CN210553138U

CN210553138U - Pultrusion profile structure

Info

Publication number: CN210553138U
Application number: CN201920724884.3U
Authority: CN
Inventors: 李长兴; 刘命权; 赖昭旭; 熊宥甯; 许家彰; 游本坚; 李金融; 王淑芬
Original assignee: Hocheng Corp
Current assignee: Hocheng Corp
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-05-19
Anticipated expiration: 2029-05-20

Abstract

The utility model provides a pultrusion profile structure, which is formed by pultrusion and hardening a plurality of resin-containing fibers, the hardened pultrusion profile structure comprises a strip-shaped fiber body, the outer surface of the fiber body is covered with a first coating layer, the first coating layer is fiber cloth with a plurality of first fibers and a plurality of second fibers, and the plurality of first fibers and the plurality of second fibers are mutually crossed; and at least one second coating layer covers the outer surface of the first coating layer, the second coating layer is composed of a plurality of unidirectional fibers and hardening resin, and the plurality of unidirectional fibers and the fiber body have the same extension direction in the length direction. Therefore, the finished product of the rod piece, the pipe fitting or the I-shaped piece has enough radial or transverse strength, and the appearance of the finished product is complete so as to ensure the quality of the product.

Description

Pultrusion profile structure

Technical Field

The present invention relates to a pultrusion structure, and more particularly to a pultrusion structure which can make the fiber composite material of rod, pipe or i-shaped member have sufficient radial or transverse strength and make the appearance thereof complete to ensure the quality.

Background

At present, a technique for forming a product housing or a vehicle housing by hardening a plurality of carbon fiber cloths overlapped with each other by heating and pressing has been used in the market to provide a sufficient strength and to reduce the weight and thickness of the product. For fiber composite materials such as pipe fittings or I-shaped solid strip products, pultrusion is mainly used.

The production process of pultrusion method is mainly characterized by that after a plurality of long fibers are soaked in resin tank, they are fed into mould, heated, hardened, formed and drawn out, and the formed pultruded material can be cut into the finished products with various lengths according to the required size. However, since the pultruded material is obtained by uniaxial and straight pultrusion, the tensile strength of the finished product such as a pipe or an i-shaped member is sufficient, but the strength thereof is significantly insufficient in the radial direction or the transverse direction perpendicular to the pultrusion direction only by the supporting force of the hardened resin, in other words, the axial strength of the pipe is sufficient, but the radial strength thereof is insufficient.

Therefore, in order to solve the problem of insufficient radial or transverse strength of the finished products such as the pipe or the i-shaped member, at present, when the pultrusion processing method is used for the finished products, at least one layer of fiber cloth with multi-axial fibers is coated on the outer periphery of the finished products.

SUMMERY OF THE UTILITY MODEL

However, the fiber cloth with multi-axial fibers mainly comprises a plurality of straight fibers and a plurality of transverse fibers which are mutually crossed, and during the pultrusion process of a rod, a pipe or an I-shaped part, because the transverse fibers and the pultrusion direction of the finished product are mutually crossed to generate a certain degree of resistance, yarn running is easy to occur, partial transverse fibers are squeezed together to form wrinkles, and the interval between partial transverse fibers is enlarged, so that the operation is easy to be stopped, effective radial or transverse supporting strength cannot be generated, and the appearance and the quality of the finished product are poor. In view of this, in order to provide a structure different from the prior art and improve the above-mentioned shortcomings, the utility model discloses a designer has long-lived experience and continuous research and development improvement, has carried out the utility model discloses a production.

In order to achieve the above object, the present invention provides an apparatus for producing a pultrusion molding structure, which is formed by a plurality of resin-containing fibers through pultrusion, wherein the pultrusion molding structure after the pultrusion comprises a fiber body, a first cladding layer and at least a second cladding layer. The fiber body is in a long strip shape, the pultrusion direction of the fiber body is defined as the long direction of the fiber body, and the direction which is crossed with the long direction is defined as the transverse direction of the fiber body; the first coating layer covers the outer surface of the fiber body, the first coating layer is a fiber cloth with a plurality of first fibers and a plurality of second fibers, and the plurality of first fibers and the plurality of second fibers are mutually crossed; and at least one second coating layer covers the outer surface of the first coating layer, the second coating layer is composed of a plurality of unidirectional fibers and hardening resin, and the plurality of unidirectional fibers and the fiber body have the same extension direction in the length direction.

In practice, the fiber body is formed by pultrusion and hardening a plurality of straight fibers containing resin, and the plurality of straight fibers and the long direction of the fiber body have the same extending direction.

In practice, the plurality of first fibers and the plurality of second fibers are perpendicular to each other.

The utility model has the advantages of, a pultrusion section structure is provided, rely on the surface at a fibre body to cover a first cladding layer, and cover an at least second cladding layer at the surface of first cladding layer, and the fibre direction of second cladding layer and the same structure of the long direction of fibre body, in order to solve current member, the class finished product of pipe fitting or I-shaped piece walks the yarn problem that forms among the pultrusion process, and can be via the produced guide and the guard action of an at least second cladding layer in pultrusion process, in order to eliminate and walk the yarn phenomenon, let the class off-the-shelf operation of pipe fitting or I-shaped piece smooth and easy, have sufficient radial or transverse strength, and let the finished appearance of finished product complete in order to ensure the quality of product.

In order to facilitate a deeper understanding of the present invention, it will be described in detail later.

Drawings

Fig. 1 is a partial perspective sectional view of a first embodiment of the present invention.

Fig. 2 is a cross-sectional view of a first embodiment of the present invention.

Fig. 3 is a cross-sectional view of a second embodiment of the present invention.

Description of reference numerals: a pultruded profile structure 1; a fiber body 2; straight carbon fibers 21; a top plate 22; a center pillar 23; a base plate 24; a first coating layer 3; a first fiber 31; a second fiber 32; a second coating layer 4, 4'; unidirectional fibers 41.

Detailed Description

The utility model discloses pultrusion profile structure 1 includes a fiber body, a first cladding layer and an at least second cladding layer, wherein, please refer to 1, 2 as shown in the figure, it is the utility model discloses pultrusion profile structure 1's first embodiment, including a fiber body 2, a first cladding layer 3 and two second cladding layers 4, 4 ', fiber body 2, first cladding layer 3 and two second cladding layers 4, 4 ' are multilayer structure, are simultaneously through a plurality of fibre bundles of preimpregnation resin on a pultrusion device, through pultrusion, pressurization, heating procedure so that the resin hardening is formed.

The fiber body 2 is composed of a plurality of straight carbon fibers 21, and the fiber body 2 can also be made of a single bundle of straight fibers such as glass fibers, Kevlar fibers (Kevlar), aramid fibers (Aramidfiber) or basalt fibers (basaltfiber) by pultrusion and hardening of the resin. The pultrusion direction of the fiber body 2 is defined as the longitudinal direction of the fiber body 2, and the plurality of straight carbon fibers 21 constituting the fiber body 2 have the same extension direction as the longitudinal direction of the fiber body 2. With the hardened appearance, the fiber body 2 is a long strip-shaped member with an i-shaped cross section, which comprises a top plate 22, a middle column 23 and a bottom plate 24, and the utility model discloses during implementation, the long strip-shaped finished product that also can be the type of pipe fitting.

The first coating layer 3 covers and is combined on the outer surface of the i-shaped fiber body 2, the first coating layer 3 comprises at least one layer of fiber cloth, any fiber cloth comprises a plurality of first fibers 31 and a plurality of second fibers 32, the plurality of first fibers 31 and the plurality of second fibers 32 are woven in a mutually perpendicular and crossed mode, in the implementation process, the plurality of first fibers 31 and the plurality of second fibers 32 can also be formed by stacking and buckling in a mutually perpendicular and crossed mode, and the crossed angle of the plurality of first fibers 31 and the plurality of second fibers 32 is 15-165 degrees. In addition, the first coating layer 3 can also be 2, 3, 4 axial fiber cloth or needle punched fiber cloth without interweaving fibers.

The two second coating layers 4, 4 'cover the outer surface of the first coating layer 3 on both sides of the center pillar 22, and the two second coating layers 4, 4' are respectively composed of a plurality of unidirectional fibers 41 and a hardening resin, and the plurality of unidirectional fibers 41 have the same extending direction as the fiber body 2 in the longitudinal direction. Thus, in the pultrusion process, since the two second cladding layers 4, 4 'have the same pultrusion direction as the fiber body 2, the two second cladding layers 4, 4' can generate a guiding effect to protect the integrity of the first cladding layer 3.

Please refer to fig. 3, which is a second embodiment of the pultrusion profile structure 1 of the present invention, and the difference between the first embodiment is: the second coating layer 4 completely covers the outer surface of the first coating layer 3, and also provides a guiding function to protect the integrity of the first coating layer 3. In practice, the second coating layer 4 may be one, which is wider but not completely covered on the outer surface of the first coating layer 3, or two or more second coating layers 4 with intervals are provided, which can protect the integrity of the first coating layer 3 and prevent the first coating layer 3 from generating a yarn running phenomenon when aiming at different elongated finished products of pipe types.

Therefore, the utility model has the advantages of it is following:

1. the utility model discloses cover first cladding layer at the surface of fibre body, the surface of first cladding layer covers the second cladding layer, and the fibre direction of second cladding layer is the same with the long direction of pultrusion fibre body, therefore, can be in the pultrusion in-process, produce the guide effect via the second cladding layer, in order to eliminate the member, the class finished product of pipe fitting or I-shaped piece is at the pultrusion in-process, because the yarn phenomenon of walking that transverse resistance formed, and can let the operation of production smooth and easy, and let the finished product outward appearance complete in order to ensure the quality of product, and then improve the sales volume of product.

2. The utility model discloses at the first cladding layer of surface covering of fibre body, the fibre cloth of first cladding layer includes a plurality of first fibre and a plurality of second fibre of intercrossing, the surface covering second cladding layer of first cladding layer, consequently, can be in pultrusion in-process, with the second cladding layer as outmost, and produce the effect of protecting first cladding layer via the second cladding layer, let a plurality of first fibre and a plurality of second fibre can both keep complete cross state, with production sufficient radial or transverse strength.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A pultrusion profile structure is formed by pultrusion and hardening of a plurality of resin-containing fibers, and is characterized in that the pultrusion profile structure after hardening comprises:

the fiber body is in a long strip shape, and the pultrusion direction of the fiber body is defined as the long direction of the fiber body;

the first coating layer covers the outer surface of the fiber body, the first coating layer is fiber cloth with a plurality of first fibers and a plurality of second fibers, and the plurality of first fibers and the plurality of second fibers are mutually crossed; and

at least one second coating layer covering the outer surface of the first coating layer, the second coating layer is composed of a plurality of unidirectional fibers and hardening resin, and the plurality of unidirectional fibers and the fiber body have the same extension direction in the length direction.

2. The pultruded profile structure according to claim 1, wherein the fiber body is obtained by pultrusion hardening a plurality of straight fibers containing resin, the plurality of straight fibers having the same extension direction as the longitudinal direction of the fiber body.

3. The pultruded profile structure according to claim 1, wherein the plurality of first fibers and the plurality of second fibers are perpendicularly intersecting.