: Zhenshi Group Huazhi Research Institute Zhejiang Co Ltd
Current assignee: Zhenshi Group Huazhi Research Institute Zhejiang Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-09

Abstract

The invention discloses a pultrusion material production system, a production method and a glass fiber reinforced plastic pultrusion strip, wherein the pultrusion material production system comprises: the device comprises a yarn supply system, a gum dipping system, a curing system and a traction mechanism. The impregnation system comprises a first impregnation area, a second impregnation area and a pultrusion area, and a glue dripping plate is arranged between the first impregnation area and the second impregnation area; the first impregnation area is used for fiber primary impregnation of resin, the glue draining plate is used for scraping part of resin subjected to fiber primary impregnation, and the second impregnation area is used for fiber secondary impregnation; the fibers are extruded through the pultrusion zone into a predetermined shape of fiber-resin material. The utility model provides a pultrusion material production system, the bubble that the resin produced is infiltrated to the fibre secondary is less, reduces the bubble content in the glass steel that pultrusion obtained, and glass steel intensity is high.

Description

Pultrusion material production system, pultrusion material production method and glass fiber reinforced plastic pultrusion strip

Technical Field

The invention relates to the technical field of pultrusion processes, in particular to a pultrusion material production system, a pultrusion material production method and a glass fiber reinforced plastic pultrusion strip.

Background

The glass fiber reinforced plastic pultrusion section has the characteristics of good insulating property, corrosion resistance, light weight, tensile strength, impact resistance, sound insulation, heat insulation and the like, and is widely applied to the fields of chemical corrosion resistance, sewage treatment, electrical insulation, energy exploitation, traffic transportation, electronic communication and the like. The glass fiber reinforced plastic pultrusion section is produced by a continuous production method of composite materials, twistless glass fiber roving on a creel, other continuous reinforcing material felts, polyester surface felts and the like are subjected to resin impregnation, then the twistless glass fiber roving passes through a forming die keeping a certain section shape, and the twistless glass fiber roving is cured and formed in the die and then is continuously demoulded.

However, bubbles are generated during the process of impregnating the glass fiber yarns with resin, so that the pultruded glass fiber reinforced plastics have high bubble content, and the strength of the glass fiber reinforced plastics is influenced. In order to reduce the bubbles in the pultruded glass fiber reinforced plastic, a method of extruding the bubbles in the resin during flash or pultrusion is currently used, but it is difficult to extrude the bubbles in the resin inside the glass fiber reinforced plastic.

Disclosure of Invention

In order to solve the technical problems, reduce bubbles in the glass fiber reinforced plastics and improve the strength of the glass fiber reinforced plastics, the invention provides a pultrusion material production system, a pultrusion material production method and a glass fiber reinforced plastics pultrusion strip.

According to one aspect of the present invention, there is provided a pultruded material production system comprising: the yarn feeding system, the gum dipping system, the curing system and the traction mechanism are sequentially arranged along the pultrusion direction; the yarn supply system is used for continuously supplying yarns to the production system according to a preset rule; the impregnation system comprises a first impregnation area, a second impregnation area and a pultrusion area, and a glue dripping plate is arranged between the first impregnation area and the second impregnation area; the first glue dipping area and the second glue dipping area are filled with resin, the first glue dipping area is used for soaking the resin for the fiber for the first time, the glue dripping plate is used for dripping partial resin soaked for the fiber in the first glue dipping area for the first time, and the second glue dipping area is used for soaking the resin for the fiber for the second time; a plurality of fibers after being soaked with the resin for the second time pass through the pultrusion area, and the pultrusion area extrudes a plurality of fibers into a fiber-resin material with a preset shape; the curing system is used for emitting ultraviolet light, the ultraviolet light irradiates the fiber-resin material with a preset shape, and resin in the fiber-resin material is cured to obtain a fiber pultrusion material; the pulling mechanism is used for pulling the fibers to be continuously pultruded in the production system at a preset speed.

Optionally, along the pultrusion direction, the first dipping area comprises a first spraying unit and a first soaking unit which are sequentially arranged, and the second dipping area comprises a second spraying unit and a second soaking unit which are sequentially arranged; the first spraying unit is provided with a plurality of first nozzles for spraying resin to the fibers, the first nozzles spray the resin to the surfaces of the fibers, and the resin-coated fibers penetrate into the fibers; the second spraying unit is provided with a plurality of second nozzles for spraying resin to the fibers, the second nozzles spray the resin to the surfaces of the fibers, and the surfaces of the fibers are wrapped by the resin.

Optionally, in the pultrusion direction, the pultrusion zone comprises a flash unit, a preforming unit, a third spraying unit and a forming unit; the flash unit is used for draining redundant resin on the surface of the fiber which penetrates out of the second impregnation area; the preforming unit comprises a preforming die, a plurality of fibers are bonded together through the preforming die, and the preforming die extrudes the plurality of fibers into a fiber-resin material with an initial shape and extrudes part of the resin; the third spraying unit is provided with a plurality of third nozzles, and the third nozzles spray resin to the fiber-resin material in the initial shape so that the resin is wrapped on the surface layer of the fiber-resin material in the initial shape; the molding unit includes a molding die that extrudes the fiber-resin material in an initial shape into a predetermined shape, resulting in a fiber-resin material in a predetermined shape.

Optionally, the yarn supply system includes a creel and a tension adjusting mechanism, the creel includes a plurality of yarn lattices for placing the fiber roll, the fiber roll is arranged in the yarn lattices of the creel according to a predetermined rule, and the tension adjusting mechanism is used for adjusting the tension of the fiber conveyed from the creel to the dipping system.

Optionally, a heating system arranged between the yarn supply system and the rubber dipping system is further included; the heating system is used for heating the fiber from the yarn supply system to a first preset temperature; the heating system comprises a heating mechanism and a heating channel, the heating channel is used for conveying a heating medium, and the fibers pass through the heating channel to exchange heat with the heating medium; the heating mechanism is used for heating the heating medium in the heating channel.

Optionally, a cooling system disposed between the curing system and the pulling mechanism; the cooling system is used for cooling the fiber pultrusion material from the curing system and cooling the fiber pultrusion material to a second preset temperature; the cooling system comprises a cooling mechanism and a cooling channel, the cooling channel is used for conveying a cooling medium, and the fiber pultrusion material enters the cooling channel to exchange heat with the cooling medium; the cooling mechanism is used for cooling the cooling medium in the cooling channel.

Optionally, the dip system comprises a dip tank; yarn inlet holes are uniformly distributed on the first end wall of the gum dipping tank; a second end wall of the gum dipping tank is provided with a pultrusion material outlet; the fiber enters the impregnation tank from the first end wall of the impregnation tank, and the fiber-resin material with the preset shape obtained after primary impregnation, secondary impregnation and pultrusion in the impregnation tank penetrates out from the second end wall of the impregnation tank.

Optionally, the production system further comprises a constant temperature glue supply system; the constant-temperature glue supply device comprises a glue storage device and a heating unit, the glue storage device is used for supplying resin to the glue dipping tank and recovering the resin discharged from the glue dipping tank, and the heating unit heats the glue storage device to maintain the resin stored in the glue storage device at a third preset temperature; the bottom wall of the gumming groove is provided with a gum outlet, the side walls of the two sides of the gumming groove are provided with a gum inlet, the gum storage device is connected with the gum inlet of the gumming groove through a gum conveying pipe to supply resin to the gumming groove, and the gum outlet of the gumming groove is connected with the gum storage device through a gum outlet pipe.

According to a second aspect of the present invention, a method of producing a pultruded material is provided, performed in the pultruded material production system of the present application.

According to a third aspect of the present invention, there is provided a glass fiber reinforced plastic pultruded strip produced by the production system or the production method of the present application.

The application provides a pultrusion material production system, the gum dipping system is including the first gum dipping district and the second gum dipping district that set gradually, and the fibre gets into first gum dipping district earlier and carries out the gum dipping once, scrapes the resin that removes the fibre and soaks in first gum dipping district again, and the fibre gets into the second gum dipping district and soaks the resin back pultruding shaping, and the bubble that the fibre secondary soaks the resin and produces is less, reduces the bubble content in the glass steel that pultrusion obtained, and glass steel intensity is high.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a pultruded material production system according to the present application;

FIG. 2 is a schematic structural diagram of a gum dipping system in an embodiment;

FIG. 3 is a schematic view of a yarn supply system in an embodiment;

FIG. 4 is a schematic view of a heating system in an embodiment;

FIG. 5 is a schematic view of a cooling system in an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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. It should be noted that, in the embodiments and examples of the present application, the feature vectors may be arbitrarily combined with each other without conflict.

The application provides a pultrusion material production system, along the gumming direction, the gumming system is including the first gumming district 31 and the second gumming district 32 that set gradually, first gumming district 31 and second gumming district 32 are provided with the drop board 34, the fibre gets into gumming in the first gumming district 31, resin and glass fiber contact in the first gumming district 31 produce a large amount of bubbles, drop board 34 scrapes off the partial resin that the fibre was soaked in first gumming district 31, the fibre gets into second gumming district 32 secondary soaks the resin, the fibre surface is that the surface is moist when the fibre secondary soaks the resin, and the fibre top layer covers has the resin, the fibre is less at the second gumming district 32 bubble that again contact resin produced, reduce the bubble content among the glass steel that pultrusion obtained, glass steel intensity is high.

The pultrusion material production system of the present application, as shown in fig. 1, 2, comprises: the yarn feeding system 1, the gum dipping system 3, the curing system 4 and the traction mechanism 6 are sequentially arranged along the pultrusion direction; the yarn supply system 1 is used for continuously supplying yarns to the production system according to a preset rule; the impregnation system 3 comprises a first impregnation area 31, a second impregnation area 32 and a pultrusion area 33, wherein a glue draining plate 34 is arranged between the first impregnation area 31 and the second impregnation area 32; the first impregnation area 31 and the second impregnation area 32 are filled with resin, the first impregnation area 31 is used for impregnating the resin for the first time, the glue dripping plate 34 is used for dripping partial resin which is impregnated in the first impregnation area 31 by the fiber for the first time, and the second impregnation area 32 is used for impregnating the resin for the fiber for the second time; a plurality of fibers subjected to secondary resin impregnation pass through the pultrusion region 33, and the pultrusion region 33 extrudes the plurality of fibers into a fiber-resin material with a preset shape; the curing system 4 emits ultraviolet light, and the ultraviolet light irradiates the extruded fiber-resin material to obtain a fiber pultrusion material through cured resin; the pulling mechanism 6 is used to pull the fibres at a predetermined speed for continuous pultrusion in the production system.

The fiber is arranged on the yarn supply system 1 according to a preset rule, one end of the fiber penetrates through a gum dipping system 3 and a curing system 4 of the production system to be connected with a traction mechanism 6, and the traction mechanism 6 draws the fiber to continuously advance in the production system at a preset speed and pultrudes the fiber into a fiber pultrusion material.

As an example, as shown in fig. 2, in the pultrusion direction, the first dip zone 31 includes a first spraying unit 311 and a first soaking unit 312 which are arranged in sequence, and the second dip zone 32 includes a second spraying unit 321 and a second soaking unit 322 which are arranged in sequence. The first spraying unit 311 is provided with a plurality of first nozzles for spraying resin to the fibers, the first nozzles spray resin to the surfaces of the fibers, and the resin-coated fibers penetrate into the fibers. The second spraying unit 321 is provided with a plurality of second nozzles for spraying resin to the fibers, the second nozzles spray resin to the surfaces of the fibers, and the surfaces of the fibers are wrapped by the resin to reduce bubbles generated by the fibers entering the second soaking unit 322 and contacting with the resin.

In the field of glass fiber pultrusion, glass fibers are infiltrated in a mode of penetrating through a resin tank conventionally, the situation that the glass fibers cannot infiltrate the resin fully often occurs, and waste products caused by defects are easy to generate. The method generally adopted is to slow the pultrusion traction speed and lengthen the length of the resin tank so as to increase the time for soaking the glass fiber in the resin, which can reduce the productivity and increase the production cost, and the soaking effect is unstable, so that the problem of uneven soaking of the glass fiber often occurs.

The first glue dipping area 31 of the present application is provided with the first spraying unit 311 before the first dipping unit 312, the fiber enters the first spraying unit 311 first, the first nozzle sprays resin to the surface of the fiber, and the resin wraps the surface of the fiber, so that the surface of the fiber entering the first dipping unit 312 is wet, the wettability of the fiber is improved, and the resin can be fully dipped in the first dipping unit 312.

The fibers enter the second impregnation area 32 from the first impregnation area 31 and pass through the glue dripping plate 34, the glue dripping plate 34 drips part of the resin soaked in the first soaking unit 312, the fibers enter the second impregnation area 32 and pass through the second spraying unit 321, and the second spraying unit 321 sprays the resin to the fiber surface to ensure that the wet fibers entering the resin surface of the second soaking unit 322 can be fully soaked in the second soaking unit 322, and after the fiber surface is coated with a layer of resin, fewer bubbles are generated by the contact between the fiber soaking second soaking unit 322 and the resin, so that the bubbles in the pultruded material obtained by pultrusion are further reduced.

As an example, in the pultrusion direction, as shown in fig. 2, the pultrusion zone 33 includes a flash unit 331, a preforming unit 332, a third spraying unit 333, and a shaping unit 334; the flash unit 331 is used for draining the excess resin on the surface of the fiber passing through the second glue dipping area 322; the preforming unit 332 includes a preforming mold 01 through which the plurality of fibers are bonded together, the preforming mold 01 extruding the plurality of fibers into a fiber-resin material of an original shape and extruding a part of the resin; the third spraying unit 333 is provided with a plurality of third nozzles that spray resin to the fiber-resin material of the initial shape so that the resin is wrapped on the surface layer of the fiber-resin material of the initial shape; the molding unit 334 includes a molding die 02, and the molding die 02 extrudes the fiber-resin material in an initial shape into a predetermined shape, resulting in a fiber-resin material in a predetermined shape.

The fiber enters the flash unit 331, the excess resin on the surface of the fiber drops into the flash unit 331, the fiber enters the preforming unit 332, and the preforming tool 01 presses the fiber to extrude the excess resin on the surface of the fiber and the inner part of the fiber. The third spraying unit 333 sprays the resin onto the surface of the fiber-resin material extruded in the initial shape so that the resin is wrapped on the surface of the fiber-resin material in the initial shape, so that the surface of the fiber-resin material in the predetermined shape obtained by pultrusion is the resin, and the fiber is prevented from being exposed on the surface of the fiber-resin material.

Wherein the preforming unit 332 comprises a plurality of preforming dies 01, and the plurality of preforming dies 01 in the preforming unit 332 are gradually reduced in size along the pultrusion direction. The molding unit 334 includes a plurality of molding dies 02, and the plurality of molding dies 02 in the molding unit 334 are gradually reduced in size in the pultrusion direction.

The cavity of the molding die 02 and the cavity of the preforming die 01 have the same shape and are reduced in equal proportion to the cavity of the preforming die 01.

As an example, the curing system 4 includes a UV lamp mold. The curing system 4 comprises a plurality of groups of UV lamps emitting ultraviolet light with different wavelengths; the resin used for spraying and infiltrating the fibers in the production system is ultraviolet curable resin, the fiber-resin material in the preset shape obtained by pultrusion in the pultrusion area 33 is irradiated by a plurality of groups of UV lamps of the curing system 4, the ultraviolet curable resin is rapidly cured under the irradiation of ultraviolet light with different wavelengths, and the fiber-resin material in the preset shape is cured to obtain the glass fiber reinforced plastic pultrusion strip.

For example, along the fiber pultrusion direction, the curing system 4 comprises a first UV lamp and a second UV lamp which are arranged in sequence, wherein the first UV lamp is used for emitting ultraviolet light with the wavelength of 320-400nm, and the second UV lamp is used for emitting ultraviolet light with the wavelength of 220-320 nm.

As an example, as shown in fig. 1 and 3, the yarn supply system 1 includes a creel 10 and a tension adjusting mechanism 12, the creel 10 includes a plurality of yarn lattices 11 for placing fiber rolls, the fiber rolls are arranged in the yarn lattices 11 of the creel 10 according to a predetermined rule, and the tension adjusting mechanism 12 is used for adjusting the tension of the fibers conveyed from the creel 10 to the impregnation system 3.

Based on the above example, in a preferred embodiment, a winding drum for winding fibers is placed in each yarn cell 11 of the yarn supply system 1, a yarn guide magnetic eye is arranged on one side of the yarn cell 11 facing the pultrusion direction, the fibers on the winding drum are threaded out from the yarn guide magnetic eye, and a tension adjusting mechanism 12 is arranged at each yarn guide magnetic eye outlet. The tension adjusting mechanism 12 includes a reed tensioner and a roller tensioner. The tension of each yarn threaded out of the yarn supply system 1 in this application is controlled individually, and the tension of each yarn is controlled to be 100cN to 1000 cN.

As an example, as shown in fig. 1 and 4, the yarn-spinning machine further comprises a heating system 2 arranged between the yarn-supplying system 1 and the dipping system 3; the heating system 2 is used for heating the fiber from the yarn supply system 1 to a first preset temperature; the heating system 2 comprises a heating mechanism 21 and a heating channel 22, wherein the heating channel 22 conveys a heating medium, and the fibers pass through the heating channel 22 to exchange heat with the heating medium; the heating mechanism 21 serves to heat the heating medium in the heating passage 22.

Based on the above example, in one possible implementation, the heating medium in the heating channel 22 of the present application is hot air with a temperature of 90-100 ℃, and the temperature of the fiber passing out of the heating channel is 50-60 ℃. The heating channel 22 is provided with a first fan to make the flow direction of the hot air in the heating channel opposite to the fiber advancing direction, and the heating channel 22 is communicated with the return channel to convey the air heated by the fibers to the heating mechanism 21 for heating and then to convey the air into the heating channel 22 for circular heating. The fibers are in heat convection with hot air in the heating channel 22, the temperature of the fiber surface is increased to accelerate the molecular motion of the resin in the fiber surface when the resin is sprayed on the fiber surface subsequently, so as to achieve good permeation of the fiber and the resin.

Based on the above example, in a preferred embodiment, the heating medium in the heating channel 22 of the present application is water vapor, the heating mechanism 21 is a steam generator, the heating mechanism 21 delivers the generated water vapor into the heating channel 22 and flows in a direction opposite to the fiber traveling direction under the action of the first fan, and the fibers enter the heating channel 22 to exchange heat with the water vapor in a convection manner. In the embodiment, the temperature of the fiber surface is increased, the humidity of the fiber surface is increased, and the infiltration effect of the fiber and the resin is further improved, so that the resin can better penetrate the fiber, and the infiltration efficiency is improved.

The two ends of the heating channel 22 are both threading plates, the fibers conveyed from the yarn supply system 1 according to a preset rule enter the heating channel 22 from the threading plate at one end of the heating channel 22 according to the preset rule, and the fibers penetrate out of the threading plate at the other end of the heating channel 22 according to the preset rule after being heated in the heating channel 22. Under these conditions, it is ensured that each fiber is uniformly heated in the heating passage 22.

As an example, as shown in fig. 1 and 5, a cooling system 5 is further included between the traction mechanisms 6 after the curing system 4; the cooling system is used for cooling the fiber pultrusion material from the curing system 4 and cooling the fiber pultrusion material to a second preset temperature; the cooling system 5 comprises a cooling mechanism 51 and a cooling channel 52, wherein a cooling medium is conveyed in the cooling channel 52, and the fiber pultrusion material enters the cooling channel 52 to exchange heat with the cooling medium; the cooling mechanism 51 is used to cool the cooling medium in the cooling passage 52.

Wherein, the cooling medium is cold air or cold water below 20 ℃, the fiber pultrusion material enters the cooling channel 52 to exchange heat with the cold air or cold water below 20 ℃, so that the temperature of the fiber pultrusion material which penetrates out of the cooling channel 52 is lower than 50 ℃.

As an example, as shown in fig. 2, the gumming system 3 includes a gumming tank 30; yarn inlet holes are uniformly distributed in the first end wall 301 of the glue dipping tank 30; the second end wall 302 of the dip tank 30 is provided with a pultrusion material outlet; the fiber enters the first impregnation area 31 from the first end wall 301 of the impregnation tank 301, and the fiber pultruded material obtained after the fiber is subjected to primary impregnation, secondary impregnation and pultrusion in the impregnation tank 30 penetrates out from the second end wall 302 of the impregnation tank 30.

Based on the above example, in a preferred embodiment, as shown in fig. 2, a first threading plate 35, a glue dripping plate 34, a second threading plate 36, and a third threading plate 37 are sequentially arranged in a glue dipping tank 30; a first spraying unit 311 is arranged between the first end wall 301 and the first yarn threading plate 35; a first infiltration unit 312 is arranged between the first threading plate 35 and the glue dripping plate 34; a second spraying unit 321 is arranged between the glue draining plate 34 and the second threading plate 36, and a second soaking unit 322 is arranged between the second threading plate 36 and the third threading plate 37; between the third threader plate 37 and the second end wall 302 is a pultruded area 33.

The first end wall 301, the first threading plate 35, the second threading plate 36 and the third threading plate 37 are identical array pore plates, the glue dripping plate 34 is an array pore plate, the array pore arrangement of the glue dripping plate 34 is identical to that of the first threading plate 35, and the aperture of the array pore of the glue dripping plate 34 is smaller than that of the array pore of the first threading plate 35 so as to scrape off resin soaked in the first soaking unit 312 by fibers.

The dipping system 3 is a closed dipping system, and the dipping tank 30 further includes a tank cover for closing the tank opening.

As an example, as shown in fig. 1, the production system further includes a constant temperature glue supply system 7; the constant-temperature glue supply system 7 includes a glue storage device 71 and a heating unit 72, the glue storage device 71 is used for supplying resin to the glue dipping tank 30 and recovering the resin discharged from the glue dipping tank 30, and the heating unit heats the glue storage device to maintain the resin stored in the glue storage device 71 at a third predetermined temperature.

The bottom wall of the dipping tank 30 is provided with a glue outlet, the side walls of the two sides of the dipping tank 30 are provided with glue inlets, the glue storage device 71 is connected with the glue inlet of the dipping tank 30 through a glue conveying pipe to supply resin to the dipping tank 30, and the glue outlet of the dipping tank 30 is connected with the glue storage device 71 through a glue outlet pipe to discharge waste resin to the glue storage device 71.

Based on the above example, in a possible embodiment, the glue dipping tank 30 is provided with glue inlets corresponding to two side walls of the first soaking unit 312 and the second soaking unit 322, the glue inlets are respectively connected with the glue storage tank 71 through glue conveying pipes, and the glue storage tank 71 supplies resin to the first soaking unit 312 and the second soaking unit 322 through the glue conveying pipes.

The glue storage tank 71 is also connected with the first nozzle of the first spraying unit 311, the second nozzle of the second spraying unit 321 and the third nozzle of the third spraying unit 333 through glue conveying pipes respectively and correspondingly supplies resin.

The glue dipping tank 30 is provided with glue outlets at the bottoms of the first soaking area 31, the second soaking area 32 and the pultrusion area 33, and the glue outlets are connected with the glue storage tank 71 through glue outlet pipes to discharge the waste resin out of the glue storage tank 71.

Based on the above example, in another possible embodiment, the glue supply system 7 may only include the glue storage tank 71, the wall of the glue storage tank 71 is a double-layer tank wall, and hot water is filled in the interlayer of the double-layer tank wall of the glue storage tank 71 to maintain the resin in the glue storage tank 71 at a predetermined temperature.

It is to be noted that, in this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover a non-exclusive inclusion, so that an article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.

The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.

Claims

1. A pultruded material production system, comprising: the yarn feeding system (1), the gum dipping system (3), the curing system (4) and the traction mechanism (6) are sequentially arranged along the pultrusion direction;

the yarn supply system (1) is used for continuously supplying yarns to the production system according to a preset rule;

the impregnation system (3) comprises a first impregnation area (31), a second impregnation area (32) and a pultrusion area (33), and a glue draining plate (34) is arranged between the first impregnation area (31) and the second impregnation area (32); the first impregnation area (31) and the second impregnation area (32) are filled with resin, the first impregnation area (31) is used for impregnating the fiber with resin for the first time, the glue draining plate (34) is used for draining part of resin once impregnated in the first impregnation area (31) by the fiber, and the second impregnation area (32) is used for impregnating the fiber with resin for the second time; a plurality of fibers subjected to secondary resin impregnation pass through the pultrusion zone (33), and the pultrusion zone (33) extrudes a plurality of fibers into a fiber-resin material with a preset shape;

the curing system (4) is used for emitting ultraviolet light, the ultraviolet light irradiates the fiber-resin material with a preset shape, and resin in the fiber-resin material is cured to obtain a fiber pultrusion material;

the pulling mechanism (6) is used for pulling the fibers to be continuously pultruded in the production system at a preset speed.

2. The pultruded material production system according to claim 1, wherein, in the pultrusion direction, the first dip zone (31) comprises a first spraying unit (311) and a first infiltration unit (312) arranged in sequence, and the second dip zone (32) comprises a second spraying unit (321) and a second infiltration unit (322) arranged in sequence;

the first spraying unit (311) is provided with a plurality of first nozzles for spraying resin to the fibers, the first nozzles spray the resin to the surfaces of the fibers, and the resin-coated fibers penetrate into the fibers;

the second spraying unit (321) is provided with a plurality of second nozzles for spraying resin to the fibers, the second nozzles spray the resin to the surfaces of the fibers, and the surfaces of the fibers are wrapped by the resin.

3. The pultruded material production system according to claim 2, wherein, in the pultrusion direction, the pultrusion zone (33) comprises a flash unit (331), a preforming unit (332), a third spraying unit (333), and a shaping unit (334);

the flash unit (331) is used for draining the excess resin on the surface of the fiber which passes through the second rubber dipping area (322);

the preforming unit (332) comprises a preforming die (01), a plurality of fibers are bonded together through the preforming die (01), and the preforming die (01) extrudes the plurality of fibers into a fiber-resin material with an initial shape and extrudes part of the resin;

the third spraying unit (333) is provided with a plurality of third nozzles which spray resin to the fiber-resin material in the initial shape so that the resin is wrapped on the surface layer of the fiber-resin material in the initial shape;

the molding unit (334) includes a molding die (02), and the molding die (02) extrudes the fiber-resin material in an initial shape into a predetermined shape, resulting in a fiber-resin material in a predetermined shape.

4. The pultruded material production system according to claim 1, wherein said yarn supply system (1) comprises a creel (10) and a tension adjustment mechanism (12), said creel (10) comprises a plurality of yarn lattices (11) for placing fiber rolls, said fiber rolls are arranged in a predetermined regular pattern in said plurality of yarn lattices (11) of said creel (10), said tension adjustment mechanism (12) is configured to adjust the tension of the fibers transported from said creel (10) to said dipping system (3).

5. The pultruded material production system according to claim 4, further comprising a heating system (2) arranged between the yarn supply system (1) and the impregnation system (3); the heating system (2) is used for heating the fiber from the yarn supply system (1) to a first preset temperature;

the heating system (2) comprises a heating mechanism (21) and a heating channel (22), wherein the heating channel (22) conveys a heating medium, and the fibers pass through the heating channel (22) to exchange heat with the heating medium; the heating mechanism (21) is used for heating the heating medium in the heating channel (22).

6. The pultruded material production system according to claim 1, further comprising a cooling system (5) arranged between said curing system (4) and said pulling mechanism (6); the cooling system is used for cooling the fiber pultrusion material from the curing system (4) and cooling the fiber pultrusion material to a second preset temperature;

the cooling system (5) comprises a cooling mechanism (51) and a cooling channel (52), the cooling channel (52) conveys a cooling medium, and the fiber pultrusion material enters the cooling channel (52) to exchange heat with the cooling medium; the cooling mechanism (51) is used for cooling the cooling medium in the cooling channel (52).

7. The pultruded material production system according to claim 3, wherein the dip system (3) comprises a dip tank (30); yarn inlet holes are uniformly distributed in the first end wall (301) of the glue dipping tank (30); a second end wall (302) of the glue dipping tank (30) is provided with a pultrusion material outlet; the fiber enters the impregnation tank (30) from the first end wall (301) of the impregnation tank (301), and the fiber-resin material with the preset shape obtained after primary impregnation, secondary impregnation and pultrusion in the impregnation tank (30) penetrates out from the second end wall (302) of the impregnation tank (30).

8. The pultruded material production system according to claim 7, wherein said production system further comprises a constant temperature glue supply system (7); the constant-temperature glue supply device comprises a glue storage device (71) and a heating unit (72), wherein the glue storage device (71) is used for supplying resin to the glue dipping tank (30) and recovering the resin discharged from the glue dipping tank (30), and the heating unit heats the glue storage device (71) to maintain the resin stored in the glue storage device (71) at a third preset temperature;

the bottom wall of the glue dipping tank (30) is provided with a glue outlet, the side walls of two sides of the glue dipping tank (30) are provided with glue inlets, the glue storage device (71) is connected with the glue inlets of the glue dipping tank (30) through a glue conveying pipe to supply resin to the glue dipping tank (30), and the glue outlet of the glue dipping tank (30) is connected with the glue storage device (71) through a glue outlet pipe.

9. A pultruded material production method, characterized in that it is carried out in a pultruded material production system according to any one of claims 1 to 8.

10. A glass fiber reinforced plastic pultruded strip produced by the production system according to any one of claims 1 to 8 or the production method according to claim 9.