CN111361181A - Production equipment for continuous fiber cloth three-dimensional reinforced wood-plastic composite material - Google Patents
Production equipment for continuous fiber cloth three-dimensional reinforced wood-plastic composite material Download PDFInfo
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- CN111361181A CN111361181A CN202010164619.1A CN202010164619A CN111361181A CN 111361181 A CN111361181 A CN 111361181A CN 202010164619 A CN202010164619 A CN 202010164619A CN 111361181 A CN111361181 A CN 111361181A
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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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/685—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates
- B29C70/686—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates the inserts being sheets or documents, e.g. ID cards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- 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
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
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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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses production equipment of a continuous fiber cloth three-dimensional reinforced wood-plastic composite material, which comprises an impregnation tank, a first curing device, a tension guide roller and a co-extrusion die which are sequentially arranged, wherein an impregnation cavity for containing thermosetting resin is arranged in the impregnation tank; the first curing device is used for curing the fiber cloth impregnated with the thermosetting resin; the co-extrusion die is provided with a first hole, a second hole and a third hole, the first hole is arranged along the horizontal direction, and the axis of the second hole forms an included angle with the axis of the first hole; the tension guide roller is used for adjusting the angle of the fiber cloth entering the second hole. According to the invention, the thermosetting resin impregnated fiber cloth is perfectly fixed on the surface layer of the wood-plastic composite material, so that the surface hardness of the wood-plastic composite material, the heated dimensional stability and the compression resistance in the thickness direction are increased, and the tensile property, the bending property, the impact resistance and the creep resistance of the wood-plastic composite material in the horizontal plane direction are enhanced.
Description
Technical Field
The invention relates to a device in the research field of a composite material co-extrusion forming device, in particular to production equipment of a continuous fiber cloth three-dimensional reinforced wood-plastic composite material.
Background
As a green environment-friendly composite material, the wood-plastic composite material is rapidly developed internationally in recent years and is widely applied to the fields of indoor decoration, automotive interior, outdoor garden landscape and the like. Due to the inherent creep characteristic of the thermoplastic polymer composite material and the brittle and breakable defects of wood and plastic under the condition of high wood fiber content, the application of the material is limited to indoor and outdoor decoration and garden landscape materials with anticorrosion and waterproof functions, and is not suitable for load-bearing structural materials with higher requirements on rigidity and toughness. The wood-plastic composite material can be reinforced and toughened to a certain degree by adopting continuous fiber sheets or fiber bundles and carrying out co-extrusion molding or compression molding. But because the interface compatibility between the reinforced fiber and the wood-plastic matrix is poor and the reinforcement performance is single, the interface compatibility between the reinforced fiber and the wood-plastic matrix is poor, the reinforcement and toughening effects are very limited, and the performance of the reinforced product can not meet the requirements of a bearing material; when the wood-plastic material is reinforced by the continuous glass fiber reinforced thermoplastic plastic sheet, the thermoplastic sheet is heated and melted to easily block a fiber feeding hole; the manufacturing process is complex, and a multi-stage forming mode is mostly adopted, so that the manufacturing cost is increased, and the stability of the material performance is reduced.
Disclosure of Invention
The invention aims to solve at least one of the technical problems in the prior art and provides production equipment for a continuous fiber cloth three-dimensional reinforced wood-plastic composite material.
According to the embodiment of the first aspect of the invention, the production equipment for the continuous fiber cloth three-dimensional reinforced wood-plastic composite material comprises a dipping tank, a first curing device, a tension guide roller and a co-extrusion mold which are sequentially arranged, wherein,
an impregnation cavity for containing thermosetting resin is arranged in the impregnation tank;
the first curing device is used for curing the fiber cloth impregnated with the thermosetting resin;
the co-extrusion die is provided with a first hole for the core layer wood-plastic composite material to pass through, a second hole for the fiber cloth to pass through and a third hole for the surface layer wood-plastic composite material to pass through, the first hole is arranged along the horizontal direction, and the axis of the second hole forms an included angle with the axis of the first hole;
the tension guide roller is used for adjusting the angle of the fiber cloth entering the second hole.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, the co-extrusion die is provided with the exhaust holes, and the exhaust holes are communicated with the second holes.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, a gas nozzle for spraying plasma gas flow is arranged on the front side of the impregnation tank.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, a flow nozzle for spraying a specific curing agent is arranged on the front side of the impregnation tank, and a second curing device is arranged between the flow nozzle and the impregnation tank.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, a leveling brush and a high-pressure air nozzle are sequentially arranged between the impregnation tank and the first curing device.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, the production equipment further comprises a thickness fixing roller arranged on the front side of the tension guide roller.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, the thickness fixing roller is arranged in the first curing device.
The production equipment for the continuous fiber cloth three-dimensional reinforced wood-plastic composite material further comprises four positioning rollers, wherein one positioning roller is arranged on the front side of the impregnation tank, the other positioning roller is arranged behind the impregnation tank, and the two positioning rollers are arranged in the impregnation tank.
According to the production equipment of the three-dimensional reinforced wood-plastic composite material of the continuous fiber cloth, the intersection of the first hole and the second hole is a first intersection, the intersection of the third hole and the second hole is a second intersection, and the first intersection and the second intersection are arranged along the moving direction of the core layer wood-plastic composite material.
According to the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material, the tension guide roller is arranged in front of the co-extrusion die through the guide rail sliding block.
The invention has the beneficial effects that:
1. by adopting a multi-layer co-extrusion assembly line production mode, the continuous thermosetting resin impregnated fiber cloth is perfectly fixed on the surface layer of the wood-plastic composite material, so that the surface hardness of the wood-plastic composite material, the heated dimensional stability and the compression resistance in the thickness direction are improved, the tensile property, the bending property, the impact resistance and the creep resistance in the horizontal plane direction of the wood-plastic composite material are enhanced, the three-dimensional enhancement of the wood-plastic composite material is realized, and the enhanced wood-plastic composite material can be used as a bearing material;
2. the production is carried out in a curing agent pre-embedding mode, so that the adhesive layer on the fiber cloth is cured from the inside, the defects of the cured adhesive layer are fewer, and the curing degree controllability of the adhesive layer is stronger;
3. the reinforced wood-plastic composite core wood-plastic composite melt and the surface layer wood-plastic composite melt can be combined together through meshes on the completely solidified fiber cloth, the wood-plastic composite forms a penetrating nail structure in all meshes of the fiber cloth, the position and the state of the fiber net in the wood-plastic composite are fixed, the interface problem is avoided, and the reinforcing effect of the fiber net is exerted as much as possible.
4. In the co-extrusion die, water vapor generated in the thermoplastic resin curing process is discharged from the vent holes, so that the impregnated fiber cloth is prevented from being cured in the wood-plastic matrix to generate water vapor, and the defect of foam holes is formed to influence the performance of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1, the production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material comprises a dipping tank 10, a first curing device 82, a tension guide roller 113 and a co-extrusion mold 14 which are sequentially arranged, wherein,
an impregnation cavity for containing thermosetting resin 9 is arranged in the impregnation tank 10;
the first curing device 82 is used for curing the fiber cloth impregnated with the thermosetting resin 9;
the co-extrusion die 14 is provided with a first hole 17 for the core layer wood-plastic composite material to pass through, a second hole 18 for the fiber cloth to pass through and a third hole 15 for the surface layer wood-plastic composite material to pass through, the first hole 17 is arranged along the horizontal direction, and the axis of the second hole 18 and the axis of the first hole 17 form an included angle;
the tension guide roller 113 is used to adjust the angle at which the fiber cloth enters the second hole 18.
In the co-extrusion process, the core wood-plastic composite material melt and the surface wood-plastic composite material melt can penetrate through meshes on the completely solidified fiber cloth to be combined together, so that the position and the form of the fiber cloth in the composite material are kept fixed, and the core wood-plastic composite material and the surface wood-plastic composite material penetrate through into a whole. The position and the shape of the fiber cloth in the composite material are fixed, and the reinforcing effect of the thermosetting epoxy resin impregnated fiber cloth can be fully exerted when the composite material is stressed.
The fiber cloth is one of carbon fiber cloth, basalt fiber cloth, glass fiber cloth, aramid fiber cloth, cotton fiber cloth, hemp fiber cloth, bamboo fiber cloth, silk fiber cloth, wool fiber cloth, rabbit hair fiber cloth, viscose fiber cloth, polyester fiber cloth, polyamide fiber cloth, acrylic fiber cloth, vinylon fiber cloth, polypropylene fiber cloth, polyvinyl chloride fiber cloth and spandex fiber cloth or fiber cloth woven by mixing different fibers. The fiber in the fiber cloth is a single fiber or a fiber bundle consisting of a plurality of fibers.
The thermosetting resin 9 is at least one of unsaturated polyester resin, epoxy resin, phenol resin, melamine formaldehyde resin, furan resin, polybutadiene resin, and silicone resin.
The first curing device 82 is an infrared drying oven.
Of course, the fiber cloth can be co-extruded on one side of the wood-plastic composite material, and can also be co-extruded on two sides, three sides or four sides of the wood-plastic composite material, and the impregnation and the conveying of the fiber cloth are set according to specific conditions. As shown in fig. 1, the fiber cloth is co-extruded on both sides of the wood-plastic composite material, and a dipping tank 10, a first curing device 82 and a set of tension guide rollers 113 are correspondingly arranged on the fiber cloth on one side.
In some embodiments, the co-extrusion die 14 is provided with a vent 16, the vent 16 being in communication with a second aperture 18. In the co-extrusion die 14, water vapor generated in the curing process of the thermoplastic resin is discharged from the exhaust holes 16, so that the impregnated fiber cloth is prevented from being cured in the wood-plastic matrix to generate water vapor, and the defect of foam pores is formed to influence the performance of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material.
In some embodiments, the front side of the dipping tank 10 is provided with a gas nozzle 6 for spraying a plasma gas flow. The fiber cloth is formed by twisting and weaving a plurality of closely arranged fibers into bundles, and in order to improve the permeability and the surface wettability of the fiber cloth, the fiber cloth is subjected to bundle loosening and etching treatment by using plasma airflow. The loose bundle treatment is to press the fiber bundle section at a short distance by using low-temperature and high-speed plasma airflow, and the local fiber bundle section has the loose bundle effect due to the compression and stretching growth; the etching treatment is to utilize ions, electrons, free radicals and the like in plasma to act on the surface of the fiber, roughen the surface of the fiber, increase the specific surface area and the surface activity of the fiber and improve the wetting property.
In some embodiments, a flow nozzle 7 for spraying a specific curing agent is disposed at the front side of the dipping tank 10, and a second curing device 81 is disposed between the flow nozzle 7 and the dipping tank 10. Specifically, the flow nozzle 7 and the second curing device 81 are disposed after the gas nozzle 6. The fiber bundle section after loosening and etching treatment is sprayed with a certain amount of curing agent through the flow nozzle 7 before the fiber bundle section is tensioned again, and then the small molecular substances remained on the surface of the fiber are removed by heating through the second curing device 81, so that the concentration of the curing agent on the fiber bundle is in a distribution form with a high center and a low surface layer. The second curing device 81 is preferably an infrared drying oven. Wherein the specific curing agent is at least one of unsaturated polyester resin curing agent, epoxy resin curing agent, phenolic resin curing agent, melamine formaldehyde resin curing agent, furan resin curing agent, polybutadiene resin curing agent and organic silicon resin curing agent; the flow valve is used for quantitative spraying of the curing agent.
In some embodiments, a leveling brush 12 and a high pressure air nozzle 13 are sequentially disposed between the dipping tank 10 and the first curing device 82. After the fiber cloth impregnated in the impregnation tank 10 is pre-cured, resin on the surface of the fiber cloth is uniformly distributed by using the leveling brush 12, the resin blocking meshes of the fiber cloth is removed by using the high-pressure air nozzle 13, and finally, partial curing of the impregnated fiber cloth is realized by controlling the heating temperature of the first curing device 82.
In some embodiments, a fixed thickness roller 112 is further included in front of the tension guide roller 113. The thickness-fixing rollers 112 are a pair of thickness-fixing drawing rollers, wherein the thickness between the two thickness-fixing drawing rollers is the thickness of the cured fiber cloth.
In some embodiments, the thickness-determining roller 112 is disposed in the first curing device 82 to provide a better understanding of the thickness of the cured fiber cloth. Specifically, the effect of the set thickness can be adjusted by adjusting the position of the set thickness roller 112 in the first curing device 82. The thickness of the cured fiber cloth is determined by the thickness between the two fixed-thickness drawing rolls and the position of the positioning roll in the first curing device 82. Specifically, when the thickness between two fixed-thickness drawing rollers is constant, that is, the distance between two fixed-thickness drawing rollers is relatively determined, due to the self-leveling motion of the uncured resin on the surface of the fiber cloth, the overall thickness of the cured fiber cloth is reduced when the position of the fixed-thickness drawing roller 112 moves forwards; when the position of the fixed-thickness roll 112 is moved backward, the entire thickness of the fiber cloth after curing is increased.
In some embodiments, four positioning rollers 111 are further included, wherein one positioning roller 111 is disposed in front of the immersion tank 10, one positioning roller 111 is disposed behind the immersion tank 10, and two positioning rollers 111 are disposed in the immersion tank 10. Four positioning rollers 111 realize fiber selvedge impregnation and tensioning. Four positioning rollers 111, a thickness-fixing roller 112 and a tension guide roller 113 are a driving roller system for conveying the fiber cloth. Wherein, the process of soaking and tensioning is realized by a fixed roller and a tension guide roller 113 together. The fixed thickness of the impregnated fiber cloth is determined by the transmission speed of a transmission roller system, the fixed thickness size of a fixed thickness traction roller and the pre-buried amount of a curing agent; the pre-curing degree is controlled to be about 50-80%. 50% -80% of cured thermosetting epoxy resin impregnated fiber cloth has good toughness, and the adhesive film has certain strength, so that the damage of the resin layer during the operation of the fiber cloth can be avoided, and the resin can be completely cured when being compounded with a wood-plastic melt at a later stage.
In some embodiments, the intersection of the first hole 17 and the second hole 18 is a first intersection, the intersection of the third hole 15 and the second hole 18 is a second intersection, and the first intersection and the second intersection are arranged along the moving direction of the core wood-plastic composite material. In the co-extrusion process, the fiber cloth is attached to the surface of the core layer wood-plastic composite material at a first intersection, the surface layer wood-plastic composite material is attached to the fiber cloth at a second intersection, the core layer wood-plastic composite material melt and the surface layer wood-plastic composite material melt can penetrate through meshes on the completely-cured fiber cloth to be combined together, so that the position and the form of the fiber cloth in the composite material are kept fixed, and the core layer wood-plastic composite material and the surface layer wood-plastic composite material are penetrated into a whole.
In some embodiments, the tension guide roller 113 is mounted in front of the co-extrusion die 14 by a rail block. The tension guide roller 113 is a pair of driving rollers which are vertical to the fiber cloth and the positions of which can be adjusted, the angle of the fiber cloth entering the mold is adjusted by adjusting the position of the tension guide roller 113, namely, the tension guide roller 113 can move up and down along the direction vertical to the fiber cloth by the guide rail sliding block.
The manufacturing process of the wood-plastic composite material based on the structure of the invention comprises the following steps:
s1, loosening and etching the carbon fiber cloth: the carbon fiber cloth is formed by twisting and weaving a plurality of closely arranged fibers into bundles, and in order to improve the permeability and the surface wettability of the carbon fiber cloth, the plasma airflow is used for loosening and etching the carbon fiber cloth. The loose bundle treatment is to press the carbon fiber bundle section at a short distance by using low-temperature and high-speed plasma airflow, and the local fiber bundle section has the loose bundle effect due to the compression and stretching growth; the etching treatment is to utilize ions, electrons, free radicals and the like in plasma to act on the surface of the carbon fiber, roughen the surface of the fiber, increase the specific surface area and the surface activity of the fiber and improve the wetting property;
s2, pre-buried curing agent: the pre-buried curing agent is carbon fiber bundle sections subjected to bundle loosening and etching treatment, 50 g/square meter of paratoluenesulfonic acid curing agent is sprayed through a flow nozzle 7 before the carbon fiber bundle sections are tensioned again, and then a second curing device 81 is used for heating to remove micromolecule substances remained on the surfaces of the fibers;
s3, impregnating with thermosetting phenolic resin: the thermosetting phenolic resin impregnation is to introduce the carbon fiber cloth subjected to the S2 into an impregnation tank 10 filled with thermosetting phenolic resin for impregnation treatment, and the carbon fiber cloth realizes the processes of impregnation and tensioning under the action of a driving roller system;
s4, pre-curing and thickness fixing of the impregnated carbon fiber cloth: after S3, the pre-curing of the impregnated carbon fiber cloth is to uniformly distribute the phenolic resin on the surface of the carbon fiber cloth by using the leveling brush 12, remove the resin blocking the meshes of the carbon fiber cloth by using the high-pressure air nozzles 13, and finally realize the partial curing of the impregnated carbon fiber cloth by controlling the heating temperature of the first curing device 82; adjusting the fixed thickness size of the fixed thickness roller 112 to be 3mm, and adjusting the position of the fixed thickness traction roller in the infrared curing box back and forth to enable the fixed thickness size error to be within +/-0.2 mm; the pre-curing degree is controlled at 60 percent;
s5, impregnating the carbon fiber cloth, performing later-stage curing and co-extruding the wood-plastic fiber cloth: the post-curing is completed in the second hole 18 of the co-extrusion die 14, the pre-cured carbon fiber cloth in the S4 is guided into the co-extrusion die 14 by the tension guide roller 113, the pre-cured carbon fiber cloth is heated in the second hole 18 of the co-extrusion die 14 to be completely cured, and the water vapor generated in the curing process is discharged from the exhaust hole 16 in the die block; the wood-plastic fiber cloth co-extrusion is to converge the straight sections of the upper and lower groups of the completely solidified thermosetting phenolic resin impregnated fiber cloth in the co-extrusion die 14 with the core layer wood-plastic melt, and then converge the upper and lower surface layer wood-plastic melts extruded by the co-extruder to co-extrude the continuous fiber cloth three-dimensional reinforced wood-plastic composite material. The high hardness, high modulus and excellent thermal stability of the cured thermosetting phenolic resin are combined with the high strength of the carbon fiber cloth to reinforce the wood-plastic composite material matrix, so that the surface hardness, the heated dimensional stability in the thickness direction and the compression resistance of the wood-plastic composite material are improved, and the tensile property, the bending property, the impact resistance and the creep resistance of the wood-plastic composite material in the horizontal plane direction are also enhanced.
After the step S5, cooling and shaping, traction and saw cutting are carried out, wherein the cooling and shaping adopt a wet external vacuum shaping mode, and a hot parison enters a shaping sleeve for cooling after coming out of the co-extrusion die 14, so that the resistance of the neck ring die to the melt is reduced as much as possible; the traction adopts soft module friction traction, so that the pressure loss and damage of the pressure of a tractor to the composite material are avoided; the saw cutting adopts laser cutting, and the damage of the cutting process to the fiber cloth is avoided. The resistance of the mouth mold to the surface of the melt can be reduced by cooling and shaping, and the smooth and flat extrusion of the fiber cloth in the wood-plastic matrix is ensured; the soft module friction traction increases the contact surface of the tractor and the composite material, increases the traction friction force and simultaneously reduces the damage of the tractor to the surface layer and the near surface layer of the composite material; by adopting laser cutting, the pulling damage of a cutter to the fiber cloth during sawing can be avoided, and the stability of the performance of the continuous fiber cloth three-dimensionally reinforced wood-plastic composite material is ensured.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. Production facility of three-dimensional reinforcing wood-plastic composite of continuous fiber cloth, its characterized in that: comprises a dipping tank, a first curing device, a tension guide roll and a co-extrusion die which are arranged in sequence,
an impregnation cavity for containing thermosetting resin is arranged in the impregnation tank;
the first curing device is used for curing the fiber cloth impregnated with the thermosetting resin;
the co-extrusion die is provided with a first hole for the core layer wood-plastic composite material to pass through, a second hole for the fiber cloth to pass through and a third hole for the surface layer wood-plastic composite material to pass through, the first hole is arranged along the horizontal direction, and the axis of the second hole forms an included angle with the axis of the first hole;
the tension guide roller is used for adjusting the angle of the fiber cloth entering the second hole.
2. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: the co-extrusion die is provided with an exhaust hole which is communicated with the second hole.
3. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: and a gas nozzle for spraying plasma gas flow is arranged on the front side of the dipping tank.
4. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1 or 3, wherein: the front side of the impregnation tank is provided with a flow nozzle for spraying a specific curing agent, and a second curing device is arranged between the flow nozzle and the impregnation tank.
5. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: and a leveling brush and a high-pressure air nozzle are sequentially arranged between the impregnation tank and the first curing device.
6. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: the device also comprises a fixed-thickness roller arranged on the front side of the tension guide roller.
7. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 6, characterized in that: the fixed thickness roller is arranged in the first curing device.
8. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: the device is characterized by further comprising four positioning rollers, wherein one positioning roller is arranged on the front side of the impregnation tank, one positioning roller is arranged behind the impregnation tank, and the two positioning rollers are arranged in the impregnation tank.
9. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: the intersection of first hole and second hole is first intersection, the intersection of third hole and second hole is the second intersection, and first intersection and second intersection set up along the direction that sandwich layer wood-plastic composite removed.
10. The production equipment of the continuous fiber cloth three-dimensional reinforced wood-plastic composite material as claimed in claim 1, characterized in that: and the tension guide roller is arranged in front of the co-extrusion die through a guide rail sliding block.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111421926A (en) * | 2020-03-11 | 2020-07-17 | 华南农业大学 | Continuous fiber cloth three-dimensional reinforced wood-plastic composite material and production method and equipment thereof |
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| CN103009736A (en) * | 2012-12-25 | 2013-04-03 | 无锡顺铉新材料有限公司 | Foaming wood-plastic composite for bottom plate of container and fabrication method of foaming wood-plastic composite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111421926A (en) * | 2020-03-11 | 2020-07-17 | 华南农业大学 | Continuous fiber cloth three-dimensional reinforced wood-plastic composite material and production method and equipment thereof |
| CN111421926B (en) * | 2020-03-11 | 2020-11-06 | 华南农业大学 | Continuous fiber cloth three-dimensional reinforced wood-plastic composite material and production method and equipment thereof |
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