阅读说明：本技术 一种外圆内方重组竹构件及制备方法 (Cylindrical and inner square recombined bamboo component and preparation method thereof ) 是由 李海涛 苏靖文 李淑恒 刘利清 于 2020-04-29 设计创作，主要内容包括：本发明涉及一种外圆内方重组竹构件及制备方法,该组合构件的主要特点是,构件形状特点为外部呈圆形,内部中心为边长不小于50mm的四边形孔,构件的制备过程为,首先将经过系列处理的竹束放进专用模具内,通过模压一次压制成型外圆内凹的半圆重组竹构件,进行适当地裁边处理后,将两个半圆重组竹构件胶合在一起形成圆柱形构件,然后再在圆柱形构件外侧裹缠厚度不小于10mm的竹皮层,最后形成外圆内方重组竹构件。本发明开发了一种新型重组竹构件及关键制备方法,丰富了重组竹结构产品的类型,拓展了新的利用途径。(The invention relates to a cylindrical and inward-square recombined bamboo component and a preparation method thereof, and the combined component is mainly characterized in that the component is in a shape that the outer part is circular, the inner center is a quadrilateral hole with the side length not less than 50mm, and the component is prepared by the steps of firstly putting bamboo bundles subjected to series treatment into a special die, carrying out one-step compression molding on a semicircular recombined bamboo component with the concave outer circle through die pressing, carrying out proper edge cutting treatment, gluing the two semicircular recombined bamboo components together to form a cylindrical component, then wrapping a bamboo skin layer with the thickness not less than 10mm on the outer side of the cylindrical component, and finally forming the cylindrical and inward-square recombined bamboo component. The invention develops a novel recombined bamboo component and a key preparation method, enriches the types of recombined bamboo structure products and develops a new utilization approach.)

1. The invention relates to a cylindrical and inward square recombined bamboo component and a preparation method thereof, and the recombined bamboo component is mainly characterized in that the component consists of two cylindrical and inward pointed concave semicircular recombined bamboo components (1), a bamboo skin layer (2) and a quadrilateral hole (3), wherein the cylindrical and inward pointed concave semicircular recombined bamboo components (1) are prepared by a die device (4), and the die device (4) consists of a triangular pressure head cover plate (4-1), a pin bolt (4-2), a die (4-3) with a semicircular groove and a pressure effector (4-4); the triangular pressure head cover plate (4-1) consists of a triangular pressure head (4-1-2), a round hole (4-1-1) and a wide flat plate (4-1-3), and the pressure head angle (4-1-4) of the triangular pressure head (4-1-2) is not less than 30 degrees; the die (4-3) with the semicircular groove consists of the semicircular groove (4-3-1) and a groove plate (4-3-2), the pin bolts (4-2) are distributed on the groove plates (4-3-2) at two sides at a certain interval, and the pin bolts (4-2) can be positioned and can also play a role in connecting the triangular pressure head cover plate (4-1) with the die (4-3) with the semicircular groove; the pin bolts (4-2) can be correspondingly inserted into the round holes (4-1-1), and the distance between the round holes is not less than 60 mm; when preparing the semicircle recombined bamboo component (1) with the sharp concave outside and the sharp concave inside, firstly, bamboo bundles after series treatment are placed into a mould (4-3) with a semicircle groove after gum dipping and gum draining, a triangular pressure head cover plate (4-1) is covered, a pin bolt (4-2) passes through the corresponding round hole (4-1-1), then, a pressure is applied to the triangular pressure head cover plate (4-1) along the length direction of the mould by a pressure action device (4-4), and a bolt on the pin bolt (4-2) is screwed tightlyAfter the mixture is placed for not less than 24 hours, the mold is removed, and the shape of the mixture is obtainedThe edge of the outer-circle inner-tip concave semicircle recombined bamboo member (1) is properly cut, the two outer-circle inner-tip concave semicircle recombined bamboo members (1) are glued together to form a cylindrical member with an inner center being a quadrilateral hole (3) with the side length not less than 50mm, and finally, a bamboo skin layer (2) with the thickness not less than 10mm is wrapped on the outer side of the cylindrical member.

2. The cylindrical and inward square recombined bamboo component and the preparation method according to claim 1 are characterized in that: reinforcing materials such as FRP (fiber reinforced Plastic) ribs or steel bars and the like can be embedded in the outer-circle inner-sharp concave semi-circular recombined bamboo component (1), the outer-circle inner-sharp concave semi-circular recombined bamboo component (1) can be replaced by a wood component formed by impregnating and pressing wood strips, and can also be a straw component formed by impregnating and pressing straws (one or more of wheat straws, rice straws, corn straws, sorghum straws, bean straws, pepper straws, rape straws, flax straws, reed straws, cotton straws and/or waste wood and scraps thereof).

3. The cylindrical and inward square recombined bamboo component and the preparation method according to claim 1 are characterized in that: the bamboo skin layer (2) can be replaced by one or more fiber winding layers of aramid fiber layers, carbon fibers, basalt fibers, glass fibers, high-strength plant fibers (such as bamboo fiber layers, hemp fiber layers and the like) and the like.

4. The cylindrical and inward square recombined bamboo component and the preparation method according to claim 1 are characterized in that: the quadrilateral holes (3) can be hollow, and can also be mixed and filled by one or more materials of bamboo, wood, wheat straw, rice straw, corn stalk, sorghum stalk, bean stalk, pepper stalk, rape stalk, flax stalk, reed stalk, cotton stalk and/or waste wood and scraps thereof, concrete, soil, mortar, gypsum, lime, various construction waste crushed materials and the like.

Technical Field

The invention relates to an outer circle and inner square recombined bamboo component and a preparation method thereof, belonging to the technical field of civil engineering.

Background

An important subject of the current architectural community is the problem of building and ecological environment, concepts such as 'green building' and 'ecological building' come into play, and under the large environment of industrialization, urbanization and rapid development of new rural construction, our country puts forward a call for deeply promoting building energy conservation and accelerating development of green buildings, so that the industrialization of modern bamboo-wood structure green buildings becomes a great demand of national sustainable development.

Bamboo is produced in China, the quantity and quality of bamboo are at the top of the world, the bamboo can be regenerated and degraded, the bamboo can be made into timber in 3-5 years, the tensile strength of the bamboo is about 2 times of that of the timber, the compressive strength of the bamboo is about 1.5 times of that of the timber, the specific strength of the bamboo is higher than that of common timber, structural steel, aluminum alloy, concrete and the like, the bamboo has better elasticity and toughness and strong deformability, and the house is built by replacing concrete, steel or clay bricks and the like with the bamboo and a composite material formed by the bamboo and other materials, so that the house accords with the national green development concept.

With the acceleration of the progress of national transformation economic development mode, the development of low-carbon economy is taken as the rapid promotion of the country, the protection policy of natural forest and artificial forest culture is increasingly strict, the contradiction between the supply quantity of wood and the demand quantity of structural members is increasingly prominent, the development space of the structural members taking wood as raw material is greatly compressed, and the promotion of the biomass material members provides a direction for effectively protecting forest resources.

The rapid development of national economy brings a great deal of solid waste, and the development and utilization of the solid waste are one direction of future development.

With the rapid development of the wood member industry in China, the insufficient supply of wood raw materials becomes a main factor restricting the development of the wood members in China. The seeking of the alternative material of the wood becomes the problem which needs to be solved urgently in the development of the wood components in China. The application of the biomass material combined member with the characteristics of high quality, low price, environmental protection, low pollution, recycling and the like to replace wood raw materials inevitably has wide market space.

Disclosure of Invention

The invention aims to provide a recombined bamboo component with an outer circle and an inner square and a preparation method thereof aiming at the defects of the prior art.

The technical scheme of the invention is as follows:

the invention relates to an outer circle and inner square recombined bamboo component and a preparation method thereof, and the component is mainly characterized in that the component consists of two outer circle and inner sharp concave semicircle recombined bamboo components (1), a bamboo skin layer (2) and a quadrilateral hole (3), wherein the outer circle and inner sharp concave semicircle recombined bamboo components (1) are prepared by a mould device (4), and the mould device (4) consists of a triangular pressure head cover plate (4-1), a pin bolt (4-2), a mould (4-3) with a semicircular groove and a pressure actuator (4-4); the triangular pressure head cover plate (4-1) consists of a triangular pressure head (4-1-2), a round hole (4-1-1) and a wide flat plate (4-1-3), and the pressure head angle (4-1-4) of the triangular pressure head (4-1-2) is not less than 30 degrees; the die (4-3) with the semicircular groove consists of the semicircular groove (4-3-1) and a groove plate (4-3-2), the pin bolts (4-2) are distributed on the groove plates (4-3-2) at two sides at a certain interval, and the pin bolts (4-2) can be positioned and can also play a role in connecting the triangular pressure head cover plate (4-1) with the die (4-3) with the semicircular groove; the pin bolts (4-2) can be correspondingly inserted into the round holes (4-1-1), and the distance between the round holes is not less than 60 mm; when preparing the semicircular recombined bamboo member (1) with the sharp concave inside the excircle, firstly, bamboo bundles after series treatment are placed into a mould (4-3) with a semicircular groove after gum dipping and gum draining, a triangular pressure head cover plate (4-1) is covered, a pin bolt (4-2) passes through a corresponding round hole (4-1-1), then, a pressure action device (4-4) applies pressure to the triangular pressure head cover plate (4-1) along the length direction of the mould, a bolt on the pin bolt (4-2) is screwed tightly, and after the bolt is placed for not less than 24 hours, the mould is removed, so that the recombined bamboo member (1) with the shape of being not less than 24 hours can be obtainedThe edge of the outer-circle inner-tip concave semicircle recombined bamboo member (1) is properly cut, the two outer-circle inner-tip concave semicircle recombined bamboo members (1) are glued together to form a cylindrical member with an inner center being a quadrilateral hole (3) with the side length not less than 50mm, and finally, a bamboo skin layer (2) with the thickness not less than 10mm is wrapped on the outer side of the cylindrical member.

Reinforcing materials such as FRP (fiber reinforced Plastic) ribs or steel bars and the like can be embedded in the outer-circle inner-sharp concave semi-circular recombined bamboo component (1), the outer-circle inner-sharp concave semi-circular recombined bamboo component (1) can be replaced by a wood component formed by impregnating and pressing wood strips, and can also be a straw component formed by impregnating and pressing straws (one or more of wheat straws, rice straws, corn straws, sorghum straws, bean straws, pepper straws, rape straws, flax straws, reed straws, cotton straws and/or waste wood and scraps thereof).

The bamboo skin layer (2) can be replaced by one or more fiber winding layers of aramid fiber layers, carbon fibers, basalt fibers, glass fibers, high-strength plant fibers (such as bamboo fiber layers, hemp fiber layers and the like) and the like.

The quadrilateral holes (3) can be hollow, and can also be mixed and filled by one or more materials of bamboo, wood, wheat straw, rice straw, corn stalk, sorghum stalk, bean stalk, pepper stalk, rape stalk, flax stalk, reed stalk, cotton stalk and/or waste wood and scraps thereof, concrete, soil, mortar, gypsum, lime, various construction waste crushed materials and the like.

Drawings

FIG. 1 is a schematic view of an embodiment of a cylindrical and square recombined bamboo member.

In the figure: 1 is a recombined bamboo component with an excircle and an inner tip concave semicircle; 2 is a bamboo skin layer; 3 is a quadrilateral hole; 4 is a mould device; 4-1 is a triangular pressure head cover plate; 4-1-1 is a round hole; 4-1-2 is a triangular pressure head; 4-1-3 is a wide plate; 4-1-4 is the angle of the pressure head; 4-2 is a pin bolt; 4-3 is a mould with a semicircular groove; 4-3-1 is a semicircular groove; 4-3-2 is a groove plate; 4-4 is a pressure applicator.

Detailed Description

For further explanation of the invention, the following detailed description of the invention is provided with reference to the accompanying drawings, which are not to be construed as limiting the scope of the invention.

Compared with the attached drawings, the invention relates to an excircle and interior square recombined bamboo component and a preparation method thereof, the component consists of two excircle and interior sharp concave semicircle recombined bamboo components (1), a bamboo skin layer (2) and a quadrilateral hole (3), the excircle and interior sharp concave semicircle recombined bamboo component (1) is prepared by a mould device (4), and the mould device (4) is prepared by a triangular pressure head cover plate (4-1), a pin bolt (4-2), a mould (4-3) with a semicircular groove and pressureA user device (4-4); the triangular pressure head cover plate (4-1) consists of a triangular pressure head (4-1-2), a round hole (4-1-1) and a wide flat plate (4-1-3), and the pressure head angle (4-1-4) of the triangular pressure head (4-1-2) is not less than 30 degrees; the die (4-3) with the semicircular groove consists of the semicircular groove (4-3-1) and a groove plate (4-3-2), the pin bolts (4-2) are distributed on the groove plates (4-3-2) at two sides at a certain interval, and the pin bolts (4-2) can be positioned and can also play a role in connecting the triangular pressure head cover plate (4-1) with the die (4-3) with the semicircular groove; the pin bolts (4-2) can be correspondingly inserted into the round holes (4-1-1), and the distance between the round holes is not less than 60 mm; when preparing the semicircular recombined bamboo member (1) with the sharp concave inside the excircle, firstly, bamboo bundles after series treatment are placed into a mould (4-3) with a semicircular groove after gum dipping and gum draining, a triangular pressure head cover plate (4-1) is covered, a pin bolt (4-2) passes through a corresponding round hole (4-1-1), then, a pressure action device (4-4) applies pressure to the triangular pressure head cover plate (4-1) along the length direction of the mould, a bolt on the pin bolt (4-2) is screwed tightly, and after the bolt is placed for not less than 24 hours, the mould is removed, so that the recombined bamboo member (1) with the shape of being not less than 24 hours can be obtainedThe edge of the outer-circle inner-tip concave semicircle recombined bamboo member (1) is properly cut, the two outer-circle inner-tip concave semicircle recombined bamboo members (1) are glued together to form a cylindrical member with an inner center being a quadrilateral hole (3) with the side length not less than 50mm, and finally, a bamboo skin layer (2) with the thickness not less than 10mm is wrapped on the outer side of the cylindrical member.

Reinforcing materials such as FRP (fiber reinforced Plastic) ribs or steel bars and the like can be embedded in the outer-circle inner-sharp concave semi-circular recombined bamboo component (1), the outer-circle inner-sharp concave semi-circular recombined bamboo component (1) can be replaced by a wood component formed by impregnating and pressing wood strips, and can also be a straw component formed by impregnating and pressing straws (one or more of wheat straws, rice straws, corn straws, sorghum straws, bean straws, pepper straws, rape straws, flax straws, reed straws, cotton straws and/or waste wood and scraps thereof).

The bamboo skin layer (2) can be replaced by one or more fiber winding layers of aramid fiber layers, carbon fibers, basalt fibers, glass fibers, high-strength plant fibers (such as bamboo fiber layers, hemp fiber layers and the like) and the like.

The quadrilateral holes (3) can be hollow, and can also be mixed and filled by one or more materials of bamboo, wood, wheat straw, rice straw, corn stalk, sorghum stalk, bean stalk, pepper stalk, rape stalk, flax stalk, reed stalk, cotton stalk and/or waste wood and scraps thereof, concrete, soil, mortar, gypsum, lime, various construction waste crushed materials and the like.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.