CN210132790U

CN210132790U - Fiber reinforced composite material pultrusion device

Info

Publication number: CN210132790U
Application number: CN201920942255.8U
Authority: CN
Inventors: 邓军发
Original assignee: Nanjing Ju Fa New Material Co Ltd
Current assignee: Nanjing Ju Fa New Material Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-10
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a fiber reinforced composite pultrusion device belongs to combined material processing equipment. The device comprises a closed glue injection box arranged on one side of a yarn guide plate moving along a reinforced material, a glue injection system connected with the glue injection box in a closed mode, a mold arranged on one side of the glue injection box moving along the reinforced material, and a lubricant injection system connected with the mold in a closed mode. The utility model discloses a solidification zone after the resin gel point increases the lubrication groove and pours into emollient on pultrusion metal mold, utilizes emollient to reduce the frictional resistance of goods and mould inner wall when the mould removes, and then the reduction pultrusion traction force that is showing. The utility model discloses especially, be suitable for the profile shapes that have complicated structure and need great traction force.

Description

Fiber reinforced composite material pultrusion device

Technical Field

The utility model belongs to combined material processing equipment, especially a fiber reinforced composite material pultrusion device.

Background

The pultrusion process is to continuously produce the glass fiber reinforced plastic section bar with unlimited length by using the continuous glass fiber bundle, belt or cloth and other reinforcing materials which are impregnated with the resin glue solution and through the molding and curing of an extrusion die under the action of traction force. The process is most suitable for producing various section shapes of glass fiber reinforced plastic profiles, such as bars, pipes, solid profiles (I-shaped, groove-shaped and square profiles), hollow profiles (door and window profiles and blades) and the like. The matrix resin used for pultrusion is mainly thermosetting resin such as unsaturated resin, vinyl resin, phenol resin, epoxy resin, polyurethane, and the like.

The forming efficiency of the pultrusion process depends mainly on the curing speed of the resin and the magnitude of the traction force during pultrusion. The faster the resin cure speed, the lower the traction force, the higher the pultrusion speed that can be achieved, and vice versa. The high-activity resin and the catalyst can be selected, the temperature of the die is increased, and the like, so that the curing speed of the resin in the die is increased, and the pultrusion efficiency is improved; in order to reduce the traction force in the pultrusion process, an internal release agent is usually added into resin, and during the heating and curing process of the resin, the internal release agent migrates to the surface of the product to reduce the frictional resistance between the product and a metal mold, so that the product can normally separate from the mold under the traction of pultrusion equipment to realize continuous production.

As shown in fig. 2, the conventional pultrusion process device mainly comprises the following six parts: reinforcing material conveying system, gumming system, preforming system, mould, draw gear, cutting device. If the cross-sectional size of the fabricated article is increased or the shape becomes complicated, the frictional resistance between the article and the metal mold is significantly increased and the pultrusion speed is significantly reduced. Because the addition of excessive release agent does not improve the resistance, and the excessive release agent cannot completely migrate to the surface of the product and remains in the product as a filler, thereby reducing the mechanical strength of the product, equipment with higher tensile force is required to meet the requirement of pultrusion speed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the pultrusion device for the fiber reinforced composite material is provided to solve the problem that large traction force is needed in the production of the composite material with large section size and complex shape.

The technical scheme is as follows: a fiber-reinforced composite pultrusion apparatus comprising: the device comprises a yarn feeding assembly, a curing and forming assembly, a traction cutting assembly and a pultrusion equipment platform.

The yarn feeding assembly comprises a creel, a bundling frame and a yarn guide plate, wherein the creel is composed of a plurality of winding drums wound with reinforcing materials, the bundling frame is arranged on one side, moving along the reinforcing materials, of the creel and is composed of a plurality of guide wheels, and the yarn guide plate is arranged on one side, moving along the reinforcing materials, of the bundling frame.

The solidification molding assembly comprises a closed glue injection box arranged on one side of the yarn guide plate moving along the reinforced material, a glue injection system connected with the glue injection box in a closed mode, a mold arranged on one side of the glue injection box moving along the reinforced material, and a lubricant injection system connected with the mold in a closed mode.

And the traction cutting assembly comprises a traction device arranged on one side of the die moving along the reinforcing material, and a cutting device arranged on one side of the die moving along the reinforcing material.

And the curing molding assembly and the traction cutting assembly are fixedly installed on the pultrusion equipment platform through profiles.

The reinforced material on the creel sequentially passes through the creel, the yarn guide plate, the glue injection box, the die, the traction device and the cutting device.

In a further embodiment, the glue injection system comprises: the device comprises a material tank A, a material tank B, two peristaltic pumps and a flowmeter which are respectively connected with the lower parts of the material tank A and the material tank B, and modules such as a static mixer and the like for mixing the material A and the material B.

In a further embodiment, the mold is designed into different shapes according to the shape of a specific finished product, the mold is a segmented heating mold, a preheating zone, a gel zone and a curing zone are sequentially arranged along the movement direction of the reinforcing material, and the three zones are separated by adopting a heat insulating material.

In a further embodiment, between the gel zone and the solidification zone of the mould is a detachment point, at which a lubrication groove is provided, the cross-sectional shape of which is the same or similar to the external shape of the mould cavity, leaving a predetermined width and depth between the inner surfaces of the mould.

In a further embodiment, the lubricant injection system comprises: the lubricant injection device comprises a lubricant tank, a lubricant injection pipe connecting the lubricant tank and the mold, and a peristaltic pump and a flow meter which are arranged on the lubricant injection pipe.

In a further embodiment, the lubricant in the lubricant tank may specifically be: liquid or fluid with lubricating effect such as liquid mold release agent, mineral lubricating oil, synthetic lubricating oil, animal and vegetable oil, etc.

Has the advantages that: the utility model relates to a fiber reinforced composite pultrusion device compares with prior art and has following advantage:

1. injecting resin combination components into a closed glue injection box in different proportions by adopting a closed glue injection system, and then sequentially passing a reinforcing material into the glue injection box; by adopting the design, on one hand, the influence of the external environment of the resin, especially the moisture in the air, can be avoided; on the other hand, the components of the resin are accurately controlled through the glue injection system, the combination degree between the reinforcing material and the resin is improved, and the quality and the stability of a finished product are effectively guaranteed.

2. A segmented heating mould is adopted, and a preheating zone, a gel zone and a curing zone with different heating temperatures and pressures are designed according to the physical characteristics of the resin and the reaction characteristics of the reinforcing material and the resin; when the resin fiber mixed material firstly enters a preheating zone, the viscosity of the resin is reduced, the fluidity of the resin is improved, and the resin is further soaked in the reinforced material; then the material enters a gel area, the resin starts to react, and the resin is changed into a gel state from a viscous liquid; and finally, the material enters a curing area to be fully cured, so that the curing speed of the resin is improved from the processing technology, and the forming efficiency of the pultrusion technology in the composite material is effectively improved.

3. Design the lubrication groove, at a lubrication groove of mould gel district end position design, inject emollient toward lubrication inslot, the in-process that the goods in process of advancing is drawn, and emollient adheres to the surface of the products in process to show the frictional resistance who reduces between goods and the mould, solved the problem that needs great traction force in the combined material that production cross sectional dimension is great, the shape is complicated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a prior art structure.

Fig. 3 is a schematic structural view of a conventional mold in the prior art.

Fig. 4 is a schematic structural diagram of the lubricating groove and the die of the present invention.

The reference signs are: the production line comprises a creel 1, a bundling frame 2, a yarn guide plate 3, a glue injection box 4, a mold 5, a traction device 6, a cutting device 7, a product 8, a pultrusion equipment platform 9, a glue injection system 10, a lubricant injection system 11, a preheating zone 501, a gel zone 502, a separation point 503, a curing zone 504, a lubricating tank 505, an A charging bucket 1001, a B charging bucket 1002, a flow meter 1003, a static mixer 1004, a resin injection pipe 1005, a lubricant tank 1101 and a lubricant injection pipe 1102.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a pultrusion device for fiber reinforced composite material comprises: the device comprises four parts, namely a yarn feeding assembly, a curing and forming assembly, a traction cutting assembly and a pultrusion equipment platform 9.

The yarn feeding assembly comprises: creel 1, creel 2 and thread guide plate 3. Wherein, creel 1 comprises a plurality of winding drums that have the reinforcing material of winding, creel 2 sets up creel 1 is along one side of reinforcing material motion, by a plurality of leading wheel constitution, and the setting of yarn guide plate 3 is in creel 2 is along one side of reinforcing material motion, assembles into one through creel 2 and yarn guide plate 3 single yarn.

The curing molding assembly comprises: the glue injection box 4, the glue injection system 10, the mould 5 and the lubricant injection system 11. Seal the gluey box 4 setting of notes yarn board 3 is along reinforcing material motion one side, injecting glue system 10 with it is airtight continuous to annotate gluey box 4, wherein, injecting glue system 10 includes: the device comprises an A material tank 1001, a B material tank 1002, two peristaltic pumps and flow meters 1003 respectively connected with the lower parts of the A material tank 1001 and the B material tank 1002, a static mixer 1004 module used for mixing the A material and the B material, and a resin injection pipe 1005 connected with the static mixer 1004. Wherein the glue injection frequency is 0.2-2 Hz, and the glue injection amount is 50-200 g/time. The structure adopts a closed glue injection system 10, resin combined components are injected onto the closed glue injection box 4 through the glue injection system 10 according to different proportions, and then the reinforcing materials are sequentially injected into the glue injection box 4; by adopting the design, on one hand, the influence of the external environment of the resin, especially the moisture in the air, can be avoided; on the other hand, the components of the resin are accurately controlled through the glue injection system 10, so that the combination degree between the reinforcing material and the resin is improved, and the quality and the stability of a finished product are effectively guaranteed. The mold 5 is arranged on one side of the glue injection box 4 moving along the reinforcing material, wherein as shown in fig. 3-4, the mold cavity of the mold 5 is designed into different shapes according to the shape of a specific finished product, the mold 5 is heated in a segmented manner, the mold is sequentially provided with a preheating zone 501, a gel zone 502 and a curing zone 504 along the direction of the reinforcing material moving direction, a separation point 503 is arranged between the gel zone 502 and the curing zone 504 of the mold 5, and the three zones are separated by a heat insulating material. A preheating zone 501, a gel zone 502 and a curing zone 504 designed to have different heating temperatures and pressures according to physical properties of the resin and reaction properties of the reinforcing material and the resin; when the resin fiber mixed material firstly enters the preheating zone 501, the viscosity of the resin is reduced, the fluidity of the resin is improved, and the resin is further soaked in the reinforcing material; the material then enters the gel zone 502, the resin begins to react, the resin changes from a viscous liquid to a gel state; finally, the material enters the curing area 504 to fully cure the material, so that the curing speed of the resin is improved in the processing technology, and the forming efficiency of the pultrusion technology in the composite material is effectively improved. A lubricant injection system 11 is hermetically connected to said mould 5. A lubrication groove 505 is provided at the release point 503, and the cross-sectional shape of the lubrication groove 505 is the same as or similar to the shape of the cavity, and a predetermined width and depth are left between the inner surfaces of the mold 5. The lubricant injection system 11 includes: a lubricant tank 1101, a lubricant injection pipe 1102 connecting the lubricant tank 1101 and the die 5, and a peristaltic pump and a flow meter provided on the lubricant injection pipe 1102. Lubricant can enter the groove and be in sufficient contact with and lubricate the article 8, and a lubrication groove 505 is provided in the position of the solidification zone 504 after the release point 503 of the mold 5, so that the lubricant adheres to the surface of the article 8 during the traction advance of the article 8, thereby significantly reducing the frictional resistance between the article 8 and the mold 5.

The lubricant in the lubricant tank 1101 may be specifically: liquid or fluid with lubricating effect such as liquid mold release agent, mineral lubricating oil, synthetic lubricating oil, animal and vegetable oil, etc. Lubricants which may be used in the practice of the invention are the release agents commonly used in pultrusion processes, comprising long chain carboxylic acids, particularly fatty acids such as stearic acid; amines of long chain carboxylic acids, for example, stearylimine; a fatty acid ester; metal salts of long chain carboxylic acids, such as zinc stearate; and a siloxane; and a fluoroalcohol phosphate; and common industrial lubricants, including mineral lubricating oils, synthetic lubricating oils, liquid lubricants such as animal and vegetable oils and water-based liquids, and semi-solid lubricants formulated with a base lubricant and a thickener in a certain ratio. Among them, a mold release agent for pultrusion and a liquid lubricant are preferable.

The pulling and cutting assembly comprises a pulling device 6 and a cutting device 7. A traction device 6 is arranged at one side of the mould 5 moving along the reinforcing material and is used for providing traction force; the cutting device 7 is provided with a traction device 6 along one side of the reinforcing material movement to compound the material.

The curing molding assembly and the traction cutting assembly are fixedly arranged on the pultrusion equipment platform 9 through profiles. The pultrusion equipment platform 9 plays a role in fixing and supporting.

In order to facilitate understanding of the technical scheme of the pultrusion device for the fiber reinforced composite material, the working principle of the pultrusion device is briefly explained as follows: the reinforced material on the creel 1 sequentially passes through the creel 2, the yarn guide plate 3, the glue injection box 4, the die 5, the traction device 6 and the cutting device 7. The fiber materials placed on the creel 1 pass through the yarn guide plate 3 and then enter the glue injection box 4, the resin is metered and mixed through the glue injection system 10 and then is injected into the glue injection box 4, the fiber materials are soaked by the resin in the glue injection box 4 and then enter the mold 5, the fiber materials are heated and solidified and then are pulled out of the mold 5 from the other end of the mold 5 through the traction mechanism, and the fiber materials are cut by the cutting device 7 according to the set length to obtain a product 8.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. A pultrusion device for fiber reinforced composite materials is characterized by comprising:

the yarn feeding assembly comprises a creel, a bundling frame and a yarn guide plate, wherein the creel is composed of a plurality of winding drums wound with reinforcing materials, the bundling frame is arranged on one side, moving along the reinforcing materials, of the creel and is composed of a plurality of guide wheels, and the yarn guide plate is arranged on one side, moving along the reinforcing materials, of the bundling frame;

the curing molding assembly comprises a closed glue injection box, a glue injection system, a mold and a lubricant injection system, wherein the closed glue injection box is arranged on one side, moving along the reinforced material, of the yarn guide plate, the glue injection system is hermetically connected with the glue injection box, the mold is arranged on one side, moving along the reinforced material, of the glue injection box, and the lubricant injection system is hermetically connected with the mold;

the traction cutting assembly comprises a traction device arranged on one side of the die moving along the reinforcing material and a cutting device arranged on one side of the die moving along the reinforcing material;

the curing molding assembly and the traction cutting assembly are fixedly arranged on the pultrusion equipment platform through profiles;

the reinforced material on the creel sequentially passes through the bundling frame, the yarn guide plate, the glue injection box, the die, the traction device and the cutting device.

2. The fiber-reinforced composite pultrusion apparatus as claimed in claim 1, wherein the glue injection system includes: the device comprises a material tank A, a material tank B, two peristaltic pumps and a flowmeter which are respectively connected with the lower parts of the material tank A and the material tank B, and modules such as a static mixer and the like for mixing the material A and the material B.

3. The pultrusion device for the fiber reinforced composite material according to claim 1, characterized in that the molds are formed into different shapes according to specific finished products, the molds are segmented heating molds, a preheating zone, a gel zone and a curing zone are sequentially arranged along the moving direction of the reinforced material, and the three zones are separated by a heat insulating material.

4. The fiber-reinforced composite pultrusion apparatus as claimed in claim 3, wherein a break-off point is provided between the gel zone and the curing zone of the die, and a lubrication groove is provided at the break-off point, the lubrication groove having a cross-sectional shape that is the same as or similar to the outer shape of the die cavity and having a predetermined width and depth left between the inner surfaces of the die.

5. The fiber-reinforced composite pultrusion apparatus of claim 1, wherein the lubricant injection system includes: the lubricant injection device comprises a lubricant tank, a lubricant injection pipe connecting the lubricant tank and the mold, and a peristaltic pump and a flow meter which are arranged on the lubricant injection pipe.

6. The pultrusion device for fiber-reinforced composite materials as claimed in claim 5, characterized in that the lubricant in the lubricant tank may be in particular: liquid release agent, mineral lubricating oil, synthetic lubricating oil, animal and vegetable oil, and liquid or fluid with lubricating effect.